using NetCorePal.Extensions.Domain;

namespace Fengling.RiskControl.Domain.Aggregates.RiskRules;

public class RiskRule : Entity<long>, IAggregateRoot
{
    public string Name { get; private set; } = string.Empty;
    public string Description { get; private set; } = string.Empty;
    public RiskRuleType RuleType { get; private set; }
    public RiskRuleAction Action { get; private set; }
    public string ConfigJson { get; private set; } = string.Empty;
    public int Priority { get; private set; }
    public bool IsActive { get; private set; } = true;
    public DateTime CreatedAt { get; private set; } = DateTime.UtcNow;
    public DateTime? UpdatedAt { get; private set; }

    private RiskRule() { }

    public static RiskRule Create(string name, string description, RiskRuleType type, 
        RiskRuleAction action, string configJson, int priority = 0)
    {
        if (string.IsNullOrWhiteSpace(name))
            throw new ArgumentException("规则名称不能为空", nameof(name));

        if (string.IsNullOrWhiteSpace(configJson))
            throw new ArgumentException("配置不能为空", nameof(configJson));

        System.Text.Json.JsonDocument.Parse(configJson);

        return new RiskRule
        {
            Name = name,
            Description = description,
            RuleType = type,
            Action = action,
            ConfigJson = configJson,
            Priority = priority,
            IsActive = true,
            CreatedAt = DateTime.UtcNow
        };
    }

    public void Deactivate()
    {
        IsActive = false;
        UpdatedAt = DateTime.UtcNow;
    }

    public void UpdateConfig(string newConfigJson)
    {
        System.Text.Json.JsonDocument.Parse(newConfigJson);
        ConfigJson = newConfigJson;
        UpdatedAt = DateTime.UtcNow;
    }

    public T? GetConfig<T>() where T : class
    {
        return System.Text.Json.JsonSerializer.Deserialize<T>(ConfigJson);
    }
}