Current File : /home/sanghavirealty/public_html/appazwer/Livewire/CaptchaComponent.php
<?php

namespace App\Livewire;

use Livewire\Component;
use Livewire\Attributes\On;
use Illuminate\Support\Facades\Session;


class CaptchaComponent extends Component
{
    public $captcha;
    public $captchaImage;
    public $mathCaptcha;
    public $currentCaptchaType = 'image';

    public function mount()
    {
        $this->toggleCaptchaType();
    }

    public function toggleCaptchaType()
    {
        $types = ['image', 'image'];
        $this->currentCaptchaType = $types[array_rand($types)];

        if ($this->currentCaptchaType === 'math') {
            $this->generateMathCaptcha();
        } else {
            $this->generateImageCaptcha();
        }

//   $this->generateImageCaptcha();


        $this->reset('captcha');
    }

    public function generateImageCaptcha()
    {
        $chars = 'abcdefghjkmnpqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ23456789';
        $captchaText = substr(str_shuffle($chars), 0, 6);
        session(['captcha_answer' => $captchaText]);

        $width = 250;
        $height = 80;
        $image = imagecreatetruecolor($width, $height);
        
        // Background color
        $bgColor = imagecolorallocate($image, 255, 255, 255);
        imagefilledrectangle($image, 0, 0, $width, $height, $bgColor);

        // Add thick, wavy multi-colored lines
        for ($i = 0; $i < 10; $i++) {
            $lineColor = imagecolorallocate($image, rand(100, 200), rand(100, 200), rand(100, 200));
            imagesetthickness($image, rand(3, 8));

            $x1 = 0;
            $y1 = rand(0, $height);
            $x2 = $width;
            $y2 = rand(0, $height);

            $steps = 20;
            for ($j = 0; $j < $steps; $j++) {
                $cx1 = $x1 + ($x2 - $x1) * ($j / $steps);
                $cy1 = $y1 + ($y2 - $y1) * ($j / $steps) + sin($j * M_PI / 5) * rand(5, 15);
                
                $cx2 = $x1 + ($x2 - $x1) * (($j + 1) / $steps);
                $cy2 = $y1 + ($y2 - $y1) * (($j + 1) / $steps) + sin(($j + 1) * M_PI / 5) * rand(5, 15);
                
                imageline($image, $cx1, $cy1, $cx2, $cy2, $lineColor);
            }
        }

        // Add octopus style semi-transparent clouded pebbles
        for ($i = 0; $i < 10; $i++) {
            $alpha = rand(60, 100);
            $pebbleColor = imagecolorallocatealpha($image, rand(150, 250), rand(150, 250), rand(150, 250), $alpha);
            $sizeX = rand(30, 80);
            $sizeY = rand(30, 80);
            $x = rand(0, $width);
            $y = rand(0, $height);
            imagefilledellipse($image, $x, $y, $sizeX, $sizeY, $pebbleColor);
            
            imagefilter($image, IMG_FILTER_GAUSSIAN_BLUR);
        }

        // Add background noise dots with bigger grains
        for ($i = 0; $i < 1000; $i++) {
            $dotColor = imagecolorallocate($image, rand(150, 200), rand(150, 200), rand(150, 200));
            imagesetthickness($image, rand(1, 3));
            imagesetpixel($image, rand(0, $width), rand(0, $height), $dotColor);
        }

        // Place characters with controlled spacing and slight distortion
        $font = public_path('fonts/arial.ttf');
        $fontSize = 45;
        $x = 10;

        for ($i = 0; $i < strlen($captchaText); $i++) {
            $letter = $captchaText[$i];
            
            $angle = rand(-15, 15);
            $y = rand($height / 2 + 5, $height - 15);
            
            // Draw each character multiple times with a slight offset to create a grainy, translucent effect
            for ($j = 0; $j < 15; $j++) {
                $alpha = rand(40, 90);
                $textColor = imagecolorallocatealpha($image, rand(50, 150), rand(50, 150), rand(50, 150), $alpha);
                
                $offsetX = rand(-1, 1);
                $offsetY = rand(-1, 1);
                
                imagettftext($image, $fontSize, $angle, $x + $offsetX, $y + $offsetY, $textColor, $font, $letter);
            }

            // Adjust x for next character with controlled, intentional overlap
            $bbox = imagettfbbox($fontSize, 0, $font, $letter);
            $charWidth = abs($bbox[2] - $bbox[0]);
            $x += $charWidth + rand(-10, -1); // This range creates consistent overlap
        }
        
        imagefilter($image, IMG_FILTER_SMOOTH, 5);
        imagefilter($image, IMG_FILTER_GAUSSIAN_BLUR, 2);

        ob_start();
        imagepng($image);
        $imageData = ob_get_clean();
        imagedestroy($image);

        $this->captchaImage = 'data:image/png;base64,' . base64_encode($imageData);
    }

    public function generateMathCaptcha()
    {
        $num1 = rand(1, 20);
        $num2 = rand(1, 20);
        $result = $num1 + $num2;
        $this->mathCaptcha = "$num1 + $num2";
        session(['captcha_answer' => $result]);
    }

    public function render()
    {
        return view('livewire.captcha-component');
    }
}