74 lines
1.7 KiB
Go
74 lines
1.7 KiB
Go
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package domain
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import (
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"errors"
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"fmt"
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)
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var ErrInvalidStatusFacts = errors.New("invalid app status facts")
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// AppStatusFacts are IO-free observations used to derive one visible state.
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type AppStatusFacts struct {
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Operation AppStatus
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Running bool
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RecoveryPending bool
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Incompatible bool
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InstalledVersion string
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CatalogVersion string
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}
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// ResolveAppStatus derives the single user-visible state from local and
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// background-operation facts.
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func ResolveAppStatus(facts AppStatusFacts) (AppStatus, error) {
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if facts.RecoveryPending {
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return StatusRollbackPending, nil
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}
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if facts.Operation != "" {
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if !validOperationStatus(facts.Operation) {
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return "", fmt.Errorf(
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"%w: operation %q",
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ErrInvalidStatusFacts,
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facts.Operation,
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)
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}
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return facts.Operation, nil
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}
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if facts.Running {
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return StatusRunning, nil
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}
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if facts.Incompatible {
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return StatusIncompatible, nil
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}
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if facts.InstalledVersion == "" {
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return StatusNotInstalled, nil
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}
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if _, err := ParseSemVer(facts.InstalledVersion); err != nil {
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return "", fmt.Errorf("%w: installed version: %v", ErrInvalidStatusFacts, err)
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}
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if facts.CatalogVersion == "" {
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return StatusInstalled, nil
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}
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comparison, err := CompareSemVer(facts.InstalledVersion, facts.CatalogVersion)
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if err != nil {
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return "", fmt.Errorf("%w: catalog version: %v", ErrInvalidStatusFacts, err)
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}
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if comparison < 0 {
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return StatusUpdateAvailable, nil
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}
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return StatusInstalled, nil
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}
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func validOperationStatus(status AppStatus) bool {
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switch status {
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case StatusQueued,
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StatusDownloading,
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StatusVerifying,
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StatusExtracting,
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StatusInstalling,
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StatusFailed:
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return true
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default:
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return false
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}
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}
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