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71 lines
2.1 KiB
71 lines
2.1 KiB
package alipay
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import (
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"context"
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"errors"
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"net/url"
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)
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type (
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// 预支付响应参数（返回给Flutter客户端）
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AppPayParams struct {
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AppID string `json:"appid"` // 应用ID
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PartnerID string `json:"partnerid"` // 商户号
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PrepayID string `json:"prepayid"` // 预支付ID
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Package string `json:"package"` // 固定值 "Sign=WXPay"
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NonceStr string `json:"noncestr"` // 随机字符串
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TimeStamp string `json:"timestamp"` // 时间戳（秒）
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Sign string `json:"sign"` // 支付签名
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}
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ISys interface {
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GenerateOrderNo(prefix string) string
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CreateAppOrder(ctx context.Context, outTradeNo string, totalFee int64, description string, notifyurl string) (result string, err error)
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DecryptWxPayNotify(values url.Values) (bool, error)
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}
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)
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var defsys ISys
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// ErrNotInited 支付宝未初始化。OnInit 失败时调用方可选择降级；此时包级函数返回本错误，而不是 panic。
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var ErrNotInited = errors.New("alipay 未初始化：配置缺失或密钥加载失败")
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func OnInit(config map[string]interface{}, option ...Option) error {
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sys, err := newSys(newOptions(config, option...))
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if err != nil {
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// 出错时不要给 defsys 赋值：newSys 出错时 sys 仍是非 nil 的 *Alipay（client 可能为 nil），
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// 装进接口后 defsys != nil，守卫失效、调用时在 client 上 nil 解引用。
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return err
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}
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defsys = sys
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return nil
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}
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func NewSys(option ...Option) (ISys, error) {
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sys, err := newSys(newOptionsByOption(option...))
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if err != nil {
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return nil, err
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}
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return sys, nil
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}
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func GenerateOrderNo(prefix string) string {
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if defsys == nil {
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return ""
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}
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return defsys.GenerateOrderNo(prefix)
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}
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func CreateAppOrder(ctx context.Context, outTradeNo string, totalFee int64, description string, notifyurl string) (result string, err error) {
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if defsys == nil {
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return "", ErrNotInited
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}
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return defsys.CreateAppOrder(ctx, outTradeNo, totalFee, description, notifyurl)
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}
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func DecryptWxPayNotify(values url.Values) (bool, error) {
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if defsys == nil {
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return false, ErrNotInited
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}
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return defsys.DecryptWxPayNotify(values)
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}
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