added node backend

backend/routers/getAll.js

@@ -0,0 +1,60 @@
+import express from "express";
+import connection from "../db.js";
+
+const router = express.Router();
+
+router.get("/getall", async (req, res) => {
+  let sql =
+    "SELECT u.f_name,u.l_name,u.mail,p.name,t.time,t.date,t.user \
+    FROM Timelog t \
+    INNER JOIN Project p ON p.id=t.project \
+    INNER JOIN User u ON u.id=t.user ";
+  const where = "WHERE t.date BETWEEN ? AND ? ";
+  const order = "ORDER BY ?? ";
+  const offsetSql = "LIMIT 10 OFFSET ?;";
+  let flag = 0;
+  // construct the sql statement based on incoming request
+  if (req.query.from || req.query.to) {
+    sql = sql + where;
+    flag += 1;
+  }
+  if (req.query.sortby) {
+    sql = sql + order;
+    flag += 2;
+  }
+  sql = sql + offsetSql;
+
+  let results;
+  let fields;
+  switch (flag) {
+    case 0:
+      [results, fields] = await connection.query(sql, [
+        parseInt(req.query.offset),
+      ]);
+      break;
+    case 1:
+      [results, fields] = await connection.query(sql, [
+        req.query.from,
+        req.query.to,
+        parseInt(req.query.offset),
+      ]);
+      break;
+    case 2:
+      [results, fields] = await connection.query(sql, [
+        req.query.sortby,
+        parseInt(req.query.offset),
+      ]);
+      break;
+    case 3:
+      [results, fields] = await connection.query(sql, [
+        req.query.from,
+        req.query.to,
+        req.query.sortby,
+        parseInt(req.query.offset),
+      ]);
+      break;
+  }
+  res.json(results);
+});
+
+export default router;

backend/routers/getTopTen.js

@@ -0,0 +1,35 @@
+import express from "express";
+import connection from "../db.js";
+
+const router = express.Router();
+
+router.get("/gettopten", async (req, res) => {
+  let from = "2020-01-01";
+  let to = "2029-01-01";
+  let filterBy = "user";
+  if (req.query.from) from = req.query.from;
+  if (req.query.to) to = req.query.to;
+  if (req.query.filterBy) filterBy = req.query.filterBy;
+  let results, fields;
+  let filterBySql = filterBy === "user" ? "t.user" : "t.project";
+  try {
+    [results, fields] = await connection.query(
+      "SELECT t.user,t.date,t.project,u.f_name,u.l_name,p.name,SUM(t.time) as total_time \
+    FROM Timelog t \
+    INNER JOIN Project p ON p.id=t.project \
+    INNER JOIN User u ON u.id=t.user \
+    WHERE t.date BETWEEN ? AND ? \
+    GROUP BY ?? \
+    ORDER BY total_time DESC\
+    LIMIT 10;",
+      [from, to, filterBySql],
+    );
+  } catch (err) {
+    console.log(err);
+    res.status(400).json({ message: "Error" });
+  }
+
+  res.json(results);
+});
+
+export default router;

backend/routers/getUser.js

@@ -0,0 +1,42 @@
+import express from "express";
+import connection from "../db.js";
+
+const router = express.Router();
+
+router.get("/getUser", async (req, res) => {
+  const userId = req.query.userid;
+  let results, fields;
+  try {
+    [results, fields] = await connection.query(
+      "SELECT p.name,t.time,t.project \
+    FROM Timelog t \
+    INNER JOIN Project p ON p.id=t.project \
+    INNER JOIN User u ON u.id=t.user \
+    WHERE USER = ? ;",
+      [userId],
+    );
+  } catch (err) {
+    console.log(err);
+    res.status(400).json("ERROR");
+  }
+  let projects = {};
+  let projectIdtoName = {};
+  for (let i = 0; i < results.length; i++) {
+    if (results[i].project in projects) {
+      projects[results[i].project] += results[i].time;
+    } else {
+      projects[results[i].project] = results[i].time;
+      projectIdtoName[results[i].project] = results[i].name;
+    }
+  }
+  // map projectIds to project names before sending the data
+  let respData = {};
+  for (let key in projects) {
+    if (projects.hasOwnProperty(key)) {
+      respData[projectIdtoName[key]] = projects[key];
+    }
+  }
+  res.json(respData);
+});
+
+export default router;

backend/routers/reset.js

@@ -0,0 +1,16 @@
+import express from "express";
+import connection from "../db.js";
+
+const router = express.Router();
+
+router.get("/reset", async (req, res) => {
+  try {
+    await connection.query("CALL InitDb;", []);
+  } catch (err) {
+    console.log(err);
+    res.status(400).json({ message: "Error" });
+  }
+  res.status(200).json({ message: "Success" });
+});
+
+export default router;