#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Created on Wed Dec 23 11:13:57 2020

@author: DJ2LS
Here we are saving application wide variables and stats, which have to be accessed everywhere.
"""

from dataclasses import dataclass, field
from typing import List
import subprocess
from enum import Enum
import threading


# CHANNEL_STATE = 'RECEIVING_SIGNALLING'
# disconnected, connecting, connected, disconnecting, failed
# ------- RX BUFFER

@dataclass 
class ARQ:
    bytes_per_minute: int = 0
    arq_transmission_percent: int = 0
    arq_compression_factor: int = 0
    arq_speed_level: int = 0
    arq_bits_per_second_burst: int = 0
    arq_bits_per_second: int = 0
    arq_seconds_until_finish: int = 0
    arq_seconds_until_timeout: int = 0
    rx_buffer_size: int = 16
    rx_frame_buffer: bytes = b""
    rx_burst_buffer = []
    arq_session_state: str = "disconnected" # can be: disconnected, disconnecting, connected, connecting, failed
    arq_session: bool = False
    arq_state: bool = False
    arq_state_event: threading.Event = field(default_factory=threading.Event)
    # ARQ PROTOCOL VERSION
    # v.5 - signalling frame uses datac0
    # v.6 - signalling frame uses datac13
    # v.7 - adjusting ARQ timeouts, not done yet
    arq_protocol_version: int = 7
    total_bytes: int = 0
    speed_list = []
    # set save to folder state for allowing downloading files to local file system
    arq_save_to_folder: bool = False
    bytes_per_minute_burst: int = 0
    rx_msg_buffer = []


@dataclass
class AudioParam:
    tx_audio_level: int = 0
    rx_audio_level: int = 0
    audio_input_devices = []
    audio_output_devices = []
    audio_input_device: int = -2
    audio_output_device: int = -2
    audio_record: bool = False
    audio_record_file = ''
    buffer_overflow_counter = [0, 0, 0, 0, 0]
    audio_auto_tune: bool = False
    audio_dbfs: int = 0
    fft = []
    enable_fft: bool = True


@dataclass
class Beacon:
    beacon_state: bool = False
    beacon_pause: bool = False

@dataclass 
class Channel:
    pass

@dataclass 
class Daemon:
    modemprocess: subprocess.Popen
    rigctldprocess: subprocess.Popen
    modemstarted: bool = False
    rigctldstarted: bool = False
    port: int = 3001
    serial_devices = []

@dataclass 
class HamlibParam:
    alc: int = 0
    hamlib_frequency: int = 0
    hamlib_strength: int = 0
    hamlib_radiocontrol: str = "disabled"
    hamlib_rigctld_ip: str = "127.0.0.1"
    hamlib_rigctld_port: str = "4532"
    ptt_state: bool = False
    hamlib_bandwidth: int = 0
    hamlib_status: str = "unknown/disconnected"
    hamlib_mode: str = ""
    hamlib_rf: int = 0

@dataclass
class MeshParam:
    routing_table = []
    enable_protocol = False
@dataclass
class ModemParam:
    tuning_range_fmin: float = -50.0
    tuning_range_fmax: float = 50.0
    channel_busy: bool = False
    channel_busy_slot = [False] * 5
    snr: float = 0
    is_codec2_traffic: bool = False  # true if we have codec2 signalling mode traffic on channel
    frequency_offset: float = 0
    tx_delay: int = 0  # delay in ms before sending modulation for triggering VOX for example or slow PTT radios
    enable_scatter: bool = False
    scatter = []
    channel_busy_delay = 0

@dataclass
class Station:
    mycallsign: bytes = b"AA0AA-0"
    mycallsign_crc: bytes = b"A"
    dxcallsign: bytes = b"ZZ9YY-0"
    dxcallsign_crc: bytes = b"B"
    mygrid: bytes = b""
    dxgrid: bytes = b""
    ssid_list = []  # ssid list we are responding to


@dataclass
class Statistics:
    pass

@dataclass 
class TCIParam:
    ip: str = '127.0.0.1'
    port: int = '9000'

@dataclass 
class Modem:
    version = "0.11.2-alpha.4"
    host: str = "0.0.0.0"
    port: int = 3000
    SOCKET_TIMEOUT: int = 1  # seconds
    modem_state: str = "IDLE"
    enable_explorer = False
    enable_stats = False
    transmitting: bool = False
    low_bandwidth_mode: bool = False
    enable_fsk: bool = False
    respond_to_cq: bool = True
    respond_to_call: bool = True  # respond to cq, ping, connection request, file request if not in session
    heard_stations = []
    listen: bool = True
    enable_hmac: bool = True
    transmit_morse_identifier: bool = False

    # ------------


class FRAME_TYPE(Enum):
    """Lookup for frame types"""

    BURST_01 = 10
    BURST_02 = 11
    BURST_03 = 12
    BURST_04 = 13
    # ...
    BURST_51 = 50
    BURST_ACK = 60
    FR_ACK = 61
    FR_REPEAT = 62
    FR_NACK = 63
    BURST_NACK = 64
    MESH_BROADCAST = 100
    MESH_SIGNALLING_PING = 101
    MESH_SIGNALLING_PING_ACK = 102
    CQ = 200
    QRV = 201
    PING = 210
    PING_ACK = 211
    IS_WRITING = 215
    ARQ_SESSION_OPEN = 221
    ARQ_SESSION_HB = 222
    ARQ_SESSION_CLOSE = 223
    ARQ_DC_OPEN_W = 225
    ARQ_DC_OPEN_ACK_W = 226
    ARQ_DC_OPEN_N = 227
    ARQ_DC_OPEN_ACK_N = 228
    ARQ_STOP = 249
    BEACON = 250
    FEC = 251
    FEC_WAKEUP = 252
    IDENT = 254
    TEST_FRAME = 255