import {z} from 'zod'

export type GetApiAdminProgressDashboardChapitreChapitreIdProgressDetailsArgs = {chapitre_id: string};

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

export const studentProgressInChapitre = z.object({student_id: z.string(), student_name: z.string(), sub_chapitres_completed_count: z.number().int(), chapitre_progress_percentage: z.number(), exercises_passed_in_chapitre_count: z.number().int()});

export const chapitreDetailResponse = z.object({chapitre_id: z.string(), chapitre_name: z.string(), students_progress: z.array(studentProgressInChapitre)});

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 Chapitre Progress Details
 * 
 * GET /admin/progress-dashboard/chapitre/{chapitre_id}/progress-details
 */
export const getApiAdminProgressDashboardChapitreChapitreIdProgressDetails = async (args: GetApiAdminProgressDashboardChapitreChapitreIdProgressDetailsArgs, options: GetApiAdminProgressDashboardChapitreChapitreIdProgressDetailsOptions) => {
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/progress-dashboard/chapitre/${encodeURIComponent(String(args.chapitre_id))}/progress-details${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(chapitreDetailResponse, await res.json())
};