main

src/modules/video-ai/video-ai.service.ts

@@ -220,18 +220,17 @@ Every image belongs to a visual universe. Define that universe with specific ref
 
 ❌ BAD: "dark and moody"
 ❌ BAD: "cinematic look"
-✅ GOOD: "Blade Runner 2049 color palette with heavy teal-and-amber contrast, Denis Villeneuve visual language, desolate monumental scale"
-✅ GOOD: "Wes Anderson symmetry with pastel Easter-egg color palette, The Grand Budapest Hotel framing, whimsical yet melancholic tone, perfectly centered subjects"
-✅ GOOD: "National Geographic documentary realism, Planet Earth II visual texture, intimate close-up wildlife photography, David Attenborough's visual signature"
-✅ GOOD: "Studio Ghibli hand-painted watercolor backgrounds with lush green landscapes, Hayao Miyazaki cloudscapes, magical realism atmosphere"
+✅ GOOD: "[Detailed color palette from the chosen style], [Director/Cinematographer name] visual language, desolate monumental scale"
+✅ GOOD: "[Famous Director] symmetry with pastel color palette, whimsical yet melancholic tone, perfectly centered subjects"
+✅ GOOD: "National Geographic documentary realism, intimate close-up photography, true-to-life rendering"
 
 Mood reference options (use 2-3 per scene combined):
-• Film references: "Blade Runner", "Interstellar", "Mad Max: Fury Road", "Spirited Away", "2001: A Space Odyssey", "The Grand Budapest Hotel", "Tenet", "Dune"
+• Film references: Refer to the provided Cinematic Style DNA.
 • Photography references: "Annie Leibovitz portrait lighting", "National Geographic close-up", "Sebastião Salgado black-and-white photojournalism", "Steve McCurry color richness"
 • Art movements: "Renaissance chiaroscuro", "Impressionist broken color", "Art Deco geometry", "Japanese ukiyo-e woodblock", "Bauhaus minimalism", "Surrealist Dalí dreamscapes"
 • Color systems: "70s Kodachrome warm tones", "Fujifilm Velvia saturated", "muted Scandinavian palette", "cyberpunk neon (magenta/teal/violet)", "earthy terracotta and sage"
 
-CRITICAL RULE: Once you establish a visual universe in Scene 1, ALL subsequent scenes MUST stay within that same visual world. If Scene 1 is Blade Runner, Scene 5 cannot suddenly look like Wes Anderson.
+CRITICAL RULE: Once you establish a visual universe in Scene 1 (based on the provided Style DNA), ALL subsequent scenes MUST stay within that EXACT same visual world. Do not randomly switch styles between scenes.
 
 ━━━ LAYER 3: LIGHTING (Source, Direction, Quality) ━━━
 Lighting is the single most important factor in image quality. Never leave it to chance.
@@ -887,14 +886,14 @@ export class VideoAiService {
   /**
    * Video stiline göre varsayılan görsel DNA değerlerini döndürür.
    */
-  private getStyleDNA(videoStyle: string, cinematicReference?: string): StyleDNA {
+  public getStyleDNA(videoStyle: string, cinematicReference?: string): StyleDNA {
     const dnaMap: Record<string, StyleDNA> = {
       CINEMATIC: {
-        reference: cinematicReference ? `${cinematicReference} visual style and cinematography` : 'Denis Villeneuve and Roger Deakins cinematography',
-        lighting: cinematicReference ? `Iconic lighting setup matching the ${cinematicReference} cinematic style` : 'Dramatic key-and-fill lighting with a single strong motivated source casting deep sculpted shadows.',
-        lens: cinematicReference ? `Signature camera lens choice and depth of field suitable for ${cinematicReference}` : 'Shot on 35mm anamorphic lens with shallow depth of field f/2.0 and characteristic oval bokeh.',
-        color: cinematicReference ? `Color grading and palette uniquely associated with ${cinematicReference}` : 'Teal-and-orange blockbuster color grade with desaturated midtones and crushed blacks.',
-        texture: cinematicReference ? `Film grain and visual texture evoking the ${cinematicReference} experience` : 'Subtle Kodak Vision3 film grain, anamorphic horizontal lens flare, slight vignette darkening corners.',
+        reference: cinematicReference ? `${cinematicReference} visual style and cinematography` : 'High-end cinematic production with professional cinematography techniques',
+        lighting: cinematicReference ? `Iconic lighting setup matching the ${cinematicReference} cinematic style` : 'Dramatic key-and-fill lighting with motivated light sources, sculpted shadows, and cinematic depth.',
+        lens: cinematicReference ? `Signature camera lens choice and depth of field suitable for ${cinematicReference}` : 'Shot on 35mm anamorphic lens with cinematic depth of field and professional framing.',
+        color: cinematicReference ? `Color grading and palette uniquely associated with ${cinematicReference}` : 'Professional cinematic color grading with balanced contrast, natural skin tones, and atmospheric depth.',
+        texture: cinematicReference ? `Film grain and visual texture evoking the ${cinematicReference} experience` : 'Subtle organic film grain, natural lens characteristics, cinematic light bloom on practical sources.',
       },
       DOCUMENTARY: {
         reference: 'National Geographic and Planet Earth II',
@@ -1227,15 +1226,45 @@ export class VideoAiService {
     let parsed: GeneratedScript;
     try {
       let cleanText = rawText.trim();
-      if (cleanText.startsWith('```json')) cleanText = cleanText.slice(7);
-      if (cleanText.startsWith('```')) cleanText = cleanText.slice(3);
-      if (cleanText.endsWith('```')) cleanText = cleanText.slice(0, -3);
+
+      // Pass 1: Markdown code fence temizliği (başta, sonda, ortada)
+      cleanText = cleanText.replace(/^```(?:json)?\s*/i, '');
+      cleanText = cleanText.replace(/\s*```\s*$/i, '');
+      // Ortada kalan fence'leri de temizle
+      cleanText = cleanText.replace(/```(?:json)?\s*/gi, '');
+
+      // Pass 2: BOM ve kontrol karakterleri temizliği
+      cleanText = cleanText.replace(/^\uFEFF/, '');
+      // JSON-dışı kontrol karakterleri kaldır (tab, newline, CR hariç)
+      cleanText = cleanText.replace(/[\x00-\x08\x0B\x0C\x0E-\x1F]/g, '');
+
+      // Pass 3: Trailing comma — JSON'da yasak ama Gemini bazen koyuyor
+      cleanText = cleanText.replace(/,\s*([}\]])/g, '$1');
+
       cleanText = cleanText.trim();
-      parsed = JSON.parse(cleanText);
-    } catch {
-      this.logger.error(`JSON parse hatası: ${rawText.substring(0, 500)}`);
+
+      // İlk deneme: Direkt parse
+      try {
+        parsed = JSON.parse(cleanText);
+      } catch {
+        // Pass 4: Kesilmiş JSON kurtarma — son geçerli } veya ] bul
+        const lastBrace = cleanText.lastIndexOf('}');
+        const lastBracket = cleanText.lastIndexOf(']');
+        const cutPoint = Math.max(lastBrace, lastBracket);
+
+        if (cutPoint > 0) {
+          const truncated = cleanText.substring(0, cutPoint + 1);
+          this.logger.warn(`JSON kesilmiş olabilir — son ${cleanText.length - cutPoint - 1} karakter atıldı, kurtarma deneniyor...`);
+          parsed = JSON.parse(truncated);
+        } else {
+          throw new Error('Kurtarılabilir JSON bulunamadı');
+        }
+      }
+    } catch (parseError) {
+      this.logger.error(`JSON parse hatası — İlk 1000 karakter:\n${rawText.substring(0, 1000)}`);
+      this.logger.error(`Parse error: ${parseError instanceof Error ? parseError.message : parseError}`);
       throw new InternalServerErrorException(
-        'AI yanıtı geçerli JSON formatında değil.',
+        'AI yanıtı geçerli JSON formatında değil. Lütfen "Yeniden Üret" butonuyla tekrar deneyin.',
       );
     }
 
@@ -1282,6 +1311,55 @@ export class VideoAiService {
     return parsed;
   }
 
+  /**
+   * Tekil görsel prompt'u stil DNA ile zenginleştirir.
+   * regenerateScene gibi metotlardan dönen ham visualPrompt'a
+   * 5-Layer Architecture™ özelliklerini uygular.
+   */
+  enrichSingleVisualPrompt(
+    visualPrompt: string,
+    videoStyle: string,
+    cinematicReference?: string,
+    aspectRatio?: string,
+    isHookScene: boolean = false,
+  ): string {
+    const styleDNA = this.getStyleDNA(videoStyle, cinematicReference);
+    const defaultNegative = 'Avoid: text overlays, watermarks, brand logos, recognizable celebrity faces, distorted anatomy, extra fingers, blurry faces, stock photo aesthetic, oversaturated CGI plastic look, generic clip art, UI elements';
+    let vp = visualPrompt;
+    const wordCount = vp.split(/\s+/).length;
+    const minWords = isHookScene ? 80 : 50;
+
+    // 1. Minimum kelime kontrolü — eksikse stil DNA'sından zenginleştir
+    if (wordCount < minWords) {
+      vp = this.padVisualPrompt(vp, styleDNA, minWords, isHookScene);
+    }
+
+    // 2. Visual continuity anchor
+    // Önceki prefix'i temizle ki eski stiller yapışıp kalmasın (örn: Blade Runner)
+    vp = vp.replace(/^Continuing the .*? visual language (established in previous scenes|from previous scenes)?:\s*/i, '');
+    
+    if (!isHookScene) {
+      vp = `Continuing the ${styleDNA.reference} visual language established in previous scenes: ${vp}`;
+    }
+
+    // 3. Aspect ratio hint
+    if (aspectRatio && !vp.toLowerCase().includes('framing') && !vp.toLowerCase().includes('composition')) {
+      const arHint = aspectRatio === 'PORTRAIT_9_16'
+        ? 'Vertical framing optimized for mobile viewing.'
+        : aspectRatio === 'LANDSCAPE_16_9'
+          ? 'Wide cinematic horizontal composition.'
+          : 'Square centered symmetrical framing.';
+      vp = `${vp} ${arHint}`;
+    }
+
+    // 4. Negative prompt
+    if (!vp.toLowerCase().includes('avoid:')) {
+      vp = `${vp} ${defaultNegative}`;
+    }
+
+    return vp;
+  }
+
   /**
    * Tekil sahne yeniden üretimi — sınırlı bağlam ile sadece 1 sahne üretir.
    */
@@ -1321,4 +1399,100 @@ export class VideoAiService {
       throw new InternalServerErrorException('Sahne yeniden üretilemedi.');
     }
   }
+
+  /**
+   * Projenin tüm görsel promptlarını yeni bir stil DNA'sıyla yeniden yazar.
+   * Narration ve ID'leri korur, sadece görsel betimlemeleri AI ile baştan yazar.
+   */
+  async rewriteAllVisualPrompts(
+    scenes: { id: string; order: number; narrationText: string; visualPrompt: string }[],
+    videoStyle: string,
+    cinematicReference?: string,
+    aspectRatio?: string,
+  ): Promise<{ id: string; visualPrompt: string }[]> {
+    if (!this.genAI) {
+      throw new InternalServerErrorException('AI servisi etkin değil.');
+    }
+
+    const styleDNA = this.getStyleDNA(videoStyle, cinematicReference);
+
+    const contextPrompt = `
+You are an expert cinematographer. I have a video script with ${scenes.length} scenes.
+I changed the project's visual style. I need you to REWRITE ONLY the "visualPrompt" for each scene so they perfectly match the new style.
+DO NOT change the scene IDs.
+
+═══ NEW STYLE DNA ═══
+Reference: ${styleDNA.reference}
+Lighting: ${styleDNA.lighting}
+Lens: ${styleDNA.lens}
+Color: ${styleDNA.color}
+Texture: ${styleDNA.texture}
+═════════════════════
+
+SCENES:
+${JSON.stringify(
+  scenes.map((s) => ({
+    id: s.id,
+    order: s.order,
+    narrationText: s.narrationText,
+    oldVisualPrompt: s.visualPrompt,
+  })),
+  null,
+  2,
+)}
+
+CRITICAL: 
+- Return valid JSON only.
+- The visual prompts must be extremely descriptive, 50+ words, containing lighting, mood, color, and lens info.
+- Write purely in English.
+- Do NOT include any text overlays or watermarks in the prompts.
+
+OUTPUT FORMAT (JSON ONLY, NO MARKDOWN FENCES):
+{
+  "scenes": [
+    {
+      "id": "SCENE-ID-HERE",
+      "visualPrompt": "new highly detailed cinematic visual prompt here..."
+    }
+  ]
+}
+`;
+
+    try {
+      const response = await this.genAI.models.generateContent({
+        model: this.modelName,
+        contents: contextPrompt,
+        config: {
+          responseMimeType: 'application/json',
+          temperature: 0.7,
+        },
+      });
+
+      const rawText = response.text || '';
+      const cleaned = rawText.replace(/```json\n?/g, '').replace(/```\n?/g, '').trim();
+      const parsed = JSON.parse(cleaned);
+
+      if (!parsed.scenes || !Array.isArray(parsed.scenes)) {
+        throw new Error('Geçersiz yanıt yapısı.');
+      }
+
+      return parsed.scenes.map((s: any) => {
+        // Zenginleştir (continuity anchor + aspect ratio padding vs)
+        const enrichedVp = this.enrichSingleVisualPrompt(
+          s.visualPrompt,
+          videoStyle,
+          cinematicReference,
+          aspectRatio,
+          false,
+        );
+        return {
+          id: s.id,
+          visualPrompt: enrichedVp,
+        };
+      });
+    } catch (error) {
+      this.logger.error(`Toplu prompt yenileme hatası: ${error}`);
+      throw new InternalServerErrorException('Visual promptlar yenilenemedi.');
+    }
+  }
 }