using Core.Entities;

namespace Core.Utility;

/// <summary>
/// Utility class for formatting individual student names with overlap and absent markers.
/// </summary>
public static class StudentNameFormatter
{
    /// <summary>
    /// Options for formatting student names.
    /// </summary>
    public record FormatOptions
    {
        /// <summary>
        /// Whether the student is absent. If true, adds "(absent)" suffix. Default is false.
        /// </summary>
        public bool IsAbsent { get; init; } = false;

        /// <summary>
        /// Whether the student has schedule overlaps. If true, adds "*" suffix. Default is false.
        /// </summary>
        public bool HasOverlap { get; init; } = false;
    }

    /// <summary>
    /// Formats a single student name with overlap and absent markers.
    /// </summary>
    /// <param name="student">The student to format.</param>
    /// <param name="options">Formatting options.</param>
    /// <returns>Formatted student name.</returns>
    public static string FormatStudentName(Student student, FormatOptions options)
    {
        if (student == null)
            return string.Empty;

        var name = student.FirstName;

        // Add overlap marker
        if (options.HasOverlap)
        {
            name += "*";
        }

        // Add absent marker
        if (options.IsAbsent)
        {
            name += " (absent)";
        }

        return name;
    }
}