using Microsoft.Extensions.Logging;

namespace File_Folder_Helper.ADO2025.PI4;

internal static partial class Helper20250114
{

    private static void Rename(string[] directories, string dateFormat)
    {
        string[] files;
        DateTime dateTime;
        FileInfo fileInfo;
        string checkDirectory;
        foreach (string directory in directories)
        {
            dateTime = DateTime.MinValue;
            files = Directory.GetFiles(directory, "*", SearchOption.AllDirectories);
            foreach (string file in files)
            {
                fileInfo = new(file);
                if (dateTime > fileInfo.LastWriteTime)
                    continue;
                dateTime = fileInfo.LastWriteTime;
            }
            if (dateTime == DateTime.MinValue)
                continue;
            checkDirectory = Path.Combine(Path.GetDirectoryName(directory) ?? throw new Exception(), dateTime.ToString(dateFormat));
            if (checkDirectory != directory)
            {
                if (Directory.Exists(checkDirectory))
                    continue;
                Directory.Move(directory, checkDirectory);
            }
            Directory.SetLastWriteTime(checkDirectory, dateTime);
        }
    }

    private static void Rename(ILogger<Worker> logger, string sourceDirectory, string searchPattern, string dateFormat)
    {
        string[] directories = Directory.GetDirectories(sourceDirectory, searchPattern);
        logger.LogInformation("directories: {directories}", directories.Length);
        Rename(directories, dateFormat);
    }

    internal static void Rename(ILogger<Worker> logger, List<string> args)
    {
        string dateFormat = args[3];
        string[] searchPatterns = args[2].Split('~');
        string sourceDirectory = Path.GetFullPath(args[0]);
        foreach (string searchPattern in searchPatterns)
            Rename(logger, sourceDirectory, searchPattern, dateFormat);
    }

}