Fix: package inits + waitress + dynamic

Dockerfile

@@ -1,4 +1,4 @@
-# Dockerfile — Hugging Face Space (Flask via gunicorn)
+# Dockerfile — Hugging Face Space (Flask via waitress)
 FROM python:3.11-slim
 
 ENV DEBIAN_FRONTEND=noninteractive \
@@ -12,23 +12,18 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
 
 WORKDIR /app
 
-# Requisitos
 COPY requirements.txt /app/requirements.txt
 RUN pip install --upgrade pip && pip install -r /app/requirements.txt
 
-# Código
 COPY src /app/src
 COPY README.md /app/README.md
 
-# Variáveis padrão
 ENV PYTHONPATH=/app
 ENV MPLBACKEND=Agg
-# CORS e secret (ajuste origens se necessário)
 ENV ALLOWED_ORIGINS="https://viniciuskanh.github.io,http://localhost:3000,http://localhost:5173"
 ENV SECRET_KEY="cleansight-secret"
 
-# Expor porta padrão local (no HF ela será sobrescrita por $PORT)
 EXPOSE 7860
 
-# Use $PORT dinâmico do HF; fallback local mantém usabilidade
-CMD ["bash","-lc","exec gunicorn -w ${WEB_CONCURRENCY:-2} -k gthread -b 0.0.0.0:${PORT:-7860} src.main:app --timeout ${TIMEOUT:-120}"]
+# Usa a porta dinâmica do Space ($PORT). Fallback para 7860 local.
+CMD ["bash","-lc","python -c 'import os;print(\"PORT=\",os.environ.get(\"PORT\"));from waitress import serve;from src.main import app;serve(app, host=\"0.0.0.0\", port=int(os.environ.get(\"PORT\",7860)))'"]

requirements.txt

@@ -1,10 +1,10 @@
 Flask==3.0.3
 flask-cors==4.0.1
+waitress==2.1.2
 chardet==5.2.0
 matplotlib==3.8.4
 numpy==1.26.4
 pandas==2.2.2
-ydata-profiling==4.8.3
 plotly==5.24.1
 scikit-learn==1.4.2
-gunicorn==21.2.0
+ydata-profiling==4.8.3

src/main.py

@@ -1,55 +1,40 @@
 # src/main.py
-import os
-import sys
-
-# Garante que "src" esteja no PYTHONPATH (não altere)
+import os, sys
 sys.path.insert(0, os.path.dirname(os.path.dirname(__file__)))
 
-from flask import Flask, send_from_directory, jsonify
+from flask import Flask, jsonify, send_from_directory
 from flask_cors import CORS
 from src.routes.preprocessing_enhanced import preprocessing_bp
 
 def create_app():
     app = Flask(__name__, static_folder=os.path.join(os.path.dirname(__file__), 'static'))
     app.config['SECRET_KEY'] = os.environ.get('SECRET_KEY', 'cleansight-secret')
-    app.config['MAX_CONTENT_LENGTH'] = 100 * 1024 * 1024  # 100MB
+    app.config['MAX_CONTENT_LENGTH'] = 100 * 1024 * 1024
 
-    # CORS: somente os domínios permitidos
-    allowed_origins = os.environ.get(
+    allowed = os.environ.get(
         "ALLOWED_ORIGINS",
-        "http://localhost:3000,http://localhost:5173,https://viniciuskanh.github.io"
+        "https://viniciuskanh.github.io,http://localhost:3000,http://localhost:5173"
     ).split(",")
+    CORS(app, resources={r"/api/*": {"origins": allowed}})
 
-    CORS(app, resources={r"/api/*": {"origins": allowed_origins}}, supports_credentials=False)
-
-    # Blueprints
-    app.register_blueprint(preprocessing_bp, url_prefix='/api')
+    app.register_blueprint(preprocessing_bp, url_prefix="/api")
 
-    # Healthcheck
     @app.get("/health")
     def health():
         return jsonify({"status": "ok"}), 200
 
-    # Raiz/estáticos (opcional para desenvolvimento local)
     @app.route('/', defaults={'path': ''})
     @app.route('/<path:path>')
     def serve(path):
-        static_folder_path = app.static_folder
-        if static_folder_path is None:
-            return "Static folder not configured", 404
+        sf = app.static_folder
+        if sf and path and os.path.exists(os.path.join(sf, path)):
+            return send_from_directory(sf, path)
+        if sf and os.path.exists(os.path.join(sf, 'index.html')):
+            return send_from_directory(sf, 'index.html')
+        return "index.html not found", 404
 
-        if path != "" and os.path.exists(os.path.join(static_folder_path, path)):
-            return send_from_directory(static_folder_path, path)
-        else:
-            index_path = os.path.join(static_folder_path, 'index.html')
-            if os.path.exists(index_path):
-                return send_from_directory(static_folder_path, 'index.html')
-            else:
-                return "index.html not found", 404
-
-    # Cabeçalhos de segurança básicos
     @app.after_request
-    def set_headers(resp):
+    def headers(resp):
         resp.headers["X-Content-Type-Options"] = "nosniff"
         resp.headers["X-Frame-Options"] = "DENY"
         resp.headers["X-XSS-Protection"] = "1; mode=block"
@@ -57,10 +42,7 @@ def create_app():
 
     return app
 
-
 app = create_app()
 
-if __name__ == '__main__':
-    # Para rodar localmente
-    port = int(os.environ.get('PORT', 5000))
-    app.run(host='0.0.0.0', port=port, debug=True)
+if __name__ == "__main__":
+    app.run(host="0.0.0.0", port=int(os.environ.get("PORT", 5000)), debug=True)