refactor: project architecture refactor, container splitting

2026-05-17 00:01:28 +03:00
parent e0b5218037
commit 30fb774d93
367 changed files with 2609 additions and 864 deletions
@@ -0,0 +1,238 @@
+import { writable, get } from "svelte/store";
+import { emailError, buildTelegramOAuthStartUrl } from "../authHelpers.js";
+
+export function createAccountStore({
+  api,
+  publicApi,
+  setToken,
+  loadData,
+  t,
+  showToast,
+  clearToken,
+  markManualLogout,
+  showLogin,
+  telegramSdk,
+  getTg,
+  telegramOAuthClientId,
+  currentLang,
+  normalizeLangCode,
+  updateLocalData,
+}) {
+  const state = writable({
+    linkEmailOpen: false,
+    linkEmailBusy: false,
+    linkTelegramBusy: false,
+    linkEmailValue: "",
+    linkEmailPending: "",
+    linkEmailCode: "",
+    linkEmailStatus: "",
+    linkEmailIsError: false,
+    linkEmailFieldError: "",
+    linkEmailResendCooldown: 0,
+    languageBusy: false,
+  });
+
+  let linkEmailResendTimer = null;
+
+  function setLinkEmailStatus(message, isError = false) {
+    state.update((s) => ({ ...s, linkEmailStatus: message, linkEmailIsError: isError }));
+  }
+
+  function clearCooldownTimer() {
+    if (linkEmailResendTimer) {
+      window.clearInterval(linkEmailResendTimer);
+      linkEmailResendTimer = null;
+    }
+  }
+
+  function startCooldownTimer(seconds = 60) {
+    clearCooldownTimer();
+    state.update((s) => ({ ...s, linkEmailResendCooldown: Math.max(0, Number(seconds || 60)) }));
+    linkEmailResendTimer = window.setInterval(() => {
+      const s = get(state);
+      if (s.linkEmailResendCooldown <= 1) {
+        state.update((s) => ({ ...s, linkEmailResendCooldown: 0 }));
+        clearCooldownTimer();
+        return;
+      }
+      state.update((s) => ({ ...s, linkEmailResendCooldown: s.linkEmailResendCooldown - 1 }));
+    }, 1000);
+  }
+
+  function openLinkEmailDialog(email) {
+    state.update((s) => ({
+      ...s,
+      linkEmailOpen: true,
+      linkEmailBusy: false,
+      linkEmailCode: "",
+      linkEmailPending: "",
+      linkEmailStatus: "",
+      linkEmailIsError: false,
+      linkEmailFieldError: "",
+      linkEmailValue: email || "",
+      linkEmailResendCooldown: 0,
+    }));
+    clearCooldownTimer();
+  }
+
+  function closeLinkEmailDialog() {
+    state.update((s) => ({
+      ...s,
+      linkEmailOpen: false,
+      linkEmailBusy: false,
+      linkEmailCode: "",
+      linkEmailPending: "",
+      linkEmailStatus: "",
+      linkEmailIsError: false,
+      linkEmailFieldError: "",
+      linkEmailResendCooldown: 0,
+    }));
+    clearCooldownTimer();
+  }
+
+  async function requestLinkEmailCode() {
+    const s = get(state);
+    if (s.linkEmailPending && s.linkEmailResendCooldown > 0) return;
+    const normalized = String(s.linkEmailValue || "")
+      .trim()
+      .toLowerCase();
+    if (!normalized || !normalized.includes("@")) {
+      state.update((s) => ({ ...s, linkEmailFieldError: t("wa_auth_invalid_email") }));
+      return;
+    }
+    state.update((s) => ({ ...s, linkEmailFieldError: "", linkEmailBusy: true }));
+    setLinkEmailStatus(t("wa_auth_sending_code"));
+    try {
+      const response = await api("/account/email/request", {
+        method: "POST",
+        body: JSON.stringify({ email: normalized }),
+      });
+      if (!response?.ok) throw response;
+      state.update((s) => ({ ...s, linkEmailPending: normalized, linkEmailCode: "" }));
+      setLinkEmailStatus("");
+      startCooldownTimer(60);
+    } catch (error) {
+      setLinkEmailStatus(emailError(error, t("wa_auth_send_code_failed"), t), true);
+    } finally {
+      state.update((s) => ({ ...s, linkEmailBusy: false }));
+    }
+  }
+
+  async function verifyLinkEmailCode() {
+    const s = get(state);
+    const code = String(s.linkEmailCode || "")
+      .replace(/\\D/g, "")
+      .slice(0, 6);
+    if (!s.linkEmailPending) {
+      setLinkEmailStatus(t("wa_auth_send_code_failed"), true);
+      return;
+    }
+    if (code.length !== 6) {
+      setLinkEmailStatus(t("wa_auth_enter_code_6digits"), true);
+      return;
+    }
+    state.update((s) => ({ ...s, linkEmailBusy: true }));
+    setLinkEmailStatus(t("wa_auth_checking_code"));
+    try {
+      const response = await api("/account/email/verify", {
+        method: "POST",
+        body: JSON.stringify({ email: s.linkEmailPending, code }),
+      });
+      if (!response?.ok) throw response;
+      if (response?.csrf_token) setToken("", response.csrf_token);
+      await loadData();
+      closeLinkEmailDialog();
+      showToast(t("wa_settings_linked"));
+    } catch (error) {
+      setLinkEmailStatus(emailError(error, t("wa_auth_invalid_code"), t), true);
+    } finally {
+      state.update((s) => ({ ...s, linkEmailBusy: false }));
+    }
+  }
+
+  async function linkTelegramAccountWithPayload(payload) {
+    state.update((s) => ({ ...s, linkTelegramBusy: true }));
+    try {
+      const response = await api("/account/telegram/link", {
+        method: "POST",
+        body: JSON.stringify(payload),
+      });
+      if (!response?.ok) throw response;
+      if (response?.csrf_token) setToken("", response.csrf_token);
+      await loadData();
+      showToast(t("wa_settings_linked"));
+    } catch (error) {
+      showToast(error?.message || t("wa_auth_telegram_not_confirmed"));
+    } finally {
+      state.update((s) => ({ ...s, linkTelegramBusy: false }));
+    }
+  }
+
+  async function linkTelegramAccount(getTelegramMiniAppInitData) {
+    const s = get(state);
+    if (s.linkTelegramBusy) return;
+    const isTelegramMiniAppAttempt = telegramSdk.hasLaunchParams();
+    if (isTelegramMiniAppAttempt) {
+      await telegramSdk.ensureForAction();
+    }
+    const initData = getTelegramMiniAppInitData();
+    if (initData) {
+      await linkTelegramAccountWithPayload({ init_data: initData });
+      return;
+    }
+    if (!telegramOAuthClientId) {
+      showToast(t("wa_auth_telegram_not_configured"));
+      return;
+    }
+    state.update((s) => ({ ...s, linkTelegramBusy: true }));
+    window.location.assign(buildTelegramOAuthStartUrl("link", getTg()));
+  }
+
+  async function updateAccountLanguage(nextValue) {
+    const s = get(state);
+    const normalize = typeof normalizeLangCode === "function" ? normalizeLangCode : (v) => v;
+    const language = normalize(nextValue);
+    if (!language || s.languageBusy || language === currentLang()) return;
+    state.update((s) => ({ ...s, languageBusy: true }));
+    try {
+      const response = await api("/account/language", {
+        method: "POST",
+        body: JSON.stringify({ language }),
+      });
+      if (!response?.ok) throw response;
+      if (typeof updateLocalData === "function") {
+        updateLocalData(normalize(response.language || language));
+      }
+      await loadData();
+    } catch {
+      showToast(t("wa_settings_language_update_failed"));
+    } finally {
+      state.update((s) => ({ ...s, languageBusy: false }));
+    }
+  }
+
+  async function logout() {
+    markManualLogout();
+    clearToken();
+    try {
+      await publicApi("/auth/logout", { keepalive: true });
+    } catch (_error) {
+      void _error;
+    }
+    showLogin();
+  }
+
+  return {
+    subscribe: state.subscribe,
+    set: state.set,
+    update: state.update,
+    openLinkEmailDialog,
+    closeLinkEmailDialog,
+    requestLinkEmailCode,
+    verifyLinkEmailCode,
+    linkTelegramAccount,
+    updateAccountLanguage,
+    logout,
+    clearLinkEmailResendTimer: clearCooldownTimer,
+  };
+}
@@ -0,0 +1,287 @@
+import { writable, get } from "svelte/store";
+import {
+  readReferralParam,
+  clearAuthQuery,
+  buildTelegramOAuthStartUrl,
+  emailError,
+} from "../authHelpers.js";
+
+export function createAuthStore({
+  publicApi,
+  setToken,
+  loadData,
+  telegramSdk,
+  getTg,
+  t,
+  currentLang,
+}) {
+  const state = writable({
+    authStatus: "",
+    authIsError: false,
+    authBusy: false,
+    telegramLoginBusy: false,
+    telegramLoginAttemptId: 0,
+    loginEmailFieldError: "",
+    loginEmailTooltipOpen: false,
+    authResendCooldown: 0,
+    email: "",
+    pendingEmail: "",
+    emailCode: "",
+  });
+
+  let authResendTimer = null;
+  let telegramLoginWatchdogTimer = null;
+
+  function setAuthStatus(message, isError = false) {
+    state.update((s) => ({ ...s, authStatus: message, authIsError: isError }));
+  }
+
+  function clearCooldownTimer() {
+    if (authResendTimer) {
+      window.clearInterval(authResendTimer);
+      authResendTimer = null;
+    }
+  }
+
+  function startCooldownTimer(seconds = 60) {
+    clearCooldownTimer();
+    state.update((s) => ({ ...s, authResendCooldown: Math.max(0, Number(seconds || 60)) }));
+    authResendTimer = window.setInterval(() => {
+      const { authResendCooldown } = get(state);
+      if (authResendCooldown <= 1) {
+        state.update((s) => ({ ...s, authResendCooldown: 0 }));
+        clearCooldownTimer();
+        return;
+      }
+      state.update((s) => ({ ...s, authResendCooldown: authResendCooldown - 1 }));
+    }, 1000);
+  }
+
+  function startTelegramLoginWatchdog() {
+    const TELEGRAM_MINI_APP_AUTH_TIMEOUT_MS = 6000;
+    stopTelegramLoginWatchdog();
+    state.update((s) => ({ ...s, telegramLoginAttemptId: s.telegramLoginAttemptId + 1 }));
+    const { telegramLoginAttemptId } = get(state);
+
+    telegramLoginWatchdogTimer = window.setTimeout(() => {
+      if (get(state).telegramLoginAttemptId !== telegramLoginAttemptId) return;
+      telegramLoginWatchdogTimer = null;
+      state.update((s) => ({ ...s, telegramLoginBusy: false, authBusy: false }));
+      setAuthStatus(t("wa_auth_telegram_timeout"), true);
+    }, TELEGRAM_MINI_APP_AUTH_TIMEOUT_MS);
+
+    return telegramLoginAttemptId;
+  }
+
+  function stopTelegramLoginWatchdog(attemptId = null) {
+    if (attemptId !== null && attemptId !== get(state).telegramLoginAttemptId) return;
+    if (telegramLoginWatchdogTimer) {
+      window.clearTimeout(telegramLoginWatchdogTimer);
+      telegramLoginWatchdogTimer = null;
+    }
+  }
+
+  function isActiveTelegramLoginAttempt(attemptId) {
+    const s = get(state);
+    return attemptId === s.telegramLoginAttemptId && s.telegramLoginBusy;
+  }
+
+  async function finalizeMagicLogin(loginToken) {
+    const s = get(state);
+    if (s.authBusy) return false;
+    state.update((s) => ({ ...s, authBusy: true }));
+    setAuthStatus(t("wa_auth_checking_login"));
+    try {
+      const payload = { token: loginToken };
+      const referralParam = readReferralParam(getTg());
+      if (referralParam) payload.referral_code = referralParam;
+      const response = await publicApi("/auth/email/magic", payload);
+      if (response.ok && response.csrf_token) {
+        setToken("", response.csrf_token);
+        clearAuthQuery();
+        await loadData();
+        return true;
+      }
+      setAuthStatus(t("wa_auth_login_confirm_failed"), true);
+    } catch {
+      setAuthStatus(t("wa_auth_login_confirm_failed"), true);
+    } finally {
+      state.update((s) => ({ ...s, authBusy: false }));
+    }
+    return false;
+  }
+
+  async function finalizeTelegramAuth(authData, source = "auth_data", options = {}) {
+    const s = get(state);
+    if (s.authBusy) return false;
+    state.update((s) => ({ ...s, authBusy: true }));
+    setAuthStatus(t("wa_auth_checking_telegram"));
+    try {
+      const payload =
+        source === "init_data"
+          ? { init_data: authData }
+          : source === "id_token"
+            ? { id_token: authData.id_token, nonce: authData.nonce }
+            : { auth_data: authData };
+      const referralParam = readReferralParam(getTg());
+      if (referralParam) payload.referral_code = referralParam;
+      const response = await publicApi("/auth/token", payload, { signal: options.signal });
+      if (response.ok && response.csrf_token) {
+        setToken("", response.csrf_token);
+        clearAuthQuery();
+        setAuthStatus("");
+        await loadData();
+        return true;
+      }
+      setAuthStatus(
+        response.error === "banned"
+          ? t("wa_auth_access_denied")
+          : t("wa_auth_telegram_not_confirmed"),
+        true
+      );
+    } catch (error) {
+      setAuthStatus(
+        error?.name === "AbortError"
+          ? t("wa_auth_telegram_timeout")
+          : t("wa_auth_telegram_unavailable"),
+        true
+      );
+    } finally {
+      state.update((s) => ({ ...s, authBusy: false }));
+    }
+    return false;
+  }
+
+  async function requestEmailCode(changeScreen) {
+    const s = get(state);
+    if (s.authResendCooldown > 0 && s.pendingEmail) return;
+    const normalized = s.email.trim().toLowerCase();
+    if (!normalized || !normalized.includes("@")) {
+      state.update((s) => ({
+        ...s,
+        loginEmailFieldError: t("wa_auth_invalid_email"),
+        loginEmailTooltipOpen: true,
+      }));
+      return;
+    }
+    state.update((s) => ({
+      ...s,
+      loginEmailFieldError: "",
+      loginEmailTooltipOpen: false,
+      authBusy: true,
+    }));
+    setAuthStatus(t("wa_auth_sending_code"));
+    try {
+      const payload = { email: normalized, language: currentLang() };
+      const referralParam = readReferralParam(getTg());
+      if (referralParam) payload.referral_code = referralParam;
+      const response = await publicApi("/auth/email/request", payload);
+      if (!response.ok) throw response;
+      state.update((s) => ({ ...s, pendingEmail: normalized, emailCode: "" }));
+      changeScreen("code");
+      setAuthStatus("");
+      startCooldownTimer(60);
+    } catch (error) {
+      setAuthStatus(emailError(error, t("wa_auth_send_code_failed"), t), true);
+    } finally {
+      state.update((s) => ({ ...s, authBusy: false }));
+    }
+  }
+
+  async function verifyEmailCode() {
+    const s = get(state);
+    const code = s.emailCode.replace(/\\D/g, "").slice(0, 6);
+    if (code.length !== 6) {
+      setAuthStatus(t("wa_auth_enter_code_6digits"), true);
+      return;
+    }
+    state.update((s) => ({ ...s, authBusy: true }));
+    setAuthStatus(t("wa_auth_checking_code"));
+    try {
+      const payload = { email: s.pendingEmail, code };
+      const referralParam = readReferralParam(getTg());
+      if (referralParam) payload.referral_code = referralParam;
+      const response = await publicApi("/auth/email/verify", payload);
+      if (!response.ok || !response.csrf_token) throw response;
+      setToken("", response.csrf_token);
+      await loadData();
+      setAuthStatus("");
+    } catch (error) {
+      setAuthStatus(emailError(error, t("wa_auth_invalid_code"), t), true);
+    } finally {
+      state.update((s) => ({ ...s, authBusy: false }));
+    }
+  }
+
+  async function openTelegramLogin(telegramOAuthClientId, getTelegramMiniAppInitData) {
+    const s = get(state);
+    if (s.authBusy || s.telegramLoginBusy) return;
+    setAuthStatus("");
+
+    const isTelegramMiniAppAttempt = telegramSdk.hasLaunchParams();
+    if (!isTelegramMiniAppAttempt && telegramOAuthClientId) {
+      state.update((s) => ({ ...s, telegramLoginBusy: true }));
+      window.location.assign(buildTelegramOAuthStartUrl("login", getTg()));
+      window.setTimeout(() => {
+        state.update((s) => ({ ...s, telegramLoginBusy: false }));
+      }, 1500);
+      return;
+    }
+
+    state.update((s) => ({ ...s, telegramLoginBusy: true }));
+    const attemptId = startTelegramLoginWatchdog();
+    const loginTimeout = telegramSdk.createMiniAppAuthTimeout();
+    try {
+      await Promise.race([
+        (async () => {
+          await telegramSdk.ensureForAction();
+          if (!isActiveTelegramLoginAttempt(attemptId)) return;
+          const initData = getTelegramMiniAppInitData();
+          if (initData) {
+            await finalizeTelegramAuth(initData, "init_data", { signal: loginTimeout.signal });
+            return;
+          }
+
+          if (!telegramOAuthClientId) {
+            setAuthStatus(t("wa_auth_telegram_not_configured"), true);
+            return;
+          }
+
+          window.location.assign(buildTelegramOAuthStartUrl("login", getTg()));
+        })(),
+        loginTimeout.promise,
+      ]);
+    } catch (error) {
+      if (!isActiveTelegramLoginAttempt(attemptId)) return;
+      if (error?.name === "AbortError") {
+        setAuthStatus(t("wa_auth_telegram_timeout"), true);
+      } else {
+        setAuthStatus(t("wa_auth_telegram_unavailable"), true);
+      }
+    } finally {
+      loginTimeout.clear();
+      if (loginTimeout.timedOut) {
+        setAuthStatus(t("wa_auth_telegram_timeout"), true);
+        state.update((s) => ({ ...s, authBusy: false }));
+      }
+      if (isActiveTelegramLoginAttempt(attemptId)) {
+        stopTelegramLoginWatchdog(attemptId);
+        state.update((s) => ({ ...s, telegramLoginBusy: false }));
+      }
+    }
+  }
+
+  return {
+    subscribe: state.subscribe,
+    set: state.set,
+    update: state.update,
+    finalizeMagicLogin,
+    finalizeTelegramAuth,
+    requestEmailCode,
+    verifyEmailCode,
+    openTelegramLogin,
+    clearCooldownTimer,
+    stopTelegramLoginWatchdog,
+    setAuthStatus,
+  };
+}
@@ -0,0 +1,401 @@
+import { writable, get } from "svelte/store";
+
+export function createBillingStore({ billing, loadData, t, showToast, openExternalLink, tg }) {
+  const state = writable({
+    paymentModalOpen: false,
+    paymentStep: "tariff",
+    selectedTariffKey: "",
+    selectedPlan: null,
+    selectedMethod: "",
+    topupModalOpen: false,
+    topupKind: "regular",
+    deviceTopupModalOpen: false,
+    changeModalOpen: false,
+    topupOptions: null,
+    deviceTopupOptions: null,
+    changeOptions: null,
+    selectedTopupPlan: null,
+    selectedDeviceTopupPlan: null,
+    selectedChangeTarget: null,
+    selectedChangeAction: null,
+    changeConfirmOpen: false,
+    tariffActionBusy: false,
+    payBusy: false,
+  });
+
+  let topupOptionsRequestId = 0;
+
+  function openPaymentModal(
+    tariffMode,
+    singleTariffMode,
+    tariffCatalog,
+    subscription,
+    plans,
+    defaultMethod = ""
+  ) {
+    state.update((s) => {
+      let step;
+      let plan = s.selectedPlan;
+      let tariffKey = s.selectedTariffKey;
+
+      if (tariffMode) {
+        if (singleTariffMode && tariffCatalog[0]?.key) {
+          tariffKey = tariffCatalog[0].key;
+          plan = plans.find((p) => p?.tariff_key === tariffKey) || null;
+          step = "checkout";
+        } else if (
+          subscription?.active &&
+          subscription?.tariff_key &&
+          tariffCatalog.some((t) => t.key === subscription.tariff_key)
+        ) {
+          tariffKey = subscription.tariff_key;
+          plan = plans.find((p) => p?.tariff_key === tariffKey) || null;
+          step = "checkout";
+        } else {
+          step = "tariff";
+          tariffKey = "";
+          plan = null;
+        }
+      } else {
+        step = "checkout";
+      }
+      return {
+        ...s,
+        paymentModalOpen: true,
+        paymentStep: step,
+        selectedTariffKey: tariffKey,
+        selectedPlan: plan,
+        selectedMethod: s.selectedMethod || defaultMethod,
+      };
+    });
+  }
+
+  function closePaymentModal() {
+    state.update((s) => ({ ...s, paymentModalOpen: false }));
+  }
+
+  function selectTariff(tariff, plans = []) {
+    const key = String(tariff?.key || "").trim();
+    if (!key) return;
+    state.update((s) => ({
+      ...s,
+      selectedTariffKey: key,
+      selectedPlan: plans.find((plan) => plan?.tariff_key === key) || null,
+    }));
+  }
+
+  function continueWithSelectedTariff(selectedTariffPlans = []) {
+    state.update((s) => {
+      if (!s.selectedTariffKey) return s;
+      return {
+        ...s,
+        selectedPlan: s.selectedPlan || selectedTariffPlans[0] || null,
+        paymentStep: "checkout",
+      };
+    });
+  }
+
+  function backToTariffList(subscription, tariffCatalog = []) {
+    if (
+      subscription?.active &&
+      subscription?.tariff_key &&
+      tariffCatalog.some((t) => t.key === subscription.tariff_key)
+    ) {
+      return;
+    }
+    state.update((s) => ({ ...s, paymentStep: "tariff" }));
+  }
+
+  function openTopupModal(kind = "regular", defaultMethod = "") {
+    const normalizedKind = kind === "premium" ? "premium" : "regular";
+    state.update((s) => ({
+      ...s,
+      topupKind: normalizedKind,
+      topupModalOpen: true,
+      topupOptions: s.topupOptions?.topup_kind === normalizedKind ? s.topupOptions : null,
+      selectedTopupPlan: s.topupOptions?.topup_kind === normalizedKind ? s.selectedTopupPlan : null,
+      selectedMethod: s.selectedMethod || defaultMethod,
+    }));
+    loadTopupOptions(normalizedKind);
+  }
+
+  function closeTopupModal() {
+    state.update((s) => ({ ...s, topupModalOpen: false }));
+  }
+
+  function openDeviceTopupModal(defaultMethod = "") {
+    state.update((s) => ({
+      ...s,
+      deviceTopupModalOpen: true,
+      selectedMethod: s.selectedMethod || defaultMethod,
+    }));
+    loadDeviceTopupOptions();
+  }
+
+  function closeDeviceTopupModal() {
+    state.update((s) => ({ ...s, deviceTopupModalOpen: false }));
+  }
+
+  function openTariffChangeModal(defaultMethod = "") {
+    state.update((s) => ({
+      ...s,
+      changeModalOpen: true,
+      selectedMethod: s.selectedMethod || defaultMethod,
+    }));
+    loadTariffChangeOptions();
+  }
+
+  function closeTariffChangeModal() {
+    state.update((s) => ({ ...s, changeModalOpen: false }));
+  }
+
+  function openTariffChangeConfirm() {
+    const s = get(state);
+    if (!s.selectedChangeTarget || !s.selectedChangeAction) return;
+    state.update((s) => ({ ...s, changeConfirmOpen: true }));
+  }
+
+  function closeTariffChangeConfirm() {
+    state.update((s) => ({ ...s, changeConfirmOpen: false }));
+  }
+
+  function openTelegramInvoice(url) {
+    if (!url) return;
+    if (tg?.openInvoice) {
+      tg.openInvoice(url, (status) => {
+        if (status === "paid") {
+          showToast(t("wa_payment_success", {}, "Payment successful"));
+          loadData();
+        } else if (status === "failed") {
+          showToast(t("wa_payment_create_failed"));
+        }
+      });
+      return;
+    }
+    openExternalLink(url);
+  }
+
+  async function createPayment() {
+    const s = get(state);
+    if (!s.selectedPlan || !s.selectedMethod || s.payBusy) return;
+    state.update((s) => ({ ...s, payBusy: true }));
+    try {
+      const response = await billing.postPayment(
+        billing.planPaymentBody(s.selectedPlan, s.selectedMethod)
+      );
+      if (!response.ok) throw response;
+      showToast(t("wa_payment_created"));
+      if (response.action === "open_invoice") {
+        if (!response.payment_url) throw response;
+        openTelegramInvoice(response.payment_url);
+      } else if (response.action === "invoice_sent") {
+        state.update((s) => ({ ...s, paymentModalOpen: false }));
+        return;
+      } else {
+        if (!response.payment_url) throw response;
+        openExternalLink(response.payment_url);
+      }
+      state.update((s) => ({ ...s, paymentModalOpen: false }));
+    } catch (error) {
+      showToast(error?.message || t("wa_payment_create_failed"));
+    } finally {
+      state.update((s) => ({ ...s, payBusy: false }));
+    }
+  }
+
+  async function loadTopupOptions(kind) {
+    const s = get(state);
+    if (s.topupOptions?.topup_kind === kind) return;
+    const requestId = ++topupOptionsRequestId;
+    state.update((s) => ({
+      ...s,
+      tariffActionBusy: true,
+      topupOptions: null,
+      selectedTopupPlan: null,
+    }));
+    try {
+      const response = await billing.fetchTopupOptions(kind);
+      if (requestId !== topupOptionsRequestId || kind !== get(state).topupKind) return;
+      if (!response?.ok) throw response;
+      state.update((s) => ({
+        ...s,
+        topupOptions: response,
+        selectedTopupPlan: response.plans?.[0] || null,
+      }));
+    } catch (error) {
+      if (requestId !== topupOptionsRequestId || kind !== get(state).topupKind) return;
+      showToast(error?.message || t("wa_tariff_options_failed"));
+      state.update((s) => ({ ...s, topupModalOpen: false }));
+    } finally {
+      if (requestId === topupOptionsRequestId) {
+        state.update((s) => ({ ...s, tariffActionBusy: false }));
+      }
+    }
+  }
+
+  async function createTopupPayment() {
+    const s = get(state);
+    if (!s.selectedTopupPlan || !s.selectedMethod || s.payBusy) return;
+    state.update((s) => ({ ...s, payBusy: true }));
+    try {
+      const response = await billing.postPayment(
+        billing.topupPaymentBody(s.selectedTopupPlan, s.selectedMethod, s.topupOptions?.tariff_key)
+      );
+      if (!response.ok || !response.payment_url) throw response;
+      showToast(t("wa_payment_created"));
+      openExternalLink(response.payment_url);
+      state.update((s) => ({ ...s, topupModalOpen: false }));
+    } catch (error) {
+      showToast(error?.message || t("wa_payment_create_failed"));
+    } finally {
+      state.update((s) => ({ ...s, payBusy: false }));
+    }
+  }
+
+  async function loadTariffChangeOptions() {
+    const s = get(state);
+    if (s.changeOptions || s.tariffActionBusy) return;
+    state.update((s) => ({ ...s, tariffActionBusy: true }));
+    try {
+      const response = await billing.fetchTariffChangeOptions();
+      if (!response?.ok) throw response;
+      state.update((s) => ({
+        ...s,
+        changeOptions: response,
+        selectedChangeTarget: response.targets?.[0] || null,
+        selectedChangeAction: response.targets?.[0]?.actions?.[0] || null,
+      }));
+    } catch (error) {
+      showToast(error?.message || t("wa_tariff_options_failed"));
+      state.update((s) => ({ ...s, changeModalOpen: false }));
+    } finally {
+      state.update((s) => ({ ...s, tariffActionBusy: false }));
+    }
+  }
+
+  async function applyTariffChange() {
+    const s = get(state);
+    if (!s.selectedChangeTarget || !s.selectedChangeAction || s.tariffActionBusy) return;
+    if (s.selectedChangeAction.kind === "payment") {
+      await createTariffChangePayment();
+      return;
+    }
+    state.update((s) => ({ ...s, tariffActionBusy: true }));
+    try {
+      const response = await billing.postTariffChange({
+        tariff_key: s.selectedChangeTarget.tariff_key,
+        mode: s.selectedChangeAction.mode,
+      });
+      if (!response?.ok) throw response;
+      showToast(t("wa_tariff_change_applied"));
+      state.update((s) => ({
+        ...s,
+        changeConfirmOpen: false,
+        changeModalOpen: false,
+        changeOptions: null,
+      }));
+      await loadData();
+    } catch (error) {
+      showToast(error?.message || t("wa_tariff_change_failed"));
+    } finally {
+      state.update((s) => ({ ...s, tariffActionBusy: false }));
+    }
+  }
+
+  async function createTariffChangePayment() {
+    const s = get(state);
+    if (!s.selectedChangeTarget || !s.selectedChangeAction || !s.selectedMethod || s.payBusy)
+      return;
+    state.update((s) => ({ ...s, payBusy: true }));
+    try {
+      const body = billing.changePaymentBody(
+        s.selectedChangeAction,
+        s.selectedChangeTarget,
+        s.selectedMethod
+      );
+      const response =
+        s.selectedChangeAction.mode === "buy_package" ||
+        s.selectedChangeAction.mode === "buy_period"
+          ? await billing.postPayment(body)
+          : await billing.postTariffChangePayment(body);
+      if (!response.ok || !response.payment_url) throw response;
+      showToast(t("wa_payment_created"));
+      openExternalLink(response.payment_url);
+      state.update((s) => ({ ...s, changeConfirmOpen: false, changeModalOpen: false }));
+    } catch (error) {
+      showToast(error?.message || t("wa_payment_create_failed"));
+    } finally {
+      state.update((s) => ({ ...s, payBusy: false }));
+    }
+  }
+
+  async function loadDeviceTopupOptions() {
+    const s = get(state);
+    if (s.deviceTopupOptions || s.tariffActionBusy) return;
+    state.update((s) => ({ ...s, tariffActionBusy: true }));
+    try {
+      const response = await billing.fetchDeviceTopupOptions();
+      if (!response?.ok) throw response;
+      state.update((s) => ({
+        ...s,
+        deviceTopupOptions: response,
+        selectedDeviceTopupPlan: response.plans?.[0] || null,
+      }));
+    } catch (error) {
+      showToast(error?.message || t("wa_device_topup_options_failed"));
+      state.update((s) => ({ ...s, deviceTopupModalOpen: false }));
+    } finally {
+      state.update((s) => ({ ...s, tariffActionBusy: false }));
+    }
+  }
+
+  async function createDeviceTopupPayment() {
+    const s = get(state);
+    if (!s.selectedDeviceTopupPlan || !s.selectedMethod || s.payBusy) return;
+    state.update((s) => ({ ...s, payBusy: true }));
+    try {
+      const response = await billing.postPayment(
+        billing.deviceTopupPaymentBody(
+          s.selectedDeviceTopupPlan,
+          s.selectedMethod,
+          s.deviceTopupOptions?.tariff_key
+        )
+      );
+      if (!response.ok || !response.payment_url) throw response;
+      showToast(t("wa_payment_created"));
+      openExternalLink(response.payment_url);
+      state.update((s) => ({ ...s, deviceTopupModalOpen: false }));
+    } catch (error) {
+      showToast(error?.message || t("wa_payment_create_failed"));
+    } finally {
+      state.update((s) => ({ ...s, payBusy: false }));
+    }
+  }
+
+  return {
+    subscribe: state.subscribe,
+    set: state.set,
+    update: state.update,
+    openPaymentModal,
+    closePaymentModal,
+    selectTariff,
+    continueWithSelectedTariff,
+    backToTariffList,
+    createPayment,
+    openTopupModal,
+    closeTopupModal,
+    loadTopupOptions,
+    createTopupPayment,
+    openTariffChangeModal,
+    closeTariffChangeModal,
+    openTariffChangeConfirm,
+    closeTariffChangeConfirm,
+    loadTariffChangeOptions,
+    applyTariffChange,
+    createTariffChangePayment,
+    openDeviceTopupModal,
+    closeDeviceTopupModal,
+    loadDeviceTopupOptions,
+    createDeviceTopupPayment,
+  };
+}
@@ -0,0 +1,80 @@
+import { writable, get } from "svelte/store";
+
+export function createDevicesStore({ api, t, showToast }) {
+  const state = writable({
+    devicesData: null,
+    devicesLoaded: false,
+    devicesBusy: false,
+    devicesStatus: "",
+    devicesIsError: false,
+    deviceConfirmOpen: false,
+    deviceToDisconnect: null,
+    deviceDisconnectBusy: false,
+  });
+
+  async function loadDevices(devicesEnabled, force = false) {
+    const s = get(state);
+    if (!devicesEnabled || s.devicesBusy || (s.devicesLoaded && !force)) return;
+    state.update((s) => ({ ...s, devicesBusy: true, devicesStatus: "", devicesIsError: false }));
+    try {
+      const response = await api("/devices");
+      if (!response?.ok) throw response;
+      state.update((s) => ({ ...s, devicesData: response, devicesLoaded: true }));
+    } catch (error) {
+      state.update((s) => ({
+        ...s,
+        devicesStatus: error?.message || t("wa_devices_load_failed"),
+        devicesIsError: true,
+        devicesLoaded: true,
+      }));
+    } finally {
+      state.update((s) => ({ ...s, devicesBusy: false }));
+    }
+  }
+
+  function openDeviceDisconnectDialog(device) {
+    state.update((s) => ({ ...s, deviceToDisconnect: device, deviceConfirmOpen: true }));
+  }
+
+  function closeDeviceDisconnectDialog() {
+    const s = get(state);
+    if (s.deviceDisconnectBusy) return;
+    state.update((s) => ({ ...s, deviceConfirmOpen: false, deviceToDisconnect: null }));
+  }
+
+  async function disconnectDevice(devicesEnabled) {
+    const s = get(state);
+    const token = String(s.deviceToDisconnect?.token || "").trim();
+    if (!token || s.deviceDisconnectBusy) return;
+    state.update((s) => ({ ...s, deviceDisconnectBusy: true }));
+    try {
+      const response = await api("/devices/disconnect", {
+        method: "POST",
+        body: JSON.stringify({ token }),
+      });
+      if (!response?.ok) throw response;
+      showToast(t("wa_device_disconnected"));
+      state.update((s) => ({
+        ...s,
+        deviceConfirmOpen: false,
+        deviceToDisconnect: null,
+        devicesLoaded: false,
+      }));
+      await loadDevices(devicesEnabled, true);
+    } catch (error) {
+      showToast(error?.message || t("wa_device_disconnect_failed"));
+    } finally {
+      state.update((s) => ({ ...s, deviceDisconnectBusy: false }));
+    }
+  }
+
+  return {
+    subscribe: state.subscribe,
+    set: state.set,
+    update: state.update,
+    loadDevices,
+    openDeviceDisconnectDialog,
+    closeDeviceDisconnectDialog,
+    disconnectDevice,
+  };
+}