import {z} from 'zod'

export type ImportResourceType = 'business-unit' | 'category' | 'customer' | 'discount-code' | 'inventory' | 'order' | 'order-patch' | 'price' | 'product' | 'product-draft' | 'product-selection' | 'product-tailoring' | 'product-type' | 'product-variant' | 'product-variant-patch' | 'standalone-price' | 'variant' | 'type';

export type LocalizedString = {[key: string]: string};

export type ProductSelectionMode = 'Individual' | 'IndividualExclusion';

export type ReferenceType = 'associate-role' | 'business-unit' | 'cart' | 'cart-discount' | 'category' | 'channel' | 'customer' | 'customer-group' | 'discount-code' | 'key-value-document' | 'order' | 'payment' | 'price' | 'product' | 'product-discount' | 'product-type' | 'product-variant' | 'variant' | 'shipping-method' | 'state' | 'store' | 'tax-category' | 'type';

export type TypeKeyReference = {key: string, typeId: ReferenceType};

export type FieldContainer = {[key: string]: string};

export type Custom = {type: TypeKeyReference, fields?: FieldContainer | undefined};

export type ProductKeyReference = {key: string, typeId: ReferenceType};

export type VariantSelectionType = 'includeOnly' | 'includeAllExcept';

export type VariantSelection = {type: VariantSelectionType, skus?: Array<string> | undefined};

export type VariantExclusion = {skus?: Array<string> | undefined};

export type ProductSelectionAssignment = {product: ProductKeyReference, variantSelection?: VariantSelection | undefined, variantExclusion?: VariantExclusion | undefined};

export type ProductSelectionImport = {key: string, name: LocalizedString, mode?: ProductSelectionMode | undefined, custom?: Custom | undefined, assignments?: Array<ProductSelectionAssignment> | undefined};

export type ProductSelectionImportRequest = {type: ImportResourceType, resources: Array<ProductSelectionImport>};

export type CreateApiProjectKeyProductSelectionsImportContainersImportContainerKeyArgs = {body: ProductSelectionImportRequest};

export type CreateApiProjectKeyProductSelectionsImportContainersImportContainerKeyOptions = {baseUrl?: string | undefined, oauth20?: string | undefined, fetch?: typeof fetch | undefined};

export const importOperationState = z.enum(["processing", "validationFailed"]);

export const errorObject = z.object({code: z.string(), message: z.string()});

export const importOperationStatus = z.object({operationId: z.string().optional(), state: importOperationState, errors: z.array(errorObject).optional()});

export const importResponse = z.object({operationStatus: z.array(importOperationStatus)});

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
};

/**
 * Creates an Import Request for Product Selections.
 * 
 * POST /{projectKey}/product-selections/import-containers/{importContainerKey}
 */
export const createApiProjectKeyProductSelectionsImportContainersImportContainerKey = async (args: CreateApiProjectKeyProductSelectionsImportContainersImportContainerKeyArgs, options?: CreateApiProjectKeyProductSelectionsImportContainersImportContainerKeyOptions) => {
const {baseUrl = "https://import.europe-west1.gcp.commercetools.com", fetch: fetchFn = fetch, oauth20} = options ?? {}

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

if (oauth20 !== undefined) headers.set('authorization', `Bearer ${oauth20}`)

const url = `${baseUrl.replace(/\/+$/, '')}/${encodeURIComponent(String(args.projectKey))}/product-selections/import-containers/${encodeURIComponent(String(args.importContainerKey))}${query.size > 0 ? `?${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(importResponse, await res.json())
};