woocommerce-advanced-ordernumbers.php 37.1 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
<?php
/**
 * Plugin Name: Advanced Ordernumbers
 * Plugin URI: http://open-tools.net/WooCommerce/Advanced-Ordernumbers.php
 * Description: Lets the user freely configure the order numbers in WooCommerce.
 * Version: 0.1.0
 * Author: Open Tools, Reinhold Kainhofer
 * Author URI: http://open-tools.net
 * Text Domain: woocommerce-advanced-ordernumbers
 * Domain Path: 
 * License: GPL2+
 WC requires at least: 2.2
WC tested up to: 2.3
*/

/**
17
 * The structure of this plugin originally followed the tutorial, although much of the plugin has been rewritten since then:
18
 * http://www.yaconiello.com/blog/how-to-write-wordpress-plugin/
19
 * A lot of coding ideas were also taken directly from the way things are implemented in WooCommerce itself.
20 21 22 23 24 25 26 27 28 29 30 31 32 33
 */
 
if ( ! defined( 'ABSPATH' ) ) { 
	exit; // Exit if accessed directly
}
/**
 * Check if WooCommerce is active
 **/
if ( in_array( 'woocommerce/woocommerce.php', apply_filters( 'active_plugins', get_option( 'active_plugins' ) ) ) ) {
    // Put your plugin code here
    // Load the language files

	if (!class_exists("OpenToolsOrdernumbers")) {
		class OpenToolsOrdernumbers {
34
			public $ordernumber_meta = "_order_number";
35 36
			public $ordernumber_new_placeholder = "[New Order]";
			public $ordernumber_counter_prefix = 'ordernumber-counter-';
37
			
38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60
			
			/**
			 * STATIC HELPER FUNCTIONS, WooCommerce-specific
			 */
			public static function __($string) {
				return __($string, 'opentools-advanced-ordernumbers');
			}
			public static function rel_url($file) {
				return plugins_url($file, __FILE__);
			}
			public static function img_url($img) {
				return self::rel_url('assets/images/'.$img );
			}
			public static function css_url($css) {
				return self::rel_url('assets/css/'.$css );
			}
			public static function js_url($js) {
				return self::rel_url('assets/js/'.$js );
			}
			
			
			
			
61 62 63 64 65
			/**
			 * Construct the plugin object
			 */
			public function __construct()
			{
66
				$plugin = plugin_basename(__FILE__); 
67
				load_plugin_textdomain('opentools-ordernumbers', false, basename( dirname( __FILE__ ) ) . '/languages' );
68 69 70 71 72


				// Init settings
				$this->settings = array(
					array(
73 74
						'name' 		=> self::__( 'Advanced Order Numbers'),
						'desc'		=> self::__( 'Configure the format and the counters of the order numbers in WooCommerce.'),
75 76 77 78 79
						'type' 		=> 'title',
						'id' 		=> 'ordernumber_options'
					),

					array(
80 81
						'name' 		=> self::__( 'Customize Order Numbers'),
						'desc' 		=> self::__( 'Check to use custom order numbers rather than the default wordpress post ID.'),
82 83 84 85 86
						'id' 		=> 'customize_ordernumber',
						'type' 		=> 'checkbox',
						'default'	=> 'no'
					),
					array(
87
						'title'		=> self::__( 'Order number format'),
88
						'desc' 		=> self::__( 'The format for the order numbers (variables can be entered as [...], the counter is indicated by the #). To use a different counter name than displayed, put the custom counter name after a |, e.g. "[year]-[month]/#|[year]" to use the month in the order number, but reset the counter only yearly. Advanced settings for the counter can be added as [#####:start/step], e.g. [#:100] to start new counters at 100, or [#/5] to increment the counter by 5. The number of # in the format determine how many digits are shown at least, e.g. [########] will always show at least 8 digits for the counter, e.g. 00000014.'),
89 90 91 92
						'desc_tip'	=> true,
						'id' 		=> 'ordernumber_format',
						'default'	=> '#',
						'type' 		=> 'text',
93
						'css'		=> 'width: 100%',
94 95
					),
					array(
96 97
						'title'		=> self::__( 'Use global counter'),
						'desc' 		=> self::__( 'A global counter is independent of the number format and will never reset. A non-global counter runs within the number format and will start from the inital value whenever any of the variables used in the format changes (to be precise: a new counter will be used, so it is possible to have multiple counters running in parallel).'),
98
						'desc_tip'	=> true,
99 100
						'id' 		=> 'ordernumber_global',
						'type' 		=> 'checkbox',
101
						'default'	=> 'no',
102
					),
103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126
// 					array(
// 						'title' 	=> self::__( 'Counter Digits'),
// 						'desc' 		=> self::__( 'Minimum number of digits for the number'),
// 						'desc_tip'	=> true,
// 						'id' 		=> 'ordernumber_padding',
// 						'type' 		=> 'number',
// 						'default'	=> '0'
// 					),
// 					array(
// 						'title' 	=> self::__( 'Counter Start'),
// 						'desc' 		=> self::__( 'Start value for each new counter'),
// 						'desc_tip'	=> true,
// 						'id' 		=> 'ordernumber_start',
// 						'type' 		=> 'number',
// 						'default'	=> '1'
// 					),
// 					array(
// 						'title'		=> self::__( 'Counter step'),
// 						'desc' 		=> self::__( 'By how much the counter will be increased after each order. Typically 1.'),
// 						'desc_tip'	=> true,
// 						'id' 		=> 'ordernumber_step',
// 						'type' 		=> 'number',
// 						'default'	=> '1'
// 					),
127 128 129
					array( 'type' => 'sectionend', 'id' => 'ordernumber_options' ),
					
					// TODO: customize order password, and other numbers!
130 131

					array(
132 133
						'name' 		=> self::__( 'Custom Variables'),
						'desc'		=> self::__( 'Define your own (conditional) variables for use in the number formats'),
134 135 136 137 138 139 140 141 142 143
						'type' 		=> 'title',
						'id' 		=> 'ordernumber_variables'
					),
					array(
						'id' 		=> 'ordernumber_variables',
						'type' 		=> 'ordernumber_variables',
					),
					array( 'type' => 'sectionend', 'id' => 'ordernumber_variables' ),

					array(
144
						'name' 		=> self::__( 'Current Counters'),
145 146 147 148
						'type' 		=> 'title',
						'id' 		=> 'ordernumber_counters'
					),
					array(
149 150
						'name' 		=> self::__( 'All Ordernumber Counters'),
						'desc'		=> self::__( 'View and modify the current counter values. The counter value is the value used for the previous number. All changes are immediately applied!'),
151
						'desc_tip'	=> true,
152 153 154 155 156
						'id' 		=> 'ordernumber_counters',
						'type' 		=> 'ordernumber_counters',
					),
					array( 'type' => 'sectionend', 'id' => 'ordernumber_counters' ),

157 158 159 160 161
				);
				// Default options

				add_option ('customize_ordernumber', '0');
				add_option ('ordernumber_format',    "#");
162 163 164 165
				add_option ('ordernumber_global',    'no');
// 				add_option ('ordernumber_padding',   '1');
// 				add_option ('ordernumber_start',     '1');
// 				add_option ('ordernumber_step',      '1');
166
				
167
 				add_option ('ordernumber_variables',  array());
168

169 170 171 172
				// register filters and actions
				
				// CONFIGURATION SCREENS
				add_filter( 'woocommerce_get_sections_checkout',                array($this, 'add_admin_section'));
173
				// The checkout settings page assumes all subpages are payment gateways, so we have to override this and manually pass our settings:
174 175 176
				add_action( 'woocommerce_settings_checkout',                    array( $this, 'settings_output' ) );
				add_action( 'woocommerce_settings_save_checkout',               array( $this, 'settings_save' ) );
				add_action( 'woocommerce_admin_field_ordernumber_counters',     array( $this, 'admin_field_counters' ) );
177 178
				add_action( 'woocommerce_admin_field_ordernumber_variables',    array( $this, 'admin_field_variables' ) );
				add_action( 'pre_update_option_ordernumber_variables',          array( $this, 'update_option_variables'));
179 180 181 182 183 184 185 186 187

				add_action( 'admin_print_styles-woocommerce_page_wc-settings',  array($this, 'print_admin_styles'));
				add_action( 'admin_print_scripts-woocommerce_page_wc-settings', array($this, 'print_admin_scripts'));
				
				// AJAX counter modifications
				add_action( 'wp_ajax_set_counter',    array($this, 'counter_set_callback') );
				add_action( 'wp_ajax_add_counter',    array($this, 'counter_add_callback') );
				add_action( 'wp_ajax_delete_counter', array($this, 'counter_delete_callback') );

188 189
				// Add the ordernumber post meta to the search in the backend
				add_filter( 'woocommerce_shop_order_search_fields', array($this, 'order_search_fields'));
190 191 192
				// Sort the order list in the backend by order number rather than ID, make sure this is called LAST so we modify the defaults passed as arguments
				add_filter( 'manage_edit-shop_order_sortable_columns', array( $this, 'modify_order_column_sortkey' ), 9999 );

193 194 195 196
				// When a new order is created, we immediately assign the order number:
				add_action( 'wp_insert_post', array(&$this, 'check_create_ordernumber'), 10, 3);
				add_action( 'save_post', array(&$this, 'check_create_ordernumber'), 10, 3);
				// The filter to actually return the order number for the given order
197
				add_filter ('woocommerce_order_number', array(&$this, 'get_ordernumber'), 10, 2/*<= Also get the order object! */);
198 199
			}
    
200 201
			// Activate the plugin
			public static function activate() {}
202
    
203 204 205
			// Deactivate the plugin
			public static function deactivate() {}

206 207 208 209
			/**
			 * Insert our own section in the checkout setting page. Rearrange the sections array to make sure our settings
			 * come second place, directly after the default page with the '' key and before all the payment gateways
			 */
210
			function add_admin_section($sections) {
211 212 213 214
				$newsections = array();
				foreach ($sections as $sec => $name ) {
					$newsections[$sec] = $name;
					if ($sec == '') {
215
						$newsections['ordernumber'] = self::__('Order Numbers');
216 217 218
					}
				}
				return $newsections;
219 220
			}
			
221
			public function settings_output() {
222 223 224 225 226
				global $current_section;
				if ($current_section == 'ordernumber') {
					$settings = $this->settings;
					WC_Admin_Settings::output_fields( $settings );
				}
227 228
			}

229
			public function settings_save() {
230 231 232 233 234
				global $current_section;
				if ($current_section == 'ordernumber') {
					$settings = $this->settings;
					WC_Admin_Settings::save_fields( $settings );
				}
235
			}
236
			
237 238 239 240
			/** 
			 * Print the CSS for the counter values and counter variables tables to the page header in the WC backend admin setting page
			 */
			public function print_admin_styles () {
241
				wp_register_style ( 'ordernumber-counter-style',  self::css_url('ordernumber-counter.css') );
242
				wp_enqueue_style('ordernumber-counter-style');
243

244
				wp_register_style ( 'ordernumber-variables-style',  self::css_url('ordernumber-variables.css') );
245
				wp_enqueue_style('ordernumber-variables-style');
246 247 248 249 250 251
			}
			/** 
			 * Print the JS for the counter values and counter variables tables to the page header in the WC backend admin setting page
			 */
			public function print_admin_scripts() {
			
252
				wp_register_script( 'ordernumber-counter-script', self::js_url( 'ordernumber-counter.js',  __FILE__), array('jquery') );
253 254 255 256 257
				wp_enqueue_script( 'ordernumber-counter-script');
				
				// Handle the translations:
				$localizations = array( 'ajax_url' => admin_url( 'admin-ajax.php' ) );
				
258 259 260 261 262
				$localizations['ORDERNUMBER_JS_JSONERROR'] = self::__("Error reading response from server:");
				$localizations['ORDERNUMBER_JS_NOT_AUTHORIZED'] = self::__("You are not authorized to modify order number counters.");
				$localizations['ORDERNUMBER_JS_NEWCOUNTER'] = self::__("Please enter the format/name of the new counter:");
				$localizations['ORDERNUMBER_JS_ADD_FAILED'] = self::__("Failed adding counter {0}");
				$localizations['ORDERNUMBER_JS_INVALID_COUNTERVALUE'] = self::__("You entered an invalid value for the counter.\n\n");
263
				
264 265 266 267
				$localizations['ORDERNUMBER_JS_EDITCOUNTER'] = self::__("{0}Please enter the new value for the counter '{1}' (current value: {2}):");
				$localizations['ORDERNUMBER_JS_MODIFY_FAILED'] = self::__("Failed modifying counter {0}");
				$localizations['ORDERNUMBER_JS_DELETECOUNTER'] = self::__("Really delete counter '{0}' with value '{1}'?");
				$localizations['ORDERNUMBER_JS_DELETE_FAILED'] = self::__("Failed deleting counter {0}");
268 269 270

				// in JavaScript, object properties are accessed as ajax_object.ajax_url, ajax_object.we_value
				wp_localize_script( 'ordernumber-counter-script', 'ajax_ordernumber', $localizations );
271 272 273



274
				wp_register_script( 'ordernumber-variables-script', self::js_url( 'ordernumber-variables.js'), array('jquery') );
275
				wp_enqueue_script( 'ordernumber-variables-script');
276
			}
277

278 279 280 281
			/**
			 * Render the Custom Variables configuration table
			 */
			public function admin_field_variables($settings) {
282 283 284
				$variables = get_option( $settings['id'], array() );
				if (!is_array($variables)) {
					$variables = array();
285
				} ?>
286 287
		<tr valign="top">
		    <td class="forminp forminp-<?php echo sanitize_title( $settings['type'] ) ?>" colspan="2">
288 289 290 291 292 293 294 295 296 297
				<?php
					print $this->customvar_admin_table($settings['id'], $variables);
				?>
			</td>
		</tr> 
		<?php
			}
			
			protected function customvar_admin_table($id, $variables) { ?>
			
298
				<table id="ordernumber_variables_template" style="display:none">
299
					<?php echo $this->create_replacements_row_html($id, array(), 'disabled'); ?>
300 301 302 303
				</table>

				<table id="ordernumber_variables" class="ordernumber_variables widefat wc_input_table sortable" cellspacing="0">
					<?php
304 305
						$columns = array(
							'variables_ifvar'    => self::__( 'If variable ...'),
306
							'variables_ifop'     => '',
307 308 309 310
							'variables_ifval'    => self::__( 'Value'),
							'variables_then'     => self::__( ''),
							'variables_thenvar'  => self::__( 'Set variable ...'),
							'variables_thenval'  => self::__( 'to value ...'),
311 312
							'sort'     => '&nbsp;',
							'variables_settings' => '',
313
						);
314 315 316 317 318 319 320 321 322 323 324
					?>
					<thead>
						<tr>
							<?php
								foreach ( $columns as $key => $column ) {
									echo '<th class="' . esc_attr( $key ) . '">' . esc_html( $column ) . '</th>';
								}
							?>
						</tr>
						<tr id = "ordernumber-replacements-empty-row" class="oton-empty-row-notice <?php echo (empty($variables))?'':'rowhidden'; ?>">
							<td class="oton-empty-row-notice" colspan="8">
325 326
								<em> <?php echo self::__('No custom variables have been defined.'); ?></em>
								<input type="hidden" name="<?php echo $id; ?>" value="" <?php echo (empty($variables))?'':'disabled'; ?>>
327 328 329 330 331 332 333 334 335 336 337 338 339 340
							</td>
						</tr>
					</thead>
					<colgroup>
						<?php 
							foreach ($columns as $key => $column) {
								echo '<col class="' . esc_attr($key) . '" />';
							}
						?>
					</colgroup>

					<tbody>
						<?php
						foreach ($variables as $var) {
341
							echo $this->create_replacements_row_html($id, $var);
342 343 344 345 346 347
						} ?>
					</tbody>
					<tfoot>
						<tr class='addreplacement_row'>
							<td colspan=8 class='variable_add'>
								<div class='ordernumber-variables-addbtn ordernumber-btn' onClick="ordernumberVariablesAddRow('ordernumber_variables_template', 'ordernumber_variables')">
348 349
									<div class='ordernumber-ajax-loading'><img src='<?php echo self::img_url( 'icon-16-new.png' ); ?>' class='ordernumber-counter-addbtn' /></div>
									<?php _e('Add new custom variable'); ?>
350 351 352 353 354
								</div>
							</td>
						</tr>
					</tfoot>
				</table>
355
				<?php
356 357 358 359 360 361
			}

			protected function create_replacements_row_html($name, $values = array(), $disabled = '') {
				$operator = (isset($values['conditionop'])?$values['conditionop']:'');
				$operators = array(
					'equals'       => '=', 
362
					'contains'     => self::__('contains'), 
363 364 365 366
					'smaller'      => '<',
					'smallerequal' => '<=',
					'larger'       => '>',
					'largerequal'  => '>=', 
367 368
					'startswith'   => self::__('starts with'),
					'endswith'     => self::__('ends with'),
369 370 371 372 373 374 375 376 377 378 379 380 381 382
				);
				$html  = '
				<tr>
					<td class="oton-replacement-variable"><input name="' . $name . '[conditionvar][]" value="' . (isset($values['conditionvar'])?$values['conditionvar']:'') . '" ' . $disabled . '/></td>
					<td class="oton-replacement-op"      ><select name="' . $name . '[conditionop][]" ' . $disabled . '>';
				foreach ($operators as $op => $opname) {
					$html .= '		<option value="' . esc_attr($op) . '" ' . (($op === $operator)?'selected':'') . '>' . esc_html($opname) . '</option>';
				}
				$html .= '</td>
					<td class="oton-replacement-value"   ><input name="' . $name . '[conditionval][]" value="' . (isset($values['conditionval'])?$values['conditionval']:'') . '" ' . $disabled . '/></td>
					<td>=></td>
					<td class="oton-replacement-variable"><input name="' . $name . '[newvar][]"       value="' . (isset($values['newvar'])?$values['newvar']:'') .       '" ' . $disabled . '/></td>
					<td class="oton-replacement-newvalue"><input name="' . $name . '[newval][]"       value="' . (isset($values['newval'])?$values['newval']:'') .       '" ' . $disabled . '/></td>
					<td class="sort">&nbsp;</td>
383
					<td><img src="' . self::img_url( 'icon-16-delete.png' ) . '" class="ordernumber-replacement-deletebtn ordernumber-btn"></td>
384 385 386
				</tr>';
				return $html;
			}
387
			
388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405
			/** 
			 * Store the variable replacements array into the options. Need to transpose the array before we can store it into the options...
			 * This filter is called directly before the option is saved.
			 */
			public function update_option_variables ($value) {
				if (!is_array($value)) 
					return array();
				$keys = array_keys($value);
				$vallist = array();
				
				foreach (array_keys($value[$keys[0]]) as $i) {
					$entry = array();
					foreach ($keys as $k) {
						$entry[$k] = $value[$k][$i];
					}
					$vallist[] = $entry;
				}
				return $vallist;
406
			}
407

408 409 410 411 412
			
			/**
			 * Render the Counter Values modification table
			 */
			public function admin_field_counters ($settings) {
413 414 415 416
				// Description handling
				$field_description = WC_Admin_Settings::get_field_description( $settings );
				extract( $field_description );

417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433
				// First, get all counter names:
				$counters = array();
				$pfxlen = strlen($this->ordernumber_counter_prefix );
				foreach (wp_load_alloptions() as $name => $value) {
					if (substr($name, 0, $pfxlen) == $this->ordernumber_counter_prefix) {
						$parts = explode('-', substr($name, $pfxlen), 2);
						if (sizeof($parts)==1) {
							array_unshift($parts, 'ordernumber');
						}
						$counters[] = array(
							'type' => $parts[0],
							'name' => $parts[1],
							'value' => $value,
						);
					}
				} 
				?>
434

435 436
				
		<tr valign="top">
437 438 439 440 441
			<th scope="row" class="titledesc">
				<label for="<?php echo esc_attr( $settings['id'] ); ?>"><?php echo esc_html( $settings['title'] ); ?></label>
				<?php echo $tooltip_html; ?>
			</th>
		    <td class="forminp forminp-<?php echo sanitize_title( $settings['type'] ) ?>">
442
				<img src='<?php echo self::img_url( 'loading.gif' ); ?>' class='wc-ordernumber-loading' style="display: none; position: absolute; top: 2px; left: 0px; z-index: 9999;"/>
443 444 445
				<table class="wc_ordernumber_counters widefat" cellspacing="0">
					<?php
						$columns = apply_filters( 'woocommerce_ordernumber_counters_columns', array(
446 447 448
							'type'     => self::__( ''),
							'name'     => self::__( 'Counter name'),
							'value'    => self::__( 'Counter value'),
449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470
							'settings' => ''
						) );
					?>
					<thead>
						<tr>
							<?php
								foreach ( $columns as $key => $column ) {
									echo '<th class="counter_' . esc_attr( $key ) . '">' . esc_html( $column ) . '</th>';
								}
							?>
						</tr>
					</thead>
					<colgroup>
						<?php 
							foreach ($columns as $key => $column) {
								echo '<col class="counter_' . esc_attr($key) . '" />';
							}
						?>
					</colgroup>

					<tbody>
						<?php
471 472 473 474
						foreach ($counters as $counter) {
							echo $this->create_admin_counter_row($counter['type'], $counter['name'], $counter['value']);
						} 
						?>
475 476 477 478 479
					</tbody>
					<tfoot>
						<tr class='addcounter_row'>
							<td class="counter_type"></td>
							<td colspan=3 class='counter_add'>
480
								<div class='ordernumber-counter-addbtn ordernumber-btn' onClick="ajaxAddCounter(this, 'ordernumber')">
481 482
									<div class='ordernumber-ajax-loading'><img src='<?php echo self::img_url( 'icon-16-new.png' ); ?>' class='ordernumber-counter-addbtn' /></div>
									<?php _e('Add new counter'); ?>
483 484 485 486 487 488 489 490 491 492
								</div>
							</td>
						</tr>
					</tfoot>
				</table>
			</td>
		</tr> 
		<?php
			}
			
493 494 495
			public function create_admin_counter_row ($type, $format, $value=0) {
				$html =	"
					<tr class='counter_row counter_type_" . $type . "'>
496 497
						<td class='counter_type'>" . self::__($type, 'wooocommerce-advanced-ordernumbers' ) . "</td>
						<td class='counter_format'>" . (empty($format)?("<i>".self::__("[Global]")."</i>"):esc_html($format)) . "</td>
498 499 500
						<td class='counter_value'>" . esc_html($value) . "</td>
						<td class='counter_buttons'>
							<div class='ordernumber-ajax-loading'>
501
							<img src='" . self::img_url( 'icon-16-edit.png' ) . "' 
502 503 504 505
										class='ordernumber-counter-editbtn ordernumber-btn' 
										onClick='ajaxEditCounter(this, " . json_encode($type) . ", " . json_encode($format) . ", " . json_encode($value) . ")' />
							</div>
							<div class='ordernumber-ajax-loading'>
506
								<img src='" . self::img_url( 'icon-16-delete.png' ) . "' 
507 508 509 510 511 512 513
										class='ordernumber-counter-deletebtn ordernumber-btn' 
										onClick='ajaxDeleteCounter(this, " . json_encode($type) . ", " . json_encode($format) . ", " . json_encode($value) . ")' />
							</div>
						</td>
					</tr>";
				return $html;
			}
514 515
			
			
516 517 518 519 520 521 522 523
			/** 
			 * Hook to add the order numer post meta field to the searchable field 
			 * (so the admin can search for the order number in the backend)
			 */
			public function order_search_fields($fields) {
				$fields[] = $this->ordernumber_meta;
				return $fields;
			}
524 525 526 527 528 529 530 531 532 533 534
			
			/**
			 * Sort the order list's "Order" column by our post meta rather than by ID
			 */
			public function modify_order_column_sortkey($columns) {
				$custom = array(
					'order_title' => $this->ordernumber_meta,
				);
				// Use the passed columns as "default", so effectively, only the order_title will be changed:
				return wp_parse_args ($custom, $columns);
			}
535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552
			
			/** 
			 * Handle new posts created in the frontend. This action will be called for all posts, 
			 * not only for orders, so we need to check explicitly. Also, this function will be called
			 * for order updates, so we need to check the update argument, too.
			 */
			public function check_create_ordernumber($post_id, $post, $update) {
				// Is the post really an order?
				// Order numbers are only assigned to orders on creation, not when updating!
				if ($post->post_type != 'shop_order') {
					return;
				} else {
					// Handle new admin-created orders, where the address is entered later on!
					// Assign an order number:
					$number = $this->assign_new_ordernumber($post_id, $post, $update);
				}
				
			}
553

554
			/**
555
			 * Counter handling (simple loading/storing counters), storing them as options
556
			 */
557
			function _getCounter($type, $format, $start=0) {
558
				$count = get_option ($this->ordernumber_counter_prefix.$type.'-'.$format, $start);
559 560 561 562
				return $count;
			}
			// Insert new counter value into the db or update existing one
			function _setCounter($type, $format, $value) {
563
				return update_option($this->ordernumber_counter_prefix.$type.'-'.$format, $value);
564
			}
565 566 567
			function _deleteCounter($type, $format) {
				return delete_option($this->ordernumber_counter_prefix.$type.'-'.$format);
			}
568
			
569 570 571 572 573 574 575 576 577
			public function counter_delete_callback() {
				$json = array('action' => 'delete_counter', 'success' => 0);
				$json['success'] = $this->_deleteCounter($_POST['nrtype'], $_POST['counter']);
				wp_send_json($json);
			}

			public function counter_add_callback () {
				$type = $_POST['nrtype'];
				$format = $_POST['counter'];
578
				$value = isset($_POST['value'])?$_POST['value']:"0";
579 580 581
				$json = array('action' => 'add_counter', 'success' => 0);
				if ($this->_getCounter($type, $format, -1) != -1) {
					// Counter already exists => error message
582
					$json['error'] = sprintf(self::__('Counter "%s" already exists, cannot create again.'), $format);
583 584 585 586 587 588 589 590 591 592 593 594
				} else {
					$json['success'] = $this->_setCounter($type, $format, $value);
					$json['newrow']  = $this->create_admin_counter_row($type, $format, $value);
				}
				wp_send_json($json);
			}
			
			public function counter_set_callback () {
				$json = array('action' => 'set_counter', 'success' => 0);
				$json['success'] = $this->_setCounter($_POST['nrtype'], $_POST['counter'], $_POST['value']);
				wp_send_json($json);
			}
595
			
596 597 598 599 600 601 602
			
			
			/** ***********************************************************
			 * 
			 *  REPLACEMENT FUNCTIONS
			 *
			 **************************************************************/
603 604 605 606 607 608 609 610 611
			
			/* Return a random "string" of the given length taken from the given alphabet */
			static function randomString($alphabet, $len) {
				$alen = strlen($alphabet);
				$r = "";
				for ($n=0; $n<$len; $n++) {
					$r .= $alphabet[mt_rand(0, $alen-1)];
				}
				return $r;
612 613
			}

614 615 616 617 618 619 620 621 622 623 624 625 626
			function replaceRandom ($match) {
				/* the regexp matches (random)(Type)(Len) as match, Type and Len is optional */
				$len = ($match[3]?$match[3]:1);
				// Fallback: If no Type is given, use Digit
				$alphabet = "0123456789";
				// Select the correct alphabet depending on Type
				switch (strtolower($match[2])) {
					case "digit": $alphabet = "0123456789"; break;
					case "hex": $alphabet = "0123456789abcdef"; break;
					case "letter": $alphabet = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"; break;
					case "uletter": $alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; break;
					case "lletter": $alphabet = "abcdefghijklmnopqrstuvwxyz"; break;
					case "alphanum": $alphabet = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"; break;
627
				}
628 629
				return self::randomString ($alphabet, $len);
			}
630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647
	
			protected function setupDateTimeReplacements (&$reps, $order, $nrtype) {
				$utime = microtime(true);
				$reps["[year]"] = date ("Y", $utime);
				$reps["[year2]"] = date ("y", $utime);
				$reps["[month]"] = date("m", $utime);
				$reps["[day]"] = date("d", $utime);
				$reps["[hour]"] = date("H", $utime);
				$reps["[hour12]"] = date("h", $utime);
				$reps["[ampm]"] = date("a", $utime);
				$reps["[minute]"] = date("i", $utime);
				$reps["[second]"] = date("s", $utime);
				$milliseconds = (int)(1000*($utime - (int)$utime));
				$millisecondsstring = sprintf('%03d', $milliseconds);
				$reps["[decisecond]"] = $millisecondsstring[0];
				$reps["[centisecond]"] = substr($millisecondsstring, 0, 2);
				$reps["[millisecond]"] = $millisecondsstring;
			}
648

649 650 651 652
			protected function setupAddressReplacements(&$reps, $prefix, $address, $nrtype) {
				$reps["[email]"]     = $address->billing_email;
				$reps["[firstname]"] = $address->billing_first_name;
				$reps["[lastname]"]  = $address->billing_last_name;
653

654 655 656 657
				$reps["[company]"]   = $address->billing_company;
				$reps["[zip]"]       = $address->billing_postcode;
				$reps["[postcode]"]  = $address->billing_postcode;
				$reps["[city]"]      = $address->billing_city;
658
        
659 660
				$country = $address->billing_country;
				$state = $address->billing_state;
661 662
				$allcountries = WC()->countries->get_countries();
				$states = WC()->countries->get_states($country);
663
				$reps["[country]"]     = $country;
664 665
				$reps["[countryname]"] = ( isset( $allcountries[ $country ] ) ) ? $allcountries[ $country ] : $country;

666 667
				$reps["[state]"]       = $state;
				$reps["[statename]"]   = ( $country && $state && isset( $states[ $country ][ $state ] ) ) ? $states[ $country ][ $state ] : $state;
668 669 670 671 672 673 674 675
			}
			
			protected function setupStoreReplacements (&$reps, $order, $nrtype) {
			}
    
			protected function setupOrderReplacements (&$reps, $order, $nrtype) {
				$reps["[orderid]"] = $order->id;
				$reps["[ipaddress]"]   = $order->customer_ip_address;
676
				
677 678 679 680
				if ($nrtype != 'ordernumber') {
					$reps["[ordernumber]"] = $order->get_order_number();
				}
				$reps["[orderstatus]"] = $order->get_status();
681
				$reps["[currency]"]    = $order->get_order_currency();
682 683 684 685 686
				$reps["[userid]"]      = $order->get_user_id();

				$this->setupAddressReplacements($reps, "", $order, $nrtype);
	
				$reps["[articles]"]    = $order->get_item_count();
687 688
// 				$reps["[downloadpermitted]"] = $order->is_download_permitted();
// 				$reps["[hasdownloads]"] = $order->has_downloadable_item();
689
// 				$reps["[coupons]"] = $order->get_used_coupons();
690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715
				$reps["[ordertotal]"]      = $order->get_total();
				$reps["[amount]"]      = $order->get_total();
				$reps["[ordersubtotal]"]      = $order->get_subtotal();
				$reps["[totaltax]"]      = $order->get_total_tax();
				$reps["[totalshipping]"]      = $order->get_total_shipping();
			}
   
			protected function setupShippingReplacements(&$reps, $order, $nrtype) {
// 				$reps["[shippingmethod]"] = $order->getShippingMethod();
			}
			
			/*protected function setupInvoiceReplacements (&$reps, $invoice, $order, $nrtype) {
				$reps["[invoiceid]"] = $invoice->getId();
			}*/

			protected function setupReplacements($nrtype, $order) {
				$reps = array();
				$this->setupDateTimeReplacements($reps, $order, $nrtype);
				$this->setupStoreReplacements($reps, $order, $nrtype);
				$this->setupOrderReplacements($reps, $order, $nrtype);
				$this->setupShippingReplacements($reps, $order, $nrtype);
				$reps = apply_filters( 'opentools_ordernumber_replacements', $reps, $order, $nrtype);
				return $reps;
			}

			
716
			protected function setupCustomVariables ($nrtype, $order, $reps, $customvars) {
717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769
				foreach ($customvars as $c) {
					$conditionvar = strtolower($c['conditionvar']);
					$op = $c['conditionop'];

					$found = false;
					$match = false;
					$compareval = null;

					if (isset($reps[$conditionvar])) {
						$found = true;
						$compareval = $reps[$conditionvar];
					} elseif (isset($reps['['.$conditionvar.']'])) {
						$found = true;
						$compareval = $reps['['.$conditionvar.']'];
					}/* elseif ($order && $compareval = $order->getData($conditionvar)) {
						// TODO: Handle order property
						$found = true;
					}*/ else {
						// TODO: Handly other possible properties!
						// TODO: Print out warning that variable could not be found.
					}
					if ($found) {
						$condval = $c['conditionval'];
						switch ($op) {
							case 'equals': 
									$match = ($compareval == $condval); break;
							case 'contains':
									if (is_array($compareval)) {
										$match = in_array($condval, $compareval);
									} else {
										$match = strpos ($compareval, $condval);
									}
									break;
							case 'smaller':
									$match = ($compareval<$condval); break;
							case 'smallerequal':
									$match = ($compareval<=$condval); break;
							case 'larger':
									$match = ($compareval>$condval); break;
							case 'largerequal':
									$match = ($compareval>=$condval); break;
							case 'startswith':
									$match = (substr("$compareval", 0, strlen("$condval")) === "$condval"); break;
							case 'endswith':
									$match = (substr("$compareval", -strlen("$condval")) === "$condval"); break;
						}
					} elseif (empty($conditionvar)) {
						$match = true;
					}
					if ($match) {
						$varname = '['.strtolower($c['newvar']).']';
						$reps[$varname] = $c['newval'];
					}
770
				}
771 772
				return $reps;
			}
773

774
			// Allow the user to override the format like any other custom variable:
775
			protected function setupNumberFormatString($fmt, $type, $order, $reps) {
776 777 778 779 780 781 782
				if (isset($reps['['.$type.'_format]'])) {
					return $reps['['.$type.'_format]'];
				} else {
					return $fmt;
				}
			}
			
783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840
			protected function doReplacements ($fmt, $reps) {
				// First, replace all random...[n] fields. This needs to be done with a regexp and a callback:
				$fmt = preg_replace_callback ('/\[(random)(.*?)([0-9]*?)\]/', array($this, 'replaceRandom'), $fmt);
				return str_ireplace (array_keys($reps), array_values($reps), $fmt);
			}
			
			protected function extractCounterSettings ($fmt, $type, $ctrsettings) {
				// First, extract all counter settings, i.e. all strings of the form [#####:startval/increment] or [####/increment:startval]
				$regexp = '%\[(#+)(/([0-9]+))?(:([0-9]+))?(/([0-9]+))?\]%';
// 				$counters = array();
				
				if (preg_match($regexp, $fmt, $counters)) {
					// $counters is an array of the form:
					// Array (
					// 		[0] => [#####:100/3]
					// 		[1] => #####
					// 		[2] => 
					// 		[3] => 
					// 		[4] => :100
					// 		[5] => 100
					// 		[6] => /3
					// 		[7] => 3
					// )
					$ctrsettings["${type}_padding"] = strlen($counters[1]);
					if (!empty($counters[2])) {
						// $counters[2] contains the whole "/n" part, while $counters[3] contains just the step itself
						$ctrsettings["${type}_step"] = $counters[3]; 
					}
					if (!empty($counters[4])) {
						// $counters[4] contains the whole ":n" part, while $counters[5] contains just the start value itself
						$ctrsettings["${type}_start"] = $counters[5]; 
					}
					
					if (!empty($counters[6])) {
						// $counters[6] contains the whole ":n" part, while $counters[7] contains just the start value itself
						$ctrsettings["${type}_step"] = $counters[7]; 
					}
					
// print("<pre>Counters regexp matches: ".print_r($counters,1)."</pre>");
// 					$ctrsettings["${type}_padding"] = 
					$fmt = preg_replace($regexp, "#", $fmt);
				} else {
// print("<pre>No counters match the regexp '$regexp' in the format '$fmt'</pre>");
				}
				// Replace all extended counter definitions by a single #
				
				// Split at a | to get the number format and a possibly different counter increment format
				// If a separate counter format is given after the |, use it, otherwise reuse the number format itself as counter format
				
				
				$parts = explode ("|", $fmt);
				$ctrsettings["${type}_format"] = $parts[0];
				
				$ctrsettings["${type}_counter"] = ($ctrsettings["${type}_global"]=='yes')?"":$parts[(count($parts)>1)?1:0];
				
// print("<pre>Counter settings are: ".print_r($ctrsettings,1)."</pre>");
				return $ctrsettings;
			}
841 842

			/* replace the variables in the given format. $type indicates the type of number, currently only 'ordernumber', because WooCommerce does not support invoices or customer numbers. We might allow the shop owner to customize the order password, though. */
843 844 845 846 847 848 849 850 851 852 853 854 855 856
			function createNumber ($fmt, $type, $order, $customvars, $ctrsettings) {
				$reps   = $this->setupReplacements ($type, $order);
				$reps   = $this->setupCustomVariables ($type, $order, $reps, $customvars);
				$format = $this->setupNumberFormatString($fmt, $type, $order, $reps);
				$format = $this->doReplacements($format, $reps);
				$ctrsettings = $this->extractCounterSettings ($format, $type, $ctrsettings);
        
				$countername = $ctrsettings["${type}_counter"];
				// Look up the current counter
				$count = $this->_getCounter($type, $countername, $ctrsettings["${type}_start"] - $ctrsettings["${type}_step"]) + $ctrsettings["${type}_step"];
				$this->_setCounter($type, $countername, $count);
				// return the format with the counter inserted
				$number = str_replace ("#", sprintf('%0' . $ctrsettings["${type}_padding"] . 's', $count), $ctrsettings["${type}_format"]);
				return $number;
857 858
			}
			
859 860 861
			function create_ordernumber($orderid, $order, $type='ordernumber') {
				if (get_option('customize_'.$type, 'false')) {
					$fmt     = get_option ($type.'_format',  "#");
862 863 864 865 866 867 868 869 870 871 872
					$ctrsettings = array(
						"${type}_format"  => '',
						"${type}_counter" => '',
						"${type}_global"  => get_option ($type.'_global',  'no'),
						"${type}_padding" => 1,
						"${type}_step"    => 1,
						"${type}_start"   => 1,
// 						"${type}_padding" => get_option ($type.'_padding', 1),
// 						"${type}_step"    => get_option ($type.'_step',    1),
// 						"${type}_start"   => get_option ($type.'_start',   1),
					);
873
					$customvars = get_option ('ordernumber_variables',   array());
874

875
					$number = $this->createNumber ($fmt, $type, $order, $customvars, $ctrsettings);
876
					update_post_meta( $orderid, $this->ordernumber_meta, $number );
877 878 879 880 881
					return $number;
				} else {
					return $orderid;
				}
			}
882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903
			
			/** 
			 * The hook to assign a customized order number (unless the order already has one assigned)
			 */
			function assign_new_ordernumber($orderid, $order, $update=true) {
				if ((!$update) && ($order->post_status == 'auto-draft')) {
					// New order => assign placeholder, which will later be overwritten the real order number
					update_post_meta( $orderid, $this->ordernumber_meta, $this->ordernumber_new_placeholder );
				}
				// If we do not have an order (yet), we cannot proceed. But we probably have created the 
				// ordernumber placeholder for that post, so this function has done its job and we can return
				if (!$order instanceof WC_Order) {
					return;
				}
				$number = get_post_meta( $orderid, $this->ordernumber_meta, 'true');
				if ($number == $this->ordernumber_new_placeholder && $order->post_status != 'auto-draft') {
					$number = $this->create_ordernumber($orderid, $order, 'ordernumber');
					// Assign a new number
				}
				return $number;
			}

904 905 906 907
			/** 
			 * The hook to customize order numbers (requests the order number from the database; creates a new ordernumber if no entry exists in the database)
			 */
			function get_ordernumber($orderid, $order) {
908
				$stored_number = get_post_meta( $orderid, $this->ordernumber_meta, 'true');
909 910 911 912 913
				if ($stored_number == $this->ordernumber_new_placeholder) {
					// Check whether the order was now really created => create order number now
					return $this->assign_new_ordernumber($orderid, $order);
				} elseif (!empty($stored_number)) {
					// Order number already exists => simply return it
914
					return $stored_number;
915
				} else {
916
					// No order number was created for this order, so simply use the orderid as default.
917
					return $orderid;
918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933
				}
			}

		}
	}

	if (class_exists("OpenToolsOrdernumbers")) {
		// Installation and uninstallation hooks
		register_activation_hook(__FILE__, array('OpenToolsOrdernumbers', 'activate'));
		register_deactivation_hook(__FILE__, array('OpenToolsOrdernumbers', 'deactivate'));

		// instantiate the plugin class
		$ordernumber_plugin = new OpenToolsOrdernumbers();
	}
 
}