-- Movie side of the domain model in DESIGN.md §4. Series, seasons and
-- episodes are issue #34 and are deliberately absent here.
--
-- Every table is STRICT: SQLite's default type affinity would happily store
-- a string in an INTEGER column, and this schema is the last place that
-- should be forgiving.

CREATE TABLE policies (
    id                INTEGER PRIMARY KEY,
    name              TEXT NOT NULL UNIQUE,
    -- §5.2. Which audio track a release must carry, expressed against the
    -- title's original language rather than a fixed list.
    required_audio    TEXT NOT NULL CHECK (json_valid(required_audio)),
    -- §5.2. Languages that never satisfy required_audio unless they are the
    -- title's own original language. Subtitles are not filtered.
    dub_blacklist     TEXT NOT NULL CHECK (json_valid(dub_blacklist)),
    -- §5.3. Dolby Vision profiles, knowable only from ffprobe.
    hdr_rules         TEXT NOT NULL CHECK (json_valid(hdr_rules)),
    -- §5.5. Per resolution: floor, target and the penalty above target.
    size_bands        TEXT NOT NULL CHECK (json_valid(size_bands)),
    resolution_pref   TEXT NOT NULL CHECK (json_valid(resolution_pref)),
    -- §5.5. Small tiebreaker, not the dominant scoring term.
    source_weights    TEXT NOT NULL CHECK (json_valid(source_weights)),
    created_at        TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%fZ', 'now')),
    updated_at        TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%fZ', 'now'))
) STRICT;

-- §5.1. One policy per root, two roots per media kind.
CREATE TABLE roots (
    id         INTEGER PRIMARY KEY,
    kind       TEXT NOT NULL CHECK (kind IN ('movie', 'tv')),
    audience   TEXT NOT NULL CHECK (audience IN ('main', 'kids')),
    path       TEXT NOT NULL UNIQUE,
    policy_id  INTEGER NOT NULL REFERENCES policies (id),
    created_at TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%fZ', 'now')),
    updated_at TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%fZ', 'now')),
    UNIQUE (kind, audience)
) STRICT;

-- §4.1. `wanted` is the only intent. `state` is a cache of what reconcile
-- last observed, and arr-core (#7) owns the canonical enum this mirrors.
CREATE TABLE movies (
    id                INTEGER PRIMARY KEY,
    tmdb_id           INTEGER NOT NULL UNIQUE,
    title             TEXT NOT NULL,
    year              INTEGER,
    -- §5.2. BCP-47 from TMDB. Nullable until the first metadata refresh.
    original_language TEXT,
    root_id           INTEGER NOT NULL REFERENCES roots (id),
    wanted            INTEGER NOT NULL DEFAULT 1 CHECK (wanted IN (0, 1)),
    -- §5.1. Per-title relaxations and tightenings of the root policy.
    overrides         TEXT NOT NULL DEFAULT '{}' CHECK (json_valid(overrides)),
    state             TEXT NOT NULL DEFAULT 'missing'
                      CHECK (state IN ('missing', 'grabbed', 'imported')),
    -- §6.3. Stops targeted search while leaving RSS matching on.
    blocked           INTEGER NOT NULL DEFAULT 0 CHECK (blocked IN (0, 1)),
    search_attempts   INTEGER NOT NULL DEFAULT 0,
    last_searched_at  TEXT,
    created_at        TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%fZ', 'now')),
    updated_at        TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%fZ', 'now'))
) STRICT;

-- §8. The reconcile loop's work list is "wanted, not blocked, least recently
-- searched first", so the partial index carries the sort column.
CREATE INDEX movies_pending_search
    ON movies (last_searched_at)
    WHERE wanted = 1 AND blocked = 0;

CREATE INDEX movies_state ON movies (state);
CREATE INDEX movies_root ON movies (root_id);

-- §4. Polymorphic owner so episodes (#34) reuse the table unchanged.
CREATE TABLE media_files (
    id         INTEGER PRIMARY KEY,
    owner_kind TEXT NOT NULL CHECK (owner_kind IN ('movie', 'episode')),
    owner_id   INTEGER NOT NULL,
    path       TEXT NOT NULL UNIQUE,
    size       INTEGER NOT NULL,
    -- §5.6. What ffprobe found: resolution, source, hdr, audio and sub tracks.
    probed     TEXT CHECK (probed IS NULL OR json_valid(probed)),
    -- §5.7. Which rule was relaxed to allow this import, if any.
    waiver     TEXT CHECK (waiver IS NULL OR json_valid(waiver)),
    created_at TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%fZ', 'now')),
    updated_at TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%fZ', 'now'))
) STRICT;

CREATE INDEX media_files_owner ON media_files (owner_kind, owner_id);

-- §8. A file with no probe result yet is a pending import.
CREATE INDEX media_files_unprobed ON media_files (id) WHERE probed IS NULL;

CREATE TABLE releases (
    id            INTEGER PRIMARY KEY,
    -- Prowlarr's indexer id. Not a foreign key: indexers live in Prowlarr.
    indexer_id    INTEGER NOT NULL,
    guid          TEXT NOT NULL,
    name          TEXT NOT NULL,
    size          INTEGER NOT NULL,
    seeders       INTEGER,
    publish_date  TEXT,
    download_url  TEXT NOT NULL,
    -- §5.6. What the release name claims, before anything is downloaded.
    parsed        TEXT NOT NULL CHECK (json_valid(parsed)),
    score         REAL,
    -- §9.3. Three buckets. `rejected_rule` names the rule that killed it so
    -- an over-strict filter is visible without reading release names.
    verdict       TEXT CHECK (verdict IN ('eligible', 'waived', 'rejected')),
    rejected_rule TEXT,
    created_at    TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%fZ', 'now')),
    UNIQUE (indexer_id, guid),
    CHECK ((verdict = 'rejected') = (rejected_rule IS NOT NULL))
) STRICT;

CREATE INDEX releases_verdict ON releases (verdict, score);

-- §7.3. The torrent and the library entry are separate state machines; this
-- row is the torrent's. Download progress stays in memory.
CREATE TABLE grabs (
    id          INTEGER PRIMARY KEY,
    release_id  INTEGER NOT NULL REFERENCES releases (id),
    target_kind TEXT NOT NULL CHECK (target_kind IN ('movie', 'episode')),
    target_id   INTEGER NOT NULL,
    infohash    TEXT NOT NULL UNIQUE,
    state       TEXT NOT NULL DEFAULT 'sent'
                CHECK (state IN ('sent', 'downloaded', 'imported', 'failed')),
    grabbed_at  TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%fZ', 'now')),
    imported_at TEXT
) STRICT;

CREATE INDEX grabs_state ON grabs (state);
CREATE INDEX grabs_target ON grabs (target_kind, target_id);

-- §6.3. Keyed on infohash and on normalised name, because the same release
-- reappears under a different infohash.
CREATE TABLE blacklist (
    id              INTEGER PRIMARY KEY,
    infohash        TEXT UNIQUE,
    normalised_name TEXT NOT NULL,
    reason          TEXT NOT NULL,
    created_at      TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%fZ', 'now'))
) STRICT;

CREATE INDEX blacklist_name ON blacklist (normalised_name);

-- §4.3. A tag on titles, driving filtering and notification routing. Never a path.
CREATE TABLE owners (
    id         INTEGER PRIMARY KEY,
    name       TEXT NOT NULL UNIQUE,
    ntfy_topic TEXT NOT NULL,
    created_at TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%fZ', 'now'))
) STRICT;

CREATE TABLE title_owners (
    title_kind TEXT NOT NULL CHECK (title_kind IN ('movie', 'series')),
    title_id   INTEGER NOT NULL,
    owner_id   INTEGER NOT NULL REFERENCES owners (id) ON DELETE CASCADE,
    PRIMARY KEY (title_kind, title_id, owner_id)
) STRICT;

CREATE INDEX title_owners_owner ON title_owners (owner_id);