using Adaptation.Shared;
using Adaptation.Shared.Methods;
using log4net;
using System;
using System.Collections.Generic;
using System.Data;
using System.IO;
using System.Linq;
using System.Text.Json;
using System.Text.Json.Serialization;

namespace Adaptation.FileHandlers.csv;

public partial class ProcessData : IProcessData
{

    private readonly List<object> _Details;

    List<object> Shared.Properties.IProcessData.Details => _Details;

    private readonly ILog _Log;

    public ProcessData()
    {
    }

    public ProcessData(IFileRead fileRead, Logistics logistics, List<FileInfo> fileInfoCollection, long tickOffset)
    {
        _Details = new List<object>();
        _Log = LogManager.GetLogger(typeof(ProcessData));
        _ = Parse(fileRead, logistics, fileInfoCollection);
    }

    string IProcessData.GetCurrentReactor(IFileRead fileRead, Logistics logistics, Dictionary<string, string> reactors) => throw new Exception(string.Concat("See ", nameof(Parse)));

    Tuple<string, Test[], JsonElement[], List<FileInfo>> IProcessData.GetResults(IFileRead fileRead, Logistics logistics, List<FileInfo> fileInfoCollection)
    {
        Tuple<string, Test[], JsonElement[], List<FileInfo>> results;
        List<Test> tests = new();
        foreach (object item in _Details)
            tests.Add(Test.SRP2100);
        List<IDescription> descriptions = fileRead.GetDescriptions(fileRead, tests, this);
        if (tests.Count != descriptions.Count)
            throw new Exception();
        for (int i = 0; i < tests.Count; i++)
        {
            if (descriptions[i] is not Description description)
                throw new Exception();
            if (description.Test != (int)tests[i])
                throw new Exception();
        }
        List<Description> fileReadDescriptions = (from l in descriptions select (Description)l).ToList();
        string json = JsonSerializer.Serialize(fileReadDescriptions, fileReadDescriptions.GetType());
        JsonElement[] jsonElements = JsonSerializer.Deserialize<JsonElement[]>(json);
        results = new Tuple<string, Test[], JsonElement[], List<FileInfo>>(logistics.Logistics1[0], tests.ToArray(), jsonElements, fileInfoCollection);
        return results;
    }

    private static void OnlyOnce(string directory)
    {
        CSV csv;
        string json;
        string fileName;
        string innerDirectory;
        string fileNameWithoutExtension;
        foreach (string path in Directory.GetFiles(directory, "*.csv", SearchOption.TopDirectoryOnly))
        {
            csv = CSV.GetCSV(path);
            fileNameWithoutExtension = Path.GetFileNameWithoutExtension(path);
            innerDirectory = Path.Combine(directory, fileNameWithoutExtension);
            _ = Directory.CreateDirectory(innerDirectory);
            fileName = Path.Combine(innerDirectory, $"{fileNameWithoutExtension}.csv");
            File.Move(path, fileName);
            fileName = Path.Combine(innerDirectory, $"{fileNameWithoutExtension}.json");
            json = JsonSerializer.Serialize(csv, new JsonSerializerOptions { WriteIndented = true });
            File.WriteAllText(fileName, json);
        }
        foreach (string path in Directory.GetFiles(directory, "*", SearchOption.AllDirectories))
        {
            innerDirectory = Path.GetDirectoryName(path);
            fileName = Path.Combine(innerDirectory, $"{Path.GetFileName(innerDirectory)}{Path.GetExtension(path)}");
            File.Move(path, fileName);
        }
        foreach (string path in Directory.GetFiles(directory, "*.csv", SearchOption.AllDirectories))
        {
            innerDirectory = Path.GetDirectoryName(path);
            Directory.SetLastWriteTime(innerDirectory, new FileInfo(path).LastWriteTime);
        }
    }

#pragma warning disable IDE0060
    private CSV Parse(IFileRead fileRead, Logistics logistics, List<FileInfo> fileInfoCollection)
#pragma warning restore IDE0060
    {
        CSV result;
        result = CSV.GetCSV(logistics.ReportFullPath);
        string directory = Path.GetDirectoryName(logistics.ReportFullPath);
#if OnlyOnce
        OnlyOnce(directory);
#endif
        string fileName = Path.Combine(directory, $"{Path.GetFileNameWithoutExtension(logistics.ReportFullPath)}.json");
        string json = JsonSerializer.Serialize(result, new JsonSerializerOptions { WriteIndented = true });
        result = JsonSerializer.Deserialize<CSV>(json);
        if (result is null)
            throw new NullReferenceException(nameof(result));
        File.WriteAllText(fileName, json);
#if NotSure
        fileInfoCollection.Add(new(fileName));
#endif
        fileInfoCollection.Add(logistics.FileInfo);
        _Details.Add(fileName);
        return result;
    }

#nullable enable

    internal static List<Description> GetDescriptions(JsonElement[] jsonElements)
    {
        List<Description> results = new();
        Description? description;
        JsonSerializerOptions jsonSerializerOptions = new() { NumberHandling = JsonNumberHandling.AllowReadingFromString | JsonNumberHandling.WriteAsString };
        foreach (JsonElement jsonElement in jsonElements)
        {
            if (jsonElement.ValueKind != JsonValueKind.Object)
                throw new Exception();
            description = JsonSerializer.Deserialize<Description>(jsonElement.ToString(), jsonSerializerOptions);
            if (description is null)
                continue;
            results.Add(description);
        }
        return results;
    }

}