<?php
/*
Plugin Name: Test plugin
Description: A test plugin to demonstrate wordpress functionality with BuildVu
Author: Amy Pearson
Maintainer: Xinyu Zhang
Version: 2.0
*/

require_once(plugin_dir_path(__FILE__) . 'IDRCloudClient.php');
use IDRsolutions\IDRCloudClient;

add_action('admin_menu', 'test_plugin_setup_menu');

function test_plugin_setup_menu(){
    add_menu_page( 'Test Plugin Page', 'Test Plugin', 'manage_options', 'test-plugin', 'test_init' );
}

function test_init(){
    test_handle_post();
?>
    <h1>Hello World!</h1>
    <h2>Upload a File</h2>
    <!-- Form to handle the upload - The enctype value here is very important -->
    <form  method="post" enctype="multipart/form-data">
        <input type='file' id='test_upload_pdf' name='test_upload_pdf'></input>
        <?php submit_button('Upload') ?>
    </form>
<?php
}

function test_handle_post(){
    // First check if the file appears on the _FILES array
    if(isset($_FILES['test_upload_pdf'])){
        $pdf = $_FILES['test_upload_pdf'];

        // Use the wordpress function to upload
        // test_upload_pdf corresponds to the position in the $_FILES array
        // 0 means the content is not associated with any other posts
        $uploaded=media_handle_upload('test_upload_pdf', 0);
        // Error checking using WP functions
        if(is_wp_error($uploaded)){
            echo "Error uploading file: " . $uploaded->get_error_message();
        }else{
            echo "File upload successful!";
            test_convert($uploaded);
        }
    }
}

function test_convert($id) {
    // Get the file and post details
    $file = get_attached_file($id);
    $post = get_post($id);

    // Set the endpoint for the online converter
    $endpoint = "https://cloud.idrsolutions.com/cloud/" . IDRCloudClient::INPUT_BUILDVU;

    $filePath = realpath($file);
    $fileName = pathinfo($filePath, PATHINFO_FILENAME); // Get the filename without extension

     // This is where the output will be written to
    $outputdir = preg_replace("[\\/]", DIRECTORY_SEPARATOR, plugin_dir_path(__FILE__)) . "output" . DIRECTORY_SEPARATOR . $fileName . DIRECTORY_SEPARATOR;

    // Create the directory if it doesn't exist
    if (!file_exists($outputdir)) {
        mkdir($outputdir, 0777, true);
    }

    $conversion_params = array(
        'token' => $your_token,
        'input' => IDRCloudClient::INPUT_UPLOAD,
        'file' => $filePath
    );

    $results = IDRCloudClient::convert(array(
        'endpoint' => $endpoint,
        'parameters' => $conversion_params
    ));

    // This method is very important as it allows us access to the file system
    WP_Filesystem();

    IDRCloudClient::downloadOutput($results, $outputdir);

    $downloadUrl = $results['downloadUrl'];
    $basename = pathinfo($downloadUrl, PATHINFO_BASENAME);

    // Unzip the file
    $result = unzip_file($outputdir . $basename, $outputdir);
}