feat: add tagging alerts and sorting on tags

src/ctask/ctask.service.ts

@@ -37,6 +37,7 @@ export async function createTask(
         content: input.note,
       },
       task.pid,
+      "ctasks",
       user
     );
   }
@@ -80,6 +81,25 @@ export async function listTasks(
   const sortObj = getSortObject(params, taskFields);
   const filterObj = getFilterObject(params) || [];
 
+  let taggedFilter = [];
+  if (sortObj.taggedUsers) {
+    taggedFilter = [
+      {
+        $addFields: {
+          taggedUsers: {
+            $filter: {
+              input: "$taggedUsers",
+              as: "user",
+              cond: { $eq: ["$$user.userId", user.userId] },
+            },
+          },
+        },
+      },
+      { $match: { "taggedUsers.0": { $exists: true } } },
+      { $sort: { "taggedUsers.taggedAt": sortObj.taggedUsers } },
+    ];
+  }
+
   const taskList = await taskModel.aggregate([
     {
       $match: {
@@ -90,6 +110,7 @@ export async function listTasks(
         ],
       },
     },
+    ...taggedFilter,
     {
       $lookup: {
         from: "users",