#!/usr/bin/env python3
## PYTHON VERSION MUST BE 3.7 OR HIGHER

import json, argparse, sys, os, io, asyncio, aiofiles, aioconsole
import logging, re, configparser, zipfile
import blitzutils1 as bu
from blitzutils1 import WG
from blitzutils1 import WoTinspector

logging.getLogger("asyncio").setLevel(logging.DEBUG)

FILE_CONFIG = "blitzstats.ini"
# DB_C_REPLAYS   	= 'Replays'

DEBUG = False
VERBOSE = False
SLEEP = 2
MAX_RETRIES = 3
REPLAY_N = 0
SKIPPED_N = 0
ERROR_N = 0
WIurl = "https://wotinspector.com/api/replay/upload?"
WG_appID = "81381d3f45fa4aa75b78a7198eb216ad"
wg: WG | None = None
wi: WoTinspector | None = None


async def main(argv) -> int:
    global wg, wi
    current_dir = os.getcwd()
    # set the directory for the script
    os.chdir(os.path.dirname(sys.argv[0]))

    # options defaults
    OPT_WORKERS_N = 2
    WG_ID = None
    WG_ACCOUNT = None  # format: nick@server, where server is either 'eu', 'ru', 'na', 'asia' or 'china'.
    # China is not supported since WG API stats are not available there
    WG_RATE_LIMIT = 10

    try:
        ## Read config
        if os.path.isfile(FILE_CONFIG):
            bu.debug("Reading config file: " + FILE_CONFIG)
            config = configparser.ConfigParser()
            config.read(FILE_CONFIG)

            try:
                if "WG" in config.sections():
                    configWG = config["WG"]
                    # WG account id of the uploader:
                    # # Find it here: https://developers.wargaming.net/reference/all/wotb/account/list/
                    WG_ID = configWG.getint("wg_id", WG_ID)
                    WG_ACCOUNT = configWG.get("wg_account", WG_ACCOUNT)
                    ## WG API Rules limit 10 request / sec. Higher rate of requests will return errors ==> extra delay
                    WG_RATE_LIMIT = configWG.getint("wg_rate_limit", WG_RATE_LIMIT)
            except (KeyError, configparser.NoSectionError) as err:
                bu.error(exception=err)

    except Exception as err:
        bu.error(exception=err)

    parser = argparse.ArgumentParser(
        description="Post replays(s) to WoTinspector.com and retrieve replay data as JSON"
    )
    parser.add_argument(
        "-id", dest="accountID", type=int, default=WG_ID, help="WG account_id"
    )
    parser.add_argument(
        "-a",
        "--account",
        dest="account",
        type=str,
        default=WG_ACCOUNT,
        help="Uploader's WG account name. Format: ACCOUNT_NAME@SERVER",
    )
    parser.add_argument(
        "-t",
        "--title",
        type=str,
        default=None,
        help='Title for replays. Use "NN" for continous numbering. Default is automatic naming',
    )
    parser.add_argument(
        "-p",
        "--private",
        dest="private",
        action="store_true",
        default=False,
        help="Set replays private on WoTinspector.com",
    )
    parser.add_argument(
        "--tankopedia",
        type=str,
        default="tanks.json",
        help='JSON file to read Tankopedia from. Default: "tanks.json"',
    )
    parser.add_argument(
        "--mapfile",
        type=str,
        default="maps.json",
        help='JSON file to read Blitz map names from. Default: "maps.json"',
    )
    parser.add_argument(
        "-d", "--debug", action="store_true", default=False, help="Debug mode"
    )
    parser.add_argument(
        "-v", "--verbose", action="store_true", default=False, help="Verbose mode"
    )
    parser.add_argument(
        "-s", "--silent", action="store_true", default=False, help="Silent mode"
    )
    parser.add_argument(
        "files",
        metavar="FILE1 [FILE2 ...]",
        type=str,
        nargs="+",
        help="Files to read. Use '-' for STDIN\"",
    )
    args = parser.parse_args()

    bu.set_verbose(args.verbose)
    bu.set_log_level(args.silent, args.verbose, args.debug)

    wg = WG(WG_appID, args.tankopedia, args.mapfile)
    wi = WoTinspector()

    if args.account is not None:
        args.accountID = await wg.get_account_id(args.account)
        bu.debug("WG  account_id: " + str(args.accountID))

    if args.accountID is None:
        args.accountID = 0

    try:
        queue: asyncio.Queue = asyncio.Queue()
        # rebase file arguments due to moving the working directory to the script location
        bu.verbose_std("replays.wotinspector.com rate limits replays to 6 / minute")
        args.files = bu.rebase_file_args(current_dir, args.files)

        tasks = []
        # Make replay Queue
        tasks.append(asyncio.create_task(mkReplayQ(queue, args.files, args.title)))
        # Start tasks to process the Queue
        for i in range(OPT_WORKERS_N):
            tasks.append(
                asyncio.create_task(
                    replayWorker(queue, i, args.accountID, args.private)
                )
            )
            bu.debug("Task " + str(i) + " started")

        bu.debug("Waiting for the replay scanner to finish")
        await asyncio.wait([tasks[0]])
        bu.debug("Scanner finished. Waiting for workers to finish queue")
        await queue.join()
        bu.debug("Cancelling workers")
        for task in tasks:
            task.cancel()
        bu.debug("Waiting for workers to cancel")
        await asyncio.gather(*tasks, return_exceptions=True)
        bu.verbose_std(
            str(REPLAY_N)
            + " replays: "
            + str(REPLAY_N - SKIPPED_N - ERROR_N)
            + " uploaded, "
            + str(SKIPPED_N)
            + " skipped, "
            + str(ERROR_N)
            + " errors"
        )

    except KeyboardInterrupt:
        print("Ctrl-c pressed ...")
        sys.exit(1)
    finally:
        ## Need to close the aiohttp.session since Python destructors do not support async methods...
        await wg.session.close()
        await wi.close()

    return 0


async def mkReplayQ(queue: asyncio.Queue, files: list, title: str):
    """Create queue of replays to post"""
    p_replayfile = re.compile(".*\\.wotbreplay$")
    if files[0] == "-":
        bu.debug("reading replay file list from STDIN")
        stdin, _ = await aioconsole.get_standard_streams()
        while True:
            line = (await stdin.readline()).decode("utf-8").rstrip()
            if not line:
                break
            else:
                if p_replayfile.match(line) is not None:
                    await queue.put(await mkQueueItem(line, title))
    else:
        for fn in files:
            if fn.endswith('"'):
                fn = fn[:-1]
            if os.path.isfile(fn) and (p_replayfile.match(fn) is not None):
                await queue.put(await mkQueueItem(fn, title))
                bu.debug("File added to queue: " + fn)
            elif os.path.isdir(fn):
                with os.scandir(fn) as dirEntry:
                    for entry in dirEntry:
                        try:
                            bu.debug("Found: " + entry.name)
                            if entry.is_file() and (
                                p_replayfile.match(entry.name) is not None
                            ):
                                bu.debug(entry.name)
                                await queue.put(await mkQueueItem(entry.path, title))
                                bu.debug("File added to queue: " + entry.path)
                        except Exception as err:
                            bu.error(str(err))
            else:
                bu.error("File not found: " + fn)

    bu.debug("Finished")
    return None


async def mkQueueItem(filename: str, title: str) -> list:
    """Make an item to replay queue"""
    global REPLAY_N
    REPLAY_N += 1
    return [filename, REPLAY_N, getTitle(filename, title, REPLAY_N)]


async def replayWorker(
    queue: asyncio.Queue, workerID: int, account_id: int, priv=False
):
    """Async Worker to process the replay queue"""
    global SKIPPED_N
    global ERROR_N
    global wi

    assert wi is not None, "wi cannot be None"

    while True:
        item = await queue.get()
        filename = item[0]
        N = item[1]
        title = item[2]

        replay_json_fn = filename + ".json"
        msg_str = "Replay[" + str(N) + "]: "

        # bu.debug(msg_str + replay_json_fn)
        try:
            if os.path.isfile(replay_json_fn):
                async with aiofiles.open(replay_json_fn) as fp:
                    replay_json = json.loads(await fp.read())
                    # if replay_json['status'] == 'ok':
                    if wi.chk_JSON_replay(replay_json):
                        bu.verbose_std(
                            msg_str + title + " has already been posted. Skipping."
                        )
                    else:
                        os.remove(replay_json_fn)
                        bu.debug(
                            msg_str
                            + "Replay JSON not valid/complete: Deleting "
                            + replay_json_fn,
                            id=workerID,
                        )
                    SKIPPED_N += 1
                    queue.task_done()
                    continue

        except asyncio.CancelledError as err:
            raise err
        except Exception as err:
            bu.error(msg_str + "Unexpected error: " + str(type(err)) + " : " + str(err))
        try:
            # bu.debug('Opening file [' + str(N) +']: ' + filename)
            async with aiofiles.open(filename, "rb") as fp:
                filename = os.path.basename(filename)
                bu.debug(msg_str + "File:  " + filename)
                json_resp = await wi.post_replay(
                    await fp.read(), filename, account_id, title, priv, N
                )
                if json_resp is not None:
                    if await bu.save_JSON(replay_json_fn, json_resp):
                        if wi.chk_JSON_replay(json_resp):
                            if not bu.debug(msg_str + "Replay saved OK: " + filename):
                                bu.verbose_std(msg_str + title + " posted")
                        else:
                            bu.warning(
                                msg_str
                                + "Replay file is not valid/complete: "
                                + filename
                            )
                            ERROR_N += 1
                    else:
                        bu.error(msg_str + "Error saving replay: " + filename)
                        ERROR_N += 1
                else:
                    bu.error(msg_str + "Replay file is not valid/complete: " + filename)
                    ERROR_N += 1
        except Exception as err:
            bu.error(
                msg_str + "Unexpected Exception: " + str(type(err)) + " : " + str(err)
            )
        bu.debug(msg_str + "Marking task done")
        queue.task_done()

    return None


# def getTitle_old(replayfile: str, title: str, i: int) -> str:
#     global wg

#     if title is None:
#         try:
#             filename = os.path.basename(replayfile)
#             bu.debug(filename)
#             map_usrStrs = wg.get_map_user_strs()
#             tank_userStrs = wg.get_tank_user_strs()

#             # p = re.compile('\\d{8}_\\d{4}_(.+)_(' + '|'.join(map_usrStrs) + ')(?:-\\d)?\\.wotbreplay$')
#             # update 6.2 changed the file name format. Bug fixed 2019-09-09 Jylpah
#             p = re.compile(
#                 "\\d{8}_\\d{4}_.*?("
#                 + "|".join(tank_userStrs)
#                 + ")_("
#                 + "|".join(map_usrStrs)
#                 + ")(?:-\\d)?\\.wotbreplay$"
#             )

#             m = p.match(filename)
#             if m is not None:
#                 if wg.tanks is not None:
#                     tank = m.group(1)
#                     if tank in wg.tanks["userStr"]:
#                         tank = wg.tanks["userStr"][tank]
#                     else:
#                         bu.error(
#                             'Tank code: "'
#                             + tank
#                             + '" not found from Tankopedia (tanks.json)'
#                         )
#                 else:
#                     tank = m.group(1)
#                 blitz_map = m.group(2)
#                 if blitz_map in wg.maps:
#                     blitz_map = wg.maps[blitz_map]
#                 else:
#                     bu.error(
#                         'Mapcode: "'
#                         + blitz_map
#                         + '" not found from map database (maps.json)'
#                     )
#                 title = tank + " @ " + blitz_map
#             else:
#                 title = re.sub("\\.wotbreplay$", "", filename)
#         except Exception as err:
#             bu.error(err)
#     else:
#         title.replace("NN", str(i))
#     return title


def getTitle(replayfile: str, title: str | None = None, i: int = 0) -> str:
    global wg
    assert wg is not None, "wg must not be None"

    if title is None:
        try:
            filename = os.path.basename(replayfile)
            bu.debug(filename)
            tank = None
            map_name = None

            with zipfile.ZipFile(replayfile, "r") as archive:
                # bu.debug('Replay file: ' + replayfile + ' opened')
                with io.TextIOWrapper(archive.open("meta.json")) as meta:
                    # bu.debug('Replay file\'s metadata: opened')
                    try:
                        metadata_json = json.load(meta)
                        # player = metadata_json['playerName']
                        tank_name = wg.get_tank_name(
                            metadata_json["vehicleCompDescriptor"]
                        )
                        map_name = wg.get_map(metadata_json["mapName"])
                        bu.debug(
                            "Tank: " + tank_name
                            if tank_name is not None
                            else "NOT FOUND IN tanks.json" + " Map: " + map_name
                        )
                    except Exception as err:
                        bu.error(exception=err)
            if (tank_name is not None) and (map_name is not None):
                title = tank_name + " @ " + map_name
            else:
                title = re.sub("\\.wotbreplay$", "", filename)
        except Exception as err:
            bu.error(err)
    else:
        title.replace("NN", str(i))
    bu.debug("Returning: " + title)
    return title


### UNIT TESTS - pytest

# class TestClass:
# def test_getTitle(self):
# 	#player = "jylpah"
# 	WG_appID  = '81381d3f45fa4aa75b78a7198eb216ad'
# 	wg = WG(WG_appID, 'tanks.json', 'maps.json')
# 	tank_name = "T28 Defender" 	# "A68_T28D"
# 	map_name = "Yukon" 			# "idle"
# 	replay = './test/' + '20201030_2358__jylpah_A_1157485188135816346.wotbreplay'
# 	res = tank_name + ' @ ' + map_name

# 	assert getTitle(replay) == res

# @pytest.mark.asyncio
# async def test_getTitle(self):
# 	#player = "jylpah"
# 	WG_appID  = '81381d3f45fa4aa75b78a7198eb216ad'
# 	wg = WG(WG_appID, 'tanks.json', 'maps.json')
# 	tank_name = "T28 Defender" 	# "A68_T28D"
# 	map_name = "Yukon" 			# "idle"
# 	replay = './test/' + '20201030_2358__jylpah_A_1157485188135816346.wotbreplay'
# 	res = tank_name + ' @ ' + map_name

# 	assert getTitle(replay) == res

### main() -------------------------------------------
if __name__ == "__main__":
    # To avoid 'Event loop is closed' RuntimeError due to compatibility issue with aiohttp
    if sys.platform.startswith("win") and sys.version_info >= (3, 8):
        try:
            from asyncio import WindowsSelectorEventLoopPolicy
        except ImportError:
            pass
        else:
            if not isinstance(
                asyncio.get_event_loop_policy(), WindowsSelectorEventLoopPolicy
            ):
                asyncio.set_event_loop_policy(WindowsSelectorEventLoopPolicy())
    asyncio.run(main(sys.argv[1:]), debug=False)