package conf

type DatabaseType string

const (
	DatabaseTypeSqlite3  DatabaseType = "sqlite3"
	DatabaseTypeMysql    DatabaseType = "mysql"
	DatabaseTypePostgres DatabaseType = "postgres"
)

type DatabaseConfig struct {
	Type     DatabaseType `yaml:"type" lc:"default: sqlite3" hc:"support sqlite3, mysql, postgres" env:"DATABASE_TYPE"`
	Host     string       `yaml:"host" hc:"when type is not sqlite3, and port is 0, it will use unix socket file" env:"DATABASE_HOST"`
	Port     uint16       `yaml:"port" env:"DATABASE_PORT"`
	User     string       `yaml:"user" env:"DATABASE_USER"`
	Password string       `yaml:"password" env:"DATABASE_PASSWORD"`
	DBName   string       `yaml:"db_name" lc:"default: synctv" hc:"when type is sqlite3, it will use sqlite db file or memory" env:"DATABASE_DB_NAME"`
	SslMode  string       `yaml:"ssl_mode" env:"DATABASE_SSL_MODE" hc:"mysql: true, false, skip-verify, preferred, <name> postgres: disable, require, verify-ca, verify-full"`

	CustomDSN string `yaml:"custom_dsn" hc:"when not empty, it will ignore other config" env:"DATABASE_CUSTOM_DSN"`

	MaxIdleConns    int    `yaml:"max_idle_conns" hc:"sqlite3 does not support setting connection parameters"  env:"DATABASE_MAX_IDLE_CONNS"`
	MaxOpenConns    int    `yaml:"max_open_conns" env:"DATABASE_MAX_OPEN_CONNS"`
	ConnMaxLifetime string `yaml:"conn_max_lifetime" env:"DATABASE_CONN_MAX_LIFETIME"`
	ConnMaxIdleTime string `yaml:"conn_max_idle_time" env:"DATABASE_CONN_MAX_IDLE_TIME"`
}

func DefaultDatabaseConfig() DatabaseConfig {
	return DatabaseConfig{
		Type:   DatabaseTypeSqlite3,
		Host:   "",
		DBName: "synctv",

		MaxIdleConns:    4,
		MaxOpenConns:    64,
		ConnMaxLifetime: "2h",
		ConnMaxIdleTime: "30m",
	}
}