using System;
using System.Collections.Generic;
using System.IO;
using Newtonsoft.Json;
using LCU.Library.Internal.FileOperationsModels.Models;
using LCU.Library.Internal.FileOperationsModels.Shared;
using LCU.Library.Internal.LCUServiceFactory.Configurations;
using LCU.Api.Internal.FileOperations.Validations;
namespace LCU.Api.Internal.FileOperations.Services.FileActionServices;

public class DeleteFileService : FileActionService, IFileActionService, IActionService<DeleteFileRequest>
{
	public DeleteFileService(ServicesFactoryConfiguration servicesFactoryConfiguration)
        : base(servicesFactoryConfiguration)
	{
	}

	public RequestResponse ExecuteAction(QueueRequest queueRequest)
    {
        var requestResponse = new RequestResponse();
        try
        {
            var fileRequest = JsonConvert.DeserializeObject<DeleteFileRequest>(queueRequest.Request);
            var requests = BuildListOfRequest(fileRequest);
            requestResponse = FileValidation.ValidateIfAnyRequest(requests, fileRequest.Source, requestResponse);

            foreach (var request in requests)
            {
                var temporaryRequestResponse = PerformRequest(request);
                if (!temporaryRequestResponse.IsSuccessful)
                {
                    requestResponse.IsSuccessful = temporaryRequestResponse.IsSuccessful;
                    requestResponse.MessageStack.AddRange(temporaryRequestResponse.MessageStack);
                }
            }

            requestResponse.ReturnResponse = fileRequest;
            return requestResponse;
        }
        catch (Exception exception)
        {
            return RequestResponseHelper.ExceptionUpdateRequestResponse(requestResponse,
                                                                   queueRequest.FileOperationType,
                                                                   exception.Message);
        }
    }

    public RequestResponse PerformRequest(DeleteFileRequest request)
    {
        return OperationService.PerformOperation(request, IsRequestValid, DeleteFile);
    }

    private void DeleteFile(DeleteFileRequest request)
    {
        try
        {
            File.Delete(request.Source);
        }
        catch (Exception exception)
        {
            throw new Exception($"Exception thrown while trying to ExecuteRequestAction. " +
                                $"Request: {JsonConvert.SerializeObject(request)}" +
                                $"ExceptionMessage: {exception.Message}");
        }
    }

    public RequestResponse PreQueueValidation(DeleteFileRequest originalRequest)
    {
        var requestResponse = new RequestResponse();
        var requestList = BuildListOfRequest(originalRequest);
        requestResponse = FileValidation.ValidateIfAnyRequest(requestList, originalRequest.SourcePath, requestResponse);
        foreach (var request in requestList)
        {
            requestResponse = IsRequestValid(request, requestResponse);
        }

        return requestResponse;
    }

    public List<DeleteFileRequest> BuildListOfRequest(DeleteFileRequest originalRequest)
    {
        var nameList = RegexNameHandler.BuildFileList(originalRequest.SourcePath,
                                                      originalRequest.FinalSourceFile,
                                                      originalRequest.FileNameSetting);
        var requests = new List<DeleteFileRequest>();

        foreach (var name in nameList)
        {
            var newRequest = Clone.DeepClone(originalRequest);
            newRequest.SourceFile = name;

            requests.Add(newRequest);
        }

        return requests;
    }

    public RequestResponse IsRequestValid(DeleteFileRequest fileRequest, RequestResponse requestResponse)
    {
        if (fileRequest.SucceedOnError)
        {
            return requestResponse;
        }

        requestResponse = FileValidation.ValidateSourceNotEmpty(fileRequest.Source, requestResponse);
        requestResponse = FileValidation.ValidateFileExists(fileRequest.Source, requestResponse);
        return requestResponse;
    }
}