import { DEFAULT_PLATFORM_APPLICATION_NAME } from '@supabase/pg-meta/src/constants'
import { useQuery } from '@tanstack/react-query'

import { databaseTriggerKeys } from './keys'
import type { PostgresTrigger } from '@/components/interfaces/Database/Triggers/TriggersList/TriggerList.utils'
import { get, handleError } from '@/data/fetchers'
import type { ResponseError, UseCustomQueryOptions } from '@/types'

function markSavedTriggerSafe(trigger: DatabaseTriggersData[number]): PostgresTrigger {
  return trigger as PostgresTrigger
}

export type DatabaseTriggersVariables = {
  projectRef?: string
  connectionString?: string | null
}

export async function getDatabaseTriggers(
  { projectRef, connectionString }: DatabaseTriggersVariables,
  signal?: AbortSignal
) {
  if (!projectRef) throw new Error('projectRef is required')

  let headers = new Headers()
  if (connectionString) headers.set('x-connection-encrypted', connectionString)

  const { data, error } = await get('/platform/pg-meta/{ref}/triggers', {
    params: {
      header: {
        'x-connection-encrypted': connectionString!,
        'x-pg-application-name': DEFAULT_PLATFORM_APPLICATION_NAME,
      },
      path: { ref: projectRef },
      query: undefined as any,
    },
    headers,
    signal,
  })

  if (error) handleError(error)
  return data
}

export type DatabaseTriggersData = Awaited<ReturnType<typeof getDatabaseTriggers>>
export type DatabaseTriggersError = ResponseError

export const useDatabaseHooksQuery = <TData = DatabaseTriggersData>(
  { projectRef, connectionString }: DatabaseTriggersVariables,
  {
    enabled = true,
    ...options
  }: UseCustomQueryOptions<DatabaseTriggersData, DatabaseTriggersError, TData> = {}
) =>
  useQuery<DatabaseTriggersData, DatabaseTriggersError, TData>({
    queryKey: databaseTriggerKeys.list(projectRef),
    queryFn: ({ signal }) => getDatabaseTriggers({ projectRef, connectionString }, signal),
    select: (data) => {
      return data.filter((trigger) => {
        return (
          trigger.function_schema === 'supabase_functions' &&
          (trigger.schema !== 'net' || trigger.function_args.length === 0)
        )
      }) as any
    },
    enabled: enabled && typeof projectRef !== 'undefined',
    ...options,
  })

export const useDatabaseTriggersQuery = <TData = PostgresTrigger[]>(
  { projectRef, connectionString }: DatabaseTriggersVariables,
  {
    enabled = true,
    ...options
  }: UseCustomQueryOptions<PostgresTrigger[], DatabaseTriggersError, TData> = {}
) =>
  useQuery<PostgresTrigger[], DatabaseTriggersError, TData>({
    queryKey: databaseTriggerKeys.list(projectRef),
    queryFn: ({ signal }) =>
      getDatabaseTriggers({ projectRef, connectionString }, signal).then((data) =>
        data.map(markSavedTriggerSafe)
      ),
    enabled: enabled && typeof projectRef !== 'undefined',
    ...options,
  })