import {z} from 'zod'

export type AppName = 'core' | 'gratitude' | 'pavlok3';

export type PlatformName = 'android' | 'ios';

export type DeviceName = 'PV2' | 'SC2' | 'PV3' | 'SC3';

export type GetApiApiV5BannersArgs = {app_name: AppName, platform_name: PlatformName, device_name?: DeviceName | undefined};

export type GetApiApiV5BannersOptions = {baseUrl?: string | undefined, RWAPIKeyHeader?: string | undefined, fetch?: typeof fetch | undefined};

export const banner = z.object({id: z.number().int().optional(), title: z.string().optional(), url: z.string().optional(), text: z.string().optional(), storeItemId: z.number().int().optional(), backgroundColor: z.string().optional(), backgroundImageFileName: z.string().optional(), backgroundImageContentType: z.string().optional(), backgroundImageFileSize: z.number().int().optional(), backgroundImageUpdatedAt: z.string().optional(), live: z.boolean().optional(), audience: z.string().optional(), appName: z.string().optional(), expiryTime: z.string().optional(), isOnboarding: z.boolean().optional(), relativeExpiry: z.number().int().optional(), imageId: z.number().int().optional(), backgroundImageUrl: z.string().optional()});

export const listOfBannersInResponse = z.object({banners: z.array(banner)});

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 banners
 * 
 * GET /api/v5/banners/
 */
export const getApiApiV5Banners = async (args: GetApiApiV5BannersArgs, options?: GetApiApiV5BannersOptions) => {
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.app_name != null) query.append("app_name", String(args.app_name))
if (args.platform_name != null) query.append("platform_name", String(args.platform_name))
if (args.device_name != null) query.append("device_name", String(args.device_name))
if (RWAPIKeyHeader !== undefined) headers.set("Authorization", RWAPIKeyHeader)

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