dtoro
8c2526d982
Replace the legacy mule-image backend with PhotoPrism plus a thin SvelteKit client and a Node sidecar for endpoints PhotoPrism doesn't expose (file rename), and add a two-phase migrator (metadata via PUT, heaps → albums) for the existing Postgres library. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
91 lines
3.0 KiB
JavaScript
91 lines
3.0 KiB
JavaScript
#!/usr/bin/env node
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// Dumps a legacy mule-image Postgres into the snapshot JSON shape `run.mjs`
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// consumes. Intended to run on the homecloud server where the legacy stack
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// lives (since `DATABASE_URL` points at the in-network Postgres there).
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//
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// DATABASE_URL=postgres://mulita:mulita@db:5432/mulita \
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// node migrate/legacy_export.mjs > snapshot.json
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//
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// Uses the `pg` npm package which the legacy mule-image already ships in
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// its backend image; if you're running this from a separate workstation,
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// `npm install pg` first.
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import pg from 'pg';
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import process from 'node:process';
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const DATABASE_URL = process.env.DATABASE_URL;
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if (!DATABASE_URL) {
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console.error('DATABASE_URL required');
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process.exit(2);
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}
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const client = new pg.Client({ connectionString: DATABASE_URL });
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await client.connect();
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// ── photos ───────────────────────────────────────────────────────────────────
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// Mule-image's photos table is the source of all per-file metadata. The
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// migrator only reads fields that have a clean PhotoPrism mapping; the
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// rest (auto-tags, ML-derived fields, etc.) are skipped per the merge plan.
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const photoRows = await client.query(`
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SELECT
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p.filepath,
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p.user_title,
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p.user_notes,
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p.rating,
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p.is_picked,
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p.is_discarded,
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p.is_hidden,
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p.taken_at,
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COALESCE(
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array_agg(t.name) FILTER (WHERE t.name IS NOT NULL),
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'{}'
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) AS tags
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FROM photos p
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LEFT JOIN photo_tags pt ON pt.photo_id = p.id
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LEFT JOIN tags t ON t.id = pt.tag_id
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WHERE p.is_active IS NULL OR p.is_active = true
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GROUP BY p.id
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`);
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// ── heaps + memberships ─────────────────────────────────────────────────────
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const heapRows = await client.query(`
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SELECT h.id, h.name FROM heaps h WHERE h.is_active = true
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`);
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const heapMembers = await client.query(`
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SELECT hp.heap_id, p.filepath
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FROM heap_photos hp
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JOIN photos p ON p.id = hp.photo_id
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`);
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const membersByHeap = new Map();
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for (const r of heapMembers.rows) {
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if (!membersByHeap.has(r.heap_id)) membersByHeap.set(r.heap_id, []);
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membersByHeap.get(r.heap_id).push(r.filepath);
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}
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// ── assemble ─────────────────────────────────────────────────────────────────
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const snapshot = {
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photos: photoRows.rows.map((r) => ({
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filepath: r.filepath,
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user_title: r.user_title,
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user_notes: r.user_notes,
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rating: r.rating,
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is_picked: Boolean(r.is_picked),
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is_discarded: Boolean(r.is_discarded),
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is_hidden: Boolean(r.is_hidden),
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taken_at: r.taken_at ? new Date(r.taken_at).toISOString() : null,
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tags: r.tags ?? []
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})),
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heaps: heapRows.rows.map((h) => ({
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name: h.name,
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photo_filepaths: membersByHeap.get(h.id) ?? []
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}))
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};
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process.stdout.write(JSON.stringify(snapshot, null, 2));
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await client.end();
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