48 lines
1.4 KiB
Go
48 lines
1.4 KiB
Go
package alipay
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import (
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"context"
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"time"
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"github.com/smartwalle/alipay/v3"
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"github.com/break/junhong_cmp_fiber/internal/model"
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apperrors "github.com/break/junhong_cmp_fiber/pkg/errors"
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)
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// BuildWapPayURL 生成支付宝手机网站支付 URL。
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// payment.PaymentNo 作为 out_trade_no，payment.Amount（分）转为元字符串，
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// payment.ExpireAt 若非空则转换为支付宝 TimeExpire 格式（yyyy-MM-dd HH:mm）。
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// 返回签名后的完整 WAP 支付 URL，qr_link 与 copy_link 可使用同一个 URL。
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func BuildWapPayURL(ctx context.Context, cfg *model.WechatConfig, payment *model.Payment, subject string) (string, error) {
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client, err := NewClientFromConfig(cfg)
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if err != nil {
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return "", err
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}
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totalAmount := FenToYuan(payment.Amount)
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param := alipay.TradeWapPay{
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Trade: alipay.Trade{
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NotifyURL: cfg.AliNotifyURL,
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ReturnURL: cfg.AliReturnURL,
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Subject: subject,
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OutTradeNo: payment.PaymentNo,
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TotalAmount: totalAmount,
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ProductCode: "QUICK_WAP_WAY",
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},
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}
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// 设置支付链接过期时间
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if payment.ExpireAt != nil && payment.ExpireAt.After(time.Now()) {
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param.TimeExpire = payment.ExpireAt.Format("2006-01-02 15:04")
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}
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payURL, err := client.TradeWapPay(param)
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if err != nil {
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return "", apperrors.Wrap(apperrors.CodeNoPaymentConfig, err, "支付宝配置不可用：生成支付链接失败")
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}
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return payURL.String(), nil
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}
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