dev24 foundation: implement state manager, CRF/VBR modes, unified player integration

internal/state/convert_manager.go

@@ -1,117 +0,0 @@
-package state
-
-import (
-	"strings"
-	"sync"
-)
-
-// ConvertManager centralizes convert UI state and change notifications.
-// It is intentionally UI-agnostic; widgets should subscribe via callbacks.
-type ConvertManager struct {
-	mu                  sync.RWMutex
-	quality             string
-	bitrateMode         string
-	manualQualityOption string
-	onQualityChange     []func(string)
-	onBitrateModeChange []func(string)
-}
-
-func NewConvertManager(quality, bitrateMode, manualQualityOption string) *ConvertManager {
-	if strings.TrimSpace(manualQualityOption) == "" {
-		manualQualityOption = "Manual (CRF)"
-	}
-	return &ConvertManager{
-		quality:             quality,
-		bitrateMode:         bitrateMode,
-		manualQualityOption: manualQualityOption,
-	}
-}
-
-func (m *ConvertManager) Quality() string {
-	m.mu.RLock()
-	defer m.mu.RUnlock()
-	return m.quality
-}
-
-func (m *ConvertManager) BitrateMode() string {
-	m.mu.RLock()
-	defer m.mu.RUnlock()
-	return m.bitrateMode
-}
-
-func (m *ConvertManager) ManualQualityOption() string {
-	m.mu.RLock()
-	defer m.mu.RUnlock()
-	return m.manualQualityOption
-}
-
-func (m *ConvertManager) SetQuality(val string) bool {
-	m.mu.Lock()
-	if m.quality == val {
-		m.mu.Unlock()
-		return false
-	}
-	m.quality = val
-	callbacks := append([]func(string){}, m.onQualityChange...)
-	m.mu.Unlock()
-
-	for _, cb := range callbacks {
-		cb(val)
-	}
-	return true
-}
-
-func (m *ConvertManager) SetBitrateMode(val string) bool {
-	m.mu.Lock()
-	if m.bitrateMode == val {
-		m.mu.Unlock()
-		return false
-	}
-	m.bitrateMode = val
-	callbacks := append([]func(string){}, m.onBitrateModeChange...)
-	m.mu.Unlock()
-
-	for _, cb := range callbacks {
-		cb(val)
-	}
-	return true
-}
-
-func (m *ConvertManager) OnQualityChange(fn func(string)) {
-	if fn == nil {
-		return
-	}
-	m.mu.Lock()
-	m.onQualityChange = append(m.onQualityChange, fn)
-	m.mu.Unlock()
-}
-
-func (m *ConvertManager) OnBitrateModeChange(fn func(string)) {
-	if fn == nil {
-		return
-	}
-	m.mu.Lock()
-	m.onBitrateModeChange = append(m.onBitrateModeChange, fn)
-	m.mu.Unlock()
-}
-
-func (m *ConvertManager) IsManualQuality() bool {
-	m.mu.RLock()
-	defer m.mu.RUnlock()
-	return m.quality == m.manualQualityOption
-}
-
-func NormalizeBitrateMode(mode string) string {
-	switch {
-	case strings.HasPrefix(mode, "CRF"):
-		return "CRF"
-	case strings.HasPrefix(mode, "CBR"):
-		return "CBR"
-	case strings.HasPrefix(mode, "VBR"):
-		return "VBR"
-	case strings.HasPrefix(mode, "Target Size"):
-		return "Target Size"
-	default:
-		return mode
-	}
-}