Index: iknow-api/Migrations/20251209133847_InitalCreate.Designer.cs
===================================================================
--- iknow-api/Migrations/20251209133847_InitalCreate.Designer.cs	(revision ab652ff2cf4420bcf41b4bc55899482afcf8a567)
+++ iknow-api/Migrations/20251209133847_InitalCreate.Designer.cs	(revision ab652ff2cf4420bcf41b4bc55899482afcf8a567)
@@ -0,0 +1,694 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using iknow_api.Data;
+
+#nullable disable
+
+namespace iknow_api.Migrations
+{
+    [DbContext(typeof(AppDbContext))]
+    [Migration("20251209133847_InitalCreate")]
+    partial class InitalCreate
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "9.0.10")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("iknow_api.Models.ContactInfo", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Address")
+                        .HasColumnType("text");
+
+                    b.Property<string>("City")
+                        .HasColumnType("text");
+
+                    b.Property<string>("MicrosoftEmail")
+                        .HasColumnType("text");
+
+                    b.Property<string>("Municipality")
+                        .HasColumnType("text");
+
+                    b.Property<string>("PhoneNumber")
+                        .HasColumnType("text");
+
+                    b.Property<int>("UserId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId")
+                        .IsUnique();
+
+                    b.ToTable("ContactInfo");
+                });
+
+            modelBuilder.Entity("iknow_api.Models.DependencySubject", b =>
+                {
+                    b.Property<int>("SubjectId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("DependencyId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("SubjectId", "DependencyId");
+
+                    b.HasIndex("DependencyId");
+
+                    b.ToTable("DependencySubjects");
+                });
+
+            modelBuilder.Entity("iknow_api.Models.Documents", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Body")
+                        .HasColumnType("text");
+
+                    b.Property<int>("Cost")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("Name")
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Documents");
+                });
+
+            modelBuilder.Entity("iknow_api.Models.EnrolledSemesters", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("MajorId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("QuotaType")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Type")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("UserId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Year")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("MajorId");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("EnrolledSemesters");
+                });
+
+            modelBuilder.Entity("iknow_api.Models.EnrollmentInfo", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("MajorId")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("StudyStatus")
+                        .HasColumnType("text");
+
+                    b.Property<string>("StudyType")
+                        .HasColumnType("text");
+
+                    b.Property<int>("UserId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("enrollmentYear")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("quota")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("MajorId");
+
+                    b.HasIndex("UserId")
+                        .IsUnique();
+
+                    b.ToTable("EnrollmentInfo");
+                });
+
+            modelBuilder.Entity("iknow_api.Models.HighSchool", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<float>("GPA")
+                        .HasColumnType("real");
+
+                    b.Property<int>("HighSchoolType")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("StudyLanguage")
+                        .HasColumnType("text");
+
+                    b.Property<int>("UserId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId")
+                        .IsUnique();
+
+                    b.ToTable("HighSchool");
+                });
+
+            modelBuilder.Entity("iknow_api.Models.Major", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Name")
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Majors");
+
+                    b.HasData(
+                        new
+                        {
+                            Id = 1,
+                            Name = "PIT"
+                        },
+                        new
+                        {
+                            Id = 2,
+                            Name = "SIIS"
+                        },
+                        new
+                        {
+                            Id = 3,
+                            Name = "SEIS"
+                        },
+                        new
+                        {
+                            Id = 4,
+                            Name = "KN"
+                        });
+                });
+
+            modelBuilder.Entity("iknow_api.Models.MajorSubjects", b =>
+                {
+                    b.Property<int>("MajorId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("SubjectId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Accreditation")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("MandatorySemester")
+                        .HasColumnType("integer");
+
+                    b.HasKey("MajorId", "SubjectId");
+
+                    b.HasIndex("SubjectId");
+
+                    b.ToTable("MajorSubjects");
+                });
+
+            modelBuilder.Entity("iknow_api.Models.PassedSubject", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<DateTime>("DatePassed")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<int>("Grade")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("SemesterSubjectId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("SemesterSubjectId")
+                        .IsUnique();
+
+                    b.ToTable("PassedSubjects");
+                });
+
+            modelBuilder.Entity("iknow_api.Models.Payment", b =>
+                {
+                    b.Property<int>("UserId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("EnrollmentInfoId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Id")
+                        .HasColumnType("integer");
+
+                    b.HasKey("UserId", "EnrollmentInfoId");
+
+                    b.HasIndex("EnrollmentInfoId");
+
+                    b.ToTable("Payment");
+                });
+
+            modelBuilder.Entity("iknow_api.Models.RefreshToken", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<DateTime>("ExpiresAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<bool>("IsValid")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("Token")
+                        .HasColumnType("text");
+
+                    b.Property<int>("UserId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("RefreshToken");
+                });
+
+            modelBuilder.Entity("iknow_api.Models.SemesterSubject", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("EnrolledSemesterId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ProfessorId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("SubjectId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("UserId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("EnrolledSemesterId");
+
+                    b.HasIndex("ProfessorId");
+
+                    b.HasIndex("SubjectId");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("SemesterSubject");
+                });
+
+            modelBuilder.Entity("iknow_api.Models.Subject", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int?>("AwardedCredits")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("Code")
+                        .HasColumnType("text");
+
+                    b.Property<int?>("DependencyCredit")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("Name")
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Subjects");
+                });
+
+            modelBuilder.Entity("iknow_api.Models.User", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<DateTime>("Bday")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Citizenship")
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("EMBG")
+                        .HasColumnType("text");
+
+                    b.Property<string>("Email")
+                        .HasColumnType("text");
+
+                    b.Property<string>("Gender")
+                        .HasColumnType("text");
+
+                    b.Property<string>("Index")
+                        .HasColumnType("text");
+
+                    b.Property<string>("MiddleName")
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .HasColumnType("text");
+
+                    b.Property<string>("Nationality")
+                        .HasColumnType("text");
+
+                    b.Property<string>("PasswordHash")
+                        .HasColumnType("text");
+
+                    b.Property<int>("Role")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("Surname")
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("User");
+                });
+
+            modelBuilder.Entity("iknow_api.Models.UserDocuments", b =>
+                {
+                    b.Property<int>("UserId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("DocumentId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("UserId", "DocumentId");
+
+                    b.HasIndex("DocumentId");
+
+                    b.ToTable("UserDocuments");
+                });
+
+            modelBuilder.Entity("iknow_api.Models.ContactInfo", b =>
+                {
+                    b.HasOne("iknow_api.Models.User", "User")
+                        .WithOne("ContactInfo")
+                        .HasForeignKey("iknow_api.Models.ContactInfo", "UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("iknow_api.Models.DependencySubject", b =>
+                {
+                    b.HasOne("iknow_api.Models.Subject", "Dependency")
+                        .WithMany("Dependents")
+                        .HasForeignKey("DependencyId")
+                        .OnDelete(DeleteBehavior.Restrict)
+                        .IsRequired();
+
+                    b.HasOne("iknow_api.Models.Subject", "Subject")
+                        .WithMany("Dependencies")
+                        .HasForeignKey("SubjectId")
+                        .OnDelete(DeleteBehavior.Restrict)
+                        .IsRequired();
+
+                    b.Navigation("Dependency");
+
+                    b.Navigation("Subject");
+                });
+
+            modelBuilder.Entity("iknow_api.Models.EnrolledSemesters", b =>
+                {
+                    b.HasOne("iknow_api.Models.Major", "Major")
+                        .WithMany()
+                        .HasForeignKey("MajorId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("iknow_api.Models.User", "User")
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Major");
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("iknow_api.Models.EnrollmentInfo", b =>
+                {
+                    b.HasOne("iknow_api.Models.Major", "Major")
+                        .WithMany()
+                        .HasForeignKey("MajorId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("iknow_api.Models.User", "User")
+                        .WithOne("EnrollmentInfo")
+                        .HasForeignKey("iknow_api.Models.EnrollmentInfo", "UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Major");
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("iknow_api.Models.HighSchool", b =>
+                {
+                    b.HasOne("iknow_api.Models.User", "User")
+                        .WithOne("HighSchool")
+                        .HasForeignKey("iknow_api.Models.HighSchool", "UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("iknow_api.Models.MajorSubjects", b =>
+                {
+                    b.HasOne("iknow_api.Models.Major", "Majors")
+                        .WithMany("Subjects")
+                        .HasForeignKey("MajorId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("iknow_api.Models.Subject", "Subjects")
+                        .WithMany("Majors")
+                        .HasForeignKey("SubjectId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Majors");
+
+                    b.Navigation("Subjects");
+                });
+
+            modelBuilder.Entity("iknow_api.Models.PassedSubject", b =>
+                {
+                    b.HasOne("iknow_api.Models.SemesterSubject", "SemesterSubject")
+                        .WithOne("PassedSubject")
+                        .HasForeignKey("iknow_api.Models.PassedSubject", "SemesterSubjectId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("SemesterSubject");
+                });
+
+            modelBuilder.Entity("iknow_api.Models.Payment", b =>
+                {
+                    b.HasOne("iknow_api.Models.EnrolledSemesters", "EnrolledSemesters")
+                        .WithMany("Users")
+                        .HasForeignKey("EnrollmentInfoId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("iknow_api.Models.User", "User")
+                        .WithMany("EnrolledSemesters")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("EnrolledSemesters");
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("iknow_api.Models.RefreshToken", b =>
+                {
+                    b.HasOne("iknow_api.Models.User", "User")
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("iknow_api.Models.SemesterSubject", b =>
+                {
+                    b.HasOne("iknow_api.Models.EnrolledSemesters", "EnrolledSemester")
+                        .WithMany("SemesterSubjects")
+                        .HasForeignKey("EnrolledSemesterId")
+                        .OnDelete(DeleteBehavior.Restrict)
+                        .IsRequired();
+
+                    b.HasOne("iknow_api.Models.User", "Professor")
+                        .WithMany("TeachingSubjects")
+                        .HasForeignKey("ProfessorId")
+                        .OnDelete(DeleteBehavior.Restrict)
+                        .IsRequired();
+
+                    b.HasOne("iknow_api.Models.Subject", "Subject")
+                        .WithMany("SemesterSubjects")
+                        .HasForeignKey("SubjectId")
+                        .OnDelete(DeleteBehavior.Restrict)
+                        .IsRequired();
+
+                    b.HasOne("iknow_api.Models.User", "User")
+                        .WithMany("EnrolledSemesterUserSubjects")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Restrict)
+                        .IsRequired();
+
+                    b.Navigation("EnrolledSemester");
+
+                    b.Navigation("Professor");
+
+                    b.Navigation("Subject");
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("iknow_api.Models.UserDocuments", b =>
+                {
+                    b.HasOne("iknow_api.Models.Documents", "Documents")
+                        .WithMany("User")
+                        .HasForeignKey("DocumentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("iknow_api.Models.User", "User")
+                        .WithMany("Documents")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Documents");
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("iknow_api.Models.Documents", b =>
+                {
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("iknow_api.Models.EnrolledSemesters", b =>
+                {
+                    b.Navigation("SemesterSubjects");
+
+                    b.Navigation("Users");
+                });
+
+            modelBuilder.Entity("iknow_api.Models.Major", b =>
+                {
+                    b.Navigation("Subjects");
+                });
+
+            modelBuilder.Entity("iknow_api.Models.SemesterSubject", b =>
+                {
+                    b.Navigation("PassedSubject");
+                });
+
+            modelBuilder.Entity("iknow_api.Models.Subject", b =>
+                {
+                    b.Navigation("Dependencies");
+
+                    b.Navigation("Dependents");
+
+                    b.Navigation("Majors");
+
+                    b.Navigation("SemesterSubjects");
+                });
+
+            modelBuilder.Entity("iknow_api.Models.User", b =>
+                {
+                    b.Navigation("ContactInfo");
+
+                    b.Navigation("Documents");
+
+                    b.Navigation("EnrolledSemesterUserSubjects");
+
+                    b.Navigation("EnrolledSemesters");
+
+                    b.Navigation("EnrollmentInfo");
+
+                    b.Navigation("HighSchool");
+
+                    b.Navigation("TeachingSubjects");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}