62 lines
1.9 KiB
C#
62 lines
1.9 KiB
C#
using NetCorePal.Extensions.Domain;
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namespace Fengling.RiskControl.Domain.Aggregates.RiskScores;
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public class RiskScore : Entity<long>, IAggregateRoot
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{
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public long MemberId { get; private set; }
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public string EntityType { get; private set; } = string.Empty;
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public string EntityId { get; private set; } = string.Empty;
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public int TotalScore { get; private set; }
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public RiskLevel RiskLevel { get; private set; }
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private readonly List<RiskFactor> _factors = new();
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public IReadOnlyCollection<RiskFactor> Factors => _factors.AsReadOnly();
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public DateTime CreatedAt { get; private set; } = DateTime.UtcNow;
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public DateTime? ExpiresAt { get; private set; }
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private RiskScore() { }
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public static RiskScore Create(long memberId, string entityType, string entityId,
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DateTime? expiresAt = null)
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{
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return new RiskScore
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{
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MemberId = memberId,
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EntityType = entityType,
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EntityId = entityId,
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TotalScore = 0,
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RiskLevel = RiskLevel.Low,
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ExpiresAt = expiresAt
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};
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}
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public void AddRiskFactor(string factorType, int points, string description)
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{
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_factors.Add(RiskFactor.Create(factorType, points, description));
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RecalculateScore();
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}
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public void Reset()
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{
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_factors.Clear();
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TotalScore = 0;
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RiskLevel = RiskLevel.Low;
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}
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private static readonly int HIGH_THRESHOLD = 70;
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private static readonly int MEDIUM_THRESHOLD = 30;
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private void RecalculateScore()
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{
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TotalScore = _factors.Sum(f => f.Points);
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RiskLevel = TotalScore >= HIGH_THRESHOLD ? RiskLevel.High :
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TotalScore >= MEDIUM_THRESHOLD ? RiskLevel.Medium :
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RiskLevel.Low;
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}
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public bool IsExpired()
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{
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return ExpiresAt.HasValue && DateTime.UtcNow > ExpiresAt.Value;
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}
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}
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