import {z} from 'zod'

export type ActivityFigures = {class_average?: (number | null) | undefined, completed_count?: number | undefined};

export type StudentFigures = {general?: (number | null) | undefined, evaluation?: (number | null) | undefined, devoir?: (number | null) | undefined, controle?: (number | null) | undefined, devoirs_done?: number | undefined, devoirs_assigned?: number | undefined, controles_done?: number | undefined, controles_assigned?: number | undefined, autonomy_exercises?: number | undefined, last_activity?: (string | null) | undefined};

export type ClassSnapshot = {general_average?: (number | null) | undefined, evaluation_completion?: (number | null) | undefined, devoir_completion?: (number | null) | undefined, controle_completion?: (number | null) | undefined, activities?: {[key: string]: ActivityFigures} | undefined, students?: {[key: string]: StudentFigures} | undefined};

export type ClassVisitRecord = {snapshot: ClassSnapshot};

export type CreateApiTeacherClassesClassIdDashboardVisitArgs = {class_id: string, period?: (string | null) | undefined, body: ClassVisitRecord};

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

export const activityFigures = z.object({class_average: z.number().nullable().optional(), completed_count: z.number().int().optional()});

export const studentFigures = z.object({general: z.number().nullable().optional(), evaluation: z.number().nullable().optional(), devoir: z.number().nullable().optional(), controle: z.number().nullable().optional(), devoirs_done: z.number().int().optional(), devoirs_assigned: z.number().int().optional(), controles_done: z.number().int().optional(), controles_assigned: z.number().int().optional(), autonomy_exercises: z.number().int().optional(), last_activity: z.string().nullable().optional()});

export const classSnapshot = z.object({general_average: z.number().nullable().optional(), evaluation_completion: z.number().nullable().optional(), devoir_completion: z.number().nullable().optional(), controle_completion: z.number().nullable().optional(), activities: z.record(z.string(), activityFigures).optional(), students: z.record(z.string(), studentFigures).optional()});

export const classVisitReferenceResponse = z.object({baseline: classSnapshot.nullable(), baseline_at: z.string().nullable(), fresh: z.boolean()});

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
};

/**
 * Record Class Visit
 * 
 * POST /teacher/classes/{class_id}/dashboard/visit
 */
export const createApiTeacherClassesClassIdDashboardVisit = async (args: CreateApiTeacherClassesClassIdDashboardVisitArgs, options: CreateApiTeacherClassesClassIdDashboardVisitOptions) => {
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 (args.period != null) query.append("period", String(args.period))
if (OAuth2PasswordBearer !== undefined) headers.set('authorization', `Bearer ${OAuth2PasswordBearer}`)

const url = `${baseUrl.replace(/\/+$/, '')}/teacher/classes/${encodeURIComponent(String(args.class_id))}/dashboard/visit${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", 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(classVisitReferenceResponse, await res.json())
};