69 lines
2.1 KiB
C#
69 lines
2.1 KiB
C#
using AutoMapper;
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using FastEndpoints;
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using MetaCourse.Api.Data;
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using MetaCourse.Api.DTOs.UserCourses;
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using MetaCourse.Api.Entities;
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using Microsoft.EntityFrameworkCore;
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namespace MetaCourse.Api.Endpoints.UserCourses;
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public class EnrollEndpoint(AppDbContext db, AutoMapper.IMapper mapper) : Endpoint<EnrollDto, GetEnrollmentDto>
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{
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public override void Configure()
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{
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Post("api/courses/{courseId}/enroll");
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AllowAnonymous();
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Summary(s => s.Summary = "Inscrit un utilisateur à un cours publié");
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}
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public override async Task HandleAsync(EnrollDto req, CancellationToken ct)
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{
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var course = await db.Courses.FirstOrDefaultAsync(c => c.Id == req.CourseId, ct);
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if (course is null)
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{
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AddError("Le cours n'existe pas.");
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await SendErrorsAsync(404, ct);
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return;
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}
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if (course.Status != CourseStatus.Published)
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{
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AddError("Impossible de s'inscrire à un cours non publié.");
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await SendErrorsAsync(422, ct);
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return;
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}
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var userExists = await db.Users.AnyAsync(u => u.Id == req.UserId, ct);
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if (!userExists)
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{
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AddError("L'utilisateur n'existe pas.");
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await SendErrorsAsync(404, ct);
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return;
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}
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var alreadyEnrolled = await db.UserCourses
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.AnyAsync(uc => uc.UserId == req.UserId && uc.CourseId == req.CourseId, ct);
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if (alreadyEnrolled)
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{
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AddError("L'utilisateur est déjà inscrit à ce cours.");
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await SendErrorsAsync(409, ct);
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return;
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}
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var enrollment = new UserCourse
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{
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UserId = req.UserId,
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CourseId = req.CourseId
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};
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db.UserCourses.Add(enrollment);
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await db.SaveChangesAsync(ct);
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var result = await db.UserCourses
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.Include(uc => uc.Course)
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.FirstAsync(uc => uc.UserId == req.UserId && uc.CourseId == req.CourseId, ct);
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await SendAsync(mapper.Map<GetEnrollmentDto>(result), 201, ct);
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}
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}
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