import {
  computed,
  defineComponent,
  onMounted,
  reactive,
  ref,
  toRef,
  TransitionGroup,
  watch
} from 'vue';
import styles from './index.module.less';
import iconChange from '../images/icon-change.png';
import iconDownload from '../images/icon-download.png';
import iconStaff from '../images/icon-staff.png';
import staff from '../images/staff/staff.png'
import staffActive from '../images/staff/staff-active.png'
import first from '../images/staff/first.png'
import firstActive from '../images/staff/first-active.png'
import fixed from '../images/staff/fixed.png'
import fixedActive from '../images/staff/fixed-active.png'
import { Button, NoticeBar, Popover, showLoadingToast, showToast } from 'vant';
import { state } from '@/state';
import {
  getInstrumentName,
  sortMusical,
  vaildMusicScoreUrl
} from '@/helpers/utils';
import { storage } from '@/helpers/storage';
import { ACCESS_TOKEN } from '@/store/mutation-types';
import { promisefiyPostMessage } from '@/helpers/native-message';
import html2canvas from 'html2canvas';
import { addWatermark, convasToImg } from '@/views/co-ai/imageFunction';

export default defineComponent({
  name: 'music-detail',
  props: {
    item: {
      type: Object,
      default: () => ({})
    }
  },
  emits: ['handleGoto'],
  setup(props, { emit }) {
    const item = toRef(props.item);
    const data = reactive({
      musicPdfUrl: '',
      iframeSrc: '',
      selectMusicInstrumentIndex: 0,
      popoverShow: false,
      showChangeVoice: false,
      /** 显示哪种曲谱 */
      showMusicImg: 'staff' as 'staff' | 'first' | 'fixed',
      trackList: [] as any, // 可筛选的分轨信息
      showTransBtn: true // 是否显示转谱按钮
    });
    const downRef = ref();

    watch(
      () => props.item,
      () => {
        item.value = props.item;
        data.musicPdfUrl = ''
        data.iframeSrc = ''
        console.log(props.item, 'item')
        __init();
      }
    );

    const _actions = computed(() => {
      const details = item.value;
      let { scoreType, isConvertibleScore } = details || {};

      let action: any[] = [
        {
          value: 'first',
          text: '首调',
          icon: first
        },
        {
          value: 'fixed',
          text: '固定调',
          icon: fixed
        }
      ];

      if (
        !(
          ['JIAN', 'FIRST'].includes(scoreType) && isConvertibleScore === false
        ) &&
        !(isConvertibleScore === undefined || isConvertibleScore === null)
      ) {
        action.unshift({
          value: 'staff',
          text: '五线谱',
          icon: staff
        });
      }
      action.forEach((item: any) => {
        if(item.value === data.showMusicImg) {
          if(item.value === 'first') {
            item.icon = firstActive
          } else if(item.value == 'fixed') {
            item.icon = fixedActive
          } else if(item.value === 'staff') {
            item.icon = staffActive
          }
        }
      })

      return action.map((item, index) => {
        return {
          ...item,
          color:
            data.showMusicImg === item.value ? 'var(--van-primary-color)' : '',
          className: data.showMusicImg === item.value ? 'fontBlod' : ''
        };
      });
    });

    const trackList = computed(() => {
      return data.trackList.map((item: any) => {
        return {
          ...item,
          color:
            data.selectMusicInstrumentIndex === item.value ? 'var(--van-primary-color)' : '',
          className: data.selectMusicInstrumentIndex === item.value ? 'fontBlod' : ''
        };
      });
    })

    /** 保存图片 */
    const handleSave = async () => {
      if (data.musicPdfUrl) {
        const songName = item.value?.musicSheetName;
        promisefiyPostMessage({
          api: 'downloadFile',
          content: {
            downloadUrl: data.musicPdfUrl,
            fileName: songName
          }
        });
        return;
      }
      showLoadingToast({ message: '正在保存', duration: 0 });
      try {
        html2canvas(downRef.value, {
          backgroundColor: '#fff',
          allowTaint: true,
          useCORS: true
        })
          .then(async canvas => {
            // 添加水印
            const waterCanvasImg = await addWatermark(canvas);
            // canvas转图片
            const dataURL = await convasToImg(waterCanvasImg);
            console.log(dataURL, 'dataURL');
            setTimeout(() => {
              showToast('已保存到相册');
            }, 500);
            await promisefiyPostMessage({
              api: 'savePicture',
              content: {
                base64: dataURL
              }
            });
          })
          .catch(() => {
            setTimeout(() => {
              showToast('保存失败');
            }, 500);
          });
      } catch (error) {
        setTimeout(() => {
          showToast('保存失败');
        }, 500);
      }
    };

    // 根据musicSheetType返回的值，判断是否显示切换声轨按钮
    const isEnsemble = computed(() => {
      if (item.value) {
        const musicSheetType = item.value?.musicSheetType;
        if (musicSheetType === 'SINGLE') {
          return false;
        } else {
          return true;
        }
      } else {
        return false;
      }
    });

    // 判断 值当前有没有图片
    const isMusicImg = computed(() => {
      const musicsData = item.value;
      if (data.showMusicImg === 'first' && musicsData?.musicFirstImg) {
        return true;
      }
      if (data.showMusicImg === 'fixed' && musicsData?.musicJianImg) {
        return true;
      }
      if (musicsData?.musicImg) {
        return true;
      }
      return false;
    });

    // 判断是否可转谱 - 为空也可以转谱
    const checkConverTible = (isConvertibleScore: any, scoreType: string) => {
      if (
        isConvertibleScore ||
        isConvertibleScore === '' ||
        isConvertibleScore === undefined ||
        isConvertibleScore === null ||
        (['JIAN', 'FIRST'].includes(scoreType) && !isConvertibleScore)
      ) {
        return true;
      } else {
        return false;
      }
    };

    // 解析xml，获取分轨信息
    const analyzeXml = async () => {
      const details = item.value;
      // console.log(details?.musicSheetType, 'details?.musicSheetType');
      if (details?.musicSheetType === 'CONCERT') {
        if (details.xmlFileUrl) {
          const res = await fetch(details.xmlFileUrl).then(response =>
            response.text()
          );
          filterTracks(res);
        }
      } else {
        // showMusicImg: 'first' as 'staff' | 'first' | 'fixed',
        const { scoreType, isConvertibleScore } = details || {};
        let musicImgType: 'staff' | 'first' | 'fixed' = 'first';
        musicImgType =
          scoreType === 'STAVE'
            ? 'staff'
            : scoreType === 'JIAN'
            ? 'fixed'
            : scoreType === 'FIRST'
            ? 'first'
            : 'first';
        data.showMusicImg = musicImgType;
        data.showTransBtn = checkConverTible(isConvertibleScore, scoreType);
      }
    };

    /** 获取分轨名称 */
    const getInstrumentNameCode = (instruments: any, name = '') => {
      name = name.toLocaleLowerCase().replace(/ /g, '').replace(/\d*/gi, '');
      if (!name) return '';
      for (let key of instruments) {
        const _key = key.toLocaleLowerCase().replace(/ /g, '');
        // if (_key.includes(name)) {
        //   return key
        // }
        if (_key === name) {
          return _key;
        }
      }
      // for (let key of instruments) {
      //   const _key = key.toLocaleLowerCase().replace(/ /g, '')
      //   if (name.includes(_key)) {
      //     return key
      //   }
      // }
      return '';
    };
    // 通过乐器编码返回乐器编号
    const instrumentCodeToInstrumentId = (
      subjectList: Array<any>,
      code: string
    ) => {
      const codeIdMap = new Map<string, []>() as any;
      const codeMapKeys: string[] = [];
      subjectList.forEach((data: any) => {
        if (data.enableFlag) {
          const codes = data.code?.split(/[,，]/);
          codes.forEach((code: string) => {
            let codeTemp = code?.replace(/ /g, '').toLowerCase();
            codeMapKeys.push(codeTemp);
            if (codeIdMap.has(codeTemp)) {
              codeIdMap.get(codeTemp).push(data.id + '');
            } else {
              const arr = [] as any;
              arr.push(data.id + '');
              codeIdMap.set(codeTemp, arr);
            }
          });
        }
      });

      if (!code) {
        return '';
      }
      code = code && code?.replace(/ /g, '').toLowerCase();
      const tempCode = getInstrumentNameCode(codeMapKeys, code);
      if (codeIdMap.has(tempCode)) {
        const result = codeIdMap.get(tempCode);
        // console.log('result:', result);
        return result[0] || '';
      }
      return '';
    };

    // 初始化编号
    const initUserDefaultInstrument = () => {
      const userInstrumentId = state.user.data.instrumentId;
      const item = data.trackList.find(
        (track: any) => track.instrumentId === userInstrumentId + ''
      );
      data.selectMusicInstrumentIndex = item ? item.value : 0;
    };

    // 过滤出能切换的分轨
    const filterTracks = (xml: any) => {
      const xmlParse = new DOMParser().parseFromString(xml, 'text/xml');
      const partList: any =
        xmlParse
          .getElementsByTagName('part-list')?.[0]
          ?.getElementsByTagName('score-part') || [];
      const partListNames = Array.from(partList).map(
        (item: any) =>
          item.getElementsByTagName('part-name')?.[0]?.textContent?.trim() ||
          item.getAttribute('id') ||
          ''
      );
      const parts: any = xmlParse.getElementsByTagName('part');

      /** 第一分谱如果是约定的配置分谱则跳过 */
      if (partListNames[0]?.toLocaleUpperCase?.() === 'COMMON') {
        partListNames.shift();
      }
      // 根据后台已选择的分轨筛选出能切换的声轨
      const multiTracksSelection = item.value?.multiTracksSelection;
      const canSelectTracks = multiTracksSelection
        ? multiTracksSelection?.split(',')
        : [];
      const musicalInstruments = item.value?.musicalInstruments || [];
      const arr = partListNames
        .map((item: any, index: number) => {
          // 该声轨能否被选
          const canselect =
            canSelectTracks.length == 0 || canSelectTracks.includes(item)
              ? true
              : false;

          const instrumentName = getInstrumentName(item);
          const instrumentId = instrumentCodeToInstrumentId(
            musicalInstruments,
            item
          );
          const sortId = sortMusical(instrumentName, index);
          return {
            text: item + (instrumentName ? `(${instrumentName})` : ''),
            value: index,
            instrumentId,
            sortId,
            canselect,
            track: item
          };
        })
        .filter((item: any) => item.canselect);
      //.sort((a: any, b: any) => a.sortId - b.sortId);
      data.trackList = arr;

      // 是否显示总谱
      const selectMusic = item.value;
      if (selectMusic) {
        const musicalInstruments = selectMusic.musicalInstruments || [];
        if (selectMusic.isScoreRender) {
          data.trackList.unshift({
            text: '总谱',
            value: 999,
            sortId: 0,
            canselect: true,
            track: 999
          });

          if (selectMusic.defaultScoreRender) {
            data.selectMusicInstrumentIndex = 999;
          } else {
            initUserDefaultInstrument();
          }
        } else {
          initUserDefaultInstrument();
        }
      }

      const details = item.value;
      const { scoreType, isConvertibleScore } = details || {};
      let musicImgType: 'staff' | 'first' | 'fixed' = 'first';
      musicImgType =
        scoreType === 'STAVE'
          ? 'staff'
          : scoreType === 'JIAN'
          ? 'fixed'
          : scoreType === 'FIRST'
          ? 'first'
          : 'first';
      data.showMusicImg = musicImgType;
      data.showTransBtn = checkConverTible(isConvertibleScore, scoreType);
    };

    const musicIframeLoad = () => {
      const token = storage.get(ACCESS_TOKEN);
      const details = item.value;

      if (!details?.id) {
        data.iframeSrc = '';
        return;
      }
      // 如果在配置里面匹配不到，则默认显示五线谱
      const musicRenderType =
        data.showMusicImg === 'first'
          ? 'firstTone'
          : data.showMusicImg === 'fixed'
          ? 'fixedTone'
          : data.showMusicImg === 'staff'
          ? 'staff'
          : 'staff';

      // pdf
      const musicSheetType = details?.musicSheetType;
      let musicPdfUrl = '';

      if (
        musicSheetType === 'SINGLE' ||
        data.selectMusicInstrumentIndex === 999
      ) {
        if (data.showMusicImg === 'first') {
          musicPdfUrl = details.firstPdfUrl;
        } else if (data.showMusicImg === 'fixed') {
          musicPdfUrl = details.jianPdfUrl;
        } else {
          musicPdfUrl = details.musicPdfUrl;
        }
      } else {
        const trackList = data.trackList || [];
        const selectTrack = trackList.find(
          (item: any) => item.value === data.selectMusicInstrumentIndex
        );
        const background = details.background || [];
        const selectItem = background.find(
          (item: any) =>
            item.track === selectTrack?.track && item.audioPlayType === 'PLAY'
        );
        if (selectItem) {
          if (data.showMusicImg === 'first') {
            musicPdfUrl = selectItem.firstPdfUrl;
          } else if (data.showMusicImg === 'fixed') {
            musicPdfUrl = selectItem.jianPdfUrl;
          } else {
            musicPdfUrl = selectItem.musicPdfUrl;
          }
        }
      }
      data.musicPdfUrl = musicPdfUrl;
      if (musicPdfUrl) {
        // data.iframeSrc = `/pdf/web/viewer.html?file=${encodeURIComponent(data.musicPdfUrl)}&t=${Date.now()}`;
        data.iframeSrc = `${location.origin}${
          location.pathname
        }pdf/web/viewer.html?file=${encodeURIComponent(
          data.musicPdfUrl
        )}&t=${Date.now()}`;
      } else {
        // const origin = /(localhost|192)/.test(location.host)
        // ? 'https://test.lexiaoya.cn'
        // : location.origin;
        // data.iframeSrc = `${origin}/instrument/?id=${details.id}&modelType=practise&modeType=json&Authorization=${token}&isPreView=true&part-index=${data.selectMusicInstrumentIndex}&musicRenderType=${musicRenderType}`;
        data.iframeSrc = `${vaildMusicScoreUrl()}/instrument/?id=${
          details?.id
        }&modelType=practise&modeType=json&Authorization=${token}&isPreView=true&part-index=${
          data.selectMusicInstrumentIndex
        }&musicRenderType=${musicRenderType}&zoom=0.6`;
      }

      // console.log('地址', data.iframeSrc, isEnsemble.value , data.musicPdfUrl , !isMusicImg.value);
    };

    const __init = async () => {
      await analyzeXml();
      musicIframeLoad();
    };


    /** 去云练习 */
    const handleGoto = () => {
      emit('handleGoto', item.value, data.showMusicImg, data.selectMusicInstrumentIndex)
    };

    onMounted(() => {
      __init();
    });
    return () => (
      <div class={styles.musicDetail}>
        <div class={styles.musicContainer}>
          <div class={styles.container}>
            <div
              class={styles['right-musicName']}
              style={{
                opacity: !data.musicPdfUrl ? '1' : '0',
                height: !data.musicPdfUrl ? 'auto' : '0'
              }}>
                <NoticeBar
                    text={item.value?.musicSheetName}
                    class={styles.noticeBar}
                    background="none"
                  />
            </div>
            {data.iframeSrc &&
            (isEnsemble.value || data.musicPdfUrl || !isMusicImg.value) ? (
              <div class={styles.iframeSection}>
                <>
                  {item.value?.id ? (
                    data.musicPdfUrl ? (
                      <iframe
                        id="staffIframeRef"
                        style={{
                          width: '100%',
                          paddingTop: '4px'
                          // opacity: loading.value ? 0 : 1
                        }}
                        src={data.iframeSrc}></iframe>
                    ) : (
                      <iframe
                        id="staffIframeRef"
                        style={{
                          width: '100%'
                          // opacity: loading.value ? 0 : 1
                        }}
                        src={data.iframeSrc}></iframe>
                    )
                  ) : (
                    ''
                  )}
                </>
              </div>
            ) : (
              <div class={styles.imgSection}>
                {data.showMusicImg === 'first' ? (
                  <>
                    {item.value?.musicFirstImg
                      ?.split(',')
                      .map((item: any, index: number) => {
                        return (
                          <img
                            class={styles.staff}
                            src={item}
                            key={item}
                            crossorigin="anonymous"
                          />
                        );
                      })}
                  </>
                ) : data.showMusicImg === 'fixed' ? (
                  <>
                    <TransitionGroup name="van-fade">
                      {item.value?.musicJianImg
                        ?.split(',')
                        .map((item: any, index: number) => {
                          return (
                            <img
                              class={styles.staff}
                              src={item}
                              key={item}
                              crossorigin="anonymous"
                            />
                          );
                        })}
                    </TransitionGroup>
                  </>
                ) : (
                  <>
                    {item.value?.musicImg
                      ?.split(',')
                      .map((item: any, index: number) => {
                        return (
                          <img
                            class={styles.staff}
                            src={item + '?v=' + Date.now()}
                            key={item}
                            crossorigin="anonymous"
                          />
                        );
                      })}
                  </>
                )}
              </div>
            )}
          </div>


          <div class={styles.container} ref={downRef} style={{
              display: 'block',
              height: 'auto',
            }}>
            <div
              class={styles['right-musicName']}
              style={{
                opacity: !data.musicPdfUrl ? '1' : '0',
                height: !data.musicPdfUrl ? 'auto' : '0'
              }}>
                  <div class={styles.name}>{item.value?.musicSheetName}</div>
              </div>
              <div>
                {data.showMusicImg === 'first' ? (
                  <>
                    {item.value?.musicFirstImg
                      ?.split(',')
                      .map((item: any, index: number) => {
                        return (
                          <img
                            class={styles.staff}
                            src={item}
                            key={item}
                            crossorigin="anonymous"
                          />
                        );
                      })}
                  </>
                ) : data.showMusicImg === 'fixed' ? (
                  <>
                    <TransitionGroup name="van-fade">
                      {item.value?.musicJianImg
                        ?.split(',')
                        .map((item: any, index: number) => {
                          return (
                            <img
                              class={styles.staff}
                              src={item}
                              key={item}
                              crossorigin="anonymous"
                            />
                          );
                        })}
                    </TransitionGroup>
                  </>
                ) : (
                  <>
                    {item.value?.musicImg
                      ?.split(',')
                      .map((item: any, index: number) => {
                        return (
                          <img
                            class={styles.staff}
                            src={item + '?v=' + Date.now()}
                            key={item}
                            crossorigin="anonymous"
                          />
                        );
                      })}
                  </>
                )}
              </div>
          </div>
        </div>
        <div class={styles.btnGroup}>
          <div class={styles.operation}>
            {isEnsemble.value && (
              <Popover
                v-model:show={data.showChangeVoice}
                class={'transferStaff transferStaffSection'}
                actions={trackList.value}
                placement="top-start"
                onSelect={(item: any) => {
                  // console.log(item, 'item')
                  data.selectMusicInstrumentIndex = item.value
                  data.showChangeVoice = false;
                  musicIframeLoad();
                }}>
                {{
                  reference: () => (
                    <div class={[styles.item, styles.itemPopover]}>
                      <img src={iconChange} class={styles.icon} />
                      <span>声部</span>
                    </div>
                  )
                }}
              </Popover>
            )}
            {data.showTransBtn && (
              <Popover
                v-model:show={data.popoverShow}
                class={'transferStaff'}
                actions={_actions.value}
                placement="top-start"
                onSelect={(item: any) => {
                  data.showMusicImg = item.value;
                  data.popoverShow = false;
                  musicIframeLoad();
                }}>
                {{
                  reference: () => (
                    <div class={[styles.item, styles.itemPopover]}>
                      <img src={iconStaff} class={styles.icon} />
                      <span>转谱</span>
                    </div>
                  )
                }}
              </Popover>
            )}
            {!isEnsemble.value && (isMusicImg.value || data.musicPdfUrl) && (
              <div class={styles.item} onClick={handleSave}>
                <img src={iconDownload} class={styles.icon} />
                <span>下载</span>
              </div>
            )}
          </div>
          <Button round class={styles.goBtn} onClick={handleGoto}>
            立即练习
          </Button>
        </div>
      </div>
    );
  }
});