feat(api): fps tabanlı altyazı eşleştirmesi ekle

Video ve altyazı FPS değerlerini karşılaştırarak daha doğru eşleştirme
yapar. Tam eşleşme ve token eşleşmesi bulunamadığında FPS uyumlu
altyazıları önceliklendirir. FFprobe çıktısından FPS değerini normalize
eder ve karşılaştırma için kullanır.

services/api/src/lib/turkcealtyaziReal.ts

@@ -16,7 +16,7 @@ export interface RealTaCandidate {
   releaseHints: string[];
   isHI: boolean;
   isForced: boolean;
-  strategy?: 'exact' | 'token' | 'fallback' | 'default' | 'package_fallback';
+  strategy?: 'exact' | 'token' | 'fps' | 'fallback' | 'default' | 'package_fallback';
   isPackage?: boolean;
 }
 
@@ -113,6 +113,34 @@ function normalizeReleaseHints(raw: string): string[] {
     .slice(0, 10);
 }
 
+function normalizeFpsText(raw?: string | number | null): string | null {
+  if (raw === undefined || raw === null) return null;
+  const s = String(raw).trim().replace(/,/g, '.').replace(/\s+/g, '');
+  if (!s) return null;
+
+  if (s.includes('/')) {
+    const [a, b] = s.split('/');
+    const n = Number(a);
+    const d = Number(b);
+    if (!Number.isFinite(n) || !Number.isFinite(d) || d === 0) return null;
+    const v = Number((n / d).toFixed(3));
+    return Number.isInteger(v) ? String(v) : String(v);
+  }
+
+  const v = Number(s);
+  if (!Number.isFinite(v)) return null;
+  const rounded = Number(v.toFixed(3));
+  return Number.isInteger(rounded) ? String(rounded) : String(rounded);
+}
+
+function fpsEquals(a?: string | null, b?: string | null): boolean {
+  if (!a || !b) return false;
+  const an = Number(a);
+  const bn = Number(b);
+  if (!Number.isFinite(an) || !Number.isFinite(bn)) return false;
+  return Math.abs(an - bn) <= 0.01;
+}
+
 function abs(base: string, maybeRelative: string): string {
   return new URL(maybeRelative, base).toString();
 }
@@ -268,7 +296,8 @@ function pickSubPageFromMovieDetail(
     title: string;
     releaseHints: string[];
     isHI: boolean;
-    strategy: 'exact' | 'token' | 'fallback' | 'default' | 'package_fallback';
+    strategy: 'exact' | 'token' | 'fps' | 'fallback' | 'default' | 'package_fallback';
+    fps?: string | null;
     isPackage?: boolean;
   };
   noMatchReason?: 'episode_not_matched' | 'release_not_matched' | 'no_sub_rows';
@@ -276,6 +305,11 @@ function pickSubPageFromMovieDetail(
   const $ = cheerio.load(html);
   const wantedRelease = normalizeText(params.release || '');
   const wantedReleaseTokens = wantedRelease.split(/\s+/).filter(Boolean);
+  const wantedFps = normalizeFpsText(
+    params.mediaInfo?.video?.fps ??
+      params.mediaInfo?.video?.avg_frame_rate ??
+      params.mediaInfo?.video?.r_frame_rate
+  );
   const wantedSeason = params.type === 'tv' ? params.season : undefined;
   const wantedEpisode = params.type === 'tv' ? params.episode : undefined;
   const rows = $('[class*="altsonsez"]');
@@ -292,6 +326,7 @@ function pickSubPageFromMovieDetail(
     season?: number;
     episode?: number;
     isPackage: boolean;
+    fps?: string | null;
   }> = [];
 
   rows.each((_, row) => {
@@ -307,6 +342,7 @@ function pickSubPageFromMovieDetail(
     const isTr = $(row).find('.flagtr').length > 0;
     const indirmeRaw = ($(row).find('.alindirme').text() || '').replace(/\./g, '').replace(/,/g, '').trim();
     const downloadCount = Number(indirmeRaw.replace(/[^\d]/g, '')) || 0;
+    const fps = normalizeFpsText(($(row).find('.alfps').text() || '').trim());
     const { season, episode, isPackage } = parseSeasonEpisodeFromRow($, row);
 
     if (params.type === 'tv') {
@@ -341,7 +377,8 @@ function pickSubPageFromMovieDetail(
       downloadCount,
       season,
       episode,
-      isPackage
+      isPackage,
+      fps
     });
   });
 
@@ -366,14 +403,7 @@ function pickSubPageFromMovieDetail(
     }
   }
 
-  if (!wantedRelease || forcedStrategy === 'package_fallback') {
-    const picked = selectedPool.sort((a, b) => b.score - a.score || b.downloadCount - a.downloadCount)[0];
-    if (forcedStrategy === 'package_fallback') {
-      return { picked: { ...picked, strategy: 'package_fallback', isPackage: true } };
-    }
-    return { picked: { ...picked, strategy: 'default' } };
-  }
-
+  if (wantedRelease && forcedStrategy !== 'package_fallback') {
     const exact = selectedPool
       .filter((c) => c.releaseExact)
       .sort((a, b) => b.score - a.score || b.downloadCount - a.downloadCount)[0];
@@ -387,6 +417,24 @@ function pickSubPageFromMovieDetail(
     if (token) {
       return { picked: { ...token, strategy: 'token' } };
     }
+  }
+
+  const fpsMatched = wantedFps
+    ? selectedPool.find((c) => fpsEquals(c.fps || null, wantedFps))
+    : undefined;
+  if (fpsMatched) {
+    return { picked: { ...fpsMatched, strategy: 'fps' } };
+  }
+
+  if (forcedStrategy === 'package_fallback') {
+    const picked = selectedPool.sort((a, b) => b.score - a.score || b.downloadCount - a.downloadCount)[0];
+    return { picked: { ...picked, strategy: 'package_fallback', isPackage: true } };
+  }
+
+  if (!wantedRelease) {
+    const picked = selectedPool.sort((a, b) => b.score - a.score || b.downloadCount - a.downloadCount)[0];
+    return { picked: { ...picked, strategy: 'default' } };
+  }
 
   if (params.type === 'tv') {
     // TV'de once bolum dogrulugu, sonra release gelir. Release bulunamasa da en iyi bolum satirini kullan.
@@ -502,6 +550,12 @@ export async function searchTurkceAltyaziReal(params: SearchParams): Promise<Rea
       subUrl: pickedSub.subUrl,
       releaseHints: pickedSub.releaseHints,
       strategy: pickedSub.strategy,
+      fps: pickedSub.fps,
+      wantedFps: normalizeFpsText(
+        params.mediaInfo?.video?.fps ??
+          params.mediaInfo?.video?.avg_frame_rate ??
+          params.mediaInfo?.video?.r_frame_rate
+      ),
       isPackage: pickedSub.isPackage === true
     });
 

services/core/src/utils/ffprobe.ts

@@ -3,6 +3,25 @@ import { promisify } from 'node:util';
 
 const execFileAsync = promisify(execFile);
 
+function parseFraction(raw?: string): number | null {
+  if (!raw) return null;
+  const parts = raw.split('/');
+  if (parts.length === 2) {
+    const n = Number(parts[0]);
+    const d = Number(parts[1]);
+    if (!Number.isFinite(n) || !Number.isFinite(d) || d === 0) return null;
+    return n / d;
+  }
+  const v = Number(raw);
+  return Number.isFinite(v) ? v : null;
+}
+
+function normalizeFpsValue(raw?: string): number | null {
+  const v = parseFraction(raw);
+  if (v === null) return null;
+  return Number(v.toFixed(3));
+}
+
 export async function analyzeWithFfprobe(path: string): Promise<any> {
   const { stdout } = await execFileAsync('ffprobe', [
     '-v',
@@ -25,7 +44,8 @@ export async function analyzeWithFfprobe(path: string): Promise<any> {
           codec_name: video.codec_name,
           width: video.width,
           height: video.height,
-          r_frame_rate: video.r_frame_rate
+          r_frame_rate: video.r_frame_rate,
+          fps: normalizeFpsValue(video.avg_frame_rate || video.r_frame_rate)
         }
       : null,
     audio,
@@ -39,7 +59,7 @@ export async function analyzeWithFfprobe(path: string): Promise<any> {
 
 export function fallbackMediaInfo(): any {
   return {
-    video: { codec_name: 'unknown', width: 1920, height: 1080, r_frame_rate: '24/1' },
+    video: { codec_name: 'unknown', width: 1920, height: 1080, r_frame_rate: '24/1', fps: 24 },
     audio: [{ codec_name: 'unknown', channels: 2, language: 'und' }],
     format: { duration: '0', bit_rate: '0', format_name: 'matroska' }
   };