using Core.Entities;

namespace Core.Printing;

public sealed record EventMark(
    string Symbol,
    string Label,
    string Color,
    Func<EventDefinition, bool> Applies);

/// <summary>
/// Compact event-attribute marks used on the event-ranking index chip,
/// print badges, and the shared legend.
/// </summary>
public static class EventAttributeMarks
{
    public const string LevelOfEffort1 = "○";
    public const string LevelOfEffort2 = "◐";
    public const string LevelOfEffort3 = "⬤";
    public const string Individual = "ⓘ";
    public const string OnSite = "ⓐ";
    public const string Regional = "ⓡ";
    public const string Presubmission = "ⓟ";

    public static readonly IReadOnlyList<EventMark> LegendItems =
    [
        new(LevelOfEffort1, "Level of Effort: 1", "#757575", e => e.LevelOfEffort == 1),
        new(LevelOfEffort2, "Level of Effort: 2", "#616161", e => e.LevelOfEffort == 2),
        new(LevelOfEffort3, "Level of Effort: 3", "#424242", e => e.LevelOfEffort == 3),
        new(Individual, "Individual Event", "#9c27b0", e => e.EventFormat == EventFormat.Individual),
        new(OnSite, "On-Site Activity", "#ff9800", e => e.OnSiteActivity),
        new(Regional, "Regional Event", "#2196f3", e => e.RegionalEvent),
        new(Presubmission, "Presubmission", "#4caf50", e => e.Presubmission)
    ];

    public static string For(EventDefinition? evt)
    {
        if (evt is null)
            return string.Empty;

        return string.Join(
            " ",
            LegendItems.Where(m => m.Applies(evt)).Select(m => m.Symbol));
    }
}