89 lines
2.2 KiB
Go
89 lines
2.2 KiB
Go
package application
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import (
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"context"
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"fmt"
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"os"
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"path/filepath"
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"strings"
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"time"
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"github.com/mmmy/snapgo/internal/infrastructure/clipboard"
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)
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// CaptureActionsService handles non-upload actions on already-produced PNG
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// screenshots. Keeping these actions here makes save/copy available across
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// overlay implementations without binding them to Wails or a specific OS.
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type CaptureActionsService struct {
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Clipboard clipboard.Writer
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Notifier Notifier
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}
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func (s *CaptureActionsService) CopyImage(_ context.Context, pngBytes []byte) error {
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if len(pngBytes) == 0 {
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err := fmt.Errorf("empty screenshot")
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s.notifyFailure(err.Error())
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return err
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}
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if s.Clipboard == nil {
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err := fmt.Errorf("clipboard is not configured")
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s.notifyFailure(err.Error())
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return err
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}
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if err := s.Clipboard.WriteImage(pngBytes); err != nil {
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s.notifyFailure("clipboard write failed: " + err.Error())
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return err
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}
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if s.Notifier != nil {
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s.Notifier.NotifySuccess("image copied to clipboard")
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}
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return nil
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}
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func (s *CaptureActionsService) SaveImage(_ context.Context, pngBytes []byte, dir string) (string, error) {
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if len(pngBytes) == 0 {
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err := fmt.Errorf("empty screenshot")
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s.notifyFailure(err.Error())
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return "", err
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}
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dir = strings.TrimSpace(dir)
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if dir == "" {
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err := fmt.Errorf("save directory is empty")
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s.notifyFailure(err.Error())
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return "", err
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}
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if err := os.MkdirAll(dir, 0o755); err != nil {
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s.notifyFailure("create save directory failed: " + err.Error())
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return "", err
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}
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path := uniquePNGPath(dir, time.Now())
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if err := os.WriteFile(path, pngBytes, 0o644); err != nil {
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s.notifyFailure("save failed: " + err.Error())
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return "", err
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}
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if s.Notifier != nil {
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s.Notifier.NotifySuccess(path)
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}
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return path, nil
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}
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func (s *CaptureActionsService) notifyFailure(reason string) {
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if s.Notifier != nil {
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s.Notifier.NotifyFailure(reason)
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}
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}
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func uniquePNGPath(dir string, now time.Time) string {
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base := now.Format("20060102-150405")
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path := filepath.Join(dir, base+".png")
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for i := 1; fileExists(path); i++ {
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path = filepath.Join(dir, fmt.Sprintf("%s-%02d.png", base, i))
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}
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return path
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}
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func fileExists(path string) bool {
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_, err := os.Stat(path)
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return err == nil
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}
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