"""Webhook management endpoints."""

import json
from typing import Any, List
from fastapi import APIRouter, Depends, HTTPException, status, BackgroundTasks
from sqlalchemy.orm import Session

from app.dependencies import get_db, get_current_superuser
from app.models.user import User
from app import crud
from app.schemas.webhook import (
    WebhookCreate,
    WebhookUpdate,
    Webhook as WebhookSchema,
    WebhookWithSecret,
    WebhookDelivery as WebhookDeliverySchema,
    WebhookTest,
    WEBHOOK_EVENTS,
)


router = APIRouter()


@router.get("/", response_model=List[WebhookSchema])
def list_webhooks(
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_superuser),
    skip: int = 0,
    limit: int = 100,
    is_active: bool = None
):
    """
    List all webhooks.
    Requires superuser permissions.
    """
    webhooks = crud.webhook.get_multi(db, skip=skip, limit=limit, is_active=is_active)
    # Convert events from JSON string to list
    result = []
    for webhook in webhooks:
        webhook_dict = {
            "id": webhook.id,
            "name": webhook.name,
            "url": webhook.url,
            "secret": webhook.secret,
            "events": json.loads(webhook.events) if webhook.events else [],
            "is_active": webhook.is_active,
            "retry_count": webhook.retry_count,
            "timeout_seconds": webhook.timeout_seconds,
            "created_by": webhook.created_by,
            "created_at": webhook.created_at,
            "updated_at": webhook.updated_at,
            "last_triggered_at": webhook.last_triggered_at,
            "success_count": webhook.success_count,
            "failure_count": webhook.failure_count,
        }
        result.append(webhook_dict)
    return result


@router.post("/", response_model=WebhookWithSecret, status_code=status.HTTP_201_CREATED)
def create_webhook(
    webhook_in: WebhookCreate,
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_superuser),
):
    """
    Create a new webhook.
    Returns the webhook with its secret (only shown once at creation).
    Requires superuser permissions.
    """
    webhook = crud.webhook.create(db, obj_in=webhook_in, created_by=current_user.id)

    # Log the action
    crud.audit_log.log_action(
        db,
        user_id=current_user.id,
        username=current_user.username,
        action="create",
        resource_type="webhook",
        resource_id=webhook.id,
        details={"name": webhook.name, "url": webhook.url},
        status="success"
    )

    return {
        "id": webhook.id,
        "name": webhook.name,
        "url": webhook.url,
        "secret": webhook.secret,
        "events": json.loads(webhook.events) if webhook.events else [],
        "is_active": webhook.is_active,
        "retry_count": webhook.retry_count,
        "timeout_seconds": webhook.timeout_seconds,
        "created_by": webhook.created_by,
        "created_at": webhook.created_at,
        "updated_at": webhook.updated_at,
        "last_triggered_at": webhook.last_triggered_at,
        "success_count": webhook.success_count,
        "failure_count": webhook.failure_count,
    }


@router.get("/events", response_model=List[str])
def list_webhook_events(
    current_user: User = Depends(get_current_superuser),
):
    """
    List all available webhook event types.
    """
    return WEBHOOK_EVENTS


@router.get("/{webhook_id}", response_model=WebhookSchema)
def get_webhook(
    webhook_id: str,
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_superuser),
):
    """
    Get a specific webhook.
    Requires superuser permissions.
    """
    webhook = crud.webhook.get(db, id=webhook_id)
    if not webhook:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail="Webhook not found"
        )

    return {
        "id": webhook.id,
        "name": webhook.name,
        "url": webhook.url,
        "secret": webhook.secret,
        "events": json.loads(webhook.events) if webhook.events else [],
        "is_active": webhook.is_active,
        "retry_count": webhook.retry_count,
        "timeout_seconds": webhook.timeout_seconds,
        "created_by": webhook.created_by,
        "created_at": webhook.created_at,
        "updated_at": webhook.updated_at,
        "last_triggered_at": webhook.last_triggered_at,
        "success_count": webhook.success_count,
        "failure_count": webhook.failure_count,
    }


@router.put("/{webhook_id}", response_model=WebhookSchema)
def update_webhook(
    webhook_id: str,
    webhook_in: WebhookUpdate,
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_superuser),
):
    """
    Update a webhook.
    Requires superuser permissions.
    """
    webhook = crud.webhook.get(db, id=webhook_id)
    if not webhook:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail="Webhook not found"
        )

    webhook = crud.webhook.update(db, db_obj=webhook, obj_in=webhook_in)

    # Log the action
    crud.audit_log.log_action(
        db,
        user_id=current_user.id,
        username=current_user.username,
        action="update",
        resource_type="webhook",
        resource_id=webhook.id,
        details={"name": webhook.name},
        status="success"
    )

    return {
        "id": webhook.id,
        "name": webhook.name,
        "url": webhook.url,
        "secret": webhook.secret,
        "events": json.loads(webhook.events) if webhook.events else [],
        "is_active": webhook.is_active,
        "retry_count": webhook.retry_count,
        "timeout_seconds": webhook.timeout_seconds,
        "created_by": webhook.created_by,
        "created_at": webhook.created_at,
        "updated_at": webhook.updated_at,
        "last_triggered_at": webhook.last_triggered_at,
        "success_count": webhook.success_count,
        "failure_count": webhook.failure_count,
    }


@router.delete("/{webhook_id}", status_code=status.HTTP_204_NO_CONTENT)
def delete_webhook(
    webhook_id: str,
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_superuser),
):
    """
    Delete a webhook.
    Requires superuser permissions.
    """
    webhook = crud.webhook.get(db, id=webhook_id)
    if not webhook:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail="Webhook not found"
        )

    # Log the action
    crud.audit_log.log_action(
        db,
        user_id=current_user.id,
        username=current_user.username,
        action="delete",
        resource_type="webhook",
        resource_id=webhook_id,
        details={"name": webhook.name},
        status="success"
    )

    crud.webhook.delete(db, id=webhook_id)
    return None


@router.post("/{webhook_id}/regenerate-secret", response_model=WebhookWithSecret)
def regenerate_webhook_secret(
    webhook_id: str,
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_superuser),
):
    """
    Regenerate the secret for a webhook.
    Returns the new secret (only shown once).
    Requires superuser permissions.
    """
    webhook = crud.webhook.get(db, id=webhook_id)
    if not webhook:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail="Webhook not found"
        )

    webhook = crud.webhook.regenerate_secret(db, db_obj=webhook)

    # Log the action
    crud.audit_log.log_action(
        db,
        user_id=current_user.id,
        username=current_user.username,
        action="regenerate_secret",
        resource_type="webhook",
        resource_id=webhook.id,
        details={"name": webhook.name},
        status="success"
    )

    return {
        "id": webhook.id,
        "name": webhook.name,
        "url": webhook.url,
        "secret": webhook.secret,
        "events": json.loads(webhook.events) if webhook.events else [],
        "is_active": webhook.is_active,
        "retry_count": webhook.retry_count,
        "timeout_seconds": webhook.timeout_seconds,
        "created_by": webhook.created_by,
        "created_at": webhook.created_at,
        "updated_at": webhook.updated_at,
        "last_triggered_at": webhook.last_triggered_at,
        "success_count": webhook.success_count,
        "failure_count": webhook.failure_count,
    }


@router.post("/{webhook_id}/test", response_model=WebhookDeliverySchema)
async def test_webhook(
    webhook_id: str,
    test_data: WebhookTest = None,
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_superuser),
):
    """
    Send a test delivery to a webhook.
    Requires superuser permissions.
    """
    webhook = crud.webhook.get(db, id=webhook_id)
    if not webhook:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail="Webhook not found"
        )

    event_type = test_data.event_type if test_data else "test.ping"
    payload = test_data.payload if test_data and test_data.payload else None

    delivery = await crud.webhook_service.test_webhook(
        db,
        webhook=webhook,
        event_type=event_type,
        payload=payload
    )

    # Log the action
    crud.audit_log.log_action(
        db,
        user_id=current_user.id,
        username=current_user.username,
        action="test",
        resource_type="webhook",
        resource_id=webhook.id,
        details={"status": delivery.status},
        status="success"
    )

    return delivery


@router.get("/{webhook_id}/deliveries", response_model=List[WebhookDeliverySchema])
def list_webhook_deliveries(
    webhook_id: str,
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_superuser),
    skip: int = 0,
    limit: int = 50
):
    """
    List deliveries for a specific webhook.
    Requires superuser permissions.
    """
    webhook = crud.webhook.get(db, id=webhook_id)
    if not webhook:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail="Webhook not found"
        )

    return crud.webhook_delivery.get_by_webhook(
        db,
        webhook_id=webhook_id,
        skip=skip,
        limit=limit
    )


@router.post("/{webhook_id}/deliveries/{delivery_id}/retry", response_model=WebhookDeliverySchema)
async def retry_webhook_delivery(
    webhook_id: str,
    delivery_id: str,
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_superuser),
):
    """
    Retry a failed webhook delivery.
    Requires superuser permissions.
    """
    webhook = crud.webhook.get(db, id=webhook_id)
    if not webhook:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail="Webhook not found"
        )

    delivery = crud.webhook_delivery.get(db, id=delivery_id)
    if not delivery or delivery.webhook_id != webhook_id:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail="Delivery not found"
        )

    await crud.webhook_service.deliver(db, webhook, delivery)

    db.refresh(delivery)
    return delivery