import enum
import logging
from datetime import datetime

from eive_tmtc.config.definitions import CustomServiceList
from spacepackets.ecss import PusTelecommand, PusService
from tmtccmd.config.tmtc import (
    tmtc_definitions_provider,
    TmtcDefinitionWrapper,
    OpCodeEntry,
)

from tmtccmd.tc import service_provider
from tmtccmd.tc.decorator import ServiceProviderParams


class Subservice(enum.IntEnum):
    SET_TIME = 128
    DUMP_TIME = 129


class OpCode:
    SET_CURRENT_TIME = ["set_curr_time"]
    DUMP_TIME = ["dump_time"]


class Info:
    SET_CURRENT_TIME = "Setting current time in ASCII format"
    DUMP_TIME = "Dump system time as event"


@service_provider(CustomServiceList.TIME.value)
def pack_set_current_time_ascii_command(p: ServiceProviderParams):
    q = p.queue_helper
    o = p.op_code
    if o in OpCode.SET_CURRENT_TIME:
        current_time = datetime.utcnow().isoformat() + "Z" + "\0"
        current_time_ascii = current_time.encode("ascii")
        logging.getLogger(__name__).info(
            f"Current time in ASCII format: {current_time_ascii}"
        )
        q.add_log_cmd(Info.SET_CURRENT_TIME)
        q.add_pus_tc(
            PusTelecommand(
                service=PusService.S9_TIME_MGMT,
                subservice=Subservice.SET_TIME,
                app_data=current_time_ascii,
            )
        )
    elif o in OpCode.DUMP_TIME:
        q.add_log_cmd(Info.DUMP_TIME)
        q.add_pus_tc(
            PusTelecommand(
                service=PusService.S9_TIME_MGMT, subservice=Subservice.DUMP_TIME
            )
        )


@tmtc_definitions_provider
def add_time_cmds(defs: TmtcDefinitionWrapper):
    oce = OpCodeEntry()
    oce.add(
        keys=OpCode.SET_CURRENT_TIME,
        info=Info.SET_CURRENT_TIME,
    )
    oce.add(keys=OpCode.DUMP_TIME, info=Info.DUMP_TIME)
    defs.add_service(
        name=CustomServiceList.TIME.value,
        info="Time Service",
        op_code_entry=oce,
    )