module.exports = {
    PORT: process.env.PORT || 3000,
    CACHE_EXPIRY_HOURS: parseInt(process.env.CACHE_EXPIRY_HOURS || '24', 10),
    API_KEY: process.env.API_KEY,

    // Database configuration
    POSTGRES_HOST: process.env.POSTGRES_HOST,
    POSTGRES_PORT: parseInt(process.env.POSTGRES_PORT || '5432', 10),
    POSTGRES_USER: process.env.POSTGRES_USER,
    POSTGRES_PASSWORD: process.env.POSTGRES_PASSWORD,
    POSTGRES_DB: process.env.POSTGRES_DB,
    DB_PATH: process.env.DB_PATH || '/db/cache.db',

    // Determine which database to use
    USE_POSTGRES: !!(process.env.POSTGRES_HOST && process.env.POSTGRES_USER &&
        process.env.POSTGRES_PASSWORD && process.env.POSTGRES_DB),
};