app/config/settings.py

# ============================================================================
#  CONFIGURATION
# ============================================================================

import os
from dotenv import load_dotenv

# Load .env file
load_dotenv()


class Config:
    """Centralized configuration"""
    # PM Tool API
    PM_TOOL_BASE_URL = "https://pmtoolapi.synthesys.in/api"
    PM_TOOL_LOGIN_ENDPOINT = f"{PM_TOOL_BASE_URL}/Auth/Login"
    PM_TOOL_TASKS_ENDPOINT = f"{PM_TOOL_BASE_URL}/Tasks/GetTaskByType"
    PM_TOOL_ATTACHMENTS_ENDPOINT = f"{PM_TOOL_BASE_URL}/Attachments"
    
    # Groq AI - Multi-key support
    # Single key (backward compatible): GROQ_API_KEY=key1
    # Multiple keys: GROQ_API_KEYS=key1,key2,key3,...,key10
    GROQ_API_KEY = os.getenv("GROQ_API_KEY", "")
    GROQ_API_KEYS = [
        key.strip() 
        for key in os.getenv("GROQ_API_KEYS", os.getenv("GROQ_API_KEY", "")).split(",")
        if key.strip()
    ]
    GROQ_MODEL = "openai/gpt-oss-120b"
    GROQ_MAX_TOKENS = 8192
    GROQ_TEMPERATURE = 0.4
    
    # Groq Rate Limits (per key)
    GROQ_RPM_LIMIT = 30          # Requests per minute
    GROQ_RPH_LIMIT = 1000        # Requests per hour
    GROQ_RPD_LIMIT = 10000       # Requests per day
    GROQ_TPM_LIMIT = 30000       # Tokens per minute
    GROQ_TPD_LIMIT = 500000      # Tokens per day
    
    # API Settings
    API_TITLE = "AI Test Case Generator API"
    API_VERSION = "1.0.0"
    API_DESCRIPTION = """
    🧪 **Automated Test Case Generation Engine**
    
    Features:
    - Generate test cases from PM Tool tasks
    - Support for bulk and single task processing
    - Attachment context integration
    - Multiple output formats (JSON, Excel, PDF)
    - Concurrent processing with retry logic
    - Comprehensive error handling
    """
    
    # Rate Limiting & Concurrency
    MAX_CONCURRENT_TASKS = 5
    MAX_REQUESTS_PER_MINUTE = 30
    REQUEST_TIMEOUT = 120  # seconds
    MAX_RETRY_ATTEMPTS = 3
    RETRY_DELAY = 2  # seconds
    
    # Token Cache
    TOKEN_CACHE_TTL = 3600  # 1 hour
    
    # Output - use /tmp for HF Spaces (writable directory)
    OUTPUT_DIR = os.getenv("OUTPUT_DIR", "generated_testcases")
    LOG_LEVEL = "INFO"


# Ensure output directory exists
os.makedirs(Config.OUTPUT_DIR, exist_ok=True)