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fix(views/library): better lyric-picking logic (#1143)

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* fix(views/library): better lyric-picking logic

* feat(views/library): filter out lines with "作詞" and "作曲" included
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pan93412 2021-12-29 07:37:58 +08:00 committed by GitHub
parent f5cdbea379
commit d153810205
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1 changed files with 34 additions and 11 deletions
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45
src/views/library.vue
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@ -183,6 +183,16 @@ import CoverRow from '@/components/CoverRow.vue';
import SvgIcon from '@/components/SvgIcon.vue';
import MvRow from '@/components/MvRow.vue';
/**
* Pick the lyric part from a string formed in `[timecode] lyric`.
*
* @param {string} rawLyric The raw lyric string formed in `[timecode] lyric`
* @returns {string} The lyric part
*/
function extractLyricPart(rawLyric) {
return rawLyric.split(']')[1].trim();
}
export default {
name: 'Library',
components: { SvgIcon, CoverRow, TrackList, MvRow, ContextMenu },
@ -196,18 +206,31 @@ export default {
},
computed: {
...mapState(['data', 'liked']),
/**
* @returns {string[]}
*/
pickedLyric() {
if (this.lyric === undefined) return '';
let lyric = this.lyric.split('\n');
let lineIndex = randomNum(0, lyric.length - 1);
while (lineIndex + 4 > lyric.length) {
lineIndex = randomNum(0, lyric.length - 1);
}
return [
lyric[lineIndex].split(']')[1],
lyric[lineIndex + 1].split(']')[1],
lyric[lineIndex + 2].split(']')[1],
];
/** @type {string?} */
const lyric = this.lyric;
// Returns [] if we got no lyrics.
if (!lyric) return [];
const lyricLine = lyric
.split('\n')
.filter(line => !line.includes('作词') && !line.includes('作曲'));
// Pick 3 or fewer lyrics based on the lyric lines.
const lyricsToPick = Math.min(lyricLine.length, 3);
// The upperbound of the lyric line to pick
const randomUpperBound = lyricLine.length - lyricsToPick;
const startLyricLineIndex = randomNum(0, randomUpperBound - 1);
// Pick lyric lines to render.
return lyricLine
.slice(startLyricLineIndex, startLyricLineIndex + lyricsToPick)
.map(extractLyricPart);
},
playlistFilter() {
return this.data.libraryPlaylistFilter || 'all';