using BlueWest.Data;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;

namespace BlueWest.WebApi.MySQL;

/// <summary>
/// Table containing countries
/// </summary>
public class CountriesDbContext  : DbContext
{

    public DbSet<Country> Countries { get; set; }
    
    public DbSet<Currency> Currencies { get; set; }

    
    public IConfiguration Configuration;

    
    /// <summary>
    /// Options to be injected in the app
    /// </summary>
    /// <param name="options"></param>
    public CountriesDbContext(DbContextOptions<CountriesDbContext> options) : base(options)
    {
        Database.EnsureCreated();
        
    }

    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
    {
        /*optionsBuilder.UseMySql(
            Configuration.GetConnectionString("LocalMySQL"),
            new MySqlServerVersion(new Version(8, 0, 11))
        );*/
    }

    /// <summary>
    /// The country number is the primary key
    /// The currency code is the primary key
    /// </summary>
    /// <param name="modelBuilder"></param>
    protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
        base.OnModelCreating(modelBuilder);
        modelBuilder.Entity<Country>(builder =>
        {
            builder.HasKey(x => x.Code);
        });
        modelBuilder.Entity<Currency>(builder =>
        {
            builder.HasKey(x => x.Num);
        });

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