using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Logging;
using ShellProgressBar;
using View_by_Distance.Metadata.Models;
using View_by_Distance.Rename.Models;
using View_by_Distance.Shared.Models;
using View_by_Distance.Shared.Models.Stateless.Methods;

namespace View_by_Distance.Rename;

public class Rename
{

    private readonly AppSettings _AppSettings;
    private readonly Configuration _Configuration;
    private readonly IConfigurationRoot _ConfigurationRoot;
    private readonly MetadataConfiguration _MetadataConfiguration;

    public Rename(List<string> args, ILogger<Program>? logger, IConfigurationRoot configurationRoot, AppSettings appSettings, bool isSilent, IConsole console)
    {
        if (isSilent)
        { }
        if (args is null)
            throw new NullReferenceException(nameof(args));
        if (console is null)
            throw new NullReferenceException(nameof(console));
        _AppSettings = appSettings;
        long ticks = DateTime.Now.Ticks;
        _ConfigurationRoot = configurationRoot;
        MetadataConfiguration metadataConfiguration = Metadata.Models.Binder.Configuration.Get(configurationRoot);
        Configuration configuration = Models.Binder.Configuration.Get(configurationRoot, metadataConfiguration);
        _MetadataConfiguration = metadataConfiguration;
        _Configuration = configuration;
        DirectoryInfo directoryInfo = new(Path.GetFullPath(metadataConfiguration.RootDirectory));
        logger?.LogInformation("{RootDirectory}", directoryInfo.FullName);
        MetadataConfiguration.Verify(metadataConfiguration, requireExist: false);
        Verify();
        List<string> linesB = RenameFilesInDirectories(logger, ticks, directoryInfo);
        if (linesB.Count != 0)
        {
            File.WriteAllLines($"D:/Tmp/Phares/{DateTime.Now.Ticks}.tsv", linesB);
            _ = IPath.DeleteEmptyDirectories(directoryInfo.FullName);
        }
    }

    private void Verify()
    {
        if (_AppSettings is null)
            throw new NullReferenceException(nameof(_AppSettings));
        if (_Configuration is null)
            throw new NullReferenceException(nameof(_Configuration));
        if (_ConfigurationRoot is null)
            throw new NullReferenceException(nameof(_ConfigurationRoot));
        if (_MetadataConfiguration is null)
            throw new NullReferenceException(nameof(_MetadataConfiguration));
    }

    private bool GetRunToDoCollectionFirst(long ticks, DirectoryInfo directoryInfo)
    {
        bool result = false;
        string[] directories;
        string seasonDirectory;
        DateTime dateTime = new(ticks);
        (int season, string seasonName) = IDate.GetSeason(dateTime.DayOfYear);
        string eDistanceContentDirectory = IResult.GetResultsDateGroupDirectory(_MetadataConfiguration, nameof(A_Metadata), _MetadataConfiguration.ResultContent);
        FileSystemInfo fileSystemInfo = new DirectoryInfo(eDistanceContentDirectory);
        string[] checkDirectories =
        [
            Path.Combine(directoryInfo.FullName, "Ancestry"),
            Path.Combine(directoryInfo.FullName, "Facebook"),
            Path.Combine(directoryInfo.FullName, "LinkedIn"),
            directoryInfo.FullName,
        ];
        foreach (string checkDirectory in checkDirectories)
        {
            if (checkDirectory == directoryInfo.FullName)
                seasonDirectory = Path.Combine(checkDirectory, $"{dateTime.Year}.{season} {seasonName}");
            else
                seasonDirectory = Path.Combine(checkDirectory, $"{dateTime.Year}.{season} {seasonName} {Path.GetFileName(checkDirectory)}");
            if (!Directory.Exists(seasonDirectory))
                _ = Directory.CreateDirectory(seasonDirectory);
            if (result)
                continue;
            directories = Directory.GetDirectories(checkDirectory, "*", SearchOption.TopDirectoryOnly);
            foreach (string directory in directories)
            {
                if (new DirectoryInfo(directory).LastWriteTime > fileSystemInfo.LastWriteTime)
                {
                    result = true;
                    break;
                }
            }
        }
        return result;
    }

    private List<string> RenameFilesInDirectories(ILogger? logger, long ticks, DirectoryInfo directoryInfo)
    {
        List<string> old = [];
        List<ExifDirectory> exifDirectories = [];
        bool runToDoCollectionFirst = GetRunToDoCollectionFirst(ticks, directoryInfo);
        IEnumerable<string> files = Directory.EnumerateFiles(directoryInfo.FullName, "*", SearchOption.AllDirectories);
        A_Metadata metadata = new(_MetadataConfiguration, _Configuration.ForceMetadataLastWriteTimeToCreationTime, _Configuration.PropertiesChangedForMetadata);
        if (runToDoCollectionFirst)
        {
            foreach (string file in files)
            {
                NameWithoutExtension nameWithoutExtension = IId.GetNameWithoutExtension(_MetadataConfiguration, file);
                exifDirectories.Add(metadata.GetMetadataCollection(_MetadataConfiguration, file, nameWithoutExtension));
                if (nameWithoutExtension.Id is null || (!nameWithoutExtension.IsIdFormat && !nameWithoutExtension.IsPaddedIdFormat))
                    ;
            }
        }
        else
        {
            ParallelOptions parallelOptions = new() { MaxDegreeOfParallelism = _AppSettings.MaxDegreeOfParallelism };
            ProgressBar progressBar = new(123000, "EnumerateFiles load", new ProgressBarOptions() { ProgressCharacter = '─', ProgressBarOnBottom = true, DisableBottomPercentage = true });
            files.AsParallel().ForAll(A_Metadata.GetResultCollection(_MetadataConfiguration, metadata, exifDirectories, () => progressBar.Tick()));
            if (progressBar.CurrentTick != exifDirectories.Count)
                throw new NotSupportedException();
        }
        return old;
    }

}