using MessageService.Domain.Entities;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Metadata.Builders;

namespace MessageService.Infrastructure.Configs
{
    public class MessageConfig : IEntityTypeConfiguration<Message>
    {
        public void Configure(EntityTypeBuilder<Message> builder)
        {
            builder.ToTable("messages");
            builder.HasKey(x => x.Id);
            builder.HasIndex(x => new { x.StreamKey, x.SequenceId });
            builder.HasIndex(x => new { x.StreamKey, x.MsgType, x.State, x.SequenceId });
            builder.ComplexProperty(x => x.Content, c =>
            {
                // 1. Fallback 是简单字符串，直接映射
                c.Property(p => p.Fallback)
                 .HasMaxLength(255)
                 .IsRequired();

                // 2. Body 是 object (JSON 载荷)
                // ComplexProperty 无法直接处理 object 类型，通常将其序列化为 JSON 字符串存储
                c.Property(p => p.RawBody)
     .HasColumnName("Content_Body");

                // 3. Ext 是 Dictionary<string, string>
                // 同样推荐使用 HasConversion 映射为 JSON 字符串，或者在某些库中使用 JSONB 映射
                // 映射 RawExt 字符串
                c.Property(p => p.RawExt)
                 .HasColumnName("Content_Ext");

                // 4. Quote 是嵌套的值对象 (QuoteInfo)
                // ComplexProperty 支持嵌套定义
                c.ComplexProperty(p => p.Quote, q =>
                {
                    q.IsRequired(true); // 引用信息是可选的
                    q.Property(qi => qi.MessageId).HasColumnName("Quote_MsgId");
                    q.Property(qi => qi.SenderId).HasColumnName("Quote_SenderId");
                    q.Property(qi => qi.SenderName).HasMaxLength(50).HasColumnName("Quote_SenderName");
                    q.Property(qi => qi.MessageType).HasColumnName("Quote_MsgType");
                    q.Property(qi => qi.Preview).HasMaxLength(100).HasColumnName("Quote_Preview");
                });
            });
        }
    }
}