import pgMeta from '@supabase/pg-meta'
import type { SafeSqlFragment } from '@supabase/pg-meta'
import { useMutation, useQueryClient } from '@tanstack/react-query'
import { toast } from 'sonner'

import { databasePoliciesKeys } from './keys'
import { executeSql } from '@/data/sql/execute-sql-mutation'
import type { ResponseError, UseCustomMutationOptions } from '@/types'

export type DatabasePolicyUpdateVariables = {
  projectRef: string
  connectionString?: string | null
  originalPolicy: {
    id: number
    name: string
    schema: string
    table: string
  }
  payload: {
    name?: string
    definition?: SafeSqlFragment
    check?: SafeSqlFragment
    roles?: string[]
  }
}

export async function updateDatabasePolicy({
  projectRef,
  connectionString,
  originalPolicy,
  payload,
}: DatabasePolicyUpdateVariables) {
  let headers = new Headers()
  if (connectionString) headers.set('x-connection-encrypted', connectionString)

  const { sql } = pgMeta.policies.update(originalPolicy, payload)
  const { result } = await executeSql({
    projectRef,
    connectionString,
    sql,
    queryKey: ['policy', 'update', originalPolicy.id],
  })

  return result
}

type DatabasePolicyUpdateData = Awaited<ReturnType<typeof updateDatabasePolicy>>

export const useDatabasePolicyUpdateMutation = ({
  onSuccess,
  onError,
  ...options
}: Omit<
  UseCustomMutationOptions<DatabasePolicyUpdateData, ResponseError, DatabasePolicyUpdateVariables>,
  'mutationFn'
> = {}) => {
  const queryClient = useQueryClient()

  return useMutation<DatabasePolicyUpdateData, ResponseError, DatabasePolicyUpdateVariables>({
    mutationFn: (vars) => updateDatabasePolicy(vars),
    async onSuccess(data, variables, context) {
      const { projectRef } = variables
      await queryClient.invalidateQueries({ queryKey: databasePoliciesKeys.list(projectRef) })
      await onSuccess?.(data, variables, context)
    },
    async onError(data, variables, context) {
      if (onError === undefined) {
        toast.error(`Failed to update database policy: ${data.message}`)
      } else {
        onError(data, variables, context)
      }
    },
    ...options,
  })
}