using System.Collections.Generic;
using Microsoft.Data.SqlClient;
using LCU.Library.Internal.DispatcherModels.Enums;
using LCU.Api.Internal.DispatcherLib.Repositories;
namespace LCU.Api.Internal.Dispatcher.Services;

public class WorkItemExecutionService : IWorkItemExecutionService
{
    private readonly IUnitOfWork _unitOfWork;
    private readonly IWorkItemExecutionRepository _workItemExecutionRepository;

    public WorkItemExecutionService(IUnitOfWork unitOfWork,
                                    IWorkItemExecutionRepository workItemExecutionRepository)
    {
        _unitOfWork = unitOfWork;
        _workItemExecutionRepository = workItemExecutionRepository;
    }

    public async Task<WorkItemExecution> GetByIdAsync(int id)
    {
        WorkItemExecution workItemExecution = null;
        try
        {
            workItemExecution = await _workItemExecutionRepository.FindByIdAsync(id);
            ArgumentNullException.ThrowIfNull(workItemExecution);
        }
        catch (Exception exception)
        {
            Log.Error(exception, $"Failure retrieving dispatcher WorkItemExecution with id {id}.");
            throw new ServiceException($"Failure retrieving dispatcher WorkItemExecution with id {id}.");
        }

        return workItemExecution;
    }

    public async Task<WorkItemExecution> UpdateCompleteWorkItemExecution(WorkItemExecution workItemExecution, StatusType finalStatus)
    {
        workItemExecution = WorkItemExecution.SetAsFinal(workItemExecution, finalStatus);
        var updatedFailedWorkItem = await UpdateAsync(workItemExecution);
        return updatedFailedWorkItem;
    }

    public async Task<WorkItemExecution> UpdateCompleteWorkItemExecutionWithoutSave(WorkItemExecution workItemExecution, StatusType finalStatus)
    {
        workItemExecution = WorkItemExecution.SetAsFinal(workItemExecution, finalStatus);
        var updatedFailedWorkItem = await UpdateAsyncWithoutSave(workItemExecution);
        return updatedFailedWorkItem;
    }

    public async Task<WorkItemExecution> UpdateProcessingWorkItemExecution(WorkItemExecution workItemExecution)
    {
        workItemExecution.Status = StatusType.Processing;
        return await UpdateAsync(workItemExecution);
    }
    public async Task<WorkItemExecution> UpdateFailedWorkItemExecution(WorkItemExecution workItemExecution)
    {
        workItemExecution.Status = StatusType.Failed;
        return await UpdateAsync(workItemExecution);
    }

    public async Task<WorkItemExecution> UpdateAsync(WorkItemExecution workItemExecution)
    {
        try
        {
            var updatedWorkItemExecution = await UpdateAsyncWithoutSave(workItemExecution);
            await _unitOfWork.CompleteAsync();

            return updatedWorkItemExecution;
        }
        catch (SqlException sqlException)
        {
            Log.Error(sqlException, $"SQL Failure updating dispatcher WorkItemExecution with id {workItemExecution.WorkItemId}");
            throw new ServiceException($"SQL Failure updating dispatcher WorkItemExecution with id {workItemExecution.WorkItemId}");
        }
        catch (Exception exception)
        {
            Log.Error(exception, $"Failure updating dispatcher WorkItemExecution with id {workItemExecution.WorkItemId}");
            throw new ServiceException($"Failure updating dispatcher WorkItemExecution with id {workItemExecution.WorkItemId}");
        }
    }

    public async Task<WorkItemExecution> UpdateAsyncWithoutSave(WorkItemExecution workItemExecution)
    {
        try
        {
            _workItemExecutionRepository.Update(workItemExecution);

            return workItemExecution;
        }
        catch (SqlException sqlException)
        {
            Log.Error(sqlException, $"SQL Failure updating dispatcher WorkItemExecution with id {workItemExecution.WorkItemId}");
            throw new ServiceException($"SQL Failure updating dispatcher WorkItemExecution with id {workItemExecution.WorkItemId}");
        }
        catch (Exception exception)
        {
            Log.Error(exception, $"Failure updating dispatcher WorkItemExecution with id {workItemExecution.WorkItemId}");
            throw new ServiceException($"Failure updating dispatcher WorkItemExecution with id {workItemExecution.WorkItemId}");
        }
    }

    public async Task<WorkItemExecution> CreateWorkItemExecution(int workItemId)
    {
        var newWorkItemExecution = new WorkItemExecution(workItemId);
        return await SaveAsync(newWorkItemExecution);
    }

    public async Task<WorkItemExecution> SaveAsync(WorkItemExecution workItemExecution)
    {
        try
        {
            var result = await _workItemExecutionRepository.AddAsync(workItemExecution);
            await _unitOfWork.CompleteAsync();
            return result;
        }
        catch (Exception exception)
        {
            Log.Error(exception, "Failure saving dispatcher WorkItemExecution", workItemExecution);
            throw new ServiceException("Failure saving dispatcher WorkItemExecution");
        }
    }

    public async Task<IEnumerable<WorkItemExecution>> GetAllUnFinishedWorkItemExecutions(int workItemId)
    {
        try
        {
            var result = await _workItemExecutionRepository.FindUnFinishedWorkItemExecutions(workItemId);
            return result;
        }
        catch (Exception exception)
        {
            Log.Error(exception, $"Failure retrieving dispatcher WorkItemExecutions with id {workItemId}.");
            throw new ServiceException($"Failure retrieving dispatcher WorkItemExecutions with id {workItemId}.");
        }
    }

    public async Task<IEnumerable<WorkItemExecution>> GetAllByWorkItemId(int workItemId)
    {
        try
        {
            var result = await _workItemExecutionRepository.FindAllByWorkItemId(workItemId);
            return result;
        }
        catch (Exception exception)
        {
            Log.Error(exception, $"Failure retrieving dispatcher WorkItemExecutions with WorkItemId {workItemId}.");
            throw new ServiceException($"Failure retrieving dispatcher WorkItemExecutions with WorkItemId {workItemId}.");
        }
    }
}