<?php

if ( ! defined( 'TADV_ADMIN_PAGE' ) ) {
	exit;
}

// TODO
if ( ! current_user_can( 'manage_options' ) ) {
	wp_die('Access denied');
}

$message = '';

$imgpath = TADV_URL . 'images/';
$tadv_options_updated = false;
$settings = $admin_settings = array();

if ( isset( $_POST['tadv-save'] ) ) {
	check_admin_referer( 'tadv-save-buttons-order' );
	$options_array = $admin_settings_array = $disabled_editors = $disabled_plugins = $plugins_array = array();

	// User settings
	for ( $i = 1; $i < 5; $i++ ) {
		$tb = 'tb' . $i;

		if ( $i > 1 && ! empty( $_POST[$tb] ) && is_array( $_POST[$tb] ) &&
			( $wp_adv = array_search( 'wp_adv', $_POST[$tb] ) ) !== false ) {
			// Remove the "Toolbar toggle" button from row 2, 3 or 4.
			unset( $_POST[$tb][$wp_adv] );
		}

		$buttons = $this->parse_buttons( $tb );
		// Layer plugin buttons??
		$buttons = str_replace( 'insertlayer', 'insertlayer,moveforward,movebackward,absolute', $buttons );
		$settings['toolbar_' . $i] = $buttons;
	}

	if ( ! empty( $_POST['advlist'] ) ) {
		$options_array[] = 'advlist';
	}

	if ( ! empty( $_POST['contextmenu'] ) ) {
		$options_array[] = 'contextmenu';
	}

	if ( ! empty( $_POST['advlink'] ) ) {
		$options_array[] = 'advlink';
	}

	if ( ! empty( $_POST['menubar'] ) ) {
		$options_array[] = 'menubar';
		$plugins_array = array( 'anchor', 'code', 'insertdatetime', 'nonbreaking', 'print', 'searchreplace',
			'table', 'visualblocks', 'visualchars' );
	}

	if ( ! empty( $_POST['fontsize_formats'] ) ) {
		$options_array[] = 'fontsize_formats';
	}

	// Admin settings, TODO
	if ( ! empty( $_POST['importcss'] ) ) {
		$admin_settings_array[] = 'importcss';
	}

	if ( ! empty( $_POST['no_autop'] ) ) {
		$admin_settings_array[] = 'no_autop';
	}

	if ( ! empty( $_POST['paste_images'] ) ) {
		$admin_settings_array[] = 'paste_images';
	}

	if ( ! empty( $_POST['disabled_plugins'] ) && is_array( $_POST['disabled_plugins'] ) ) {
		foreach( $_POST['disabled_plugins'] as $plugin ) {
			if ( in_array( $this->all_plugins, $plugin, true ) ) {
				$disabled_plugins[] = $plugin;
			}
		}
	}

	$enable_at = ( ! empty( $_POST['tadv_enable_at'] ) && is_array( $_POST['tadv_enable_at'] ) ) ? $_POST['tadv_enable_at'] : array();

	if ( ! array_key_exists( 'edit_post_screen', $enable_at ) ) {
		$disabled_editors[] = 'edit_post_screen';
	}

	if ( ! array_key_exists( 'rest_of_wpadmin', $enable_at ) ) {
		$disabled_editors[] = 'rest_of_wpadmin';
	}

	if ( ! array_key_exists( 'on_front_end', $enable_at ) ) {
		$disabled_editors[] = 'on_front_end';
	}

	// Admin options
	$admin_settings['options'] = implode( ',', $admin_settings_array );
	$admin_settings['disabled_plugins'] = implode( ',', $disabled_plugins );
	$admin_settings['disabled_editors'] = implode( ',', $disabled_editors );

	$this->admin_settings = $admin_settings;
	update_option( 'tadv_admin_settings', $admin_settings );

	// User options
	// TODO allow editors, authors and contributors some access
	$this->settings = $settings;
	$this->load_settings();

	// Special case
	if ( in_array( 'image', $this->used_buttons, true ) ) {
		$options_array[] = 'image';
	}

	$settings['options'] = implode( ',', $options_array );
	$this->settings = $settings;
	$this->load_settings();

	// Merge the submitted plugins buttons
	$settings['plugins'] = implode( ',', $this->get_plugins( $plugins_array ) );
	$this->settings = $settings;
	$this->plugins = $settings['plugins'];

	// Save the new settings. TODO: per user
	update_option( 'tadv_settings', $settings );

} elseif ( isset( $_POST['tadv-restore-defaults'] ) ) {
	check_admin_referer( 'tadv-save-buttons-order' );

	// TODO: only for admin || SA
	$this->admin_settings = $this->default_admin_settings;
	update_option( 'tadv_admin_settings', $this->default_admin_settings );

	// TODO: all users that can have settings
	$this->settings = $this->default_settings;
	update_option( 'tadv_settings', $this->default_settings );

	$message = '<div class="updated"><p>' .  __('Default settings restored.', 'tinymce-advanced') . '</p></div>';
} elseif ( isset( $_POST['tadv-export-settings'] ) ) {
	check_admin_referer( 'tadv-save-buttons-order' );

	$this->load_settings();
	$output = array( 'settings' => $this->settings );

	// TODO: only admin || SA
	$output['admin_settings'] = $this->admin_settings;

	?>
	<div class="wrap">
	<h2><?php _e( 'TinyMCE Advanced Settings Export', 'tinymce-advanced' ); ?></h2>

	<div class="tadv-import-export">
	<p>
	<?php _e( 'The settings are exported as a JSON encoded string.', 'tinymce-advanced' ); ?>
	<?php _e( 'Please copy the content and save it in a <b>text</b> (.txt) file, using a plain text editor like Notepad.', 'tinymce-advanced' ); ?>
	<?php _e( 'It is important that the export is not changed in any way, no spaces, line breaks, etc.', 'tinymce-advanced' ); ?>
	</p>

	<form action="">
		<p><textarea readonly="readonly" id="tadv-export"><?php echo json_encode( $output ); ?></textarea></p>
		<p><button type="button" class="button" id="tadv-export-select"><?php _e( 'Select All', 'tinymce-advanced' ); ?></button></p>
	</form>
	<p><a href=""><?php _e( 'Back to Editor Settings', 'tinymce-advanced' ); ?></a></p>
	</div>
	</div>
	<?php

	return;
} elseif ( isset( $_POST['tadv-import-settings'] ) ) {
	check_admin_referer( 'tadv-save-buttons-order' );

	// TODO: all users
	?>
	<div class="wrap">
	<h2><?php _e( 'TinyMCE Advanced Settings Import', 'tinymce-advanced' ); ?></h2>

	<div class="tadv-import-export">
	<p><?php _e( 'The settings are imported from a JSON encoded string. Please paste the exported string in the text area below.', 'tinymce-advanced' );	?></p>

	<form action="" method="post">
		<p><textarea id="tadv-import" name="tadv-import"></textarea></p>
		<p>
			<button type="button" class="button" id="tadv-import-verify"><?php _e( 'Verify', 'tinymce-advanced' ); ?></button>
			<input type="submit" class="button button-primary alignright" name="tadv-import-submit" value="<?php _e( 'Import', 'tinymce-advanced' ); ?>" />
		</p>
		<?php wp_nonce_field('tadv-import'); ?>
		<p id="tadv-import-error"></p>
	</form>
	<p><a href=""><?php _e( 'Back to Editor Settings', 'tinymce-advanced' ); ?></a></p>
	</div>
	</div>
	<?php

	return;
} elseif ( isset( $_POST['tadv-import-submit'] ) && ! empty( $_POST['tadv-import'] ) && is_string( $_POST['tadv-import'] ) ) {
	check_admin_referer( 'tadv-import' );

	// TODO: all users
	$import = json_decode( trim( wp_unslash( $_POST['tadv-import'] ) ), true );
	$settings = $admin_settings = array();

	if ( is_array( $import ) ) {
		if ( ! empty( $import['settings'] ) ) {
			$settings = $this->sanitize_settings( $import['settings'] );
		}

		// only admin || SA
		if ( ! empty( $import['admin_settings'] ) ) {
			$admin_settings = $this->sanitize_settings( $import['admin_settings'] );
		}
	}

	if ( empty( $settings ) ) {
		$message = '<div class="error"><p>' .  __('Importing of settings failed.', 'tinymce-advanced') . '</p></div>';
	} else {
		// only admin || SA
		$this->admin_settings = $admin_settings;
		update_option( 'tadv_admin_settings', $admin_settings );

		// User options
		// TODO: allow editors, authors and contributors some access
		$this->settings = $settings;
		$this->load_settings();

		// Merge the submitted plugins and buttons
		if ( ! empty( $settings['plugins'] ) ) {
			$settings['plugins'] = implode( ',', $this->get_plugins( explode( ',', $settings['plugins'] ) ) );
		}

		$this->plugins = $settings['plugins'];

		// Save the new settings
		update_option( 'tadv_settings', $settings );
	}
}

$this->load_settings();

if ( empty( $this->toolbar_1 ) && empty( $this->toolbar_2 ) && empty( $this->toolbar_3 ) && empty( $this->toolbar_4 ) ) {
	$message = '<div class="error"><p>' . __( 'ERROR: All toolbars are empty. Default settings loaded.', 'tinymce-advanced' ) . '</p></div>';

	$this->admin_settings = $this->default_admin_settings;
	$this->settings = $this->default_settings;
	$this->load_settings();
}

$used_buttons = array_merge( $this->toolbar_1, $this->toolbar_2, $this->toolbar_3, $this->toolbar_4 );
$all_buttons = $this->get_all_buttons();

?>
<div class="wrap" id="contain">
<h2><?php _e( 'Editor Settings', 'tinymce-advanced' ); ?></h2>
<?php

// TODO admin || SA
$this->warn_if_unsupported();

if ( isset( $_POST['tadv-save'] ) && empty( $message ) ) {
	?><div class="updated"><p><?php _e( 'Settings saved.', 'tinymce-advanced' ); ?></p></div><?php
} else {
	echo $message;
}

?>
<form id="tadvadmin" method="post" action="">

<p class="tadv-submit">
	<input class="button-primary button-large" type="submit" name="tadv-save" value="<?php _e( 'Save Changes', 'tinymce-advanced' ); ?>" />
</p>

<div id="tadvzones">

<p><label>
<input type="checkbox" name="menubar" id="menubar" <?php if ( $this->check_setting( 'menubar' ) ) { echo ' checked="checked"'; } ?>>
<?php _e( 'Enable the editor menu.', 'tinymce-advanced' ); ?>
</label></p>

<div id="tadv-mce-menu" class="mce-container mce-menubar mce-toolbar mce-first mce-stack-layout-item
	<?php if ( $this->check_setting( 'menubar' ) ) { echo ' enabled'; } ?>">
	<div class="mce-container-body mce-flow-layout">
		<div class="mce-widget mce-btn mce-menubtn mce-first mce-flow-layout-item">
			<button type="button">
				<span class="tadv-translate">File</span>
				<i class="mce-caret"></i>
			</button>
		</div>
		<div class="mce-widget mce-btn mce-menubtn mce-flow-layout-item">
			<button type="button">
				<span class="tadv-translate">Edit</span>
				<i class="mce-caret"></i>
			</button>
		</div>
		<div class="mce-widget mce-btn mce-menubtn mce-flow-layout-item">
			<button type="button">
				<span class="tadv-translate">Insert</span>
				<i class="mce-caret"></i>
			</button>
		</div>
		<div class="mce-widget mce-btn mce-menubtn mce-flow-layout-item mce-toolbar-item">
			<button type="button">
				<span class="tadv-translate">View</span>
				<i class="mce-caret"></i>
			</button>
		</div>
		<div class="mce-widget mce-btn mce-menubtn mce-flow-layout-item">
			<button type="button">
				<span class="tadv-translate">Format</span>
				<i class="mce-caret"></i>
			</button>
		</div>
		<div class="mce-widget mce-btn mce-menubtn mce-flow-layout-item">
			<button type="button">
				<span class="tadv-translate">Table</span>
				<i class="mce-caret"></i>
			</button>
		</div>
		<div class="mce-widget mce-btn mce-menubtn mce-last mce-flow-layout-item">
			<button type="button">
				<span class="tadv-translate">Tools</span>
				<i class="mce-caret"></i>
			</button>
		</div>
	</div>
</div>

<?php

$mce_text_buttons = array( 'styleselect', 'formatselect', 'fontselect', 'fontsizeselect' );

for ( $i = 1; $i < 5; $i++ ) {
	$toolbar = "toolbar_$i";

	?>
	<div class="tadvdropzone mce-toolbar">
	<ul id="tb<?php echo $i; ?>" class="container">
	<?php

	foreach( $this->$toolbar as $button ) {
		if ( strpos( $button, 'separator' ) !== false || in_array( $button, array( 'moveforward', 'movebackward', 'absolute' ) ) ) {
			continue;
		}

		if ( isset( $all_buttons[$button] ) ) {
			$name = $all_buttons[$button];
			unset( $all_buttons[$button] );
		} else {
			// error?..
			continue;
		}

		?><li class="tadvmodule" id="<?php echo $button; ?>">
			<?php

			if ( in_array( $button, $mce_text_buttons, true ) ) {
				?>
				<div class="tadvitem mce-widget mce-btn mce-menubtn mce-fixed-width mce-listbox">
					<div class="the-button">
						<span class="descr"><?php echo $name; ?></span>
						<i class="mce-caret"></i>
						<input type="hidden" class="tadv-button" name="tb<?php echo $i; ?>[]" value="<?php echo $button; ?>" />
					</div>
				</div>
				<?php
			} else {
				?>
				<div class="tadvitem">
					<i class="mce-ico mce-i-<?php echo $button; ?>" title="<?php echo $name; ?>"></i>
					<span class="descr"><?php echo $name; ?></span>
					<input type="hidden" class="tadv-button" name="tb<?php echo $i; ?>[]" value="<?php echo $button; ?>" />
				</div>
				<?php
			}

			?>
		</li><?php

	}

	?>
	</ul></div>
	<?php
}

?>
</div>

<p><?php _e( 'Drag buttons from the unused buttons below and drop them in the toolbars above, or drag the buttons in the toolbars to rearrange them.', 'tinymce-advanced' ); ?></p>

<div id="unuseddiv">
<h3><?php _e( 'Unused Buttons', 'tinymce-advanced' ); ?></h3>
<ul id="unused" class="container">
<?php

foreach( $all_buttons as $button => $name ) {
	if ( strpos( $button, 'separator' ) !== false ) {
		continue;
	}

	?><li class="tadvmodule" id="<?php echo $button; ?>">
		<?php

		if ( in_array( $button, $mce_text_buttons, true ) ) {
			?>
			<div class="tadvitem mce-widget mce-btn mce-menubtn mce-fixed-width mce-listbox">
				<div class="the-button">
					<span class="descr"><?php echo $name; ?></span>
					<i class="mce-caret"></i>
					<input type="hidden" class="tadv-button" name="tb<?php echo $i; ?>[]" value="<?php echo $button; ?>" />
				</div>
			</div>
			<?php
		} else {
			?>
			<div class="tadvitem">
				<i class="mce-ico mce-i-<?php echo $button; ?>" title="<?php echo $name; ?>"></i>
				<span class="descr"><?php echo $name; ?></span>
				<input type="hidden" class="tadv-button" name="tb<?php echo $i; ?>[]" value="<?php echo $button; ?>" />
			</div>
			<?php
		}

		?>
	</li><?php

}

?>
</ul>
</div>

<div class="advanced-options">
	<h3><?php _e( 'Options', 'tinymce-advanced' ); ?></h3>
	<div>
		<label><input type="checkbox" name="advlist" id="advlist" <?php if ( $this->check_setting('advlist') ) echo ' checked="checked"'; ?> />
		<?php _e( 'List Style Options', 'tinymce-advanced' ); ?></label>
		<p>
			<?php _e( 'Enable more list options: upper or lower case letters for ordered lists, disk or square for unordered lists, etc.', 'tinymce-advanced' ); ?>
		</p>
	</div>
	<div>
		<label><input type="checkbox" name="contextmenu" id="contextmenu" <?php if ( $this->check_setting('contextmenu') ) echo ' checked="checked"'; ?> />
		<?php _e( 'Context Menu', 'tinymce-advanced' ); ?></label>
		<p>
			<?php _e( 'Replace the browser context (right-click) menu.', 'tinymce-advanced' ); ?>
		</p>
	</div>
	<div>
		<label><input type="checkbox" name="advlink" id="advlink" <?php if ( $this->check_setting('advlink') ) echo ' checked="checked"'; ?> />
		<?php _e( 'Alternative link dialog', 'tinymce-advanced' ); ?></label>
		<p>
			<?php _e( 'Open the TinyMCE link dialog when using the link button on the toolbar or the link menu item.', 'tinymce-advanced' ); ?>
		</p>
	</div>
	<div>
		<label><input type="checkbox" name="fontsize_formats" id="fontsize_formats" <?php if ( $this->check_setting( 'fontsize_formats' ) ) echo ' checked="checked"'; ?> />
		<?php _e( 'Font sizes', 'tinymce-advanced' ); ?></label>
		<p><?php _e( 'Replace the size setting available for fonts with: 8px 10px 12px 14px 16px 20px 24px 28px 32px 36px 48px 60px.', 'tinymce-advanced' ); ?></p>
	</div>
</div>
<?php

if ( ! is_multisite() || current_user_can( 'manage_sites' ) ) {
	?>
	<div class="advanced-options">
	<h3><?php _e( 'Advanced Options', 'tinymce-advanced' ); ?></h3>
	<?php

	$has_editor_style = $this->has_editor_style();
	$disabled = ' disabled';

	if ( $has_editor_style === 'not-supporetd' || $has_editor_style === 'not-present' ) {
		add_editor_style();
	}

	if ( $this->has_editor_style() === 'present' ) {
		$disabled = '';
		$has_editor_style = 'present';
	}

	?>
	<div>
		<label><input type="checkbox" name="importcss" id="importcss" <?php if ( ! $disabled && $this->check_admin_setting( 'importcss' ) ) echo ' checked="checked"'; echo $disabled; ?> />
		<?php _e( 'Create CSS classes menu', 'tinymce-advanced' ); ?></label>
		<p>
		<?php

		_e( 'Load the CSS classes used in editor-style.css and replace the Formats menu.', 'tinymce-advanced' );

		if ( $has_editor_style === 'not-supporetd' ) {
			?>
				<br>
				<span class="tadv-error"><?php _e( 'ERROR:', 'tinymce-advanced' ); ?></span>
				<?php _e( 'Your theme does not support editor-style.css.', 'tinymce-advanced' ); ?>
			<?php
		} elseif ( $disabled ) {
			?>
				<br>
				<span class="tadv-error"><?php _e( 'ERROR:', 'tinymce-advanced' ); ?></span>
				<?php _e( 'A stylesheet file named editor-style.css was not added by your theme.', 'tinymce-advanced' ); ?>
			<?php
		}

		if ( $has_editor_style === 'not-supporetd' || $disabled ) {
			_e( 'To use this option, add editor-style.css to your theme or a child theme. Enabling this option will also load that stylesheet in the editor.', 'tinymce-advanced' );
		}

		?>
		</p>
	</div>
	<div>
		<label><input type="checkbox" name="no_autop" id="no_autop" <?php if ( $this->check_admin_setting( 'no_autop' ) ) echo ' checked="checked"'; ?> />
		<?php _e( 'Keep paragraph tags', 'tinymce-advanced' ); ?></label>
		<p>
			<?php _e( 'Stop removing the &lt;p&gt; and &lt;br /&gt; tags when saving and show them in the Text editor.', 'tinymce-advanced' ); ?>
			<?php _e( 'This will make it possible to use more advanced coding in the Text editor without the back-end filtering affecting it much.', 'tinymce-advanced' ); ?>
			<?php _e( 'However it may behave unexpectedly in rare cases, so test it thoroughly before enabling it permanently.', 'tinymce-advanced' ); ?>
			<?php _e( 'Line breaks in the Text editor would still affect the output, in particular do not use empty lines, line breaks inside HTML tags or multiple &lt;br /&gt; tags.', 'tinymce-advanced' ); ?>
		</p>
	</div>
	<div>
		<label><input type="checkbox" name="paste_images" id="paste_images" <?php if ( $this->check_admin_setting( 'paste_images' ) ) echo ' checked="checked"'; ?> />
		<?php _e( 'Enable pasting of image source', 'tinymce-advanced' ); ?></label>
		<p>
			<?php _e( 'Works only in Firefox and Safari. These browsers support pasting of images directly in the editor and convert them to base64 encoded text.', 'tinymce-advanced' ); ?>
			<?php _e( 'This is not acceptable for larger images like photos or graphics, but may be useful in some cases for very small images like icons, not larger than 2-3KB.', 'tinymce-advanced' ); ?>
			<?php _e( 'These images will not be available in the Media Library.', 'tinymce-advanced' ); ?>
		</p>
	</div>
	</div>

	<div class="advanced-options">
	<h3><?php _e( 'Administration', 'tinymce-advanced' ); ?></h3>
	<div>
		<h4><?php _e( 'Settings import and export', 'tinymce-advanced' ); ?></h4>
		<p>
			<input type="submit" class="button" name="tadv-export-settings" value="<?php _e( 'Export Settings', 'tinymce-advanced' ); ?>" /> &nbsp;
			<input type="submit" class="button" name="tadv-import-settings" value="<?php _e( 'Import Settings', 'tinymce-advanced' ); ?>" />
		</p>
	</div>
	<div>
		<h4><?php _e( 'Enable the editor enhancements for:', 'tinymce-advanced' ); ?></h4>
		<p>
			<label><input type="checkbox" name="tadv_enable_at[edit_post_screen]" <?php if ( $this->check_admin_setting( 'enable_edit_post_screen' ) ) echo ' checked="checked"'; ?> />
			<?php _e( 'The main editor (Add New and Edit posts and pages)', 'tinymce-advanced' ); ?></label>
		</p>
		<p>
			<label><input type="checkbox" name="tadv_enable_at[rest_of_wpadmin]" <?php if ( $this->check_admin_setting( 'enable_rest_of_wpadmin' ) ) echo ' checked="checked"'; ?> />
			<?php _e( 'Other editors in wp-admin', 'tinymce-advanced' ); ?></label>
		</p>
		<p>
			<label><input type="checkbox" name="tadv_enable_at[on_front_end]" <?php if ( $this->check_admin_setting( 'enable_on_front_end' ) ) echo ' checked="checked"'; ?> />
			<?php _e( 'Editors on the front end of the site', 'tinymce-advanced' ); ?></label>
		</p>
	</div>
	</div>
	<?php

}
?>

<p class="tadv-submit">
	<?php wp_nonce_field( 'tadv-save-buttons-order' ); ?>
	<input class="button" type="submit" name="tadv-restore-defaults" value="<?php _e( 'Restore Default Settings', 'tinymce-advanced' ); ?>" />
	<input class="button-primary button-large" type="submit" name="tadv-save" value="<?php _e( 'Save Changes', 'tinymce-advanced' ); ?>" />
</p>
</form>

<div id="wp-adv-error-message" class="tadv-error">
<?php _e( 'The [Toolbar toggle] button shows or hides the second, third, and forth button rows. It will only work when it is in the first row and there are buttons in the second row.', 'tinymce-advanced' ); ?>
</div>
</div><!-- /wrap -->