W1-W3 实现企业微信个人应用消息通知

server/src/services/notifications/channels.js

@@ -39,7 +39,40 @@ function buildNotificationMessage(channel, payload) {
   };
 }
 
-async function sendInstantMessageByChannel({ config, channel, payload }) {
+function uniqStrings(values) {
+  return Array.from(
+    new Set(
+      (values ?? [])
+        .map((value) => String(value ?? '').trim())
+        .filter(Boolean),
+    ),
+  );
+}
+
+async function resolveRecipientExternalUserIds({ prisma, payload }) {
+  const explicitExternalUserIds = uniqStrings(payload?.recipientExternalUserIds);
+  if (explicitExternalUserIds.length) {
+    return explicitExternalUserIds;
+  }
+
+  const employeeIds = uniqStrings(payload?.recipientEmployeeIds);
+  if (!prisma?.wecomIdentityBinding?.findMany || !employeeIds.length) {
+    return [];
+  }
+
+  const bindings = await prisma.wecomIdentityBinding.findMany({
+    where: {
+      employee_id: { in: employeeIds },
+    },
+    select: {
+      external_user_id: true,
+    },
+  });
+
+  return uniqStrings(bindings.map((binding) => binding.external_user_id));
+}
+
+async function sendInstantMessageByChannel({ config, channel, payload, prisma }) {
   const normalizedChannelType = normalizeChannelType(channel?.channel_type ?? payload?.channelType ?? '');
 
   if (!config?.imNotifierEnabled) {
@@ -91,11 +124,24 @@ async function sendInstantMessageByChannel({ config, channel, payload }) {
   }
 
   const message = buildNotificationMessage(channel, payload);
-  return sendWecomMessage({ config, channel, message });
+  const configJson = channel?.config_json && typeof channel.config_json === 'object' ? channel.config_json : {};
+  const mode = String(configJson.mode ?? 'mock').trim() || 'mock';
+  const recipientExternalUserIds =
+    mode === 'wecom_app_message'
+      ? await resolveRecipientExternalUserIds({ prisma, payload })
+      : [];
+
+  return sendWecomMessage({
+    config,
+    channel,
+    message,
+    recipientExternalUserIds,
+  });
 }
 
 module.exports = {
   applyTemplate,
   buildNotificationMessage,
+  resolveRecipientExternalUserIds,
   sendInstantMessageByChannel,
 };