Add FastAPI main app

backend/main.py

@@ -0,0 +1,102 @@
+"""ViralClipFactory - FastAPI Application Entry Point."""
+import os
+import logging
+from pathlib import Path
+from contextlib import asynccontextmanager
+from fastapi import FastAPI
+from fastapi.staticfiles import StaticFiles
+from fastapi.middleware.cors import CORSMiddleware
+from fastapi.responses import FileResponse
+
+from .routers import ingest, analyze, generate
+
+# Configure logging
+logging.basicConfig(
+    level=logging.INFO,
+    format="%(asctime)s [%(levelname)s] %(name)s: %(message)s"
+)
+logger = logging.getLogger(__name__)
+
+# Ensure temp directory exists
+TEMP_DIR = os.environ.get("TEMP_DIR", "/tmp/viralclipfactory")
+Path(TEMP_DIR).mkdir(parents=True, exist_ok=True)
+
+
+@asynccontextmanager
+async def lifespan(app: FastAPI):
+    """App lifespan: startup and shutdown."""
+    logger.info("🎬 ViralClipFactory starting up...")
+    logger.info(f"Temp directory: {TEMP_DIR}")
+    yield
+    logger.info("🎬 ViralClipFactory shutting down...")
+
+
+# Create FastAPI app
+app = FastAPI(
+    title="ViralClipFactory",
+    description="AI-powered viral short clip generator from long-form video",
+    version="1.0.0",
+    lifespan=lifespan,
+)
+
+# CORS middleware for frontend
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+# Include routers
+app.include_router(ingest.router)
+app.include_router(analyze.router)
+app.include_router(generate.router)
+
+# Serve frontend static files
+FRONTEND_DIR = Path(__file__).parent.parent / "frontend" / "dist"
+if FRONTEND_DIR.exists():
+    app.mount("/assets", StaticFiles(directory=str(FRONTEND_DIR / "assets")), name="static-assets")
+
+
+@app.get("/api/health")
+async def health_check():
+    """Health check endpoint."""
+    return {
+        "status": "healthy",
+        "service": "ViralClipFactory",
+        "version": "1.0.0"
+    }
+
+
+@app.get("/api/config")
+async def get_config():
+    """Get available configuration options."""
+    from .models.schemas import CaptionStyle, ColorGrade, MusicGenre, VoicePreset
+    
+    return {
+        "caption_styles": [s.value for s in CaptionStyle],
+        "color_grades": [c.value for c in ColorGrade],
+        "music_genres": [m.value for m in MusicGenre],
+        "voice_presets": [v.value for v in VoicePreset],
+        "max_clips": 10,
+        "max_upload_mb": 2048,
+        "supported_formats": [".mp4", ".mov", ".mkv", ".avi", ".webm"],
+    }
+
+
+# Serve frontend for all non-API routes (SPA)
+@app.get("/{full_path:path}")
+async def serve_frontend(full_path: str):
+    """Serve React frontend (SPA fallback)."""
+    if FRONTEND_DIR.exists():
+        # Try to serve the requested file
+        file_path = FRONTEND_DIR / full_path
+        if file_path.exists() and file_path.is_file():
+            return FileResponse(str(file_path))
+        # Fallback to index.html for SPA routing
+        index_path = FRONTEND_DIR / "index.html"
+        if index_path.exists():
+            return FileResponse(str(index_path))
+    
+    return {"message": "Frontend not built. Run 'npm run build' in frontend/"}