<?php

namespace App\Controllers;

use App\Controllers\BaseController;
use App\Helpers\MailHelper;
use CodeIgniter\HTTP\ResponseInterface;

use App\Models\ThzMasterModel;
use App\Models\ThzMasterNotesModel;
use App\ControllerCleaners\ThzControllerCleaner;
use App\Models\UserModel;
use App\Models\ClientPolicyModel;
use App\Models\ClientModel;
use App\Models\TicketMailTemplateModel;


class ThzController extends BaseController
{

    protected $thzMasterModel;
    protected $thzMasterNotesModel;

    protected $thzControllerCleaner;

    protected $userModel;
    protected $clientPolicyModel;
    protected $clientModel;

    protected $ticketMailTemplateModel;

    public function __construct()
    {
        $this->thzMasterModel           = new ThzMasterModel();
        $this->thzMasterNotesModel      = new ThzMasterNotesModel();
        $this->thzControllerCleaner     = new ThzControllerCleaner();
        $this->userModel                = new UserModel();
        $this->clientPolicyModel        = new ClientPolicyModel();
        $this->clientModel          = new ClientModel();
        $this->ticketMailTemplateModel  = new TicketMailTemplateModel();
    }

    public function index()
    {
        //
    }

    public function ticketSave(){

        $data = $this->request->getPost();

        if (!empty($data['thz_id'])) {

            $text   = "update";            
            $result = $this->updateTicket($data);
            $updateID = $data['thz_id'];

        } else {

            $text   = "create";
            $insertID = $this->insertTicket($data);
            $result = true;

        }

        $id = isset($insertID) && !empty($insertID) ? $insertID : $updateID ;

        $emailNotificationResult = $this->ticketSaveNotification($data , $insertOrUpdate = $text , $id);

        return $this->response->setJSON([ 
                'status' => $result ? 'success' : 'error',
                'message' => $result ? "Ticket {$text}d successfully " : "Unable to {$text} ticket. Please try again." ,
                'notification' => $emailNotificationResult ? 'Email Notification Success..!!' : 'Email Notification Failed..!!'
                ])->setStatusCode($result ? 200 : 400);
    }
    
    public function ticketList()
    {

        $returnType = strtolower($this->request->getGet('return_type') ?? 'api'); 
        
        
        $data = $this->request->getGet();

        $tickets = $this->fetchTicketsBasedOnrole($data);
        

        if ($returnType === 'api') {
            if (empty($tickets)) {
            return $this->response->setJSON([ 'status'  => 'error','message' => 'No tickets found'])->setStatusCode(404);
            }
        }else{
          
            $data['page_name'] = "Ticket List";
            $data['ticket_data'] = $tickets;
            $data['assignee'] = $this->userModel->where('is_active', 1)->whereIn('role', ['1', '5'])->findAll(); // enga 5-"head" and 1-"admin" role person thaan assignee..
            $data['client_list'] = $this->clientModel->getCreatedByUserName();
            return $this->loadLayout('thz_list', $data);
        }       

        return $this->response->setJSON([
            'status' => 'success',
            'data'   => $tickets,
        ])->setStatusCode(200);
    }

    public function ticketConversationSave(){

            $data = $this->request->getPost();

            $result = $this->thzMasterNotesModel->insert($data);

            if(empty($result)){
                return $this->response->setJSON((['status' => 'error', 'message' => 'No tickets found']))->setStatusCode(404);
            }

            $emailNotificationResult = $this->ticketConversationSaveNotification($data);

            
            return $this->response->setJSON([ 
                'status' => $result ? 'success' : 'error',
                'message' => $result ? "Ticket Notes created successfully" : "Unable to create ticket notes. Please try again." ,
                'notification' => $emailNotificationResult ? 'Email Notification Success..!!' : 'Email Notification Failed..!!'
                ])->setStatusCode($result ? 200 : 400);
    
    }

    public function ticketAutoFetchDetails(){
            $data = $this->request->getPost();

            $client_id = $data['client_id'];
            $mobile = $data['mobile'];

            if($client_id && $mobile){
                
                $details = $this->thzMasterModel->ticketAutoFetchDetails($client_id ,$mobile);
                
                if(empty($details)){
                    return $this->response->setJSON((['status' => 'error', 'message' => 'No Data found']))->setStatusCode(400);        
                }else{

                    $policyIds = array_column($details, 'policy_id');
                    $policyIds = array_filter($policyIds);
                    $clientPolicy = $this->clientPolicyModel->whereIn('policy_id', $policyIds)->where('is_active', 1)->get()->getResultArray();
                    $result['client_details'] = $details;
                    $result['policy_details'] = empty($clientPolicy)  ? [] : $clientPolicy ;

                }
            }else{
                return $this->response->setJSON((['status' => 'error', 'message' => 'Client and Mobile Not found']))->setStatusCode(400);
            }
            
            return $this->response->setJSON((['status' => 'success', 'data' => $result]))->setStatusCode(200);
        

    }

    public function ticketConversationList(){

            $data = $this->request->getGet();

            $thz_id = $data['thz_id'] ?? null;            

            if($thz_id){
                $result['master'] = $this->thzMasterModel
                        ->select('thz_master.*, CONCAT(user_profiles.first_name, " ", user_profiles.last_name) as assignee_name')
                        ->join('user_profiles', 'user_profiles.id = thz_master.assign_to', 'left')
                        ->where('thz_master.thz_id', $thz_id)
                        ->findAll();

                if(!empty($result['master'])){
                    $notes = $this->thzMasterNotesModel->ticketConversationList($thz_id);
                    $result['notes'] = !empty($notes) ? $notes : [];
                }else{
                    return $this->response->setJSON((['status' => 'error', 'message' => 'No tickets found']))->setStatusCode(400);        
                }
            }else{
                return $this->response->setJSON((['status' => 'error', 'message' => 'No tickets found']))->setStatusCode(404);
            }
            
            return $this->response->setJSON((['status' => 'success', 'data' => $result]))->setStatusCode(200);

    }


    /**************************************************   PRIVATE FUNCTIONS  ********************************************************/


    private function fetchTicketsBasedOnrole(array $data): array
    {
        // $id        = $data['thz_id']    ?? null;
        $assign_to = $data['assign_to'] ?? null;
        $mobile    = $data['mobile']    ?? null;

        if (!empty($assign_to)) {
            // Tickets assigned to a staff
            return $this->thzMasterModel
                        ->select('thz_master.*, CONCAT(user_profiles.first_name, " ", user_profiles.last_name) as assignee_name')
                        ->join('user_profiles', 'user_profiles.id = thz_master.assign_to', 'left')
                        ->where('thz_master.assign_to', $assign_to)
                        ->orderBy('thz_master.created_at','desc')
                        ->findAll();
        }

        // if (!empty($id) && !empty($mobile)) {
        if (!empty($mobile)) {
            // Specific ticket by ID and mobile
            return $this->thzMasterModel
                        ->select('thz_master.*, CONCAT(user_profiles.first_name, " ", user_profiles.last_name) as assignee_name')
                        ->join('user_profiles', 'user_profiles.id = thz_master.assign_to', 'left')
                        // ->where('thz_id', $id)
                        ->where('thz_master.mobile', $mobile)
                        ->orderBy('thz_master.created_at','desc')
                        ->findAll();
        }

        // All tickets (e.g., for managers)
        return $this->thzMasterModel
                    ->select('thz_master.*, CONCAT(user_profiles.first_name, " ", user_profiles.last_name) as assignee_name')
                    ->join('user_profiles', 'user_profiles.id = thz_master.assign_to', 'left')
                    ->orderBy('thz_master.created_at','desc')
                    ->findAll();
    }


    private function ticketSaveNotification( $data , $insertOrUpdate , $id){
       
        $user_email  = $data['email'] ?? null;

        $assignee_id = $data['assign_to'] ?? null;

        $assignee_email = $this->findAssigneeEmail($assignee_id);

        $emailToNotified = [
            'user_email' => $user_email,
            'assignee_email' => $assignee_email 
        ];

        $ticketId = $id;

         $result = $this->ticketSaveEmailNotificationBasedOnRole($emailToNotified , $insertOrUpdate , $ticketId , $data);

         return $result;

    }

    private function ticketConversationSaveNotification($data){

        $thz_id = $data['thz_id'] ; // thz is alias of ticket

        $data['subject'] = $this->findSubject($data['thz_id']);

        $assignee_id = $this->findAssigneeId($data['thz_id']) ;

        $user_email  = $data['email'] ?? '';
        
        $assignee_email = $this->findAssigneeEmail($assignee_id) ?? '';

        $sender_mail     =  $data['notes_by'] == "User" ? $user_email        : $assignee_email ;
        $receiver_mail   =  $data['notes_by'] == "User" ? $assignee_email    : $user_email ;

        $templateName   = "ticket_conversation_save_notification";

        $to_email       = $receiver_mail;

        $ticketId       = $thz_id;

        $message        = $data['notes'] ?? '';

        $this->sendEmail( $templateName, $data , $to_email , $ticketId , $message);

        return true;

    }


    private function findAssigneeEmail($assignee_id){

        $row = $this->userModel->where('id', $assignee_id)->get()->getRow();
        $assigneeEmail = $row ? $row->email : null;
       return $assigneeEmail ? $assigneeEmail : "";
        
    }

    private function findAssigneeId($ticketId){
        $row = $this->thzMasterModel->where('thz_id', $ticketId)->get()->getRow();
        $assigneeId = $row ? $row->assign_to : null;
        return $assigneeId ? $assigneeId : 0 ;
    }

    private function findSubject($ticketId){
        $row = $this->thzMasterModel->where('thz_id', $ticketId)->get()->getRow();
        $subject = $row ? $row->subject : null;
        return $subject ? $subject : " " ;
    }

    private function    ticketSaveEmailNotificationBasedOnRole($emailToNotified ,  $insertOrUpdate , $ticketId , $data){

        $user_email     = $emailToNotified['user_email'] ?? null;
        $assignee_email = $emailToNotified['assignee_email'] ?? null;


        if (!empty($assignee_email)) {

            switch ($insertOrUpdate) {

                case 'update':

                    $this->sendEmail( 'ticket_save_update_assignee', $data ,$assignee_email , $ticketId ) ;

                    break;
                    
                case 'create':

                    $this->sendEmail( 'ticket_save_create_assignee', $data ,$assignee_email , $ticketId ) ;
                    
                    break;
                
                default:
                    # code...
                    break;
            }
            
        }

        if (!empty($user_email)) {

            switch ($insertOrUpdate) {

                case 'update':

                    if(empty($assignee_email)){
                        $data['assigneeAndStatus']  = "Not Yet Assigned";
                        $this->sendEmail( 'ticket_save_update_user', $data ,$user_email , $ticketId ) ;
                    }else{
                         $data['assigneeAndStatus'] = "Assigned With {$assignee_email}"; 
                         $this->sendEmail( 'ticket_save_update_user', $data ,$user_email , $ticketId ) ;
                    }

                     break;
                    
                case 'create':

                    if(empty($assignee_email)){
                        $this->sendEmail( 'ticket_save_create_user_unassigned', $data ,$user_email , $ticketId ) ;
                    }else{
                        $data['assignee_email']  = $assignee_email ;
                         $this->sendEmail( 'ticket_save_create_user_assigned', $data , $user_email , $ticketId ) ;
                    }
                    
                    break;
                
                default:
                    # code...
                    break;
            }

        }

        return true;


    }

    private function updateTicket($data){

        $data['updated_by'] = get_session_userid();
        $ticket_id = $data['thz_id'];
        $result = $this->thzMasterModel->where('thz_id', $ticket_id)->set($data)->update();

        return $result;

    }

    private function insertTicket($data)
    {
        $data['created_by'] = get_session_userid();
        $this->thzMasterModel->insert($data);

        return $this->thzMasterModel->insertID(); // returns the inserted row's ID
    }


    private function sendEmail( $templateName, $data , $to_email , $ticketId , $message = ""){
        
        $mailTemplate    =  $this->ticketMailTemplateModel->where('template_name',$templateName )->findAll()[0] ?? [];

        if(empty($mailTemplate)){
            return ;
        }

        $mailTemplate['subject'] = str_replace('%subject%', $data['subject'] ?? '', $mailTemplate['subject']);

        $mailTemplate['mail_content'] = str_replace('%subject%', $data['subject'] ?? '', $mailTemplate['mail_content']);

        $mailTemplate['mail_content'] = str_replace('%ticketId%', $ticketId ?? '', $mailTemplate['mail_content']);

        $mailTemplate['mail_content'] = str_replace('%message%', $message ?? '', $mailTemplate['mail_content']);

        $mailTemplate['mail_content'] = str_replace('%assignee_email%', $data['assignee_email'] ?? '', $mailTemplate['mail_content']);

        $mailTemplate['mail_content'] = str_replace('%assigneeAndStatus%',$data['assigneeAndStatus'] ?? '' ,$mailTemplate['mail_content']);

        $from_mail      =  "";
        $to_mail        =  $to_email;
        $cc_string      =  "";
        $subject        =  $mailTemplate['subject']      ;
        $message        =  $mailTemplate['mail_content'] ;
        $attachments    =  "";
        $reply_to       =  "";
        $bcc_string     =  "";

        $res = MailHelper::send_email(['from_mail' => $from_mail, 'mail' => $to_mail , 'cc' => $cc_string, 'subject' => $subject, 'message' => $message, 'attachments' => $attachments, 'reply_to' => $reply_to, 'bcc' => $bcc_string]);

    }


}