import type { SQLiteDatabase } from 'expo-sqlite';

export async function migrateDb(db: SQLiteDatabase): Promise<void> {
  await db.execAsync('PRAGMA journal_mode = WAL;');
  await db.execAsync(`
    CREATE TABLE IF NOT EXISTS activities (
      id              TEXT PRIMARY KEY,
      source_hash     TEXT NOT NULL,
      detail_json     TEXT NOT NULL,
      timeseries_json TEXT,
      geojson         TEXT,
      original_path   TEXT,
      synced_at       INTEGER,
      origin          TEXT NOT NULL CHECK(origin IN ('local', 'remote')),
      created_at      INTEGER NOT NULL DEFAULT (unixepoch())
    );

    CREATE INDEX IF NOT EXISTS idx_activities_created_at
      ON activities(created_at DESC);

    CREATE TABLE IF NOT EXISTS settings (
      key   TEXT PRIMARY KEY,
      value TEXT NOT NULL
    );
  `);
}