import {z} from 'zod'

export type DiscountCodeType = 'percentage' | 'fixed';

export type UpdateCampaignDiscountCodeRequest = {items?: (Array<string> | null) | undefined, include_future?: boolean | undefined, amount: number, type?: DiscountCodeType | undefined, active?: boolean | undefined, code?: string | undefined, uses?: (number | null) | undefined, starts_at?: (string | null) | undefined, expires_at?: (string | null) | undefined};

export type UpdateApiV1CampaignsCampaignDiscountCodesDiscountCodeArgs = {campaign: number, discountCode: number, body: UpdateCampaignDiscountCodeRequest};

export type UpdateApiV1CampaignsCampaignDiscountCodesDiscountCodeOptions = {baseUrl?: string | undefined, http?: string | undefined, fetch?: typeof fetch | undefined};

export const campaignDiscountCodeResource = z.object({id: z.string(), campaign_id: z.string(), items: z.string().optional(), applies_to: z.object({item_ids: z.string()}).optional(), code: z.string(), type: z.string(), amount: z.number(), used: z.string(), uses: z.string(), active: z.string(), all_items: z.string().optional(), include_future: z.string().optional(), total_discount: z.string(), starts_at: z.string(), expires_at: z.string(), created_at: z.string(), updated_at: z.string()});

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
};

/**
 * Update a discount code
 * 
 * PUT /v1/campaigns/{campaign}/discount-codes/{discountCode}
 */
export const updateApiV1CampaignsCampaignDiscountCodesDiscountCode = async (args: UpdateApiV1CampaignsCampaignDiscountCodesDiscountCodeArgs, options?: UpdateApiV1CampaignsCampaignDiscountCodesDiscountCodeOptions) => {
const {baseUrl = "https://api.givebutter.com", fetch: fetchFn = fetch, http} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/v1/campaigns/${encodeURIComponent(String(args.campaign))}/discount-codes/${encodeURIComponent(String(args.discountCode))}${query.size > 0 ? `?${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(campaignDiscountCodeResource, await res.json())
};