Academic-Affairs-System/src/Jiaowu.Api/Controllers/DashboardController.cs

using Jiaowu.Api.Domain.Academic;
using Jiaowu.Api.Infrastructure.Persistence;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;

namespace Jiaowu.Api.Controllers;

[ApiController]
[Authorize]
[Route("api/dashboard")]
public sealed class DashboardController(AppDbContext db) : ControllerBase
{
    [HttpGet]
    public async Task<ActionResult<object>> Get(CancellationToken cancellationToken)
    {
        var currentTerm = await db.AcademicTerms
            .AsNoTracking()
            .Where(x => x.IsCurrent)
            .Select(x => new { x.Id, x.Name, x.StartDate, x.EndDate })
            .FirstOrDefaultAsync(cancellationToken);

        return new
        {
            CurrentTerm = currentTerm,
            Counts = new
            {
                Campuses = await db.Campuses.CountAsync(cancellationToken),
                Colleges = await db.Colleges.CountAsync(cancellationToken),
                Majors = await db.Majors.CountAsync(cancellationToken),
                Classes = await db.AdministrativeClasses.CountAsync(cancellationToken),
                Classrooms = await db.Classrooms.CountAsync(cancellationToken),
                Teachers = await db.Teachers.CountAsync(cancellationToken),
                Students = await db.Students.CountAsync(cancellationToken),
                Courses = await db.Courses.CountAsync(cancellationToken),
                CurriculumPlans = await db.CurriculumPlans.CountAsync(cancellationToken),
                TeachingTasks = await db.TeachingTasks.CountAsync(cancellationToken),
                SchedulePlans = await db.SchedulePlans.CountAsync(cancellationToken),
                CourseSelectionRounds = await db.CourseSelectionRounds
                    .CountAsync(cancellationToken),
                CourseSelectionOfferings = await db.CourseSelectionOfferings
                    .CountAsync(cancellationToken),
                CourseEnrollments = await db.CourseEnrollments
                    .CountAsync(
                        x => x.Status == CourseEnrollmentStatus.Enrolled,
                        cancellationToken),
                GradeSheets = await db.GradeSheets.CountAsync(cancellationToken),
                PublishedGradeSheets = await db.GradeSheets.CountAsync(
                    x => x.Status == GradeSheetStatus.Published,
                    cancellationToken),
                GradeRecords = await db.GradeRecords.CountAsync(cancellationToken),
                ExamPlans = await db.ExamPlans.CountAsync(cancellationToken),
                ExamSessions = await db.ExamSessions.CountAsync(cancellationToken),
                Users = await db.Users.CountAsync(cancellationToken)
            }
        };
    }
}