import enum
import logging
import struct

from eive_tmtc.pus_tm.defs import PrintWrapper

from eive_tmtc.config.definitions import CustomServiceList
from spacepackets.ecss import PusTelecommand
from tmtccmd.config import TmtcDefinitionWrapper

from tmtccmd.tc import DefaultPusQueueHelper
from tmtccmd.pus.s8_fsfw_funccmd import create_action_cmd
from tmtccmd.tc.pus_3_fsfw_hk import make_sid, generate_one_hk_command
from tmtccmd.tc.pus_20_fsfw_param import (
    create_scalar_u8_parameter,
    create_load_param_cmd,
)
from tmtccmd.config.tmtc import OpCodeEntry, tmtc_definitions_provider
from eive_tmtc.config.object_ids import CORE_CONTROLLER_ID
from tmtccmd.util.tmtc_printer import FsfwTmTcPrinter

_LOGGER = logging.getLogger(__name__)


class ActionId(enum.IntEnum):
    LIST_DIR_INTO_FILE = 0
    ANNOUNCE_VERSION = 1
    ANNOUNCE_CURRENT_IMAGE = 2
    ANNOUNCE_BOOT_COUNTS = 3
    SWITCH_REBOOT_FILE_HANDLING = 5
    RESET_REBOOT_COUNTER = 6
    SWITCH_IMG_LOCK = 7
    SET_MAX_REBOOT_CNT = 8
    UPDATE_OBSW_FROM_SD_0 = 10
    UPDATE_OBSW_FROM_SD_1 = 11
    UPDATE_OBSW_FROM_TMP = 12
    SWITCH_TO_SD_0 = 16
    SWITCH_TO_SD_1 = 17
    SWITCH_TO_BOTH_SD_CARDS = 18
    XSC_REBOOT = 32
    FULL_REBOOT = 34
    EXECUTE_SHELL_CMD_BLOCKING = 40
    EXECUTE_SHELL_CMD_NON_BLOCKING = 41
    SYSTEMCTL_CMD_EXECUTOR = 42


class ParamId(enum.IntEnum):
    PREF_SD = 0


class SetId(enum.IntEnum):
    HK = 5


class OpCode:
    ANNOUNCE_VERSION = "announce_version"
    ANNOUNCE_CURRENT_IMAGE = "announce_current_image"
    ANNOUNCE_BOOT_COUNTS = "announce_boot_counts"
    EXECUTE_SHELL_CMD_BLOCKING = "exec_cmd_blocking"
    EXECUTE_SHELL_CMD_NON_BLOCKING = "exec_cmd_non_blocking"
    SYSTEMCTL_CMD_EXECUTOR = "systemctl_cmd"
    SET_PREF_SD = "set_pref_sd"
    REBOOT_XSC = ["reboot_xsc"]
    XSC_REBOOT_SELF = ["reboot_self"]
    XSC_REBOOT_0_0 = ["reboot_00"]
    XSC_REBOOT_0_1 = ["reboot_01"]
    XSC_REBOOT_1_0 = ["reboot_10"]
    XSC_REBOOT_1_1 = ["reboot_11"]
    REBOOT_FULL = ["reboot_regular"]
    GET_HK = ["get_hk"]
    OBSW_UPDATE_FROM_SD_0 = ["obsw_update_sd0"]
    OBSW_UPDATE_FROM_SD_1 = ["obsw_update_sd1"]
    OBSW_UPDATE_FROM_TMP = ["obsw_update_tmp"]
    SWITCH_TO_SD_0 = ["switch_to_sd_0"]
    SWITCH_TO_SD_1 = ["switch_to_sd_1"]
    SWITCH_TO_BOTH_SD_CARDS = ["switch_to_both_sd_cards"]
    ENABLE_REBOOT_FILE_HANDLING = ["rbh_off"]
    DISABLE_REBOOT_FILE_HANDLING = ["rbh_on"]
    RESET_ALL_REBOOT_COUNTERS = ["rbh_reset_a"]
    RESET_REBOOT_COUNTER_00 = ["rbh_reset_00"]
    RESET_REBOOT_COUNTER_01 = ["rbh_reset_01"]
    RESET_REBOOT_COUNTER_10 = ["rbh_reset_10"]
    RESET_REBOOT_COUNTER_11 = ["rbh_reset_11"]
    SET_MAX_REBOOT_CNT = ["rbh_max_cnt"]


class Info:
    ANNOUNCE_VERSION = "Announce version"
    ANNOUNCE_CURRENT_IMAGE = "Announce current image"
    ANNOUNCE_BOOT_COUNTS = "Announce boot counts"
    SYSTEMCTL_CMD_EXECUTOR = "Perform systemctl command"
    EXECUTE_SHELL_CMD_BLOCKING = "Execute shell command blocking"
    EXECUTE_SHELL_CMD_NON_BLOCKING = "Execute shell command non-blocking"
    SET_PREF_SD = "Set preferred SD card"
    REBOOT_XSC = "XSC reboot with prompt"
    REBOOT_FULL = "Full regular reboot"
    OBSW_UPDATE_FROM_SD_0 = "Update OBSW from SD Card 0"
    OBSW_UPDATE_FROM_SD_1 = "Update OBSW from SD Card 1"
    OBSW_UPDATE_FROM_TMP = "Update OBSW from tmp folder"
    SWITCH_TO_SD_0 = "Switch to SD card 0"
    SWITCH_TO_SD_1 = "Switch to SD card 1"
    SWITCH_TO_BOTH_SD_CARDS = "Switch to both SD cards with specified active card"


class Chip(enum.IntEnum):
    CHIP_0 = 0
    CHIP_1 = 1
    NONE = 2


class Copy(enum.IntEnum):
    COPY_0_NOM = 0
    COPY_1_GOLD = 1
    NONE = 2


class SystemctlCmd(enum.IntEnum):
    START = 0
    STOP = 1
    RESTART = 2


@tmtc_definitions_provider
def add_core_controller_definitions(defs: TmtcDefinitionWrapper):
    oce = OpCodeEntry()
    oce.add(keys=OpCode.ANNOUNCE_VERSION, info=Info.ANNOUNCE_VERSION)
    oce.add(keys=OpCode.ANNOUNCE_CURRENT_IMAGE, info=Info.ANNOUNCE_CURRENT_IMAGE)
    oce.add(keys=OpCode.ANNOUNCE_BOOT_COUNTS, info=Info.ANNOUNCE_BOOT_COUNTS)
    oce.add(keys=OpCode.REBOOT_XSC, info=Info.REBOOT_XSC)
    oce.add(keys=OpCode.REBOOT_XSC, info=Info.REBOOT_XSC)
    oce.add(keys=OpCode.REBOOT_FULL, info=Info.REBOOT_FULL)
    oce.add(keys=OpCode.XSC_REBOOT_SELF, info="Reboot Self")
    oce.add(keys=OpCode.XSC_REBOOT_0_0, info="Reboot 0 0")
    oce.add(keys=OpCode.XSC_REBOOT_0_1, info="Reboot 0 1")
    oce.add(keys=OpCode.XSC_REBOOT_1_0, info="Reboot 1 0")
    oce.add(keys=OpCode.XSC_REBOOT_1_1, info="Reboot 1 1")
    oce.add(keys=OpCode.SET_PREF_SD, info=Info.SET_PREF_SD)
    oce.add(keys=OpCode.OBSW_UPDATE_FROM_TMP, info=Info.OBSW_UPDATE_FROM_TMP)
    oce.add(keys=OpCode.OBSW_UPDATE_FROM_SD_0, info=Info.OBSW_UPDATE_FROM_SD_0)
    oce.add(keys=OpCode.OBSW_UPDATE_FROM_SD_1, info=Info.OBSW_UPDATE_FROM_SD_1)
    oce.add(keys=OpCode.SYSTEMCTL_CMD_EXECUTOR, info=Info.SYSTEMCTL_CMD_EXECUTOR)
    oce.add(keys=OpCode.EXECUTE_SHELL_CMD_BLOCKING, info=Info.EXECUTE_SHELL_CMD_BLOCKING)
    oce.add(keys=OpCode.EXECUTE_SHELL_CMD_NON_BLOCKING, info=Info.EXECUTE_SHELL_CMD_NON_BLOCKING)
    oce.add(
        keys=OpCode.GET_HK,
        info="Request housekeeping set",
    )
    oce.add(
        keys=OpCode.ENABLE_REBOOT_FILE_HANDLING,
        info="Enable reboot file handling",
    )
    oce.add(
        keys=OpCode.DISABLE_REBOOT_FILE_HANDLING,
        info="Disable reboot file handling",
    )
    oce.add(
        keys=OpCode.RESET_ALL_REBOOT_COUNTERS,
        info="Reset all reboot counters",
    )
    oce.add(
        keys=OpCode.RESET_REBOOT_COUNTER_00,
        info="Reset reboot counter 0 0",
    )
    oce.add(
        keys=OpCode.RESET_REBOOT_COUNTER_01,
        info="Reset reboot counter 0 1",
    )
    oce.add(
        keys=OpCode.RESET_REBOOT_COUNTER_10,
        info="Reset reboot counter 1 0",
    )
    oce.add(
        keys=OpCode.RESET_REBOOT_COUNTER_11,
        info="Reset reboot counter 1 1",
    )
    oce.add(keys=OpCode.OBSW_UPDATE_FROM_SD_0, info=Info.OBSW_UPDATE_FROM_SD_0)
    oce.add(keys=OpCode.OBSW_UPDATE_FROM_SD_1, info=Info.OBSW_UPDATE_FROM_SD_1)
    oce.add(keys=OpCode.OBSW_UPDATE_FROM_TMP, info=Info.OBSW_UPDATE_FROM_TMP)
    oce.add(keys=OpCode.SWITCH_TO_SD_0, info=Info.SWITCH_TO_SD_0)
    oce.add(keys=OpCode.SWITCH_TO_SD_1, info=Info.SWITCH_TO_SD_1)
    oce.add(keys=OpCode.SWITCH_TO_BOTH_SD_CARDS, info=Info.SWITCH_TO_BOTH_SD_CARDS)
    defs.add_service(CustomServiceList.CORE.value, "Core Controller", oce)


def pack_core_commands(q: DefaultPusQueueHelper, op_code: str):
    if op_code == OpCode.ANNOUNCE_VERSION:
        q.add_log_cmd(f"{Info.ANNOUNCE_VERSION}")
        q.add_pus_tc(create_action_cmd(CORE_CONTROLLER_ID, ActionId.ANNOUNCE_VERSION))
    elif op_code == OpCode.ANNOUNCE_CURRENT_IMAGE:
        q.add_log_cmd(f"{Info.ANNOUNCE_CURRENT_IMAGE}")
        q.add_pus_tc(
            create_action_cmd(CORE_CONTROLLER_ID, ActionId.ANNOUNCE_CURRENT_IMAGE)
        )
    elif op_code == OpCode.ANNOUNCE_BOOT_COUNTS:
        q.add_log_cmd(f"{Info.ANNOUNCE_BOOT_COUNTS}")
        q.add_pus_tc(
            create_action_cmd(CORE_CONTROLLER_ID, ActionId.ANNOUNCE_BOOT_COUNTS)
        )
    elif op_code in OpCode.REBOOT_XSC:
        reboot_self, chip_select, copy_select = determine_reboot_params()
        add_xsc_reboot_cmd(
            q=q,
            reboot_self=reboot_self,
            chip=chip_select,
            copy=copy_select,
        )
    elif op_code in OpCode.REBOOT_FULL:
        q.add_log_cmd(f"Core Command: {Info.REBOOT_FULL}")
        q.add_pus_tc(
            create_action_cmd(
                object_id=CORE_CONTROLLER_ID, action_id=ActionId.FULL_REBOOT
            )
        )
    elif op_code in OpCode.XSC_REBOOT_SELF:
        add_xsc_reboot_cmd(q=q, reboot_self=True)
    elif op_code == OpCode.SYSTEMCTL_CMD_EXECUTOR:
        print("systemctl command types: ")
        for entry in SystemctlCmd:
            print(f"{entry}: {entry.name}")
        systemctl_cmd = SystemctlCmd(int(input("Specify systemctl command type by key: ")))
        unit_name = input("Specify unit name: ")
        cmd_data = bytearray([systemctl_cmd])
        cmd_data.extend(unit_name.encode())
        q.add_pus_tc(create_action_cmd(
            object_id=CORE_CONTROLLER_ID,
            action_id=ActionId.SYSTEMCTL_CMD_EXECUTOR,
            user_data=cmd_data
        ))
    elif op_code == OpCode.EXECUTE_SHELL_CMD_BLOCKING:
        custom_cmd = input("Please specify command to execute: ")
        q.add_pus_tc(create_action_cmd(
            object_id=CORE_CONTROLLER_ID,
            action_id=ActionId.EXECUTE_SHELL_CMD_BLOCKING,
            user_data=custom_cmd.encode()
        ))
    elif op_code == OpCode.EXECUTE_SHELL_CMD_NON_BLOCKING:
        custom_cmd = input("Please specify command to execute: ")
        q.add_pus_tc(create_action_cmd(
            object_id=CORE_CONTROLLER_ID,
            action_id=ActionId.EXECUTE_SHELL_CMD_NON_BLOCKING,
            user_data=custom_cmd.encode()
        ))
    elif op_code in OpCode.XSC_REBOOT_0_0:
        add_xsc_reboot_cmd(
            q=q, reboot_self=False, chip=Chip.CHIP_0, copy=Copy.COPY_0_NOM
        )
    elif op_code in OpCode.XSC_REBOOT_0_1:
        add_xsc_reboot_cmd(
            q=q,
            reboot_self=False,
            chip=Chip.CHIP_0,
            copy=Copy.COPY_1_GOLD,
        )
    elif op_code in OpCode.XSC_REBOOT_1_0:
        add_xsc_reboot_cmd(
            q=q, reboot_self=False, chip=Chip.CHIP_1, copy=Copy.COPY_0_NOM
        )
    elif op_code in OpCode.XSC_REBOOT_1_1:
        add_xsc_reboot_cmd(
            q=q,
            reboot_self=False,
            chip=Chip.CHIP_1,
            copy=Copy.COPY_1_GOLD,
        )
    elif op_code in OpCode.DISABLE_REBOOT_FILE_HANDLING:
        q.add_log_cmd("Disabling reboot file handling")
        user_data = bytearray([0])
        q.add_pus_tc(
            create_action_cmd(
                object_id=CORE_CONTROLLER_ID,
                action_id=ActionId.SWITCH_REBOOT_FILE_HANDLING,
                user_data=user_data,
            )
        )
    elif op_code in OpCode.ENABLE_REBOOT_FILE_HANDLING:
        q.add_log_cmd("Enabling reboot file handling")
        user_data = bytearray([1])
        q.add_pus_tc(
            create_action_cmd(
                object_id=CORE_CONTROLLER_ID,
                action_id=ActionId.SWITCH_REBOOT_FILE_HANDLING,
                user_data=user_data,
            )
        )
    elif op_code in OpCode.RESET_ALL_REBOOT_COUNTERS:
        q.add_log_cmd("Resetting all reboot counters")
        q.add_pus_tc(
            create_action_cmd(
                object_id=CORE_CONTROLLER_ID,
                action_id=ActionId.RESET_REBOOT_COUNTER,
            )
        )
    elif op_code in OpCode.RESET_REBOOT_COUNTER_00:
        reset_specific_boot_counter(q, 0, 0)
    elif op_code in OpCode.RESET_REBOOT_COUNTER_01:
        reset_specific_boot_counter(q, 0, 1)
    elif op_code in OpCode.RESET_REBOOT_COUNTER_10:
        reset_specific_boot_counter(q, 1, 0)
    elif op_code in OpCode.RESET_REBOOT_COUNTER_11:
        reset_specific_boot_counter(q, 1, 1)
    elif op_code in OpCode.OBSW_UPDATE_FROM_SD_0:
        q.add_log_cmd(Info.OBSW_UPDATE_FROM_SD_0)
        q.add_pus_tc(pack_obsw_update_cmd(ActionId.UPDATE_OBSW_FROM_SD_0))
    elif op_code in OpCode.OBSW_UPDATE_FROM_SD_1:
        q.add_log_cmd(Info.OBSW_UPDATE_FROM_SD_1)
        q.add_pus_tc(pack_obsw_update_cmd(ActionId.UPDATE_OBSW_FROM_SD_1))
    elif op_code in OpCode.OBSW_UPDATE_FROM_TMP:
        q.add_log_cmd(Info.OBSW_UPDATE_FROM_TMP)
        q.add_pus_tc(pack_obsw_update_cmd(ActionId.UPDATE_OBSW_FROM_TMP))
    elif op_code in OpCode.SWITCH_TO_SD_0:
        q.add_log_cmd(Info.SWITCH_TO_SD_0)
        q.add_pus_tc(
            create_action_cmd(
                object_id=CORE_CONTROLLER_ID, action_id=ActionId.SWITCH_TO_SD_0
            )
        )
    elif op_code in OpCode.SWITCH_TO_SD_1:
        q.add_log_cmd(Info.SWITCH_TO_SD_1)
        q.add_pus_tc(
            create_action_cmd(
                object_id=CORE_CONTROLLER_ID, action_id=ActionId.SWITCH_TO_SD_1
            )
        )
    elif op_code in OpCode.SWITCH_TO_BOTH_SD_CARDS:
        while True:
            active_sd_card = int(input("Please specify active SD card [0/1]: "))
            if active_sd_card not in [0, 1]:
                _LOGGER.warning("Invalid SD card specified. Try again")
            break
        q.add_log_cmd(Info.SWITCH_TO_BOTH_SD_CARDS)
        q.add_pus_tc(
            create_action_cmd(
                object_id=CORE_CONTROLLER_ID,
                action_id=ActionId.SWITCH_TO_BOTH_SD_CARDS,
                user_data=bytes([active_sd_card]),
            )
        )
    elif op_code in OpCode.GET_HK:
        q.add_log_cmd("Requesting housekeeping set")
        sid = make_sid(object_id=CORE_CONTROLLER_ID, set_id=SetId.HK)
        q.add_pus_tc(generate_one_hk_command(sid))
    elif op_code in OpCode.SET_PREF_SD:
        q.add_log_cmd("Set preferred SD card")
        pref_sd = int(
            input("Specify which SD card to set as the preferred one (0/1): ")
        )
        if pref_sd not in [0, 1]:
            raise ValueError("Only 0 or 1 allowed for preferred SD card")
        q.add_pus_tc(
            create_load_param_cmd(
                create_scalar_u8_parameter(
                    object_id=CORE_CONTROLLER_ID,
                    domain_id=0,
                    unique_id=ParamId.PREF_SD,
                    parameter=pref_sd,
                ).pack()
            )
        )
    else:
        _LOGGER.warning(
            f"Unknown operation code {op_code} for core controller commands"
        )


def reset_specific_boot_counter(q: DefaultPusQueueHelper, chip: int, copy: int):
    q.add_log_cmd(f"Resetting boot counter {chip} {copy}")
    q.add_pus_tc(
        create_action_cmd(
            object_id=CORE_CONTROLLER_ID,
            action_id=ActionId.RESET_REBOOT_COUNTER,
            user_data=bytes([chip, copy]),
        )
    )


def create_full_reboot_cmds() -> PusTelecommand:
    return create_action_cmd(
        object_id=CORE_CONTROLLER_ID, action_id=ActionId.FULL_REBOOT
    )


def determine_reboot_params() -> (bool, Chip, Copy):
    chip_select = -1
    copy_select = -1
    reboot_self = input("Reboot self? [y/n]: ")
    if reboot_self in ["y", "yes", "1"]:
        _LOGGER.info("Rebooting currently running image")
        return True, chip_select, copy_select
    _LOGGER.info("Rebooting image specified by chip and copy")
    return False, determine_chip_and_copy()


def determine_chip_and_copy() -> (int, int):
    while True:
        chip_select = input("Chip select [0/1]: ")
        if chip_select in ["0", "1"]:
            if chip_select == "0":
                chip_select = Chip.CHIP_0
            else:
                chip_select = Chip.CHIP_1
            break
        else:
            _LOGGER.warning("Invalid chip select value. Try again")
    while True:
        copy_select = input("Copy select [0/1]: ")
        if copy_select in ["0", "1"]:
            if copy_select == "0":
                copy_select = Copy.COPY_0_NOM
            else:
                copy_select = Copy.COPY_1_GOLD
            break
        else:
            _LOGGER.warning("Invalid copy select value. Try again")
    return chip_select, copy_select


def pack_obsw_update_cmd(action_id: int) -> PusTelecommand:
    chip, copy = determine_chip_and_copy()
    user_data = bytearray([chip, copy])
    custom_file_name = input("Use custom filename [y/n] ?: ")
    if custom_file_name.lower() in ["y", "yes", "1"]:
        custom_file_name = input("Specify custom filename: ")
        user_data.extend(custom_file_name.encode())
    return create_action_cmd(
        object_id=CORE_CONTROLLER_ID, action_id=action_id, user_data=user_data
    )


def add_xsc_reboot_cmd(
    q: DefaultPusQueueHelper,
    reboot_self: bool,
    chip: Chip = Chip.NONE,
    copy: Copy = Copy.NONE,
):
    if reboot_self:
        q.add_log_cmd("Packing reboot command for current image")
    else:
        q.add_log_cmd(f"Packing reboot command for chip {chip} and copy {copy}")
    q.add_pus_tc(create_xsc_reboot_cmds(reboot_self, chip, copy))


def create_xsc_reboot_cmds(
    reboot_self: bool,
    chip: Chip = Chip.NONE,
    copy: Copy = Copy.NONE,
) -> PusTelecommand:
    tc_data = bytearray()
    if reboot_self:
        tc_data.append(True)
    else:
        tc_data.append(False)
        tc_data.append(chip)
        tc_data.append(copy)
    return create_action_cmd(
        object_id=CORE_CONTROLLER_ID, action_id=ActionId.XSC_REBOOT, user_data=tc_data
    )


def handle_core_hk_data(printer: FsfwTmTcPrinter, set_id: int, hk_data: bytes):
    if set_id == SetId.HK:
        pw = PrintWrapper(printer)
        fmt_str = "!fff"
        inc_len = struct.calcsize(fmt_str)
        (temperature, ps_voltage, pl_voltage) = struct.unpack(
            fmt_str, hk_data[0 : 0 + inc_len]
        )
        printout = (
            f"Chip Temperature [°C] {temperature} | PS Voltage [mV] {ps_voltage} | "
            f"PL Voltage [mV] {pl_voltage}"
        )
        pw.dlog(printout)
        printer.print_validity_buffer(validity_buffer=hk_data[inc_len:], num_vars=3)