using BlueWest.Data;
using BlueWest.WebApi.Context.Users;
using Microsoft.EntityFrameworkCore;

namespace BlueWest.WebApi.EF.Model
{
    /// <summary>
    /// Database model configuration extensions
    /// </summary>
    public static class ModelBuilderExtensions
    {
        #region Initialization

        static ModelBuilderExtensions()
        {
        }

        /// <summary>
        ///  Setup the database model
        /// </summary>
        /// <param name="modelBuilder"></param>
        public static void ConfigureCurrentDbModel(this ModelBuilder modelBuilder)
        {
            modelBuilder
                .ConfigureDatabaseKeys()
                .CurrencyModel()
                .ConfigureUserModel();
            
            //.ConfigureIdentityModel();
        }
        
        #endregion

        #region DatabasePK
        
        private static ModelBuilder ConfigureDatabaseKeys(this ModelBuilder modelBuilder)
        {
            // User
            modelBuilder
                .Entity<User>(builder => builder
                .HasKey(user => user.Id))
                .Entity<User>().Property(user => user.Id)
                .ValueGeneratedOnAdd();
            
            // Country
            modelBuilder
                .Entity<Country>(builder => builder
                .HasKey(country => country.Id))
                .Entity<Country>().Property(country =>  country.Id)
                .ValueGeneratedOnAdd();
            
            // Currency
            modelBuilder
                .Entity<Currency>(builder => builder
                .HasKey(currency => currency.Id))
                .Entity<Currency>()
                .Property(currency =>  currency.Id)
                .ValueGeneratedOnAdd();
            
            // Company PK
            modelBuilder
                .Entity<Company>(builder => builder
                .HasKey(company => company.Id))
                .Entity<Company>().Property(company =>  company.Id)
                .ValueGeneratedOnAdd();
             
            // Industry PK
            modelBuilder
                .Entity<Industry>(builder => builder
                .HasKey(industry => industry.Id))
                .Entity<Industry>().Property(industry =>  industry.Id)
                .ValueGeneratedOnAdd();
            
             
            // Product
            modelBuilder
                .Entity<Industry>(builder => builder
                .HasKey(industry => industry.Id));
            
            modelBuilder
                .Entity<Industry>()
                .Property(industry =>  industry.Id)
                .ValueGeneratedOnAdd();

            // FinanceOp
            return 
                modelBuilder.Entity<FinanceOp>(builder => builder
                .HasKey(financeOp => financeOp.Id));
            
            
        }
        #endregion

        #region Database Models

        private static ModelBuilder CurrencyModel(this ModelBuilder modelBuilder)
        {

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

            return modelBuilder;

        }

        private static ModelBuilder ConfigureUserModel(this ModelBuilder modelBuilder)
        {
            // FinanceOp => User
            modelBuilder
                .Entity<FinanceOp>(builder => builder
                    .HasOne<User>()
                    .WithMany(ft => ft.FinanceTransactions)
                    .HasForeignKey(x => x.UserId));

            modelBuilder.Entity<User>(b => b.HasOne<ApplicationUser>()
                .WithMany(x => x.Users)
                .HasForeignKey(x => x.ApplicationUserId));
            
            return modelBuilder;
        }
        
        #endregion

        public static void ConfigureIdentityModel(this ModelBuilder builder)
        {
            builder.Entity<ApplicationUser>(b =>
            {
                b.HasMany<ApplicationUserRole>().WithOne().HasForeignKey(ur => ur.UserId).IsRequired();
            });

            builder.Entity<ApplicationRole>(b =>
            {
                b.HasKey(r => r.Id);
                b.HasIndex(r => r.NormalizedName).HasDatabaseName("RoleNameIndex").IsUnique();
                b.ToTable("Roles");
                b.Property(r => r.ConcurrencyStamp).IsConcurrencyToken();

                b.Property(u => u.Name).HasMaxLength(256);
                b.Property(u => u.NormalizedName).HasMaxLength(256);

                b.HasMany<ApplicationUserRole>().WithOne().HasForeignKey(ur => ur.RoleId).IsRequired();
                b.HasMany<ApplicationRoleClaim>().WithOne().HasForeignKey(rc => rc.RoleId).IsRequired();
            });

            builder.Entity<ApplicationRoleClaim>(b =>
            {
                b.HasKey(rc => rc.Id);
                b.ToTable("RoleClaims");
            });

            builder.Entity<ApplicationUserRole>(b =>
            {
                b.HasKey(r => new { r.UserId, r.RoleId });
                b.ToTable("UserRoles");
            });
        }
        
    }
}