dashboar changes

controller/Dashboard.js

@@ -0,0 +1,77 @@
+const postgre = require('../database/postgre');
+
+const analytics = async (req, res) => {
+  try {
+    const query = `
+      SELECT
+        '24h' AS period,
+        COUNT(DISTINCT session_id) AS sessions,
+        COUNT(*) FILTER (WHERE status = 1) AS chats,
+        COUNT(DISTINCT user_id) AS users,
+        COUNT(*) AS queries
+      FROM useraskquestion
+      WHERE created >= NOW() - INTERVAL '24 hours'
+
+      UNION ALL
+
+      SELECT
+        '7d',
+        COUNT(DISTINCT session_id),
+        COUNT(*) FILTER (WHERE status = 1),
+        COUNT(DISTINCT user_id),
+        COUNT(*)
+      FROM useraskquestion
+      WHERE created >= NOW() - INTERVAL '7 days'
+
+      UNION ALL
+
+      SELECT
+        '30d',
+        COUNT(DISTINCT session_id),
+        COUNT(*) FILTER (WHERE status = 1),
+        COUNT(DISTINCT user_id),
+        COUNT(*)
+      FROM useraskquestion
+      WHERE created >= NOW() - INTERVAL '30 days'
+
+      UNION ALL
+
+      SELECT
+        'all',
+        COUNT(DISTINCT session_id),
+        COUNT(*) FILTER (WHERE status = 1),
+        COUNT(DISTINCT user_id),
+        COUNT(*)
+      FROM useraskquestion;
+    `;
+
+    const result = await postgre.query(query);
+
+    const response = {};
+
+    result.rows.forEach(row => {
+      response[row.period] = {
+        sessions: Number(row.sessions),
+        chats: Number(row.chats),
+        users: Number(row.users),
+        queries: Number(row.queries),
+      };
+    });
+
+    return res.status(200).json({
+      success: true,
+      data: response,
+    });
+
+  } catch (error) {
+    console.error("Analytics Error:", error);
+    return res.status(500).json({
+      success: false,
+      message: error.message,
+    });
+  }
+};
+
+module.exports = {
+  analytics,
+};