-- 0004_metadata.sql — record which providers have been tried for an item.
--
-- provider_ids records the match that was chosen. This table records the
-- attempt, including failures, so a rescan or a restart does not re-hammer a
-- rate-limited API for an item that will never match.

CREATE TABLE metadata_fetch (
    item_id    INTEGER NOT NULL REFERENCES media_items(id) ON DELETE CASCADE,
    provider   TEXT    NOT NULL,
    status     TEXT    NOT NULL,               -- ok | notfound | error
    detail     TEXT    NOT NULL DEFAULT '',
    fetched_at TEXT    NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%fZ','now')),
    PRIMARY KEY (item_id, provider)
);

CREATE INDEX idx_metadata_fetch_item ON metadata_fetch(item_id);