-- 0003_search.sql — full-text search over items.
--
-- FTS5 with an external content table: the index stores no copy of the text,
-- it points back at media_items, so the database does not double in size.
-- Triggers keep the index in sync for every write path, including the scanner's
-- bulk inserts and any future module's.

CREATE VIRTUAL TABLE media_search USING fts5(
    title,
    path,
    content='media_items',
    content_rowid='id',
    tokenize='unicode61 remove_diacritics 2'
);

-- Populate the index from any rows that already exist.
INSERT INTO media_search(media_search) VALUES ('rebuild');

CREATE TRIGGER media_items_ai AFTER INSERT ON media_items BEGIN
    INSERT INTO media_search(rowid, title, path) VALUES (new.id, new.title, new.path);
END;

CREATE TRIGGER media_items_ad AFTER DELETE ON media_items BEGIN
    INSERT INTO media_search(media_search, rowid, title, path)
    VALUES ('delete', old.id, old.title, old.path);
END;

CREATE TRIGGER media_items_au AFTER UPDATE ON media_items BEGIN
    INSERT INTO media_search(media_search, rowid, title, path)
    VALUES ('delete', old.id, old.title, old.path);
    INSERT INTO media_search(rowid, title, path) VALUES (new.id, new.title, new.path);
END;