"""PeeringDB IXP Nodes Collector

Collects data from PeeringDB IXP directory.
https://www.peeringdb.com

Note: PeeringDB API has rate limits:
- Anonymous: 20 requests/minute
- Authenticated: 40 requests/minute (with API key)

To get higher limits, set PEERINGDB_API_KEY environment variable.
"""

import asyncio
import os
from typing import Dict, Any, List
from datetime import datetime

import httpx
from app.services.collectors.base import HTTPCollector

# PeeringDB API key - read from environment variable
PEERINGDB_API_KEY = os.environ.get("PEERINGDB_API_KEY", "")


class PeeringDBIXPCollector(HTTPCollector):
    name = "peeringdb_ixp"
    priority = "P1"
    module = "L2"
    frequency_hours = 24
    data_type = "ixp"
    base_url = "https://www.peeringdb.com/api/ix"

    def __init__(self):
        super().__init__()
        # Set headers with User-Agent
        self.headers = {
            "User-Agent": "Planet-Intelligence-System/1.0 (Python/collector)",
            "Accept": "application/json",
        }
        # API key is added to URL as query parameter
        if PEERINGDB_API_KEY:
            self.base_url = f"{self.base_url}?key={PEERINGDB_API_KEY}"

    async def fetch_with_retry(
        self, max_retries: int = 3, base_delay: float = 2.0
    ) -> Dict[str, Any]:
        """Fetch data with exponential backoff for rate limiting"""
        last_error = None

        for attempt in range(max_retries):
            try:
                async with httpx.AsyncClient(timeout=60.0) as client:
                    response = await client.get(self.base_url, headers=self.headers)

                    if response.status_code == 429:
                        # Rate limited - wait and retry with exponential backoff
                        delay = base_delay * (2**attempt)
                        print(f"PeeringDB rate limited, waiting {delay}s before retry...")
                        await asyncio.sleep(delay)
                        last_error = "Rate limited"
                        continue

                    response.raise_for_status()
                    return response.json()

            except httpx.HTTPStatusError as e:
                if e.response.status_code == 429:
                    delay = base_delay * (2**attempt)
                    print(f"PeeringDB rate limited, waiting {delay}s before retry...")
                    await asyncio.sleep(delay)
                    last_error = "Rate limited"
                    continue
                raise

        print(f"Warning: PeeringDB collection failed after {max_retries} retries: {last_error}")
        return {}

    async def collect(self) -> List[Dict[str, Any]]:
        """Collect IXP data from PeeringDB with rate limit handling"""
        response_data = await self.fetch_with_retry()
        if not response_data:
            return []
        return self.parse_response(response_data)

    def parse_response(self, response: Dict[str, Any]) -> List[Dict[str, Any]]:
        """Parse PeeringDB IXP API response"""
        data = []
        ixps = response.get("data", response.get("ixps", []))

        for item in ixps:
            try:
                entry = {
                    "source_id": f"peeringdb_ixp_{item.get('id', '')}",
                    "name": item.get("name", "Unknown"),
                    "country": item.get("country", "Unknown"),
                    "city": item.get("city", ""),
                    "latitude": self._parse_coordinate(item.get("latitude")),
                    "longitude": self._parse_coordinate(item.get("longitude")),
                    "metadata": {
                        "org_name": item.get("org_name"),
                        "url": item.get("url"),
                        "tech_email": item.get("tech_email"),
                        "tech_phone": item.get("tech_phone"),
                        "network_count": len(item.get("net_set", [])),
                        "created": item.get("created"),
                        "updated": item.get("updated"),
                    },
                    "reference_date": datetime.utcnow().isoformat(),
                }
                data.append(entry)
            except (ValueError, TypeError, KeyError):
                continue

        return data

    def _parse_coordinate(self, value: Any) -> float:
        if value is None:
            return 0.0
        if isinstance(value, (int, float)):
            return float(value)
        if isinstance(value, str):
            try:
                return float(value)
            except ValueError:
                return 0.0
        return 0.0


class PeeringDBNetworkCollector(HTTPCollector):
    name = "peeringdb_network"
    priority = "P2"
    module = "L2"
    frequency_hours = 48
    data_type = "network"
    base_url = "https://www.peeringdb.com/api/net"

    def __init__(self):
        super().__init__()
        self.headers = {
            "User-Agent": "Planet-Intelligence-System/1.0 (Python/collector)",
            "Accept": "application/json",
        }
        if PEERINGDB_API_KEY:
            self.base_url = f"{self.base_url}?key={PEERINGDB_API_KEY}"

    async def fetch_with_retry(
        self, max_retries: int = 3, base_delay: float = 2.0
    ) -> Dict[str, Any]:
        """Fetch data with exponential backoff for rate limiting"""
        last_error = None

        for attempt in range(max_retries):
            try:
                async with httpx.AsyncClient(timeout=60.0) as client:
                    response = await client.get(self.base_url, headers=self.headers)

                    if response.status_code == 429:
                        delay = base_delay * (2**attempt)
                        print(f"PeeringDB rate limited, waiting {delay}s before retry...")
                        await asyncio.sleep(delay)
                        last_error = "Rate limited"
                        continue

                    response.raise_for_status()
                    return response.json()

            except httpx.HTTPStatusError as e:
                if e.response.status_code == 429:
                    delay = base_delay * (2**attempt)
                    print(f"PeeringDB rate limited, waiting {delay}s before retry...")
                    await asyncio.sleep(delay)
                    last_error = "Rate limited"
                    continue
                raise

        print(f"Warning: PeeringDB collection failed after {max_retries} retries: {last_error}")
        return {}

    async def collect(self) -> List[Dict[str, Any]]:
        """Collect Network data from PeeringDB with rate limit handling"""
        response_data = await self.fetch_with_retry()
        if not response_data:
            return []
        return self.parse_response(response_data)

    def parse_response(self, response: Dict[str, Any]) -> List[Dict[str, Any]]:
        """Parse PeeringDB Network API response"""
        data = []
        networks = response.get("data", response.get("networks", []))

        for item in networks:
            try:
                entry = {
                    "source_id": f"peeringdb_net_{item.get('id', '')}",
                    "name": item.get("name", "Unknown"),
                    "country": item.get("country", "Unknown"),
                    "city": item.get("city", ""),
                    "latitude": self._parse_coordinate(item.get("latitude")),
                    "longitude": self._parse_coordinate(item.get("longitude")),
                    "metadata": {
                        "asn": item.get("asn"),
                        "irr_as_set": item.get("irr_as_set"),
                        "url": item.get("url"),
                        "info_type": item.get("info_type"),
                        "info_traffic": item.get("info_traffic"),
                        "info_ratio": item.get("info_ratio"),
                        "ix_count": len(item.get("ix_set", [])),
                        "created": item.get("created"),
                        "updated": item.get("updated"),
                    },
                    "reference_date": datetime.utcnow().isoformat(),
                }
                data.append(entry)
            except (ValueError, TypeError, KeyError):
                continue

        return data

    def _parse_coordinate(self, value: Any) -> float:
        if value is None:
            return 0.0
        if isinstance(value, (int, float)):
            return float(value)
        if isinstance(value, str):
            try:
                return float(value)
            except ValueError:
                return 0.0
        return 0.0


class PeeringDBFacilityCollector(HTTPCollector):
    name = "peeringdb_facility"
    priority = "P2"
    module = "L2"
    frequency_hours = 48
    data_type = "facility"
    base_url = "https://www.peeringdb.com/api/fac"

    def __init__(self):
        super().__init__()
        self.headers = {
            "User-Agent": "Planet-Intelligence-System/1.0 (Python/collector)",
            "Accept": "application/json",
        }
        if PEERINGDB_API_KEY:
            self.base_url = f"{self.base_url}?key={PEERINGDB_API_KEY}"

    async def fetch_with_retry(
        self, max_retries: int = 3, base_delay: float = 2.0
    ) -> Dict[str, Any]:
        """Fetch data with exponential backoff for rate limiting"""
        last_error = None

        for attempt in range(max_retries):
            try:
                async with httpx.AsyncClient(timeout=60.0) as client:
                    response = await client.get(self.base_url, headers=self.headers)

                    if response.status_code == 429:
                        delay = base_delay * (2**attempt)
                        print(f"PeeringDB rate limited, waiting {delay}s before retry...")
                        await asyncio.sleep(delay)
                        last_error = "Rate limited"
                        continue

                    response.raise_for_status()
                    return response.json()

            except httpx.HTTPStatusError as e:
                if e.response.status_code == 429:
                    delay = base_delay * (2**attempt)
                    print(f"PeeringDB rate limited, waiting {delay}s before retry...")
                    await asyncio.sleep(delay)
                    last_error = "Rate limited"
                    continue
                raise

        print(f"Warning: PeeringDB collection failed after {max_retries} retries: {last_error}")
        return {}

    async def collect(self) -> List[Dict[str, Any]]:
        """Collect Facility data from PeeringDB with rate limit handling"""
        response_data = await self.fetch_with_retry()
        if not response_data:
            return []
        return self.parse_response(response_data)

    def parse_response(self, response: Dict[str, Any]) -> List[Dict[str, Any]]:
        """Parse PeeringDB Facility API response"""
        data = []
        facilities = response.get("data", response.get("facilities", []))

        for item in facilities:
            try:
                entry = {
                    "source_id": f"peeringdb_fac_{item.get('id', '')}",
                    "name": item.get("name", "Unknown"),
                    "country": item.get("country", "Unknown"),
                    "city": item.get("city", ""),
                    "latitude": self._parse_coordinate(item.get("latitude")),
                    "longitude": self._parse_coordinate(item.get("longitude")),
                    "metadata": {
                        "org_name": item.get("org_name"),
                        "address": item.get("address"),
                        "url": item.get("url"),
                        "rack_count": item.get("rack_count"),
                        "power": item.get("power"),
                        "network_count": len(item.get("net_set", [])),
                        "created": item.get("created"),
                        "updated": item.get("updated"),
                    },
                    "reference_date": datetime.utcnow().isoformat(),
                }
                data.append(entry)
            except (ValueError, TypeError, KeyError):
                continue

        return data

    def _parse_coordinate(self, value: Any) -> float:
        if value is None:
            return 0.0
        if isinstance(value, (int, float)):
            return float(value)
        if isinstance(value, str):
            try:
                return float(value)
            except ValueError:
                return 0.0
        return 0.0