import React, { Component } from 'react';
import './index.less';
import { Icon, Typography } from 'antd';
import { Link } from 'react-router-dom';
import Page from '@src/containers/Page';
import Assets from '@src/components/Assets';
import { getMap, formatPercent, formatSeconds } from '@src/services/Tools';
import Button from '../../../components/Button';
import Tabs from '../../../components/Tabs';
import UserAction from '../../../components/UserAction';
import UserPagination from '../../../components/UserPagination';

import { refreshQuestionType, refreshStruct } from '../index';
import { User } from '../../../stores/user';
import { Question } from '../../../stores/question';

import { QuestionType, QuestionDifficult } from '../../../../Constant';
import { My } from '../../../stores/my';

const QuestionTypeMap = getMap(QuestionType, 'value', 'label');
// const QuestionDifficultMap = getMap(QuestionDifficult, 'value', 'label');

export default class extends Page {
  initState() {
    this.searchNo = 0;
    return {
      list: [],
      searchList: [],
      keyword: '',
      subject: 'verbal',
      filterMap: {},
      sortMap: {},
      focus: false,
      difficultSelect: QuestionDifficult.map(row => {
        return {
          title: row.label,
          key: row.value,
        };
      }),
      defaultSortMap: {},
    };
  }

  initData() {
    const data = Object.assign(this.state, this.state.search);
    data.filterMap = this.state.search;
    if (data.order) {
      data.sortMap = { [data.order]: data.direction };
    } else if (data.direction == null || data.direction === '') {
      data.sortMap = Object.assign({}, this.state.defaultSortMap);
    }
    if (data.subject) {
      data.filterMap.subject = data.subject;
    }
    this.setState(data);
    refreshQuestionType(this, data.subject, data.questionType, {
      needSentence: false,
      allSubject: true,
      excludeAwa: true,
    }).then(({ questionTypes }) => {
      return refreshStruct(this, questionTypes, 'exercise', data.one, data.two, {
        all: true,
      }).then(({ structIds }) => {
        let handler = null;
        if (this.state.search.keyword) {
          handler = Question.searchStem({
            keyword: this.state.search.keyword,
            page: this.state.search.page,
            size: this.state.search.size,
          });
        } else {
          handler = Question.searchStem(
            Object.assign({ questionTypes, structIds, module: 'exercise' }, this.state.search, {
              order: Object.keys(data.sortMap)
                .map(key => {
                  return `${key} ${data.sortMap[key]}`;
                })
                .join(','),
            }),
          );
        }
        handler.then(result => {
          const list = (this.state.search.keyword || '').split(' ').filter(row => row && row.length > 1);
          result.list = result.list.map(row => {
            if (list.length > 0 && row.question.description) {
              for (let i = 0; i < list.length; i += 1) {
                const reg = new RegExp(`(${list[i]})`, 'ig');
                row.question.description = row.question.description.replace(reg, '<span>$1</span>');
              }
            }
            return row;
          });
          this.setState({ list: result.list, total: result.total, page: data.page, searchResult: !!data.keyword });
        });
      });
    });
  }

  onRefreshFilter(query) {
    // this.changeQuery(query);
    // this.setState(query);
    this.refreshQuery(query);
    // this.initData();
  }

  onFilter(value) {
    this.search(value);
    // this.initData();
  }

  onSearch(value) {
    const { keyword } = this.state;
    User.addSearch(value || keyword);
    // this.search({ page: 1, keyword }, false);
    // this.changeQuery({ keyword });
    // this.setState({ keyword });
    this.refreshQuery({ keyword: value || keyword });
    // this.initData();
  }

  onSort(value) {
    const keys = Object.keys(value);
    const { sortMap, defaultSortMap } = this.state;
    const index = keys.length > 1 && sortMap[keys[0]] ? 1 : 0;
    let order = keys.length && value[keys[index]] ? keys[index] : null;
    let direction = keys.length ? value[keys[index]] : null;
    if (order == null) {
      const [prevOrder] = Object.keys(sortMap);
      if (!defaultSortMap[prevOrder]) {
        const sortKeys = Object.keys(defaultSortMap);
        if (sortKeys.length > 0) {
          [order] = sortKeys;
          direction = defaultSortMap[order];
        }
      }
    }
    this.search({ order, direction }, false);
    this.initData();
  }

  onChangePage(page) {
    this.search({ page }, false);
    this.initData();
  }

  onChangeSearch(keyword, force = false) {
    if (!force) {
      this.searchNo += 1;
      const no = this.searchNo;
      Question.searchNo({ keyword, module: 'exercise', page: 1, size: 5 }).then(result => {
        if (no !== this.searchNo) return;
        this.setState({ searchList: result.list.map(row => row.title) });
      });
    }
    this.setState({ keyword });
  }

  addSearchHistory(id) {
    My.addSearchHistory(id);
  }

  toggleCollect(index) {
    const { list } = this.props;
    const questionNo = list[index];
    if (!questionNo.collect) {
      My.addQuestionCollect(questionNo.id).then(() => {
        questionNo.collect = true;
        questionNo.collectNumber += 1;
        this.setState({ list });
      });
    } else {
      My.delQuestionCollect(questionNo.id).then(() => {
        questionNo.collect = false;
        questionNo.collectNumber -= 1;
        this.setState({ list });
      });
    }
  }

  renderView() {
    const { searchResult } = this.state;
    return (
      <div>
        {this.renderSearch()}
        {searchResult ? this.renderResult() : this.renderFilter()}
      </div>
    );
  }

  renderSearch() {
    const { searchHistoryList = [] } = this.props.user;
    const { searchList = [], keyword, focus, tip } = this.state;
    // console.log(focus, tip, searchHistoryList);
    return (
      <div className="search-layout">
        <div className="search-wrapper">
          <input
            value={keyword}
            onChange={e => this.onChangeSearch(e.target.value)}
            onFocus={() => this.setState({ focus: true })}
            onBlur={() => this.setState({ focus: false })}
          />
          <Button width={150} onClick={() => this.onSearch(keyword)}>
            <Icon className="m-r-5" type="search" />
            搜索题目
          </Button>
          {(focus || tip) && (
            <div
              hidden={!keyword || searchList.length === 0}
              className="search-tip-wrapper"
              onMouseEnter={() => this.setState({ tip: true })}
              onMouseLeave={() => this.setState({ tip: false })}
            >
              {searchList.map(item => {
                return (
                  <div
                    className="t-2 t-s-16"
                    onClick={() => {
                      // this.onChangeSearch(item, true);
                      this.onSearch(item);
                    }}
                  >
                    {item}
                  </div>
                );
              })}
            </div>
          )}
          {(focus || tip) && (
            <div
              hidden={keyword || searchHistoryList.length === 0}
              className="search-tip-wrapper"
              onMouseEnter={() => this.setState({ tip: true })}
              onMouseLeave={() => this.setState({ tip: false })}
            >
              {searchHistoryList.map((item, index) => {
                return (
                  <div
                    className="t-2 t-s-16"
                    onClick={() => {
                      // this.onChangeSearch(item, true);
                      this.onSearch(item);
                    }}
                  >
                    {item}
                    <div
                      className="f-r t-4 t-s-12 c-p"
                      onClick={e => {
                        e.stopPropagation();
                        User.removeSearchIndex(index);
                      }}
                    >
                      删除
                    </div>
                  </div>
                );
              })}
              <div className="all-del t-r">
                <span className="t-4 t-s-12 c-p" onClick={() => User.clearSearch()}>
                  删除历史
                </span>
              </div>
            </div>
          )}
        </div>
      </div>
    );
  }

  renderFilter() {
    const { filterMap, sortMap } = this.state;
    const {
      subject,
      questionSubjectSelect,
      questionSubjectMap = {},
      difficultSelect,
      oneSelect,
      twoSelectMap = {},
      list = [],
      total,
      page,
    } = this.state;
    const { login } = this.props.user;
    return (
      <div className="filter-layout">
        <div className="content">
          <div style={{ right: 0, top: 0 }} className="p-a" hidden={!login}>
            <Link to="/question/search/history">
              <Assets name="history_time" className="m-r-5" /> 浏览历史 >
            </Link>
          </div>
          <Tabs
            border
            force
            type="division"
            theme="theme"
            size="small"
            space={5}
            width={220}
            active={subject}
            tabs={questionSubjectSelect}
            onChange={key => {
              this.onRefreshFilter({ subject: key, order: undefined, direction: undefined });
            }}
          />
          <UserAction
            selectList={[
              {
                key: 'questionType',
                placeholder: '题型',
                select: questionSubjectMap[subject] || [],
              },
              {
                label: '范围',
                children: [
                  {
                    key: 'one',
                    placeholder: '全部',
                    select: oneSelect,
                  },
                  {
                    placeholder: '全部',
                    key: 'two',
                    be: 'one',
                    selectMap: twoSelectMap,
                  },
                ],
              },
              {
                right: true,
                placeholder: '难度',
                key: 'difficult',
                select: difficultSelect,
              },
            ]}
            sortList={[
              { key: 'time', label: '全站用时', fixed: true, right: true },
              { key: 'correct', label: '平均正确率', fixed: true, right: true },
              { key: 'collect_number', label: '收藏人数', fixed: true, right: true },
            ]}
            filterMap={filterMap}
            sortMap={sortMap}
            onSort={value => this.onSort(value)}
            onFilter={value => this.onFilter(value)}
          />
          {this.renderList()}
          {total > 0 && list.length > 0 && (
            <UserPagination
              total={total}
              current={page}
              pageSize={this.state.search.size}
              onChange={p => this.onChangePage(p)}
            />
          )}
        </div>
      </div>
    );
  }

  renderResult() {
    const { total, list, page } = this.state;
    return (
      <div className="result-layout">
        <div className="content">
          <div className="m-b-1">
            <span className="t-1 t-s-24">搜索结果:</span>
            <span className="t-2 t-s-18">共{total}条</span>
          </div>
          {this.renderList()}
          {total > 0 && list.length > 0 && (
            <UserPagination
              total={total}
              current={page}
              pageSize={this.state.search.size}
              onChange={p => this.onChangePage(p)}
            />
          )}
        </div>
      </div>
    );
  }

  renderList() {
    const { list } = this.state;
    return list.map(item => {
      return <SearchItem data={item} onClick={() => this.addSearchHistory(item.id)} />;
    });
  }
}

class SearchItem extends Component {
  render() {
    const { data = {}, onClick } = this.props;
    return (
      <div className="search-item">
        <div className="search-item-head">
          <span className="t-15 t-s-16 m-r-1">{QuestionTypeMap[data.question.questionType]}</span>
          <a className="t-1 t-s-16" href={`/question/detail/${data.id}`} target="_blank" onClick={() => onClick()}>
            {data.title}
          </a>
          <div className="f-r t-15 t-s-14">
            <span className="m-r-1">{data.question.difficult}</span>
            <span className="m-r-1">用时: {formatSeconds(data.totalTime / data.totalNumber)}</span>
            <span className="m-r-1">{formatPercent(data.totalCorrect, data.totalNumber, false)}</span>
            <span>收藏 {data.collectNumber || 0}</span>
          </div>
        </div>
        <div className="t-1 p-20" ><Typography.Paragraph ellipsis={{ rows: 3, expandable: false }}><div className="search-content" dangerouslySetInnerHTML={{ __html: data.question.description }} /></Typography.Paragraph></div>
      </div>
    );
  }
}