<?php

namespace App\Models\PatVisit;
use App\Models\BaseModel;
use App\Models\CounterModel;
use App\Models\PatVisit\PatDiagModel;
use App\Models\PatVisit\PatVisitADTModel;

class PatVisitModel extends BaseModel {
	protected $table      = 'patvisit';
	protected $primaryKey = 'InternalPVID';
	protected $allowedFields = ['PVID', 'InternalPID', 'EpisodeID', 'CreateDate', 'EndDate', 'ArchivedDate', 'DelDate'];
  
  protected $useTimestamps = true;
  protected $createdField = 'CreateDate';
  protected $updatedField = '';
	protected $useSoftDeletes = true;
	protected $deletedField = 'EndDate';

	protected $visnum_prefix = "DV";

	public function show($PVID) {
		$rows = $this->select("*, patvisit.CreateDate as PVCreateDate, patdiag.CreateDate as PDCreateDate, patvisitadt.CreateDate as PVACreateDate")
			->join('patdiag', 'patdiag.InternalPVID=patvisit.InternalPVID and patdiag.DelDate is null', 'left')
			->join('patvisitadt', 'patvisitadt.InternalPVID=patvisit.InternalPVID', 'left')
			->where('patvisit.PVID',$PVID)->findAll();
		return $rows;
	}

	public function showByPatient($InternalPID) {
		$rows = $this->select("*, patvisit.CreateDate as PVCreateDate, patdiag.CreateDate as PDCreateDate, patvisitadt.CreateDate as PVACreateDate")
			->join('patdiag', 'patdiag.InternalPVID=patvisit.InternalPVID and patdiag.DelDate is null', 'left')
			->join('patvisitadt', 'patvisitadt.InternalPVID=patvisit.InternalPVID', 'left')
			->join('location', 'location.LocationID=patvisitadt.LocationID', 'left')
			->where('patvisit.InternalPID',$InternalPID)->findAll();
		return $rows;
	}

	public function createPatVisit($input) {
		$db = $this->db;
    $modelPD = new PatDiagModel();
    $modelPVA = new PatVisitADTModel();
		$db->transBegin();
		try{
			
			if (!isset($input['PVID']) || $input['PVID']=='') {
				$modelCounter = new CounterModel();
        $input['PVID'] = $this->visnum_prefix .$modelCounter->use(2);
			}
			
			$InternalPVID = $this->insert($input, true);
			if($InternalPVID === false) { throw new \Exception("Failed to insert main PatVisit record."); }
			if( !empty($input['PatDiag']) && ( !empty($input['PatDiag']['DiagCode']) || !empty($input['PatDiag']['Diagnosis']) ) ) { 
				$input['PatDiag']['InternalPVID'] = $InternalPVID;
				$tmp = $modelPD->insert($input['PatDiag']);
				if ($tmp === false) { throw new \Exception("Failed to insert PatDiag record."); }
			}
			if( !empty($input['PatVisitADT']) ) {
				$input['PatVisitADT']['InternalPVID'] = $InternalPVID;
				$tmp = $modelPVA->insert($input['PatVisitADT']); 
				if ($tmp === false) {
					throw new \Exception("Failed to insert PatVisitADT record.");
				}
			}
			
      if ($db->transStatus() === FALSE) {
				$db->transRollback();
				return false;
			} else {
				$db->transCommit();
				$data = [ "PVID" => $input['PVID'], "InternalPVID" => $InternalPVID ];
				return $data;
			}
    } catch (\Exception $e) {
      $db->transRollback();
      throw $e; 
    }
	}

	public function updatePatVisit($input) {
		$InternalPVID = $input['InternalPVID'];
		$modelPD = new PatDiagModel();
    $modelPVA = new PatVisitADTModel();

		$db = $this->db;
		$db->transBegin();
		try{
			$this->where('InternalPVID',$InternalPVID)->set($input)->update();
			
			// patdiag
			$exist = $modelPD->where('InternalPVID',$InternalPVID)->find();
			$tmp = '';
			if($exist) {
				if( !empty($input['PatDiag']) && ( !empty($input['PatDiag']['DiagCode']) || !empty($input['PatDiag']['Diagnosis']) ) )  { 
					$tmp = $modelPD->where('InternalPVID',$InternalPVID)->set($input['PatDiag'])->update();
				} else { $tmp = $modelPD->delete($InternalPVID); }
			} else {
				if( !empty($input['PatDiag']) && ( !empty($input['PatDiag']['DiagCode']) || !empty($input['PatDiag']['Diagnosis']) ) )  { 
					$input['PatDiag']['InternalPVID'] = $InternalPVID;
					$tmp = $modelPD->insert($input['PatDiag']);
				} 
			}
			if ($tmp === false) { 
				$error = $db->error();
				throw new \Exception("Failed to update PatDiag record. ". $error['message']); 
			}

			// patvisitadt
			$exist = $modelPVA->where('InternalPVID',$InternalPVID)->find();
			if($exist) {
				if(!empty($input['PatVisitADT'])) { 
					$tmp = $modelPVA->where('InternalPVID',$InternalPVID)->set($input['PatVisitADT'])->update();
				} else { $tmp = $modelPVA->where('InternalPVID',$InternalPVID)->delete(); }
			} else {
				if(!empty($input['PatVisitADT'])) { 
					$input['PatVisitADT']['InternalPVID'] = $InternalPVID;
					$tmp = $modelPVA->insert($input['PatVisitADT']);
				} 
			}
			if ($tmp === false) { 
				$error = $db->error();
				throw new \Exception("Failed to update PatVisitADT record. ". $error['message']); 
			}

			if ($db->transStatus() === FALSE) {
				$db->transRollback();
				return false;
			} else {
				$db->transCommit();
				$data = [ "PVID" => $input['PVID'], "InternalPVID" => $InternalPVID ];
				return $data;
			}

		} catch (\Exception $e) {
			$this->db->transRollback();
      throw $e; 
		}
	}
}