63d1860dc0
Add a full payment and subscription system supporting EasyPay (Alipay/WeChat), Stripe, and direct Alipay/WeChat Pay providers with multi-instance load balancing.
25 lines
648 B
Go
25 lines
648 B
Go
package payment
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import (
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"fmt"
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"github.com/shopspring/decimal"
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)
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const centsPerYuan = 100
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// YuanToFen converts a CNY yuan string (e.g. "10.50") to fen (int64).
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// Uses shopspring/decimal for precision.
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func YuanToFen(yuanStr string) (int64, error) {
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d, err := decimal.NewFromString(yuanStr)
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if err != nil {
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return 0, fmt.Errorf("invalid amount: %s", yuanStr)
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}
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return d.Mul(decimal.NewFromInt(centsPerYuan)).IntPart(), nil
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}
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// FenToYuan converts fen (int64) to yuan as a float64 for interface compatibility.
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func FenToYuan(fen int64) float64 {
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return decimal.NewFromInt(fen).Div(decimal.NewFromInt(centsPerYuan)).InexactFloat64()
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}
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