feat: add support for series

editor/public/static/js/metadata.mjs

@@ -0,0 +1,85 @@
+export default class Metadata {
+    constructor(data) {
+        this.data = data
+    }
+
+    getData() {
+        return this.data
+    }
+}
+
+export class MediaMetadata extends Metadata {
+    constructor(data) {
+        super(data)
+    }
+}
+
+export class EpisodeMetadata extends MediaMetadata {
+    REGEXP = /s(?<season>\d+)e(?<episode>\d+)/i
+
+    /**
+     * 
+     * @param {object} data 
+     * @param {string} episodeKey 
+     */
+    constructor(data, episodeKey) {
+        super(data)
+        this.key = episodeKey
+
+        let m = this.key.match(this.REGEXP) ?? this.data.filename.match(this.REGEXP)
+        this.season = "xx"
+        this.episode = "xx"
+        if (m) {
+            this.season = m.groups.season
+            this.episode = m.groups.episode
+        }
+    }
+}
+
+export class SeriesMetadata extends Metadata {
+    constructor(data) {
+        super(data)
+        const episodeKeys = Object.keys(data).sort()
+        this.episodes = episodeKeys.map(key => {
+            return new EpisodeMetadata(data[key], key)
+        })
+
+        this.episodeIdx = 0
+    }
+
+    getCurrentEpisode() {
+        return this.episodes[this.episodeIdx]
+    }
+
+    getData() {
+        return this.getCurrentEpisode().getData()
+    }
+
+    prev() {
+        if (this.episodeIdx === 0) {
+            return false
+        }
+        this.episodeIdx -= 1
+        return true
+    }
+
+    next() {
+        if (this.episodeIdx === this.episodes.length - 1) {
+            return false
+        }
+        this.episodeIdx += 1
+        return true
+    }
+}
+
+/**
+ * 
+ * @param {object} data 
+ * @returns {Metadata}
+ */
+export function loadMetadata(data) {
+    if ("filename" in data) {
+        return new MediaMetadata(data)
+    }
+    return new SeriesMetadata(data)
+}