import {z} from 'zod'

export type GetApiApiV5ChallengesCoachingParticipantsArgs = {challenge_id: number};

export type GetApiApiV5ChallengesCoachingParticipantsOptions = {baseUrl?: string | undefined, RWAPIKeyHeader?: string | undefined, fetch?: typeof fetch | undefined};

export const challengeParticipantForCoach = z.object({userId: z.number().int(), username: z.string().optional(), email: z.string().optional(), firstName: z.string().optional(), lastName: z.string().optional(), profilePictureUrl: z.string().optional(), teamName: z.string(), teamId: z.number().int(), approvedUserHabitsCount: z.number().int().optional(), totalUserHabitsCount: z.number().int().optional(), rank: z.number().int().optional(), points: z.number().int().optional()});

export const listOfChallengeParticipantForCoachInResponse = z.object({participants: z.array(challengeParticipantForCoach)});

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 all participants of a challenge
 * 
 * GET /api/v5/challenges/coaching/participants/
 */
export const getApiApiV5ChallengesCoachingParticipants = async (args: GetApiApiV5ChallengesCoachingParticipantsArgs, options?: GetApiApiV5ChallengesCoachingParticipantsOptions) => {
const {baseUrl = "https://api.pavlok.com", fetch: fetchFn = fetch, RWAPIKeyHeader} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/api/v5/challenges/coaching/participants/${query.size > 0 ? `?${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(listOfChallengeParticipantForCoachInResponse, await res.json())
};