import {z} from 'zod'

export type UpdateAssignmentClassScheduleRequest = {start_date?: (string | null) | undefined, due_date?: (string | null) | undefined};

export type UpdateApiTeacherAssignmentsAssignmentIdSchedulesClassIdArgs = {assignment_id: string, class_id: string, body: UpdateAssignmentClassScheduleRequest};

export type UpdateApiTeacherAssignmentsAssignmentIdSchedulesClassIdOptions = {baseUrl: string, OAuth2PasswordBearer?: string | undefined, fetch?: typeof fetch | undefined};

export const assignmentClassScheduleOut = z.object({class_id: z.string(), class_name: z.string(), school_year: z.string().nullable().optional(), is_past: z.boolean().optional(), start_date: z.string().nullable().optional(), due_date: z.string().nullable().optional(), student_ids: z.array(z.string()).nullable().optional()});

export const assignmentClassSchedulesResponse = z.object({status: z.string(), class_schedules: z.array(assignmentClassScheduleOut), start_date: z.string().nullable().optional(), due_date: z.string().nullable().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
};

/**
 * Update Assignment Class Schedule
 * 
 * PUT /teacher/assignments/{assignment_id}/schedules/{class_id}
 */
export const updateApiTeacherAssignmentsAssignmentIdSchedulesClassId = async (args: UpdateApiTeacherAssignmentsAssignmentIdSchedulesClassIdArgs, options: UpdateApiTeacherAssignmentsAssignmentIdSchedulesClassIdOptions) => {
const {baseUrl, fetch: fetchFn = fetch, OAuth2PasswordBearer} = options ?? {}

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

if (OAuth2PasswordBearer !== undefined) headers.set('authorization', `Bearer ${OAuth2PasswordBearer}`)

const url = `${baseUrl.replace(/\/+$/, '')}/teacher/assignments/${encodeURIComponent(String(args.assignment_id))}/schedules/${encodeURIComponent(String(args.class_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(assignmentClassSchedulesResponse, await res.json())
};