"""
Webhook handlers for JIRA and Bitbucket events.
"""
from fastapi import APIRouter, Request, HTTPException, Header
from typing import Optional
import hmac
import hashlib
import logging

logger = logging.getLogger(__name__)
router = APIRouter()


def verify_jira_signature(payload: bytes, signature: str, secret: str) -> bool:
    """Verify JIRA webhook signature."""
    expected = hmac.new(secret.encode(), payload, hashlib.sha256).hexdigest()
    return hmac.compare_digest(expected, signature)


@router.post("/jira")
async def jira_webhook(
    request: Request,
    x_atlassian_webhook_identifier: Optional[str] = Header(None),
):
    """
    Handle JIRA webhook events.
    
    Events processed:
    - jira:issue_created
    - jira:issue_updated
    """
    body = await request.body()
    data = await request.json()
    
    event_type = data.get("webhookEvent", "unknown")
    issue = data.get("issue", {})
    issue_key = issue.get("key", "unknown")
    
    logger.info(f"📥 JIRA webhook: {event_type} - {issue_key}")
    
    # Filter: only process Support Cases
    issue_type = issue.get("fields", {}).get("issuetype", {}).get("name", "")
    if issue_type != "Support Case":
        logger.info(f"⏭️ Skipping non-Support Case issue: {issue_key} ({issue_type})")
        return {"status": "skipped", "reason": "not a Support Case"}
    
    # Queue for analysis
    # TODO: Implement queue system
    logger.info(f"📋 Queuing Support Case for analysis: {issue_key}")
    
    return {
        "status": "accepted",
        "issue": issue_key,
        "event": event_type,
    }


@router.post("/bitbucket")
async def bitbucket_webhook(request: Request):
    """
    Handle Bitbucket webhook events.
    
    Events processed:
    - repo:refs_changed (push)
    - pr:merged
    """
    data = await request.json()
    event_type = data.get("eventKey", "unknown")
    
    logger.info(f"📥 Bitbucket webhook: {event_type}")
    
    if event_type == "repo:refs_changed":
        # Re-index affected files
        changes = data.get("changes", [])
        for change in changes:
            ref = change.get("ref", {}).get("displayId", "")
            logger.info(f"🔄 Branch updated: {ref}")
    
    return {"status": "accepted", "event": event_type}