import {z} from 'zod'

export type GetApiV2LearnQuizArgs = {Authorization: string, uuid: string, word_id: string};

export type GetApiV2LearnQuizOptions = {baseUrl: string, fetch?: typeof fetch | undefined};

export const bluenteInternalCourseV2ModelLearnQuizOptions = z.object({answer: z.boolean().optional(), id: z.number().int().optional(), illustration: z.string().optional(), speech: z.string().optional(), word: z.string().optional()});

export const bluenteInternalCourseV2ModelLearnQuiz = z.object({answer_id: z.number().int().optional(), options: z.array(bluenteInternalCourseV2ModelLearnQuizOptions).optional(), question: z.string().optional()});

export const getApiV2LearnQuizResponse = z.object({code: z.number().int().optional(), data: z.array(bluenteInternalCourseV2ModelLearnQuiz).optional(), message: z.string().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 quiz associate with the word.
 * 
 * GET /v2/learn/quiz
 */
export const getApiV2LearnQuiz = async (args: GetApiV2LearnQuizArgs, options: GetApiV2LearnQuizOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

if (args.Authorization != null) headers.set("Authorization", String(args.Authorization))
if (args.uuid != null) query.append("uuid", String(args.uuid))
if (args.word_id != null) query.append("word_id", String(args.word_id))

const url = `${baseUrl.replace(/\/+$/, '')}/v2/learn/quiz${query.size > 0 ? `?${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(getApiV2LearnQuizResponse, await res.json())
};