using Step.Database.Controllers;
using Step.Model.DatabaseModels;
using Step.Model.DTOModels.MaintenanceModels;
using Step.NC;
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Security.Claims;
using System.Web.Http;
using static CMS_CORE_Library.DataStructures;
using static Step.Model.Constants;
using static Step.Config.ServerConfig;

namespace Step.Controllers.WebApi
{
    [RoutePrefix("api/maintenance_manager")]
    public class MaintenanceController : ApiController
    {
        [Route("maintenances"), HttpGet]
        public IHttpActionResult GetMaintenances()
        {
            using (NcHandler ncHandler = new NcHandler())
            {
                ncHandler.Connect();
                CmsError cmsError = ncHandler.GetMaintenances(out List<DTOMaintenanceModel> maintenances);
                if (cmsError.IsError())
                    return BadRequest(cmsError.localizationKey);

                return Ok(maintenances);
            }
        }

        [Route("maintenance"), HttpPost]

        [WebApiAuthorize(FunctionAccess = FUNCTIONALITY_NAMES.USER_FUNCTIONS, Action = ACTIONS.WRITE)]
        public IHttpActionResult AddMaintenance([Required]DTONewMaintenanceModel newMaint)
        {
            if (!ModelState.IsValid)
                return BadRequest(ModelState);

            var identity = User.Identity as ClaimsIdentity;
            // Find user id from the bearer token
            var userId = identity.Claims.Where(c => c.Type == USER_ID_KEY).FirstOrDefault();
            if (userId == null)
                return Unauthorized();
            
            using (MaintenancesController maintenancesController = new MaintenancesController())
            {
                MaintenanceModel dbMaint = maintenancesController.Create(newMaint, Convert.ToInt32(userId.Value));

                using (NcHandler ncHandler = new NcHandler())
                {
                    ncHandler.Connect();
                    CmsError cmsError = ncHandler.GetMaintenances(out List<DTOMaintenanceModel> maintenances);
                    if (cmsError.IsError())
                        return BadRequest(cmsError.localizationKey);
                    
                    return Ok(maintenances.Where(x => x.Id == dbMaint.MaintenanceId).FirstOrDefault());
                }
            }
        }

        [Route("maintenance/{maintenanceId:int}"), HttpPut]

        [WebApiAuthorize(FunctionAccess = FUNCTIONALITY_NAMES.USER_FUNCTIONS, Action = ACTIONS.WRITE)]
        public IHttpActionResult AddMaintenance(int maintenanceId, [Required]DTOUpdateMaintenanceModel newMaint)
        {
            if (!ModelState.IsValid)
                return BadRequest(ModelState);

            var identity = User.Identity as ClaimsIdentity;
            // Find user id from the bearer token
            var userId = identity.Claims.Where(c => c.Type == USER_ID_KEY).FirstOrDefault();
            if (userId == null)
                return Unauthorized();

            using (MaintenancesController maintenancesController = new MaintenancesController())
            {
                // Check if user can update
                MaintenanceModel dbMaint = maintenancesController.FindById(maintenanceId);
                if (dbMaint == null)
                    return NotFound();
                if (dbMaint.UserId == null)
                    return Unauthorized();

                using (MachinesUsersController machineUsersController = new MachinesUsersController())
                {
                    // Check if user can edit the maintenance
                    int comparision = machineUsersController.CompareUsersRole(Convert.ToInt32(userId.Value), dbMaint.UserId.Value, MachineConfig.MachineId);
                    if (comparision < 0)
                        return Unauthorized();
                }

                // Update data
                maintenancesController.Update(maintenanceId, newMaint);
                using (NcHandler ncHandler = new NcHandler())
                {
                    ncHandler.Connect();
                    CmsError cmsError = ncHandler.GetMaintenances(out List<DTOMaintenanceModel> maintenances);
                    if (cmsError.IsError())
                        return BadRequest(cmsError.localizationKey);

                    return Ok(maintenances.Where(x => x.Id == dbMaint.MaintenanceId).FirstOrDefault());
                }
            }
        }
    }
}