import enum
import json

from spacepackets.ecss import PusTelecommand

from eive_tmtc.config.definitions import CustomServiceList
from tmtccmd.config.tmtc import tmtc_definitions_provider
from tmtccmd.tc.pus_200_fsfw_mode import Mode, pack_mode_data, Subservice
from tmtccmd.tc import service_provider
from tmtccmd.tc.decorator import ServiceProviderParams
from tmtccmd.pus.s8_fsfw_funccmd import create_action_cmd
from tmtccmd.config import OpCodeEntry, TmtcDefinitionWrapper
from eive_tmtc.config.object_ids import SCEX_HANDLER_ID


USE_SCEX_CONF_FILE = True


class OpCode:
    PING = ["0", "ping"]
    ION_CMD = ["1", "ion"]
    TEMP_CMD = ["2", "temp"]
    EXP_STATUS_CMD = ["3", "expstatus"]

    ONE_CELLS_CMD = ["4", "onecell"]
    ALL_CELLS_CMD = ["5", "allcells"]
    FRAM = ["6", "fram"]

    SWITCH_ON = ["7", "on"]
    SWITCH_OFF = ["8", "off"]


class ActionId(enum.IntEnum):
    PING = 7
    ION_CMD = 4
    TEMP_CMD = 3
    EXP_STATUS_CMD = 2

    ONE_CELLS_CMD = 6
    ALL_CELLS_CMD = 5
    FRAM = 1


class Info:
    PING = "Send Ping command"
    ION_CMD = "Read Ion"
    TEMP_CMD = "Read Temperature"
    EXP_STATUS_CMD = "Read Experiment Status"

    ONE_CELLS_CMD = "One Cell"
    ALL_CELLS_CMD = "All Cells"
    FRAM = "Read FRAM"

    SWITCH_ON = "Switch Scex on"
    SWITCH_OFF = "Switch Scex off"


@tmtc_definitions_provider
def add_scex_cmds(defs: TmtcDefinitionWrapper):
    oce = OpCodeEntry()
    oce.add(keys=OpCode.PING, info=Info.PING)
    oce.add(keys=OpCode.ION_CMD, info=Info.ION_CMD)
    oce.add(keys=OpCode.TEMP_CMD, info=Info.TEMP_CMD)
    oce.add(keys=OpCode.EXP_STATUS_CMD, info=Info.EXP_STATUS_CMD)
    oce.add(keys=OpCode.ONE_CELLS_CMD, info=Info.ONE_CELLS_CMD)

    oce.add(keys=OpCode.ALL_CELLS_CMD, info=Info.ALL_CELLS_CMD)
    oce.add(keys=OpCode.FRAM, info=Info.FRAM)
    oce.add(keys=OpCode.SWITCH_ON, info=Info.SWITCH_ON)
    oce.add(keys=OpCode.SWITCH_OFF, info=Info.SWITCH_OFF)

    defs.add_service(
        name=CustomServiceList.SCEX.value, info="SCEX Device", op_code_entry=oce
    )


@service_provider(CustomServiceList.SCEX.value)
def pack_scex_cmds(p: ServiceProviderParams):
    op_code = p.op_code
    q = p.queue_helper
    if op_code in OpCode.SWITCH_ON:
        q.add_log_cmd(Info.SWITCH_ON)
        q.add_pus_tc(
            PusTelecommand(
                service=200,
                subservice=Subservice.TC_MODE_COMMAND,
                app_data=pack_mode_data(SCEX_HANDLER_ID, Mode.ON, 0),
            )
        )
    if op_code in OpCode.SWITCH_OFF:
        q.add_log_cmd(Info.SWITCH_OFF)
        q.add_pus_tc(
            PusTelecommand(
                service=200,
                subservice=Subservice.TC_MODE_COMMAND,
                app_data=pack_mode_data(SCEX_HANDLER_ID, Mode.OFF, 0),
            )
        )
    if op_code in OpCode.PING:
        q.add_log_cmd(Info.PING)
        app_data = bytes([0])
        q.add_pus_tc(create_action_cmd(SCEX_HANDLER_ID, ActionId.PING, app_data))
    if op_code in OpCode.ION_CMD:
        q.add_log_cmd(Info.ION_CMD)
        app_data = bytes([0])
        q.add_pus_tc(create_action_cmd(SCEX_HANDLER_ID, ActionId.ION_CMD, app_data))
    if op_code in OpCode.TEMP_CMD:
        q.add_log_cmd(Info.TEMP_CMD)
        app_data = bytes([0])
        q.add_pus_tc(create_action_cmd(SCEX_HANDLER_ID, ActionId.TEMP_CMD, app_data))

    if op_code in OpCode.EXP_STATUS_CMD:
        q.add_log_cmd(Info.EXP_STATUS_CMD)
        app_data = bytes([0])
        q.add_pus_tc(
            create_action_cmd(SCEX_HANDLER_ID, ActionId.EXP_STATUS_CMD, app_data)
        )

    # one cell
    if op_code in OpCode.ONE_CELLS_CMD:
        q.add_log_cmd(Info.ONE_CELLS_CMD)
        app_data = bytearray([0])

        # cell number
        cn = 0
        while True:
            cell_select = input("Which solar cell should be measured? (1-10): ")
            if not cell_select.isdigit():
                print("Invalid cell number. Try again.")
                continue
            cell_select = int(cell_select)
            if cell_select < 1 or cell_select > 10:
                print(
                    f"Invalid cell number {cell_select}, "
                    f"Please enter a valid number: "
                )
                continue
            cn = cell_select - 1
            break

        if USE_SCEX_CONF_FILE:
            with open("template/scex_conf.json") as json_file:
                json_data = json.load(json_file)
                first_dac = json_data["first_dac"]
                last_dac = json_data["last_dac"]
                res_switch1 = json_data["res_switch1"]
                res_switch2 = json_data["res_switch2"]
                dac_weight1 = json_data["dac_weight1"]
                dac_weight2 = json_data["dac_weight2"]
                dac_weight3 = json_data["dac_weight3"]

        # in app_data
        # app_data.extend(struct.pack("!H", first_dac))
        app_data.append(cell_select)
        append_16_bit_val(packet=app_data, val=first_dac[cn])
        append_16_bit_val(packet=app_data, val=last_dac[cn])
        append_16_bit_val(packet=app_data, val=res_switch1[cn])
        append_16_bit_val(packet=app_data, val=res_switch2[cn])

        app_data.append(dac_weight1[cn])
        app_data.append(dac_weight2[cn])
        app_data.append(dac_weight3[cn])

        q.add_pus_tc(
            create_action_cmd(SCEX_HANDLER_ID, ActionId.ONE_CELLS_CMD, app_data)
        )

    if op_code in OpCode.ALL_CELLS_CMD:
        q.add_log_cmd(Info.ALL_CELLS_CMD)
        app_data = bytearray([0])

        # cell number
        cn = 0
        if USE_SCEX_CONF_FILE:
            with open("template/scex_conf.json") as json_file:
                json_data = json.load(json_file)
                first_dac = json_data["first_dac"]
                last_dac = json_data["last_dac"]
                res_switch1 = json_data["res_switch1"]
                res_switch2 = json_data["res_switch2"]
                dac_weight1 = json_data["dac_weight1"]
                dac_weight2 = json_data["dac_weight2"]
                dac_weight3 = json_data["dac_weight3"]

        # in app_data
        # app_data.extend(struct.pack("!H", first_dac))
        append_16_bit_val(packet=app_data, val=first_dac[cn])
        append_16_bit_val(packet=app_data, val=last_dac[cn])
        append_16_bit_val(packet=app_data, val=res_switch1[cn])
        append_16_bit_val(packet=app_data, val=res_switch2[cn])

        app_data.append(dac_weight1[cn])
        app_data.append(dac_weight2[cn])
        app_data.append(dac_weight3[cn])

        q.add_pus_tc(
            create_action_cmd(SCEX_HANDLER_ID, ActionId.ALL_CELLS_CMD, app_data)
        )

    if op_code in OpCode.FRAM:
        q.add_log_cmd(Info.FRAM)
        app_data = bytes([0])
        q.add_pus_tc(create_action_cmd(SCEX_HANDLER_ID, ActionId.FRAM, app_data))


def append_16_bit_val(packet: bytearray, val: int):
    packet.append((val >> 8) & 0xFF)
    packet.append(val & 0xFF)