import {z} from 'zod'

export type GetApiApiV3ShoppingFepProductConstraintTemplatesTemplateIdArgs = {templateId: number};

export type GetApiApiV3ShoppingFepProductConstraintTemplatesTemplateIdOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const optionValueTemplateFepResponse = z.object({optionGroupId: z.number().int(), optionGroupName: z.string(), formatType: z.string(), valueCandidates: z.array(z.string()), isOption: z.boolean(), placeholder: z.string().optional(), unitValues: z.array(z.string()).optional(), keyComment: z.string().optional(), valueComment: z.string().optional()});

export const salesOptionFepResponse = z.object({id: z.number().int(), key: z.string(), optionValueTemplate: optionValueTemplateFepResponse, isOneOfRequiredGroup: z.boolean()});

export const selectOneSaleOptionFepResponse = z.object({groupKey: z.string(), options: z.array(salesOptionFepResponse)});

export const getProductConstraintTemplateByIdFepResponse = z.object({selectOneSaleOptions: z.array(selectOneSaleOptionFepResponse), salesOptions: z.array(salesOptionFepResponse)});

export const getApiApiV3ShoppingFepProductConstraintTemplatesTemplateIdResponse = z.object({resultType: z.enum(["SUCCESS", "FAIL"]).optional(), error: z.object({errorCode: z.literal("COMMON_ERROR").optional(), reason: z.string().optional()}).optional(), success: getProductConstraintTemplateByIdFepResponse.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
};

/**
 * 템플릿 ID로 상품 제약 템플릿 상세 조회
 * 
 * GET /api/v3/shopping-fep/product-constraint-templates/{templateId}
 */
export const getApiApiV3ShoppingFepProductConstraintTemplatesTemplateId = async (args: GetApiApiV3ShoppingFepProductConstraintTemplatesTemplateIdArgs, options?: GetApiApiV3ShoppingFepProductConstraintTemplatesTemplateIdOptions) => {
const {baseUrl = "https://oauth2.cert.toss.im", fetch: fetchFn = fetch} = options ?? {}

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

const url = `${baseUrl.replace(/\/+$/, '')}/api/v3/shopping-fep/product-constraint-templates/${encodeURIComponent(String(args.templateId))}${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

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

return validateResponse(getApiApiV3ShoppingFepProductConstraintTemplatesTemplateIdResponse, await res.json())
};