Chez Betty

Chez Betty is a mini, cooperative food store where users can deposit money to their account and use it to purchase food and other items. The system is linked to the UMich ldap server so users can swipe their M-Card to login.

UMich version is an homage to UCSD's Chez Bob. Chez Betty runs here.

Chez Betty is written as a Python web app designed to run on a server with a browser based user interface. It supports cash and credit card deposits. The user interface expects a card swiper and barcode scanner to be attached to the machine. See the list at the end of this README for products we use. To test / demo the system without hardware, turn on "Demo mode" in the admin interface.

Installation

The Chez Betty application is developed using Python Pyramid. To get a development environment set up, do the following:

Clone this repository

git clone https://github.com/um-cseg/chez-betty.git

Install system dependencies:

# Ubuntu 15.10
sudo apt-get install postgresql postgresql-server-dev-9.4 libjpeg-dev
# Ubuntu 16.10
sudo apt-get install postgresql postgresql-server-dev-9.5 libjpeg-dev

Setup virtualenv with Python3:

cd chez-betty

# Python cannot decide on how it wants to do this. So
# we have multiple iterations that we have tried.
## Way back:
# virtualenv .
## Python3.3:
# python3 -m venv .
# ^ *not* pyvenv ., that installed python2 in my venv for w/e reason
## Newest (only do this with Python 3.4+):
# pyvenv-3.5 venv
## Python 3.6 changes it again!
#python3.6 -m venv
## And for 3.7
python3.7 -m venv venv

source venv/bin/activate

Install the dependencies:

# Note, this step *must* be run before setup.py. The latter will use
# easy_install to install requirements instead of pip, which will
# break some packages (e.g. stripe). The argument should be the root
# directory of the project.
pip install -e .

Setup the development environment
```
python setup.py develop
```
Update development.ini to set config information and passwords.
```
cp development.ini.example development.ini
[edit development.ini]
```
You will want to use a postgres database. Likely, your development.ini file will need to be updated to have this for the database:
```
sqlalchemy.url = postgresql://bradjc@localhost:5432/chezbetty
```
To create that database, do something like:
```
psql
> create database chezbetty;
```

Setup the database:

python chezbetty/initializedb.py development.ini

Install bower and bower-install

# Note: Distro copies of node tend to fall behind really quickly.
# You are better off using a copy of node/npm installed directly:
# http://nodejs.org/
# https://github.com/npm/npm
sudo npm install bower bower-installer -g

Get all css/js dependencies
```
bower-installer
```

Run the webserver:

pserve development.ini
# n.b. pserve will be in your path if your virtualenv is active

LDAP

TODO: add information about how to setup LDAP connection.

Bitcoin

TODO: add info about how to setup bitcoin/coinbase.

Usage

View the client interface using

http://127.0.0.1:6543

View the admin interface using

http://127.0.0.1:6543/admin
username: admin
password: chezbettyadmin

Tools

Chez Betty currently runs using:

Intel Nuc with case - Running Ubuntu.
Magnetic Strip Reader - Acts as a keyboard input.
Barcode Scanner - Also keyboard input.
Touchscreen Monitor - Acts as a mouse.