using Microsoft.EntityFrameworkCore;
using LogisticsApp.Server.Models;

namespace LogisticsApp.Server.Data
{
    public class ApplicationDbContext : DbContext
    {
        public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options) : base(options) { }

        public DbSet<Order> Orders { get; set; }
        public DbSet<Vehicle> Vehicles { get; set; }
        public DbSet<WaybillEntry> WaybillEntries { get; set; }
        public DbSet<User> Users { get; set; }

        protected override void OnModelCreating(ModelBuilder modelBuilder)
        {
            foreach (var entityType in modelBuilder.Model.GetEntityTypes())
            {
                foreach (var property in entityType.GetProperties())
                {
                    if (property.ClrType == typeof(DateTime))
                    {
                        modelBuilder.Entity(entityType.ClrType)
                            .Property<DateTime>(property.Name)
                            .HasConversion(
                                v => v.Kind == DateTimeKind.Unspecified
                                    ? DateTime.SpecifyKind(v, DateTimeKind.Utc)
                                    : v.ToUniversalTime(),
                                v => DateTime.SpecifyKind(v, DateTimeKind.Utc));
                    }
                    else if (property.ClrType == typeof(DateTime?))
                    {
                        modelBuilder.Entity(entityType.ClrType)
                            .Property<DateTime?>(property.Name)
                            .HasConversion(
                                v => !v.HasValue
                                    ? v
                                    : (v.Value.Kind == DateTimeKind.Unspecified
                                        ? DateTime.SpecifyKind(v.Value, DateTimeKind.Utc)
                                        : v.Value.ToUniversalTime()),
                                v => v.HasValue
                                    ? DateTime.SpecifyKind(v.Value, DateTimeKind.Utc)
                                    : v);
                    }
                }
            }


            modelBuilder.Entity<Order>()
                .HasIndex(o => o.Status);

            modelBuilder.Entity<Order>()
                .HasIndex(o => o.OrderDate);

            modelBuilder.Entity<Order>()
                .HasIndex(o => o.ClientName);

            modelBuilder.Entity<Vehicle>()
                .HasIndex(v => v.LicensePlate);

            modelBuilder.Entity<WaybillEntry>()
                .HasIndex(w => new { w.VehicleId, w.Date });

            modelBuilder.Entity<User>()
                .HasIndex(u => u.Username)
                .IsUnique();

            base.OnModelCreating(modelBuilder);
        }
    }
}