using Microsoft.EntityFrameworkCore;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using WinFormsComponentOrientedHost.Data.Entities;

namespace WinFormsComponentOrientedHost.Data;

public sealed class AppDbContext : DbContext
{
    private readonly string _cs;

    public AppDbContext(string connectionString)
    {
        _cs = connectionString;
    }

    public DbSet<Category> Categories => Set<Category>();
    public DbSet<Product> Products => Set<Product>();
    public DbSet<User> Users => Set<User>();

    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
    {
        if (!optionsBuilder.IsConfigured)
        {
            optionsBuilder.UseNpgsql(_cs);
        }
    }

    protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
        modelBuilder.Entity<Category>(b =>
        {
            b.ToTable("categories", schema: "public");
            b.HasKey(x => x.id);
            b.Property(x => x.name).IsRequired().HasMaxLength(200);
            b.HasIndex(x => x.name).IsUnique();
        });

        modelBuilder.Entity<Product>(b =>
        {
            b.ToTable("products", schema: "public");
            b.HasKey(x => x.id);
            b.Property(x => x.name).IsRequired().HasMaxLength(200);
            b.Property(x => x.categoryText).IsRequired().HasMaxLength(200);
            b.Property(x => x.description).HasMaxLength(2000);
            b.Property(x => x.quantity).HasColumnType("numeric(18,3)");
            b.HasIndex(x => x.name);
        });
        modelBuilder.Entity<User>(b =>
        {
            b.ToTable("users", "public");
            b.HasKey(x => x.id);
            b.Property(x => x.login).IsRequired().HasMaxLength(100);
            b.HasIndex(x => x.login).IsUnique();
            b.Property(x => x.passwordHash).IsRequired().HasColumnName("password_hash");
            b.Property(x => x.accessLevel).IsRequired().HasColumnName("access_level");
            b.Property(x => x.createdAt).HasColumnName("created_at");
        });
    }
}