'use strict';

const Service = require('../core/base_service');

const { Op } = require('sequelize');

const moment = require('moment');

const fileName = "ContestChoiceTopic";

class ContestChoiceTopicService extends Service {
  // 管理系统导入选择题
  async importChoiceTopic(form) {
    const { ctx } = this;
    try {
      const result = await ctx.model4.ChoiceTopic.bulkCreate(form);
      return result.length == 0 ? false : result;
    } catch (error) {
      const blockName = fileName + "--" + "importChoiceTopic";
      ctx.app.middleware.log('../../serviceLog', blockName + ">>>>" + error);
      return 'error';
    }
  }

  // 管理系统创建选择题
  async addChoiceTopic(form) {
    const { ctx } = this;
    try {
      const result = await ctx.model4.ChoiceTopic.bulkCreate(form);
      return result.length == 0 ? false : result;
    } catch (error) {
      const blockName = fileName + "--" + "addChoiceTopic";
      ctx.app.middleware.log('../../serviceLog', blockName + ">>>>" + error);
      return 'error';
    }
  }

  // 管理系统查看选择题
  async showChoiceTopic(body) {
    const { ctx } = this;
    try {
      let { offset, limit, searchOptions, sortOptions } = body;
      offset = (offset - 1) * limit;
      let attributes = ['topic', 'options_a', 'options_b', 'options_c', 'options_d', 'answer'],
        where = {}, order = [], dbOptions,
        joinSubstring = [],
        substring = ['topic', 'options_a', 'options_b', 'options_c', 'options_d'],
        key = ['answer'],
        between = [];
      attributes.forEach(element => {
        if (searchOptions[element]) {
          if (searchOptions[element] == '*空') {
            if (joinSubstring.includes(element)) {
              where[element] = null;
            } else {
              where[element] = [null, ''];
            }
          } else if (joinSubstring.includes(element)) {
            let targetKeyArr = [];
            where[element] = targetKeyArr.length > 0 ? targetKeyArr : 'null';
          } else if (substring.includes(element)) {
            where[element] = { [Op.substring]: searchOptions[element] };
          } else if (key.includes(element)) {
            where[element] = searchOptions[element];
          } else if (between.includes(element)) {
            where[element] = { [Op.between]: [searchOptions[element][0], searchOptions[element][1]] };
          }
        }
        if (sortOptions[element] == true) {
          order.push([element, 'ASC']);
        } else if (sortOptions[element] == false) {
          order.push([element, 'DESC']);
        }
      });
      dbOptions = { attributes, offset, limit, where, order };
      const result = await ctx.model4.ChoiceTopic.findAndCountAll(dbOptions);
      return result.rows.length == 0 ? false : result;
    } catch (error) {
      const blockName = fileName + "--" + "showChoiceTopic";
      ctx.app.middleware.log('../../serviceLog', blockName + ">>>>" + error);
      return 'error';
    }
  }

  // 管理系统编辑选择题
  async editChoiceTopic(uid, modelType, updateMsg, requestMsg) {
    const { ctx } = this;
    try {
      const result = await ctx.model3.Insiders.findOne({ where: { uid } });
      if (!result || result.dataValues.role < 6) return false;
      let where = {};
      if (modelType == "single") {
        const { topic, options_a, options_b, options_c, options_d, answer } = requestMsg;
        where = { topic, options_a, options_b, options_c, options_d, answer };
      } else if (modelType == "multiple") {
        let topic = [], options_a = [], options_b = [], options_c = [], options_d = [], answer = [];
        for (const key in requestMsg) {
          requestMsg[key].forEach(element => {
            topic.push(element.topic),
              options_a.push(element.options_a),
              options_b.push(element.options_b),
              options_c.push(element.options_c),
              options_d.push(element.options_d),
              answer.push(element.answer)
          });
        }
        where = { topic, options_a, options_b, options_c, options_d, answer };
      }
      updateMsg.updated_at = new Date();
      const resultList = await ctx.model4.ChoiceTopic.update(updateMsg, { where });
      return resultList[0] == 0 ? false : resultList;
    } catch (error) {
      const blockName = fileName + "--" + "editChoiceTopic";
      ctx.app.middleware.log('../../serviceLog', blockName + ">>>>" + error);
      return 'error';
    }
  }

  // 管理系统删除选择题
  async delChoiceTopic(uid, modelType, password, requestMsg) {
    const { ctx } = this;
    const systemMonitoring = {
      operate: 2,
      operate_msg: '删除竞赛题目',
      type: 0,
      status: 0,
      affect_entries: 0,
      user: uid,
      created_at: new Date()
    };
    try {
      const result = await ctx.model3.Insiders.findOne({ where: { uid } });
      if (!result || result.dataValues.password !== this.shaForm(password, this.decryptRequest(result.dataValues.salt)) || result.dataValues.role < 9) {
        if (!result) systemMonitoring.status = 0;
        else if (result.dataValues.password !== this.shaForm(password, this.decryptRequest(result.dataValues.salt))) systemMonitoring.status = 1;
        else if (result.dataValues.role < 9) systemMonitoring.status = 2;
        await ctx.model3.Monitoring.create(systemMonitoring);
        return false;
      };
      let where = {};
      if (modelType == "single") {
        const { topic, options_a, options_b, options_c, options_d, answer } = requestMsg;
        where = { topic, options_a, options_b, options_c, options_d, answer };
      } else if (modelType == "multiple") {
        let topic = [], options_a = [], options_b = [], options_c = [], options_d = [], answer = [];
        for (const key in requestMsg) {
          requestMsg[key].forEach(element => {
            topic.push(element.topic),
              options_a.push(element.options_a),
              options_b.push(element.options_b),
              options_c.push(element.options_c),
              options_d.push(element.options_d),
              answer.push(element.answer)
          });
        }
        where = { topic, options_a, options_b, options_c, options_d, answer };
      }
      const resultList = await ctx.model4.ChoiceTopic.destroy({ where });
      systemMonitoring.status = resultList == 0 ? 3 : 4;
      systemMonitoring.affect_entries = resultList;
      await ctx.model3.Monitoring.create(systemMonitoring);
      return resultList == 0 ? false : true;
    } catch (error) {
      const blockName = fileName + "--" + "delChoiceTopic";
      ctx.app.middleware.log('../../serviceLog', blockName + ">>>>" + error);
      return 'error';
    }
  }

  // 管理系统导出选择题
  async downloadChoiceTopic(uid, searchMsg) {
    const { ctx } = this;
    try {
      const user = await ctx.model3.Insiders.findOne({ where: { uid } });
      if (!user || user.dataValues.role < 3) return false;
      let { searchOptions, sortOptions } = searchMsg;
      let attributes = ['topic', 'options_a', 'options_b', 'options_c', 'options_d', 'answer'],
        where = {}, order = [], dbOptions,
        joinSubstring = [],
        substring = ['topic', 'options_a', 'options_b', 'options_c', 'options_d', 'answer'],
        key = [],
        between = [];
      attributes.forEach(element => {
        if (searchOptions[element]) {
          if (searchOptions[element] == '*空') {
            if (joinSubstring.includes(element)) {
              where[element] = null;
            } else {
              where[element] = [null, ''];
            }
          } else if (joinSubstring.includes(element)) {
            let targetKeyArr = [];
            where[element] = targetKeyArr.length > 0 ? targetKeyArr : 'null';
          } else if (substring.includes(element)) {
            where[element] = { [Op.substring]: searchOptions[element] };
          } else if (key.includes(element)) {
            where[element] = searchOptions[element];
          } else if (between.includes(element)) {
            where[element] = { [Op.between]: [searchOptions[element][0], searchOptions[element][1]] };
          }
        }
        if (sortOptions[element] == true) {
          order.push([element, 'ASC']);
        } else if (sortOptions[element] == false) {
          order.push([element, 'DESC']);
        }
      });
      dbOptions = { attributes, where, order };
      const result = await ctx.model4.ChoiceTopic.findAll(dbOptions);
      if (result.length == 0) return { code: false };
      let data = [];
      result.forEach(element => {
        data.push(element.dataValues);
      });
      return { code: true, data };
    } catch (error) {
      const blockName = fileName + "--" + "downloadChoiceTopic";
      ctx.app.middleware.log('../../serviceLog', blockName + ">>>>" + error);
      return 'error';
    }
  }
}

module.exports = ContestChoiceTopicService;