#!/usr/bin/env python3
"""Example client for the sat-rs example application"""
from __future__ import annotations
import logging
import sys
import time
from typing import Optional
from prompt_toolkit.history import History
from prompt_toolkit.history import FileHistory

from spacepackets.ccsds import PacketId, PacketType
import tmtccmd
from spacepackets.ecss import PusVerificator
from spacepackets.ccsds.time import CdsShortTimestamp

from tmtccmd import TcHandlerBase, ProcedureParamsWrapper
from tmtccmd.core.base import BackendRequest
from tmtccmd.pus import VerificationWrapper
from tmtccmd.tmtc import CcsdsTmHandler
from tmtccmd.com import ComInterface
from tmtccmd.config import (
    CmdTreeNode,
    default_json_path,
    SetupParams,
    HookBase,
    params_to_procedure_conversion,
)
from tmtccmd.config import PreArgsParsingWrapper, SetupWrapper
from tmtccmd.logging import add_colorlog_console_logger
from tmtccmd.logging.pus import (
    RegularTmtcLogWrapper,
    RawTmtcTimedLogWrapper,
    TimedLogWhen,
)
from tmtccmd.tmtc import (
    TcQueueEntryType,
    ProcedureWrapper,
    TcProcedureType,
    FeedWrapper,
    SendCbParams,
    DefaultPusQueueHelper,
    QueueWrapper,
)
from spacepackets.seqcount import FileSeqCountProvider, PusFileSeqCountProvider
from tmtccmd.util.obj_id import ObjectIdDictT

from opssat_tmtc.pus_tc import create_cmd_definition_tree, pack_pus_telecommands
from opssat_tmtc.common import EXPERIMENT_APID
from opssat_tmtc.pus_tm import PusHandler

_LOGGER = logging.getLogger()


class SatRsConfigHook(HookBase):
    def __init__(self, json_cfg_path: str):
        super().__init__(json_cfg_path)

    def get_communication_interface(self, com_if_key: str) -> Optional[ComInterface]:
        from tmtccmd.config.com import (
            create_com_interface_default,
            create_com_interface_cfg_default,
        )

        assert self.cfg_path is not None
        packet_id_list = []
        packet_id_list.append(PacketId(PacketType.TM, True, EXPERIMENT_APID))
        cfg = create_com_interface_cfg_default(
            com_if_key=com_if_key,
            json_cfg_path=self.cfg_path,
            space_packet_ids=packet_id_list,
        )
        assert cfg is not None
        return create_com_interface_default(cfg)

    def get_command_definitions(self) -> CmdTreeNode:
        """This function should return the root node of the command definition tree."""
        return create_cmd_definition_tree()

    def get_cmd_history(self) -> Optional[History]:
        """Optionlly return a history class for the past command paths which will be used
        when prompting a command path from the user in CLI mode."""
        return FileHistory(".tmtc-history.txt")

    def get_object_ids(self) -> ObjectIdDictT:
        from tmtccmd.config.objects import get_core_object_ids

        return get_core_object_ids()


class TcHandler(TcHandlerBase):
    def __init__(
        self,
        seq_count_provider: FileSeqCountProvider,
        verif_wrapper: VerificationWrapper,
    ):
        super(TcHandler, self).__init__()
        self.seq_count_provider = seq_count_provider
        self.verif_wrapper = verif_wrapper
        self.queue_helper = DefaultPusQueueHelper(
            queue_wrapper=QueueWrapper.empty(),
            tc_sched_timestamp_len=CdsShortTimestamp.TIMESTAMP_SIZE,
            seq_cnt_provider=seq_count_provider,
            pus_verificator=self.verif_wrapper.pus_verificator,
            default_pus_apid=EXPERIMENT_APID,
        )

    def send_cb(self, send_params: SendCbParams):
        entry_helper = send_params.entry
        if entry_helper.is_tc:
            if entry_helper.entry_type == TcQueueEntryType.PUS_TC:
                pus_tc_wrapper = entry_helper.to_pus_tc_entry()
                raw_tc = pus_tc_wrapper.pus_tc.pack()
                _LOGGER.info(f"Sending {pus_tc_wrapper.pus_tc}")
                send_params.com_if.send(raw_tc)
        elif entry_helper.entry_type == TcQueueEntryType.LOG:
            log_entry = entry_helper.to_log_entry()
            _LOGGER.info(log_entry.log_str)

    def queue_finished_cb(self, info: ProcedureWrapper):
        if info.proc_type == TcProcedureType.TREE_COMMANDING:
            def_proc = info.to_tree_commanding_procedure()
            _LOGGER.info(f"Queue handling finished for command {def_proc.cmd_path}")

    def feed_cb(self, info: ProcedureWrapper, wrapper: FeedWrapper):
        q = self.queue_helper
        q.queue_wrapper = wrapper.queue_wrapper
        if info.proc_type == TcProcedureType.TREE_COMMANDING:
            def_proc = info.to_tree_commanding_procedure()
            assert def_proc.cmd_path is not None
            pack_pus_telecommands(q, def_proc.cmd_path)


def main():
    add_colorlog_console_logger(_LOGGER)
    tmtccmd.init_printout(False)
    hook_obj = SatRsConfigHook(json_cfg_path=default_json_path())
    parser_wrapper = PreArgsParsingWrapper()
    parser_wrapper.create_default_parent_parser()
    parser_wrapper.create_default_parser()
    parser_wrapper.add_def_proc_args()
    params = SetupParams()
    post_args_wrapper = parser_wrapper.parse(hook_obj, params)
    proc_wrapper = ProcedureParamsWrapper()
    if post_args_wrapper.use_gui:
        post_args_wrapper.set_params_without_prompts(proc_wrapper)
    else:
        post_args_wrapper.set_params_with_prompts(proc_wrapper)
    setup_args = SetupWrapper(
        hook_obj=hook_obj, setup_params=params, proc_param_wrapper=proc_wrapper
    )
    # Create console logger helper and file loggers
    tmtc_logger = RegularTmtcLogWrapper()
    file_logger = tmtc_logger.logger
    raw_logger = RawTmtcTimedLogWrapper(when=TimedLogWhen.PER_HOUR, interval=1)
    verificator = PusVerificator()
    verification_wrapper = VerificationWrapper(verificator, _LOGGER, file_logger)
    # Create primary TM handlers and add it to the CCSDS Packet Handler
    tm_handler = PusHandler(file_logger, verification_wrapper, raw_logger)
    ccsds_handler = CcsdsTmHandler(generic_handler=tm_handler)
    # TODO: We could add the CFDP handlers for the CFDP APID at a later stage.
    # ccsds_handler.add_apid_handler(tm_handler)

    # Create TC handlers
    seq_count_provider = PusFileSeqCountProvider()
    tc_handler = TcHandler(seq_count_provider, verification_wrapper)
    tmtccmd.setup(setup_args=setup_args)
    init_proc = params_to_procedure_conversion(setup_args.proc_param_wrapper)
    tmtc_backend = tmtccmd.create_default_tmtc_backend(
        setup_wrapper=setup_args,
        tm_handler=ccsds_handler,
        tc_handler=tc_handler,
        init_procedure=init_proc,
    )
    tmtccmd.start(tmtc_backend=tmtc_backend, hook_obj=hook_obj)
    try:
        while True:
            state = tmtc_backend.periodic_op(None)
            if state.request == BackendRequest.TERMINATION_NO_ERROR:
                tmtc_backend.close_com_if()
                sys.exit(0)
            elif state.request == BackendRequest.DELAY_IDLE:
                _LOGGER.info("TMTC Client in IDLE mode")
                time.sleep(3.0)
            elif state.request == BackendRequest.DELAY_LISTENER:
                time.sleep(0.8)
            elif state.request == BackendRequest.DELAY_CUSTOM:
                if state.next_delay.total_seconds() <= 0.4:
                    time.sleep(state.next_delay.total_seconds())
                else:
                    time.sleep(0.4)
            elif state.request == BackendRequest.CALL_NEXT:
                pass
    except KeyboardInterrupt:
        tmtc_backend.close_com_if()
        sys.exit(0)


if __name__ == "__main__":
    main()