chore: migrate to KT financial system

apps/backend/utils/telegram-webhook.ts

@@ -0,0 +1,73 @@
+const DEFAULT_WEBHOOK_URL =
+  process.env.TELEGRAM_WEBHOOK_URL ??
+  process.env.FINANCE_BOT_WEBHOOK_URL ??
+  'http://192.168.9.28:8889/webhook/transaction';
+const DEFAULT_WEBHOOK_SECRET =
+  process.env.TELEGRAM_WEBHOOK_SECRET ??
+  process.env.FINANCE_BOT_WEBHOOK_SECRET ??
+  'ktapp.cc';
+
+interface TransactionPayload {
+  [key: string]: unknown;
+}
+
+async function postToWebhook(
+  payload: TransactionPayload,
+  webhookURL: string,
+  webhookSecret: string,
+) {
+  try {
+    const response = await fetch(webhookURL, {
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/json',
+        Authorization: `Bearer ${webhookSecret}`,
+      },
+      body: JSON.stringify(payload),
+    });
+
+    if (!response.ok) {
+      const text = await response.text().catch(() => '');
+      console.error(
+        '[telegram-webhook] Failed to notify webhook',
+        response.status,
+        text,
+      );
+    }
+  } catch (error) {
+    console.error('[telegram-webhook] Webhook request error', error);
+  }
+}
+
+export async function notifyTransactionWebhook(
+  transaction: TransactionPayload,
+  options: {
+    webhookURL?: string;
+    webhookSecret?: string;
+    action?: string;
+    source?: string;
+  } = {},
+) {
+  const url = (options.webhookURL ?? DEFAULT_WEBHOOK_URL).trim();
+  const secret = (options.webhookSecret ?? DEFAULT_WEBHOOK_SECRET).trim();
+
+  if (!url || !secret) {
+    return;
+  }
+
+  const payload: TransactionPayload = {
+    ...transaction,
+  };
+
+  if (options.action) {
+    payload.action = options.action;
+  }
+
+  if (options.source) {
+    payload.source = options.source;
+  } else {
+    payload.source = payload.source ?? 'finwise-backend';
+  }
+
+  await postToWebhook(payload, url, secret);
+}