import path from "path";
import { fileURLToPath } from "url";

import Logs from "./libs/logs.js";
import { getData, setData } from "./libs/cache.js";
import getDateInTimezone from "./libs/getDateInTimezone.js";

import {
  pinnacleGet,
  pinnacleWebLeagues, pinnacleWebGames,
  platformPost, platformGet,
  notifyException,
} from "./libs/pinnacleClient.js";
import parseGame from "./libs/parseGameData.js";

const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);

const gamesMapCacheFile = path.join(__dirname, './cache/pinnacleGamesCache.json');
const globalDataCacheFile = path.join(__dirname, './cache/pinnacleGlobalDataCache.json');

const GLOBAL_DATA = {
  filteredLeagues: [],
  filteredGames: [],
  gamesMap: {},
  straightFixturesVersion: 0,
  straightFixturesCount: 0,
  specialFixturesVersion: 0,
  specialFixturesCount: 0,
  straightOddsVersion: 0,
  // straightOddsCount: 0,
  specialsOddsVersion: 0,
  // specialsOddsCount: 0,
  requestErrorCount: 0,
  loopActive: false,
  loopLastResultTime: 0,
  wsClientData: null,
};

const resetVersionsCount = () => {
  GLOBAL_DATA.straightFixturesVersion = 0;
  GLOBAL_DATA.specialFixturesVersion = 0;
  GLOBAL_DATA.straightOddsVersion = 0;
  GLOBAL_DATA.specialsOddsVersion = 0;

  GLOBAL_DATA.straightFixturesCount = 0;
  GLOBAL_DATA.specialFixturesCount = 0;
}

const incrementVersionsCount = () => {
  GLOBAL_DATA.straightFixturesCount += 1;
  GLOBAL_DATA.specialFixturesCount += 1;
}

/**
 * 更新Web联赛列表
 */
const updateWebLeagues = async () => {
  const getWebLeaguesToday = pinnacleWebLeagues(1);
  const getWebLeaguesTomorrow = pinnacleWebLeagues(0);
  return Promise.all([getWebLeaguesToday, getWebLeaguesTomorrow])
  .then(data => {
    const [webLeaguesToday, webLeaguesTomorrow] = data;
    const leaguesMap = new Map(webLeaguesToday.concat(webLeaguesTomorrow));
    return Array.from(leaguesMap.values()).sort((a, b) => a.id - b.id);
  })
  .then(leagues => {
    Logs.outDev('update leagues list', leagues);
    return platformPost('/api/platforms/update_leagues', { platform: 'pinnacle', leagues });
  })
  .then(() => {
    Logs.outDev('leagues list updated');
    return Promise.resolve(60);
  });
}

/**
 * 定时更新Web联赛列表
 */
const updateWebLeaguesLoop = () => {
  updateWebLeagues()
  .then(delay => {
    setTimeout(() => {
      updateWebLeaguesLoop();
    }, 1000 * delay);
  })
  .catch(err => {
    Logs.err('failed to update leagues list', err.message);
    setTimeout(() => {
      updateWebLeaguesLoop();
    }, 1000 * 5);
  });
}

/**
 * 更新Web比赛列表
 */
const updateWebGames = async () => {
  if (!GLOBAL_DATA.filteredLeagues.length) {
    return Promise.resolve(5);
  }
  const getWebGamesToday = pinnacleWebGames(GLOBAL_DATA.filteredLeagues, 1);
  const getWebGamesTomorrow = pinnacleWebGames(GLOBAL_DATA.filteredLeagues, 0);
  return Promise.all([getWebGamesToday, getWebGamesTomorrow])
  .then(data => {
    const [webGamesToday, webGamesTomorrow] = data;
    return webGamesToday.concat(webGamesTomorrow).sort((a, b) => a.timestamp - b.timestamp);
  })
  .then(games => {
    Logs.outDev('update games list', games);
    return platformPost('/api/platforms/update_games', { platform: 'pinnacle', games });
  })
  .then(() => {
    Logs.outDev('games list updated');
    return Promise.resolve(60);
  });
}

/**
 * 定时更新Web比赛列表
 */
const updateWebGamesLoop = () => {
  updateWebGames()
  .then(delay => {
    setTimeout(() => {
      updateWebGamesLoop();
    }, 1000 * delay);
  })
  .catch(err => {
    Logs.err('failed to update games list', err.message);
    setTimeout(() => {
      updateWebGamesLoop();
    }, 1000 * 5);
  });
}

/**
 * 获取过滤后的联赛数据
 * @returns
 */
const updateFilteredLeagues = () => {
  platformGet('/api/platforms/get_filtered_leagues', { platform: 'pinnacle' })
  .then(res => {
    const { data: filteredLeagues } = res;
    GLOBAL_DATA.filteredLeagues = filteredLeagues.map(item => item.id);
  })
  .catch(error => {
    Logs.err('failed to update filtered leagues', error.message);
  })
  .finally(() => {
    setTimeout(() => {
      updateFilteredLeagues();
    }, 1000 * 10);
  });
}

/**
 * 获取过滤后的比赛数据
 * @returns
 */
const updateFilteredGames = () => {
  platformGet('/api/platforms/get_filtered_games', { platform: 'pinnacle' })
  .then(res => {
    const { data: filteredGames } = res;
    GLOBAL_DATA.filteredGames = filteredGames.map(item => item.id);
  })
  .catch(error => {
    Logs.err('failed to update filtered games', error.message);
  })
  .finally(() => {
    setTimeout(() => {
      updateFilteredGames();
    }, 1000 * 10);
  });
}

/**
 * 获取直赛数据
 * @returns
 */
const getStraightFixtures = async () => {
  if (!GLOBAL_DATA.filteredLeagues.length) {
    resetVersionsCount();
    return Promise.reject(new Error('no filtered leagues', { cause: 400 }));
  }
  const leagueIds = GLOBAL_DATA.filteredLeagues.join(',');
  let since = GLOBAL_DATA.straightFixturesVersion;
  if (GLOBAL_DATA.straightFixturesCount >= 12) {
    since = 0;
    GLOBAL_DATA.straightFixturesCount = 0;
  }
  if (since == 0) {
    Logs.outDev('full update straight fixtures');
  }
  return pinnacleGet('/v3/fixtures', { sportId: 29, leagueIds, since })
  .then(data => {
    const { league, last } = data;
    if (!last) {
      return {};
    }
    GLOBAL_DATA.straightFixturesVersion = last;
    const games = league?.map(league => {
      const { id: leagueId, events } = league;
      return events?.map(event => {
        const { starts } = event;
        const timestamp = new Date(starts).getTime();
        return { leagueId, ...event, timestamp };
      });
    })
    .flat() ?? [];
    const update = since == 0 ? 'full' : 'increment';
    return { games, update };
  });
}

/**
 * 更新直赛数据
 * @returns
 */
const updateStraightFixtures = async () => {
  return getStraightFixtures()
  .then(data => {
    const { games, update } = data ?? {};
    const { gamesMap } = GLOBAL_DATA;
    if (games?.length) {
      games.forEach(game => {
        const { id } = game;
        if (!gamesMap[id]) {
          gamesMap[id] = game;
        }
        else {
          Object.assign(gamesMap[id], game);
        }
      });
    }
    if (update && update == 'full') {
      const gamesSet = new Set(games.map(game => game.id));
      Object.keys(gamesMap).forEach(key => {
        if (!gamesSet.has(+key)) {
          delete gamesMap[key];
        }
      });
    }
    return Promise.resolve('StraightFixtures');
  });
}

/**
 * 获取直赛赔率数据
 * @returns
 */
const getStraightOdds = async () => {
  if (!GLOBAL_DATA.filteredLeagues.length) {
    resetVersionsCount();
    return Promise.reject(new Error('no filtered leagues', { cause: 400 }));
  }
  const leagueIds = GLOBAL_DATA.filteredLeagues.join(',');
  const since = GLOBAL_DATA.straightOddsVersion;
  // if (GLOBAL_DATA.straightOddsCount >= 27) {
  //   since = 0;
  //   GLOBAL_DATA.straightOddsCount = 3;
  // }
  if (since == 0) {
    Logs.outDev('full update straight odds');
  }
  return pinnacleGet('/v3/odds', { sportId: 29, oddsFormat: 'Decimal', leagueIds, since })
  .then(data => {
    const { leagues, last } = data;
    if (!last) {
      return [];
    }
    GLOBAL_DATA.straightOddsVersion = last;
    const games = leagues?.flatMap(league => league.events);
    // return games;
    return games?.map(item => {
      const { periods, ...rest } = item;
      const straight = periods?.find(period => period.number == 0);
      return { ...rest, periods: { straight }};
    }) ?? [];
  });
}

/**
 * 更新直赛赔率数据
 * @returns
 */
const updateStraightOdds = async () => {
  return getStraightOdds()
  .then(games => {
    if (games?.length) {
      const { gamesMap } = GLOBAL_DATA;
      games.forEach(game => {
        const { id, periods, ...rest } = game;
        const localGame = gamesMap[id];
        if (localGame) {
          Object.assign(localGame, rest);
          if (!localGame.periods && periods) {
            localGame.periods = periods;
          }
          else if (periods) {
            Object.assign(localGame.periods, periods);
          }
        }
      });
    }
    return Promise.resolve('StraightOdds');
  });
}

/**
 * 获取特殊赛数据
 * @returns
 */
const getSpecialFixtures = async () => {
  if (!GLOBAL_DATA.filteredLeagues.length) {
    resetVersionsCount();
    return Promise.reject(new Error('no filtered leagues', { cause: 400 }));
  }
  const leagueIds = GLOBAL_DATA.filteredLeagues.join(',');
  let since = GLOBAL_DATA.specialFixturesVersion;
  if (GLOBAL_DATA.specialFixturesCount >= 18) {
    since = 0;
    GLOBAL_DATA.specialFixturesCount = 6;
  }
  if (since == 0) {
    Logs.outDev('full update special fixtures');
  }
  return pinnacleGet('/v2/fixtures/special', { sportId: 29, leagueIds, since })
  .then(data => {
    const { leagues, last } = data;
    if (!last) {
      return [];
    }
    GLOBAL_DATA.specialFixturesVersion = last;
    const specials = leagues?.map(league => {
      const { specials } = league;
      return specials?.filter(special => special.event)
      .map(special => {
        const { event: { id: eventId, periodNumber }, ...rest } = special ?? { event: {} };
        return { eventId, periodNumber, ...rest };
      }) ?? [];
    })
    .flat()
    .filter(special => {
      if (special.name.includes('Winning Margin') || special.name.includes('Exact Total Goals')) {
        return true;
      }
      return false;
    }) ?? [];
    const update = since == 0 ? 'full' : 'increment';
    return { specials, update };
  });
}

/**
 * 合并特殊赛盘口数据
 * @param {*} localContestants
 * @param {*} remoteContestants
 * @returns
 */
const mergeContestants = (localContestants=[], remoteContestants=[]) => {
  const localContestantsMap = new Map(localContestants.map(contestant => [contestant.id, contestant]));
  remoteContestants.forEach(contestant => {
    const localContestant = localContestantsMap.get(contestant.id);
    if (localContestant) {
      Object.assign(localContestant, contestant);
    }
    else {
      localContestants.push(contestant);
    }
  });
  const remoteContestantsMap = new Map(remoteContestants.map(contestant => [contestant.id, contestant]));
  for (let i = localContestants.length - 1; i >= 0; i--) {
    if (!remoteContestantsMap.has(localContestants[i].id)) {
      localContestants.splice(i, 1);
    }
  }
  return localContestants;
}

/**
 * 合并特殊赛数据
 * @param {*} localSpecials
 * @param {*} remoteSpecials
 * @param {*} specialName
 * @returns
 */
const mergeSpecials = (localSpecials, remoteSpecials, specialName) => {
  if (localSpecials[specialName] && remoteSpecials[specialName]) {
    const { contestants: specialContestants, ...specialRest } = remoteSpecials[specialName];
    Object.assign(localSpecials[specialName], specialRest);
    mergeContestants(localSpecials[specialName].contestants, specialContestants);
  }
  else if (remoteSpecials[specialName]) {
    localSpecials[specialName] = remoteSpecials[specialName];
  }
}

/**
 * 更新特殊赛数据
 * @returns
 */
const updateSpecialFixtures = async () => {
  return getSpecialFixtures()
  .then(data => {
    const { specials, update } = data ?? {};
    if (specials?.length) {
      const { gamesMap } = GLOBAL_DATA;
      const gamesSpecialsMap = {};
      specials.forEach(special => {
        const { eventId } = special;
        if (!gamesSpecialsMap[eventId]) {
          gamesSpecialsMap[eventId] = {};
        }
        if (special.name == 'Winning Margin') {
          gamesSpecialsMap[eventId].winningMargin = special;
        }
        else if (special.name == 'Exact Total Goals') {
          gamesSpecialsMap[eventId].exactTotalGoals = special;
        }
      });

      Object.keys(gamesSpecialsMap).forEach(eventId => {
        if (!gamesMap[eventId]) {
          return;
        }

        if (!gamesMap[eventId].specials) {
          gamesMap[eventId].specials = {};
        }

        const localSpecials = gamesMap[eventId].specials;
        const remoteSpecials = gamesSpecialsMap[eventId];

        mergeSpecials(localSpecials, remoteSpecials, 'winningMargin');
        mergeSpecials(localSpecials, remoteSpecials, 'exactTotalGoals');

      });
    }
    return Promise.resolve('SpecialFixtures');
  });
}

/**
 * 获取特殊赛赔率数据
 * @returns
 */
const getSpecialsOdds = async () => {
  if (!GLOBAL_DATA.filteredLeagues.length) {
    resetVersionsCount();
    return Promise.reject(new Error('no filtered leagues', { cause: 400 }));
  }
  const leagueIds = GLOBAL_DATA.filteredLeagues.join(',');
  const since = GLOBAL_DATA.specialsOddsVersion;
  // if (GLOBAL_DATA.specialsOddsCount >= 33) {
  //   since = 0;
  //   GLOBAL_DATA.specialsOddsCount = 9;
  // }
  if (since == 0) {
    Logs.outDev('full update specials odds');
  }
  return pinnacleGet('/v2/odds/special', { sportId: 29, oddsFormat: 'Decimal', leagueIds, since })
  .then(data => {
    const { leagues, last } = data;
    if (!last) {
      return [];
    }
    GLOBAL_DATA.specialsOddsVersion = last;
    return leagues?.flatMap(league => league.specials);
  });
}

/**
 * 更新特殊赛赔率数据
 * @returns
 */
const updateSpecialsOdds = async () => {
  return getSpecialsOdds()
  .then(specials => {
    if (specials?.length) {
      const { gamesMap } = GLOBAL_DATA;
      const contestants = Object.values(gamesMap)
      .filter(game => game.specials)
      .map(game => {
        const { specials } = game;
        const contestants = Object.values(specials).map(special => {
          const { contestants } = special;
          return contestants.map(contestant => [contestant.id, contestant]);
        });
        return contestants;
      }).flat(2);
      const contestantsMap = new Map(contestants);
      const lines = specials.flatMap(special => special.contestantLines);
      lines.forEach(line => {
        const { id, handicap, lineId, max, price } = line;
        const contestant = contestantsMap.get(id);
        if (!contestant) {
          return;
        }
        contestant.handicap = handicap;
        contestant.lineId = lineId;
        contestant.max = max;
        contestant.price = price;
      });
    }
    return Promise.resolve('SpecialsOdds');
  });
}

/**
 * 获取滚球数据
 * @returns
 */
const getInRunning = async () => {
  return pinnacleGet('/v2/inrunning')
  .then(data => {
    const sportId = 29;
    const leagues = data.sports?.find(sport => sport.id == sportId)?.leagues ?? [];
    return leagues.filter(league => {
      if (!GLOBAL_DATA.filteredLeagues.length) {
        return true;
      }
      const { id } = league;
      const filteredLeaguesSet = new Set(GLOBAL_DATA.filteredLeagues);
      return filteredLeaguesSet.has(id);
    }).flatMap(league => league.events);
  });
}

/**
 * 更新滚球数据
 * @returns
 */
const updateInRunning = async () => {
  return getInRunning()
  .then(games => {
    if (!games.length) {
      return Promise.resolve('InRunning');
    }
    const { gamesMap } = GLOBAL_DATA;
    games.forEach(game => {
      const { id, state, elapsed } = game;
      const localGame = gamesMap[id];
      if (localGame) {
        Object.assign(localGame, { state, elapsed });
      }
    });
    return Promise.resolve('InRunning');
  });
}

/**
 * 获取比赛盘口赔率数据
 * @returns {Object}
 */
const getGamesEvents = () => {
  const {
    filteredGames, gamesMap,
    straightFixturesVersion: sfv,
    specialFixturesVersion: pfv,
    straightOddsVersion: sov,
    specialsOddsVersion: pov
  } = GLOBAL_DATA;
  const filteredGamesSet = new Set(filteredGames);
  const nowTime = Date.now();
  const gamesData = {};
  Object.values(gamesMap).forEach(game => {
    const { id, liveStatus, parentId, resultingUnit, timestamp } = game;

    if (resultingUnit !== 'Regular') {
      return false;  // 非常规赛事不处理
    }

    const gmtMinus4Date = getDateInTimezone(-4);
    const todayEndTime = new Date(`${gmtMinus4Date} 23:59:59 GMT-4`).getTime();
    const tomorrowEndTime = todayEndTime + 24 * 60 * 60 * 1000;
    if (liveStatus == 1 && timestamp < nowTime) {
      game.marketType = 2;  // 滚球赛事
    }
    else if (liveStatus != 1 && timestamp > nowTime && timestamp <= todayEndTime) {
      game.marketType = 1;  // 今日赛事
    }
    else if (liveStatus != 1 && timestamp > todayEndTime && timestamp <= tomorrowEndTime) {
      game.marketType = 0;  // 明日早盘赛事
    }
    else {
      game.marketType = -1;  // 非近期赛事
    }

    if (game.marketType < 0) {
      return false;  // 非近期赛事不处理
    }

    let actived = false;
    if (liveStatus != 1 && (filteredGamesSet.has(id) || !filteredGames.length)) {
      actived = true;  // 在赛前列表中
      game.id = id;
      game.originId = 0;
    }
    else if (liveStatus == 1 && (filteredGamesSet.has(parentId) || !filteredGames.length)) {
      actived = true;  // 在滚球列表中
      game.id = parentId;
      game.originId = id;
    }

    if (actived) {
      const { marketType, ...rest } = parseGame(game);
      if (!gamesData[marketType]) {
        gamesData[marketType] = [];
      }
      gamesData[marketType].push(rest);
    }
  });
  const games = Object.values(gamesData).flat();
  const timestamp = Math.max(sfv, pfv, sov, pov);
  const data = { games, timestamp };
  return data;
}

/**
 * 更新赔率数据
 */
const updateOdds = async () => {
  const { games, timestamp } = getGamesEvents();
  return platformPost('/api/platforms/update_odds', { platform: 'pinnacle', games, timestamp });
}


const pinnacleDataLoop = () => {
  updateStraightFixtures()
  .then(() => {
    return Promise.all([
      updateStraightOdds(),
      updateSpecialFixtures(),
      updateInRunning(),
    ]);
  })
  .then(() => {
    return updateSpecialsOdds();
  })
  .then(() => {
    if (!GLOBAL_DATA.loopActive) {
      GLOBAL_DATA.loopActive = true;
      Logs.out('loop active');
      notifyException('Pinnacle API startup.');
    }

    if (GLOBAL_DATA.requestErrorCount > 0) {
      GLOBAL_DATA.requestErrorCount = 0;
      Logs.out('request error count reset');
    }

    const nowTime = Date.now();
    const loopDuration = nowTime - GLOBAL_DATA.loopLastResultTime;
    GLOBAL_DATA.loopLastResultTime = nowTime;
    if (loopDuration > 15000) {
      Logs.out('loop duration is too long', loopDuration);
    }
    else {
      Logs.outDev('loop duration', loopDuration);
    }
    setData(gamesMapCacheFile, GLOBAL_DATA.gamesMap);

    return updateOdds();
  })
  .catch(err => {
    Logs.err(err.message, err.source);
    GLOBAL_DATA.requestErrorCount++;
    if (GLOBAL_DATA.loopActive && GLOBAL_DATA.requestErrorCount > 5) {
      const exceptionMessage = 'request errors have reached the limit';
      Logs.out(exceptionMessage);
      GLOBAL_DATA.loopActive = false;

      Logs.out('loop inactive');
      notifyException(`Pinnacle API paused. ${exceptionMessage}. ${err.message}`);
    }
  })
  .finally(() => {
    const { loopActive } = GLOBAL_DATA;
    let loopDelay = 1000 * 5;
    if (!loopActive) {
      loopDelay = 1000 * 60;
      resetVersionsCount();
    }
    else {
      incrementVersionsCount();
    }
    setTimeout(pinnacleDataLoop, loopDelay);
  });
}


/**
 * 缓存GLOBAL_DATA数据到文件
 */
const saveGlobalDataToCache = async () => {
  return setData(globalDataCacheFile, GLOBAL_DATA);
}

const loadGlobalDataFromCache = async () => {
  return getData(globalDataCacheFile)
  .then(data => {
    if (!data) {
      return;
    }
    Object.keys(GLOBAL_DATA).forEach(key => {
      if (key in data) {
        GLOBAL_DATA[key] = data[key];
      }
    });
  });
}

const main = () => {
  if (!process.env.PINNACLE_USERNAME || !process.env.PINNACLE_PASSWORD) {
    Logs.err('USERNAME or PASSWORD is not set');
    return;
  }
  updateFilteredLeagues();
  updateFilteredGames();
  loadGlobalDataFromCache()
  .then(() => {
    Logs.out('global data loaded');
  })
  .then(() => {
    updateWebLeaguesLoop();
    updateWebGamesLoop();
    pinnacleDataLoop();
  })
  .catch(err => {
    Logs.err('failed to load global data', err.message);
  })
  .finally(() => {
    GLOBAL_DATA.loopLastResultTime = Date.now();
    GLOBAL_DATA.loopActive = true;
  });
}

// 监听进程退出事件，保存GLOBAL_DATA数据
const saveExit = (code) => {
  saveGlobalDataToCache()
  .then(() => {
    Logs.out('global data saved');
  })
  .catch(err => {
    Logs.err('failed to save global data', err.message);
  })
  .finally(() => {
    process.exit(code);
  });
}
process.on('SIGINT', () => {
  saveExit(0);
});
process.on('SIGTERM', () => {
  saveExit(0);
});
process.on('SIGUSR2', () => {
  saveExit(0);
});

main();