import {z} from 'zod'

export type CategoryIDModel = 1 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 13 | 14 | 15 | 17 | 18 | 19 | 20 | 21 | 22 | 24 | 28 | 30 | 31;

export type CurrencyModel = 'rub' | 'uah' | 'kzt' | 'byn' | 'usd' | 'eur' | 'gbp' | 'cny' | 'try' | 'jpy' | 'brl';

export type CreateApiCustomDiscountsArgs = {body: {user_id: number, category_id: CategoryIDModel, discount_percent: number, min_price: number, max_price?: number | undefined, currency?: CurrencyModel | undefined}};

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

export const discountModel = z.object({category_id: z.number().int(), discount_id: z.number().int(), discount_percent: z.number().int(), discount_user_id: z.number().int(), max_price: z.number().int(), min_price: z.number().int(), user_id: z.number().int()});

export const respSystemInfo = z.object({rate_limit: z.object({limit: z.number().int(), remaining: z.number().int(), reset: z.number().int(), bucket: z.string().optional()}), visitor_id: z.number().int(), time: z.number().int(), log_id: z.number().int()});

export const createApiCustomDiscountsResponse = z.object({discount: discountModel, total: z.number().int(), system_info: respSystemInfo});

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
};

/**
 * Create Custom Discount
 * 
 * POST /custom-discounts
 */
export const createApiCustomDiscounts = async (args: CreateApiCustomDiscountsArgs, options?: CreateApiCustomDiscountsOptions) => {
const {baseUrl = "https://api.lzt.market", fetch: fetchFn = fetch, HTTPBearer} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/custom-discounts${query.size > 0 ? `?${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(createApiCustomDiscountsResponse, await res.json())
};