// 2026년 포트폴리오용 재구성 코드. 실제 업무 당시 소스가 아닙니다.
// 2026 portfolio reconstruction with fictional steps. Not launch-control software.
using System;
namespace PortfolioExamples
{
    public sealed class ScenarioChecklist
    {
        readonly string[] steps;
        public int Completed { get; private set; }
        public bool Finished => Completed == steps.Length;
        public ScenarioChecklist(params string[] names)
        {
            if(names==null||names.Length==0)throw new ArgumentException("At least one step is required.");
            foreach (string name in names) if (string.IsNullOrWhiteSpace(name)) throw new ArgumentException("Step names cannot be empty.");
            steps=(string[])names.Clone();
        }
        public string Current => Finished ? null : steps[Completed];
        public bool Confirm(string name, bool externalCheckPassed)
        { if(Finished||!externalCheckPassed||!StringComparer.Ordinal.Equals(Current,name))return false; Completed++; return true; }
        public void Reset() => Completed=0;
    }
}