"""
Application settings and configuration
"""
from pydantic_settings import BaseSettings
from typing import Optional, List
import json


class Settings(BaseSettings):
    """Application settings"""

    # App
    app_name: str = "Autonomous Incident Management System"
    app_version: str = "0.1.0"
    debug: bool = False
    log_level: str = "INFO"

    # Database
    database_url: str = "postgresql://user:password@localhost/aims"
    database_pool_size: int = 20
    database_max_overflow: int = 40

    # Redis
    redis_url: str = "redis://localhost:6379"
    redis_cache_ttl: int = 3600

    # LLM Configuration
    ollama_base_url: str = "http://localhost:11434"
    ollama_model: str = "mistral"  # mistral, neural-chat, dolphin-mixtral, etc.
    ollama_temperature: float = 0.7
    ollama_num_predict: int = 2048  # max tokens
    
    openai_api_key: Optional[str] = None
    openai_model: str = "gpt-4"
    openai_temperature: float = 0.7
    openai_max_tokens: int = 2000

    anthropic_api_key: Optional[str] = None
    anthropic_model: str = "claude-3-sonnet-20240229"

    llm_provider: str = "ollama"  # ollama, openai, or anthropic
    llm_timeout: int = 60

    # Alert Configuration
    alert_correlation_window_minutes: int = 5
    max_alerts_per_incident: int = 1000
    alert_deduplication_ttl_hours: int = 24

    # Incident Configuration
    auto_remediation_enabled: bool = False
    incident_retention_days: int = 365
    critical_incident_escalation_minutes: int = 15

    # Notification Configuration
    slack_bot_token: Optional[str] = None
    slack_channel_incidents: str = "#incidents"
    email_from: str = "noreply@company.com"
    email_smtp_server: str = "smtp.gmail.com"
    email_smtp_port: int = 587
    email_smtp_user: Optional[str] = None
    email_smtp_password: Optional[str] = None

    # API Configuration
    api_prefix: str = "/api/v1"
    api_title: str = "Autonomous Incident Management System API"
    api_description: str = "API for autonomous incident detection and management"
    cors_origins: str = '["http://localhost:3000","http://localhost:5173","http://localhost:8001"]'

    # Security
    secret_key: str = "change-me-in-production"
    algorithm: str = "HS256"
    access_token_expire_minutes: int = 30
    jwt_enabled: bool = True

    # Monitoring
    enable_metrics: bool = True
    metrics_port: int = 8001

    # Scheduler
    scheduler_enabled: bool = True
    scheduler_timezone: str = "UTC"

    class Config:
        env_file = ".env"
        case_sensitive = False

    @property
    def get_cors_origins(self) -> List[str]:
        """Parse CORS origins from string to list"""
        try:
            if isinstance(self.cors_origins, str):
                return json.loads(self.cors_origins)
            return self.cors_origins
        except Exception:
            return ["http://localhost:3000", "http://localhost:5173", "http://localhost:8001"]


settings = Settings()