Add highscores page

client/App.tsx

@@ -10,6 +10,7 @@ import { HomePage } from './pages/HomePage'
 import { LoginPage } from './pages/LoginPage'
 import { ProblemPage } from './pages/ProblemPage'
 import { ProfilePage } from './pages/ProfilePage'
+import { ScoresPage } from './pages/ScoresPage'
 
 const Redirect = ({ to }: { to: string }) => {
     useEffect(() => {
@@ -50,6 +51,10 @@ export const App = ({ url }: { url?: string }) => {
                     // @ts-ignore
                     path={pbu('/admin')}
                 />
+                <ScoresPage
+                    // @ts-ignore
+                    path={pbu('/scores')}
+                />
                 <Redirect
                     // @ts-ignore
                     default

client/pages/AdminPage.tsx

@@ -1,6 +1,6 @@
 import { route } from 'preact-router'
 import { useState } from 'preact/hooks'
-import { isAdministrator, isStudent, Solution as SolutionModel, SolutionId } from '../../shared/model'
+import { isAdministrator, Solution as SolutionModel, SolutionId } from '../../shared/model'
 import { sortByStringKey } from '../../shared/utils'
 import { prependBaseUrl, server } from '../api'
 import { Header } from '../components/Header'

client/pages/HomePage.tsx

@@ -6,7 +6,6 @@ import { Header } from '../components/Header'
 import { Problem } from '../components/Problem'
 import { Select } from '../components/Select'
 import { useResource, MetadataContext } from '../hooks'
-import { useCurrentUser } from '../hooks/useCurrentUser'
 
 function byTime(p: ProblemModel): string {
     return p.createdAt

client/pages/ScoresPage.tsx

@@ -0,0 +1,79 @@
+import { useContext, useState } from 'preact/hooks'
+import { Solution as SolutionModel, SolutionStat, User } from '../../shared/model'
+import { sortByNumericKey, sortByStringKey } from '../../shared/utils'
+import { Header } from '../components/Header'
+
+import { useResource, MetadataContext } from '../hooks'
+
+export const ScoresPage = () => {
+    const metadata = useContext(MetadataContext)
+    metadata.title = `PHC Problemi`
+    metadata.description = 'Bacheca di problemi del PHC'
+
+    const [stats] = useResource<Record<string, SolutionStat>>(`/api/stats`, {})
+
+    type Column = 'student' | 'sent' | 'correct'
+    type Order = 'ascending' | 'descending'
+    type SortStateSpace = [Column, Order]
+
+    const [[sortStateColumn, sortStateOrder], setSortState] = useState<SortStateSpace>(['sent', 'descending'])
+
+    const transitionColumn: (k: Column) => Partial<Record<Column, Record<Order, (c: Column) => SortStateSpace>>> = k => ({
+        [k]: {
+            'ascending': (c: Column) => c === k ? [k, 'descending'] : [c, 'ascending'],
+            'descending': (c: Column) => c === k ? [k, 'ascending'] : [c, 'ascending']
+        }
+    })
+
+    const transitionMap: Record<Column, Record<Order, (c: Column) => SortStateSpace>> = {
+        ...(transitionColumn('student') as Record<'student', Record<Order, (c: Column) => SortStateSpace>>),
+        ...(transitionColumn('sent') as Record<'sent', Record<Order, (c: Column) => SortStateSpace>>),
+        ...(transitionColumn('correct') as Record<'correct', Record<Order, (c: Column) => SortStateSpace>>),
+    }
+
+    let orderedStats
+
+    if (sortStateColumn === 'student') {
+        orderedStats = sortByStringKey(Object.entries(stats), ([user, s]) => user, sortStateOrder === 'ascending')
+    } else {
+        // @ts-ignore
+        orderedStats = sortByNumericKey(Object.entries(stats), ([user, s]) => s[sortStateColumn + 'SolutionsCount'], sortStateOrder === 'ascending')
+    }
+
+    return (
+        <>
+            <Header />
+            <main class="page-scores">
+                <div class="subtitle">Classifica</div>
+                <div class="table">
+                    <div class="cell header">
+                        <span>Studente</span>
+                        <span onClick={() => setSortState(transitionMap[sortStateColumn][sortStateOrder]('student'))}>
+                            <span class="material-symbols-outlined icon">{sortStateColumn === 'student' ? (sortStateOrder === 'ascending' ? 'expand_more' : 'expand_less') : 'unfold_more'}</span>
+
+                        </span>
+                    </div>
+                    <div class="cell header">
+                        <span>Soluzioni Inviate</span>
+                        <span onClick={() => setSortState(transitionMap[sortStateColumn][sortStateOrder]('sent'))}>
+                            <span class="material-symbols-outlined icon">{sortStateColumn === 'sent' ? (sortStateOrder === 'ascending' ? 'expand_more' : 'expand_less') : 'unfold_more'}</span>
+                        </span>
+                    </div>
+                    <div class="cell header">
+                        <span>Soluzioni Corrette</span>
+                        <span onClick={() => setSortState(transitionMap[sortStateColumn][sortStateOrder]('correct'))}>
+                            <span class="material-symbols-outlined icon">{sortStateColumn === 'correct' ? (sortStateOrder === 'ascending' ? 'expand_more' : 'expand_less') : 'unfold_more'}</span>
+                        </span>
+                    </div>
+                    {orderedStats.map(([user, s]) => (
+                        <>
+                            <div class="cell">{user}</div>
+                            <div class="cell">{s.sentSolutionsCount}</div>
+                            <div class="cell">{s.correctSolutionsCount}</div>
+                        </>
+                    ))}
+                </div>
+            </main >
+        </>
+    )
+}

client/styles/main.scss

@@ -223,7 +223,7 @@ p {
     margin: 0;
 }
 
-p + p {
+p+p {
     margin-top: 0.5rem;
 }
 
@@ -233,7 +233,7 @@ $heading-scale: 1.25;
 @function pow($number, $exponent) {
     $value: 1;
 
-    @if $exponent > 0 {
+    @if $exponent >0 {
         @for $i from 1 through $exponent {
             $value: $value * $number;
         }
@@ -347,6 +347,60 @@ main.page-problem {
     }
 }
 
+main.page-scores {
+    .table {
+        display: grid;
+        grid-template-columns: auto auto auto;
+
+        box-shadow: -2px 4px 6px 1px #00000018, 0 0 4px 0px #00000010;
+        border-radius: 0.5rem;
+        background: #ffffff;
+
+        user-select: none;
+
+        .icon {
+            cursor: pointer;
+            display: grid;
+            place-content: center;
+        }
+
+        overflow: hidden;
+
+        .cell {
+            text-align: center;
+            padding: 1rem 2rem;
+            display: flex;
+            align-items: center;
+
+            gap: 0.5rem;
+
+            border-left: 1px solid #ddd;
+            border-top: 1px solid #ddd;
+
+            &:nth-child(3n+1) {
+                border-left: none;
+            }
+
+            &:nth-child(1),
+            &:nth-child(2),
+            &:nth-child(3) {
+                border-top: none;
+            }
+
+            &.header {
+                font-weight: 400;
+                font-size: 22px;
+
+                background: #fdfdfd;
+
+                padding-right: 1rem;
+            }
+        }
+
+
+    }
+}
+
 //
 // Components
 //
@@ -473,6 +527,7 @@ header {
     &.correct {
         border: 4px solid #00aa00;
     }
+
     &.wrong {
         border: 4px solid #cc0000;
     }
@@ -531,10 +586,12 @@ header {
             color: #1653a3;
             font-style: italic;
         }
+
         .correct {
             color: green;
             // font-weight: 400;
         }
+
         .wrong {
             color: darkred;
             // font-weight: 400;
@@ -635,7 +692,8 @@ header {
 }
 
 // On mobile
-@media screen and (max-width: $device-s-width), (pointer: coarse) {
+@media screen and (max-width: $device-s-width),
+(pointer: coarse) {
     main {
         padding: 2rem 1rem 6rem;
 
@@ -702,7 +760,8 @@ header {
     }
 }
 
-@media screen and (max-width: $device-m-width), (pointer: coarse) {
+@media screen and (max-width: $device-m-width),
+(pointer: coarse) {
     .markdown-editor {
         grid-template-columns: auto;
         grid-template-rows: auto auto;
@@ -712,4 +771,4 @@ header {
             justify-self: center;
         }
     }
-}
+}

server.ts

@@ -14,7 +14,7 @@ import { RenderFunction } from './shared/ssr'
 // Load ".env"
 dotenv.config()
 
-const HTML_ROUTES = ['/', '/login', '/problem/:id', '/admin', '/profile']
+const HTML_ROUTES = ['/', '/login', '/problem/:id', '/admin', '/profile', '/scores']
 
 const config = {
     isDevelopment: process.env.MODE === 'development',

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

shared/model.ts

@@ -56,6 +56,11 @@ export type SolutionStatus = 'pending' | 'correct' | 'wrong'
 
 export type SolutionId = Id<Solution>
 
+export type SolutionStat = {
+    sentSolutionsCount: number,
+    correctSolutionsCount: number,
+}
+
 export type Solution = {
     id: SolutionId
     createdAt: string