-- Persistent download queue: jobs survive API restarts, per-user scoping
BEGIN TRANSACTION;

CREATE TABLE IF NOT EXISTS download_jobs (
  id TEXT PRIMARY KEY,
  user_id TEXT NOT NULL,
  provider TEXT NOT NULL,
  video_id TEXT NOT NULL,
  title TEXT,
  state TEXT NOT NULL DEFAULT 'queued',        -- queued|running|merging|completed|failed|interrupted
  progress REAL NOT NULL DEFAULT 0,
  format_id TEXT,
  audio_only INTEGER NOT NULL DEFAULT 0,
  url TEXT,
  file_name TEXT,
  file_ext TEXT,
  file_size INTEGER,
  file_path TEXT,
  error TEXT,
  created_at INTEGER NOT NULL,
  updated_at INTEGER NOT NULL,
  completed_at INTEGER
);

CREATE INDEX IF NOT EXISTS idx_download_jobs_user ON download_jobs(user_id, created_at DESC);
CREATE INDEX IF NOT EXISTS idx_download_jobs_state ON download_jobs(state);

COMMIT;