import {z} from 'zod'

export type UpdateOnHandInventoryRequestV2ProductVariantInventory = {sku?: string | undefined, product_variant_id?: string | undefined, on_hand_quantity?: number | undefined};

export type UpdateOnHandInventoryRequestV2 = {inventories?: Array<UpdateOnHandInventoryRequestV2ProductVariantInventory> | undefined};

export type PatchApiProductInventoryByProductVariantIdsArgs = {body: UpdateOnHandInventoryRequestV2};

export type PatchApiProductInventoryByProductVariantIdsOptions = {baseUrl?: string | undefined, OAuth?: string | undefined, AppCredentials?: string | undefined, fetch?: typeof fetch | undefined};

export const externalInventoryQuantityType = z.enum(["QUANTITY", "UNTRACKED"]);

export const externalInventoryQuantity = z.object({type: externalInventoryQuantityType.optional(), quantity: z.number().int().optional()});

export const externalProductVariantInventory = z.object({on_hand_quantity: externalInventoryQuantity.optional(), committed_quantity: externalInventoryQuantity.optional(), available_quantity: externalInventoryQuantity.optional()});

export const updateOnHandInventoryResponseV2 = z.object({inventories: z.record(z.string(), externalProductVariantInventory).optional()});

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
};

/**
 * PATCH /product-inventory/by-product-variant-ids
 * 
 * PATCH /product-inventory/by-product-variant-ids
 */
export const patchApiProductInventoryByProductVariantIds = async (args: PatchApiProductInventoryByProductVariantIdsArgs, options?: PatchApiProductInventoryByProductVariantIdsOptions) => {
const {baseUrl = "https://www.faire.com/external-api/v2", fetch: fetchFn = fetch, OAuth, AppCredentials} = options ?? {}

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

if (OAuth !== undefined) headers.set("X-FAIRE-OAUTH-ACCESS-TOKEN", OAuth)
if (AppCredentials !== undefined) headers.set("X-FAIRE-APP-CREDENTIALS", AppCredentials)

const url = `${baseUrl.replace(/\/+$/, '')}/product-inventory/by-product-variant-ids${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "PATCH", 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(updateOnHandInventoryResponseV2, await res.json())
};