Adiciona endpoint de download de videos

.gitignore

@@ -0,0 +1,3 @@
+.DS_Store
+
+/videos

dockerfile

@@ -5,6 +5,10 @@ ENV PYTHONUNBUFFERED=1
 
 WORKDIR /app
 
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends ffmpeg && \
+    rm -rf /var/lib/apt/lists/*
+
 COPY requirements.txt .
 RUN pip install --no-cache-dir -r requirements.txt
 

main.py

@@ -1,12 +1,17 @@
+import os
+import uuid
+import re
+
 from typing import Optional
 from fastapi import FastAPI, HTTPException, Query
 from youtube_transcript_api import YouTubeTranscriptApi
 from youtube_transcript_api.formatters import SRTFormatter
 from youtube_transcript_api._errors import TranscriptsDisabled, NoTranscriptFound
 from yt_dlp import YoutubeDL
+from unidecode import unidecode
 
 app = FastAPI(
-    title="YouTube Transcript & Metadata API",
+    title="YouTube Transcript, Download and Metadata API",
     version="1.0.0"
 )
 
@@ -31,7 +36,6 @@ def get_transcript(
             raise HTTPException(status_code=400, detail=str(e))
     else:
         video_id = videoId
-    
 
     try:
         ytt_api = YouTubeTranscriptApi()
@@ -41,12 +45,11 @@ def get_transcript(
         if not result:
             raise NoTranscriptFound("Nenhuma transcrição encontrada para este vídeo")
     except TranscriptsDisabled:
-        raise HTTPException(status_code=404, error="Transcrição desativada para este vídeo")
+        raise HTTPException(status_code=404, detail="Transcrição desativada para este vídeo")
     except NoTranscriptFound:
-        raise HTTPException(status_code=404, error="Nenhuma transcrição encontrada")
+        raise HTTPException(status_code=404, detail="Nenhuma transcrição encontrada")
     except Exception as e:
-        raise HTTPException(status_code=500, error=f"Erro ao obter transcrição: {e}")
-
+        raise HTTPException(status_code=500, detail=f"Erro ao obter transcrição: {e}")
 
     return {
         "video_id": video_id,
@@ -81,3 +84,85 @@ def get_video_metadata(
         raise HTTPException(status_code=500, detail=f"Erro ao extrair metadata: {e}")
 
     return info
+
+@app.get("/download-video")
+def download_video(
+    url: Optional[str] = Query(None, description="URL completa do vídeo"),
+    videoId: Optional[str] = Query(None, alias="videoId", description="ID do vídeo no YouTube"),
+    qualidade: str = Query("high", description="Qualidade do vídeo: low, medium, high")
+):
+    if not url and not videoId:
+        raise HTTPException(status_code=400, detail="Informe 'url' ou 'videoId'")
+    if url:
+        target = url
+        try:
+            video_id = extract_video_id(url)
+        except ValueError as e:
+            raise HTTPException(status_code=400, detail=str(e))
+    else:
+        target = f"https://www.youtube.com/watch?v={videoId}"
+        video_id = videoId
+
+    quality_map = {
+        "low": "bestvideo[height<=480]+bestaudio/best[height<=480]",
+        "medium": "bestvideo[height<=720]+bestaudio/best[height<=720]",
+        "high": "bestvideo+bestaudio/best"
+    }
+    qualidade = qualidade.lower()
+    if qualidade not in quality_map:
+        raise HTTPException(status_code=400, detail="Qualidade deve ser: low, medium ou high")
+
+    videos_dir = "/app/videos"
+    os.makedirs(videos_dir, exist_ok=True)
+
+    unique_id = str(uuid.uuid4())
+    output_template = os.path.join(videos_dir, f"{unique_id}.%(ext)s")
+
+    ydl_opts = {
+        "format": quality_map[qualidade],
+        "outtmpl": output_template,
+        "quiet": True,
+        "noplaylist": True,
+        "merge_output_format": "mp4",
+    }
+
+    try:
+        with YoutubeDL(ydl_opts) as ydl:
+            base = ydl.extract_info(target, download=False)
+            title = base.get("title", unique_id)
+            clean_title = unidecode(title)
+            clean_title = re.sub(r"[^\w\s-]", "", clean_title)
+            clean_title = clean_title.replace(" ", "_")
+            clean_title = re.sub(r"_+", "_", clean_title)
+            clean_title = clean_title.strip("_")
+            filename = f"{clean_title}_{qualidade}.mp4"
+            final_path = os.path.join(videos_dir, filename)
+
+            print('Info ok')
+            
+            if os.path.exists(final_path):
+                return {
+                    "videoId": video_id,
+                    "filename": filename
+                }
+            
+            print('Lets download')
+            
+            result = ydl.extract_info(target, download=True)
+
+            if "requested_downloads" in result and len(result["requested_downloads"]) > 0:
+                real_file_path = result["requested_downloads"][0]["filepath"]
+            elif "filepath" in result:
+                real_file_path = result["filepath"]
+            else:
+                real_file_path = output_template.replace("%(ext)s", "mp4")
+
+            os.rename(real_file_path, final_path)
+
+    except Exception as e:
+        raise HTTPException(status_code=500, detail=f"Erro ao baixar vídeo: {e}")
+
+    return {
+        "videoId": video_id,
+        "filename": filename
+    }

requirements.txt

@@ -2,3 +2,4 @@ fastapi
 uvicorn[standard]
 youtube-transcript-api==1.2.1
 yt-dlp
+unidecode