"""
DBIS IRU Python Client
"""

import requests
from typing import Optional, Dict, Any, List
from .types import IRUOffering, IRUInquiry, IRUSubscription


class IRUClient:
    """Client for DBIS IRU API"""

    def __init__(
        self,
        api_base_url: str,
        api_key: Optional[str] = None,
        timeout: int = 30
    ):
        """
        Initialize IRU Client

        Args:
            api_base_url: Base URL for DBIS API
            api_key: API key for authentication (optional)
            timeout: Request timeout in seconds
        """
        self.api_base_url = api_base_url.rstrip('/')
        self.api_key = api_key
        self.timeout = timeout
        self.session = requests.Session()
        
        if api_key:
            self.session.headers.update({
                'Authorization': f'Bearer {api_key}'
            })
        
        self.session.headers.update({
            'Content-Type': 'application/json'
        })

    def get_offerings(
        self,
        capacity_tier: Optional[int] = None,
        institutional_type: Optional[str] = None
    ) -> List[IRUOffering]:
        """
        Get all IRU offerings

        Args:
            capacity_tier: Filter by capacity tier (1-5)
            institutional_type: Filter by institutional type

        Returns:
            List of IRU offerings
        """
        params = {}
        if capacity_tier:
            params['capacityTier'] = capacity_tier
        if institutional_type:
            params['institutionalType'] = institutional_type

        response = self._request(
            'GET',
            '/api/v1/iru/marketplace/offerings',
            params=params
        )

        return response['data']

    def get_offering(self, offering_id: str) -> IRUOffering:
        """
        Get offering by ID

        Args:
            offering_id: Offering ID

        Returns:
            IRU offering details
        """
        response = self._request(
            'GET',
            f'/api/v1/iru/marketplace/offerings/{offering_id}'
        )

        return response['data']

    def submit_inquiry(self, inquiry: IRUInquiry) -> Dict[str, Any]:
        """
        Submit initial inquiry

        Args:
            inquiry: Inquiry details

        Returns:
            Inquiry result with inquiry ID and status
        """
        response = self._request(
            'POST',
            '/api/v1/iru/marketplace/inquiries',
            json=inquiry.dict()
        )

        return response['data']

    def get_inquiry_status(self, inquiry_id: str) -> Dict[str, Any]:
        """
        Get inquiry status

        Args:
            inquiry_id: Inquiry ID

        Returns:
            Inquiry status details
        """
        response = self._request(
            'GET',
            f'/api/v1/iru/marketplace/inquiries/{inquiry_id}'
        )

        return response['data']

    def calculate_pricing(
        self,
        offering_id: str,
        usage_profile: Optional[Dict[str, Any]] = None
    ) -> Dict[str, Any]:
        """
        Calculate pricing for an offering

        Args:
            offering_id: Offering ID
            usage_profile: Optional usage profile

        Returns:
            Pricing breakdown
        """
        params = {}
        if usage_profile:
            import json
            params['usageProfile'] = json.dumps(usage_profile)

        response = self._request(
            'GET',
            f'/api/v1/iru/marketplace/offerings/{offering_id}/pricing',
            params=params
        )

        return response['data']

    def get_dashboard(self) -> Dict[str, Any]:
        """
        Get participant dashboard

        Returns:
            Dashboard data
        """
        response = self._request(
            'GET',
            '/api/v1/iru/portal/dashboard'
        )

        return response['data']

    def get_service_health(self, subscription_id: str) -> Dict[str, Any]:
        """
        Get service health

        Args:
            subscription_id: Subscription ID

        Returns:
            Service health data
        """
        response = self._request(
            'GET',
            f'/api/v1/iru/portal/monitoring/{subscription_id}/health'
        )

        return response['data']

    def get_deployment_status(self, subscription_id: str) -> Dict[str, Any]:
        """
        Get deployment status

        Args:
            subscription_id: Subscription ID

        Returns:
            Deployment status
        """
        response = self._request(
            'GET',
            f'/api/v1/iru/portal/deployment/{subscription_id}'
        )

        return response['data']

    def _request(
        self,
        method: str,
        path: str,
        params: Optional[Dict[str, Any]] = None,
        json: Optional[Dict[str, Any]] = None
    ) -> Dict[str, Any]:
        """Make HTTP request"""
        url = f"{self.api_base_url}{path}"

        try:
            response = self.session.request(
                method=method,
                url=url,
                params=params,
                json=json,
                timeout=self.timeout
            )
            response.raise_for_status()
            return response.json()
        except requests.exceptions.RequestException as e:
            raise Exception(f"API request failed: {str(e)}")