using Core.Entities;
using Heron.MudCalendar;

namespace WebApp.Models;

/// <summary>
/// Calendar event item model for Heron.MudCalendar component.
/// Maps from EventOccurrence entity to calendar event format.
/// </summary>
public class CalendarEventItem : CalendarItem
{
    /// <summary>
    /// Gets the original EventOccurrence data.
    /// </summary>
    public EventOccurrence? EventOccurrenceData { get; set; }

    /// <summary>
    /// Gets the associated EventDefinition if available.
    /// </summary>
    public EventDefinition? EventDefinition { get; set; }

    /// <summary>
    /// Gets the list of student first names from teams matching the EventDefinition.
    /// </summary>
    public List<string> StudentFirstNames { get; set; } = [];

    /// <summary>
    /// Parameterless constructor required by Heron.MudCalendar component.
    /// </summary>
    public CalendarEventItem()
    {
        // Initialize base class properties to avoid null reference issues
        Text = string.Empty;
        Start = DateTime.MinValue;
        End = DateTime.MinValue;
    }

    public CalendarEventItem(EventOccurrence occurrence, IEnumerable<string>? studentFirstNames = null)
    {
        EventOccurrenceData = occurrence;
        EventDefinition = occurrence.EventDefinition;
        // Set base class properties that the calendar component uses
        StudentFirstNames = studentFirstNames?.ToList() ?? [];
        Text = occurrence.EventDefinition?.ShortName ?? string.Empty;
        Start = occurrence.StartTime;
        End = occurrence.EndTime ?? occurrence.StartTime.AddHours(1);

    }
}