using System.Diagnostics;
using FaKrosnoApi.Models;
using Hangfire;
using Hangfire.Storage;
using Microsoft.AspNetCore.Mvc;
using OrdersManagementDataModel.Dtos;
using OrdersManagementDataModel.Services;

namespace FaKrosnoApi.Controllers;

[ApiController]
[Route("api/[controller]")]
public class HangfireJobsController(JobStorage jobStorage, IRecurringJobManager recurringJobManager, ITaskSchedulerService service) : Controller
{
    [HttpGet("GetJobsToRun")]
    public async Task<ActionResult<IEnumerable<JobModel>>> GetJobsToRun()
    {
        IList<JobModel> jobsToRun = new List<JobModel>();

        using (IStorageConnection? connection = jobStorage.GetConnection())
        {
            IList<RecurringJobDto>? recurringJobs = connection.GetRecurringJobs();
            IList<TaskSchedulerDto>? taskSchedulers = (await service.GetTaskSchedulers()).ToList();

            foreach (var recurringJob in recurringJobs)
            {
                TaskSchedulerDto? taskScheduler = taskSchedulers?.FirstOrDefault(ts => ts.Name == recurringJob.Id);
                
                if (taskScheduler != null)
                {
                    jobsToRun.Add(new JobModel(recurringJob.Id, recurringJob.Cron, taskScheduler.Path,
                        recurringJob.LastExecution, recurringJob.NextExecution, recurringJob.Job));
                }
            }
        }

        return Ok(jobsToRun);
    }
    
    [HttpPost("RunJobs")]
    public async Task<IActionResult> RunJobs()
    {
        var jobsToRun = (await GetJobsToRun()).Value?.ToList();

        if (jobsToRun == null || jobsToRun.Count == 0)
        {
            return BadRequest("Nie udało się pobrać zadań do uruchomienia.");
        }

        foreach (var job in jobsToRun)
        {
            if (!string.IsNullOrEmpty(job.Path))
            {
                recurringJobManager.AddOrUpdate(job.JobId, () => RunConsoleApplication(job.Path), job.Cron,
                    new RecurringJobOptions { TimeZone = TimeZoneInfo.Local });
            }
        }

        return Ok("Zadania zostały zaplanowane do uruchamiania zgodnie z ich CRON.");
    }
    
    [HttpPost("AddTask")]
    public async Task<IActionResult> AddTask([FromBody] TaskSchedulerDto taskSchedulerDto)
    {
        var taskScheduler = new OrdersManagementDataModel.Entities.TaskScheduler
        {
            Name = taskSchedulerDto.Name,
            Path = taskSchedulerDto.Path,
            CronOptions = taskSchedulerDto.CronOptions,
            CreateDate = DateTime.UtcNow
        };

        int result = await service.AddTaskScheduler(taskSchedulerDto);

        if (result == 0)
        {
            return BadRequest("Nie udało się dodać zadania.");
        }

        recurringJobManager.AddOrUpdate(taskScheduler.Name, () => RunConsoleApplication(taskScheduler.Path),
            taskScheduler.CronOptions, new RecurringJobOptions { TimeZone = TimeZoneInfo.Local });

        return Ok("Zadanie zostało dodane.");
    }

    [HttpGet("GetTasks")]
    public async Task<ActionResult<IEnumerable<TaskSchedulerDto>>> GetTasks()
    {
        var tasks = await service.GetTaskSchedulers();
        
        // foreach (TaskSchedulerDto taskSchedulerDto in tasks)
        // {
        //     taskSchedulerDto.JobDetails = GetJob(taskSchedulerDto.Name);
        // }
        
        return Ok(tasks);
    }

    private JobData? GetJob(string jobId)
    {
        using IStorageConnection? connection = jobStorage.GetConnection();
        return connection.GetJobData(jobId);
    }

    private void RunConsoleApplication(string pathToApp)
    {
        try
        {
            var process = new Process
            {
                StartInfo = new ProcessStartInfo
                {
                    FileName = pathToApp,
                    UseShellExecute = false,
                    RedirectStandardOutput = true,
                    RedirectStandardError = true,
                    CreateNoWindow = true
                }
            };
            process.Start();
            string output = process.StandardOutput.ReadToEnd();
            string error = process.StandardError.ReadToEnd();
            process.WaitForExit();

            Console.WriteLine($"Output: {output}");
            Console.WriteLine($"Error: {error}");
        }
        catch (Exception ex)
        {
            Console.WriteLine($"Error executing console application: {ex.Message}");
        }
    }
}