<?php

// (c) Copyright by authors of the Tiki Wiki CMS Groupware Project
//
// All Rights Reserved. See copyright.txt for details and a complete list of authors.
// Licensed under the GNU LESSER GENERAL PUBLIC LICENSE. See license.txt for details.

function wikiplugin_pdf_info()
{
    //including prefs to set global print settings as default value of parameters
    global $prefs;
     return [
                'name' => 'PluginPDF',
                'documentation' => 'PluginPDF',
                'description' => tra('For customized PDF generation, to override global PDF settings.'),
                'tags' => [ 'basic' ],
                'prefs' => [ 'wikiplugin_pdf' ],
                'format' => 'html',
                'iconname' => 'pdf',
                'introduced' => 17,
                'params' => [
                    'printfriendly' => [
                        'name' => tra('Print Friendly PDF'),
                        'description' => tra('Print friendly option will change theme background color to white and text /headings color to black. If set to \'n\', theme colors will be retained in pdf'),
                        'type' => 'list',
                        'default' => '',
                        'options' => [
                            ['text' => 'Default','value' => ''],
                            ['text' => 'Yes','value' => 'y'],
                            ['text' => 'No','value' => 'n'],
                        ],
                    ],
                    'orientation' => [
                        'name' => tra('PDF Orientation'),
                        'description' => tra('Landscape or portrait'),
                        'type' => 'list',
                        'default' => $prefs['print_pdf_mpdf_orientation'],
                        'options' => [
                            ['text' => 'Default','value' => ''],
                            ['text' => 'Portrait','value' => 'P'],
                            ['text' => 'Landscape','value' => 'L'],
                        ],

                    ],
                    'pagesize' => [
                    'name' => tra('PDF page size'),
                    'description' => tra('ISO Standard sizes: A0, A1, A2, A3, A4, A5 or North American paper sizes: Letter, Legal, Tabloid/Ledger (for ledger, select landscape orientation)'),
                    'type' => 'list',
                    'options' => [
                        ['text' => 'Default','value' => ''],
                        ['text' => 'Letter','value' => 'Letter'],
                        ['text' => 'Legal','value' => 'Legal'],
                        ['text' => 'Tabloid/Ledger','value' => 'Tabloid/Ledger'],
                        ['text' => 'A0','value' => 'A0'],
                        ['text' => 'A1','value' => 'A1'],
                        ['text' => 'A2','value' => 'A2'],
                        ['text' => 'A3','value' => 'A3'],
                        ['text' => 'A4','value' => 'A4'],
                        ['text' => 'A5','value' => 'A5'],
                        ['text' => 'A6','value' => 'A6']
                        ]
                    ],
                    'toc' => [
                        'name' => tra('Generate table of contents'),
                        'description' => tra('Set if table of contents will be autogenerated before PDF content'),
                        'type' => 'list',
                        'default' => $prefs['print_pdf_mpdf_toc'],
                        'options' => [
                            ['text' => 'Default','value' => ''],
                            ['text' => 'On','value' => 'y'],
                            ['text' => 'Off','value' => 'n'],
                        ],
                    ],
                    'toclinks' => [
                        'name' => tra('Link TOC with content'),
                        'description' => tra('Link TOC headings with content on PDF document'),
                        'type' => 'list',
                        'default' => 'n',
                        'options' => [
                            ['text' => 'Default','value' => ''],
                            ['text' => 'Yes','value' => 'y'],
                            ['text' => 'No','value' => 'n'],
                        ],
                    ],
                    'tocheading' => [
                        'name' => tra('TOC heading'),
                        'description' => tra('Heading to be appeared before table of content is printed'),
                        'tags' => ['advanced'],
                        'type' => 'text',
                        'default' => $prefs['print_pdf_mpdf_tocheading'],
                        'shorthint' => 'For example:Table of contents'
                    ],

                    'toclevels' => [
                        'name' => tra('TOC levels'),
                        'description' => tra('Will be autopicked from content of document, for example:<code>H1|H2|H3</code>'),
                        'tags' => ['advanced'],
                        'type' => 'text',
                        'default' => "H1|H2|H3",
                        'shorthint' => ''
                    ],
                    'pagetitle' => [
                        'name' => tra('Show Page title'),
                        'description' => tra('Print wiki page title with pdf'),
                        'tags' => ['advanced'],
                        'type' => 'list',
                        'default' => '',
                        'options' => [
                            ['text' => 'Default','value' => ''],
                            ['text' => 'Yes','value' => 'y'],
                            ['text' => 'No','value' => 'n']
                        ]
                    ],
                    'header' => [
                        'name' => tra('PDF header text'),
                        'description' => tra('Enter Wiki Syntax / HTML code / Plain text. <br /> Possible values: <code>Custom HTML / Wiki Syntax / text </code>, <code>{PAGENO}</code>, <code>{DATE j-m-Y}</code>, <code> Page {PAGENO} of {NB}, Left text| Center Text | Right Text</code>. <br />Set header value as <code>off</code>, to turn off header from page'),
                        'tags' => ['basic'],
                        'type' => 'text',
                        'default' => $prefs['print_pdf_mpdf_header'],
                    ],
                    'footer' => [
                        'name' => tra('PDF footer text'),
                        'description' => tra('Possible values: <code>HTML / Wiki Syntax / Plain text</code>,  <code>{include page="wiki_page_name"}</code> <code>{PAGENO}</code>, <code>{DATE j-m-Y}</code>. <br/> For example: <code>{PAGETITLE}|Center Text|{PAGENO}</code>, <code> Page {PAGENO} of {NB}</code>, <code>{include page="wiki_page_name"}</code>. <br /> Set footer value as <code>off</code>, to remove footer from page'),
                        'type' => 'text',
                        'default' => $prefs['print_pdf_mpdf_footer'],
                    ],
                    'margin_left' => [
                        'name' => tra('Left margin'),
                        'description' => tra('Numeric value.For example 10'),
                        'type' => 'text',
                        'default' => $prefs['print_pdf_mpdf_margin_left'],
                        'size' => '2',
                        'filter' => 'digits',
                    ],
                    'margin_right' => [
                        'name' => tra('Right margin'),
                        'description' => tra('Numeric value, no need to add px. For example 10'),
                        'type' => 'text',
                        'default' => $prefs['print_pdf_mpdf_margin_right'],
                        'size' => '2',
                        'filter' => 'digits',
                    ],
                    'margin_top' => [
                        'name' => tra('Top margin'),
                        'description' => tra('Numeric value, no need to add px. For example 10'),
                        'type' => 'text',
                        'default' => $prefs['print_pdf_mpdf_margin_top'],
                        'size' => '2',
                        'filter' => 'digits',
                    ],
                    'margin_bottom' => [
                        'name' => tra('Bottom margin'),
                        'description' => tra('Numeric value, no need to add px. For example 10'),
                        'type' => 'text',
                        'default' => $prefs['print_pdf_mpdf_margin_bottom'],
                        'size' => '2',
                        'filter' => 'digits',
                    ],
                    'margin_header' => [
                        'name' => tra('Header margin from top of document'),
                        'description' => tra('Only applicable if header is set. Numeric value only, no need to add px.Warning: Header can overlap text if top margin is not set properly'),
                        'type' => 'text',
                        'default' => $prefs['print_pdf_mpdf_margin_header'],
                        'size' => '2',
                        'filter' => 'digits',

                    ],
                    'margin_footer' => [
                        'name' => tra('Footer margin from bottom of document'),
                        'description' => tra('Only applicable if footer is set.Numeric value only, no need to add px. Warning: Footer can overlap text if bottom margin is not set properly'),
                        'type' => 'text',
                        'default' => $prefs['print_pdf_mpdf_margin_footer'],
                        'size' => '2',
                        'filter' => 'digits',
                    ],
                    'hyperlinks' => [
                        'name' => tra('Hyperlink behaviour in PDF'),
                        'description' => tra(''),
                        'tags' => ['advanced'],
                        'type' => 'list',
                        'default' => '',
                        'options' => [
                            ['text' => 'Default','value' => ''],
                            ['text' => 'Off (Links will be removed)','value' => 'off'],
                            ['text' => 'Add as footnote (Links will be listed at end of document)','value' => 'footnote'],
                        ]
                    ],
                    'autobookmarks' => [
                        'name' => tra('Generate PDF Bookmarks'),
                        'description' => tra('Values H1-H6,separated by | <code>For example H1|H2|H3</code>'),
                        'tags' => ['advanced'],
                        'type' => 'text',
                        'default' => 'h1|h2|h3',

                    ],
                    'columns' => [
                        'name' => tra('Number of columns'),
                        'description' => tra(''),
                        'tags' => ['advanced'],
                        'type' => 'list',
                        'default' => '',
                        'options' => [
                            ['text' => 'Default - 1 Column','value' => ''],
                            ['text' => '2 Columns','value' => '2'],
                            ['text' => '3 Columns','3'],
                            ['text' => '4 Columns','4'],
                        ]
                    ],
                    'password' => [
                        'name' => tra('PDF password for viewing'),
                        'description' => tra('Secure confidential PDF with password, leave blank if password protected is not needed'),
                        'type' => 'password',
                        'default' => $prefs['print_pdf_mpdf_password'],
                    ],
                    'watermark' => [
                        'name' => tra('Watermark text'),
                        'description' => tra('Watermark text value, for example: Confidential, Draft etc. '),
                        'type' => 'text',
                        'default' => '',
                    ],
                    'watermark_image' => [
                        'name' => tra('Watermark image, enter full URL'),
                        'description' => tra('Full URL of watermark image'),
                        'type' => 'text',
                        'default' => '',
                    ],
                    'background' => [
                        'name' => tra('Page background color'),
                        'description' => tra('Enter a valid CSS color code.'),
                        'type' => 'text',
                        'default' => '',
                    ],
                    'background_image' => [
                        'name' => tra('Page background image'),
                        'description' => tra('Enter the full URL.'),
                        'type' => 'text',
                        'default' => '',
                    ],
                    'coverpage_text_settings' => [
                        'name' => tra('CoverPage text settings'),
                        'description' => tra('<code>Heading|Subheading|Text Alignment|Background color|Text color|Page border|Border color</code>. Enter settings separated by <code>|</code>,sequence is important,leave blank for default. For example <code>{PAGETITLE}|Tikiwiki|Center|#fff|#000|1|#ccc</code>'),
                        'type' => 'text',
                        'default' => '',
                    ],
                    'coverpage_image_settings' => [
                        'name' => tra('Coverpage image URL'),
                        'description' => tra('Enter the full URL.'),
                        'type' => 'text',
                        'default' => '',
                    ],

                ],
        ];
}

function wikiplugin_pdf($data, $params)
{
    //return if not printing PDF
    if (! empty($_GET['display']) && strstr($_GET['display'], 'pdf') == '') {
        return;
    }
    //included globals to check mpdf selection as pdf generation engine
    global $prefs;

    //checking if mdpf is default PDF generation engine, since plugin is only set for mpdf.
    if ($prefs['print_pdf_from_url'] != 'mpdf') {
        return WikiParser_PluginOutput::internalError(tr('For pluginPDF, please select mpdf as default PDF engine from Print Settings.'));
    }
    $paramList = '';
    //creating string of data paramaters set by user
    foreach ($params as $paramName => $param) {
        $paramList .= $paramName . "='" . $param . "' ";
    }
    return "<pdfsettings " . $paramList . "></pdfsettings>";
}