IliaDenisov
62 lines
1.4 KiB
Go
62 lines
1.4 KiB
Go
package loader
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import (
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"errors"
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"fmt"
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mc "galaxy/model/client"
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)
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func (l *loader) loadCurrentState() (*mc.State, bool, error) {
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stateExists, err := l.storage.StateExists()
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if err != nil {
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return nil, false, fmt.Errorf("State file lookup error: %w", err)
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}
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if !stateExists {
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return nil, false, nil
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}
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if s, err := l.storage.LoadState(); err != nil {
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return nil, false, fmt.Errorf("State read error: %w", err)
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} else {
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return &s, true, nil
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}
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}
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func (l *loader) updateCurrentVersion(v string) error {
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state, stateExists, err := l.loadCurrentState()
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if err != nil {
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return fmt.Errorf("Load State error: %w", err)
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}
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if !stateExists {
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state = &mc.State{}
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}
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if state.ClientCurrentVersion == v {
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return nil
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}
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state.ClientCurrentVersion = v
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if err := l.storage.SaveState(*state); err != nil {
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return fmt.Errorf("State write error: %w", err)
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}
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return nil
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}
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func (l *loader) setNextVersion(v *string) error {
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state, stateExists, err := l.loadCurrentState()
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if err != nil {
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return fmt.Errorf("Load State error: %w", err)
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}
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if !stateExists {
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return errors.New("State was never saved, unable to set next version")
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}
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if state.ClientNextVersion != nil && v != nil && *state.ClientNextVersion == *v {
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return nil
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}
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if state.ClientNextVersion == v {
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return nil
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}
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state.ClientNextVersion = v
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if err := l.storage.SaveState(*state); err != nil {
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return fmt.Errorf("State write error: %w", err)
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}
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return nil
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}
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