<?php
/* Begin Add Assets */
add_action( 'wp_insert_modules_js', 'wp_insert_module_inpostads_js', 0 );
function wp_insert_module_inpostads_js() {
	wp_register_script( 'wp-insert-module-inpostads-js', WP_INSERT_URL . 'includes/modules/general/inpost/js/module.js', [ 'wp-insert-js' ], WP_INSERT_VERSION . ( ( WP_INSERT_DEBUG ) ? wp_rand( 0, 9999 ) : '' ), true );
	wp_enqueue_script( 'wp-insert-module-inpostads-js' );
}
/* End Add Assets */

/* Begin UI Functions */
add_action( 'wp_insert_plugin_card', 'wp_insert_inpostads_plugin_card', 20 );
function wp_insert_inpostads_plugin_card() {
	wp_insert_get_plugin_card(
		'In-Post Ads',
		'<p>Ads shown within the post content.<br />You can choose different locations to insert ads from Above /  Below / Inside / Middle Of / To the Left / To the Right of post content</p>',
		'inpostads',
		'In-Post Ad'
	);
}

add_action( 'wp_ajax_wp_insert_inpostads_get_ad_form', 'wp_insert_inpostads_get_ad_form' );
function wp_insert_inpostads_get_ad_form() {
	wp_insert_get_ad_form( 'wp_insert_inpostads_primary_ad_code_type_change("###IDENTIFIER###"); wp_insert_inpostads_primary_ad_code_location_change_action("###IDENTIFIER###"); wp_insert_inpostads_vi_customize_adcode();' );
}
add_action( 'wp_ajax_wp_insert_inpostads_save_ad_data', 'wp_insert_save_ad_data' );
add_action( 'wp_ajax_wp_insert_inpostads_delete_ad_data', 'wp_insert_delete_ad_data' );

add_filter( 'wp_insert_inpostads_form_accordion_tabs', 'wp_insert_inpostads_form_accordion_tabs_location', 10, 3 );
function wp_insert_inpostads_form_accordion_tabs_location( $control, $identifier, $location ) {
	echo '<h3>Location</h3>';
	echo '<div>';
		$paragraphPositioningOptions = [
			[
				'text'  => '1st',
				'value' => '1',
			],
			[
				'text'  => '2nd',
				'value' => '2',
			],
			[
				'text'  => '3rd',
				'value' => '3',
			],
			[
				'text'  => '4th',
				'value' => '4',
			],
			[
				'text'  => '5th',
				'value' => '5',
			],
			[
				'text'  => '6th',
				'value' => '6',
			],
			[
				'text'  => '7th',
				'value' => '7',
			],
			[
				'text'  => '8th',
				'value' => '8',
			],
			[
				'text'  => '9th',
				'value' => '9',
			],
			[
				'text'  => '10th',
				'value' => '10',
			],
		];
		$control->add_control(
			[
				'type'         => 'select',
				'className'    => 'input',
				'style'        => 'display: inline;',
				'useParagraph' => false,
				'optionName'   => 'paragraphtopposition',
				'options'      => $paragraphPositioningOptions,
			]
		);
		$nthParagraphTopControl = $control->HTML;
		$control->clear_controls();
		$control->add_control(
			[
				'type'         => 'select',
				'className'    => 'input',
				'style'        => 'display: inline;',
				'useParagraph' => false,
				'optionName'   => 'paragraphbottomposition',
				'options'      => $paragraphPositioningOptions,
			]
		);
		$nthParagraphBottomControl = $control->HTML;
		$control->clear_controls();

		$location = '';
	if ( ! isset( $control->values['location'] ) ) {
		switch ( $identifier ) {
			case 'above':
				$location = 'above';
				break;
			case 'middle':
				$location = 'middle';
				break;
			case 'below':
				$location = 'below';
				break;
			case 'left':
				$location = 'left';
				break;
			case 'right':
				$location = 'right';
				break;
			default:
				$location = 'above';
				break;
		}
	} else {
		$location = $control->values['location'];
	}
		$locations = [
			[
				'text'  => 'Above Post Content',
				'value' => 'above',
			],
			[
				'text'  => 'Middle of Post Content',
				'value' => 'middle',
			],
			[
				'text'  => 'Below Post Content',
				'value' => 'below',
			],
			[
				'text'  => 'To the Left of Post Content',
				'value' => 'left',
			],
			[
				'text'  => 'To the Right of Post Content',
				'value' => 'right',
			],
			[
				'text'  => 'After ' . $nthParagraphTopControl . ' Paragraph in Post Content (From the Top)',
				'value' => 'paragraphtop',
			],
			[
				'text'  => 'After ' . $nthParagraphBottomControl . ' Paragraph in Post Content (From the Bottom)',
				'value' => 'paragraphbottom',
			],
		];
		$control->add_control(
			[
				'type'       => 'radio-group',
				'style'      => 'line-height: 40px; margin-top: 3px;',
				'optionName' => 'location',
				'options'    => $locations,
				'value'      => $location,
			]
		);
		$control->create_section( 'Location' );
		wp_insert_echo_html( $control->HTML );
		$control->clear_controls();
		echo '</div>';
		return $control;
}
add_filter( 'wp_insert_inpostads_form_accordion_tabs', 'wp_insert_form_accordion_tabs_adcode', 20, 3 );
add_filter( 'wp_insert_inpostads_form_accordion_tabs', 'wp_insert_form_accordion_tabs_rules', 30, 3 );
add_filter( 'wp_insert_inpostads_form_accordion_tabs', 'wp_insert_form_accordion_tabs_geo_targeting', 40, 3 );
add_filter( 'wp_insert_inpostads_form_accordion_tabs', 'wp_insert_form_accordion_tabs_devices_styles', 50, 3 );
add_filter( 'wp_insert_inpostads_form_accordion_tabs', 'wp_insert_form_accordion_tabs_notes', 60, 3 );
add_filter( 'wp_insert_inpostads_form_accordion_tabs', 'wp_insert_inpostads_form_accordion_tabs_manual_override', 70, 3 );
add_filter( 'wp_insert_inpostads_form_accordion_tabs', 'wp_insert_inpostads_form_accordion_tabs_positioning', 80, 3 );

function wp_insert_inpostads_form_accordion_tabs_manual_override( $control, $identifier, $location ) {
	echo '<h3 class="wp_insert_inpostads_location_manual_override_panel">Manual Override</h3>';
	echo '<div>';
		$control->set_HTML( '<p class="codeSnippet"><code>[wpinsertinpostad id="' . $identifier . '"]</code></p><p>For those extreme cases when auto positioning just doesnt work out the way you want, use the shortcode above to precisely position your ad unit inside your post content.<br>Gutenberg users can utilize "Wp-Insert" blocks for manual positioning within post content.</p>' );
		$control->create_section( 'Code to add to your post/page content' );
		wp_insert_echo_html( $control->HTML );
		$control->clear_controls();
	echo '</div>';
	return $control;
}

function wp_insert_inpostads_form_accordion_tabs_positioning( $control, $identifier, $location ) {
	echo '<h3 class="wp_insert_inpostads_location_middle_panel">Positioning</h3>';
	echo '<div>';
		$control->add_control(
			[
				'type'       => 'text',
				'label'      => 'Minimum Character Count',
				'optionName' => 'minimum_character_count',
				'helpText'   => 'Show the ad only if the Content meets the minimum character count. If this parameter is set to 0 (or empty) minimum character count check will be deactivated.',
			]
		);
		$control->add_control(
			[
				'type'       => 'text',
				'label'      => 'Paragraph Buffer Count',
				'optionName' => 'paragraph_buffer_count',
				'helpText'   => 'Shows the ad after X number of Paragraphs. If this parameter is set to 0 (or empty) the ad will appear in the middle of the content.',
			]
		);
		$control->create_section( 'Positioning' );
		wp_insert_echo_html( $control->HTML );
		$control->clear_controls();
	echo '</div>';
	return $control;
}
/* End UI Functions */

/* Begin In-Post Ads Ad Insertion */
add_filter( 'the_content', 'wp_insert_inpostads_the_content', 100 );
function wp_insert_inpostads_the_content( $content ) {
	global $post;
	if ( ! is_feed() && is_main_query() ) {
		$inpostads = get_option( 'wp_insert_inpostads' );
		if ( isset( $inpostads ) && is_array( $inpostads ) ) {
			$shortcodeInsertions = [];
			if ( preg_match_all( '/' . get_shortcode_regex() . '/s', $post->post_content, $matches ) && array_key_exists( 2, $matches ) && in_array( 'wpinsertinpostad', $matches[2] ) ) {
				foreach ( $matches[2] as $key => $value ) {
					if ( 'wpinsertinpostad' === $value ) {
						$shortcodeAtts = shortcode_parse_atts( $matches[3][ $key ] );
						if ( isset( $shortcodeAtts ) && isset( $shortcodeAtts['id'] ) && ( $shortcodeAtts['id'] != '' ) ) {
							$shortcodeInsertions[] = $shortcodeAtts['id'];
						}
					}
				}
			}

			$paragraphCount = wp_insert_inpostads_get_paragraph_count( $content );
			foreach ( $inpostads as $key => $inpostad ) {
				if ( ! in_array( $key, $shortcodeInsertions ) ) {
					if ( ! isset( $inpostad['location'] ) ) { //Get the location value from the key for old users who doesnt have a location saved.
						switch ( $key ) {
							case 'above':
								$inpostad['location'] = 'above';
								break;
							case 'middle':
								$inpostad['location'] = 'middle';
								break;
							case 'below':
								$inpostad['location'] = 'below';
								break;
							case 'left':
								$inpostad['location'] = 'left';
								break;
							case 'right':
								$inpostad['location'] = 'right';
								break;
							default:
								$inpostad['location'] = 'above';
								break;
						}
					}

					if ( wp_insert_get_ad_status( $inpostad ) ) {
						switch ( $inpostad['location'] ) {
							case 'above':
								$content = wp_insert_get_ad_unit( $inpostad ) . $content;
								break;
							case 'middle':
								if ( $paragraphCount > 1 ) {
									$paragraphBufferCount  = $inpostad['paragraph_buffer_count'] ?? '';
									$minimumCharacterCount = $inpostad['minimum_character_count'] ?? '';
									if ( ( $paragraphBufferCount == 0 ) || ( $paragraphBufferCount == '' ) ) {
										$position = wp_insert_inpostads_get_insertion_position( '/p>', $content, round( $paragraphCount / 2 ) );
									} else {
										$position = wp_insert_inpostads_get_insertion_position( '/p>', $content, $paragraphBufferCount );
									}
									if ( $position ) {
										if ( ( $minimumCharacterCount == 0 ) || ( $minimumCharacterCount == '' ) ) {
											$content = substr_replace( $content, '/p>' . wp_insert_get_ad_unit( $inpostad ), $position, 3 );
										} elseif ( strlen( wp_strip_all_tags( $content ) ) > $minimumCharacterCount ) {
												$content = substr_replace( $content, '/p>' . wp_insert_get_ad_unit( $inpostad ), $position, 3 );
										}
									}
								}
								break;
							case 'below':
								$content = $content . wp_insert_get_ad_unit( $inpostad );
								break;
							case 'left':
								$content = wp_insert_get_ad_unit( $inpostad, 'float: left;' ) . $content;
								break;
							case 'right':
								$content = wp_insert_get_ad_unit( $inpostad, 'float: right;' ) . $content;
								break;
							case 'paragraphtop':
								if ( $paragraphCount > 1 ) {
									$position = wp_insert_inpostads_get_insertion_position( '/p>', $content, ( $inpostad['paragraphtopposition'] ?? 0 ) );
									if ( $position ) {
										$content = substr_replace( $content, '/p>' . wp_insert_get_ad_unit( $inpostad ), $position, 3 );
									}
								}
								break;
							case 'paragraphbottom':
								if ( $paragraphCount > 1 ) {
									$paragraphbottomposition = ( $paragraphCount - (int) ( $inpostad['paragraphbottomposition'] ?? 0 ) );
									if ( ( $paragraphbottomposition > 0 ) && ( $paragraphbottomposition < $paragraphCount ) ) {
										$position = wp_insert_inpostads_get_insertion_position( '/p>', $content, $paragraphbottomposition );
										if ( $position ) {
											$content = substr_replace( $content, '/p>' . wp_insert_get_ad_unit( $inpostad ), $position, 3 );
										}
									}
								}
								break;
						}
					}
				}
			}
		}
	}
	return $content;
}

function wp_insert_inpostads_get_paragraph_count( $content ) {
	$paragraphs     = explode( '/p>', $content );
	$paragraphCount = 0;
	if ( is_array( $paragraphs ) ) {
		foreach ( $paragraphs as $paragraph ) {
			if ( strlen( $paragraph ) > 1 ) {
				++$paragraphCount;
			}
		}
	}
	return $paragraphCount;
}

/**
 * Byte offset of the $offset-th occurrence of $search within $content.
 *
 * @param string $search  Delimiter to count (e.g. '/p>').
 * @param string $content Content to scan.
 * @param int    $offset  1-based occurrence to locate.
 * @return int|false Offset, or false when out of range.
 */
function wp_insert_inpostads_get_insertion_position( $search, $content, $offset ) {
	$offset   = (int) $offset;
	$segments = explode( $search, $content );
	if ( ( $offset <= 0 ) || ( $offset > max( array_keys( $segments ) ) ) ) {
		return false;
	}
	return strlen( implode( $search, array_slice( $segments, 0, $offset ) ) );
}
/* End In-Post Ads Ad Insertion */

/* Begin In-Post Ads Shortcode Ad Insertion */
add_shortcode( 'wpinsertinpostad', 'wp_insert_inpostads_get_shortcode' );
function wp_insert_inpostads_get_shortcode( $atts ) {
	$atts = shortcode_atts( [ 'id' => '' ], $atts, 'wpinsertinpostad' );
	if ( isset( $atts['id'] ) && ( $atts['id'] != '' ) ) {
		$adunit = get_option( 'wp_insert_inpostads' );
		if ( isset( $adunit ) && isset( $adunit[ $atts['id'] ] ) && is_array( $adunit[ $atts['id'] ] ) && wp_insert_get_ad_status( $adunit[ $atts['id'] ] ) ) {
			return wp_insert_get_ad_unit( $adunit[ $atts['id'] ] );
		}
	}
}
/* End In-Post Ads Shortcode Ad Insertion */