AI Image and Audio Generation Improvements.

AI Video Generation Pre-Flight Checklist. Cost Estimate Improvements.

frontend/src/components/YouTubeCreator/hooks/useGenerationState.ts

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+// Hook for managing generation state
+import { useState } from 'react';
+import { AudioGenerationSettings } from '../../shared/AudioSettingsModal';
+
+export const useGenerationState = () => {
+  const [showAudioSettingsModal, setShowAudioSettingsModal] = useState(false);
+  const [showImageSettingsModal, setShowImageSettingsModal] = useState(false);
+
+  const [currentAudioSettings, setCurrentAudioSettings] = useState<AudioGenerationSettings>({
+    voiceId: "Casual_Guy",
+    speed: 1.15,
+    volume: 1.0,
+    pitch: 0.0,
+    emotion: "happy",
+    englishNormalization: true,
+    bitrate: 128000,
+    channel: "1",
+    format: "mp3",
+    enableSyncMode: true,
+  });
+
+  const [imageGenerationProgress, setImageGenerationProgress] = useState(0);
+  const [imageGenerationStatus, setImageGenerationStatus] = useState<string>('');
+  const [audioGenerationProgress, setAudioGenerationProgress] = useState(0);
+  const [audioGenerationStatus, setAudioGenerationStatus] = useState<string>('');
+
+  const resetImageGeneration = () => {
+    setImageGenerationStatus('');
+    setImageGenerationProgress(0);
+  };
+
+  const resetAudioGeneration = () => {
+    setAudioGenerationStatus('');
+    setAudioGenerationProgress(0);
+  };
+
+  return {
+    showAudioSettingsModal,
+    setShowAudioSettingsModal,
+    showImageSettingsModal,
+    setShowImageSettingsModal,
+    currentAudioSettings,
+    setCurrentAudioSettings,
+    imageGenerationProgress,
+    setImageGenerationProgress,
+    imageGenerationStatus,
+    setImageGenerationStatus,
+    audioGenerationProgress,
+    setAudioGenerationProgress,
+    audioGenerationStatus,
+    setAudioGenerationStatus,
+    resetImageGeneration,
+    resetAudioGeneration,
+  };
+};