Add highscores page

server/routes.ts

@@ -32,6 +32,7 @@ import {
     ProblemId,
     Solution as SolutionModel,
     SolutionId,
+    SolutionStat,
     User as UserModel,
     UserId,
 } from '../shared/model'
@@ -208,6 +209,37 @@ export async function createApiRouter() {
         res.json(id)
     })
 
+    // questa route ritorna la lista di utenti con associato numero di soluzioni inviate, corrette.
+    r.get('/api/stats', async (req, res) => {
+        let queryUser = (req.query.user ?? null) as UserId | null
+
+        let solutions = await getSolutions(db)
+
+        if (queryUser !== null) {
+            solutions = solutions.filter(s => s.sentBy === queryUser)
+        }
+
+        const stats: Record<string, SolutionStat> = {}
+
+        solutions.forEach(s => {
+            if (!stats[s.sentBy]) {
+                stats[s.sentBy] = {
+                    sentSolutionsCount: s.status !== "pending" ? 1 : 0,
+                    correctSolutionsCount: s.status === "correct" ? 1 : 0
+                }
+            } else {
+                if (s.status !== "pending") {
+                    stats[s.sentBy].sentSolutionsCount += 1
+                }
+                if (s.status === "correct") {
+                    stats[s.sentBy].correctSolutionsCount += 1
+                }
+            }
+        })
+
+        return res.json(stats)
+    })
+
     r.get('/api/solutions', async (req, res) => {
         let queryUser = (req.query.user ?? null) as UserId | null
         let queryProblem = (req.query.problem ?? null) as ProblemId | null