services:
  - type: web
    name: alu-chatbot-backend
    runtime: python
    plan: free
    buildCommand: |
      pip install -r requirements.txt
      python download_models.py
    startCommand: python server.py
    envVars:
      - key: TRANSFORMERS_CACHE
        value: ./model_cache
      - key: SENTENCE_TRANSFORMERS_HOME
        value: ./model_cache
      - key: HF_HOME
        value: ./model_cache
      - key: PYTHONUNBUFFERED
        value: "1"
      - key: CORS_ALLOWED_ORIGINS
        value: "https://alu-student-companion.onrender.com,http://localhost:3000,http://localhost:3001"