import {z} from 'zod'

export type ShiftMember = {type: 'user_member' | 'empty_member', user_id?: string | undefined};

export type UpdateCustomShiftRequest = {custom_shift: {start_time?: string | undefined, end_time?: string | undefined, assignments?: Array<{type: 'shift_assignment', member: ShiftMember}> | undefined}};

export type UpdateApiV3SchedulesIdCustomShiftsCustomShiftIdArgs = {id: string, custom_shift_id: string, body: UpdateCustomShiftRequest};

export type UpdateApiV3SchedulesIdCustomShiftsCustomShiftIdOptions = {baseUrl?: string | undefined, apiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const shiftMember = z.object({type: z.enum(["user_member", "empty_member"]), user_id: z.string().optional()});

export const shiftAssignment = z.object({id: z.string(), type: z.literal("shift_assignment"), member: shiftMember});

export const customShift = z.object({id: z.string(), type: z.literal("custom_shift"), start_time: z.string(), end_time: z.string(), assignments: z.array(shiftAssignment), self: z.string().optional(), html_url: z.string().optional()});

export const updateApiV3SchedulesIdCustomShiftsCustomShiftIdResponse = z.object({custom_shift: customShift});

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 custom shift
 * 
 * PUT /v3/schedules/{id}/custom_shifts/{custom_shift_id}
 */
export const updateApiV3SchedulesIdCustomShiftsCustomShiftId = async (args: UpdateApiV3SchedulesIdCustomShiftsCustomShiftIdArgs, options?: UpdateApiV3SchedulesIdCustomShiftsCustomShiftIdOptions) => {
const {baseUrl = "https://api.pagerduty.com", fetch: fetchFn = fetch, apiKey} = options ?? {}

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

if (apiKey !== undefined) headers.set("Authorization", apiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/v3/schedules/${encodeURIComponent(String(args.id))}/custom_shifts/${encodeURIComponent(String(args.custom_shift_id))}${query.size > 0 ? `?${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(updateApiV3SchedulesIdCustomShiftsCustomShiftIdResponse, await res.json())
};