| | | 1 | | using Estud.Back.Domain.Courses; |
| | | 2 | | |
| | | 3 | | namespace Estud.Back.Features.Courses.AddCourseDisciplines; |
| | | 4 | | |
| | 28 | 5 | | public class AddCourseDisciplinesService(EstudDbContext ctx) : IEstudService |
| | | 6 | | { |
| | | 7 | | private class Validator : AbstractValidator<AddCourseDisciplinesIn> |
| | | 8 | | { |
| | 2 | 9 | | public Validator() |
| | | 10 | | { |
| | 2 | 11 | | RuleFor(x => x.Disciplines).NotEmpty().WithError(InvalidDisciplinesList.I); |
| | 30 | 12 | | RuleFor(x => x.Disciplines).Must(x => x != null && x.IsAllDistinct()).WithError(InvalidDisciplinesList.I); |
| | 2 | 13 | | } |
| | | 14 | | } |
| | 2 | 15 | | private static readonly Validator V = new(); |
| | | 16 | | |
| | | 17 | | public async Task<OneOf<EstudSuccess, EstudError>> Add(AddCourseDisciplinesIn data) |
| | | 18 | | { |
| | 30 | 19 | | if (V.Run(data, out var error)) return error; |
| | | 20 | | |
| | 26 | 21 | | var course = await ctx.Courses.Include(c => c.Links) |
| | 26 | 22 | | .FirstOrDefaultAsync(x => x.InstitutionId == ctx.RequestUser.InstitutionId && x.Id == data.CourseId); |
| | 28 | 23 | | if (course == null) return CourseNotFound.I; |
| | | 24 | | |
| | 24 | 25 | | var validDisciplineIds = await ctx.Disciplines |
| | 24 | 26 | | .Where(d => d.InstitutionId == ctx.RequestUser.InstitutionId && data.Disciplines.Contains(d.Id)) |
| | 24 | 27 | | .Select(d => d.Id) |
| | 24 | 28 | | .ToListAsync(); |
| | | 29 | | |
| | 28 | 30 | | if (validDisciplineIds.Count != data.Disciplines.Count) return InvalidDisciplinesList.I; |
| | | 31 | | |
| | 20 | 32 | | var existingDisciplineIds = course.Links.Select(l => l.DisciplineId).ToHashSet(); |
| | 226 | 33 | | validDisciplineIds.Where(id => !existingDisciplineIds.Contains(id)).ToList() |
| | 226 | 34 | | .ForEach(id => course.Links.Add(new CourseDiscipline { DisciplineId = id })); |
| | | 35 | | |
| | 20 | 36 | | await ctx.SaveChangesAsync(); |
| | | 37 | | |
| | 20 | 38 | | return EstudSuccess.I; |
| | 28 | 39 | | } |
| | | 40 | | } |