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SQL

-- M5a: Lidarr integration foundation. Two tables:
--
-- lidarr_config — singleton (CHECK id=1) holding the operator's Lidarr
-- connection. enabled=false is the unconfigured state.
--
-- lidarr_requests — per-request lifecycle row created by users at
-- /discover, transitioned by admin at /admin/requests, and matched
-- back to library tracks by the reconciler worker. Three matched_*_id
-- FKs (one per kind) instead of polymorphic — clean SQL, ON DELETE
-- SET NULL preserves audit even if the matched track is later removed.
CREATE TABLE lidarr_config (
id smallint PRIMARY KEY DEFAULT 1 CHECK (id = 1),
enabled boolean NOT NULL DEFAULT false,
base_url text,
api_key text,
default_quality_profile_id int,
default_root_folder_path text,
created_at timestamptz NOT NULL DEFAULT now(),
updated_at timestamptz NOT NULL DEFAULT now()
);
INSERT INTO lidarr_config (id, enabled) VALUES (1, false);
CREATE TYPE lidarr_request_status AS ENUM (
'pending', 'approved', 'rejected', 'completed', 'failed'
);
CREATE TYPE lidarr_request_kind AS ENUM ('artist', 'album', 'track');
CREATE TABLE lidarr_requests (
id uuid PRIMARY KEY DEFAULT gen_random_uuid(),
user_id uuid NOT NULL REFERENCES users(id) ON DELETE CASCADE,
status lidarr_request_status NOT NULL DEFAULT 'pending',
kind lidarr_request_kind NOT NULL,
lidarr_artist_mbid text NOT NULL,
lidarr_album_mbid text,
lidarr_track_mbid text,
artist_name text NOT NULL,
album_title text,
track_title text,
quality_profile_id int,
root_folder_path text,
decided_at timestamptz,
decided_by uuid REFERENCES users(id) ON DELETE SET NULL,
notes text,
completed_at timestamptz,
matched_track_id uuid REFERENCES tracks(id) ON DELETE SET NULL,
matched_album_id uuid REFERENCES albums(id) ON DELETE SET NULL,
matched_artist_id uuid REFERENCES artists(id) ON DELETE SET NULL,
requested_at timestamptz NOT NULL DEFAULT now(),
updated_at timestamptz NOT NULL DEFAULT now()
);
CREATE INDEX lidarr_requests_user_id_idx ON lidarr_requests (user_id);
CREATE INDEX lidarr_requests_status_idx ON lidarr_requests (status);
CREATE INDEX lidarr_requests_artist_mbid_idx ON lidarr_requests (lidarr_artist_mbid);
CREATE INDEX lidarr_requests_album_mbid_idx ON lidarr_requests (lidarr_album_mbid)
WHERE lidarr_album_mbid IS NOT NULL;