Removed old code, added new files in src/ using classes for each moving part.

src/main.py

@@ -0,0 +1,51 @@
+# Welcome to the LittlePrynter's source code.
+# This program expose a web interface, with user authentification, that makes it possible to print messages from the web.
+# It also exposes a API, making it possible to print and interface with much of the printer's abilities.
+
+# We first define the connection to the printer itself,
+# Then we build the API around Flask,
+# Then we build the web interface, using the simple Jinja2 templating.
+
+# Following are the librairies we import,
+from flask import Flask # Used for the web framework
+from printer import Printer
+
+# We define the app module used by Flask
+app = Flask(__name__)
+app.secret_key = b'\x98>3nM[D\xa4\xd4\xd0K\xab?oM.`\x98'
+# TODO: Get this secret key from a config file
+
+
+# Printer connection
+# Uses the class defined in the printer.py file
+
+# Define the USB connections here.
+# TODO: move this to a config file
+vendor_id = 0x04b8
+device_id = 0x0e28
+
+
+printer = Printer(app)
+
+if not printer.init_printer(vendor_id, device_id):
+    app.logger.error('Could not init printer, aborting.')
+    exit(-1)
+
+# API routes
+# The api has the following methods
+# api/print/{sms,img,letter,qr,barcode}
+# api/auth/{login,logout}
+# api/status/{paper,ping,stats}
+
+# If you just call the api route, you get a help back.
+@app.route('/api')
+def api_help():
+    return "Welcome to the API's help page"
+
+@app.route('/api/print')
+def index():
+    return "Printing..."
+
+@app.route('/api/print/sms')
+def api_print_sms():
+    return "Printing short message."