feat: Add precedent caching mechanism via txt and supabase

src/controllers/precedent.controller.ts

@@ -1,6 +1,9 @@
 import { Request, Response } from 'express';
 import { AuthenticatedRequest } from '../middleware/auth';
 import { callOllama } from '../lib/aiClient';
+import { supabase } from '../lib/supabase';
+import fs from 'fs';
+import path from 'path';
 
 export const searchPrecedents = async (req: Request, res: Response) => {
   try {
@@ -133,3 +136,56 @@ export const getPrecedentDocument = async (req: Request, res: Response) => {
     res.status(500).json({ error: error.message || 'Internal Server Error' });
   }
 };
+
+export const cachePrecedentDocument = async (req: Request, res: Response) => {
+  try {
+    const { item, content } = req.body;
+    
+    if (!item || !item.documentId || !content) {
+      return res.status(400).json({ error: 'Eksik veri (item veya content)' });
+    }
+
+    const documentId = String(item.documentId);
+    const dir = path.join(process.cwd(), 'uploads', 'precedents');
+    
+    if (!fs.existsSync(dir)) {
+      fs.mkdirSync(dir, { recursive: true });
+    }
+
+    const filePath = path.join(dir, `${documentId}.txt`);
+    
+    // 1. Txt Olarak Kaydet (CDN / Sunucu depolama)
+    if (!fs.existsSync(filePath)) {
+      fs.writeFileSync(filePath, content, 'utf8');
+      
+      // 2. Supabase DB'ye Metadata Kaydet (Lazy Caching & Meilisearch Indexing)
+      try {
+        const { error } = await supabase
+          .from('cached_precedents')
+          .upsert({
+            document_id: documentId,
+            mahkeme: item.mahkeme || '',
+            karar_no: item.karar_no || '',
+            esas_no: item.esas_no || '',
+            tarih: item.tarih || '',
+            konu: item.konu || '',
+            ozet: item.ozet || '',
+            created_at: new Date().toISOString()
+          }, { onConflict: 'document_id' });
+          
+        if (error) {
+          console.error('[Cache] Supabase kayıt hatası:', error.message);
+        } else {
+          console.log(`[Cache] Başarıyla kaydedildi: ${documentId}`);
+        }
+      } catch (dbErr) {
+        console.error('[Cache] Supabase try-catch hatası:', dbErr);
+      }
+    }
+    
+    res.json({ success: true, message: 'Ön belleğe alındı' });
+  } catch (error: any) {
+    console.error('Cache Precedent Document Error:', error);
+    res.status(500).json({ error: error.message || 'Internal Server Error' });
+  }
+};