import {z} from 'zod'

export type ProductOptionVariantEdit = {name: string, option_type?: ('option' | 'color') | undefined, value: string, custom?: string | undefined};

export type VariantEditFields = {price?: number | undefined, sku?: string | undefined, barcode?: string | undefined, stock?: number | undefined, stock_unlimited?: boolean | undefined, stock_threshold?: number | undefined, stock_notification?: boolean | undefined, cost_per_item?: number | undefined, compare_at_price?: number | undefined, image_id?: number | undefined, options?: Array<ProductOptionVariantEdit> | undefined, weight?: number | undefined};

export type VariantEdit = {variant?: VariantEditFields | undefined};

export type UpdateApiProductsIdVariantsVariantIdJsonArgs = {id: number, variant_id: number, fields?: unknown | undefined, body: VariantEdit};

export type UpdateApiProductsIdVariantsVariantIdJsonOptions = {baseUrl?: string | undefined, BasicAuthentication?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const productVariantOptionFields = z.object({product_option_id: z.number().int().optional(), product_option_value_id: z.number().int().optional(), option_type: z.enum(["option", "color"]).optional(), name: z.string().optional(), value: z.string().optional(), custom: z.string().nullable().optional(), product_option_position: z.number().int().optional(), product_value_position: z.number().int().optional()});

export const imageFields = z.object({id: z.number().int().optional(), position: z.number().int().optional(), url: z.string().optional()});

export const variantFields = z.object({id: z.number().int().optional(), position: z.number().int().optional(), created_at: z.string().optional(), updated_at: z.string().optional(), price: z.number().optional(), sku: z.string().optional(), barcode: z.string().optional(), stock: z.number().int().optional(), stock_unlimited: z.boolean().optional(), stock_threshold: z.number().int().optional(), stock_notification: z.boolean().optional(), cost_per_item: z.number().nullable().optional(), compare_at_price: z.number().nullable().optional(), options: z.array(productVariantOptionFields).optional(), image: imageFields.optional(), weight: z.number().optional(), discount: z.number().optional()});

export const variant = z.object({variant: variantFields.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
};

/**
 * Modify an existing Product Variant.
 * 
 * PUT /products/{id}/variants/{variant_id}.json
 * 
 * Also accepts auth: loginParameter + authtokenParameter, OAuth2
 */
export const updateApiProductsIdVariantsVariantIdJson = async (args: UpdateApiProductsIdVariantsVariantIdJsonArgs, options?: UpdateApiProductsIdVariantsVariantIdJsonOptions) => {
const {baseUrl = "https://api.jumpseller.com/v1", fetch: fetchFn = fetch, BasicAuthentication} = options ?? {}

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

if (args.fields != null) query.append("fields", String(args.fields))
if (BasicAuthentication !== undefined) headers.set('authorization', `Basic ${btoa(`${BasicAuthentication.username}:${BasicAuthentication.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/products/${encodeURIComponent(String(args.id))}/variants/${encodeURIComponent(String(args.variant_id))}.json${query.size > 0 ? `?${query}` : ''}`

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