CREATE TABLE IF NOT EXISTS repositories (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  name TEXT NOT NULL,
  url TEXT NOT NULL UNIQUE,
  description TEXT,
  branch TEXT NOT NULL DEFAULT 'main',
  status TEXT NOT NULL DEFAULT 'registered',
  created_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP,
  updated_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE IF NOT EXISTS approved_abilities (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  repository_id INTEGER NOT NULL REFERENCES repositories(id) ON DELETE CASCADE,
  name TEXT NOT NULL,
  description TEXT NOT NULL DEFAULT '',
  confidence REAL NOT NULL DEFAULT 1.0,
  created_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE IF NOT EXISTS approved_capabilities (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  repository_id INTEGER NOT NULL REFERENCES repositories(id) ON DELETE CASCADE,
  ability_id INTEGER NOT NULL REFERENCES approved_abilities(id) ON DELETE CASCADE,
  name TEXT NOT NULL,
  description TEXT NOT NULL DEFAULT '',
  inputs TEXT NOT NULL DEFAULT '[]',
  outputs TEXT NOT NULL DEFAULT '[]',
  confidence REAL NOT NULL DEFAULT 1.0,
  created_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE IF NOT EXISTS approved_features (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  repository_id INTEGER NOT NULL REFERENCES repositories(id) ON DELETE CASCADE,
  capability_id INTEGER NOT NULL REFERENCES approved_capabilities(id) ON DELETE CASCADE,
  name TEXT NOT NULL,
  type TEXT NOT NULL,
  location TEXT NOT NULL DEFAULT '',
  confidence REAL NOT NULL DEFAULT 1.0,
  created_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE IF NOT EXISTS approved_evidence (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  repository_id INTEGER NOT NULL REFERENCES repositories(id) ON DELETE CASCADE,
  capability_id INTEGER NOT NULL REFERENCES approved_capabilities(id) ON DELETE CASCADE,
  type TEXT NOT NULL,
  reference TEXT NOT NULL,
  strength TEXT NOT NULL DEFAULT 'medium',
  created_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP
);

CREATE INDEX IF NOT EXISTS idx_repositories_status ON repositories(status);
CREATE INDEX IF NOT EXISTS idx_abilities_repository ON approved_abilities(repository_id);
CREATE INDEX IF NOT EXISTS idx_capabilities_repository ON approved_capabilities(repository_id);
CREATE INDEX IF NOT EXISTS idx_features_repository ON approved_features(repository_id);
CREATE INDEX IF NOT EXISTS idx_evidence_repository ON approved_evidence(repository_id);