#!/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
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 = 5000
    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