major: improvements and functions

Features: - Added page for an overview of establishments with a possibility to request a membership. - Added page for admins of an establishment to accept or deny those candidates. This is currently only usable via URL, the navigation to this site is not yet implemented in the HTML files. - Added page to add new establishments by providing a name. Improvements: - Better folder structure. - The establishment-specific overview can now be viewed with another URL, as well as some other pages. Bugfixes: - Seriously I don't know anymore what I fixed and what not. But it works just better now :) Future: - Angular has been added to separate the Flask-Backend with the frontend. Angular is currently not connected to the backend, but this will change in the future.
2023-03-19 12:31:10 +01:00 · 2023-03-19 12:31:10 +01:00 · 2e33f9b5a8
commit 2e33f9b5a8
parent 764738b20d
130 changed files with 13980 additions and 585 deletions
--- a/.dockerignore
+++ b/.dockerignore
@ -0,0 +1,9 @@
 # Ignore pycaches
 logs
 __pycache__
 .flaskenv
 .env*
 .flaskenv*
 !.env.project
 !.env.vault
--- a/.env.vault
+++ b/.env.vault
@ -0,0 +1,12 @@
 #################################################################################
 #                                                                               #
 #          This file uniquely identifies your project in dotenv-vault.          #
 #               You SHOULD commit this file to source control.                  #
 #                                                                               #
 #                    Generated with 'npx dotenv-vault new'                      #
 #                                                                               #
 #                 Learn more at https://dotenv.org/env-vault                    #
 #                                                                               #
 #################################################################################
 DOTENV_VAULT=vlt_54536d38674329461d10b74ec7e56be43df6021bb5267bedec1f774758371784
--- a/.gitignore
+++ b/.gitignore
@ -1,3 +1,45 @@
 # Created by https://www.toptal.com/developers/gitignore/api/flask,python,git,visualstudiocode,angular,venv
 # Edit at https://www.toptal.com/developers/gitignore?templates=flask,python,git,visualstudiocode,angular,venv
 ### Angular ###
 ## Angular ##
 # compiled output
 dist/
 tmp/
 app/**/*.js
 app/**/*.js.map
 # dependencies
 node_modules/
 bower_components/
 # IDEs and editors
 .idea/
 # misc
 .sass-cache/
 connect.lock/
 coverage/
 libpeerconnection.log/
 npm-debug.log
 testem.log
 typings/
 .angular/
 # e2e
 e2e/*.js
 e2e/*.map
 # System Files
 .DS_Store/
 ### Flask ###
 instance/*
 !instance/.gitignore
 .webassets-cache
 .env
 ### Flask.Python Stack ###
 # Byte-compiled / optimized / DLL files
 __pycache__/
 *.py[cod]
@ -10,7 +52,6 @@ __pycache__/
 .Python
 build/
 develop-eggs/
 dist/
 downloads/
 eggs/
 .eggs/
@ -20,7 +61,6 @@ parts/
 sdist/
 var/
 wheels/
 pip-wheel-metadata/
 share/python-wheels/
 *.egg-info/
 .installed.cfg
@ -50,6 +90,7 @@ coverage.xml
 *.py,cover
 .hypothesis/
 .pytest_cache/
 cover/
 # Translations
 *.mo
@ -63,7 +104,6 @@ db.sqlite3-journal
 # Flask stuff:
 instance/
 .webassets-cache
 # Scrapy stuff:
 .scrapy
@ -72,6 +112,7 @@ instance/
 docs/_build/
 # PyBuilder
 .pybuilder/
 target/
 # Jupyter Notebook
@ -82,7 +123,9 @@ profile_default/
 ipython_config.py
 # pyenv
-.python-version
+#   For a library or package, you might want to ignore these files since the code is
 #   intended to run in multiple environments; otherwise, check them in:
 # .python-version
 # pipenv
 #   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
@ -91,7 +134,22 @@ ipython_config.py
 #   install all needed dependencies.
 #Pipfile.lock
-# PEP 582; used by e.g. github.com/David-OConnor/pyflow
+# poetry
 #   Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
 #   This is especially recommended for binary packages to ensure reproducibility, and is more
 #   commonly ignored for libraries.
 #   https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
 #poetry.lock
 # pdm
 #   Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
 #pdm.lock
 #   pdm stores project-wide configurations in .pdm.toml, but it is recommended to not include it
 #   in version control.
 #   https://pdm.fming.dev/#use-with-ide
 .pdm.toml
 # PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
 __pypackages__/
 # Celery stuff
@ -102,9 +160,7 @@ celerybeat.pid
 *.sage.py
 # Environments
 .env
 .venv
 .flaskenv
 env/
 venv/
 ENV/
@ -129,6 +185,157 @@ dmypy.json
 # Pyre type checker
 .pyre/
 # pytype static type analyzer
 .pytype/
 # Cython debug symbols
 cython_debug/
 # PyCharm
 #  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
 #  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
 #  and can be added to the global gitignore or merged into this file.  For a more nuclear
 #  option (not recommended) you can uncomment the following to ignore the entire idea folder.
 #.idea/
 ### Git ###
 # Created by git for backups. To disable backups in Git:
 # $ git config --global mergetool.keepBackup false
 *.orig
 # Created by git when using merge tools for conflicts
 *.BACKUP.*
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 *_BACKUP_*.txt
 *_BASE_*.txt
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 ### Python ###
 # Byte-compiled / optimized / DLL files
 # C extensions
 # Distribution / packaging
 # PyInstaller
 #  Usually these files are written by a python script from a template
 #  before PyInstaller builds the exe, so as to inject date/other infos into it.
 # Installer logs
 # Unit test / coverage reports
 # Translations
 # Django stuff:
 # Flask stuff:
 # Scrapy stuff:
 # Sphinx documentation
 # PyBuilder
 # Jupyter Notebook
 # IPython
 # pyenv
 #   For a library or package, you might want to ignore these files since the code is
 #   intended to run in multiple environments; otherwise, check them in:
 # .python-version
 # pipenv
 #   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
 #   However, in case of collaboration, if having platform-specific dependencies or dependencies
 #   having no cross-platform support, pipenv may install dependencies that don't work, or not
 #   install all needed dependencies.
 # poetry
 #   Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
 #   This is especially recommended for binary packages to ensure reproducibility, and is more
 #   commonly ignored for libraries.
 #   https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
 # pdm
 #   Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
 #   pdm stores project-wide configurations in .pdm.toml, but it is recommended to not include it
 #   in version control.
 #   https://pdm.fming.dev/#use-with-ide
 # PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
 # Celery stuff
 # SageMath parsed files
 # Environments
 # Spyder project settings
 # Rope project settings
 # mkdocs documentation
 # mypy
 # Pyre type checker
 # pytype static type analyzer
 # Cython debug symbols
 # PyCharm
 #  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
 #  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
 #  and can be added to the global gitignore or merged into this file.  For a more nuclear
 #  option (not recommended) you can uncomment the following to ignore the entire idea folder.
 ### Python Patch ###
 # Poetry local configuration file - https://python-poetry.org/docs/configuration/#local-configuration
 poetry.toml
 # ruff
 .ruff_cache/
 ### venv ###
 # Virtualenv
 # http://iamzed.com/2009/05/07/a-primer-on-virtualenv/
 [Bb]in
 [Ii]nclude
 [Ll]ib
 [Ll]ib64
 [Ll]ocal
 [Ss]cripts
 pyvenv.cfg
 pip-selfcheck.json
 ### VisualStudioCode ###
 .vscode/*
 !.vscode/settings.json
 !.vscode/tasks.json
 !.vscode/launch.json
 !.vscode/extensions.json
 !.vscode/*.code-snippets
 # Local History for Visual Studio Code
 .history/
 # Built Visual Studio Code Extensions
 *.vsix
 ### VisualStudioCode Patch ###
 # Ignore all local history of files
 .history
 .ionide
 # End of https://www.toptal.com/developers/gitignore/api/flask,python,git,visualstudiocode,angular,venv
 # Misc
 config.yaml
 scans.json
@ -136,3 +343,8 @@ test.*
 *.db
 .vscode
 *.tar
 *.code-workspace
 .env*
 .flaskenv*
 !.env.project
 !.env.vault
--- a/28
+++ b/28
@ -1,27 +1,25 @@
-FROM python@sha256:38000b248a186dcae150fe2f64d23bd44a0730347d1e5e4d1faedd449a9a4913
+FROM python@sha256:53da4973924b6b3da6eb34f98e4e9dffdaf1cc05b468da73c69e3a862c36ee19
 # python:3.10.10-slim-bullseye
 RUN useradd costhive
-RUN useradd scan2kasse
+WORKDIR /home/costhive
-WORKDIR /home/scan2kasse
+RUN apt update && apt -y upgrade
 RUN apt update && apt upgrade
 RUN apt install -y libpq-dev gcc g++
-COPY requirements.txt requirements.txt
+RUN python -m pip install pipenv
 RUN python -m venv venv
 RUN venv/bin/pip install -r requirements.txt
 RUN venv/bin/pip install gunicorn
-COPY app app
+COPY boot.sh ./
 COPY migrations migrations
 COPY configs configs
 COPY run.py boot.sh ./
 RUN chmod +x boot.sh
 COPY backend backend
 ENV FLASK_APP run.py
-RUN chown -R scan2kasse:scan2kasse ./
+RUN chown -R costhive:costhive ./
-USER scan2kasse
+USER costhive
 RUN cd backend && pipenv install && pipenv install gunicorn && cd ..
 EXPOSE 5000
 ENTRYPOINT ["./boot.sh"]
--- a/README.md
+++ b/README.md
@ -1 +1 @@
-# WG_Scan2Kasse
+# CostHive
--- a/app/api/init.py
+++ b/app/api/init.py
@ -1,5 +0,0 @@
 from flask import Blueprint
 bp = Blueprint('api', __name__)
 from app.api import routes
--- a/app/auth/init.py
+++ b/app/auth/init.py
@ -1,5 +0,0 @@
 from flask import Blueprint
 bp = Blueprint('auth', __name__)
 from app.auth import forms, routes
--- a/app/errors/init.py
+++ b/app/errors/init.py
@ -1,5 +0,0 @@
 from flask import Blueprint
 bp = Blueprint('errors', __name__)
 from app.errors import handlers
--- a/app/main/routes.py
+++ b/app/main/routes.py
@ -1,119 +0,0 @@
 from app import db, LOGGER
 from app.main.forms import NewItemForm
 from app.main import bp
 from app.models import AmountChange, Brand, Establishment, LoginToken, Item, PriceChange
 from app.utils import view_utils, database_utils
 from app.utils.routes_utils import render_custom_template as render_template
 from datetime import date
 from flask import abort, redirect, request, url_for
 from flask.json import jsonify
 from flask_login import current_user, login_required
@bp.route('/')
@bp.route('/index')
 def index():
    return render_template("base.html")
 # @bp.route('/')
 # def test():
 #     return "Hello World"
@bp.route('/overview', methods=['GET'])
@login_required
 def get_report_from_user():
    if current_user.is_anonymous:
        abort(403)
    if 'month' in request.args:
        try:
            month = int(request.args['month'])
        except Exception as e:
            LOGGER.exception("")
            abort(400)
        else:
            if (month > 12 or month < 1):
                abort(400)
    LOGGER.info("Getting results.")
    results = database_utils.get_report(**request.args)
    LOGGER.debug(f"Results received.")
    # LOGGER.debug(str(results))
    if results:
        result_list = view_utils.group_results(results)
    else:
        result_list = []
    if request.content_type == "application/json":
        return jsonify(result_list)
    else:
        if "establishment" in request.args:
            return render_template("main/overview.html", results=result_list, establishment = Establishment.query.get(int(request.args['establishment'])))
        else:
            return render_template("main/overview.html", results=result_list)
@bp.route('/token_authorization')
 def token_authorization():
    LOGGER.debug("Token Login")
    if not request.json or 'login' not in request.json:
        LOGGER.debug("JSON not delivered or 'login' not in JSON")
        abort(400)
    if not LoginToken.query.filter_by(token=request.json['login']).first():
        LOGGER.debug(f"Token <{request.json['login']}> not recognized")
        abort(403)
    LOGGER.debug("Token accepted")
    return jsonify({}), 200
@bp.route('/token_insert', methods=['POST'])
 def insert():
    match request.json:
        case {'user': user, 'items': items, 'date': date}:
            failed = database_utils.insert_bought_items(user, items, date)
        case {'user': user, 'items': items}:
            failed = database_utils.insert_bought_items(user, items)
        case _:
            abort(400)
    if failed:
        return jsonify(failed), 400
    return jsonify({'inserted': True}), 201
@bp.route('/new_item', methods=['GET', 'POST'])
@login_required
 def new_item():
    if current_user.is_anonymous:
        abort(403)
    form=NewItemForm.new()
    if form.is_submitted():
        LOGGER.debug("submitted")
    if form.validate():
        LOGGER.debug("valid")
    else:
        LOGGER.debug(form.errors)
    if form.validate_on_submit():
        LOGGER.debug("valid form")
        brand = Brand.query.get(form.brand.data)
        new_item = Item(id = form.id.data, name = form.name.data, brand = brand.id, description = form.description.data)
        # if form.category.data:
        #     category = Category.query.get(id = form.category.data)
        #     new_item.Category = category
        new_item.PriceChange = [PriceChange(Item = new_item, date = date(2021, 12, 1), price = form.price_change.data)]
        if form.amount_change.data:
            new_item.AmountChange = [AmountChange(Item = new_item, date = date(2021, 12, 1), amount = form.amount_change.data)]
        db.session.add(new_item)
        db.session.commit()
        return redirect(url_for('main.index'))
    return render_template('main/new_item.html', form=form)
@bp.route('/overview/register_boughts', methods=['GET'])
@login_required
 def check_unregistered_items():
    if current_user.is_anonymous or not request.args or 'establishment' not in request.args:
        abort(403)
    establishment = Establishment.query.get(int(request.args['establishment']))
    if current_user.id != establishment.owner:
        abort(403)
    results = database_utils.get_unregistered_and_register(establishment.id)
    if results:
        result_list = view_utils.group_results(results)
    else:
        result_list = []
    if request.content_type == "application/json":
        return jsonify(result_list)
    else:
        return render_template("main/overview.html", results=result_list)
--- a/app/models.py
+++ b/app/models.py
@ -1,147 +0,0 @@
 import jwt
 from app import db, login
 from datetime import date
 from flask import current_app
 from flask_login import UserMixin
 from time import time
 from werkzeug.security import generate_password_hash, check_password_hash
 item_category = db.Table("item_category",
    db.Column("item", db.ForeignKey("item.id"), primary_key=True, server_onupdate=db.FetchedValue()),
    db.Column("category", db.ForeignKey("category.id"), primary_key=True, server_onupdate=db.FetchedValue())
 )
 class User(UserMixin, db.Model):
    id = db.Column(db.BigInteger, primary_key=True)
    email = db.Column(db.String(255), nullable=False, unique=True)
    password_hash = db.Column(db.String(128), nullable=False)
    LoginToken = db.relationship("LoginToken", backref='User', lazy='dynamic')
    Bought = db.relationship("Bought", secondary="login_token",
        lazy='dynamic', overlaps="User,LoginToken")
    def set_password(self, password):
        self.password_hash = generate_password_hash(password)
    def check_password(self, password):
        return check_password_hash(self.password_hash, password)
    def get_reset_password_token(self, expires_in=600):
        return jwt.encode(
            {'reset_password': self.id, 'exp': time() + expires_in},
            current_app.config['SECRET_KEY'], algorithm='HS256')
    @staticmethod
    def verify_reset_password_token(token):
        try:
            id = jwt.decode(token, current_app.config['SECRET_KEY'],
                            algorithms=['HS256'])['reset_password']
        except:
            return
        return User.query.get(id)
    def __repr__(self) -> str:
        return f"<User {self.id} ({self.email})>"
 class Establishment(db.Model):
    id = db.Column(db.BigInteger, primary_key=True)
    name = db.Column(db.String(64), nullable=False)
    owner = db.Column(db.ForeignKey('user.id'), nullable=False)
    LoginToken = db.relationship("LoginToken", backref='Establishment', lazy='dynamic')
    Bought = db.relationship("Bought", secondary="login_token",
        lazy='dynamic', overlaps="Establishment,LoginToken,Bought")
    def __repr__(self) -> str:
        return f"<Establishment {self.id} ({self.name})>"
 class LoginToken(db.Model):
    user = db.Column(db.ForeignKey('user.id'), primary_key=True, server_onupdate=db.FetchedValue())
    establishment = db.Column(db.ForeignKey('establishment.id'), primary_key=True, server_onupdate=db.FetchedValue())
    token = db.Column(db.String(15), nullable=False, unique=True)
    paid = db.Column(db.BigInteger, nullable=False, server_default=str(0))
    Receipt = db.relationship("Receipt", backref='LoginToken', lazy='dynamic')
    def __repr__(self) -> str:
        return f"LoginToken {self.token}"
 class Brand(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(32), nullable=False)
    def __repr__(self) -> str:
        return f"<Brand {self.id} ({self.name})>"
 class Category(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(32), nullable=False, unique=True)
    Item = db.relationship("Item", secondary=item_category, lazy="dynamic", back_populates="Category")
    def __repr__(self) -> str:
        return f"<Category {self.id} ({self.name})>"
 class Item(db.Model):
    id = db.Column(db.BigInteger, primary_key=True, autoincrement=False)
    name = db.Column(db.String(64), nullable=False)
    brand = db.Column(db.ForeignKey('brand.id'), nullable=False, server_onupdate=db.FetchedValue())
    description = db.Column(db.Text, nullable=False)
    Category = db.relationship("Category", secondary=item_category, lazy="dynamic", back_populates="Item")
    Bought = db.relationship("Bought", backref='Item', lazy='dynamic')
    PriceChange = db.relationship("PriceChange", backref='Item', lazy='dynamic')
    AmountChange = db.relationship("AmountChange", backref='Item', lazy='dynamic')
    def __repr__(self) -> str:
        return f"<Item {self.id} ({self.name})>"
 class Bought(db.Model):
    token = db.Column(db.ForeignKey('login_token.token'), primary_key=True, server_onupdate=db.FetchedValue())
    item = db.Column(db.ForeignKey('item.id'), primary_key=True, server_onupdate=db.FetchedValue())
    date = db.Column(db.Date, primary_key=True)
    amount = db.Column(db.SmallInteger, nullable=False)
    registered = db.Column(db.Boolean, nullable=False, server_default=str(False))
    def __repr__(self) -> str:
        return f"<Bought Object>"
 class PriceChange(db.Model):
    item = db.Column(db.ForeignKey('item.id'), primary_key=True, server_onupdate=db.FetchedValue())
    date = db.Column(db.Date, primary_key=True, server_default=str(date(2021, 12, 1)))
    price = db.Column(db.SmallInteger, nullable=False)
    def __repr__(self) -> str:
        return f"<Price_Change {self.item} ({self.date})>"
 class AmountChange(db.Model):
    item = db.Column(db.ForeignKey('item.id'), primary_key=True, server_onupdate=db.FetchedValue())
    date = db.Column(db.Date, primary_key=True, server_default=str(date(2021, 12, 1)))
    amount = db.Column(db.SmallInteger, nullable=False, server_default=str(1))
    def __repr__(self) -> str:
        return f"<Amount_Change {self.item} ({self.date})>"
 class Receipt(db.Model):
    id = db.Column(db.Numeric(precision=24, scale=0), primary_key=True, autoincrement=False)
    date = db.Column(db.Date, nullable=False)
    from_user = db.Column(db.ForeignKey("login_token.token"), server_onupdate=db.FetchedValue())
    registered = db.Column(db.Boolean, nullable=False, server_default=str(False))
    ItemReceipt = db.relationship("ItemReceipt", backref='Receipt', lazy='dynamic')
    def __repr__(self) -> str:
        return f"<Receipt {self.id}>"
 class ItemReceipt(db.Model):
    receipt = db.Column(db.ForeignKey("receipt.id"), primary_key=True, server_onupdate=db.FetchedValue())
    item = db.Column(db.ForeignKey("item.id"), primary_key=True, server_onupdate=db.FetchedValue())
    amount = db.Column(db.SmallInteger, nullable=False)
    def __repr__(self) -> str:
        return f"<ItemReceipt {self.receipt}: {self.item}>"
@login.user_loader
 def load_user(id):
    return User.query.get(int(id))
--- a/app/receipts/init.py
+++ b/app/receipts/init.py
@ -1,5 +0,0 @@
 from flask import Blueprint
 bp = Blueprint('receipts', __name__)
 from app.receipts import forms, routes
--- a/app/templates/base.html
+++ b/app/templates/base.html
@ -1,125 +0,0 @@
 {% extends "bootstrap/base.html" %}
 {% block title %}
    {% if title %}
        {{ title }}
    {% else %}
        Scan2Kasse
    {% endif %}
 {% endblock %}
 {% block metas %}
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
 {% endblock %}
 {% block styles %}
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3" crossorigin="anonymous">
    <link rel="stylesheet" href={{ url_for('static', filename="sidebars.css")}}>
 {% endblock %}
 {% block navbar %}
    <main>
        <div class="flex-shrink-0 p-3 bg-black bg-opacity-10 scrollbar-primary h-100 position-fixed" style="width: 280px;">
            <a href="/" class="d-flex align-items-center pb-3 mb-3 link-dark text-decoration-none border-bottom border-dark">
                <svg class="bi me-2" width="30" height="24"><use xlink:href="#bootstrap"></use></svg>
                <span class="fs-5 fw-semibold">Scan2Kasse</span>
            </a>
            <ul class="list-unstyled ps-0">
                <li class="mb-1">
                    <button class="btn btn-toggle align-items-center rounded collapsed" data-bs-toggle="collapse" data-bs-target="#home-collapse" aria-expanded="true">
                    Home (WIP)
                    </button>
                    <div class="collapse show" id="home-collapse">
                        <ul class="btn-toggle-nav list-unstyled fw-normal pb-1 small">
                            <li><a href="#" class="link-dark rounded">Übersicht</a></li>
                            <li><a href="#" class="link-dark rounded">Updates</a></li>
                            <li><a href="#" class="link-dark rounded">Reports</a></li>
                        </ul>
                    </div>
                </li>
                <li class="mb-1">
                    <button class="btn btn-toggle align-items-center rounded collapsed" data-bs-toggle="collapse" data-bs-target="#dashboard-collapse" aria-expanded="false">
                    Übersicht
                    </button>
                    <div class="collapse" id="dashboard-collapse">
                        <ul class="btn-toggle-nav list-unstyled fw-normal pb-1 small">
                            {% if establishments %}
                                <!-- <li><a href="#" class="link-dark rounded">Allgemein</a></li> -->
                                {% for establishment in establishments %}
                                    <li>
                                        <button class="btn btn-toggle align-items-center rounded collapsed" data-bs-toggle="collapse" data-bs-target="#est_{{ establishment.id }}" aria-expanded="false">
                                            {{ establishment.name }}
                                        </button>
                                        <div class="collapse" id="est_{{ establishment.id }}">
                                            <ul class="btn-toggle-nav list-unstyled fw-normal pb-1 small">
                                                <li><a href="{{ url_for('main.get_report_from_user', establishment=establishment.id) }}" class="link-dark rounded">Übersicht</a></li>
                                            </ul>
                                        </div>
                                    </li>
                                {% endfor %}
                            {% endif %}
                        </ul>
                    </div>
                </li>
                <!-- <li class="mb-1">
                    <button class="btn btn-toggle align-items-center rounded collapsed" data-bs-toggle="collapse" data-bs-target="#orders-collapse" aria-expanded="false">
                    Orders
                    </button>
                    <div class="collapse" id="orders-collapse">
                        <ul class="btn-toggle-nav list-unstyled fw-normal pb-1 small">
                            <li><a href="#" class="link-dark rounded">New</a></li>
                            <li><a href="#" class="link-dark rounded">Processed</a></li>
                            <li><a href="#" class="link-dark rounded">Shipped</a></li>
                            <li><a href="#" class="link-dark rounded">Returned</a></li>
                        </ul>
                    </div>
                </li> -->
                <li class="border-top border-dark my-3"></li>
                <li class="mb-1">
                    <button class="btn btn-toggle align-items-center rounded collapsed" data-bs-toggle="collapse" data-bs-target="#account-collapse" aria-expanded="false">
                    Account
                    </button>
                    <div class="collapse" id="account-collapse" style="">
                        <ul class="btn-toggle-nav list-unstyled fw-normal pb-1 small">
                            <!-- <li><a href="#" class="link-dark rounded">New...</a></li>
                                <li><a href="#" class="link-dark rounded">Settings</a></li> -->
                            {% if current_user.is_authenticated %}
                            <!-- <li><a href="#" class="link-dark rounded">Profile</a></li> -->
                            <li><a href={{ url_for('auth.web_logout') }} class="link-dark rounded">Sign out</a></li>
                            {% else %}
                            <li><a href={{ url_for('auth.web_register') }} class="link-dark rounded">Register</a></li>
                            <li><a href={{ url_for('auth.web_login') }} class="link-dark rounded">Sign in</a></li>
                            {% endif %}
                        </ul>
                    </div>
                </li>
            </ul>
        </div>
 {% endblock %}
 {% block content %}
    {% with messages = get_flashed_messages() %}
        {% if messages %}
            <ul>
                {% for message in messages %}
                <li>{{ message }}</li>
                {% endfor %}
            </ul>
        {% endif %}
    {% endwith %}
    <div style="width: 280px;"></div>
    <div class="container">
        <div class="row my-3"></div>
        <div class="row-md-3">
            {% block app_content %}{% endblock %}
        </div>
        <div class="row my-3"></div>
    </div>
 </main>
 {% endblock %}
 {% block scripts %}
    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.bundle.min.js" integrity="sha384-ka7Sk0Gln4gmtz2MlQnikT1wXgYsOg+OMhuP+IlRH9sENBO0LRn5q+8nbTov4+1p" crossorigin="anonymous"></script>
    <!-- <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script> -->
 {% endblock %}
--- a/app/templates/main/new_item.html
+++ b/app/templates/main/new_item.html
@ -1,17 +0,0 @@
 {% extends "base.html" %}
 {% import 'bootstrap/wtf.html' as wtf %}
 {% block app_content %}
 <form action="" method="post">
    {{ form.hidden_tag() }}
    {{ wtf.form_field(form.id, class=form.id.render_kw["class"] or "form-control mb-3") }}
    {{ wtf.form_field(form.name, class=form.name.render_kw["class"] or "form-control mb-3") }}
    {{ wtf.form_field(form.description, class=form.description.render_kw["class"] or "form-control mb-3") }}
    {{ wtf.form_field(form.date, class=form.date.render_kw["class"] or "form-control mb-3") }}
    {{ wtf.form_field(form.price_change, class=form.price_change.render_kw["class"] or "form-control mb-3") }}
    {{ wtf.form_field(form.amount_change, class=form.amount_change.render_kw["class"] or "form-control mb-3") }}
    {{ wtf.form_field(form.category, class=form.category.render_kw["class"] or "form-control mb-3") }}
    {{ wtf.form_field(form.brand, class=form.brand.render_kw["class"] or "form-control mb-3") }}
    {{ wtf.form_field(form.submit, class=form.submit.render_kw["class"] or "btn btn-primary  mt-3") }}
 </form>
 {% endblock %}
--- a/app/templates/main/overview.html
+++ b/app/templates/main/overview.html
@ -1,38 +0,0 @@
 {% extends "base.html" %}
 {% block app_content %}
    {% if establishment %}
        {% if current_user.id == establishment.owner %}
        <button type="button" class="btn btn-outline-dark px-2" data-bs-toggle="button" autocomplete="off" onclick="window.location.href='{{ url_for('main.check_unregistered_items', establishment=establishment.id) }}'">
            Abrechnung
        </button>
        {% endif %}
    {% endif %}
    {% for user in results %}
        <div class="card">
            <button class="btn btn-primary" data-bs-toggle="collapse" data-bs-target="#b{{ user.id }}" aria-expanded="true">
                <div class="card-header">
                    <h3>{{ user.email }}: {{ user.sum/100 }} €</h3>
                </div>
            </button>
            <div class="collapse" id="b{{ user.id }}">
                {% for item_infos in user.item_infos %}
                <div class="card-body">
                    <div class="col-sm-1"></div>
                    <div class="col">
                        <h4>{{ item_infos.date }}</h4>
                        {% for item in item_infos.item_list %}
                            <div class="row">
                                <div class="col-sm-1"></div>
                                <div class="col">
                                    {{ item.amount }}x {{ item.name }} je {{ item.price/100 }} €
                                </div>
                            </div>
                        {% endfor %}
                    </div>
                </div>
                {% endfor %}
            </div>
        </div>
    {% endfor %}
 {% endblock %}
--- a/backend/Pipfile
+++ b/backend/Pipfile
@ -0,0 +1,25 @@
 [[source]]
 url = "https://pypi.org/simple"
 verify_ssl = true
 name = "pypi"
 [packages]
 email-validator = "*"
 flask = "*"
 flask-bootstrap = "*"
 flask-login = "*"
 flask-mail = "*"
 flask-migrate = "*"
 flask-sqlalchemy = "*"
 flask-wtf = "*"
 psycopg2-binary = "*"
 pyjwt = "*"
 python-dotenv = "*"
 pymupdf = "*"
 sqlalchemy-utils = "*"
 [dev-packages]
 [requires]
 python_version = "3.10"
 python_full_version = "3.10.10"
--- a/backend/Pipfile.lock
+++ b/backend/Pipfile.lock
@ -0,0 +1,500 @@
 {
    "_meta": {
        "hash": {
            "sha256": "92648b89cfca30fdd2c1a1258fd13c9249dffdcd9450c342a5c8bdf5d433b852"
        },
        "pipfile-spec": 6,
        "requires": {
            "python_full_version": "3.10.10",
            "python_version": "3.10"
        },
        "sources": [
            {
                "name": "pypi",
                "url": "https://pypi.org/simple",
                "verify_ssl": true
            }
        ]
    },
    "default": {
        "alembic": {
            "hashes": [
                "sha256:4d3bd32ecdbb7bbfb48a9fe9e6d6fd6a831a1b59d03e26e292210237373e7db5",
                "sha256:6f1c2207369bf4f49f952057a33bb017fbe5c148c2a773b46906b806ea6e825f"
            ],
            "markers": "python_version >= '3.7'",
            "version": "==1.9.4"
        },
        "blinker": {
            "hashes": [
                "sha256:1eb563df6fdbc39eeddc177d953203f99f097e9bf0e2b8f9f3cf18b6ca425e36",
                "sha256:923e5e2f69c155f2cc42dafbbd70e16e3fde24d2d4aa2ab72fbe386238892462"
            ],
            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
            "version": "==1.5"
        },
        "click": {
            "hashes": [
                "sha256:7682dc8afb30297001674575ea00d1814d808d6a36af415a82bd481d37ba7b8e",
                "sha256:bb4d8133cb15a609f44e8213d9b391b0809795062913b383c62be0ee95b1db48"
            ],
            "markers": "python_version >= '3.7'",
            "version": "==8.1.3"
        },
        "colorama": {
            "hashes": [
                "sha256:08695f5cb7ed6e0531a20572697297273c47b8cae5a63ffc6d6ed5c201be6e44",
                "sha256:4f1d9991f5acc0ca119f9d443620b77f9d6b33703e51011c16baf57afb285fc6"
            ],
            "markers": "platform_system == 'Windows'",
            "version": "==0.4.6"
        },
        "dnspython": {
            "hashes": [
                "sha256:224e32b03eb46be70e12ef6d64e0be123a64e621ab4c0822ff6d450d52a540b9",
                "sha256:89141536394f909066cabd112e3e1a37e4e654db00a25308b0f130bc3152eb46"
            ],
            "markers": "python_version >= '3.7' and python_version < '4.0'",
            "version": "==2.3.0"
        },
        "dominate": {
            "hashes": [
                "sha256:520101360892ebf9d0553f67d37e359ff92403d8a1e33814030503088a05da49",
                "sha256:5fe4258614687c6d3de67b0bbd881ed435a93a19742ae187344055db17052402"
            ],
            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
            "version": "==2.7.0"
        },
        "email-validator": {
            "hashes": [
                "sha256:49a72f5fa6ed26be1c964f0567d931d10bf3fdeeacdf97bc26ef1cd2a44e0bda",
                "sha256:d178c5c6fa6c6824e9b04f199cf23e79ac15756786573c190d2ad13089411ad2"
            ],
            "index": "pypi",
            "version": "==1.3.1"
        },
        "flask": {
            "hashes": [
                "sha256:7eb373984bf1c770023fce9db164ed0c3353cd0b53f130f4693da0ca756a2e6d",
                "sha256:c0bec9477df1cb867e5a67c9e1ab758de9cb4a3e52dd70681f59fa40a62b3f2d"
            ],
            "index": "pypi",
            "version": "==2.2.3"
        },
        "flask-bootstrap": {
            "hashes": [
                "sha256:cb08ed940183f6343a64e465e83b3a3f13c53e1baabb8d72b5da4545ef123ac8"
            ],
            "index": "pypi",
            "version": "==3.3.7.1"
        },
        "flask-login": {
            "hashes": [
                "sha256:1ef79843f5eddd0f143c2cd994c1b05ac83c0401dc6234c143495af9a939613f",
                "sha256:c0a7baa9fdc448cdd3dd6f0939df72eec5177b2f7abe6cb82fc934d29caac9c3"
            ],
            "index": "pypi",
            "version": "==0.6.2"
        },
        "flask-mail": {
            "hashes": [
                "sha256:22e5eb9a940bf407bcf30410ecc3708f3c56cc44b29c34e1726fe85006935f41"
            ],
            "index": "pypi",
            "version": "==0.9.1"
        },
        "flask-migrate": {
            "hashes": [
                "sha256:73293d40b10ac17736e715b377e7b7bde474cb8105165d77474df4c3619b10b3",
                "sha256:77580f27ab39bc68be4906a43c56d7674b45075bc4f883b1d0b985db5164d58f"
            ],
            "index": "pypi",
            "version": "==4.0.4"
        },
        "flask-sqlalchemy": {
            "hashes": [
                "sha256:2764335f3c9d7ebdc9ed6044afaf98aae9fa50d7a074cef55dde307ec95903ec",
                "sha256:add5750b2f9cd10512995261ee2aa23fab85bd5626061aa3c564b33bb4aa780a"
            ],
            "index": "pypi",
            "version": "==3.0.3"
        },
        "flask-wtf": {
            "hashes": [
                "sha256:41c4244e9ae626d63bed42ae4785b90667b885b1535d5a4095e1f63060d12aa9",
                "sha256:7887d6f1ebb3e17bf648647422f0944c9a469d0fcf63e3b66fb9a83037e38b2c"
            ],
            "index": "pypi",
            "version": "==1.1.1"
        },
        "greenlet": {
            "hashes": [
                "sha256:03a8f4f3430c3b3ff8d10a2a86028c660355ab637cee9333d63d66b56f09d52a",
                "sha256:0bf60faf0bc2468089bdc5edd10555bab6e85152191df713e2ab1fcc86382b5a",
                "sha256:18a7f18b82b52ee85322d7a7874e676f34ab319b9f8cce5de06067384aa8ff43",
                "sha256:18e98fb3de7dba1c0a852731c3070cf022d14f0d68b4c87a19cc1016f3bb8b33",
                "sha256:1a819eef4b0e0b96bb0d98d797bef17dc1b4a10e8d7446be32d1da33e095dbb8",
                "sha256:26fbfce90728d82bc9e6c38ea4d038cba20b7faf8a0ca53a9c07b67318d46088",
                "sha256:2780572ec463d44c1d3ae850239508dbeb9fed38e294c68d19a24d925d9223ca",
                "sha256:283737e0da3f08bd637b5ad058507e578dd462db259f7f6e4c5c365ba4ee9343",
                "sha256:2d4686f195e32d36b4d7cf2d166857dbd0ee9f3d20ae349b6bf8afc8485b3645",
                "sha256:2dd11f291565a81d71dab10b7033395b7a3a5456e637cf997a6f33ebdf06f8db",
                "sha256:30bcf80dda7f15ac77ba5af2b961bdd9dbc77fd4ac6105cee85b0d0a5fcf74df",
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                "sha256:d5508f0b173e6aa47273bdc0a0b5ba055b59662ba7c7ee5119528f466585526b",
                "sha256:d75209eed723105f9596807495d58d10b3470fa6732dd6756595e89925ce2470",
                "sha256:db1a39669102a1d8d12b57de2bb7e2ec9066a6f2b3da35ae511ff93b01b5d564",
                "sha256:dbfcfc0218093a19c252ca8eb9aee3d29cfdcb586df21049b9d777fd32c14fd9",
                "sha256:e0f72c9ddb8cd28532185f54cc1453f2c16fb417a08b53a855c4e6a418edd099",
                "sha256:e7c8dc13af7db097bed64a051d2dd49e9f0af495c26995c00a9ee842690d34c0",
                "sha256:ea9872c80c132f4663822dd2a08d404073a5a9b5ba6155bea72fb2a79d1093b5",
                "sha256:eff4eb9b7eb3e4d0cae3d28c283dc16d9bed6b193c2e1ace3ed86ce48ea8df19",
                "sha256:f82d4d717d8ef19188687aa32b8363e96062911e63ba22a0cff7802a8e58e5f1",
                "sha256:fc3a569657468b6f3fb60587e48356fe512c1754ca05a564f11366ac9e306526"
            ],
            "markers": "platform_machine == 'aarch64' or (platform_machine == 'ppc64le' or (platform_machine == 'x86_64' or (platform_machine == 'amd64' or (platform_machine == 'AMD64' or (platform_machine == 'win32' or platform_machine == 'WIN32')))))",
            "version": "==2.0.2"
        },
        "idna": {
            "hashes": [
                "sha256:814f528e8dead7d329833b91c5faa87d60bf71824cd12a7530b5526063d02cb4",
                "sha256:90b77e79eaa3eba6de819a0c442c0b4ceefc341a7a2ab77d7562bf49f425c5c2"
            ],
            "markers": "python_version >= '3.5'",
            "version": "==3.4"
        },
        "itsdangerous": {
            "hashes": [
                "sha256:2c2349112351b88699d8d4b6b075022c0808887cb7ad10069318a8b0bc88db44",
                "sha256:5dbbc68b317e5e42f327f9021763545dc3fc3bfe22e6deb96aaf1fc38874156a"
            ],
            "markers": "python_version >= '3.7'",
            "version": "==2.1.2"
        },
        "jinja2": {
            "hashes": [
                "sha256:31351a702a408a9e7595a8fc6150fc3f43bb6bf7e319770cbc0db9df9437e852",
                "sha256:6088930bfe239f0e6710546ab9c19c9ef35e29792895fed6e6e31a023a182a61"
            ],
            "markers": "python_version >= '3.7'",
            "version": "==3.1.2"
        },
        "mako": {
            "hashes": [
                "sha256:c97c79c018b9165ac9922ae4f32da095ffd3c4e6872b45eded42926deea46818",
                "sha256:d60a3903dc3bb01a18ad6a89cdbe2e4eadc69c0bc8ef1e3773ba53d44c3f7a34"
            ],
            "markers": "python_version >= '3.7'",
            "version": "==1.2.4"
        },
        "markupsafe": {
            "hashes": [
                "sha256:0576fe974b40a400449768941d5d0858cc624e3249dfd1e0c33674e5c7ca7aed",
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            ],
            "markers": "python_version >= '3.7'",
            "version": "==2.0.4"
        },
        "sqlalchemy-utils": {
            "hashes": [
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                "sha256:af803089a7929803faeb6173b90f29d1a67ad02f1d1e732f40b054a8eb3c7370"
            ],
            "index": "pypi",
            "version": "==0.40.0"
        },
        "typing-extensions": {
            "hashes": [
                "sha256:5cb5f4a79139d699607b3ef622a1dedafa84e115ab0024e0d9c044a9479ca7cb",
                "sha256:fb33085c39dd998ac16d1431ebc293a8b3eedd00fd4a32de0ff79002c19511b4"
            ],
            "markers": "python_version >= '3.7'",
            "version": "==4.5.0"
        },
        "visitor": {
            "hashes": [
                "sha256:2c737903b2b6864ebc6167eef7cf3b997126f1aa94bdf590f90f1436d23e480a"
            ],
            "version": "==0.1.3"
        },
        "werkzeug": {
            "hashes": [
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                "sha256:56433961bc1f12533306c624f3be5e744389ac61d722175d543e1751285da612"
            ],
            "markers": "python_version >= '3.7'",
            "version": "==2.2.3"
        },
        "wtforms": {
            "hashes": [
                "sha256:6b351bbb12dd58af57ffef05bc78425d08d1914e0fd68ee14143b7ade023c5bc",
                "sha256:837f2f0e0ca79481b92884962b914eba4e72b7a2daaf1f939c890ed0124b834b"
            ],
            "markers": "python_version >= '3.7'",
            "version": "==3.0.1"
        }
    },
    "develop": {}
 }
--- a/backend/README.md
+++ b/backend/README.md
--- a/backend/configs/config.py
+++ b/backend/configs/config.py
@ -19,3 +19,4 @@ class Config(object):
    MAIL_USERNAME = os.environ.get('MAIL_USERNAME')
    MAIL_PASSWORD = os.environ.get('MAIL_PASSWORD')
    ADMINS = ['postmaster@wpgcommunity.net']
    POSTS_PER_PAGE = 10
--- a/backend/configs/log.conf
+++ b/backend/configs/log.conf
--- a/backend/migrations/README
+++ b/backend/migrations/README
--- a/backend/migrations/alembic.ini
+++ b/backend/migrations/alembic.ini
--- a/backend/migrations/env.py
+++ b/backend/migrations/env.py
--- a/backend/migrations/script.py.mako
+++ b/backend/migrations/script.py.mako
--- a/backend/migrations/versions/05fce74b56cb_full_structure.py
+++ b/backend/migrations/versions/05fce74b56cb_full_structure.py
--- a/backend/migrations/versions/2be4d1ae5493_create_views.py
+++ b/backend/migrations/versions/2be4d1ae5493_create_views.py
@ -8,8 +8,8 @@ Create Date: 2022-02-20 16:33:01.900378
 from alembic import op
 import sqlalchemy as sa
-from app import db
+from src import db
-from app.utils.view_utils import selectable_price_per_amount_view, selectable_bought_with_prices_view
+from src.utils.view_utils import selectable_price_per_amount_view, selectable_bought_with_prices_view
 from sqlalchemy_utils import create_view
 # revision identifiers, used by Alembic.
@ -20,6 +20,7 @@ depends_on = None
 def upgrade():
    op.rename_table("item_receipt", "receipt_item")
    metadata = sa.MetaData()
    create_view('price_per_amount',
        selectable_price_per_amount_view(),
@ -36,3 +37,4 @@ def downgrade():
    with db.engine.connect() as con:
        con.execute("DROP VIEW bought_with_prices;")
        con.execute("DROP VIEW price_per_amount;")
    op.rename_table("receipt_item", "item_receipt")
--- a/backend/migrations/versions/610854a6e2a0_establishment_candidate_table.py
+++ b/backend/migrations/versions/610854a6e2a0_establishment_candidate_table.py
@ -0,0 +1,53 @@
 """establishment candidate table
 Revision ID: 610854a6e2a0
 Revises: 2be4d1ae5493
 Create Date: 2023-03-18 13:36:12.953900
 """
 from alembic import op
 import sqlalchemy as sa
 # revision identifiers, used by Alembic.
 revision = '610854a6e2a0'
 down_revision = '2be4d1ae5493'
 branch_labels = None
 depends_on = None
 def upgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    op.create_table('establishment_candidate',
    sa.Column('user', sa.BigInteger(), nullable=False),
    sa.Column('establishment', sa.BigInteger(), nullable=False),
    sa.ForeignKeyConstraint(['establishment'], ['establishment.id'], ),
    sa.ForeignKeyConstraint(['user'], ['user.id'], ),
    sa.PrimaryKeyConstraint('user', 'establishment')
    )
    op.create_table('payment',
    sa.Column('id', sa.BigInteger(), nullable=False),
    sa.Column('token', sa.String(length=15), nullable=False),
    sa.Column('date', sa.Date(), server_default=sa.text('now()'), nullable=False),
    sa.Column('amount', sa.BigInteger(), server_default='0', nullable=False),
    sa.ForeignKeyConstraint(['token'], ['login_token.token'], ),
    sa.PrimaryKeyConstraint('id', 'token')
    )
    with op.batch_alter_table('login_token', schema=None) as batch_op:
        batch_op.alter_column('token',
               existing_type=sa.VARCHAR(length=15),
               nullable=False)
    # ### end Alembic commands ###
 def downgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    with op.batch_alter_table('login_token', schema=None) as batch_op:
        batch_op.alter_column('token',
               existing_type=sa.VARCHAR(length=15),
               nullable=True)
    op.drop_table('payment')
    op.drop_table('establishment_candidate')
    # ### end Alembic commands ###
--- a/backend/run.py
+++ b/backend/run.py
@ -1,5 +1,5 @@
-from app import create_app, db
+from src import create_app, db
-from app.models import *
+from src.models import Bought, Establishment, Item, LoginToken, Receipt, User
 app = create_app()
--- a/backend/src/init.py
+++ b/backend/src/init.py
@ -42,17 +42,21 @@ def create_app(config_class=Config):
    mail.init_app(app)
    migrate.init_app(app, db, render_as_batch=True)
-    from app.auth import bp as auth_bp
+    from src.main import bp as main_bp
    app.register_blueprint(auth_bp, url_prefix='/auth')
    from app.errors import bp as errors_bp
    app.register_blueprint(errors_bp, url_prefix='/error')
    from app.main import bp as main_bp
    app.register_blueprint(main_bp)
-    from app.api import bp as api_bp
+    from src.auth import bp as auth_bp
-    app.register_blueprint(api_bp, url_prefix="/api")
+    app.register_blueprint(auth_bp)
-    from app.receipts import bp as receipts_bp
+    from src.errors import bp as error_bp
-    app.register_blueprint(receipts_bp, url_prefix='/receipts')
+    app.register_blueprint(error_bp)
    from src.api import bp as api_bp
    app.register_blueprint(api_bp)
    from src.receipts import bp as receipts_bp
    app.register_blueprint(receipts_bp)
    from src.item import bp as item_bp
    app.register_blueprint(item_bp)
    from src.establishment import bp as establishment_bp
    app.register_blueprint(establishment_bp)
    return app
-from app import models
+from src.models import *
--- a/backend/src/api/init.py
+++ b/backend/src/api/init.py
@ -0,0 +1,6 @@
 from flask import Blueprint
 bp = Blueprint('api', __name__, url_prefix='/api')
 from src.api.v1 import bp as bp_v1
 bp.register_blueprint(bp_v1)
--- a/backend/src/api/v1/init.py
+++ b/backend/src/api/v1/init.py
@ -0,0 +1,5 @@
 from flask import Blueprint
 bp = Blueprint('v1', __name__, url_prefix='/v1')
 from src.api.v1 import routes
--- a/backend/src/api/v1/routes.py
+++ b/backend/src/api/v1/routes.py
@ -1,11 +1,11 @@
-from app import LOGGER
+from src import LOGGER
-from app.main import bp
+from src.api import bp
-from app.models import LoginToken
+from src.models.login_token import LoginToken
-from app.utils import database_utils
+from src.utils import database_utils
 from flask import abort, request
 from flask.json import jsonify
-@bp.route('/auth')
+@bp.route('/')
 def token_authorization():
    LOGGER.debug("Token Login")
    if not request.json or 'login' not in request.json:
--- a/backend/src/auth/init.py
+++ b/backend/src/auth/init.py
@ -0,0 +1,5 @@
 from flask import Blueprint
 bp = Blueprint('auth', __name__, url_prefix='/auth')
 from src.auth import forms, routes
--- a/backend/src/auth/email.py
+++ b/backend/src/auth/email.py
@ -1,6 +1,6 @@
 from flask import current_app
-from app.utils.email import send_email
+from src.utils.email import send_email
-from app.utils.routes_utils import render_custom_template as render_template
+from src.utils.routes_utils import render_custom_template as render_template
 def send_password_reset_email(user):
--- a/backend/src/auth/forms.py
+++ b/backend/src/auth/forms.py
@ -1,4 +1,4 @@
-from app.models import User
+from src.models.user import User
 from flask_wtf import FlaskForm
 from wtforms import BooleanField, PasswordField, StringField, SubmitField
 from wtforms.validators import DataRequired, Email, EqualTo, ValidationError
--- a/backend/src/auth/routes.py
+++ b/backend/src/auth/routes.py
@ -1,9 +1,9 @@
-from app import db
+from src import db
-from app.auth import bp
+from src.auth import bp
-from app.auth.email import send_password_reset_email
+from src.auth.email import send_password_reset_email
-from app.auth.forms import LoginForm, RegistrationForm, ResetPasswordForm, ResetPasswordRequestForm
+from src.auth.forms import LoginForm, RegistrationForm, ResetPasswordForm, ResetPasswordRequestForm
-from app.models import User
+from src.models.user import User
-from app.utils.routes_utils import render_custom_template as render_template
+from src.utils.routes_utils import render_custom_template as render_template
 from flask import flash, redirect, request, url_for
 from flask_login import current_user, login_user, logout_user
 from werkzeug.urls import url_parse
--- a/backend/src/errors/init.py
+++ b/backend/src/errors/init.py
@ -0,0 +1,5 @@
 from flask import Blueprint
 bp = Blueprint('error', __name__, url_prefix='/error')
 from src.errors import handlers
--- a/backend/src/errors/handlers.py
+++ b/backend/src/errors/handlers.py
@ -1,5 +1,5 @@
-from app import db
+from src import db
-from app.errors import bp
+from src.errors import bp
 from flask import render_template
@bp.app_errorhandler(403)
--- a/backend/src/establishment/init.py
+++ b/backend/src/establishment/init.py
@ -0,0 +1,11 @@
 from flask import Blueprint
 bp = Blueprint('establishment', __name__, url_prefix='/establishment')
 from src.establishment.new import bp as bp_new
 bp.register_blueprint(bp_new)
 from src.establishment.list import bp as bp_list
 bp.register_blueprint(bp_list)
 from src.establishment.overview import bp as bp_overview
 bp.register_blueprint(bp_overview)
 from src.establishment.candidates import bp as bp_candidates
 bp.register_blueprint(bp_candidates)
--- a/backend/src/establishment/candidates/init.py
+++ b/backend/src/establishment/candidates/init.py
@ -0,0 +1,5 @@
 from flask import Blueprint
 bp = Blueprint("candidates", __name__, url_prefix='candidates')
 from src.establishment.candidates import routes
--- a/backend/src/establishment/candidates/forms.py
+++ b/backend/src/establishment/candidates/forms.py
@ -0,0 +1,7 @@
 from flask_wtf import FlaskForm
 from wtforms import HiddenField, SubmitField
 class EvaluateCandidateForm(FlaskForm):
    candidate_id = HiddenField("X")
    accept = SubmitField("Akzeptieren", render_kw={"class": "btn btn-success mt-3"})
    deny = SubmitField("Ablehnen", render_kw={"class": "btn btn-danger mt-3"})
--- a/backend/src/establishment/candidates/routes.py
+++ b/backend/src/establishment/candidates/routes.py
@ -0,0 +1,26 @@
 from flask import abort, redirect, url_for
 from flask_login import current_user, login_required
 from src import db, LOGGER
 from src.establishment.candidates import bp
 from src.establishment.candidates.forms import EvaluateCandidateForm
 from src.models import Establishment, EstablishmentCandidate, LoginToken, User
 from src.utils.routes_utils import render_custom_template as render_template
 from src.utils.database_utils import generate_token
@bp.route("/<establishment_id>", methods=["GET", "POST"])
@login_required
 def candidates(establishment_id):
    establishment = Establishment.query.get_or_404(establishment_id)
    if(current_user == establishment.User):
        form = EvaluateCandidateForm()
        establishment_candidates = EstablishmentCandidate.query.filter_by(establishment = establishment.id).all()
        if(form.validate_on_submit()):
            if(form.accept.data):
                login_token = LoginToken(Establishment = establishment, User = User.query.get(form.candidate_id.data), token = generate_token())
                db.session.add(login_token)
            establishment_candidate = EstablishmentCandidate.query.filter_by(establishment = establishment.id, user = form.candidate_id.data).first()
            db.session.delete(establishment_candidate)
            db.session.commit()
            return redirect(url_for('.candidates', establishment_id = establishment_id))
        return render_template("establishment/candidates/candidates.html", establishment_candidates=establishment_candidates, form=form)
    abort(403)
--- a/backend/src/establishment/list/init.py
+++ b/backend/src/establishment/list/init.py
@ -0,0 +1,5 @@
 from flask import Blueprint
 bp = Blueprint("list", __name__, url_prefix='list')
 from src.establishment.list import routes
--- a/backend/src/establishment/list/forms.py
+++ b/backend/src/establishment/list/forms.py
@ -0,0 +1,7 @@
 from flask_wtf import FlaskForm
 from wtforms import HiddenField, SubmitField
 class JoinEstablishmentForm(FlaskForm):
    id = HiddenField("X")
    submit = SubmitField("Anfragen")
--- a/backend/src/establishment/list/routes.py
+++ b/backend/src/establishment/list/routes.py
@ -0,0 +1,33 @@
 # from src import db, LOGGER
 from flask import abort, current_app, redirect, request, url_for
 from flask_login import current_user
 from src import db
 from src.models import Establishment
 from src.establishment.list import bp
 from src.establishment.list.forms import JoinEstablishmentForm
 from src.establishment.list.utils import backend_validation
 from src.models import EstablishmentCandidate
 from src.utils.routes_utils import render_custom_template as render_template
@bp.route('/show_establishments', methods=["GET", "POST"])
 def show_establishments():
    page = request.args.get('page', 1, type=int)
    establishments = Establishment.query.order_by(Establishment.id.asc()).paginate(
        page=page, per_page=current_app.config['POSTS_PER_PAGE'], error_out=False)
    next_url = url_for(".show_establishments",
                       page=establishments.next_num) if establishments.has_next else None
    prev_url = url_for(".show_establishments",
                       page=establishments.prev_num) if establishments.has_prev else None
    if current_user.is_authenticated:
        form = JoinEstablishmentForm()
        if (form.validate_on_submit()):
            if (backend_validation(form)):
                establishment_candidate = EstablishmentCandidate(
                    user=current_user.id, establishment=form.id.data)
                db.session.add(establishment_candidate)
                db.session.commit()
                return redirect(url_for('establishment.list.show_establishments'))
            return abort(403)
        return render_template("establishment/list/establishment_list.html", establishments=establishments.items, form=form, next_url=next_url, prev_url=prev_url)
    return render_template("establishment/list/establishment_list.html", establishments=establishments.items, next_url=next_url, prev_url=prev_url)
--- a/backend/src/establishment/list/utils.py
+++ b/backend/src/establishment/list/utils.py
@ -0,0 +1,7 @@
 from flask_login import current_user
 from src.models import Establishment
 def backend_validation(join_establishment_form):
    establishment = Establishment.query.get(join_establishment_form.id.data)
    return not (establishment.LoginToken.filter_by(user=current_user.id).first() or current_user.EstablishmentCandidate.filter_by(establishment=join_establishment_form.id.data).first())
--- a/backend/src/establishment/new/init.py
+++ b/backend/src/establishment/new/init.py
@ -0,0 +1,5 @@
 from flask import Blueprint
 bp = Blueprint("new", __name__, url_prefix='new')
 from src.establishment.new import forms, routes
--- a/backend/src/establishment/new/forms.py
+++ b/backend/src/establishment/new/forms.py
@ -0,0 +1,7 @@
 from flask_wtf import FlaskForm
 from wtforms import StringField, SubmitField
 from wtforms.validators import DataRequired
 class NewEstablishmentForm(FlaskForm):
    name = StringField("Name", validators=[DataRequired()])
    submit = SubmitField("Submit", render_kw={"class": "btn btn-primary mt-3"})
--- a/backend/src/establishment/new/routes.py
+++ b/backend/src/establishment/new/routes.py
@ -0,0 +1,24 @@
 from src import db, LOGGER
 from src.models import Establishment, LoginToken
 from src.establishment.new import bp
 from src.establishment.new.forms import NewEstablishmentForm
 from src.utils import database_utils
 from src.utils.routes_utils import render_custom_template as render_template
 from flask import redirect, url_for
 from flask_login import current_user, login_required
@bp.route('/create_establishment', methods=['GET', 'POST'])
@login_required
 def create_new_establishment():
    form = NewEstablishmentForm()
    if form.validate_on_submit():
        LOGGER.debug("valid form")
        establishment = Establishment(name=form.name.data, owner=current_user.id)
        db.session.add(establishment)
        db.session.commit()
        new_token = database_utils.generate_token()
        login_token = LoginToken(user=current_user.id, establishment=establishment.id, token=new_token)
        db.session.add(login_token)
        db.session.commit()
        return redirect(url_for('main.index'))
    return render_template('establishment/new/new_establishment.html', form=form)
--- a/backend/src/establishment/overview/init.py
+++ b/backend/src/establishment/overview/init.py
@ -0,0 +1,5 @@
 from flask import Blueprint
 bp = Blueprint('overview', __name__, url_prefix='/overview')
 from src.establishment.overview import routes
--- a/backend/src/establishment/overview/forms.py
+++ b/backend/src/establishment/overview/forms.py
@ -0,0 +1,11 @@
 from flask_wtf import FlaskForm
 from wtforms import StringField, SubmitField
 from wtforms.validators import DataRequired
 class NewCategoryForm(FlaskForm):
    name = StringField("Name", validators=[DataRequired()])
    submit = SubmitField("Submit", render_kw={"class": "btn btn-primary mt-3"})
 class NewBrandForm(FlaskForm):
    name = StringField("Name", validators=[DataRequired()])
    submit = SubmitField("Submit", render_kw={"class": "btn btn-primary mt-3"})
--- a/backend/src/establishment/overview/routes.py
+++ b/backend/src/establishment/overview/routes.py
@ -0,0 +1,36 @@
 from flask import abort,  request
 from flask.json import jsonify
 from flask_login import current_user, login_required
 from src import LOGGER
 from src.establishment.overview import bp
 from src.models import Establishment
 from src.utils import view_utils, database_utils
 from src.utils.routes_utils import render_custom_template as render_template
@bp.route('/<establishment_id>', methods=['GET'])
@login_required
 def get_report_from_user(establishment_id):
    establishment = Establishment.query.filter_by(id=int(establishment_id)).first_or_404()
    if current_user.is_anonymous:
        abort(403)
    if 'month' in request.args:
        try:
            month = int(request.args['month'])
        except Exception as e:
            LOGGER.exception("")
            abort(400)
        else:
            if (month > 12 or month < 1):
                abort(400)
    LOGGER.info("Getting results.")
    results = database_utils.get_report(**request.args, **{"establishment": establishment_id})
    LOGGER.debug(f"Results received.")
    # LOGGER.debug(str(results))
    if results:
        result_list = view_utils.group_results(results)
    else:
        result_list = []
    if request.content_type == "application/json":
        return jsonify(result_list)
    else:
        return render_template("establishment/overview/overview.html", results=result_list, establishment=Establishment.query.get(int(establishment_id)))
--- a/backend/src/item/init.py
+++ b/backend/src/item/init.py
@ -0,0 +1,5 @@
 from flask import Blueprint
 bp = Blueprint('item', __name__, url_prefix='/item')
 from src.item.new import bp as bp_new_item
 bp.register_blueprint(bp_new_item)
--- a/backend/src/item/new/init.py
+++ b/backend/src/item/new/init.py
@ -0,0 +1,5 @@
 from flask import Blueprint
 bp = Blueprint('new', __name__, url_prefix='/new')
 from src.item.new import forms, routes
--- a/backend/src/item/new/forms.py
+++ b/backend/src/item/new/forms.py
@ -1,17 +1,18 @@
-from app.models import Brand, Category
+from src.models.brand import Brand
 from src.models.category import Category
 from flask_wtf import FlaskForm
 from wtforms import DateField, FloatField, IntegerField, SelectField, SelectMultipleField, StringField, SubmitField
 from wtforms.validators import DataRequired, Optional
 class NewItemForm(FlaskForm):
-    id = IntegerField("Product EAN", validators=[DataRequired()])
+    id = IntegerField("Product EAN", validators=[DataRequired()], render_kw={"class": "form-control"})
-    name = StringField("Name", validators=[DataRequired()])
+    name = StringField("Name", validators=[DataRequired()], render_kw={"class": "form-control"})
-    description = StringField("Description", validators=[DataRequired()])
+    description = StringField("Description", validators=[DataRequired()], render_kw={"class": "form-control"})
-    date = DateField("Insert Date", validators=[DataRequired()])
+    date = DateField("Insert Date", validators=[DataRequired()], render_kw={"class": "form-control"})
-    price_change = FloatField("Price", validators=[DataRequired()])
+    price_change = FloatField("Price", validators=[DataRequired()], render_kw={"class": "form-control"})
-    amount_change = IntegerField("Amount", validators=[Optional()])
+    amount_change = IntegerField("Amount", validators=[Optional()], render_kw={"class": "form-control"})
-    category = SelectMultipleField("Categories", choices=[], validators=[Optional()])
+    category = SelectMultipleField("Categories", choices=[], validators=[Optional()], render_kw={"class": "form-control"})
-    brand = SelectField("Brand", choices=[], validators=[DataRequired()])
+    brand = SelectField("Brand", choices=[], validators=[DataRequired()], render_kw={"class": "form-control"})
    submit = SubmitField("Submit", render_kw={"class": "btn btn-primary mt-3"})
    @classmethod
@ -20,18 +21,3 @@ class NewItemForm(FlaskForm):
        form.category.choices = [(c.id, c.name) for c in Category.query.order_by("name").all()]
        form.brand.choices = [(b.id, b.name) for b in Brand.query.order_by("name").all()]
        return form
 class NewCategoryForm(FlaskForm):
    name = StringField("Name", validators=[DataRequired()])
    submit = SubmitField("Submit", render_kw={"class": "btn btn-primary mt-3"})
 class NewBrandForm(FlaskForm):
    name = StringField("Name", validators=[DataRequired()])
    submit = SubmitField("Submit", render_kw={"class": "btn btn-primary mt-3"})
 class NewEstablishmentForm(FlaskForm):
    establishment_name = StringField("Name", validators=[DataRequired()])
    submit = SubmitField("Submit", render_kw={"class": "btn btn-primary mt-3"})
 class JoinEstablishmentForm(FlaskForm):
    submit = SubmitField("Submit", render_kw={"class": "btn btn-primary mt-3"})
--- a/backend/src/item/new/routes.py
+++ b/backend/src/item/new/routes.py
@ -0,0 +1,38 @@
 from datetime import date
 from flask import abort, redirect, url_for
 from flask_login import current_user, login_required
 from src import db, LOGGER
 from src.models import AmountChange, Brand, Item, PriceChange
 from src.item.new import bp
 from src.item.new.forms import NewItemForm
 from src.utils.routes_utils import render_custom_template as render_template
@bp.route('/new_item', methods=['GET', 'POST'])
@login_required
 def new_item():
    if current_user.is_anonymous:
        abort(403)
    form = NewItemForm.new()
    if form.is_submitted():
        LOGGER.debug("submitted")
    if form.validate():
        LOGGER.debug("valid")
    else:
        LOGGER.debug(form.errors)
    if form.validate_on_submit():
        LOGGER.debug("valid form")
        brand = Brand.query.get(form.brand.data)
        new_item = Item(id=form.id.data, name=form.name.data,
                        brand=brand.id, description=form.description.data)
        # if form.category.data:
        #     category = Category.query.get(id = form.category.data)
        #     new_item.Category = category
        new_item.PriceChange = [PriceChange(Item=new_item, date=date(
            2021, 12, 1), price=form.price_change.data)]
        if form.amount_change.data:
            new_item.AmountChange = [AmountChange(Item=new_item, date=date(
                2021, 12, 1), amount=form.amount_change.data)]
        db.session.add(new_item)
        db.session.commit()
        return redirect(url_for('main.index'))
    return render_template('item/new/new_item.html', form=form)
--- a/backend/src/main/init.py
+++ b/backend/src/main/init.py
@ -2,4 +2,4 @@ from flask import Blueprint
 bp = Blueprint('main', __name__)
-from app.main import forms, routes
+from src.main import forms, routes
--- a/backend/src/main/forms.py
+++ b/backend/src/main/forms.py
@ -0,0 +1,11 @@
 from flask_wtf import FlaskForm
 from wtforms import StringField, SubmitField
 from wtforms.validators import DataRequired
 class NewCategoryForm(FlaskForm):
    name = StringField("Name", validators=[DataRequired()])
    submit = SubmitField("Submit", render_kw={"class": "btn btn-primary mt-3"})
 class NewBrandForm(FlaskForm):
    name = StringField("Name", validators=[DataRequired()])
    submit = SubmitField("Submit", render_kw={"class": "btn btn-primary mt-3"})
--- a/backend/src/main/routes.py
+++ b/backend/src/main/routes.py
@ -0,0 +1,7 @@
 from src.main import bp
 from src.utils.routes_utils import render_custom_template as render_template
@bp.route('/')
@bp.route('/index')
 def index():
    return render_template("base.html")
--- a/backend/src/models/init.py
+++ b/backend/src/models/init.py
@ -0,0 +1,14 @@
 from src.models.amount_change import AmountChange
 from src.models.bought import Bought
 from src.models.brand import Brand
 from src.models.category import Category
 from src.models.establishment import Establishment
 from src.models.establishment_candidate import EstablishmentCandidate
 from src.models.item_category import item_category
 from src.models.item import Item
 from src.models.login_token import LoginToken
 from src.models.payment import Payment
 from src.models.price_change import PriceChange
 from src.models.receipt_item import ReceiptItem
 from src.models.receipt import Receipt
 from src.models.user import User
--- a/backend/src/models/amount_change.py
+++ b/backend/src/models/amount_change.py
@ -0,0 +1,10 @@
 from src import db
 from datetime import date
 class AmountChange(db.Model):
    item = db.Column(db.ForeignKey('item.id'), primary_key=True, server_onupdate=db.FetchedValue())
    date = db.Column(db.Date, primary_key=True, server_default=str(date(2021, 12, 1)))
    amount = db.Column(db.SmallInteger, nullable=False, server_default=str(1))
    def __repr__(self) -> str:
        return f"<Amount_Change {self.item} ({self.date})>"
--- a/backend/src/models/bought.py
+++ b/backend/src/models/bought.py
@ -0,0 +1,11 @@
 from src import db
 class Bought(db.Model):
    token = db.Column(db.ForeignKey('login_token.token'), primary_key=True, server_onupdate=db.FetchedValue())
    item = db.Column(db.ForeignKey('item.id'), primary_key=True, server_onupdate=db.FetchedValue())
    date = db.Column(db.Date, primary_key=True)
    amount = db.Column(db.SmallInteger, nullable=False)
    registered = db.Column(db.Boolean, nullable=False, server_default=str(False))
    def __repr__(self) -> str:
        return f"<Bought Object>"
--- a/backend/src/models/brand.py
+++ b/backend/src/models/brand.py
@ -0,0 +1,10 @@
 from src import db
 class Brand(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(32), nullable=False)
    Item = db.relationship("Item", backref='Brand', lazy='dynamic')
    def __repr__(self) -> str:
        return f"<Brand {self.id} ({self.name})>"
--- a/backend/src/models/category.py
+++ b/backend/src/models/category.py
@ -0,0 +1,11 @@
 from src import db
 from src.models.item_category import item_category
 class Category(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(32), nullable=False, unique=True)
    Item = db.relationship("Item", secondary=item_category, lazy="dynamic", back_populates="Category")
    def __repr__(self) -> str:
        return f"<Category {self.id} ({self.name})>"
--- a/backend/src/models/establishment.py
+++ b/backend/src/models/establishment.py
@ -0,0 +1,14 @@
 from src import db
 class Establishment(db.Model):
    id = db.Column(db.BigInteger, primary_key=True)
    name = db.Column(db.String(64), nullable=False)
    owner = db.Column(db.ForeignKey('user.id'), nullable=False)
    LoginToken = db.relationship("LoginToken", backref='Establishment', lazy='dynamic')
    Bought = db.relationship("Bought", secondary="login_token",
        lazy='dynamic', overlaps="Establishment,LoginToken,Bought")
    EstablishmentCandidate = db.relationship("EstablishmentCandidate", backref='Establishment', lazy='dynamic')
    def __repr__(self) -> str:
        return f"<Establishment {self.id} ({self.name})>"
--- a/backend/src/models/establishment_candidate.py
+++ b/backend/src/models/establishment_candidate.py
@ -0,0 +1,8 @@
 from src import db
 class EstablishmentCandidate(db.Model):
    user = db.Column(db.ForeignKey('user.id'), primary_key=True)
    establishment = db.Column(db.ForeignKey('establishment.id'), primary_key=True)
    def __repr__(self) -> str:
        return f"<EstablishmentCandidate {self.user} ({self.establishment})>"
--- a/backend/src/models/item.py
+++ b/backend/src/models/item.py
@ -0,0 +1,17 @@
 from src import db
 from src.models.item_category import item_category
 class Item(db.Model):
    id = db.Column(db.BigInteger, primary_key=True, autoincrement=False)
    name = db.Column(db.String(64), nullable=False)
    brand = db.Column(db.ForeignKey('brand.id'), nullable=False, server_onupdate=db.FetchedValue())
    description = db.Column(db.Text, nullable=False)
    AmountChange = db.relationship("AmountChange", backref='Item', lazy='dynamic')
    Bought = db.relationship("Bought", backref='Item', lazy='dynamic')
    Category = db.relationship("Category", secondary=item_category, lazy="dynamic", back_populates="Item")
    PriceChange = db.relationship("PriceChange", backref='Item', lazy='dynamic')
    ReceiptItem = db.relationship("ReceiptItem", backref='Item', lazy='dynamic')
    def __repr__(self) -> str:
        return f"<Item {self.id} ({self.name})>"
--- a/backend/src/models/item_category.py
+++ b/backend/src/models/item_category.py
@ -0,0 +1,6 @@
 from src import db
 item_category = db.Table("item_category",
    db.Column("item", db.ForeignKey("item.id"), primary_key=True, server_onupdate=db.FetchedValue()),
    db.Column("category", db.ForeignKey("category.id"), primary_key=True, server_onupdate=db.FetchedValue())
 )
--- a/backend/src/models/login_token.py
+++ b/backend/src/models/login_token.py
@ -0,0 +1,12 @@
 from src import db
 class LoginToken(db.Model):
    user = db.Column(db.ForeignKey('user.id'), primary_key=True, server_onupdate=db.FetchedValue())
    establishment = db.Column(db.ForeignKey('establishment.id'), primary_key=True, server_onupdate=db.FetchedValue())
    token = db.Column(db.String(15), nullable=False, unique=True)
    Payment = db.relationship("Payment", backref='LoginToken', lazy='dynamic')
    Receipt = db.relationship("Receipt", backref='LoginToken', lazy='dynamic')
    def __repr__(self) -> str:
        return f"<LoginToken {self.token}>"
--- a/backend/src/models/payment.py
+++ b/backend/src/models/payment.py
@ -0,0 +1,10 @@
 from src import db
 class Payment(db.Model):
    id = db.Column(db.BigInteger, primary_key=True)
    token = db.Column(db.ForeignKey('login_token.token'), primary_key=True, server_onupdate=db.FetchedValue())
    date = db.Column(db.Date, nullable=False, server_default=db.func.now())
    amount = db.Column(db.BigInteger, nullable=False, server_default=str(0))
    def __repr__(self) -> str:
        return f"<Payment {self.id}>"
--- a/backend/src/models/price_change.py
+++ b/backend/src/models/price_change.py
@ -0,0 +1,10 @@
 from src import db
 from datetime import date
 class PriceChange(db.Model):
    item = db.Column(db.ForeignKey('item.id'), primary_key=True, server_onupdate=db.FetchedValue())
    date = db.Column(db.Date, primary_key=True, server_default=str(date(2021, 12, 1)))
    price = db.Column(db.SmallInteger, nullable=False)
    def __repr__(self) -> str:
        return f"<Price_Change {self.item} ({self.date})>"
--- a/backend/src/models/receipt.py
+++ b/backend/src/models/receipt.py
@ -0,0 +1,12 @@
 from src import db
 class Receipt(db.Model):
    id = db.Column(db.Numeric(precision=24, scale=0), primary_key=True, autoincrement=False)
    date = db.Column(db.Date, nullable=False)
    from_user = db.Column(db.ForeignKey("login_token.token"), server_onupdate=db.FetchedValue())
    registered = db.Column(db.Boolean, nullable=False, server_default=str(False))
    ReceiptItem = db.relationship("ReceiptItem", backref='Receipt', lazy='dynamic')
    def __repr__(self) -> str:
        return f"<Receipt {self.id}>"
--- a/backend/src/models/receipt_item.py
+++ b/backend/src/models/receipt_item.py
@ -0,0 +1,9 @@
 from src import db
 class ReceiptItem(db.Model):
    receipt = db.Column(db.ForeignKey("receipt.id"), primary_key=True, server_onupdate=db.FetchedValue())
    item = db.Column(db.ForeignKey("item.id"), primary_key=True, server_onupdate=db.FetchedValue())
    amount = db.Column(db.SmallInteger, nullable=False)
    def __repr__(self) -> str:
        return f"<ReceiptItem {self.receipt}: {self.item}>"
--- a/backend/src/models/user.py
+++ b/backend/src/models/user.py
@ -0,0 +1,45 @@
 import jwt
 from src import db, login
 from flask import current_app
 from flask_login import UserMixin
 from time import time
 from werkzeug.security import generate_password_hash, check_password_hash
 class User(UserMixin, db.Model):
    id = db.Column(db.BigInteger, primary_key=True)
    email = db.Column(db.String(255), nullable=False, unique=True)
    password_hash = db.Column(db.String(128), nullable=False)
    LoginToken = db.relationship("LoginToken", backref='User', lazy='dynamic')
    Bought = db.relationship("Bought", secondary="login_token",
        lazy='dynamic', overlaps="User,LoginToken")
    EstablishmentCandidate = db.relationship("EstablishmentCandidate", backref='User', lazy='dynamic')
    Establishment = db.relationship("Establishment", backref="User", lazy="dynamic")
    def set_password(self, password):
        self.password_hash = generate_password_hash(password)
    def check_password(self, password):
        return check_password_hash(self.password_hash, password)
    def get_reset_password_token(self, expires_in=600):
        return jwt.encode(
            {'reset_password': self.id, 'exp': time() + expires_in},
            current_app.config['SECRET_KEY'], algorithm='HS256')
    @staticmethod
    def verify_reset_password_token(token):
        try:
            id = jwt.decode(token, current_app.config['SECRET_KEY'],
                            algorithms=['HS256'])['reset_password']
        except:
            return
        return User.query.get(id)
    def __repr__(self) -> str:
        return f"<User {self.id} ({self.email})>"
@login.user_loader
 def load_user(id):
    return User.query.get(int(id))
--- a/backend/src/receipts/init.py
+++ b/backend/src/receipts/init.py
@ -0,0 +1,5 @@
 from flask import Blueprint
 bp = Blueprint('receipts', __name__, url_prefix='/receipts')
 from src.receipts import forms, routes
--- a/backend/src/receipts/forms.py
+++ b/backend/src/receipts/forms.py
@ -14,3 +14,11 @@ class UploadReceiptForm(FlaskForm):
 class CheckItemsForm(FlaskForm):
    items = MultiCheckboxField("Items")
    submit = SubmitField("Submit", render_kw={"class": "btn btn-primary mt-3"})
    #TODO create new() method which loads the form for a specific receipt
    @classmethod
    def new(cls, itemArray):
        """
        """
        form = cls()
        return form
--- a/backend/src/receipts/routes.py
+++ b/backend/src/receipts/routes.py
@ -1,11 +1,12 @@
-from app import db, LOGGER
+from src import db, LOGGER
-from app.receipts import bp
+from src.models.receipt import Receipt
-from app.receipts.forms import CheckItemsForm, UploadReceiptForm
+from src.models.login_token import LoginToken
-from app.models import Receipt, LoginToken
+from src.receipts import bp
-from app.utils.routes_utils import render_custom_template as render_template
+from src.receipts.forms import CheckItemsForm, UploadReceiptForm
 from src.utils.pdf_receipt_parser import PDFReceipt
 from src.utils.routes_utils import render_custom_template as render_template
 from flask import abort, request, url_for
 from flask_login import current_user, login_required
 from app.utils.pdf_receipt_parser import PDFReceipt
 PDFDir = "./"
--- a/backend/src/static/sidebars.css
+++ b/backend/src/static/sidebars.css
--- a/backend/src/templates/auth/login.html
+++ b/backend/src/templates/auth/login.html
--- a/backend/src/templates/auth/register.html
+++ b/backend/src/templates/auth/register.html
--- a/backend/src/templates/auth/reset_password.html
+++ b/backend/src/templates/auth/reset_password.html
--- a/backend/src/templates/auth/reset_password_request.html
+++ b/backend/src/templates/auth/reset_password_request.html
--- a/backend/src/templates/base.html
+++ b/backend/src/templates/base.html
@ -0,0 +1,126 @@
 {% extends "bootstrap/base.html" %}
 {% block title %}
 {% if title %}
 {{ title }}
 {% else %}
 CostHive
 {% endif %}
 {% endblock %}
 {% block metas %}
 <meta charset="utf-8">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 {% endblock %}
 {% block styles %}
 <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet"
    integrity="sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3" crossorigin="anonymous">
 <link rel="stylesheet" href={{ url_for('static', filename="sidebars.css")}}>
 {% endblock %}
 {% block navbar %}
 <main>
    <div class="flex-shrink-0 p-3 bg-black bg-opacity-10 scrollbar-primary h-100 position-fixed" style="width: 280px;">
        <a href="/"
            class="d-flex align-items-center pb-3 mb-3 link-dark text-decoration-none border-bottom border-dark">
            <svg class="bi me-2" width="30" height="24">
                <use xlink:href="#bootstrap"></use>
            </svg>
            <span class="fs-5 fw-semibold">
                {% if title %}
                {{ title }}
                {% else %}
                CostHive
                {% endif %}
            </span>
        </a>
        <ul class="list-unstyled ps-0">
            <li class="mb-1">
                <button class="btn btn-toggle align-items-center rounded collapsed" data-bs-toggle="collapse"
                    data-bs-target="#home-collapse" aria-expanded="true">
                    Home (WIP)
                </button>
                <div class="collapse show" id="home-collapse">
                    <ul class="btn-toggle-nav list-unstyled fw-normal pb-1 small">
                        <li><a href="{{ url_for('establishment.list.show_establishments') }}"
                                class="link-dark rounded">Einrichtungen</a></li>
                        <li><a href="#" class="link-dark rounded">Inventar</a></li>
                    </ul>
                </div>
            </li>
            {% if current_user.is_authenticated %}
            <li class="mb-1">
                <button class="btn btn-toggle align-items-center rounded collapsed" data-bs-toggle="collapse"
                    data-bs-target="#dashboard-collapse" aria-expanded="false">
                    Übersicht
                </button>
                <div class="collapse" id="dashboard-collapse">
                    <ul class="btn-toggle-nav list-unstyled fw-normal pb-1 small">
                        {% if current_user_establishments %}
                        {% for establishment in current_user_establishments %}
                        <li>
                            <a href="{{ url_for('establishment.overview.get_report_from_user', establishment_id=establishment.id) }}"
                                class="link-dark rounded">{{ establishment.name }}</a>
                        </li>
                        {% endfor %}
                        {% endif %}
                        <li>
                            <a href="{{ url_for('establishment.new.create_new_establishment') }}"
                                class="link-dark rounded">➕ Neu</a>
                        </li>
                    </ul>
                </div>
            </li>
            {% endif %}
            <li class="border-top border-dark my-3"></li>
            <li class="mb-1">
                <button class="btn btn-toggle align-items-center rounded collapsed" data-bs-toggle="collapse"
                    data-bs-target="#account-collapse" aria-expanded="false">
                    Account
                </button>
                <div class="collapse" id="account-collapse" style="">
                    <ul class="btn-toggle-nav list-unstyled fw-normal pb-1 small">
                        <!-- <li><a href="#" class="link-dark rounded">New...</a></li>
                                <li><a href="#" class="link-dark rounded">Settings</a></li> -->
                        {% if current_user.is_authenticated %}
                        <!-- <li><a href="#" class="link-dark rounded">Profile</a></li> -->
                        <li><a href={{ url_for('auth.web_logout') }} class="link-dark rounded">Sign out</a></li>
                        {% else %}
                        <li><a href={{ url_for('auth.web_register') }} class="link-dark rounded">Register</a></li>
                        <li><a href={{ url_for('auth.web_login') }} class="link-dark rounded">Sign in</a></li>
                        {% endif %}
                    </ul>
                </div>
            </li>
        </ul>
    </div>
    {% endblock %}
    {% block content %}
    {% with messages = get_flashed_messages() %}
    {% if messages %}
    <ul>
        {% for message in messages %}
        <li>{{ message }}</li>
        {% endfor %}
    </ul>
    {% endif %}
    {% endwith %}
    <div style="width: 280px;"></div>
    <div class="container">
        <div class="row my-3"></div>
        <div class="row-md-3">
            {% block app_content %}{% endblock %}
        </div>
        <div class="row my-3"></div>
    </div>
 </main>
 {% endblock %}
 {% block scripts %}
 <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.bundle.min.js"
    integrity="sha384-ka7Sk0Gln4gmtz2MlQnikT1wXgYsOg+OMhuP+IlRH9sENBO0LRn5q+8nbTov4+1p"
    crossorigin="anonymous"></script>
 <!-- <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script> -->
 {% endblock %}
--- a/backend/src/templates/email/reset_password.html
+++ b/backend/src/templates/email/reset_password.html
--- a/backend/src/templates/email/reset_password.txt
+++ b/backend/src/templates/email/reset_password.txt
--- a/backend/src/templates/errors/403.html
+++ b/backend/src/templates/errors/403.html
--- a/backend/src/templates/errors/404.html
+++ b/backend/src/templates/errors/404.html
--- a/backend/src/templates/errors/500.html
+++ b/backend/src/templates/errors/500.html
--- a/backend/src/templates/establishment/candidates/_candidate_evaluation.html
+++ b/backend/src/templates/establishment/candidates/_candidate_evaluation.html
@ -0,0 +1,6 @@
 <form action="" method="post">
    {{ form.csrf_token }}
    {{ form.candidate_id(value=candidate.user) }}
    {{ form.accept }}
    {{ form.deny }}
 </form>
--- a/backend/src/templates/establishment/candidates/candidates.html
+++ b/backend/src/templates/establishment/candidates/candidates.html
@ -0,0 +1,15 @@
 {% extends "base.html" %}
 {% import 'bootstrap/wtf.html' as wtf %}
 {% block app_content %}
 <table class="table">
    <tbody>
        {% for candidate in establishment_candidates %}
        <tr>
            <td>{{ candidate.User.email }}</td>
            <td>{% include "establishment/candidates/_candidate_evaluation.html" %}</td>
        </tr>
        {% endfor %}
    </tbody>
 </table>
 {% include "utils/general/_page_navigation.html" %}
 {% endblock %}
--- a/backend/src/templates/establishment/list/establishment_list.html
+++ b/backend/src/templates/establishment/list/establishment_list.html
@ -0,0 +1,27 @@
 {% extends "base.html" %}
 {% import 'bootstrap/wtf.html' as wtf %}
 {% block app_content %}
 <table class="table">
  <thead>
    <tr>
      <th scope="col">#</th>
      <th scope="col">Name</th>
      {% if current_user.is_authenticated %}
      <th scope="col">Anfrage senden</th>
      {% endif %}
    </tr>
  </thead>
  <tbody>
    {% for establishment in establishments %}
    <tr>
      <th scope="row">{{ establishment.id }}</th>
      <td>{{ establishment.name }}</td>
      {% if current_user.is_authenticated %}
      <td>{% include 'establishment/list/establishment_request.html' %}</td>
      {% endif %}
    </tr>
    {% endfor %}
  </tbody>
 </table>
 {% include "utils/general/_page_navigation.html" %}
 {% endblock %}
--- a/backend/src/templates/establishment/list/establishment_request.html
+++ b/backend/src/templates/establishment/list/establishment_request.html
@ -0,0 +1,11 @@
 <form action="" method="post">
    {{ form.csrf_token }}
    {{ form.id(value=establishment.id) }}
    {% if current_user.EstablishmentCandidate.filter_by(establishment = establishment.id).first() %}
    {{ form.submit(value="Bereits angefragt", disabled=True) }}
    {% elif establishment.LoginToken.filter_by(user = current_user.id).first() %}
    {{ form.submit(value="Bereits Mitglied", disabled=True) }}
    {% else %}
    {{ form.submit }}
    {% endif %}
 </form>
--- a/backend/src/templates/establishment/new/new_establishment.html
+++ b/backend/src/templates/establishment/new/new_establishment.html
@ -0,0 +1,6 @@
 {% extends "base.html" %}
 {% import 'bootstrap/wtf.html' as wtf %}
 {% block app_content %}
    {% include 'establishment/new/new_establishment_form.html' %}
 {% endblock %}
--- a/backend/src/templates/establishment/new/new_establishment_form.html
+++ b/backend/src/templates/establishment/new/new_establishment_form.html
@ -0,0 +1,5 @@
 <form action="" method="post">
    {{ form.hidden_tag() }}
    {{ wtf.form_field(form.name, class=form.name.render_kw["class"] or "form-control mb-3") }}
    {{ wtf.form_field(form.submit, class=form.submit.render_kw["class"] or "btn btn-primary  mt-3") }}
 </form>
--- a/backend/src/templates/establishment/overview/overview.html
+++ b/backend/src/templates/establishment/overview/overview.html
@ -0,0 +1,39 @@
 {% extends "base.html" %}
 {% block app_content %}
 {% if establishment %}
 {% if current_user.id == establishment.owner %}
 <button type="button" class="btn btn-outline-dark px-2" data-bs-toggle="button" autocomplete="off"
    onclick="window.location.href='{{ url_for('establishment.overview.get_report_from_user', establishment_id=establishment.id) }}'">
    Abrechnung
 </button>
 {% endif %}
 {% endif %}
 {% for user in results %}
 <div class="card">
    <button class="btn btn-primary" data-bs-toggle="collapse" data-bs-target="#b{{ user.id }}" aria-expanded="true">
        <div class="card-header">
            <h3>{{ user.email }}: {{ user.sum/100 }} €</h3>
        </div>
    </button>
    <div class="collapse" id="b{{ user.id }}">
        {% for item_infos in user.item_infos %}
        <div class="card-body">
            <div class="col-sm-1"></div>
            <div class="col">
                <h4>{{ item_infos.date }}</h4>
                {% for item in item_infos.item_list %}
                <div class="row">
                    <div class="col-sm-1"></div>
                    <div class="col">
                        {{ item.amount }}x {{ item.name }} je {{ item.price/100 }} €
                    </div>
                </div>
                {% endfor %}
            </div>
        </div>
        {% endfor %}
    </div>
 </div>
 {% endfor %}
 {% endblock %}
--- a/backend/src/templates/item/new/new_item.html
+++ b/backend/src/templates/item/new/new_item.html
@ -0,0 +1,6 @@
 {% extends "base.html" %}
 {% import 'bootstrap/wtf.html' as wtf %}
 {% block app_content %}
    {% include 'item/new/new_item_form.html' %}
 {% endblock %}
--- a/backend/src/templates/item/new/new_item_form.html
+++ b/backend/src/templates/item/new/new_item_form.html
@ -0,0 +1,13 @@
 {% from 'utils/form/_render_field.html' import render_field %}
 <form action="" method="post">
    {{ form.hidden_tag() }}
    {{ render_field(form.id) }}
    {{ render_field(form.name) }}
    {{ render_field(form.description) }}
    {{ render_field(form.date) }}
    {{ render_field(form.price_change) }}
    {{ render_field(form.amount_change) }}
    {{ render_field(form.category) }}
    {{ render_field(form.brand) }}
    {{ form.submit }}
 </form>
--- a/backend/src/templates/main/overview.html
+++ b/backend/src/templates/main/overview.html
@ -0,0 +1,4 @@
 {% extends "base.html" %}
 {% block app_content %}
 {% endblock %}
--- a/backend/src/templates/receipts/confirm_items.html
+++ b/backend/src/templates/receipts/confirm_items.html
--- a/backend/src/templates/receipts/upload.html
+++ b/backend/src/templates/receipts/upload.html
--- a/backend/src/templates/utils/form/_render_field.html
+++ b/backend/src/templates/utils/form/_render_field.html
@ -0,0 +1,11 @@
 {% macro render_field(field) %}
 <div class="form-group">
  {{ field.label }} {{ field(**kwargs)|safe }} {% if field.errors %}
  <ul class="errors">
    {% for error in field.errors %}
    <li>{{ error }}</li>
    {% endfor %}
  </ul>
  {% endif %}
 </div>
 {% endmacro %}
--- a/Show More
+++ b/Show More
`@ -2,4 +2,4 @@ from flask import Blueprint`

	`bp = Blueprint('main', __name__)`	`bp = Blueprint('main', __name__)`

	`from app.main import forms, routes`	`from src.main import forms, routes`