import {z} from 'zod'

export type GetApiAdminTeacherExamsExamIdArgs = {exam_id: string};

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

export const examExerciseOutput = z.object({id: z.number().int(), title: z.string(), content: z.string(), solution: z.string().nullable().optional(), points: z.number().optional(), figure_id: z.string().nullable().optional(), solution_figure_id: z.string().nullable().optional(), figure_content: z.string().nullable().optional(), figure_solution: z.string().nullable().optional(), preamble: z.string().nullable().optional(), estimated_minutes: z.number().int().nullable().optional()});

export const adminTeacherExamDetail = z.object({id: z.string(), teacher_id: z.string(), teacher_name: z.string(), teacher_email: z.string(), exam_subject_title: z.string(), exam_subject_images: z.array(z.string()), correction_images: z.array(z.string()), custom_grading_instructions: z.string().nullable().optional(), structured_exercises: z.array(examExerciseOutput), created_at: z.string(), updated_at: 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
};

/**
 * Get Teacher Exam Detail
 * 
 * GET /admin/teacher-exams/{exam_id}
 */
export const getApiAdminTeacherExamsExamId = async (args: GetApiAdminTeacherExamsExamIdArgs, options: GetApiAdminTeacherExamsExamIdOptions) => {
const {baseUrl, fetch: fetchFn = fetch, OAuth2PasswordBearer} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/admin/teacher-exams/${encodeURIComponent(String(args.exam_id))}${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(adminTeacherExamDetail, await res.json())
};