fc5: export script for FabledCurator migration — tags + image_artist/tag/series via sha256

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

scripts/export_for_fabledcurator.py

@@ -0,0 +1,133 @@
+#!/usr/bin/env python
+"""Export IR's config (tags, artist assignments, tag associations, series pages)
+as a single JSON file that FabledCurator's FC-5 ingest can read.
+
+One-shot tool. Excludes:
+  - kind='artist' tags (FC stores artist as a row, not a tag — these become
+    image_artist_assignments keyed by sha256).
+  - kind='post' tags (FC has Post rows; scheduler refills going forward).
+  - archive_record, post_metadata, ML predictions/embeddings, suggestion data
+    (FC handles all of these via its own mechanisms — see FC-5 design doc).
+
+All foreign keys collapsed to natural keys so the output is portable:
+image_record.id -> image_record.hash (sha256); tag.id -> (tag.name, tag.kind).
+
+Usage:
+    python scripts/export_for_fabledcurator.py > ir-export.json
+"""
+from __future__ import annotations
+
+import json
+import sys
+from datetime import UTC, datetime
+
+# Bootstrap IR's app context so we can use its SQLAlchemy session.
+sys.path.insert(0, ".")
+from app import create_app, db  # noqa: E402
+from app.models import ImageRecord, SeriesPage, Tag, image_tags  # noqa: E402
+
+_SKIP_KINDS = frozenset({"artist", "post"})
+
+
+def _export_tags():
+    """All tags except artist + post kinds, with fandom_name resolved."""
+    out = []
+    for tag in Tag.query.all():
+        if tag.kind in _SKIP_KINDS:
+            continue
+        fandom_name = None
+        if tag.fandom_id:
+            f = Tag.query.get(tag.fandom_id)
+            if f is not None:
+                fandom_name = f.name
+        out.append({
+            "name": tag.name,
+            "kind": tag.kind or "general",
+            "fandom_name": fandom_name,
+        })
+    return out
+
+
+def _export_image_artist_assignments():
+    """For each image, find its artist:Name tag (if any) and emit
+    {sha256, artist_name}."""
+    out = []
+    artist_tag_ids = {
+        t.id: t.name for t in Tag.query.filter_by(kind="artist").all()
+    }
+    if not artist_tag_ids:
+        return out
+    # Join image_record + image_tags to find which images have artist tags.
+    q = (
+        db.session.query(ImageRecord.hash, Tag.name)
+        .join(image_tags, image_tags.c.image_id == ImageRecord.id)
+        .join(Tag, Tag.id == image_tags.c.tag_id)
+        .filter(Tag.kind == "artist")
+    )
+    for sha, artist_name in q.all():
+        out.append({"sha256": sha, "artist_name": artist_name})
+    return out
+
+
+def _export_image_tag_associations():
+    """For each (image, tag) where tag.kind not in _SKIP_KINDS, emit
+    {sha256, tag_name, tag_kind, fandom_name}."""
+    out = []
+    q = (
+        db.session.query(ImageRecord.hash, Tag.name, Tag.kind, Tag.fandom_id)
+        .join(image_tags, image_tags.c.image_id == ImageRecord.id)
+        .join(Tag, Tag.id == image_tags.c.tag_id)
+        .filter(~Tag.kind.in_(_SKIP_KINDS))
+    )
+    fandom_name_cache: dict[int, str] = {}
+    for sha, tag_name, tag_kind, fandom_id in q.all():
+        fandom_name = None
+        if fandom_id:
+            if fandom_id not in fandom_name_cache:
+                f = Tag.query.get(fandom_id)
+                fandom_name_cache[fandom_id] = f.name if f else None
+            fandom_name = fandom_name_cache[fandom_id]
+        out.append({
+            "sha256": sha,
+            "tag_name": tag_name,
+            "tag_kind": tag_kind or "general",
+            "fandom_name": fandom_name,
+        })
+    return out
+
+
+def _export_series_pages():
+    """For each SeriesPage, emit {sha256, series_tag_name, page_number}."""
+    out = []
+    q = (
+        db.session.query(ImageRecord.hash, Tag.name, SeriesPage.page_number)
+        .join(SeriesPage, SeriesPage.image_id == ImageRecord.id)
+        .join(Tag, Tag.id == SeriesPage.series_tag_id)
+    )
+    for sha, series_tag_name, page_number in q.all():
+        out.append({
+            "sha256": sha,
+            "series_tag_name": series_tag_name,
+            "page_number": page_number,
+        })
+    return out
+
+
+def main() -> None:
+    app = create_app()
+    with app.app_context():
+        export = {
+            "source_app": "imagerepo",
+            "schema_version": 1,
+            "exported_at": datetime.now(UTC).isoformat(),
+            "tags": _export_tags(),
+            "image_artist_assignments": _export_image_artist_assignments(),
+            "image_tag_associations": _export_image_tag_associations(),
+            "series_pages": _export_series_pages(),
+        }
+    json.dump(export, sys.stdout, indent=2)
+    sys.stdout.write("\n")
+
+
+if __name__ == "__main__":
+    main()