import {z} from 'zod'

export type BatchOperation = {method: 'add' | 'edit' | 'delete', object_id?: string | undefined, object?: {[key: string]: unknown} | undefined, trigger_webhook?: boolean | undefined};

export type BatchRequest = {operations: Array<BatchOperation>};

export type CreateApiBucketsSlugObjectsBatchArgs = {body: BatchRequest};

export type CreateApiBucketsSlugObjectsBatchOptions = {baseUrl?: string | undefined, writeKey?: string | undefined, fetch?: typeof fetch | undefined};

export const metadata = z.record(z.string(), z.unknown());

export const object = z.object({id: z.string().optional(), type: z.string().optional(), title: z.string().optional(), slug: z.string().optional(), status: z.enum(["published", "draft"]).optional(), content: z.string().nullable().optional(), metadata: metadata.optional(), bucket: z.string().optional(), thumbnail: z.string().nullable().optional(), locale: z.string().nullable().optional(), created_at: z.string().optional(), created_by: z.string().optional(), modified_at: z.string().optional(), modified_by: z.string().optional(), published_at: z.string().nullable().optional(), publish_at: z.union([z.string(), z.number()]).nullable().optional(), unpublish_at: z.union([z.string(), z.number()]).nullable().optional(), assigned_to: z.string().nullable().optional(), assigned_by: z.string().nullable().optional(), assigned_at: z.string().nullable().optional()}).and(z.record(z.string(), z.unknown()));

export const batchResponse = z.object({operations: z.array(z.object({method: z.enum(["add", "edit", "delete"]).optional(), status: z.enum(["success", "error"]).optional(), object: object.optional(), message: z.string().optional()}).and(z.record(z.string(), z.unknown())))});

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * Batch create, update, and delete Objects
 * 
 * POST /buckets/{slug}/objects/batch
 */
export const createApiBucketsSlugObjectsBatch = async (args: CreateApiBucketsSlugObjectsBatchArgs, options?: CreateApiBucketsSlugObjectsBatchOptions) => {
const {baseUrl = "https://api.cosmicjs.com/v3", fetch: fetchFn = fetch, writeKey} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('content-type', "application/json")
headers.set('accept', "application/json")

if (writeKey !== undefined) headers.set('authorization', `Bearer ${writeKey}`)

const url = `${baseUrl.replace(/\/+$/, '')}/buckets/${encodeURIComponent(String(args.slug))}/objects/batch${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(batchResponse, await res.json())
};