<?php

namespace App\Http\Controllers;

use App\PurchaseOrder;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Storage;
use App\Booking;
use App\Rate;
use App\UserBankSlip;
use App\User;
use Auth;
use Validator;
use DateTime;

class BookingController extends Controller
{

    public function index(){
        $bookings = Booking::select('id', 'created_at', 'status', 'rate', 'amount', 'bia', 'verification_status')
                            ->where('user_id',Auth::user()->id)
                            ->get();
        
        // reformat to fit frontend structure 
        foreach ($bookings as $booking) {
            // set timeout 
            $date1 = new DateTime($booking->created_at);
            $date2 = new DateTime();
            $difference_in_seconds = ($date1->format('U') + 600) - ($date2->format('U'));
            $booking->timeout = $difference_in_seconds;  

            // TODO : you can make it better
            if($difference_in_seconds < 0 ){
                $booking->timeout = 0;
            }

            // TODO : transfer_amount change name to bia 
            $booking->transfer_amount = $booking->bia; 
 
            $booking->track_status = "(". $booking->status ."/6)";

            switch ($booking->status) {
                case 1:
                    $booking->status_desc = "Order in progress"; 
                case 2:
                    $booking->status_desc = "Waiting for payment";      
                case 3:
                    $booking->status_desc = "Waiting verification";      
                case 4:
                    $booking->status_desc = "Processing transfer"; 
                case 5:
                    $booking->status_desc = "Transfer Complete, please upload your PO"; 
                case 6:
                    $booking->status_desc = "Processing invoice"; 
                default:
                    $booking->status_desc = "";
            }
        }

        return $bookings;
    }

    public function show($id)
    {   
        $booking = Booking::where('user_id',Auth::user()->id)->where('id', $id)->first();

        $date1 = new DateTime($booking->created_at);
        $date2 = new DateTime();
        $difference_in_seconds = ($date1->format('U') + 600) - ($date2->format('U'));

        $booking->timeout = $difference_in_seconds;   

        if (!$booking){
            return response()->json(['success'=>false, 'message'=>'not found'], 404);
        }
        return $booking;
    }

    public function store(Request $request)
    {
        $rates = Rate::orderby('updated_at','desc')->first();
        $term = $request->input('term');
        $amount = $request->input("amount");
        $user = Auth::user(); 
        $rate = 1; // default rate to 1 

        switch ($term) {
            case "x1_cash":
                $rate = $rates->x1_cash;
                break;
            case "x1_cheque":
                $rate = $rates->x1_cheque;
                break;
            case "x1_ba":
                $rate = $rates->x1_ba;
                break;
            case "x2_cash":
                $rate = $rates->x2_cash;
                break;
            case "x2_cheque":
                $rate = $rates->x2_cheque;
                break;
            case "x2_ba":
                $rate = $rates->x2_ba;
                break;
            default:
                return response()->json([
                    'success' => false,
                    'message' => 'Invalid input',
                ], 422);
                break;
        }
        
        // Service charge (RMB) : if amount higher than 10,000, no service charge. if amount lower than 10,000, 20.00 service charge
         if ($amount >= 10000 && ($term == 'x2_cash' || $term = 'x2_cheque' || $term = 'x2_ba')) {
            $svcharge = 0;
        } else {
            $svcharge = 20.00;
        }

        // initial rmb to myr amount 
        $RMBinMYR = (($amount + $svcharge) / $rate);

        // TODO : Should be remove this ? 
        // gst 0% 
        $gst = 0 * $RMBinMYR;

        // Sales tax : 10 % 
        $sales_tax = 0.10 * $RMBinMYR;

        // Billing fees : 1.5%
        $billing = 0.015 * $RMBinMYR;

        // Bank in amount
        $bia = round($RMBinMYR + $gst + $sales_tax + $billing, 2);

        $booking = new Booking();
        $booking->account_name = $request->input('account_name');
        $booking->account_num = $request->input('account_num');
        $booking->bank_name = $request->input('bank_name');
        $booking->bank_branch = $request->input('bank_branch');
        $booking->amount = $request->input('amount');
        $booking->term = $term;
        $booking->rate_id = $rates->id;
        $booking->rate = $rate; 
        $booking->rmb_book_amount = $request->input('amount');
        $booking->status = 2; 
        $booking->bia = $bia;
        // $booking->user_id = $user->id;
        $booking->user()->associate($user);
       

        // The test failed due to ->save() before filling up the information at below

        // TODO : handle RMB, MYR and USD (we can use exchange type: USDtoMYR, RMBtoMYR vise versa to switch case)
        // $booking->rmb_book_pay_method = $request->input('payment_method');
        // $booking->rmb_book_account_name = $request->input('rmb_book_account_name');
        // $booking->rmb_book_acc_no = $request->input('rmb_book_acc_no');
        // $booking->rmb_book_bank_branch = $request->input('rmb_book_bank_branch');
        // $booking->company_name = $request->input('company_name');
        // $booking->company_address = $request->input('company_address');
        // $booking->bank_address = $request->input('bank_address');
        // $booking->swift_code = $request->input('swift_code');
        // $booking->cnap = $request->input('cnap');
        // $booking->term = $request->input('term');

        // $booking->usd_book_amount = $request->input('usd_book_amount');
        // $booking->usd_book_pay_method = $request->input('usd_book_pay_method');
        // $booking->usd_book_company_name = $request->input('usd_book_company_name');
        // $booking->usd_book_company_address = $request->input('usd_book_company_address');
        // $booking->usd_book_swift_code = $request->input('usd_book_swift_code');
        // $booking->usd_book_cnap = $request->input('usd_book_cnap');
        // $booking->usd_book_bank_branch = $request->input('usd_book_bank_branch');
        // $booking->verification_status = $request->input('verification_status');
        $booking->save();
        return response()->json($booking, 201);
    }

    public function update(Request $request, $book_id)
    {
        $book_id = Booking::find($book_id);
        $book_id->account_name = $request->input('account_name');
        $book_id->account_num = $request->input('account_num');
        $book_id->bank_name = $request->input('bank_name');
        $book_id->bank_branch = $request->input('bank_branch');
        $book_id->company_name = $request->input('company_name');
        $book_id->company_address = $request->input('company_address');
        $book_id->bank_address = $request->input('bank_address');
        $book_id->swift_code = $request->input('swift_code');
        $book_id->cnap = $request->input('cnap');
        $book_id->save();
 
        return response()->json(['book_id'=>$book_id],200);
    }

    public function uploadbankslip(Request $request, $id)
    {
        $booking = Booking::where('user_id',Auth::user()->id)->where('id',$id)->first();
        
        /* Validation*/
        if (!$booking)
        {
            return response()->json(['message'=>'Access denied'], 200);
        }

        $validator = Validator::make($request->all(), [
            'file'   => 'image|mimes:jpg,jpeg,bmp,png'
        ]);

        if($validator->fails())
        {
            return response()->json(['message'=>'Incorrect format'],200);
        }


        if(!$bankslip_file = $request->file('file'))
        {
            return response()->json(['message' => 'No file detected'], 400);
        }
        /* End Validation */
        $filename = $bankslip_file->getClientOriginalName();
        $ext = $bankslip_file->getClientOriginalExtension();
        $input['file'] = $filename;

        $unique_name = 'bank_slip_' . md5($filename. time()); // probably not a good idea 
        $unique_image_url = $unique_name. '.' .$ext;
        Storage::putFileAs(
            'user_bankslip', $bankslip_file, $unique_image_url
        ); 

        $user_bankslip = new UserBankSlip;
        $user_bankslip->booking_id = $booking->id;
        $user_bankslip->bankslip_url =  $unique_image_url;
        $user_bankslip->transfer_amount = $request->input('transfer_amount');
        $user_bankslip->save();


        return response()->json(['message'=>"Success"],200);
    }

    public function updateBankSlipAmount(Request $request, $id){
        $booking = Booking::where('user_id',Auth::user()->id)->where('id',$id)->first();
        $user_bankslip = $booking->userBankSlip()->first();

        if(!$user_bankslip){
            return response()->json(["message"=> "not found"],400);
        }
        $user_bankslip->transfer_amount = $request->input('transfer_amount');
        $user_bankslip->save();
        return response()->json(["message"=> "Success"],200);
    }

    public function uploadPurchaseOrder(Request $request, $id)
    {
        $booking = Booking::where('user_id',Auth::user()->id)->where('id',$id)->first();

        /* Validation */
            if (!$booking)
            {
                return response()->json(['message'=>'Access denied'], 200);
            }

            $validator = Validator::make($request->all(), [
                'file'   => 'image|mimes:jpg,jpeg,bmp,png'
            ]);

            if($validator->fails())
            {
                return response()->json(['message'=>'Incorrect format'],200);
            }

            if(!$user_input_file = $request->file('file'))
            {
                return response()->json(['message' => 'No file detected'], 400);
            }
        /* End Validation */

        $filename = $user_input_file->getClientOriginalName();
        $ext = $user_input_file->getClientOriginalExtension();

        $input['file'] = $filename;
        $unique_name = 'purchase_order_' . md5($filename. time());
        $unique_image_url = $unique_name. '.' .$ext;
        Storage::putFileAs(
            'file',/*folder name*/ $user_input_file, $unique_image_url
        );

        $user_po = new PurchaseOrder;
        $user_po->image_url = $unique_image_url;
        $user_po->book_id = $booking->id;
        $user_po->amount = $request->input('amount');
        $user_po->save();

        return response()->json(['message'=>'Success'],200);
    }

    public function delete(Booking $book_id)
    {
        $booking = Booking::where('user_id', Auth::user())->where('id', $book_id)->firstOrFail();
        $booking->delete($book_id);
        return response()->json($book_id, 204);
    }

    public function cancel(Request $request, $book_id)
    {
        if (!$booking = Booking::where('user_id',Auth::user()->id)->where('id',$book_id)->first())
        {
            return response()->json(['message'=>'Access denied'], 200);
        }

        $booking->is_cancel = true;
        $booking->save();

        return response()->json(['message'=>'Success'],200);
    }

    public function calculation(Request $request){
        $amount = $request->input('amount');
        $term = $request->input('term');
        $china_beneficiary = $request->input('china_beneficiary');
        $rates = Rate::orderby('updated_at','desc')->first();
 
        // TODO : get marking 
        $marking = "123X";
 
        switch ($term) {
         case "x1_cash":
             $rate = $rates->x1_cash;
             $payment_method = "cash";
             break;
         case "x1_cheque":
             $rate = $rates->x1_cheque;
             $payment_method = "Cheque";
             break;
         case "x1_ba":
             $rate = $rates->x1_ba;
             $payment_method = "BA";
             break;
         case "x2_cash":
             $rate = $rates->x2_cash;
             $payment_method = "Cash";
             break;
         case "x2_cheque":
             $rate = $rates->x2_cheque;
             $payment_method = "Cheque";
             break;
         case "x2_ba":
             $rate = $rates->x2_ba;
             $payment_method = "BA";
             break;
         default:
             return response()->json([
                 'success' => false,
                 'message' => 'Invalid input',
             ], 422);
             break;
         }
 
         if ($amount >= 10000 && ($term == 'x2_cash' || $term = 'x2_cheque' || $term = 'x2_ba')) {
             $svcharge = 0;
         } else {
             $svcharge = 20.00;
         }
 
         $bankin_amount = round(($amount + $svcharge) / $rate + (0 * ($amount + $svcharge)), 2);
 
         return response()->json([
             'date' => date('Y-m-d'),
             'marking' => $marking,
             'amount' => $amount,
             'payment_method' => $payment_method,
             'service_charge' => $svcharge,
             'rate' => $rate,
             'bankin_amount' => $bankin_amount,
             'china_beneficary' => $china_beneficiary
         ], 200);
     }

    public function approveBankSlip(Request $request, $book_id)
    {
        if (!$booking = Booking::where('user_id',Auth::user()->id)->where('id',$book_id)->first())
        {
            return response()->json(['message'=>'Access denied'], 200);
        }

        if(!$userBankSlip = UserBankSlip::where('book_id',$booking->id)->first())
        {
            return response()->json(['message'=>'Access denied'], 200);   
        }

        // Rejected bankslip cannot be approve again
        if($userBankSlip->is_reject == 1)
        {
            return response()->json(['message'=>'Bankslip already rejected'],200);    
        }

        $userBankSlip->is_approve = 1;
        $userBankSlip->save();
        return response()->json(['message'=>'Success'],200);
    }

    public function rejectBankSlip(Request $request, $book_id)
    {
        if (!$booking = Booking::where('user_id',Auth::user()->id)->where('id',$book_id)->first())
        {
            return response()->json(['message'=>'Access denied'], 200);
        }

        if(!$userBankSlip = UserBankSlip::where('book_id',$booking->id)->first())
        {
            return response()->json(['message'=>'Access denied'], 200);
        }

        // approved bankslip cannot be reject again
        if($userBankSlip->is_approve == 1)
        {
            return response()->json(['message'=>'Bankslip already approved'],200);    
        }

        $userBankSlip->is_reject = 1;
        $userBankSlip->reject_reason = $request->reject_reason;
        $userBankSlip->save();

        return response()->json(['message'=>'Success'],200);
    }

}