IMMREX7

<?php

namespace App\Http\Controllers\School;

use Illuminate\Http\Request;
use App\Http\Controllers\Controller;
use Auth;
use DB;
use Session;
use Carbon\Carbon;

class LeaveController extends SchoolController {

    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function index(Request $request) {
        $departments = ['' => '--Select--'] + \App\Department::where('idSchool', '=', Auth::guard('school')->user()->idSchool)
                        ->orderBy('departmentName')->get()->pluck('departmentName', 'idDepartment')->toArray();
        $leaves = \App\LeaveMaster::where('idSchool', '=', Auth::guard('school')->user()->idSchool)
                        ->orderBy('idLeave', 'desc');
        if ($request->has('idFinancialYear')) {
            $leaves = $leaves->where('idFinancialYear', '=', $request->idFinancialYear)->get();
        } else {
            $leaves = $leaves->where('idFinancialYear', '=', Session::get('idFinancialYear'))->get();
        }
        return view('schools.hrms.leave', compact('leaves', 'departments'));
    }


    public function viewDoc($id) {
        $leaves = \App\EmployeeLeave::findOrFail($id);
        $path = storage_path('app/public/schools/' . $leaves->idSchool . '/leaves/' . $leaves->documents);
        return response()->file($path);
    }

    /**
     * Show the form for creating a new resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function create() {
        //
    }

    /**
     * Store a newly created resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\Response
     */
    public function store(Request $request) {
        $rules = [
            'idDepartment' => 'required',
            'paidLeaves'=>'required'
        ];
        if (count($request->designations) == 0) {
            $rules += ['idDesignation' => 'required'];
        }
        $messages = [
            'idDepartment.required' => 'Department must be selected.',
            'paidLeaves.required'=>'Please Enter Total Paid Leave.',
            'idDesignation.required' => 'At least one designation must be selected.'
        ];
        $this->validate($request, $rules, $messages);
        

        if ($request->has('employees')) {
            foreach ($request->employees as $key => $value) {
                $emp = \App\Employee::where('idEmployee', '=', $value)->first();
                $leave = new \App\LeaveMaster();
                $leave->fill($request->all());
                $leave->idEmployee = $value;
                $leave->idDesignation = $emp->idDesignation;
                $leave->idFinancialYear = Session::get('idFinancialYear');
                $leave->idSchool = Auth::guard('school')->user()->idSchool;
                if($request->has('exclude_month')){
                    $leave->exclude_month = json_encode($request->exclude_month);
                }
                $leave->save();
            }
        } else {
            foreach ($request->designations as $key1 => $value1) {
                $leave = new \App\LeaveMaster();
                $leave->fill($request->all());
                $leave->idDesignation = $value1;
                $leave->idFinancialYear = Session::get('idFinancialYear');
                $leave->idSchool = Auth::guard('school')->user()->idSchool;
                if($request->has('exclude_month')){
                    $leave->exclude_month = json_encode($request->exclude_month);
                }
                $leave->save();
            }
        }
        flash('Leave Master has been added successfully !!');
        if ($request->ajax()) {
            return response()->json(['success' => "SUCCESS"], 200, ['app-status' => 'success']);
        }
        return redirect('school/leaves');
    }

    /**
     * Display the specified resource.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function show($id) {
        //
    }

    /**
     * Show the form for editing the specified resource.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function edit($id) {
        $departments = ['' => '--Select--'] + \App\Department::where('idSchool', '=', Auth::guard('school')->user()->idSchool)
                        ->orderBy('departmentName')->get()->pluck('departmentName', 'idDepartment')->toArray();
        $leaves = \App\LeaveMaster::where('idSchool', '=', Auth::guard('school')->user()->idSchool)
                        ->orderBy('idLeave', 'desc')->get();
        $leave = \App\LeaveMaster::where('idLeave', '=', $id)->first();
        $designations = \App\Designation::where('idDepartment', '=', $leave->idDepartment)->get()->pluck('designationName', 'idDesignation')->toArray();
        $employees = ['' => 'Select'] + \App\Employee::where('idDesignation', '=', $leave->idDesignation)->get()->pluck('name', 'idEmployee')->toArray();
        return view('schools.hrms.leave', compact('leaves','leave' ,'departments','designations','employees'));
    }

    /**
     * Update the specified resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function update(Request $request, $id) {
        $rules = [
            'idDepartment' => 'required',
            'idDesignation' => 'required',
            'paidLeaves'=>'required'
        ];
        $messages = [
            'idDepartment.required' => 'Department must be selected.',
            'paidLeaves.required'=>'Please Enter Total Paid Leave.',
            'idDesignation.required' => 'At least one designation must be selected.'
        ];
        $this->validate($request, $rules, $messages);
        $leave = \App\LeaveMaster::where('idLeave', '=', $id)->first();
        $leave->fill($request->all());
        $leave->update();
        return redirect('school/leaves');
    }

    /**
     * Remove the specified resource from storage.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function destroy($id) {
        $leave = \App\LeaveMaster::where('idLeave', '=', $id)->first();
        $leave->delete();
        return response()->json(['success' => "SUCCESS"], 200, ['app-status' => 'success']);
    }

    public function leaveRequests() {
        $empleaves = \App\EmployeeLeave::leftJoin('school_users', 'employee_leave.status_by', '=', 'school_users.idSchoolUser')->select('employee_leave.*','school_users.name')->where('employee_leave.idSchool', '=', Auth::guard('school')->user()->idSchool)
                ->get();
        return view('schools.hrms.leave_requests', compact('empleaves'));
    }

    public function fetchLeaves($idEmployee){
        $leaves = array();
        $employee = \App\Employee::where('idEmployee', '=', $idEmployee)->first();
        if($employee == null){
            return json_encode($leaves);
        }
        $designationWise = \App\LeaveMaster::where('idSchool', '=', $employee->idSchool)
            ->where('idDesignation',$employee->idDesignation)
            ->where('idFinancialYear',Session::get('idFinancialYear'))
            ->where('leaveType',"monthly")
            ->whereNull('idEmployee')
            ->sum('paidLeaves') * 12;
        $paidLeaves = \App\LeaveMaster::where('idSchool', '=', $employee->idSchool)
            ->where('idDesignation',$employee->idDesignation)
            ->where('idEmployee',$employee->idEmployee)
            ->where('idFinancialYear',Session::get('idFinancialYear'))
            ->where('leaveType',"monthly")
            ->sum('paidLeaves') * 12;

        $leaves["totalMonthLeaves"] = $designationWise + $paidLeaves;

        $designationYearWise = \App\LeaveMaster::where('idSchool', '=', $employee->idSchool)
            ->where('idDesignation',$employee->idDesignation)
            ->where('idFinancialYear',Session::get('idFinancialYear'))
            ->where('leaveType',"yearly")
            ->whereNull('idEmployee')
            ->sum('paidLeaves');
        $paidYearLeaves = \App\LeaveMaster::where('idSchool', '=', $employee->idSchool)
            ->where('idDesignation',$employee->idDesignation)
            ->where('idEmployee',$employee->idEmployee)
            ->where('idFinancialYear',Session::get('idFinancialYear'))
            ->where('leaveType',"yearly")
            ->sum('paidLeaves');

        //check for leave balance
        $leaveBalance = \App\LeaveBalance::where('idSchool', '=', $employee->idSchool)
        ->where('idEmployee',$employee->idEmployee)
        ->where('idFinancialYear',Session::get('idFinancialYear'))
        ->sum('balance');   
        $leaves["totalYearLeaves"] = $designationYearWise + $paidYearLeaves;
       
        $leaves["emp_leaves_taken"] = DB::table('employee_leaves')->where('idFinancialYear',Session::get('idFinancialYear'))->where('idSchool', '=', Auth::guard('school')->user()->idSchool)->where('idEmployee', '=', $employee->idEmployee)->count();
        if($leaveBalance == 0)
        $leaves["left_leaves"] = ($leaves["totalMonthLeaves"] + $leaves["totalYearLeaves"]) - $leaves["emp_leaves_taken"]; 
        else $leaves["left_leaves"] = ($leaves["totalMonthLeaves"] + $leaves["totalYearLeaves"]) - $leaves["emp_leaves_taken"]  - $leaveBalance; 
        return json_encode($leaves);
    }

    public function createleaveRequests(){
        $leaves = [''=>'----Select----'] + DB::table('leave_types')->get()->pluck('name','name')->toArray();
        $employees = [''=>''] + \App\Employee::where('idSchool', '=', Auth::guard('school')->user()->idSchool)->get()->pluck('name', 'idEmployee')->toArray();
        return view('schools.hrms.create_leave_request', compact('employees','leaves'));
    }

    public function storeleaveRequests(Request $request){
        $rules = [
            'idEmployee' => 'required',
            'leave_type' => 'required',
            'fromDate' => 'required',
            'toDate' => 'required'
        ];
        $messages = [
            'idEmployee.required' => 'Select Employee First.',
            'leave_type.required' => 'Select Leave Type First.',
        ];
        $this->validate($request, $rules, $messages);

        $employee = \App\Employee::where('idEmployee', '=', $request->idEmployee)->first();
        $empleave = new \App\EmployeeLeave();
        $empleave->idSchool =$employee ->idSchool;
        $empleave->idEmployee = $employee ->idEmployee;
        $empleave->leave_type = $request->leave_type;
        $empleave->leave_from =Carbon::parse($request->fromDate)->format("Y-m-d");
        $empleave->leave_to = Carbon::parse($request->toDate)->format("Y-m-d");
        $empleave->leave_message = $request->adminMessage;
        $leaves = json_decode($this->fetchLeaves($request->idEmployee),true);
        $empleave->paid_avialable = "Monthly : ".$leaves["totalMonthLeaves"]." Yearly :".$leaves["totalYearLeaves"];
        $empleave->idFinancialYear = Session::get('idFinancialYear');
        

        if($request->status == "Approve with PL(Paid Leave)"){
            $date = Carbon::parse($empleave->leave_from);
            $now = Carbon::parse($empleave->leave_to);
            $diff = $date->diffInDays($now) + 1;
            //check max allowed
            $designationWise = \App\LeaveMaster::where('idSchool', '=', $employee->idSchool)
                ->where('idDesignation',$employee->idDesignation)
                ->where('idFinancialYear',Session::get('idFinancialYear'))
                ->whereNull('idEmployee')->first();
            if($designationWise != null){
                if($designationWise->max_allowed > 0){
                    if($diff > $designationWise->max_allowed){
                          return redirect()->back()->with('error',"You have surpassed the allowed max days per month.");  
                    }
                }
            }else{
                $paidLeaves = \App\LeaveMaster::where('idSchool', '=', $employee->idSchool)
                    ->where('idDesignation',$employee->idDesignation)
                    ->where('idEmployee',$employee->idEmployee)
                    ->where('idFinancialYear',Session::get('idFinancialYear'))->first();
                if($paidLeaves != null){
                    if($paidLeaves->max_allowed > 0){
                        if($diff > $paidLeaves->max_allowed){
                            return redirect()->back()->with('error',"You have surpassed the allowed max days per month.");  
                        }
                    }
                }    
            }    
            
            $empleave->save();

            $empleave->status = $request->status;
            if(isset($request->remarks))
            $empleave->remarks = $request->remarks;
            $empleave->status_date = Carbon::now()->format("Y-m-d");
            $empleave->status_by = Auth::guard('school')->user()->idSchoolUser;

            DB::table('employee_leaves')->insert([
                "idSchool" =>  Auth::guard('school')->user()->idSchool,
                "idEmployee" => $empleave->idEmployee,
                "idFinancialYear" =>  Session::get('idFinancialYear'),
                "idLeave" => $empleave->idLeave,
                "idMonth" => $date->format('m'),
                "leave_date" => $date->format("Y-m-d")
            ]);
            if($empleave->leave_from != $empleave->leave_to){
                for ($x = 1; $x < $diff; $x++) {
                    $currentDay = $date->addDays(1);
                    DB::table('employee_leaves')->insert([
                        "idSchool" =>  Auth::guard('school')->user()->idSchool,
                        "idEmployee" => $empleave->idEmployee,
                        "idFinancialYear" =>  Session::get('idFinancialYear'),
                        "idLeave" => $empleave->idLeave,
                        "idMonth" => $currentDay->format("m"),
                        "leave_date" => $currentDay->format("Y-m-d")
                    ]);
                } 
            }
        }else{
            $empleave->save();

            $empleave->status = $request->status;
            if(isset($request->remarks))
            $empleave->remarks = $request->remarks;
            $empleave->status_date = Carbon::now()->format("Y-m-d");
            $empleave->status_by = Auth::guard('school')->user()->idSchoolUser;
        }
        $empleave->update();
        return redirect('school/leaverequests');
    }

    public function leaveWindow($id){
        $leave = \App\EmployeeLeave::where('idSchool', '=', Auth::guard('school')->user()->idSchool)->where('idLeave', '=', $id)->first();
        $employee = \App\Employee::where('idEmployee', '=', $leave->idEmployee)->first();
        if($leave->status != null){
            return redirect('school/leaverequests');
        }
        $leaveManage = $this->fetchEmployeeLeaves($employee);
        return view('schools.hrms.leave_window', compact('leave','leaveManage'));
    }
    
    
    public function leaveAction(Request $request) {
        $empleave = \App\EmployeeLeave::where('idLeave', '=', $request->idLeave)->first();
        if($empleave->status != null){
            return redirect('school/leaverequests');
        }
        $employee = \App\Employee::where('idEmployee', '=', $request->idEmployee)->first();
        $empleave->status = $request->status;
        if(isset($request->remarks))
        $empleave->remarks = $request->remarks;
        $empleave->status_date = Carbon::now()->format("Y-m-d");
        $empleave->status_by = Auth::guard('school')->user()->idSchoolUser;

        if($request->status == "Approve with PL(Paid Leave)"){
            $date = Carbon::parse($empleave->leave_from);
            $now = Carbon::parse($empleave->leave_to);
            $diff = $date->diffInDays($now) + 1;
            //check max allowed
            $designationWise = \App\LeaveMaster::where('idSchool', '=', $employee->idSchool)
                ->where('idDesignation',$employee->idDesignation)
                ->where('idFinancialYear',Session::get('idFinancialYear'))
                ->whereNull('idEmployee')->first();
            if($designationWise != null){
                if($designationWise->max_allowed > 0){
                    if($diff > $designationWise->max_allowed){
                          return redirect()->back()->with('error',"You have surpassed the allowed max days per month.");  
                    }
                }
            }else{
                $paidLeaves = \App\LeaveMaster::where('idSchool', '=', $employee->idSchool)
                    ->where('idDesignation',$employee->idDesignation)
                    ->where('idEmployee',$employee->idEmployee)
                    ->where('idFinancialYear',Session::get('idFinancialYear'))->first();
                if($paidLeaves != null){
                    if($paidLeaves->max_allowed > 0){
                        if($diff > $paidLeaves->max_allowed){
                            return redirect()->back()->with('error',"You have surpassed the allowed max days per month.");  
                        }
                    }
                }    
            }    
            
            DB::table('employee_leaves')->insert([
                "idSchool" =>  Auth::guard('school')->user()->idSchool,
                "idEmployee" => $empleave->idEmployee,
                "idFinancialYear" =>  Session::get('idFinancialYear'),
                "idLeave" => $empleave->idLeave,
                "idMonth" => $date->format('m'),
                "leave_date" => $date->format("Y-m-d")
            ]);
            if($empleave->leave_from != $empleave->leave_to){
                for ($x = 1; $x < $diff; $x++) {
                    $currentDay = $date->addDays(1);
                    DB::table('employee_leaves')->insert([
                        "idSchool" =>  Auth::guard('school')->user()->idSchool,
                        "idEmployee" => $empleave->idEmployee,
                        "idFinancialYear" =>  Session::get('idFinancialYear'),
                        "idLeave" => $empleave->idLeave,
                        "idMonth" => $currentDay->format("m"),
                        "leave_date" => $currentDay->format("Y-m-d")
                    ]);
                } 
            }
            
        }

        $empleave->update();
        return redirect('school/leaverequests');
    }

    public function fetchEmployeeLeaves($user){
        $leaves = array();
        $designationWise = \App\LeaveMaster::where('idSchool', '=', Auth::guard('school')->user()->idSchool)
        ->where('idDesignation',$user->idDesignation)
        ->where('idFinancialYear',Session::get('idFinancialYear'))
        ->where('leaveType',"monthly")
        ->whereNull('idEmployee')
        ->sum('paidLeaves');
        $paidLeaves = \App\LeaveMaster::where('idSchool', '=', Auth::guard('school')->user()->idSchool)
        ->where('idDesignation',$user->idDesignation)
        ->where('idEmployee',$user->idEmployee)
        ->where('idFinancialYear',Session::get('idFinancialYear'))
        ->where('leaveType',"monthly")
        ->sum('paidLeaves');
        $leaves["totalMonthLeaves"] = $designationWise + $paidLeaves;

        $designationYearWise = \App\LeaveMaster::where('idSchool', '=', Auth::guard('school')->user()->idSchool)
        ->where('idDesignation',$user->idDesignation)
        ->where('idFinancialYear',Session::get('idFinancialYear'))
        ->where('leaveType',"yearly")
        ->whereNull('idEmployee')
        ->sum('paidLeaves');
        $paidYearLeaves = \App\LeaveMaster::where('idSchool', '=', Auth::guard('school')->user()->idSchool)
        ->where('idDesignation',$user->idDesignation)
        ->where('idEmployee',$user->idEmployee)
        ->where('idFinancialYear',Session::get('idFinancialYear'))
        ->where('leaveType',"yearly")
        ->sum('paidLeaves');
        
         //check for leave balance
         $leaveBalance = \App\LeaveBalance::where('idSchool', '=', $user->idSchool)
         ->where('idEmployee',$user->idEmployee)
         ->where('idFinancialYear',Session::get('idFinancialYear'))
         ->sum('balance');   
         $leaves["totalYearLeaves"] = $designationYearWise + $paidYearLeaves;

        if($leaves["totalMonthLeaves"] > 0){
            $now = Carbon::now();
            $leaves["emp_leaves_taken"] = DB::table('employee_leaves')->where('idFinancialYear',Session::get('idFinancialYear'))->where('idMonth',$now->format('m'))->where('idSchool', '=', Auth::guard('school')->user()->idSchool)->where('idEmployee', '=', $user->idEmployee)->count();
            if($leaveBalance == 0)
            $leaves["left_leaves"] = ($leaves["totalMonthLeaves"] + $leaves["totalYearLeaves"]) - $leaves["emp_leaves_taken"]; 
            else $leaves["left_leaves"] = ($leaves["totalMonthLeaves"] + $leaves["totalYearLeaves"]) - $leaves["emp_leaves_taken"] - $leaveBalance; 
        }else{
            $leaves["emp_leaves_taken"] = DB::table('employee_leaves')->where('idFinancialYear',Session::get('idFinancialYear'))->where('idSchool', '=', Auth::guard('school')->user()->idSchool)->where('idEmployee', '=', $user->idEmployee)->count();
            if($leaveBalance == 0)
            $leaves["left_leaves"] = ($leaves["totalMonthLeaves"] + $leaves["totalYearLeaves"]) - $leaves["emp_leaves_taken"]; 
            else $leaves["left_leaves"] = ($leaves["totalMonthLeaves"] + $leaves["totalYearLeaves"]) - $leaves["emp_leaves_taken"]  - $leaveBalance; 
        }
        return $leaves;
    }

    public function leaveApprovalMaster(){
        $employee= ['' => '--Select--'] + \App\Employee::where('idSchool', '=', Auth::guard('school')->user()->idSchool)
        ->orderBy('idEmployee')->get()->pluck('name', 'idEmployee')->toArray();
        $departments = ['' => '--Select--'] + \App\Department::where('idSchool', '=', Auth::guard('school')->user()->idSchool)
                        ->orderBy('departmentName')->get()->pluck('departmentName', 'idDepartment')->toArray();
        $approval = \App\ApprovalLeaveDetail::join('leave_approval_master','leave_approval_details.idPermitUser','=','leave_approval_master.id')->select('leave_approval_master.idEmployee as permit','leave_approval_details.*')->where('leave_approval_details.idFinancialYear',Session::get('idFinancialYear'))->where('leave_approval_details.idSchool', '=', Auth::guard('school')->user()->idSchool)->get();                
        return view('schools.hrms.leave_approval_master',compact('departments','employee','approval'));
    }

    //ApprovalLeaveDetail
    public function storeApprovalPermission(Request $request){
        $rules = [
            'idDepartment' => 'required',
            'employee'=>'required'
        ];
        if (count($request->designations) == 0) {
            $rules += ['idDesignation' => 'required'];
        }
        $messages = [
            'idDepartment.required' => 'Department must be selected.',
            'employee.required'=>'Please select an employee.',
            'idDesignation.required' => 'At least one designation must be selected.'
        ];
        $this->validate($request, $rules, $messages);
        //add master if not exists
        $isExists = \App\ApprovalLeaveMaster::where('idEmployee',$request->employee)->where('idSchool', '=', Auth::guard('school')->user()->idSchool)->first();
        if($isExists != null){
            $this->addPermissions($request,$isExists->id);
        }else{
            $leave = new \App\ApprovalLeaveMaster();
            $leave->idSchool = Auth::guard('school')->user()->idSchool;
            $leave->idFinancialYear = Session::get('idFinancialYear');
            $leave->idEmployee = $request->employee;
            $leave->created_by = Auth::guard('school')->user()->idSchoolUser;
            $leave->save();
            $this->addPermissions($request,$leave->id);
        }
        if ($request->ajax()) {
            return response()->json(['success' => "SUCCESS"], 200, ['app-status' => 'success']);
        }
    }

    private function addPermissions($request,$id){
        if ($request->has('employees')) {
            foreach ($request->employees as $key => $value) {
                $emp = \App\Employee::where('idEmployee', '=', $value)->first();
                $leave = new \App\ApprovalLeaveDetail();
                $leave->idEmployee = $value;
                $leave->idPermitUser = $id;
                $leave->idDesignation = $emp->idDesignation;
                $leave->idFinancialYear = Session::get('idFinancialYear');
                $leave->idSchool = Auth::guard('school')->user()->idSchool;
                $leave->created_by = Auth::guard('school')->user()->idSchoolUser;
                $leave->save();
            }
        } else {
            foreach ($request->designations as $key1 => $value1) {
                $leave = new \App\ApprovalLeaveDetail();
                $leave->idDesignation = $value1;
                $leave->idPermitUser = $id;
                $leave->idFinancialYear = Session::get('idFinancialYear');
                $leave->idSchool = Auth::guard('school')->user()->idSchool;
                $leave->created_by = Auth::guard('school')->user()->idSchoolUser;
                $leave->save();
            }
        }
    }

    public function updateRights(){

    }

    public function deleteRights($id){
        \App\ApprovalLeaveDetail::where('id',$id)->where('leave_approval_details.idFinancialYear',Session::get('idFinancialYear'))->where('leave_approval_details.idSchool', '=', Auth::guard('school')->user()->idSchool)->delete();
        return response()->json(['success' => "SUCCESS"], 200, ['app-status' => 'success']);
    }
}