import {z} from 'zod'

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

export const appCabinetSchemasSubscriptionServerInfo = z.object({uuid: z.string(), name: z.string(), country_code: z.string().nullable().optional()});

export const trafficPurchaseInfo = z.object({id: z.number().int(), traffic_gb: z.number().int(), expires_at: z.string(), created_at: z.string(), days_remaining: z.number().int(), progress_percent: z.number()});

export const subscriptionData = z.object({id: z.number().int(), status: z.string(), is_trial: z.boolean(), start_date: z.string(), end_date: z.string(), days_left: z.number().int(), hours_left: z.number().int().optional(), minutes_left: z.number().int().optional(), time_left_display: z.string().optional(), traffic_limit_gb: z.number().int(), traffic_used_gb: z.number(), traffic_used_percent: z.number(), device_limit: z.number().int(), connected_squads: z.array(z.string()).optional(), servers: z.array(appCabinetSchemasSubscriptionServerInfo).optional(), autopay_enabled: z.boolean(), autopay_days_before: z.number().int(), subscription_url: z.string().nullable().optional(), hide_subscription_link: z.boolean().optional(), is_active: z.boolean(), is_expired: z.boolean(), is_limited: z.boolean().optional(), traffic_purchases: z.array(trafficPurchaseInfo).optional(), is_daily: z.boolean().optional(), is_daily_paused: z.boolean().optional(), daily_price_kopeks: z.number().int().nullable().optional(), next_daily_charge_at: z.string().nullable().optional(), tariff_id: z.number().int().nullable().optional(), tariff_name: z.string().nullable().optional(), traffic_reset_mode: z.string().nullable().optional()});

export const subscriptionStatusResponse = z.object({has_subscription: z.boolean(), subscription: subscriptionData.nullable().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
};

/**
 * Get Subscription
 * 
 * GET /cabinet/subscription
 */
export const getApiCabinetSubscription = async (options: GetApiCabinetSubscriptionOptions) => {
const {baseUrl, fetch: fetchFn = fetch, HTTPBearer} = options ?? {}

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

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

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