-- 0005_games.sql — per-user save states for emulated games.
--
-- Save states are user data, not media: two people playing the same ROM keep
-- their own saves. Keyed by (user, item, slot) so a game can have several save
-- slots, the same way a console memory card would.

CREATE TABLE game_saves (
    user_id    INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
    item_id    INTEGER NOT NULL REFERENCES media_items(id) ON DELETE CASCADE,
    slot       TEXT    NOT NULL DEFAULT 'default',
    data       BLOB    NOT NULL,
    size       INTEGER NOT NULL DEFAULT 0,
    updated_at TEXT    NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%fZ','now')),
    PRIMARY KEY (user_id, item_id, slot)
);

CREATE INDEX idx_game_saves_item ON game_saves(item_id);