Multi lingua, hotfixes and design

server/dist/api/books.js

@@ -46,16 +46,22 @@ Core Idea: ${idea}
 
 Generate a detailed chapter outline following the structure: ${template.structure.join(' → ')}
 
-IMPORTANT: The response MUST be written in ${targetLang}. All text values (title, logline, chapter summaries, etc) must be translated to ${targetLang}. Keep the exact JSON KEYS in English.
+CRITICAL INSTRUCTIONS:
+- You MUST respond with VALID JSON only
+- Do NOT include any text before or after the JSON
+- Do NOT wrap the JSON in markdown code blocks
+- All text content (titles, summaries, etc.) MUST be in ${targetLang}
+- JSON keys MUST remain in English
+- Ensure the JSON is properly formatted and parseable
 
-Return the response in JSON format:
+Required JSON format:
 {
-  "title": "Book Title",
+  "title": "Book Title in ${targetLang}",
   "genre": "${genre}",
-  "logline": "One sentence summary",
+  "logline": "One sentence summary in ${targetLang}",
   "chapters": [
-    {"number": 1, "title": "Chapter Title", "summary": "Brief description"},
-    ...
+    {"number": 1, "title": "Chapter Title in ${targetLang}", "summary": "Brief description in ${targetLang}"},
+    {"number": 2, "title": "Chapter Title in ${targetLang}", "summary": "Brief description in ${targetLang}"}
   ]
 }`;
         const response = await axios_1.default.post('https://openrouter.ai/api/v1/chat/completions', {
@@ -74,22 +80,29 @@ Return the response in JSON format:
         const content = response.data.choices[0].message.content;
         console.log('=== Outline AI Response ===');
         console.log('Raw content:', content);
-        // Try to parse JSON from response
+        console.log('Target language:', targetLang);
+        // Try to parse JSON from response - improved parsing for multilingual content
         let outline;
-        const jsonMatch = content.match(/\{[\s\S]*\}/);
-        if (jsonMatch) {
-            try {
-                outline = JSON.parse(jsonMatch[0]);
+        try {
+            // First try to find JSON object
+            const jsonMatch = content.match(/\{[\s\S]*\}/);
+            if (jsonMatch) {
+                // Clean the JSON string to handle potential encoding issues
+                let jsonString = jsonMatch[0];
+                // Remove any markdown formatting that might interfere
+                jsonString = jsonString.replace(/```json\s*/g, '').replace(/```\s*$/g, '');
+                outline = JSON.parse(jsonString);
                 console.log('Parsed outline:', outline);
             }
-            catch (parseError) {
-                console.error('JSON parse error:', parseError);
-                outline = { raw: content, error: 'Failed to parse JSON' };
+            else {
+                console.error('No JSON object found in response');
+                outline = { raw: content, error: 'No JSON found in AI response' };
             }
         }
-        else {
-            console.error('No JSON object found in response');
-            outline = { raw: content, error: 'No JSON found' };
+        catch (parseError) {
+            console.error('JSON parse error:', parseError);
+            console.error('Failed content:', content);
+            outline = { raw: content, error: 'Failed to parse JSON from AI response' };
         }
         res.json({ outline });
     }
@@ -117,8 +130,11 @@ Summary: ${chapterSummary}
 Tone: ${template.defaults.tone}
 POV: ${template.defaults.pov}
 
-IMPORTANT: The entire chapter content MUST be written strictly in ${targetLang}.
-`;
+CRITICAL: Write the ENTIRE chapter content in ${targetLang} only. Do NOT include any English text.
+Write a complete, engaging chapter that matches the summary above.
+The chapter should be between 1500-3000 words.
+
+IMPORTANT: Respond with the chapter content directly, without any introduction, conclusion, or formatting markers. Just the narrative text in ${targetLang}.`;
         if (previousContent) {
             prompt += `\n\nPrevious content for context:\n${previousContent.substring(0, 2000)}...`;
         }
@@ -136,6 +152,11 @@ IMPORTANT: The entire chapter content MUST be written strictly in ${targetLang}.
             }
         });
         const content = response.data.choices[0].message.content;
+        console.log('=== Chapter AI Response ===');
+        console.log('Target language:', targetLang);
+        console.log('Chapter title:', chapterTitle);
+        console.log('Content length:', content.length);
+        console.log('Content preview:', content.substring(0, 200) + '...');
         res.json({
             content,
             chapterTitle