/*
 *  This file is part of SYZOJ.
 *
 *  Copyright (c) 2016 Menci <huanghaorui301@gmail.com>
 *
 *  SYZOJ is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as
 *  published by the Free Software Foundation, either version 3 of the
 *  License, or (at your option) any later version.
 *
 *  SYZOJ is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public
 *  License along with SYZOJ. If not, see <http://www.gnu.org/licenses/>.
 */

'use strict';

let Sequelize = require('sequelize');
let db = syzoj.db;

let User = syzoj.model('user');
let Problem = syzoj.model('problem');

let model = db.define('contest_player', {
  id: { type: Sequelize.INTEGER, primaryKey: true, autoIncrement: true },
  contest_id: { type: Sequelize.INTEGER },
  user_id: { type: Sequelize.INTEGER },

  score: { type: Sequelize.INTEGER },
  score_details: { type: Sequelize.TEXT, json: true },
  time_spent: { type: Sequelize.INTEGER }
}, {
  timestamps: false,
  tableName: 'contest_player',
  indexes: [
    {
      fields: ['contest_id'],
    },
    {
      fields: ['user_id'],
    }
  ]
});

let Model = require('./common');
class ContestPlayer extends Model {
  static async create(val) {
    return ContestPlayer.fromRecord(ContestPlayer.model.build(Object.assign({
      contest_id: 0,
      user_id: 0,
      score: 0,
      score_details: '{}',
      time_spent: 0
    }, val)));
  }

  static async findInContest(where) {
    return ContestPlayer.findOne({ where: where });
  }

  async loadRelationships() {
    let Contest = syzoj.model('contest');
    this.user = await User.fromID(this.user_id);
    this.contest = await Contest.fromID(this.contest_id);
  }

  async updateScore(judge_state) {
    await syzoj.utils.lock(['ContestPlayer::updateScore', this.id], async () => {
      await this.loadRelationships();
      if (this.contest.type === 'ioi') {
        if (!judge_state.pending) {
          if (!this.score_details[judge_state.problem_id]) {
            this.score_details[judge_state.problem_id] = {
              score: judge_state.score,
              judge_id: judge_state.id,
              submissions: {}
            };
          }

          this.score_details[judge_state.problem_id].submissions[judge_state.id] = {
            judge_id: judge_state.id,
            score: judge_state.score,
            time: judge_state.submit_time
          };

          let arr = Object.values(this.score_details[judge_state.problem_id].submissions);
          arr.sort((a, b) => a.time - b.time);

          let maxScoreSubmission = null;
          for (let x of arr) {
            if (!maxScoreSubmission || x.score >= maxScoreSubmission.score && maxScoreSubmission.score < 100) {
              maxScoreSubmission = x;
            }
          }

          this.score_details[judge_state.problem_id].judge_id = maxScoreSubmission.judge_id;
          this.score_details[judge_state.problem_id].score = maxScoreSubmission.score;
          this.score_details[judge_state.problem_id].time = maxScoreSubmission.time;

          this.score = 0;
          for (let x in this.score_details) {
            this.score += this.score_details[x].score;
          }
        }
      } else if (this.contest.type === 'noi') {
        this.score_details[judge_state.problem_id] = {
          score: judge_state.score,
          judge_id: judge_state.id
        };
        this.score = 0;
        for (let x in this.score_details) {
          this.score += this.score_details[x].score;
        }
      } else if (this.contest.type === 'acm') {
        if (!judge_state.pending) {
          if (!this.score_details[judge_state.problem_id]) {
            this.score_details[judge_state.problem_id] = {
              accepted: false,
              unacceptedCount: 0,
              acceptedTime: 0,
              judge_id: 0,
              submissions: {}
            };
          }

          this.score_details[judge_state.problem_id].submissions[judge_state.id] = {
            judge_id: judge_state.id,
            accepted: judge_state.status === 'Accepted',
            compiled: judge_state.status !== 'Compile Error',
            time: judge_state.submit_time
          };

          let arr = Object.values(this.score_details[judge_state.problem_id].submissions);
          arr.sort((a, b) => a.time - b.time);

          this.score_details[judge_state.problem_id].unacceptedCount = 0;
          this.score_details[judge_state.problem_id].judge_id = 0;
          this.score_details[judge_state.problem_id].accepted = 0;
          for (let x of arr) {
            if (x.accepted) {
              this.score_details[judge_state.problem_id].accepted = true;
              this.score_details[judge_state.problem_id].acceptedTime = x.time;
              this.score_details[judge_state.problem_id].judge_id = x.judge_id;
              break;
            } else if (x.compiled) {
              this.score_details[judge_state.problem_id].unacceptedCount++;
            }
          }

          if (!this.score_details[judge_state.problem_id].accepted) {
            this.score_details[judge_state.problem_id].judge_id = arr[arr.length - 1].judge_id;
          }

          this.score = 0;
          for (let x in this.score_details) {
            if (this.score_details[x].accepted) this.score++;
          }
        }
      }
    });
  }

  getModel() { return model; }
}

ContestPlayer.model = model;

module.exports = ContestPlayer;