<?php
date_default_timezone_set('Asia/Kolkata');

if (isset($_FILES['file']) && isset($_POST['email_id']) && isset($_POST['input_name'])) {
    $email_id = strtolower($_POST['email_id']);

    $upload_dir = './uploads/' . $email_id;
    if (!file_exists($upload_dir)) {
        mkdir($upload_dir, 0777, true);
    }

    $allowed_image_extensions = array('jpg', 'jpeg', 'png');
    $allowed_pdf_extensions = array('pdf');
    $file_ext = strtolower(pathinfo($_FILES['file']['name'], PATHINFO_EXTENSION));
    
    if (in_array($file_ext, $allowed_image_extensions) || in_array($file_ext, $allowed_pdf_extensions)) {
        $current_datetime = date('Y-m-d_h-i-sa');
        $new_file_name = $_POST['input_name'] . '_' . $current_datetime . '.' . $file_ext;
        $target_file = $upload_dir . '/' . $new_file_name;

        $max_image_size_kb = 60;
        $max_pdf_size_kb = 100;

        $file_size_kb = $_FILES['file']['size'] / 1024; // in KB
        
        if (in_array($file_ext, $allowed_image_extensions) && $file_size_kb > $max_image_size_kb) {
            $imagick = new Imagick($_FILES['file']['tmp_name']);
            
            $target_width = 800;
            $target_height = 0;
            
            $imagick->resizeImage($target_width, $target_height, Imagick::FILTER_LANCZOS, 1);
            
            $compression_quality = 70;
            $imagick->setImageCompressionQuality($compression_quality);
            
            $imagick->writeImage($target_file);
            
            $imagick->clear();
            $imagick->destroy();
        } elseif (in_array($file_ext, $allowed_pdf_extensions) && $file_size_kb > $max_pdf_size_kb) {
            // Open the PDF file
            $imagick = new Imagick();
            $imagick->setResolution(300, 300);
            $imagick->readImage($_FILES['file']['tmp_name']);
            
            $target_width = 800;
            $target_height = 0;
            
            $imagick->resizeImage($target_width, $target_height, Imagick::FILTER_LANCZOS, 1);
            
            $compression_quality = 70;
            
            $imagick->setImageCompression(Imagick::COMPRESSION_JPEG);
            $imagick->setImageCompressionQuality($compression_quality);
            
            $imagick->writeImage($target_file);
            
            $imagick->clear();
            $imagick->destroy();
        } else {
            move_uploaded_file($_FILES['file']['tmp_name'], $target_file);
        }

        $file_url = 'https://uploadocs.in/uploads/' . $email_id . '/' . $new_file_name;
        
        echo $file_url;
    } else {
        echo 'Error: Unsupported file format. Please upload an image file (jpg, jpeg, png) or a PDF.';
    }
}
?>