using Archiver.Lib;

namespace Archiver;

public class Program
{
    public static void Main(string[] args)
    {
        try
        {
            Options options = CommandLine.Parser.Default.ParseArguments<Options>(args).Value;
            if (options is null || options.InputFiles is null || string.IsNullOrEmpty(options.OutputPath))
            {
                Console.WriteLine("[Archiver] Usage: archiver -i <input files> -o <output file>");
                return;
            }

            int c = options.InputFiles.Count();
            if (c == 0)
            {
                Console.WriteLine("[Archiver] Empty input files.");
                return;
            }

            if (c > 1)
            {
                Console.WriteLine($"[Archiver] Encode");
                Console.WriteLine($"[Archiver] Input : {string.Join(", ", options.InputFiles)}");
                Console.WriteLine($"[Archiver] Output: {options.OutputPath}");
                ArchiveEncoder.Encode(options.InputFiles, options.OutputPath).ConfigureAwait(false).GetAwaiter().GetResult();
            }
            else
            {
                string inputFile = options.InputFiles.ToArray()[0];
                if (ArchiveEncoder.IsArchiveFile(inputFile))
                {
                    Console.WriteLine($"[Archiver] Decode");
                    Console.WriteLine($"[Archiver] Input : {inputFile}");
                    Console.WriteLine($"[Archiver] Output: {options.OutputPath}");
                    ArchiveDecoder.Decode(inputFile, options.OutputPath).ConfigureAwait(false).GetAwaiter().GetResult();
                }
                else
                {
                    Console.WriteLine($"[Archiver] Encode");
                    Console.WriteLine($"[Archiver] Input : {string.Join(',', options.InputFiles)}");
                    Console.WriteLine($"[Archiver] Output: {options.OutputPath}");
                    ArchiveEncoder.Encode(inputFile, options.OutputPath).ConfigureAwait(false).GetAwaiter().GetResult();
                }
            }
        }
        catch (Exception ex)
        {
            Console.WriteLine($"[Archiver] Error: {ex.Message}");
        }
    }
}