init commit

internal/config/config.go

@@ -0,0 +1,92 @@
+package config
+
+import (
+	"encoding/json"
+	"os"
+	"path/filepath"
+	"time"
+)
+
+// Config holds application configuration
+type Config struct {
+	SeekStep    time.Duration `json:"seek_step"`
+	BigSeekStep time.Duration `json:"big_seek_step"`
+	Volume      float64       `json:"volume"`
+	Theme       string        `json:"theme"`
+	Editor      string        `json:"editor"`
+}
+
+// configFile is the JSON serialization format
+type configFile struct {
+	SeekStepMs    int64   `json:"seek_step_ms"`
+	BigSeekStepMs int64   `json:"big_seek_step_ms"`
+	Volume        float64 `json:"volume"`
+	Theme         string  `json:"theme"`
+	Editor        string  `json:"editor"`
+}
+
+// configPath returns the path to the config file
+func configPath() string {
+	configDir, err := os.UserConfigDir()
+	if err != nil {
+		configDir = os.Getenv("HOME")
+	}
+	return filepath.Join(configDir, "playback", "config.json")
+}
+
+// Load loads configuration from disk, returning defaults if not found
+func Load() Config {
+	cfg := DefaultConfig()
+
+	data, err := os.ReadFile(configPath())
+	if err != nil {
+		return cfg
+	}
+
+	var cf configFile
+	if err := json.Unmarshal(data, &cf); err != nil {
+		return cfg
+	}
+
+	if cf.SeekStepMs > 0 {
+		cfg.SeekStep = time.Duration(cf.SeekStepMs) * time.Millisecond
+	}
+	if cf.BigSeekStepMs > 0 {
+		cfg.BigSeekStep = time.Duration(cf.BigSeekStepMs) * time.Millisecond
+	}
+	if cf.Volume > 0 {
+		cfg.Volume = cf.Volume
+	}
+	if cf.Theme != "" {
+		cfg.Theme = cf.Theme
+	}
+	if cf.Editor != "" {
+		cfg.Editor = cf.Editor
+	}
+
+	return cfg
+}
+
+// Save writes configuration to disk
+func (c Config) Save() error {
+	cf := configFile{
+		SeekStepMs:    c.SeekStep.Milliseconds(),
+		BigSeekStepMs: c.BigSeekStep.Milliseconds(),
+		Volume:        c.Volume,
+		Theme:         c.Theme,
+		Editor:        c.Editor,
+	}
+
+	data, err := json.MarshalIndent(cf, "", "  ")
+	if err != nil {
+		return err
+	}
+
+	// Ensure directory exists
+	dir := filepath.Dir(configPath())
+	if err := os.MkdirAll(dir, 0755); err != nil {
+		return err
+	}
+
+	return os.WriteFile(configPath(), data, 0644)
+}