import {z} from 'zod'

export type GetApiApiV1TimeOffRequestsArgs = {filter?: string | undefined, orderBy?: string | undefined, page?: number | undefined, pageSize?: number | undefined, returnActions?: boolean | undefined};

export type GetApiApiV1TimeOffRequestsOptions = {baseUrl?: string | undefined, basic?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const timeOffRequestDailyAmountV1 = z.object({date: z.string().optional(), amount: z.number().optional()});

export const availableAction = z.object({href: z.string().optional(), fields: z.array(z.object({})).nullable().optional(), method: z.enum(["GET", "POST", "PUT", "PATCH", "DELETE"]).nullable().optional()});

export const timeOffRequestV1 = z.object({id: z.number().int().optional(), employeeId: z.number().int().optional(), categoryId: z.number().int().optional(), startDate: z.string().optional(), endDate: z.string().optional(), amount: z.number().optional(), unit: z.enum(["HOURS", "DAYS"]).optional(), status: z.enum(["REQUESTED", "APPROVED", "DENIED", "CANCELED"]).optional(), requestedAt: z.string().optional(), dailyAmounts: z.array(timeOffRequestDailyAmountV1).optional(), employeeNote: z.string().nullable().optional(), managerNote: z.string().nullable().optional(), statusUpdatedAt: z.string().nullable().optional(), statusUpdatedBy: z.number().int().nullable().optional(), _links: z.record(z.string(), availableAction).optional()});

export const timeOffRequestCollectionV1 = z.array(timeOffRequestV1);

export const getApiApiV1TimeOffRequestsResponse = z.object({data: timeOffRequestCollectionV1.optional(), meta: z.object({page: z.number().int().optional(), pageSize: z.number().int().optional(), totalPages: z.number().int().optional(), totalItems: z.number().int().optional()}).optional(), _links: z.object({prev: z.object({href: z.string().optional()}).nullable().optional(), next: z.object({href: z.string().optional()}).nullable().optional()}).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
};

/**
 * List Time Off Requests
 * 
 * GET /api/v1/time-off/requests
 * 
 * Also accepts auth: oauth
 */
export const getApiApiV1TimeOffRequests = async (args: GetApiApiV1TimeOffRequestsArgs, options?: GetApiApiV1TimeOffRequestsOptions) => {
const {baseUrl = "https://companySubDomain.bamboohr.com", fetch: fetchFn = fetch, basic} = options ?? {}

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

if (args.filter != null) query.append("filter", String(args.filter))
if (args.orderBy != null) query.append("orderBy", String(args.orderBy))
if (args.page != null) query.append("page", String(args.page))
if (args.pageSize != null) query.append("pageSize", String(args.pageSize))
if (args.returnActions != null) query.append("returnActions", String(args.returnActions))
if (basic !== undefined) headers.set('authorization', `Basic ${btoa(`${basic.username}:${basic.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/time-off/requests${query.size > 0 ? `?${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(getApiApiV1TimeOffRequestsResponse, await res.json())
};