import {z} from 'zod'

export type GetApiUpdateCheckArgs = {deploymentKey: string, appVersion: string, packageHash?: string | undefined, label?: string | undefined, clientUniqueId?: string | undefined, isCompanion?: boolean | undefined};

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

export const updateCheckResponse = z.object({appVersion: z.string().optional(), description: z.string().optional(), isDisabled: z.boolean().optional(), isMandatory: z.boolean().optional(), rollout: z.number().int().gte(1).lte(100).optional(), label: z.string().optional(), isAvailable: z.boolean(), downloadURL: z.string().optional(), packageSize: z.number().int().optional(), shouldRunBinaryVersion: z.boolean().optional(), updateAppVersion: z.boolean().optional(), target_binary_range: z.string().optional()});

export const getApiUpdateCheckResponse = z.object({updateInfo: updateCheckResponse.optional()});

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
};

/**
 * Check for updates
 * 
 * GET /updateCheck
 */
export const getApiUpdateCheck = async (args: GetApiUpdateCheckArgs, options: GetApiUpdateCheckOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

if (args.deploymentKey != null) query.append("deploymentKey", String(args.deploymentKey))
if (args.appVersion != null) query.append("appVersion", String(args.appVersion))
if (args.packageHash != null) query.append("packageHash", String(args.packageHash))
if (args.label != null) query.append("label", String(args.label))
if (args.clientUniqueId != null) query.append("clientUniqueId", String(args.clientUniqueId))
if (args.isCompanion != null) query.append("isCompanion", String(args.isCompanion))

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