import {z} from 'zod'

export type MiniAppTariffsRequest = {initData: string};

export type CreateApiMiniappSubscriptionTariffsArgs = {body: MiniAppTariffsRequest};

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

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

export const miniAppTariffPeriod = z.object({days: z.number().int(), months: z.number().int().nullable().optional(), label: z.string(), price_kopeks: z.number().int(), price_label: z.string(), price_per_month_kopeks: z.number().int().nullable().optional(), price_per_month_label: z.string().nullable().optional(), original_price_kopeks: z.number().int().nullable().optional(), original_price_label: z.string().nullable().optional(), discount_percent: z.number().int().optional()});

export const miniAppTariff = z.object({id: z.number().int(), name: z.string(), description: z.string().nullable().optional(), tier_level: z.number().int().optional(), traffic_limit_gb: z.number().int(), traffic_limit_label: z.string(), is_unlimited_traffic: z.boolean().optional(), device_limit: z.number().int(), servers_count: z.number().int(), servers: z.array(miniAppConnectedServer).optional(), periods: z.array(miniAppTariffPeriod).optional(), is_current: z.boolean().optional(), is_available: z.boolean().optional(), switch_cost_kopeks: z.number().int().nullable().optional(), switch_cost_label: z.string().nullable().optional(), is_upgrade: z.boolean().nullable().optional(), is_switch_free: z.boolean().nullable().optional(), is_daily: z.boolean().optional(), daily_price_kopeks: z.number().int().optional(), daily_price_label: z.string().nullable().optional()});

export const miniAppTrafficTopupPackage = z.object({gb: z.number().int(), price_kopeks: z.number().int(), price_label: z.string(), original_price_kopeks: z.number().int().nullable().optional(), original_price_label: z.string().nullable().optional(), discount_percent: z.number().int().optional()});

export const miniAppCurrentTariff = z.object({id: z.number().int(), name: z.string(), description: z.string().nullable().optional(), tier_level: z.number().int().optional(), traffic_limit_gb: z.number().int(), traffic_limit_label: z.string(), is_unlimited_traffic: z.boolean().optional(), device_limit: z.number().int(), servers_count: z.number().int(), monthly_price_kopeks: z.number().int().optional(), traffic_topup_enabled: z.boolean().optional(), traffic_topup_packages: z.array(miniAppTrafficTopupPackage).optional(), max_topup_traffic_gb: z.number().int().optional(), available_topup_gb: z.number().int().nullable().optional(), is_daily: z.boolean().optional(), daily_price_kopeks: z.number().int().optional(), daily_price_label: z.string().nullable().optional()});

export const miniAppPromoGroup = z.object({id: z.number().int(), name: z.string(), server_discount_percent: z.number().int().optional(), traffic_discount_percent: z.number().int().optional(), device_discount_percent: z.number().int().optional(), period_discounts: z.record(z.string(), z.number().int()).optional(), apply_discounts_to_addons: z.boolean().optional()});

export const miniAppTariffsResponse = z.object({success: z.boolean().optional(), sales_mode: z.string().optional(), tariffs: z.array(miniAppTariff).optional(), current_tariff: miniAppCurrentTariff.nullable().optional(), balance_kopeks: z.number().int().optional(), balance_label: z.string().nullable().optional(), promo_group: miniAppPromoGroup.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 Tariffs Endpoint
 * 
 * POST /miniapp/subscription/tariffs
 */
export const createApiMiniappSubscriptionTariffs = async (args: CreateApiMiniappSubscriptionTariffsArgs, options: CreateApiMiniappSubscriptionTariffsOptions) => {
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/tariffs${query.size > 0 ? `?${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(miniAppTariffsResponse, await res.json())
};