'use strict';

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

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

const moment = require('moment');

const fileName = "Monitoring";

class MonitoringService extends Service {
  // 查看危险操作记录
  async showMonitoring(body) {
    const { ctx } = this;
    try {
      let { offset, limit, searchOptions, sortOptions } = body;
      offset = (offset - 1) * limit;
      let attributes = ['operate', 'operate_msg', 'type', 'status', 'affect_entries', 'user', 'created_at'],
        where = {}, order = [], dbOptions, joinSubstring = [],
        substring = ['operate_msg', 'user'],
        key = ['type', 'status', 'operate'],
        between = ['created_at'];
      attributes.forEach(element => {
        if (searchOptions[element]) {
          if (searchOptions[element] == '*空') {
            if (joinSubstring.includes(element)) {
              where[element] = null;
            } else {
              where[element] = [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']);
        }
      });
      const insiders = await ctx.model3.Insiders.findAll({ attributes: ['uid', 'name'] });
      if (searchOptions.name) {
        if (searchOptions.name == '*空') {
          where.user = [null, ''];
        } else {
          let uidArr = [];
          insiders.filter(item => {
            if (item.dataValues.name.includes(searchOptions.name)) {
              uidArr.push(item.dataValues.uid);
            }
          });
          where.user = [...uidArr];
        }
      }
      dbOptions = { attributes, offset, limit, where, order };
      const result = await ctx.model3.Monitoring.findAndCountAll(dbOptions);
      result.rows.forEach(element => {
        element.dataValues.name = '';
        insiders.filter(item => {
          if (item.dataValues.uid == element.dataValues.user) {
            element.dataValues.name = item.dataValues.name;
          }
        });
      });
      return result.rows.length == 0 ? false : result;
    } catch (error) {
      const blockName = fileName + "--" + "showMonitoring";
      ctx.app.middleware.log('../../serviceLog', blockName + ">>>>" + error);
      return 'error';
    }
  }

  // 删除危险操作记录
  async deleteMonitoring(uid, modelType, password, requestMsg) {
    const { ctx } = this;
    const systemMonitoring = {
      operate: 2,
      operate_msg: '删除危险操作记录',
      type: 2,
      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 { user, created_at } = requestMsg;
        where = { user, created_at };
      } else if (modelType == "multiple") {
        let user = [], created_at = [];
        for (const key in requestMsg) {
          requestMsg[key].forEach(element => {
            user.push(element.user),
              created_at.push(element.created_at)
          });
        }
        where = { user, created_at };
      }
      const resultList = await ctx.model3.Monitoring.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) {
      systemMonitoring.status = 5;
      await ctx.model3.Monitoring.create(systemMonitoring);
      const blockName = fileName + "--" + "deleteMonitoring";
      ctx.app.middleware.log('../../serviceLog', blockName + ">>>>" + error);
      return 'error';
    }
  }

  // 管理系统导出监控记录
  async downloadMonitoring(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 = ['operate', 'operate_msg', 'type', 'status', 'affect_entries', 'user', 'created_at'],
        where = {}, order = [], dbOptions,
        joinSubstring = [],
        substring = ['operate_msg', 'affect_entries', 'user'],
        key = ['operate', 'type', 'status'],
        between = ['created_at'];
      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.mode3.Monitoring.findAll(dbOptions);
      if (result.length == 0) return { code: false };
      let data = [];
      const operateOptions = [
        {
          value: "0",
          label: "新增数据"
        },
        {
          value: "1",
          label: "编辑数据"
        },
        {
          value: "2",
          label: "删除数据"
        }
      ];
      const typeOptions = [
        {
          value: "0",
          label: "一般等级"
        },
        {
          value: "1",
          label: "重要等级"
        },
        {
          value: "2",
          label: "严重等级"
        }
      ];
      const statusOptions = [
        {
          value: "0",
          label: "因无用户身份未成功执行"
        },
        {
          value: "1",
          label: "因密码错误未成功执行"
        },
        {
          value: "2",
          label: "因权限不足未成功执行"
        },
        {
          value: "3",
          label: "因查询条件错误未成功执行"
        },
        {
          value: "4",
          label: "成功执行"
        },
        {
          value: "5",
          label: "因程序错误未成功执行"
        },
      ];
      result.forEach(element => {
        operateOptions.forEach((item) => {
          if (item.value == element.dataValues["operate"]) {
            element.dataValues["operate"] = item.label;
          }
        });
        typeOptions.forEach((item) => {
          if (item.value == element.dataValues["type"]) {
            element.dataValues["type"] = item.label;
          }
        });
        statusOptions.forEach((item) => {
          if (item.value == element.dataValues["status"]) {
            element.dataValues["status"] = item.label;
          }
        });
        element.dataValues.created_at = moment
          .utc(element.dataValues.created_at)
          .add(8, "hours")
          .format("YYYY年MM月DD日HH时mm分ss秒");
        data.push(element.dataValues);
      });
      return { code: true, data };
    } catch (error) {
      const blockName = fileName + "--" + "downloadMonitoring";
      ctx.app.middleware.log('../../serviceLog', blockName + ">>>>" + error);
      return 'error';
    }
  }
}

module.exports = MonitoringService;