import {z} from 'zod'

export type GetApiBillingDashboardTopSellingItemsArgs = {TENANT: string, 'API-KEY': string, page?: (number | null) | undefined, per_page?: (number | null) | undefined, sort_by?: (string | null) | undefined, sort_direction?: ('asc' | 'desc' | null) | undefined, location_id?: (string | null) | undefined, start_date: string, end_date: string, location_ids?: (Array<string> | null) | undefined, payment_mediums?: (Array<string> | null) | undefined, tz: string, limit?: (number | null) | undefined};

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

export const topSellingItem = z.object({id: z.string(), name: z.string(), description: z.string().nullable().optional(), price: z.number(), totalQuantity: z.number().int(), numberOfPurchases: z.number().int(), totalRevenue: z.number(), averageQuantityPerPurchase: z.number()});

export const getApiBillingDashboardTopSellingItemsResponse = z.array(topSellingItem);

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
};

/**
 * Get Top Selling Items
 * 
 * GET /billing/dashboard/top-selling-items
 */
export const getApiBillingDashboardTopSellingItems = async (args: GetApiBillingDashboardTopSellingItemsArgs, options: GetApiBillingDashboardTopSellingItemsOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

if (args.TENANT != null) headers.set("TENANT", String(args.TENANT))
if (args['API-KEY'] != null) headers.set("API-KEY", String(args['API-KEY']))
if (args.page != null) query.append("page", String(args.page))
if (args.per_page != null) query.append("per_page", String(args.per_page))
if (args.sort_by != null) query.append("sort_by", String(args.sort_by))
if (args.sort_direction != null) query.append("sort_direction", String(args.sort_direction))
if (args.location_id != null) query.append("location_id", String(args.location_id))
if (args.start_date != null) query.append("start_date", String(args.start_date))
if (args.end_date != null) query.append("end_date", String(args.end_date))
for (const item of args.location_ids ?? []) query.append("location_ids", String(item))
for (const item of args.payment_mediums ?? []) query.append("payment_mediums", String(item))
if (args.tz != null) query.append("tz", String(args.tz))
if (args.limit != null) query.append("limit", String(args.limit))

const url = `${baseUrl.replace(/\/+$/, '')}/billing/dashboard/top-selling-items${query.size > 0 ? `?${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(getApiBillingDashboardTopSellingItemsResponse, await res.json())
};