CodeLiturgy.Dashboard/BlueWest.Api/MySQL/ModelBuilderExtensions.cs

using BlueWest.Data;
using Microsoft.EntityFrameworkCore;

namespace BlueWest.WebApi.MySQL
{
    public static class ModelBuilderExtensions
    {
        public static void ProjectDatabaseModel(this ModelBuilder modelBuilder)
        {
            // Keys
            CountryCurrencyModel(modelBuilder);
            UserModel(modelBuilder);

        }

        private static void CountryCurrencyModel(ModelBuilder modelBuilder)
        {
            modelBuilder.Entity<Country>(builder =>
            {
                builder.HasKey(x => x.Code);
            });
            modelBuilder.Entity<Currency>(builder =>
            {
                builder.HasKey(x => x.Num);
            });

            // Relationships 
            modelBuilder.Entity<Currency>()
                .HasMany(ub => ub.Countries)
                .WithMany(au => au.Currencies);
        
            modelBuilder.Entity<Country>()
                .HasMany(ub => ub.Currencies)
                .WithMany(au => au.Countries);

        }

        private static void UserModel(ModelBuilder modelBuilder)
        {

            modelBuilder.Entity<Country>(builder => 
                builder
                    .HasMany<User>()
                    .WithOne(user => user.Country));

            modelBuilder
                .Entity<User>(builder => builder
                    .HasOne<Country>()
                    .WithMany(co => co.Users));
            
            
            
            modelBuilder.Entity<FinanceOp>(builder =>
            {
                builder.HasOne<User>()
                    .WithMany(x => x.FinanceTransactions)
                    .HasForeignKey(x => x.UserId);
            });
        }
    }
}