57 lines
1.6 KiB
Go
57 lines
1.6 KiB
Go
package domain
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import (
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"errors"
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"time"
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)
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var ErrInvalidSubmissionTransition = errors.New("invalid submission status transition")
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type SubmissionStatus string
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const (
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SubmissionStatusFenced SubmissionStatus = "FENCED"
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SubmissionStatusSubmitted SubmissionStatus = "SUBMITTED"
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SubmissionStatusReconciliationRequired SubmissionStatus = "RECONCILIATION_REQUIRED"
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SubmissionStatusManualResolved SubmissionStatus = "MANUAL_RESOLVED"
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)
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type OrderSubmission struct {
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ID string
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TaskID string
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AuthorizationID string
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AttemptID string
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Status SubmissionStatus
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Gate1UnitPrice string
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Gate2UnitPrice string
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QuantityRead int
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ConfirmAmount string
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CreatedAt time.Time
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ResolvedAt *time.Time
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}
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// CanTransitionTo 只允许围栏记录向最终观察结果调和，拒绝回退以防触发第二次真实动作。
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func (status SubmissionStatus) CanTransitionTo(next SubmissionStatus) bool {
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_, allowed := submissionTransitions[status][next]
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return allowed
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}
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// TransitionSubmission 返回下一状态；未定义的提交记录状态转移一律失败。
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func TransitionSubmission(current, next SubmissionStatus) (SubmissionStatus, error) {
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if !current.CanTransitionTo(next) {
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return current, ErrInvalidSubmissionTransition
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}
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return next, nil
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}
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var submissionTransitions = map[SubmissionStatus]map[SubmissionStatus]struct{}{
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SubmissionStatusFenced: {
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SubmissionStatusSubmitted: {},
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SubmissionStatusReconciliationRequired: {},
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},
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SubmissionStatusReconciliationRequired: {
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SubmissionStatusManualResolved: {},
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},
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}
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