import {z} from 'zod'

export type GetApiApiLessonsArgs = {page?: number | undefined};

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

export const curriculumType = z.object({id: z.string().optional(), name: z.string().min(1).max(60), titles: z.string().optional()});

export const curriculum = z.object({id: z.string().optional(), title: z.string().min(1).max(150), subtitle: z.string().min(1).max(255), company: z.string().optional(), curriculum_type: z.string(), training_sample: z.string().max(200).nullable().optional(), is_technical: z.boolean().optional(), is_archived: z.boolean().optional(), is_published: z.boolean().optional(), is_editable: z.boolean().optional(), author_name: z.string().optional(), author_icon_url: z.string().max(255).nullable().optional(), is_already_in_use: z.string().optional(), active_training_id: z.string().optional(), is_available_for_free: z.boolean().optional(), curriculum_type_details: curriculumType.optional(), action_id: z.enum(["lesson_submit", "branching"]).optional(), includes_video: z.string().optional(), average_length: z.string().optional()});

export const questionAnswer = z.object({id: z.string().optional(), answer: z.string().min(1).max(150), correct: z.boolean().optional(), position: z.number().int().gte(-32768).lte(32767).optional(), lesson_question: z.string(), next_lesson: z.string().nullable().optional(), explanation: z.string().nullable().optional()});

export const question = z.object({id: z.string().optional(), title: z.string().optional(), explanation: z.string().min(1).max(200), position: z.number().int().gte(-32768).lte(32767).optional(), lesson: z.string(), answers: z.array(questionAnswer), type: z.enum(["multi_select", "multi_choice"]).optional(), curriculum_id: z.string().min(1), curriculum_title: z.string().min(1), curriculum_action_id: z.string().min(1), lesson_id: z.string().optional()});

export const customLessonVideo = z.object({id: z.string().optional(), lesson: z.string().nullable().optional(), service_id: z.number().int().optional(), name: z.string().min(1).max(300), duration: z.number().int().optional(), hashed_id: z.string().optional(), progress: z.string(), thumbnail: z.string().min(1).max(500), processed: z.boolean().optional(), plays: z.number().int().gte(-2147483648).lte(2147483647).optional()});

export const lesson = z.object({id: z.string().optional(), title: z.string().min(1).optional(), subtitle: z.string().max(200).optional(), curriculum: curriculum, note: z.string().optional(), summary: z.string().optional(), help_content: z.string().max(200).nullable().optional(), written_content: z.string().max(200).nullable().optional(), explanation_content: z.string().max(200).nullable().optional(), position: z.number().int().gte(-32768).lte(32767).optional(), questions: z.array(question).optional(), video_url: z.string().max(200).nullable().optional(), video_position: z.enum(["bottom", "top"]).optional(), includes_video: z.boolean().optional(), employees_assigned: z.string().optional(), employees_finished: z.string().optional(), is_simple_form: z.boolean().optional(), lesson_custom_video: z.array(customLessonVideo).optional()});

export const getApiApiLessonsResponse = z.object({count: z.number().int(), next: z.string().nullable().optional(), previous: z.string().nullable().optional(), results: z.array(lesson)});

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 /api/lessons/
 */
export const getApiApiLessons = async (args: GetApiApiLessonsArgs, options?: GetApiApiLessonsOptions) => {
const {baseUrl = "https://app.haekka.com", fetch: fetchFn = fetch, Bearer} = options ?? {}

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

if (args.page != null) query.append("page", String(args.page))
if (Bearer !== undefined) headers.set("Authorization", Bearer)

const url = `${baseUrl.replace(/\/+$/, '')}/api/lessons/${query.size > 0 ? `?${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(getApiApiLessonsResponse, await res.json())
};