"""
A2H2A Client - Bibliotek for å poste A2H2A tickets fra agenter
Med støtte for alle MCP tools
"""
import httpx
import os
from datetime import datetime
from typing import Dict, List, Optional

OPAX_BASE_URL = os.getenv('OPAX_BASE_URL', 'https://opax.vauco.no')
MCP_SECRET = os.getenv('MCP_SECRET')

# MCP Tool Registry - alle tools som krever A2H2A
A2H2A_TOOLS = {
    "opax.secrets.rotate": {
        "severity": "CRITICAL",
        "timeout_minutes": 15,
        "description": "Roter hemmelighet i Secret Manager"
    },
    "opax.traffic.shift": {
        "severity": "CRITICAL",
        "timeout_minutes": 15,
        "description": "Skift trafikk mellom Cloud Run revisjoner"
    },
    "tyr.kms.attest": {
        "severity": "HIGH",
        "timeout_minutes": 60,
        "description": "Signer container digest med KMS for Binary Authorization"
    },
    "tyr.perimeter.update": {
        "severity": "CRITICAL",
        "timeout_minutes": 30,
        "description": "Juster VPC-SC perimeter policyer"
    },
    "osvauco.git.filter": {
        "severity": "CRITICAL",
        "timeout_minutes": 30,
        "description": "Fjern sensitiv historikk fra Git"
    },
    "osvauco.firewall.block": {
        "severity": "HIGH",
        "timeout_minutes": 15,
        "description": "Blokker IP via Cloud Armor / VPC brannmur"
    }
}

class A2H2AClient:
    def __init__(self):
        self.base_url = OPAX_BASE_URL
        self.headers = {
            'X-MCP-Secret': MCP_SECRET,
            'Content-Type': 'application/json'
        }
    
    def get_tool_config(self, tool_name: str) -> Optional[Dict]:
        """Hent konfigurasjon for et tool"""
        return A2H2A_TOOLS.get(tool_name)
    
    async def create_ticket_for_tool(
        self,
        tool_name: str,
        tool_parameters: Dict,
        reporter: str,
        trigger: str,
        affected_service: str,
        summary: str,
        evidence_logs: List[str],
        rollback_plan: str,
        project_id: str = "propane-will-491900-m5",
        region: str = "us-central1",
        category: str = "AUTOMATED_REMEDIATION",
        authorized_approver: str = "chris.christiansen@vauco.no"
    ) -> Dict:
        """
        Opprett A2H2A ticket basert på tool-konfigurasjon.
        
        Automatisk henter severity og timeout fra A2H2A_TOOLS registry.
        """
        tool_config = self.get_tool_config(tool_name)
        
        if not tool_config:
            raise ValueError(f"Tool '{tool_name}' er ikke registrert i A2H2A_TOOLS")
        
        ticket = {
            "ticket_id": f"A2H2A-{datetime.utcnow().strftime('%Y%m%d-%H%M%S')}",
            "timestamp": datetime.utcnow(),
            "severity": tool_config["severity"],
            "category": category,
            "source": {
                "reporter": reporter,
                "trigger": trigger,
                "affected_service": affected_service,
                "project_id": project_id,
                "region": region
            },
            "context": {
                "summary": summary,
                "evidence_logs": evidence_logs
            },
            "proposed_action": {
                "action_type": "AUTOMATED_REMEDIATION",
                "runbook_reference": f"docs/RUNBOOK.md#scenario-{category.lower()}",
                "execution_tool": tool_name,
                "parameters": tool_parameters,
                "rollback_plan": rollback_plan
            },
            "governance": {
                "approval_status": "PENDING",
                "authorized_approver": authorized_approver,
                "requires_mfa": True,
                "timeout_minutes": tool_config["timeout_minutes"]
            }
        }
        
        async with httpx.AsyncClient() as client:
            response = await client.post(
                f"{self.base_url}/api/v1/a2h2a/tickets",
                json=ticket,
                headers=self.headers
            )
            return response.json()
    
    async def register_new_tool(
        self,
        tool_name: str,
        severity: str,
        timeout_minutes: int,
        description: str
    ):
        """
        Registrer et nytt tool i A2H2A_TOOLS (for fremtidige tools).
        
        Dette kan kalles dynamisk når nye tools legges til i server.py
        """
        A2H2A_TOOLS[tool_name] = {
            "severity": severity,
            "timeout_minutes": timeout_minutes,
            "description": description
        }

# Convenience function
async def post_a2h2a_ticket_for_tool(tool_name: str, **kwargs):
    client = A2H2AClient()
    return await client.create_ticket_for_tool(tool_name, **kwargs)