package paymentutil

const (
	ProviderAlipay     = "alipay"
	ProviderAlipayV3   = "alipay-v3"
	ProviderWechatV2   = "wechat-v2"
	ProviderWechatV3   = "wechat-v3"
	ProviderApple      = "apple-iap"
	ProviderChinaums   = "chinaums"
	ProviderSFT        = "sft"
	ProviderSuperPay   = "supper-pay"
	ProviderWechatGame = "wechat-game-pay"
	ProviderDouyinGame = "douyin-game-pay"
	ProviderDouyin     = "douyin"
	ProviderQQ         = "qq"
	ProviderAllinPay   = "allinpay"
	ProviderLakala     = "lakala"
	ProviderPayPal     = "paypal"
	ProviderSaobei     = "saobei"
	ProviderInternal   = "internal"

	ModeExternal = "external"
	ModeInternal = "internal"
)

var externalProviders = [...]string{
	ProviderAlipay, ProviderAlipayV3, ProviderWechatV2, ProviderWechatV3, ProviderApple,
	ProviderChinaums, ProviderSFT, ProviderSuperPay, ProviderWechatGame, ProviderDouyinGame,
	ProviderDouyin, ProviderQQ, ProviderAllinPay, ProviderLakala, ProviderPayPal, ProviderSaobei,
}

// SupportedProviders returns a copy so callers cannot mutate the process-wide
// provider catalog.
func SupportedProviders() []string {
	return append([]string(nil), externalProviders[:]...)
}