"""Blockchain RPC client for Edge API Service"""

import httpx
from typing import Dict, Optional, Any

from ..config import settings


class BlockchainRPCClient:
    """Client for blockchain node RPC communication"""
    
    def __init__(self):
        self.base_url = f"http://{settings.blockchain_rpc_host}:{settings.blockchain_rpc_port}"
        self.client = httpx.AsyncClient(timeout=30.0)
    
    async def close(self):
        """Close the HTTP client"""
        await self.client.aclose()
    
    async def join_island(self, island_id: str, island_name: str, chain_id: str, role: str = "compute-provider", is_hub: bool = False) -> Dict[str, Any]:
        """Join island via blockchain RPC"""
        response = await self.client.post(
            f"{self.base_url}/rpc/islands/join",
            json={
                "island_id": island_id,
                "island_name": island_name,
                "chain_id": chain_id,
                "role": role,
                "is_hub": is_hub
            }
        )
        response.raise_for_status()
        return response.json()
    
    async def leave_island(self, island_id: str) -> Dict[str, Any]:
        """Leave island via blockchain RPC"""
        response = await self.client.post(
            f"{self.base_url}/rpc/islands/leave",
            json={"island_id": island_id}
        )
        response.raise_for_status()
        return response.json()
    
    async def get_island_info(self, island_id: str) -> Optional[Dict[str, Any]]:
        """Get island info via blockchain RPC"""
        response = await self.client.get(f"{self.base_url}/rpc/islands/{island_id}")
        if response.status_code == 404:
            return None
        response.raise_for_status()
        return response.json()
    
    async def list_islands(self) -> Dict[str, Any]:
        """List all islands via blockchain RPC"""
        response = await self.client.get(f"{self.base_url}/rpc/islands")
        response.raise_for_status()
        return response.json()
    
    async def request_bridge(self, target_island_id: str) -> Dict[str, Any]:
        """Request bridge via blockchain RPC"""
        response = await self.client.post(
            f"{self.base_url}/rpc/islands/bridge",
            json={"target_island_id": target_island_id}
        )
        response.raise_for_status()
        return response.json()