bjarneo--cliamp
wehub-resource-sync
64 行
1.5 KiB
Go
64 行
1.5 KiB
Go
// Package resume persists the last-played track and position so playback
|
|
// can be resumed on the next launch.
|
|
package resume
|
|
|
|
import (
|
|
"encoding/json"
|
|
"os"
|
|
"path/filepath"
|
|
|
|
"github.com/bjarneo/cliamp/internal/appdir"
|
|
)
|
|
|
|
// State holds enough information to resume a previous playback session.
|
|
type State struct {
|
|
Path string `json:"path"`
|
|
PositionSec int `json:"position_sec"`
|
|
Playlist string `json:"playlist,omitempty"`
|
|
}
|
|
|
|
func stateFile() (string, error) {
|
|
dir, err := appdir.Dir()
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
return filepath.Join(dir, "resume.json"), nil
|
|
}
|
|
|
|
// Save writes the resume state to disk. No-ops for empty path or zero/negative
|
|
// position to avoid overwriting a valid resume file with useless data.
|
|
// Errors are silently ignored so a failed write never disrupts normal exit.
|
|
func Save(path string, positionSec int, playlist string) {
|
|
if path == "" || positionSec <= 0 {
|
|
return
|
|
}
|
|
f, err := stateFile()
|
|
if err != nil {
|
|
return
|
|
}
|
|
data, err := json.Marshal(State{Path: path, PositionSec: positionSec, Playlist: playlist})
|
|
if err != nil {
|
|
return
|
|
}
|
|
_ = os.MkdirAll(filepath.Dir(f), 0o755)
|
|
_ = os.WriteFile(f, data, 0o600)
|
|
}
|
|
|
|
// Load reads the resume state from disk. Returns a zero State if the file
|
|
// does not exist or cannot be parsed.
|
|
func Load() State {
|
|
f, err := stateFile()
|
|
if err != nil {
|
|
return State{}
|
|
}
|
|
data, err := os.ReadFile(f)
|
|
if err != nil {
|
|
return State{}
|
|
}
|
|
var s State
|
|
if err := json.Unmarshal(data, &s); err != nil {
|
|
return State{}
|
|
}
|
|
return s
|
|
}
|