feat: ConvertGUI v2.0 (Wails + preview/trim + NSIS + Gitea CI)

internal/config/config.go

@@ -0,0 +1,84 @@
+package config
+
+import (
+	"encoding/json"
+	"os"
+	"path/filepath"
+)
+
+type AppConfig struct {
+	Language          string  `json:"language"` // "ru" or "en"
+	FFmpegPath        string  `json:"ffmpegPath"`
+	FFprobePath       string  `json:"ffprobePath"`
+	DefaultEncoder    string  `json:"defaultEncoder"` // libx264, h264_nvenc, libx265, hevc_nvenc
+	DefaultHwDecode   string  `json:"defaultHwDecode"`
+	DefaultPreset     string  `json:"defaultPreset"`
+	DefaultCRF        int     `json:"defaultCrf"`
+	DefaultFPS        int     `json:"defaultFps"` // 0 = original, 60 = 60fps
+	DefaultTune       string  `json:"defaultTune"`
+	DefaultMergeAudio bool    `json:"defaultMergeAudio"`
+	OutputSuffix      string  `json:"outputSuffix"`
+}
+
+func Default() AppConfig {
+	return AppConfig{
+		Language:          "ru",
+		DefaultEncoder:    "libx264",
+		DefaultHwDecode:   "none",
+		DefaultPreset:     "slow",
+		DefaultCRF:        20,
+		DefaultFPS:        60,
+		DefaultTune:       "film",
+		DefaultMergeAudio: true,
+		OutputSuffix:      "_converted",
+	}
+}
+
+func ConfigPath() (string, error) {
+	dir, err := os.UserConfigDir()
+	if err != nil {
+		return "", err
+	}
+	return filepath.Join(dir, "ConvertGUI", "config.json"), nil
+}
+
+func Load() AppConfig {
+	cfg := Default()
+	path, err := ConfigPath()
+	if err != nil {
+		return cfg
+	}
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return cfg
+	}
+	_ = json.Unmarshal(data, &cfg)
+	if cfg.Language == "" {
+		cfg.Language = "ru"
+	}
+	if cfg.DefaultEncoder == "" {
+		cfg.DefaultEncoder = "libx264"
+	}
+	if cfg.DefaultPreset == "" {
+		cfg.DefaultPreset = "slow"
+	}
+	if cfg.DefaultCRF < 0 || cfg.DefaultCRF > 51 {
+		cfg.DefaultCRF = 20
+	}
+	return cfg
+}
+
+func Save(cfg AppConfig) error {
+	path, err := ConfigPath()
+	if err != nil {
+		return err
+	}
+	if err := os.MkdirAll(filepath.Dir(path), 0o755); err != nil {
+		return err
+	}
+	data, err := json.MarshalIndent(cfg, "", "  ")
+	if err != nil {
+		return err
+	}
+	return os.WriteFile(path, data, 0o644)
+}

internal/config/config_test.go

@@ -0,0 +1,42 @@
+package config
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+)
+
+func TestLoadDefaultsAndCRFClamp(t *testing.T) {
+	tmp := t.TempDir()
+	t.Setenv("APPDATA", tmp)
+	t.Setenv("XDG_CONFIG_HOME", tmp)
+
+	cfg := Default()
+	if cfg.DefaultCRF != 20 || cfg.DefaultPreset != "slow" || cfg.Language != "ru" {
+		t.Fatalf("unexpected defaults: %+v", cfg)
+	}
+
+	cfg.DefaultCRF = 99
+	if err := Save(cfg); err != nil {
+		t.Fatalf("save failed: %v", err)
+	}
+	loaded := Load()
+	if loaded.DefaultCRF != 20 {
+		t.Fatalf("expected invalid CRF 99 to reset to 20, got %d", loaded.DefaultCRF)
+	}
+
+	// CRF 0 (lossless) must be preserved
+	cfg.DefaultCRF = 0
+	if err := Save(cfg); err != nil {
+		t.Fatalf("save CRF 0 failed: %v", err)
+	}
+	loadedZero := Load()
+	if loadedZero.DefaultCRF != 0 {
+		t.Fatalf("expected CRF 0 to be preserved, got %d", loadedZero.DefaultCRF)
+	}
+
+	path, _ := ConfigPath()
+	if _, err := os.Stat(filepath.Clean(path)); err != nil {
+		t.Fatalf("config file missing: %v", err)
+	}
+}