<?php

namespace App\Controllers;
use App\Models\ClientModel;
use App\Models\ClientBranchModel;
use App\Models\BranchModel;
use App\Models\BusinessModel;
use App\Models\StaffModel;
use App\Models\ClientDocsModel;

use PhpOffice\PhpSpreadsheet\IOFactory;

use App\Models\DocsStatusModel;
use CodeIgniter\API\ResponseTrait;

use App\Helpers\NotificationHelper;


use GuzzleHttp\Client;
use GuzzleHttp\Exception\RequestException;

class ClientController extends BaseController
{
    public $session;
    protected $ClientModel;
    protected $ClientBranchModel;
    protected $BranchModel;
    protected $BusinessModel;
    protected $StaffModel;
    protected $ClientDocsModel;
    protected $DocsStatusModel;

    use ResponseTrait;
    
    public function __construct()
    {
        $this->session = session();
        $this->ClientModel = new ClientModel();
        $this->ClientBranchModel = new ClientBranchModel();
        $this->BranchModel = new BranchModel();
        $this->BusinessModel = new BusinessModel();
        $this->StaffModel = new StaffModel();
        $this->ClientDocsModel = new ClientDocsModel();
        $this->DocsStatusModel = new DocsStatusModel();

    }
    
    public function login()
    {
        if($this->session->has('is_client_logged_in')){ return redirect()->to(base_url().'client_home'); }
		if($this->request->getmethod() == 'POST')
		{
			$gst_no = $this->request->getPost('gst_no');
			$client_branch_data = $this->ClientBranchModel->where('gst_no', $gst_no)->first();
			if($client_branch_data)
			{
				if($client_branch_data['is_active'] == 0)
				{
					$this->session->setTempdata('error','Client Deactivated',3);
					return redirect()->to(base_url());	
				}
                $this->session->set('is_client_logged_in',$client_branch_data['id']);
                // $this->session->set('logged_in_client_name',$clientdata['org_name']);
                return redirect()->to(base_url().'client_home');
			}else{
			  $this->session->setTempdata('error','Email or Password is invalid',3);
			  return redirect()->to(base_url());				  
			}
		}
		return view('client_login');
    }

    public function client_logout()
	{
		session()->remove('is_client_logged_in');
		session()->destroy();
		return redirect()->to(base_url());
	}

    public function client_home(){
        $client_id =$this->session->get('is_client_logged_in');
        $data['doc_list'] =  $this->ClientDocsModel->getTemplate($client_id);
        $clientdata = $this->ClientBranchModel->where('id', $client_id)->get()->getRow();
        if($clientdata){
            echo view('layout/header', ['Data'=>$clientdata]);
            echo view('client_home',$data);
            echo view('layout/footer'); 
        }
    }

    public function client_profile()
	{
		if(!$this->session->has('is_client_logged_in')){ return redirect()->to(base_url()); }
		if($this->request->getmethod() == 'POST')
		{
				//update client profile
				$clientData = $this->request->getVar();
                $clientData['updated_by'] = $this->session->get('is_client_logged_in');
				$client_id =  $this->request->getVar('client_id');
				$this->ClientModel->where('client_id', $client_id )->set($clientData)->update();
				echo true;
		}else{
            $clientdata = $this->ClientModel->where('client_id',$this->session->get('is_client_logged_in'))->get()->getRow();
            echo view('layout/header', ['Data'=>$clientdata]);
            echo view('client_profile',['client'=>$clientdata]);
            echo view('layout/footer');
		}
	}

    public function change_client_password($client_id)
    {
        $old_password =$this->request->getVar('old_password');
        $new_password =$this->request->getVar('new_password');
        $confirm_password =$this->request->getVar('confirm_password');
        $client = $this->ClientModel->where('client_id',$client_id)->first();
        $data_old_password = $client['password'];
        if (!password_verify($old_password, $data_old_password)) {
            $response = array(
                'status' => 'error',
                'message' => 'Old Password Not Match...'
            );
            return json_encode($response);
        } 
        if($new_password  != $confirm_password){
            $response = array(
                'status' => 'error',
                'message' => 'New Password And Confirm Password Not Match...'
            );
            return json_encode($response);
        }
        $data['password'] = $new_password;
        if ($this->ClientModel->update($client_id, $data)) {
            $response = array(
                'status' => 'success',
                'message' => 'Password Change Succuessfully'
            );
            return json_encode($response);
        }
    }

    public function generate_otp()
    {
        try {
            $gst_no = $this->request->getPost('gst_no');
            if (empty($gst_no)) {
                throw new \Exception('GST number is required');
            }
            $client_branch_data = $this->ClientBranchModel->where('gst_no', $gst_no)->first();
            if (!$client_branch_data) {
                throw new \Exception('Client branch not found for GST number: ' . $gst_no);
            }
            $id = $client_branch_data['id'];
            $otp = mt_rand(100000, 999999); 
            $data = ['otp' => $otp];
            $update = $this->ClientBranchModel->update($id, $data);
            if (!$update) {
                throw new \Exception('Failed to update OTP in database');
            }
            $notificationHelper = new NotificationHelper();
            $number = '91'. $client_branch_data['mobile_no']; // Replace with dynamic recipient number
            $message = 'Login OTP is: ' . $otp;
            if($client_branch_data['whatsapp'] == 1){
                try {
                    $notificationHelper->sendWhatsAppMessage($number, $message);
                    // return $this->respond(['success' => true, 'otp' => $otp]);
                } catch (\Exception $e) {
                    return $this->respond(['Error' => $e->getMessage()]);
                }
            }
            if($client_branch_data['sms'] == 1){
                try {
                    $notificationHelper->sendSms('91'. $client_branch_data['mobile_no'], $client_branch_data['name'], $otp, '', 'login_otp','');
                    // return $this->respond(['success' => true, 'otp' => $otp]);
                } catch (\Exception $e) {
                    return $this->respond(['Error' => $e->getMessage()]);
                }
            }
            return $this->respond(['success' => true, 'otp' => '']);
            // Return success response with OTP
        } catch (\Exception $e) {
            // Log the exception
            error_log('Error generating OTP: ' . $e->getMessage());
    
            // Return error response
            return $this->respond(['status' => 'error', 'code' => 500, 'message' => $e->getMessage()], 500);
        }
    }
    
    public function verify_otp()
    {
        try {
            $gst_no = $this->request->getPost('gst_no');
            $otp = $this->request->getPost('otp');
            $client_branch_data = $this->ClientBranchModel->where('gst_no', $gst_no )->where('otp', $otp)->first();
            $data = ['otp' =>''];
            if($client_branch_data){
                $id = $client_branch_data['id'];
                $update = $this->ClientBranchModel->update($id , $data);
                if($update){
                    return json_encode(true);
                }
            } else {
                return ;
            }
        } catch (\Exception $e) {
            return $this->respond(['status' => 'error', 'code' => 500, 'message' => $e->getMessage()], 500);
        }
    }

    public function status_client()
    {
        try {
            $client_id = $this->request->getPost('client_id');
            $is_active = $this->request->getPost('is_active'); 
            $data = [
                'is_active' => $is_active
            ];
            $updated = $this->ClientModel->update($client_id, $data);
            if ($updated) {
                $client_branch_list = $this->ClientBranchModel->where('client_id', $client_id)->findAll();
                foreach($client_branch_list as $key=> $value){
                    $this->ClientBranchModel->update($value['id'], $data);
                }
                return $this->respond(['status' => 'success','code' => 200,'data' => true],200);
            } else {
                $result = "No Match's";
                return $this->respond(['status' => 'failed','code' => 404,'data' => $result],404);
            }
        } catch (\Exception $exception) {
            return $this->respond(['status' => 'failed','code' => 500,'data' => $exception],500);
       }
    }

    public function doc_rejection()
    {
        $id = $this->request->getPost('doc_id');
        $data=[
            'rejection_reason' => $this->request->getPost('rejection_reason'),
            'is_approved' => $this->request->getPost('is_approved')
        ];
        if($id){
            $update =$this->ClientDocsModel->update($id, $data);
            if($this->session->has('is_client_logged_in')){ 
                $logged_user =  $this->session->get('is_client_logged_in'); 
                $statusData['is_staff'] = 0;
            }else{
                $logged_user =  $this->session->get('is_staff_logged_in'); 
                $statusData['is_staff'] = 1;
            }
            $statusData['client_docs_id'] = $id;
            $statusData['created_by'] = $logged_user;
            $statusData['status'] = 'Rejected';
            $statusData['note'] = $this->request->getPost('rejection_reason');
            $this->DocsStatusModel->insert($statusData);
            if ($update) {
                return json_encode(true);
            }
        }
        return ;
    }

    public function client_branch_list()
	{
        // if(!$this->session->has('is_staff_logged_in')){ return redirect()->to(base_url().'staff'); }
		$data['clientBranchList'] =  $this->ClientBranchModel->select('client_branch.*, client.name as client_name, service_group.business_id')
									->join('client', 'client.client_id = client_branch.client_id', 'left')
									->join('client_docs', 'client_docs.client_branch_id = client_branch.id')
                                    ->join('template', 'template.template_id = client_docs.template_id')
                                    ->join('service_group', 'service_group.service_group_id = template.service_group_id')									// ->where('client.branch_id',$this->session->get('logged_in_staff_branch_id'))
									// ->groupBy('client_branch.client_id')
									->findAll();
        $data['client_list'] = $this->ClientModel->select('client_id, name')->where('is_active', 1)->findAll();
        $staffdata = $this->StaffModel->where('staff_id',$this->session->get('is_staff_logged_in'))->get()->getRow();
        $data['business_list'] = $this->BusinessModel->findAll();

        
        echo view('layout/header', ['Data'=>$staffdata]);
        echo view('client_branch_list',$data);
        echo view('layout/footer');
	}

    public function add_client_branch()
    {
        $gst = $this->request->getPost('gst_no');
        $client_branch = $this->ClientBranchModel->where('gst_no', $gst)->first();
        if($client_branch){
            return json_encode(false);
        }else{
            $data = $this->request->getPost();
            $this->ClientBranchModel->insert($data);
            return json_encode(true);
        }
    }

    public function edit_client_branch()
    {
        $id = $this->request->getPost('id');
        $data = $this->request->getPost();
        $this->ClientBranchModel->update($id, $data);
        return json_encode('update');
    }

    public function get_client_branch($branch_id)
    {
        if ($branch_id) {
            $branch =$this->ClientBranchModel->where('id',$branch_id)->first();
            return json_encode($branch);
        }   
    }

    public function status_client_branch()
    {
        try {
            $client_branch_id = $this->request->getPost('client_branch_id');
            $is_active = $this->request->getPost('is_active'); 
            $data = [
                'is_active' => $is_active
            ];
            $updated = $this->ClientBranchModel->update($client_branch_id, $data);
            if ($updated) {
                return $this->respond(['status' => 'success','code' => 200,'data' => true],200);
            } else {
                $result = "No Match's";
                return $this->respond(['status' => 'failed','code' => 404,'data' => $result],404);
            }
        } catch (\Exception $exception) {
            return $this->respond(['status' => 'failed','code' => 500,'data' => $exception],500);
       }
    }

    public function client_upload()
    {
        if ($_FILES['file']['name']) {
            $allowed_extension = ['xls', 'xlsx'];
            $file_array = explode(".", $_FILES['file']['name']);
            $file_extension = end($file_array);
            if (in_array($file_extension, $allowed_extension)) {
                $file_name = $_FILES['file']['tmp_name'];
                $spreadsheet = \PhpOffice\PhpSpreadsheet\IOFactory::load($file_name);
                $data = $spreadsheet->getActiveSheet()->toArray();
                // Extract headers and data
                $headers = array_shift($data);
               
                $nameIndex = array_search('Name', $headers);
                $panNoIndex = array_search('PAN No', $headers);
                $emailIndex = array_search('Email', $headers);
                $mobileNoIndex = array_search('Mobile No', $headers);
                if ($nameIndex === false || $panNoIndex === false || $emailIndex === false || $mobileNoIndex === false) {
                    echo "Required columns (Name, PAN No, Email, Mobile No) not found in the spreadsheet.";
                    return;
                }

                $groupedData = [];
                // Group data by the "Name" field
                foreach ($data as $key => $row) {
                    $name = $row[$nameIndex];
                    $panNo = $row[$panNoIndex];
                    $email = $row[$emailIndex];
                    $mobileNo = $row[$mobileNoIndex];
                    if (!isset($groupedData[$name])) {
                        $groupedData[$name] = [
                            'name' => $name,
                            'pan_no' => $panNo,
                            'email' => $email,
                            'mobile_no' => $mobileNo,
                            'branches' => []
                        ];
                    }
                    $branch = [];
                    foreach ($headers as $index => $header) {
                        // print_r($header);die;
                        switch ($header) {
                            case 'B Name':
                                $branch['b_name'] = $row[$index];
                                break;
                            case 'GST No':
                                $branch['gst_no'] = $row[$index];
                                break;
                            case 'B Mobile No':
                                $branch['b_mobile_no'] = $row[$index];
                                break;
                            case 'B Email':
                                $branch['b_email'] = $row[$index];
                                break;
                            case 'Pin Code':
                                $branch['pin_code'] = $row[$index];
                                break;
                            case 'Country':
                                $branch['country'] = $row[$index];
                                break;
                            case 'State':
                                $branch['state'] = $row[$index];
                                break;
                            case 'City':
                                $branch['city'] = $row[$index];
                                break;
                            case 'Address':
                                $branch['address'] = $row[$index];
                                break;
                            // default:
                            //     $branch[$header] = $row[$index];
                            //     break;
                        }
                    }
                    $groupedData[$name]['branches'][] = $branch;
                }

                foreach ($groupedData as $key => $value) {
                    $created_by = $this->session->get('is_staff_logged_in');
                    $business_id = $this->session->get('logged_in_staff_business_id');
                    // $business= $this->BranchModel->select('*')
                    //                             ->join('business' , 'branches.business_id = business.business_id', 'left')
                    //                             ->where('branches.branch_id ',$branch_id)
                    //                             ->first();
                    // $business_id = $business['business_id'];
                    $insertData = [
                        "name" => $value['name'],
                        "pan_no" => $value['pan_no'],
                        "email" => $value['email'],
                        "mobile_no" => $value['mobile_no'],
                        "created_by" => $created_by,
                        "business_id" => $business_id,
                    ];
                    $client_pan_find = $this->ClientModel->where('pan_no', $value['pan_no'])->first();

                    if($client_pan_find){

                    }else{
                        $client = $this->ClientModel->insert($insertData);
                        if($client){
                            if($value['branches']){
                                foreach ($value['branches'] as $key => $branch) {
                                    $insertBranchData = [
                                        "name" => $branch['b_name'],
                                        "gst_no" => $branch['gst_no'],
                                        "email" => $branch['b_email'],
                                        "mobile_no" => $branch['b_mobile_no'],
                                        "created_by" => $created_by,
                                        "client_id" => $client,
                                        "country" => $branch['country'],
                                        "state" => $branch['state'],
                                        "city" => $branch['city'],
                                        "pin_code" => $branch['pin_code'],
                                        "address" => $branch['address'],
                                    ];
                                    
                                    if($this->ClientBranchModel->where('gst_no', $branch['gst_no'])->first()){

                                    }else{
                                        $clientBranch = $this->ClientBranchModel->insert($insertBranchData);
                                    }
                                }
                            }
                        }
                    }

                   
                }
                return json_encode(true);
            } else {
                echo "Invalid file extension.";
            }
        } else {
            echo "No file uploaded.";
        }
    }
}