import {z} from 'zod'

export type Client = {buildNumber: string, appVersion: string, fcmRegistrationToken?: string | undefined, name: string, id?: string | undefined};

export type Device = {name?: string | undefined, platform: string, version?: string | undefined, model?: string | undefined, manufacturer?: string | undefined, toothPicCompatible: boolean};

export type SwitchCareerRequest = {username: string, client?: Client | undefined, device?: Device | undefined};

export type CreateApiAuthSwitchCareerArgs = {body: SwitchCareerRequest};

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

export const identity = z.object({username: z.string(), type: z.string(), clientId: z.string(), token: z.string()});

export const createApiAuthSwitchCareerResponse = z.object({data: identity});

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
};

/**
 * Switch career | Cambia carriera
 * 
 * POST /auth/switch-career
 */
export const createApiAuthSwitchCareer = async (args: CreateApiAuthSwitchCareerArgs, options?: CreateApiAuthSwitchCareerOptions) => {
const {baseUrl = "https://app.didattica.polito.it/api", fetch: fetchFn = fetch, BearerAuth} = options ?? {}

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

if (BearerAuth !== undefined) headers.set('authorization', `Bearer ${BearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/auth/switch-career${query.size > 0 ? `?${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(createApiAuthSwitchCareerResponse, await res.json())
};