/*
 * Description: The EmployeeController class is a controller for handling requests related to employees.
 *              It provides methods for performing CRUD operations on employee data, such as retrieving 
 *              an employee by email, getting all employees, updating an employee, adding a new employee, and deleting an employee. 
 *              The controller uses the EmployeeViewModel class to manage the data for the employees.
 */

using HelpdeskViewModels;
using Microsoft.AspNetCore.Mvc;
using System.Diagnostics;
using System.Reflection;
namespace CasestudyWebsite.Controllers
{
    [Route("api/[controller]")]
    [ApiController]
    public class EmployeeController : ControllerBase
    {
        [HttpGet("{email}")]
        public async Task<IActionResult> GetByEmail(string email)
        {
            try
            {
                EmployeeViewModel viewmodel = new() { Email = email };
                await viewmodel.GetByEmail();
                return Ok(viewmodel);
            }
            catch (Exception ex)
            {
                Debug.WriteLine("Problem in " + GetType().Name + " " +
                MethodBase.GetCurrentMethod()!.Name + " " + ex.Message);
                return StatusCode(StatusCodes.Status500InternalServerError); // something went wrong
            }
        }
        [HttpGet]
        public async Task<IActionResult> GetAll()
        {
            try
            {
                EmployeeViewModel viewmodel = new();
                List<EmployeeViewModel> allEmployees = await viewmodel.GetAll();
                return Ok(allEmployees);
            }
            catch (Exception ex)
            {
                Debug.WriteLine("Problem in " + GetType().Name + " " +
                MethodBase.GetCurrentMethod()!.Name + " " + ex.Message);
                return StatusCode(StatusCodes.Status500InternalServerError); // something went wrong
            }
        }

        [HttpPut]
        public async Task<ActionResult> Put(EmployeeViewModel viewmodel)
        {
            try
            {
                int retVal = await viewmodel.Update();
                return retVal switch
                {
                    1 => Ok(new { msg = "Employee " + viewmodel.Lastname + " updated!" }),
                    -1 => Ok(new { msg = "Employee " + viewmodel.Lastname + " not updated!" }),
                    -2 => Ok(new { msg = "Data is stale for " + viewmodel.Lastname + ", Employee not updated!" }),
                    _ => Ok(new { msg = "Employee " + viewmodel.Lastname + " not updated!" }),
                };
            }
            catch (Exception ex)
            {
                Debug.WriteLine("Problem in " + GetType().Name + " " +
                MethodBase.GetCurrentMethod()!.Name + " " + ex.Message);
                return StatusCode(StatusCodes.Status500InternalServerError); // something went wrong
            }
        }

        [HttpPost]
        public async Task<ActionResult> Post(EmployeeViewModel viewmodel)
        {
            try
            {
                await viewmodel.Add();
                return viewmodel.Id > 1
                ? Ok(new { msg = "Employee " + viewmodel.Lastname + " added!" })
                : Ok(new { msg = "Employee " + viewmodel.Lastname + " not added!" });
            }
            catch (Exception ex)
            {
                Debug.WriteLine("Problem in " + GetType().Name + " " +
                MethodBase.GetCurrentMethod()!.Name + " " + ex.Message);
                return StatusCode(StatusCodes.Status500InternalServerError); // something went wrong
            }
        }

        [HttpDelete("{id}")]
        public async Task<IActionResult> Delete(int id)
        {
            try
            {
                EmployeeViewModel viewmodel = new() { Id = id };
                return await viewmodel.Delete() == 1
                ? Ok(new { msg = "Employee " + id + " deleted!" })
               : Ok(new { msg = "Employee " + id + " not deleted!" });
            }
            catch (Exception ex)
            {
                Debug.WriteLine("Problem in " + GetType().Name + " " +
                MethodBase.GetCurrentMethod()!.Name + " " + ex.Message);
                return StatusCode(StatusCodes.Status500InternalServerError); // something went wrong
            }
        }


    }
}