import {z} from 'zod'

export type CreateApiAppDiscountArgs = {body: {coupon: string, applies_to: Array<number>, type: 'PRICE' | 'PERCENTAGE', value: number, max_uses?: number | undefined, expires_in?: string | undefined, min_price?: number | undefined, limit_criteria?: ('CLIENT_IDENTIFIER' | 'CLIENT_EMAIL' | 'CLIENT_DISCORD') | undefined, restricted_to_criteria?: ('CLIENT_IDENTIFIER' | 'CLIENT_EMAIL' | 'CLIENT_DISCORD') | undefined, restricted_to?: Array<string> | undefined}};

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

export const discount = z.object({id: z.number().optional(), store_id: z.number().optional(), coupon: z.string().optional(), type: z.enum(["PRICE", "PERCENTAGE"]).optional(), value: z.number().optional(), applies_to: z.array(z.number()).optional(), uses: z.number().optional(), max_uses: z.number().nullable().optional(), expires_in: z.string().nullable().optional(), min_price: z.number().nullable().optional(), limit_criteria: z.enum(["CLIENT_IDENTIFIER", "CLIENT_EMAIL", "CLIENT_DISCORD"]).nullable().optional(), restricted_to_criteria: z.enum(["CLIENT_IDENTIFIER", "CLIENT_EMAIL", "CLIENT_DISCORD"]).nullable().optional(), restricted_to: z.array(z.string()).nullable().optional(), created_at: z.string().optional(), updated_at: z.string().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
};

/**
 * Create Discount
 * 
 * POST /app/discount
 */
export const createApiAppDiscount = async (args: CreateApiAppDiscountArgs, options?: CreateApiAppDiscountOptions) => {
const {baseUrl = "https://api.centralcart.io/v1", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

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

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