--
-- Artists (should be applicable to all art)
--
CREATE TABLE artist (
    id uuid DEFAULT gen_random_uuid(),
    name text NOT NULL,
    website text,
    avatar text
);
ALTER TABLE artist ADD CONSTRAINT artist_pk PRIMARY KEY (id);

--
-- Music releases
--
CREATE TABLE musicrelease (
    id character varying(64) NOT NULL,
    title text NOT NULL,
    description text,
    type text,
    release_date DATE NOT NULL,
    artwork text,
    buyname text,
    buylink text
);
ALTER TABLE musicrelease ADD CONSTRAINT musicrelease_pk PRIMARY KEY (id);

--
-- Music links (external platform links under a release)
--
CREATE TABLE musiclink (
    release character varying(64) NOT NULL,
    name text NOT NULL,
    url text NOT NULL
);
ALTER TABLE musiclink ADD CONSTRAINT musiclink_pk PRIMARY KEY (release, name);

--
-- Music credits (artist credits under a release)
--
CREATE TABLE musiccredit (
    release character varying(64) NOT NULL,
    artist uuid NOT NULL,
    role text NOT NULL,
    is_primary boolean DEFAULT false
);
ALTER TABLE musiccredit ADD CONSTRAINT musiccredit_pk PRIMARY KEY (release, artist);

--
-- Music tracks (tracks under a release)
--
CREATE TABLE musictrack (
    id uuid DEFAULT gen_random_uuid(),
    title text NOT NULL,
    description text,
    lyrics text,
    preview_url text
);
ALTER TABLE musictrack ADD CONSTRAINT musictrack_pk PRIMARY KEY (id);

--
-- Music release/track pairs
--
CREATE TABLE musicreleasetrack (
    release character varying(64) NOT NULL,
    track uuid NOT NULL,
    number integer NOT NULL
);
ALTER TABLE musicreleasetrack ADD CONSTRAINT musictrack_pk PRIMARY KEY (release, track);

--
-- Foreign keys
--
ALTER TABLE musiccredit ADD CONSTRAINT musiccredit_artist_fk FOREIGN KEY (artist) REFERENCES artist(id) ON DELETE CASCADE ON UPDATE CASCADE;
ALTER TABLE musiccredit ADD CONSTRAINT musiccredit_release_fk FOREIGN KEY (release) REFERENCES musicrelease(id) ON DELETE CASCADE;
ALTER TABLE musiclink ADD CONSTRAINT musiclink_release_fk FOREIGN KEY (release) REFERENCES musicrelease(id) ON UPDATE CASCADE ON DELETE CASCADE;
ALTER TABLE musicreleasetrack ADD CONSTRAINT music_pair_trackref_fk FOREIGN KEY (release) REFERENCES musicrelease(id) ON DELETE CASCADE;
ALTER TABLE musicreleasetrack ADD CONSTRAINT music_pair_releaseref_fk FOREIGN KEY (track) REFERENCES musictrack(id) ON DELETE CASCADE;