#!/usr/bin/env python
# from lib.input import * # Commandline parser

import sys

from modules.hue import hue_controller as hue  # Actual controller

cmd = "hue"


def help():
    print("--Help page--")

    print("'" + cmd + "' : Display this help page")
    print("'" + cmd + " light (index)' ... : Specify light target, from 1-" +
          str(hue.controller.countLights()))
    print("'" + cmd + " lights' ... : Specify all lights\n")

    print("--Commands--")
    print("'on'/'off' : Turn light(s) on/off")
    print("'switch' : Switch the light(s) power")
    print("'set ...'")
    print("	'preset (preset ID)' : Set the preset (from presets.py)")
    print("	'color (red) (green) (blue)' : Set the color, from 0-255")
    print("	'brightness (brightness)' : Set the brightness, from 0-255")

    print("\nExamples:\n'hue light 2 on' : Turn on light 2\n'hue lights set color 255 255 255' : Set all lights colors to white")


boolConvert = {
    "on": True,
    "off": False
}

# this is the most spaghetti-ish code I have ever written but it works


def parseCommand(cmd: list, pos: int, index=-1, displayHelp=True):
    try:
        if(cmd[pos] == "on" or cmd[pos] == "off"):
            if(index == -1):
                hue.controller.Power(boolConvert[cmd[pos]])
            else:
                hue.controller.powerLight(index, boolConvert[cmd[pos]])

            return

        elif(cmd[pos] == "switch"):
            if(index == -1):
                hue.controller.switchLights()
            else:
                hue.controller.switchLight(index)

            return

        elif(cmd[pos] == "set"):
            if(cmd[pos+1] == "preset"):
                hue.controller.setPreset(cmd[pos+2], index)
                return

            elif(cmd[pos+1] == "color"):
                if(len(cmd) > pos+4):
                    r, g, b = int(cmd[pos+2]), int(cmd[pos+3]), int(cmd[pos+4])

                    if(index == -1):
                        hue.controller.setAllLightsColor(
                            r, g, b)  # this code is bad
                    else:
                        hue.controller.setLightColor(index, r, g, b)

                    return
                else:
                    print("Error: Missing parameters")
                    help()

            elif(cmd[pos+1] == "brightness"):
                if(len(cmd) > pos+2):
                    bri = int(cmd[pos+2])

                    if(index == -1):
                        hue.controller.setBrightness(bri)
                    else:
                        hue.controller.setLightBrightness(index, bri)

                    return
        help()  # display help if function did nothing

    except (RuntimeError, TypeError, NameError, IndexError) as err:
        if(displayHelp):
            help()  # display the help page if parameters are missing (it will give out an IndexError)

        print("\n\nError: " + str(err))


def parseCommandline(cmd=sys.argv, needHelp=True):
    if(len(cmd) > 1):
        if(cmd[1] == "light"):
            parseCommand(cmd, 3, cmd[2], displayHelp=needHelp)

        elif(cmd[1] == "lights"):
            parseCommand(cmd, 2, displayHelp=needHelp)
    elif(needHelp):
        help()