116 lines
3.5 KiB
TypeScript
116 lines
3.5 KiB
TypeScript
/**
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* Learns where items get moved and suggests target pages for future moves.
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* Stores patterns in localStorage:
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* - By interaction type (e.g. "clothing" → page #42)
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* - By item name prefix (e.g. "rare_" → page #15)
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* - Recent moves (last 10)
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*
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* All suggestions are non-forced — just ranked higher in the combobox.
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*/
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const STORAGE_KEY = "catalog_move_suggestions";
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interface MoveRecord {
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targetPageId: number;
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count: number;
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}
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interface SuggestionStore {
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/** interaction type → target pages with count */
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byType: Record<string, MoveRecord[]>;
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/** item name prefix (first segment before _) → target pages with count */
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byPrefix: Record<string, MoveRecord[]>;
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/** last N recent targets */
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recent: number[];
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}
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function load(): SuggestionStore {
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try {
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const raw = localStorage.getItem(STORAGE_KEY);
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if (raw) return JSON.parse(raw);
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} catch {}
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return { byType: {}, byPrefix: {}, recent: [] };
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}
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function save(store: SuggestionStore) {
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try {
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localStorage.setItem(STORAGE_KEY, JSON.stringify(store));
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} catch {}
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}
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function extractPrefix(itemName: string): string {
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if (!itemName) return "";
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const idx = itemName.indexOf("_");
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return idx > 0 ? itemName.substring(0, idx).toLowerCase() : itemName.toLowerCase();
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}
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function incrementRecord(records: MoveRecord[], targetPageId: number): MoveRecord[] {
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const existing = records.find((r) => r.targetPageId === targetPageId);
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if (existing) {
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return records
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.map((r) => (r.targetPageId === targetPageId ? { ...r, count: r.count + 1 } : r))
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.sort((a, b) => b.count - a.count);
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}
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return [...records, { targetPageId, count: 1 }].sort((a, b) => b.count - a.count).slice(0, 10);
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}
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/**
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* Record a move for learning. Call this after successfully moving an item.
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*/
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export function recordMove(opts: { interactionType?: string; itemName?: string; targetPageId: number }) {
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const store = load();
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const { interactionType, itemName, targetPageId } = opts;
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if (interactionType) {
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const key = interactionType.toLowerCase();
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store.byType[key] = incrementRecord(store.byType[key] || [], targetPageId);
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}
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const prefix = extractPrefix(itemName ?? "");
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if (prefix && prefix.length > 1) {
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store.byPrefix[prefix] = incrementRecord(store.byPrefix[prefix] || [], targetPageId);
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}
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// Recent (deduplicate, keep last 10)
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store.recent = [targetPageId, ...store.recent.filter((id) => id !== targetPageId)].slice(0, 10);
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save(store);
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}
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/**
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* Get suggested page IDs for moving an item, ranked by relevance.
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* Returns unique page IDs ordered by best match.
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*/
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export function getSuggestions(opts: { interactionType?: string; itemName?: string }): number[] {
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const store = load();
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const { interactionType, itemName } = opts;
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const scores = new Map<number, number>();
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// By interaction type (highest weight)
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if (interactionType) {
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const records = store.byType[interactionType.toLowerCase()] || [];
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for (const r of records) {
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scores.set(r.targetPageId, (scores.get(r.targetPageId) ?? 0) + r.count * 3);
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}
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}
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// By name prefix
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const prefix = extractPrefix(itemName ?? "");
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if (prefix && prefix.length > 1) {
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const records = store.byPrefix[prefix] || [];
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for (const r of records) {
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scores.set(r.targetPageId, (scores.get(r.targetPageId) ?? 0) + r.count * 2);
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}
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}
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// Recent (lowest weight)
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for (let i = 0; i < store.recent.length; i++) {
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const id = store.recent[i];
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scores.set(id, (scores.get(id) ?? 0) + (10 - i));
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}
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return Array.from(scores.entries())
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.sort((a, b) => b[1] - a[1])
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.map(([id]) => id);
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}
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