using LehrerApp.Core.Models;
using LehrerApp.Core.Services;
using Xunit;

namespace LehrerApp.Desktop.Tests;

public sealed class PersonalDataExportServiceTests
{
    [Fact]
    public void ExportAsJson_EnthaeltNotenMitarbeitUndDokumentationDesSchuelers()
    {
        var studentId = Guid.NewGuid();
        var groupId = Guid.NewGuid();
        var student = new Student { Id = studentId, FirstName = "Anna", LastName = "Beispiel" };

        var students = new FakeStudents([student]);
        var groups = new FakeGroups([new LearningGroup { Id = groupId, Name = "Q1 Chemie" }]);
        var memberships = new FakeMemberships([new GroupMembership { StudentId = studentId, GroupId = groupId }]);
        var grades = new FakeGrades();
        grades.Add(new Grade { StudentId = studentId, GroupId = groupId, Value = "2", Category = GradeCategory.Oral });
        var results = new FakeResults();
        var entries = new FakeEntries();
        entries.Add(new ParticipationEntry { StudentId = studentId, SessionId = Guid.NewGuid() });
        var documentation = new FakeDocumentation();
        documentation.Add(new Documentation { StudentId = studentId, Title = "Elterngespräch" });

        var seatingPlans = new FakeSeatingPlans([
            new SeatingPlan
            {
                GroupId = groupId, Name = "Standard", Room = "B204",
                Assignments = [new SeatAssignment { Row = 1, Column = 2, StudentId = studentId }],
            },
        ]);
        var service = new PersonalDataExportService(students, groups, memberships, grades, results, entries,
            documentation, seatingPlans);

        var json = service.ExportAsJson(studentId);

        Assert.Contains("Anna", json);
        Assert.Contains("Elterngespräch", json);
        Assert.Contains("\"Value\": \"2\"", json);
        Assert.Contains("\"Sitzplan\": \"Standard\"", json);
        Assert.Contains("\"Reihe\": 2", json);
    }

    [Fact]
    public void ExportAsJson_UnbekannterSchueler_WirftException()
    {
        var service = new PersonalDataExportService(
            new FakeStudents([]), new FakeGroups([]), new FakeMemberships([]),
            new FakeGrades(), new FakeResults(), new FakeEntries(), new FakeDocumentation(),
            new FakeSeatingPlans());

        Assert.Throws<InvalidOperationException>(() => service.ExportAsJson(Guid.NewGuid()));
    }
}