using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Metadata.Builders;
using Prefab.Data.Entities;

namespace Prefab.Data.Configs
{
    /// <summary>
    /// Entity Framework Core configuration for the <see cref="AuditLog"/> entity.
    /// </summary>
    public class AuditLogConfig() : Prefab.Data.Configs.EntityConfig<AuditLog>(nameof(IPrefabDb.AuditLogs))
    {
        /// <summary>
        /// Configures the properties and relationships for the <see cref="AuditLog"/> entity.
        /// </summary>
        /// <param name="builder">The builder to be used to configure the entity type.</param>
        public override void Configure(EntityTypeBuilder<AuditLog> builder)
        {
            builder.HasKey(e => e.Id);

            builder.Property(e => e.Entity)
                .HasMaxLength(Rules.EntityMaxLength)
                .IsRequired();

            builder.Property(e => e.State)
                .IsRequired();

            builder.Property(e => e.CreatedBy)
                .IsRequired();

            builder.Property(e => e.CreatedOn)
                .IsRequired();

            builder.HasMany(e => e.Items)
                .WithOne(i => i.AuditLog)
                .HasForeignKey(i => i.AuditLogId)
                .OnDelete(DeleteBehavior.Cascade);
        }

        /// <summary>
        /// Validation rules and settings for <see cref="AuditLog"/> properties.
        /// </summary>
        public static class Rules
        {
            /// <summary>Maximum length for the Entity name.</summary>
            public const int EntityMaxLength = 200;
        }
    }
}