import enum
from typing import Optional
import struct

from eive_tmtc.config.definitions import CustomServiceList
from eive_tmtc.pus_tm.defs import PrintWrapper
from spacepackets.ecss import PusTelecommand
from tmtccmd.config import TmtcDefinitionWrapper, OpCodeEntry
from tmtccmd.config.tmtc import tmtc_definitions_provider

from tmtccmd.tc import DefaultPusQueueHelper
from tmtccmd.util import ObjectIdU32
from tmtccmd.tc.pus_200_fsfw_mode import Mode, pack_mode_data, Subservice
import eive_tmtc.config.object_ids as oids
from eive_tmtc.config.object_ids import get_object_ids
from tmtccmd.util.tmtc_printer import FsfwTmTcPrinter

RTD_IDS = [
    oids.RTD_0_PLOC_HSPD,
    oids.RTD_1_PLOC_MISSIONBRD,
    oids.RTD_2_4K_CAM,
    oids.RTD_3_DAC_HSPD,
    oids.RTD_4_STR,
    oids.RTD_5_RW1_MX_MY,
    oids.RTD_6_DRO,
    oids.RTD_7_SCEX,
    oids.RTD_8_X8,
    oids.RTD_9_HPA,
    oids.RTD_10_PL_TX,
    oids.RTD_11_MPA,
    oids.RTD_12_ACU,
    oids.RTD_13_PLPCDU_HSPD,
    oids.RTD_14_TCS_BRD,
    oids.RTD_15_IMTQ,
]

RTD_NAMES = {
    oids.RTD_0_PLOC_HSPD: "RTD 0 PLOC Heatspreader",
    oids.RTD_1_PLOC_MISSIONBRD: "RTD 1 PLOC Missionboard",
    oids.RTD_2_4K_CAM: "RTD 2 4K Camera",
    oids.RTD_3_DAC_HSPD: "RTD 3 DAC HSPC",
    oids.RTD_4_STR: "RTD 4 Startracker",
    oids.RTD_5_RW1_MX_MY: "RTD 5 RW1 MX MY",
    oids.RTD_6_DRO: "RTD 6 DRO",
    oids.RTD_7_SCEX: "RTD 7 SCEX",
    oids.RTD_8_X8: "RTD 8 X8",
    oids.RTD_9_HPA: "RTD 9 HPA",
    oids.RTD_10_PL_TX: "RTD 10 PL TX",
    oids.RTD_11_MPA: "RTD 11 MPA",
    oids.RTD_12_ACU: "RTD 12 ACU",
    oids.RTD_13_PLPCDU_HSPD: "RTD 13 PL PCDU Heatspreader",
    oids.RTD_14_TCS_BRD: "RTD 14 TCS Board",
    oids.RTD_15_IMTQ: "RTD 15 iMTQ",
}


class CommandId:
    WRITE_CONFIG = 6


class RtdId(enum.IntEnum):
    RTD_0_PLOC_HSPC = 0
    RTD_1_PLOC_MISSIONBRD = 1
    RTD_2_4K_CAM = 2
    RTD_3_DAC_HSPD = 3
    RTD_4_STR = 4
    RTD_5_RW1_MX_MY = 5
    RTD_6_DRO = 6
    RTD_7_SCEX = 7
    RTD_8_X8 = 8
    RTD_9_HPA = 9
    RTD_10_PL_TX = 10
    RTD_11_MPA = 11
    RTD_12_ACU = 12
    RTD_13_PLPCDU_HSPD = 13
    RTD_14_TCS_BRD = 14
    RTD_15_IMTQ = 15


class SetId(enum.IntEnum):
    TEMPERATURE = 1


class OpCode:
    ON = ["0", "on"]
    OFF = ["1", "off"]
    NORMAL = ["2", "normal"]
    WRITE_CONFIG = ["3", "Write config"]


class Info:
    ON = "Switch handler on"
    OFF = "Switch handler off"
    NORMAL = "Switch handler normal"
    WRITE_CONFIG = "Write config"


@tmtc_definitions_provider
def specify_rtd_cmds(defs: TmtcDefinitionWrapper):
    oce = OpCodeEntry()
    oce.add(keys=OpCode.ON, info=Info.ON)
    oce.add(keys=OpCode.NORMAL, info=Info.NORMAL)
    oce.add(keys=OpCode.OFF, info=Info.OFF)
    oce.add(keys=OpCode.WRITE_CONFIG, info=Info.WRITE_CONFIG)
    defs.add_service(
        name=CustomServiceList.RTD.value, info="RTD commands", op_code_entry=oce
    )


def pack_rtd_commands(
    op_code: str, object_id: Optional[ObjectIdU32], q: DefaultPusQueueHelper
):
    if object_id is not None and object_id not in RTD_IDS:
        print("Specified object ID not a valid RTD ID")
        object_id = None
    if object_id is None:
        tgt_rtd_idx = prompt_rtd_idx()
        object_id_dict = get_object_ids()
        object_id = object_id_dict.get(RTD_IDS[tgt_rtd_idx])
    if op_code in OpCode.ON:
        app_data = pack_mode_data(object_id=object_id.as_bytes, mode=Mode.ON, submode=0)
        q.add_pus_tc(
            PusTelecommand(
                service=200, subservice=Subservice.TC_MODE_COMMAND, app_data=app_data
            )
        )
    if op_code in OpCode.NORMAL:
        app_data = pack_mode_data(
            object_id=object_id.as_bytes, mode=Mode.NORMAL, submode=0
        )
        q.add_pus_tc(
            PusTelecommand(
                service=200, subservice=Subservice.TC_MODE_COMMAND, app_data=app_data
            )
        )
    if op_code in OpCode.OFF:
        app_data = pack_mode_data(
            object_id=object_id.as_bytes, mode=Mode.OFF, submode=0
        )
        q.add_pus_tc(
            PusTelecommand(
                service=200, subservice=Subservice.TC_MODE_COMMAND, app_data=app_data
            )
        )
    if op_code in OpCode.WRITE_CONFIG:
        command = object_id.as_bytes + struct.pack("!I", CommandId.WRITE_CONFIG)
        q.add_pus_tc(PusTelecommand(service=8, subservice=128, app_data=command))


def handle_rtd_hk(object_id: bytes, hk_data: bytes, printer: FsfwTmTcPrinter):
    pw = PrintWrapper(printer)
    rtd_name = RTD_NAMES.get(object_id)
    if rtd_name is None:
        rtd_name = "unknown RTD device"
    pw.dlog(f"Received RTD HK for RTD {rtd_name} with object ID {object_id}")
    fmt_str = "!ffBB"
    fmt_len = struct.calcsize(fmt_str)
    (rtd_val, temp_celcius, last_err_byte, error_byte) = struct.unpack(
        fmt_str, hk_data[0 : 0 + fmt_len]
    )
    pw.dlog(f"Temperature Celcius: {temp_celcius}")
    pw.dlog(f"RTD Value: {rtd_val}")
    pw.dlog(f"Error Byte: {error_byte}")
    pw.dlog(f"Last Error Byte: {last_err_byte}")
    pw.printer.print_validity_buffer(hk_data[fmt_len:], 4)


def prompt_rtd_idx():
    while True:
        rtd_idx = input("Please specify RTD index [0-15]: ")
        if not rtd_idx.isdigit():
            print("Invalid input")
            continue
        rtd_idx = int(rtd_idx)
        if rtd_idx < 0 or rtd_idx > 15:
            print("Invalid device index")
            continue
        return rtd_idx