#!/usr/bin/python3

import configparser
import lib.config
import lib.app_control

# we need to initially load the configuration file.
# This is loaded via a local symlink
myCar_config = configparser.ConfigParser()
myCar_config.read('data/etc/myCar.conf')

# fill in config values with defaults
myCar_config = lib.config.myCar_read_config_defaults(myCar_config)


import atexit
atexit.register(lib.app_control.myCar_exit, myCar_config)



from flask import Flask
from flask import url_for
from flask import render_template
from flask import request
from flask import redirect
app = Flask(__name__)


@app.route('/')
def myCar_root():
    return render_template('index.html')

@app.route('/bluetooth/controller')
def myCar_bluetooth_controller():
    # this method will return available bluetooth devices as a list for the web template output
    import bluew
    #return len(bluew.controllers())
    return render_template('bluetooth/controller.html', bt_ctrl=bluew.controllers())

@app.route('/bluetooth/devices')
def myCar_bluetooth_devices():
    # this method will return available bluetooth devices as a list for the web template output
    import bluew
    #return len(bluew.controllers())
    bt_ctrl_powered = False

    for dev in bluew.controllers():
        if dev.Powered == True:
            bt_ctrl_powered = True
    
    if bt_ctrl_powered == False:
        return render_template('bluetooth/controller.html', bt_ctrl=bluew.controllers(), bt_error="All Bluetooth Adapters are powered off")
    else:
        return render_template('bluetooth/devices.html', bt_dev=bluew.devices())

@app.route('/bluetooth/connect', methods=['POST'])
def myCar_bluetooth_connect():
    # this method will connect to a bt device in the following order:
    #   - pair
    #   - trust
    #   - connect
    #try:
    #    request
    #except NameError:
    #    request = None

    try:
        if request is not None:
            
            import bluew

            #try:
            bt_dst_mac = request.form['bt_dst_mac']
            # pair
            bluew.pair(bt_dst_mac)

            # trust
            bluew.trust(bt_dst_mac)

            # connect
            bluew.connect(bt_dst_mac)

            retstr = 'connected to '.join(bt_dst_mac)

        else:
            ret = 'Mac Address not provided'
    except NameError:
        ret = render_template('bluetooth/devices.html', bt_dev=bluew.devices(),bt_error="No MAC provided to connect to")
    except bluew.errors.DeviceNotAvailable:
        ret = render_template('bluetooth/devices.html', bt_dev=bluew.devices(),bt_error='Bluetooth device ' + bt_dst_mac +' is not available')

    return ret

@app.route('/conf')
def myCar_conf():
    # this method reads the configuration file
    # !!! beware due to stupidity in my mind this method also holds the 
    # !!! default vaules when the config file is not present
    return render_template('conf/main.html', config=myCar_config, sections=myCar_config.sections())
    
    
@app.route('/confsave', methods=['POST'])
def myCar_conf_save():
    # this method saves the configuration settings when posted, then redirects to context /conf

    if request is not None and request.form['configsend'] == 'save':

        myCar_config['paths'] = { 'app' : request.form['[paths][app]'],
                                  'log' : request.form['[paths][log]'],
                               'record' : request.form['[paths][record]'] }
      
        myCar_config['connections'] = { 'bt_dev' : request.form['[connections][bt_dev]'],
                                        'gps_dev' : request.form['[connections][gps_dev]'],
                                        'wifi_pwd' : request.form['[connections][wifi_pwd]'] }
        lib.config.myCar_save_config(myCar_config)

    return redirect(url_for('myCar_conf'), code=302)