chapter-organizer/Core/Validation/Rules/StudentAssignmentRules/TooManyEventsRule.cs

using Core.Entities;
using Core.Models;
using Core.Validation.Rules.BaseRules;

namespace Core.Validation.Rules.StudentAssignmentRules;

/// <summary>
/// Validation rule that checks if a student has too many event assignments
/// </summary>
public class TooManyEventsRule : EventCountThresholdRuleBase
{
    protected override int GetCount(StudentEventStatistics statistics) => statistics.EventCount;

    protected override int GetThreshold(ValidationConfiguration config) => config.MaxRecommendedEvents;

    protected override bool ViolatesThreshold(int count, int threshold) => count > threshold;

    protected override ValidationSeverity GetBaseSeverity(ValidationConfiguration config) => config.EventCountSeverity;

    protected override int? GetCriticalThreshold(ValidationConfiguration config) => config.MaxCriticalEvents;

    protected override bool ViolatesCriticalThreshold(int count, int criticalThreshold) => count > criticalThreshold;

    protected override string Code => "TOO_MANY_EVENTS";

    protected override string GetMessage(int count, int threshold) =>
        $"Student has {count} events (max recommended: {threshold})";

    protected override Dictionary<string, object> BuildAdditionalMetadata(StudentEventStatistics statistics, ValidationConfiguration config)
    {
        return new Dictionary<string, object>
        {
            { "MaxRecommended", config.MaxRecommendedEvents },
            { "MaxCritical", config.MaxCriticalEvents }
        };
    }
}