48 lines
945 B
Go
48 lines
945 B
Go
package usecase
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import (
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errs "backend/pkg/library/errors"
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"context"
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"math"
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"backend/pkg/member/domain/entity"
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GIDLib "code.30cm.net/digimon/library-go/utils/invited_code"
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)
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func (use *MemberUseCase) Generate(ctx context.Context) (string, error) {
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var data entity.AutoID
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err := use.GenerateUID.Inc(ctx, &data)
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if err != nil {
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e := errs.DBErrorErrorL(
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use.Logger,
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[]errs.LogField{
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{Key: "func", Val: "AutoIDModel.Inc"},
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{Key: "err", Val: err.Error()},
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},
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"failed to inc account num")
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return "", e
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}
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// 使用 uint64 處理，避免溢出
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sum := GIDLib.InitAutoID + data.Counter
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if sum > math.MaxInt64 {
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return "",
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errs.InputInvalidRangeErrorL(
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use.Logger,
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[]errs.LogField{
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{Key: "func", Val: "MemberUseCase.Generate"},
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},
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"sum exceeds the maximum int64 value")
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}
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uid, err := use.GenerateUID.GetUIDFromNum(int64(sum))
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if err != nil {
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return "", err
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}
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return uid, nil
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}
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