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 FFMpegCore;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Reflection;
using System.Text.Json;
using System.Threading;

namespace Adaptation.FileHandlers.DownloadJpegFile;

public class FileRead : Shared.FileRead, IFileRead
{

    private readonly Timer _Timer;
    private readonly string _FFmpegFileName;
    private readonly string _StaticFileServer;

    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, bool useCyclicalForDescription, bool isEAFHosted) :
        base(new Description(), false, smtp, fileParameter, cellInstanceName, cellInstanceConnectionName, fileConnectorConfiguration, equipmentTypeName, parameterizedModelObjectDefinitionType, modelObjectParameters, equipmentDictionaryName, dummyRuns, useCyclicalForDescription, isEAFHosted)
    {
        _MinFileLength = 10;
        _NullData = string.Empty;
        _Logistics = new Logistics(this);
        if (_FileParameter is null)
            throw new Exception(cellInstanceConnectionName);
        if (_ModelObjectParameterDefinitions is null)
            throw new Exception(cellInstanceConnectionName);
        if (_IsDuplicator)
            throw new Exception(cellInstanceConnectionName);
        _StaticFileServer = GetPropertyValue(cellInstanceConnectionName, modelObjectParameters, string.Concat("CellInstance.", cellInstanceName, ".StaticFileServer"));
        string entryAssemblyLocationDirectory = Path.GetDirectoryName(Assembly.GetEntryAssembly().Location);
        string ffmpegFileName = Path.Combine(entryAssemblyLocationDirectory, "ffmpeg.dll");
        _FFmpegFileName = Path.Combine(entryAssemblyLocationDirectory, "ffmpeg.exe");
        if (File.Exists(ffmpegFileName) && !File.Exists(_FFmpegFileName))
            File.Copy(ffmpegFileName, _FFmpegFileName);
        if (!Debugger.IsAttached && fileConnectorConfiguration.PreProcessingMode != FileConnectorConfiguration.PreProcessingModeEnum.Process)
            _Timer = new Timer(Callback, null, (int)(fileConnectorConfiguration.FileScanningIntervalInSeconds * 1000), Timeout.Infinite);
        else
        {
            _Timer = new Timer(Callback, null, Timeout.Infinite, Timeout.Infinite);
            Callback(null);
        }
    }

    void IFileRead.Move(Tuple<string, Test[], JsonElement[], List<FileInfo>> extractResults, Exception exception) => Move(extractResults, exception);

    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;
    }

    void IFileRead.CheckTests(Test[] tests, bool extra) => throw new Exception(string.Concat("Not ", nameof(_IsDuplicator)));

    private Tuple<string, Test[], JsonElement[], List<FileInfo>> GetExtractResult(string reportFullPath, DateTime dateTime)
    {
        if (reportFullPath is null)
        { }
        if (dateTime == DateTime.MinValue)
        { }
        throw new Exception(string.Concat("See ", nameof(Callback)));
    }

    private void DownloadJpegFileSynchronously()
    {
        if (string.IsNullOrEmpty(_StaticFileServer))
            throw new Exception();
        string fileName = $"{_CellInstanceName}_{DateTime.Now.Ticks}{_FileConnectorConfiguration.TargetFileName}";
        string destFileName = Path.Combine(_FileConnectorConfiguration.TargetFileLocation, fileName);
        string sourceFileName = Path.Combine(_FileConnectorConfiguration.SourceFileLocation, fileName);
        if (!File.Exists(_FFmpegFileName))
            File.WriteAllText(Path.ChangeExtension(destFileName, ".err"), $"<{_FFmpegFileName}> doesn't exits!");
        else
        {
            Uri uri = new(string.Concat("rtsp://", _StaticFileServer, '/', _FileConnectorConfiguration.SourceDirectoryCloaking));
            _ = FFMpegArguments
                .FromUrlInput(uri, arg => arg.WithCustomArgument("-stimeout 3000"))
                .OutputToFile(sourceFileName)
                .ProcessSynchronously(throwOnError: false);
            File.Move(sourceFileName, destFileName);
        }
    }

    private void Callback(object state)
    {
        try
        {
            if (_IsEAFHosted)
                DownloadJpegFileSynchronously();
        }
        catch (Exception exception)
        {
            string subject = string.Concat("Exception:", _CellInstanceConnectionName);
            string body = string.Concat(exception.Message, Environment.NewLine, Environment.NewLine, exception.StackTrace);
            try
            { _SMTP.SendHighPriorityEmailMessage(subject, body); }
            catch (Exception) { }
        }
        try
        {
            TimeSpan timeSpan = new(DateTime.Now.AddSeconds(_FileConnectorConfiguration.FileScanningIntervalInSeconds.Value).Ticks - DateTime.Now.Ticks);
            _ = _Timer.Change((long)timeSpan.TotalMilliseconds, Timeout.Infinite);
        }
        catch (Exception exception)
        {
            string subject = string.Concat("Exception:", _CellInstanceConnectionName);
            string body = string.Concat(exception.Message, Environment.NewLine, Environment.NewLine, exception.StackTrace);
            try
            { _SMTP.SendHighPriorityEmailMessage(subject, body); }
            catch (Exception) { }
        }
    }

}