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|
package timer
import (
"encoding/json"
"os"
"path/filepath"
"strings"
"time"
)
const (
stateFile = ".timr_state"
)
// State stores persisted timer progress.
type State struct {
StartTime time.Time
ElapsedTime time.Duration
Running bool
}
func resolveStateFilePath(path string) (string, error) {
if strings.TrimSpace(path) != "" {
return path, nil
}
configDir, err := os.UserConfigDir()
if err != nil {
return "", err
}
return filepath.Join(configDir, "timr", stateFile), nil
}
// GetStateFile returns the default state file path.
func GetStateFile() (string, error) {
return resolveStateFilePath("")
}
// LoadState loads timer state from the default state file.
func LoadState() (State, error) {
return LoadStateAt("")
}
// LoadStateAt loads timer state from the provided path or default path when empty.
func LoadStateAt(path string) (State, error) {
var state State
stateFilePath, err := resolveStateFilePath(path)
if err != nil {
return state, err
}
data, err := os.ReadFile(stateFilePath)
if err != nil {
if os.IsNotExist(err) {
return State{}, nil
}
return state, err
}
err = json.Unmarshal(data, &state)
return state, err
}
// Save writes timer state to the default state file.
func (s *State) Save() error {
return s.SaveAt("")
}
// SaveAt writes timer state to the provided path or default path when empty.
func (s *State) SaveAt(path string) error {
data, err := json.Marshal(s)
if err != nil {
return err
}
stateFilePath, err := resolveStateFilePath(path)
if err != nil {
return err
}
dir := filepath.Dir(stateFilePath)
if err := os.MkdirAll(dir, 0755); err != nil {
return err
}
return os.WriteFile(stateFilePath, data, 0644)
}
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