import { defineEventHandler, createError } from 'h3'
import { getSubdomainFromRequest } from '~/server/utils/tenant'
import { getSessionToken, clearSessionCookie, clearTenantIdCookie } from '~/server/utils/session'

export default defineEventHandler(async (event) => {
  const config = useRuntimeConfig()
  const subdomain = getSubdomainFromRequest(event)
  const token = getSessionToken(event)

  const backendUrl = config.backendUrl || 'http://localhost:3000'

  try {
    // Call backend logout endpoint if we have a token
    if (token) {
      await fetch(`${backendUrl}/api/auth/logout`, {
        method: 'POST',
        headers: {
          'Content-Type': 'application/json',
          'Authorization': `Bearer ${token}`,
          ...(subdomain && { 'x-tenant-subdomain': subdomain }),
        },
      })
    }
  } catch (error) {
    // Log but don't fail - we still want to clear cookies
    console.error('Backend logout error:', error)
  }

  // Always clear cookies regardless of backend response
  clearSessionCookie(event)
  clearTenantIdCookie(event)

  return {
    success: true,
    message: 'Logged out successfully',
  }
})