#!/usr/bin/python3
# -*- coding: utf-8 -*-
# -*- mode: Python -*-

'''

Tracer v0.8.2

Etherdream DACs handler on network via Redis

LICENCE : CC
Sam Neurohack, pclf

One tracer process is launched per requested laser by LJ. Lasers parameters in LJ.conf.
Live I/O based on redis keys : inputs (Pointlists to draw,...) and outputs (DAC state, errors,..).
Keys are mostly read and set at each main loop.

* Redis keys reference *

- Drawing things :

/pl/Scene/lasernumber  [(x,y,color),(x1,y1,color),...]   The live list of drawn pygame points. Tracer continously ask redis for key /clientkey+lasernumber
/resampler/lasernumber [(1.0,8), (0.25,3),(0.75,3),(1.0,10)] : a string for resampling rules.
                            the first tuple (1.0,8) is for short line < 4000 in etherdream space
                            (0.25,3),(0.75,3),(1.0,10) for long line > 4000
                            i.e (0.25,3) means go at 25% position on the line, send 3 times this position to etherdream
/clientkey              "/pl/SceneNumber/"              What Scene to retrieve from redis
/EDH/lasernumber

- Tracer control :

/order                  0-8                     Set redis key with new value then issue the order number

                        0 : Draw Normal point list
                        1 : Get the new EDH          = reread redis key /EDH/lasernumber
                        2 : Draw BLACK point list
                        3 : Draw GRID point list
                        4 : Resampler Change (longs and shorts lsteps)
                        5 : Client Key Change        = reread redis key /clientkey
                        6 : Max Intensity Change     = reread redis key /intensity
                        7 : kpps change              = reread redis key /kpps
                        8 : color balance change     = reread redis keys /red /green /blue


- Managing Etherdream DACs :

Discrete drawing values

/kpps                   0-                DAC output speed to laser, then order 7. Depends of actual angle
/intensity              0-255             Laser output power, then order 6 (for alignement,...)
/red                    0-100             % of full red, then order 8
/green                  0-100             % of full green, then order 8
/blue                   0-100             % of full blue, then order 8

DAC status report

/lstt/lasernumber       etherdream last_status.playback_state  (0: idle   1: prepare   2: playing)
/cap/lasernumber        number of empty points sent to fill etherdream buffer (up to 1799)
/lack/lasernumber       "a": ACK   "F": Full  "I": invalid. 64 or 35 for no connection.


Geometric corrections

Doctodo


'''
import socket
import time
import struct
# from gstt import debug
from libs3 import gstt, log
import math
from itertools import cycle
# from globalVars import *
import pdb
import ast
import redis
from .tracer_etherdream import TracerEtherdream
from .tracer_helios import TracerHelios

from libs3 import homographyp
import numpy as np
import binascii

r = redis.StrictRedis(host=gstt.LjayServerIP, port=6379, db=0)


def DAC(mylaser, point_list_number, dac_family="etherdream"):
    print(f"# Starting DAC #{mylaser} PL#:{point_list_number} Family:'{dac_family}'")
    if dac_family == "etherdream":
        return TracerEtherdream(mylaser, point_list_number, redis=r, port=7765)
    if dac_family == "helios":
        return TracerHelios(mylaser, point_list_number, redis=r)