using Adaptation.Eaf.Management.ConfigurationData.CellAutomation;
using Adaptation.Ifx.Eaf.EquipmentConnector.File.Configuration;
using Adaptation.Shared;
using Adaptation.Shared.Duplicator;
using Adaptation.Shared.Methods;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Text.Json;
using System.Threading;

namespace Adaptation.FileHandlers.MoveMatchingFiles;

public class FileRead : Shared.FileRead, IFileRead
{

    public FileRead(ISMTP smtp, Dictionary<string, string> fileParameter, string cellInstanceName, string cellInstanceConnectionName, FileConnectorConfiguration fileConnectorConfiguration, string equipmentTypeName, string parameterizedModelObjectDefinitionType, IList<ModelObjectParameterDefinition> modelObjectParameters, string equipmentDictionaryName, Dictionary<string, List<long>> dummyRuns, Dictionary<long, List<string>> staticRuns, bool useCyclicalForDescription, bool isEAFHosted) :
        base(new Description(), false, smtp, fileParameter, cellInstanceName, cellInstanceConnectionName, fileConnectorConfiguration, equipmentTypeName, parameterizedModelObjectDefinitionType, modelObjectParameters, equipmentDictionaryName, dummyRuns, staticRuns, useCyclicalForDescription, isEAFHosted)
    {
        _MinFileLength = 10;
        _NullData = string.Empty;
        _Logistics = new(this);
        if (_FileParameter is null)
            throw new Exception(cellInstanceConnectionName);
        if (_ModelObjectParameterDefinitions is null)
            throw new Exception(cellInstanceConnectionName);
        if (!_IsDuplicator)
            throw new Exception(cellInstanceConnectionName);
    }

    void IFileRead.Move(Tuple<string, Test[], JsonElement[], List<FileInfo>> extractResults, Exception exception)
    {
        bool isErrorFile = exception is not null;
        if (!isErrorFile && !string.IsNullOrEmpty(_Logistics.ReportFullPath))
        {
            FileInfo fileInfo = new(_Logistics.ReportFullPath);
            if (fileInfo.Exists && fileInfo.LastWriteTime < fileInfo.CreationTime)
                File.SetLastWriteTime(_Logistics.ReportFullPath, fileInfo.CreationTime);
        }
        Move(extractResults);
    }

    void IFileRead.WaitForThread() => WaitForThread(thread: null, threadExceptions: null);

    string IFileRead.GetEventDescription()
    {
        string result = _Description.GetEventDescription();
        return result;
    }

    List<string> IFileRead.GetHeaderNames()
    {
        List<string> results = _Description.GetHeaderNames();
        return results;
    }

    string[] IFileRead.Move(Tuple<string, Test[], JsonElement[], List<FileInfo>> extractResults, string to, string from, string resolvedFileLocation, Exception exception)
    {
        string[] results = Move(extractResults, to, from, resolvedFileLocation, exception);
        return results;
    }

    JsonProperty[] IFileRead.GetDefault()
    {
        JsonProperty[] results = _Description.GetDefault(this, _Logistics);
        return results;
    }

    Dictionary<string, string> IFileRead.GetDisplayNamesJsonElement()
    {
        Dictionary<string, string> results = _Description.GetDisplayNamesJsonElement(this);
        return results;
    }

    List<IDescription> IFileRead.GetDescriptions(IFileRead fileRead, List<Test> tests, IProcessData processData)
    {
        List<IDescription> results = _Description.GetDescriptions(fileRead, _Logistics, tests, processData);
        return results;
    }

    Tuple<string, Test[], JsonElement[], List<FileInfo>> IFileRead.GetExtractResult(string reportFullPath, string eventName)
    {
        Tuple<string, Test[], JsonElement[], List<FileInfo>> results;
        if (string.IsNullOrEmpty(eventName))
            throw new Exception();
        _ReportFullPath = reportFullPath;
        DateTime dateTime = DateTime.Now;
        results = GetExtractResult(reportFullPath, dateTime);
        if (results.Item3 is null)
            results = new Tuple<string, Test[], JsonElement[], List<FileInfo>>(results.Item1, Array.Empty<Test>(), JsonSerializer.Deserialize<JsonElement[]>("[]"), results.Item4);
        if (results.Item3.Length > 0 && _IsEAFHosted)
            WritePDSF(this, results.Item3);
        UpdateLastTicksDuration(DateTime.Now.Ticks - dateTime.Ticks);
        return results;
    }

    Tuple<string, Test[], JsonElement[], List<FileInfo>> IFileRead.ReExtract()
    {
        Tuple<string, Test[], JsonElement[], List<FileInfo>> results;
        List<string> headerNames = _Description.GetHeaderNames();
        Dictionary<string, string> keyValuePairs = _Description.GetDisplayNamesJsonElement(this);
        results = ReExtract(this, headerNames, keyValuePairs);
        return results;
    }

    private static List<string> GetSearchDirectories(int numberLength, string parentDirectory)
    {
        List<string> results = new();
        string[] directories = Directory.GetDirectories(parentDirectory, "*", SearchOption.TopDirectoryOnly);
        foreach (string directory in directories)
        {
            if (Path.GetFileName(directory).Length != numberLength)
                continue;
            results.Add(directory);
        }
        results.Sort();
        return results;
    }

    private List<string> GetMatchingFiles(long ticks, string reportFullPath, List<string> searchDirectories)
    {
        List<string> results = new();
        string[] found;
        string fileName = Path.GetFileName(reportFullPath);
        foreach (string searchDirectory in searchDirectories)
        {
            for (int i = 0; i < int.MaxValue; i++)
            {
                found = Directory.GetFiles(searchDirectory, fileName, SearchOption.AllDirectories);
                if (found.Any())
                {
                    results.AddRange(found);
                    break;
                }
                if (new TimeSpan(DateTime.Now.Ticks - ticks).TotalSeconds > _BreakAfterSeconds)
                    break;
            }
        }
        return results;
    }

    private static List<(string matchingFile, string checkFile)> GetCollection(int numberLength, string parentDirectory, List<string> matchingFiles)
    {
        List<(string matchingFile, string checkFile)> results = new();
        string checkFile;
        int parentDirectoryLength = parentDirectory.Length;
        foreach (string matchingFile in matchingFiles)
        {
            checkFile = $"{matchingFile[0]}{matchingFile.Substring(parentDirectoryLength + numberLength + 1)}";
            results.Add(new(matchingFile, checkFile));
        }
        return results;
    }

    private static List<(string, string, string, string, string)> GetCollection(List<(string matchingFile, string checkFile)> collection)
    {
        List<(string, string, string, string, string)> results = new();
        string errFile;
        string checkDirectory;
        string noWaitDirectory;
        foreach ((string matchingFile, string checkFile) in collection)
        {
            errFile = string.Concat(checkFile, ".err");
            checkDirectory = Path.GetDirectoryName(checkFile);
            if (!Directory.Exists(checkDirectory))
                _ = Directory.CreateDirectory(checkDirectory);
            noWaitDirectory = Path.Combine(checkDirectory, "NoWaitDirectory");
            results.Add(new(matchingFile, checkFile, errFile, checkDirectory, noWaitDirectory));
        }
        return results;
    }

    private void MoveCollection(DateTime dateTime, List<(string matchingFile, string checkFile)> collection)
    {
        long preWait;
        List<(string checkFile, string errFile)> postCollection = new();
        foreach ((string matchingFile, string checkFile, string errFile, string checkDirectory, string noWaitDirectory) in GetCollection(collection))
        {
            File.Move(matchingFile, checkFile);
            if (Directory.Exists(noWaitDirectory))
            {
                postCollection.Add(new(checkFile, errFile));
                continue;
            }
            if (_FileConnectorConfiguration?.FileHandleWaitTime is null)
                preWait = DateTime.Now.AddMilliseconds(1234).Ticks;
            else
                preWait = DateTime.Now.AddMilliseconds(_FileConnectorConfiguration.FileHandleWaitTime.Value).Ticks;
            for (short i = 0; i < short.MaxValue; i++)
            {
                if (DateTime.Now.Ticks > preWait)
                    break;
                Thread.Sleep(500);
            }
            for (int i = 0; i < int.MaxValue; i++)
            {
                if (File.Exists(errFile))
                    throw new Exception(File.ReadAllText(errFile));
                if (!File.Exists(checkFile))
                    break;
                if (new TimeSpan(DateTime.Now.Ticks - dateTime.Ticks).TotalSeconds > _BreakAfterSeconds)
                    throw new Exception($"Not all files were consumed after {_BreakAfterSeconds} second(s)!");
                Thread.Sleep(500);
            }
        }
        if (postCollection.Any())
        {
            Thread.Sleep(500);
            StringBuilder stringBuilder = new();
            foreach ((string checkFile, string errFile) in postCollection)
            {
                if (File.Exists(errFile))
                    _ = stringBuilder.AppendLine(File.ReadAllText(errFile));
                if (File.Exists(checkFile))
                    _ = stringBuilder.AppendLine($"<{checkFile}> was not consumed by the end!");
            }
            if (stringBuilder.Length > 0)
                throw new Exception(stringBuilder.ToString());
        }
    }

    private static void CreatePointerFile(int numberLength, string parentDirectory, List<string> matchingFiles)
    {
#nullable enable
        string checkFile;
        string writeFile;
        string? directoryName;
        int parentDirectoryLength = parentDirectory.Length;
        foreach (string matchingFile in matchingFiles)
        {
            directoryName = Path.GetDirectoryName(matchingFile);
            if (directoryName is null)
                continue;
            checkFile = $"{matchingFile[0]}{directoryName.Substring(parentDirectoryLength + numberLength + 1)}";
            writeFile = Path.Combine(parentDirectory, $"{directoryName.Substring(parentDirectory.Length + 1, numberLength)}.txt");
            if (File.Exists(writeFile))
                continue;
            File.AppendAllLines(writeFile, new string[] { parentDirectory, matchingFile, directoryName, checkFile });
        }
#nullable disable
    }

    private Tuple<string, Test[], JsonElement[], List<FileInfo>> GetExtractResult(string reportFullPath, DateTime dateTime)
    {
        Tuple<string, Test[], JsonElement[], List<FileInfo>> results = new(string.Empty, null, null, new List<FileInfo>());
        Tuple<string, string[], string[]> pdsf = ProcessDataStandardFormat.GetLogisticsColumnsAndBody(reportFullPath);
        _Logistics = new Logistics(reportFullPath, pdsf.Item1);
        SetFileParameterLotIDToLogisticsMID();
        int numberLength = 2;
        long ticks = dateTime.Ticks;
        string parentParentDirectory = GetParentParent(reportFullPath);
        List<string> searchDirectories = GetSearchDirectories(numberLength, parentParentDirectory);
        List<string> matchingFiles = GetMatchingFiles(ticks, reportFullPath, searchDirectories);
        if (matchingFiles.Count != searchDirectories.Count)
            throw new Exception($"Didn't find all files after {_BreakAfterSeconds} second(s)!");
        try
        { CreatePointerFile(numberLength, parentParentDirectory, matchingFiles); }
        catch (Exception) { }
        List<(string matchingFile, string checkFile)> collection = GetCollection(numberLength, parentParentDirectory, matchingFiles);
        MoveCollection(dateTime, collection);
        return results;
    }

}