import {z} from 'zod'

export type GetLoginInfoRequest = {id_token: string};

export type CreateApiUserGetLoginInfoArgs = {body: GetLoginInfoRequest};

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

export const namespace = z.enum(["user", "team", "organization", "static-configuration", "dcso-organization"]);

export const tenantOwner = z.object({namespace: namespace, owner_id: z.string(), display_name: z.string().nullable().optional()});

export const tenantDescription = z.object({tenant_id: z.string(), owner: tenantOwner, name: z.string(), icon_url: z.string()});

export const getLoginInfoResponse = z.object({user_id: z.string(), user_email: z.string(), allowed_tenants: z.array(tenantDescription)});

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 Login Info Endpoint
 * 
 * POST /user/get-login-info
 */
export const createApiUserGetLoginInfo = async (args: CreateApiUserGetLoginInfoArgs, options: CreateApiUserGetLoginInfoOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

const url = `${baseUrl.replace(/\/+$/, '')}/user/get-login-info${query.size > 0 ? `?${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(getLoginInfoResponse, await res.json())
};