import {z} from 'zod'

export type MiniAppSubscriptionSettingsRequest = {initData: string, subscription_id?: (number | null) | undefined};

export type CreateApiMiniappSubscriptionSettingsArgs = {body: MiniAppSubscriptionSettingsRequest};

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

export const miniAppConnectedServer = z.object({uuid: z.string(), name: z.string()});

export const miniAppSubscriptionCurrentSettings = z.object({servers: z.array(miniAppConnectedServer).optional(), traffic_limit_gb: z.number().int().nullable().optional(), traffic_limit_label: z.string().nullable().optional(), device_limit: z.number().int().optional()});

export const miniAppSubscriptionServerOption = z.object({uuid: z.string(), name: z.string().nullable().optional(), price_kopeks: z.number().int().nullable().optional(), price_label: z.string().nullable().optional(), discount_percent: z.number().int().nullable().optional(), is_connected: z.boolean().optional(), is_available: z.boolean().optional(), disabled_reason: z.string().nullable().optional()});

export const miniAppSubscriptionServersSettings = z.object({available: z.array(miniAppSubscriptionServerOption).optional(), min: z.number().int().optional(), max: z.number().int().optional(), can_update: z.boolean().optional(), hint: z.string().nullable().optional()});

export const miniAppSubscriptionTrafficOption = z.object({value: z.number().int().nullable().optional(), label: z.string().nullable().optional(), price_kopeks: z.number().int().nullable().optional(), price_label: z.string().nullable().optional(), is_current: z.boolean().optional(), is_available: z.boolean().optional(), description: z.string().nullable().optional()});

export const miniAppSubscriptionTrafficSettings = z.object({options: z.array(miniAppSubscriptionTrafficOption).optional(), can_update: z.boolean().optional(), current_value: z.number().int().nullable().optional()});

export const miniAppSubscriptionDeviceOption = z.object({value: z.number().int(), label: z.string().nullable().optional(), price_kopeks: z.number().int().nullable().optional(), price_label: z.string().nullable().optional()});

export const miniAppSubscriptionDevicesSettings = z.object({options: z.array(miniAppSubscriptionDeviceOption).optional(), can_update: z.boolean().optional(), min: z.number().int().optional(), max: z.number().int().optional(), step: z.number().int().optional(), current: z.number().int().optional(), price_kopeks: z.number().int().nullable().optional(), price_label: z.string().nullable().optional()});

export const miniAppSubscriptionBillingContext = z.object({months_remaining: z.number().int().optional(), period_hint_days: z.number().int().nullable().optional(), renews_at: z.string().nullable().optional()});

export const miniAppSubscriptionSettings = z.object({subscription_id: z.number().int(), currency: z.string().optional(), current: miniAppSubscriptionCurrentSettings, servers: miniAppSubscriptionServersSettings, traffic: miniAppSubscriptionTrafficSettings, devices: miniAppSubscriptionDevicesSettings, billing: miniAppSubscriptionBillingContext.nullable().optional()});

export const miniAppSubscriptionSettingsResponse = z.object({success: z.boolean().optional(), settings: miniAppSubscriptionSettings});

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 Settings Endpoint
 * 
 * POST /miniapp/subscription/settings
 */
export const createApiMiniappSubscriptionSettings = async (args: CreateApiMiniappSubscriptionSettingsArgs, options: CreateApiMiniappSubscriptionSettingsOptions) => {
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 = `${baseUrl.replace(/\/+$/, '')}/miniapp/subscription/settings${query.size > 0 ? `?${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(miniAppSubscriptionSettingsResponse, await res.json())
};