using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Metadata.Builders;
using Monitoring.Domain.Entities.AlertRule;

namespace Monitoring.Infrastructure.Persistence.Configurations;

/// <summary>告警规则表映射（id + 外键索引列 + json_data + 审计）。</summary>
public class AlertRuleConfiguration : IEntityTypeConfiguration<AlertRuleEntity>
{
    public void Configure(EntityTypeBuilder<AlertRuleEntity> builder)
    {
        builder.ToTable("b_alert_rules");
        builder.HasKey(e => e.Id);
        builder.Property(e => e.Id).ValueGeneratedNever().HasComment("规则ID");
        builder.Property(e => e.ExternalSystemId).HasComment("绑定的外部系统ID");
        builder.Property(e => e.JsonData).HasColumnType("jsonb").IsRequired().HasComment("业务数据: 名称/指标/阈值/运算符/严重级别/启用/冷却");

        // 审计列
        builder.Property(e => e.CreatedBy).HasMaxLength(100).HasComment("创建人");
        builder.Property(e => e.CreatedAt).HasComment("创建时间");
        builder.Property(e => e.UpdatedBy).HasMaxLength(100).HasComment("更新人");
        builder.Property(e => e.UpdatedAt).HasComment("更新时间");
        builder.Property(e => e.IsDeleted).HasDefaultValue(false).HasComment("是否已软删除");
        builder.Property(e => e.OperatorIP).HasMaxLength(50).HasComment("操作者IP");

        builder.HasIndex(e => e.ExternalSystemId);
    }
}