import { useMutation, useQueryClient } from '@tanstack/react-query'
import { toast } from 'sonner'

import { replicaKeys } from './keys'
import { handleError, post } from '@/data/fetchers'
import type { ResponseError, UseCustomMutationOptions } from '@/types'

export type Region =
  | 'us-east-1'
  | 'us-west-1'
  | 'us-west-2'
  | 'ap-southeast-1'
  | 'ap-northeast-1'
  | 'ap-northeast-2'
  | 'ap-southeast-2'
  | 'eu-west-1'
  | 'eu-west-2'
  | 'eu-west-3'
  | 'eu-central-1'
  | 'ca-central-1'
  | 'ap-south-1'
  | 'sa-east-1'

export type ReadReplicaSetUpVariables = {
  projectRef: string
  region: Region
  size: string // Not used in API yet, purely for UI atm
}

export async function setUpReadReplica({ projectRef, region }: ReadReplicaSetUpVariables) {
  const { data, error } = await post('/v1/projects/{ref}/read-replicas/setup', {
    params: {
      path: { ref: projectRef },
    },
    body: {
      read_replica_region: region,
    },
  })
  if (error) handleError(error)
  return data
}

type ReadReplicaSetUpData = Awaited<ReturnType<typeof setUpReadReplica>>

export const useReadReplicaSetUpMutation = ({
  onSuccess,
  onError,
  ...options
}: Omit<
  UseCustomMutationOptions<ReadReplicaSetUpData, ResponseError, ReadReplicaSetUpVariables>,
  'mutationFn'
> = {}) => {
  const queryClient = useQueryClient()
  return useMutation<ReadReplicaSetUpData, ResponseError, ReadReplicaSetUpVariables>({
    mutationFn: (vars) => setUpReadReplica(vars),
    async onSuccess(data, variables, context) {
      const { projectRef } = variables
      await queryClient.invalidateQueries({ queryKey: replicaKeys.list(projectRef) })
      await onSuccess?.(data, variables, context)
    },
    async onError(data, variables, context) {
      if (onError === undefined) {
        toast.error(`Failed to set up read replica: ${data.message}`)
      } else {
        onError(data, variables, context)
      }
    },
    ...options,
  })
}