chapter-organizer/WebApp/Components/Pages/Home.razor

@page "/"
@attribute [Authorize]
@using Microsoft.EntityFrameworkCore
@using WebApp.Models
@inject IConfiguration Configuration
@inject AppDbContext Context

<PageTitle>@Configuration["ChapterSettings:Name"] - TSA Chapter Organizer</PageTitle>

<MudPaper Elevation="0" Class="mb-6">
    <div class="d-flex flex-column align-center text-center mb-4">
        <MudImage Fluid="true" Src="TCO_Title.png" Alt="TSA Chapter Organizer" Class="mb-4" Style="width: 100%; max-width: 600px; height: auto;" />
        <MudHidden Breakpoint="Breakpoint.SmAndDown">
            <MudText Typo="Typo.h3" Class="mb-2">
                <strong>@Configuration["ChapterSettings:Name"]</strong>
            </MudText>
        </MudHidden>
        <MudHidden Breakpoint="Breakpoint.MdAndUp">
            <MudText Typo="Typo.h5" Class="mb-2">
                <strong>@Configuration["ChapterSettings:Name"]</strong>
            </MudText>
        </MudHidden>
        <MudText Typo="Typo.h6" Color="Color.Secondary">
            @Configuration["ChapterSettings:CompetitionYear"] Competition Year
        </MudText>
    </div>
</MudPaper>

<MudPaper Elevation="0" Class="mb-6">
<MudText Typo="Typo.h4" Class="mb-2">Data</MudText>
</MudPaper>
<MudGrid>
    <!-- Events Card -->
    <DashboardCard Icon="@AppIcons.Events"
                   Title="Events"
                   Count="@_eventCount"
                   Subtitle="Total Events"
                   Caption="@($"{_teamEventsCount} Team | {_individualEventsCount} Individual")"
                   NavigateUrl="/events" />

    <!-- Students Card -->
    <DashboardCard Icon="@AppIcons.Student"
                   Title="Students"
                   Count="@_studentCount"
                   Subtitle="Active Students"
                   NavigateUrl="/students">
        @if (!string.IsNullOrEmpty(_gradeDistribution) && _gradeDistribution != "No students yet")
        {
            <MudStack>
                <MudText Typo="Typo.caption">@((MarkupString)_gradeDistribution)</MudText>
            </MudStack>
        }
        else
        {
            <MudText Typo="Typo.caption" Class="mt-2">No students yet</MudText>
        }
    </DashboardCard>

    <!-- Teams Card -->
    <DashboardCard Icon="@AppIcons.Teams"
                   Title="Teams"
                   Count="@_teamCount"
                   Subtitle="Total Teams"
                   Caption="@($"{_groupTeamsCount} Team | {_individualTeamsCount} Individual")"
                   NavigateUrl="/teams" />
</MudGrid>
<MudPaper Elevation="0" Class="my-6">
    <MudText Typo="Typo.h4">Tools</MudText>
</MudPaper>

    <MudGrid>

        <!-- Meeting Schedule Card -->
        <DashboardCard Icon="@AppIcons.Scheduler"
                       Title="Schedule"
                       Caption="Optimize meeting times"
                       NavigateUrl="/meeting-schedule"/>
    </MudGrid>

@code {
    private int _eventCount;
    private int _individualEventsCount;
    private int _teamEventsCount;
    private int _studentCount;
    private string _gradeDistribution = "";
    private int _teamCount;
    private int _individualTeamsCount;
    private int _groupTeamsCount;

    protected override async Task OnInitializedAsync()
    {
        await LoadStatistics();
    }

    private async Task LoadStatistics()
    {
        // Events statistics
        var events = await Context.Events.ToListAsync();
        _eventCount = events.Count();
        _individualEventsCount = events.Count(e => e.EventFormat == EventFormat.Individual);
        _teamEventsCount = events.Count(e => e.EventFormat == EventFormat.Team);

        // Students statistics
        _studentCount = await Context.Students.CountAsync();

        // Grade distribution
        var gradeGroups = await Context.Students
            .GroupBy(s => s.Grade)
            .Select(g => new { Grade = g.Key, Count = g.Count() })
            .OrderBy(g => g.Grade)
            .ToListAsync();

        if (gradeGroups.Any())
        {
            _gradeDistribution = string.Join(" | ", gradeGroups.Select(g =>
                $"<span style=\"white-space: nowrap\">{AppIcons.GetOrdinalSuperscript(g.Grade)}: <strong>{g.Count}</strong></span>"));
        }
        else
        {
            _gradeDistribution = "No students yet";
        }

        // Teams statistics
        var contextTeams = await Context.Teams.ToListAsync();
        _teamCount = contextTeams.Count;
        _individualTeamsCount =  contextTeams.Count(e => e.Event.EventFormat == EventFormat.Individual);
        _groupTeamsCount = contextTeams.Count(e => e.Event.EventFormat == EventFormat.Team);
    }
}