-- muse.db 初版：运行、事件、人审、卡片与向量 blob。
PRAGMA foreign_keys=ON;

CREATE TABLE IF NOT EXISTS schema_migrations (
  version TEXT PRIMARY KEY,
  applied_at TEXT NOT NULL
);

CREATE TABLE IF NOT EXISTS runs (
  id TEXT PRIMARY KEY,
  created_at TEXT NOT NULL,
  kind TEXT NOT NULL,
  input_json TEXT NOT NULL,
  output_text TEXT NOT NULL,
  meta_json TEXT NOT NULL,
  skill_set_hash TEXT NOT NULL,
  baseline_hash TEXT
);

CREATE TABLE IF NOT EXISTS events (
  run_id TEXT NOT NULL,
  seq INTEGER NOT NULL,
  kind TEXT NOT NULL,
  role TEXT,
  tool_name TEXT,
  payload_json TEXT NOT NULL,
  created_at TEXT NOT NULL,
  PRIMARY KEY (run_id, seq),
  FOREIGN KEY (run_id) REFERENCES runs(id)
);

CREATE TABLE IF NOT EXISTS reviews (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  run_id TEXT NOT NULL,
  target TEXT NOT NULL,
  action TEXT NOT NULL,
  reviewer TEXT NOT NULL,
  reason TEXT,
  created_at TEXT NOT NULL,
  FOREIGN KEY (run_id) REFERENCES runs(id),
  CHECK (action IN ('adopt', 'reject', 'revise')),
  CHECK (target IN ('candidate', 'lesson', 'chapter')),
  CHECK (length(reviewer) > 0)
);

CREATE TABLE IF NOT EXISTS revisions (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  review_id INTEGER NOT NULL,
  kind TEXT NOT NULL,
  before_text TEXT NOT NULL,
  after_text TEXT NOT NULL,
  created_at TEXT NOT NULL,
  FOREIGN KEY (review_id) REFERENCES reviews(id)
);

CREATE TABLE IF NOT EXISTS cards (
  id TEXT PRIMARY KEY,
  kind TEXT NOT NULL,
  title TEXT,
  payload_json TEXT NOT NULL,
  embedding BLOB,
  work_id INTEGER,
  source_path TEXT,
  content_hash TEXT,
  created_at TEXT NOT NULL
);

CREATE INDEX IF NOT EXISTS idx_cards_kind ON cards(kind);
CREATE INDEX IF NOT EXISTS idx_events_run ON events(run_id);