import {z} from 'zod'

export type GetApiCalendarBookableUsageArgs = {TENANT: string, 'API-KEY': string, bookable_ids: Array<string>, start?: (string | null) | undefined, end?: (string | null) | undefined, location_id?: (string | null) | undefined};

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

export const eventServiceBookable = z.object({eventId: z.string(), serviceId: z.string(), bookableId: z.string(), start: z.string(), end: z.string()});

export const getApiCalendarBookableUsageResponse = z.array(eventServiceBookable);

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 Bookable Usage
 * 
 * GET /calendar/bookable/usage
 */
export const getApiCalendarBookableUsage = async (args: GetApiCalendarBookableUsageArgs, options: GetApiCalendarBookableUsageOptions) => {
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']))
for (const item of args.bookable_ids ?? []) query.append("bookable_ids", String(item))
if (args.start != null) query.append("start", String(args.start))
if (args.end != null) query.append("end", String(args.end))
if (args.location_id != null) query.append("location_id", String(args.location_id))

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