<?php
/**
 * Contact forms → Wapadesk leads (owner request, 15 October 2026).
 *
 * After a form plugin has accepted a submission (Divi's Contact Form module, Gravity Forms,
 * Contact Form 7, WPForms, Elementor Pro), the fields of the forms the clinic switched on are sent server to server to
 * Wapadesk with the clinic's connection key. The form, its own emails and its own storage keep
 * working exactly as before: nothing here can stop or delay a submission. Sending happens at the
 * end of the request; if Wapadesk cannot be reached, the submission waits in a small queue and
 * is retried for up to a day.
 *
 * @package Wapadesk
 */

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

define( 'WAPADESK_QUEUE_OPTION', 'wapadesk_queue' );
define( 'WAPADESK_STATUS_OPTION', 'wapadesk_status' );
define( 'WAPADESK_QUEUE_MAX', 200 );
define( 'WAPADESK_KEY_PATTERN', '/^wpd\.([A-Za-z0-9_-]{1,64})\.([a-f0-9]{48})$/' );

/**
 * Form plugins whose submissions can be sent with one "all forms" tick, with the check that
 * tells each one is active. Plugins listed form by form (Gravity Forms, Contact Form 7, WPForms)
 * are handled in wapadesk_detect_forms().
 */
function wapadesk_all_forms_plugins() {
	return array(
		'divi'           => array( 'Divi', defined( 'ET_BUILDER_VERSION' ) || function_exists( 'et_setup_theme' ) ),
		'elementor'      => array( 'Elementor Pro', defined( 'ELEMENTOR_PRO_VERSION' ) ),
		'ninjaforms'     => array( 'Ninja Forms', function_exists( 'Ninja_Forms' ) ),
		'formidable'     => array( 'Formidable Forms', class_exists( 'FrmAppHelper' ) ),
		'fluentforms'    => array( 'Fluent Forms', defined( 'FLUENTFORM' ) ),
		'forminator'     => array( 'Forminator', class_exists( 'Forminator' ) ),
		'everest'        => array( 'Everest Forms', function_exists( 'evf' ) ),
		'jetpack'        => array( 'Jetpack Forms', class_exists( 'Automattic\\Jetpack\\Forms\\ContactForm\\Contact_Form' ) ),
		'kadence'        => array( 'Kadence Blocks', defined( 'KADENCE_BLOCKS_VERSION' ) ),
		'spectra'        => array( 'Spectra', defined( 'UAGB_VER' ) ),
		'beaver'         => array( 'Beaver Builder', class_exists( 'FLBuilder' ) ),
		'wsform'         => array( 'WS Form', defined( 'WS_FORM_VERSION' ) ),
		'metform'        => array( 'MetForm', defined( 'METFORM_VERSION' ) ),
		'jetformbuilder' => array( 'JetFormBuilder', function_exists( 'jet_fb_context' ) ),
		'happyforms'     => array( 'HappyForms', defined( 'HAPPYFORMS_VERSION' ) ),
		'weforms'        => array( 'weForms', defined( 'WEFORMS_VERSION' ) ),
		'otter'          => array( 'Otter Blocks', defined( 'OTTER_BLOCKS_BASEFILE' ) ),
		'sureforms'      => array( 'SureForms', defined( 'SRFM_FILE' ) ),
	);
}

/** Submissions captured during this request, sent on shutdown. */
$GLOBALS['wapadesk_outbox'] = array();

function wapadesk_api_origin() {
	$s = wapadesk_get_settings();
	return '' !== $s['api_url'] ? untrailingslashit( $s['api_url'] ) : 'https://api.wapadesk.com';
}

function wapadesk_connection_key() {
	$s = wapadesk_get_settings();
	return isset( $s['connection_key'] ) && preg_match( WAPADESK_KEY_PATTERN, $s['connection_key'] ) ? $s['connection_key'] : '';
}

function wapadesk_form_enabled( $plugin, $form_id ) {
	if ( '' === wapadesk_connection_key() ) {
		return false;
	}
	$s       = wapadesk_get_settings();
	$enabled = isset( $s['forms'] ) && is_array( $s['forms'] ) ? $s['forms'] : array();
	return in_array( $plugin . ':' . $form_id, $enabled, true ) || in_array( $plugin . ':*', $enabled, true );
}

/** "your-name" → "Your name" for Contact Form 7, which has no field labels. */
function wapadesk_humanise( $name ) {
	$words = trim( preg_replace( '/[-_]+/', ' ', preg_replace( '/^your[-_]/', 'your ', (string) $name ) ) );
	return '' === $words ? (string) $name : ucfirst( $words );
}

/** Strings and lists only, trimmed and capped, as the API expects. */
function wapadesk_clean_value( $value ) {
	if ( is_array( $value ) ) {
		$out = array();
		foreach ( $value as $v ) {
			if ( is_scalar( $v ) && '' !== trim( (string) $v ) ) {
				$out[] = substr( sanitize_textarea_field( (string) $v ), 0, 500 );
			}
		}
		return array_slice( $out, 0, 50 );
	}
	if ( is_bool( $value ) ) {
		return $value;
	}
	return is_scalar( $value ) ? substr( sanitize_textarea_field( (string) $value ), 0, 5000 ) : '';
}

/**
 * Each form plugin names its field types differently; the API understands a common set.
 * Email, phone and consent variants are folded into 'email', 'phone' and 'consent'.
 */
function wapadesk_normalise_type( $type ) {
	$t = strtolower( (string) $type );
	if ( false !== strpos( $t, 'email' ) ) {
		return 'email';
	}
	if ( preg_match( '/phone|^tel$|_tel$|mobile/', $t ) ) {
		return 'phone';
	}
	if ( in_array( $t, array( 'gdpr', 'gdpr_agreement', 'gdpr-checkbox', 'gdprcheckbox', 'terms', 'terms_and_condition', 'privacy-policy', 'accept', 'acceptance', 'mf-gdpr-consent', 'consent' ), true ) ) {
		return 'consent';
	}
	return $t;
}

function wapadesk_field( $id, $label, $type, $value ) {
	$type = wapadesk_normalise_type( $type );
	if ( 'consent' === $type && ! is_bool( $value ) ) {
		$value = is_array( $value ) ? ! empty( array_filter( $value ) ) : ( '' !== trim( (string) $value ) && '0' !== (string) $value && 'off' !== strtolower( (string) $value ) );
	}
	return array(
		'id'    => substr( (string) $id, 0, 64 ),
		'label' => substr( wp_strip_all_tags( (string) $label ), 0, 200 ),
		'type'  => substr( $type, 0, 40 ),
		'value' => wapadesk_clean_value( $value ),
	);
}

function wapadesk_capture( $plugin, $form_id, $title, $fields, $submission_id, $page_url = '' ) {
	$fields = array_values(
		array_filter(
			$fields,
			function ( $f ) {
				return '' !== $f['id'] && ( is_bool( $f['value'] ) || ! empty( $f['value'] ) );
			}
		)
	);
	if ( empty( $fields ) ) {
		return;
	}
	$payload = array(
		'site'          => home_url( '/' ),
		'plugin'        => $plugin,
		'form'          => array(
			'id'    => substr( (string) $form_id, 0, 64 ),
			'title' => substr( wp_strip_all_tags( (string) $title ), 0, 120 ),
		),
		'submissionId'  => substr( (string) $submission_id, 0, 128 ),
		'fields'        => array_slice( $fields, 0, 80 ),
		'pluginVersion' => WAPADESK_VERSION,
	);
	if ( is_string( $page_url ) && 0 === strpos( $page_url, 'http' ) ) {
		$payload['pageUrl'] = substr( esc_url_raw( $page_url ), 0, 2048 );
	}
	$GLOBALS['wapadesk_outbox'][] = $payload;
}

// ---------- Gravity Forms ----------

add_action( 'gform_after_submission', 'wapadesk_gravityforms', 20, 2 );
function wapadesk_gravityforms( $entry, $form ) {
	try {
		if ( ! is_array( $form ) || ! wapadesk_form_enabled( 'gravityforms', rgar( $form, 'id' ) ) ) {
			return;
		}
		$fields = array();
		foreach ( (array) rgar( $form, 'fields' ) as $field ) {
			if ( ! is_object( $field ) ) {
				continue;
			}
			$type  = method_exists( $field, 'get_input_type' ) ? $field->get_input_type() : $field->type;
			$value = method_exists( $field, 'get_value_export' ) ? $field->get_value_export( $entry, $field->id, true ) : rgar( $entry, (string) $field->id );
			if ( 'consent' === $type ) {
				// Ticked consent is stored at "<id>.1" as '1'; the export of the bare id is empty.
				$value = '1' === (string) rgar( $entry, $field->id . '.1' );
			}
			$fields[] = wapadesk_field( $field->id, $field->label, $type, $value );
		}
		// source_url can be admin-ajax or a REST URL for AJAX forms; then the referring page is better.
		$page = (string) rgar( $entry, 'source_url' );
		if ( '' === $page || false !== strpos( $page, 'admin-ajax.php' ) || false !== strpos( $page, '/wp-json/' ) ) {
			$page = (string) wp_get_referer();
		}
		wapadesk_capture( 'gravityforms', rgar( $form, 'id' ), rgar( $form, 'title' ), $fields, 'entry-' . rgar( $entry, 'id' ), $page );
	} catch ( Throwable $e ) {
		wapadesk_status_error( 'Gravity Forms: ' . $e->getMessage() );
	}
}

// ---------- Contact Form 7 ----------

add_action( 'wpcf7_mail_sent', 'wapadesk_cf7', 20, 1 );
function wapadesk_cf7( $contact_form ) {
	try {
		if ( ! is_object( $contact_form ) || ! class_exists( 'WPCF7_Submission' ) || ! wapadesk_form_enabled( 'cf7', $contact_form->id() ) ) {
			return;
		}
		$submission = WPCF7_Submission::get_instance();
		if ( ! $submission ) {
			return;
		}
		$posted = (array) $submission->get_posted_data();
		$fields = array();
		foreach ( $contact_form->scan_form_tags() as $tag ) {
			$base = isset( $tag->basetype ) ? $tag->basetype : '';
			$name = isset( $tag->name ) ? $tag->name : '';
			if ( '' === $name || in_array( $base, array( 'submit', 'quiz', 'captchac', 'captchar', 'file', 'hidden' ), true ) ) {
				continue;
			}
			$type     = 'acceptance' === $base ? 'consent' : ( 'tel' === $base ? 'phone' : $base );
			$value    = isset( $posted[ $name ] ) ? $posted[ $name ] : '';
			$value    = 'consent' === $type ? ! empty( $value ) : $value;
			$fields[] = wapadesk_field( $name, wapadesk_humanise( $name ), $type, $value );
		}
		wapadesk_capture( 'cf7', $contact_form->id(), $contact_form->title(), $fields, wp_generate_uuid4(), (string) $submission->get_meta( 'url' ) );
	} catch ( Throwable $e ) {
		wapadesk_status_error( 'Contact Form 7: ' . $e->getMessage() );
	}
}

// ---------- WPForms ----------

add_action( 'wpforms_process_complete', 'wapadesk_wpforms', 20, 4 );
function wapadesk_wpforms( $fields_in, $entry, $form_data, $entry_id ) {
	try {
		$form_id = isset( $form_data['id'] ) ? $form_data['id'] : '';
		if ( '' === $form_id || ! wapadesk_form_enabled( 'wpforms', $form_id ) ) {
			return;
		}
		$fields = array();
		foreach ( (array) $fields_in as $id => $f ) {
			$type  = isset( $f['type'] ) ? $f['type'] : 'text';
			$value = isset( $f['value'] ) ? $f['value'] : '';
			if ( 'gdpr-checkbox' === $type ) {
				$type  = 'consent';
				$value = '' !== (string) $value;
			}
			$fields[] = wapadesk_field( $id, isset( $f['name'] ) ? $f['name'] : '', $type, $value );
		}
		$title = isset( $form_data['settings']['form_title'] ) ? $form_data['settings']['form_title'] : '';
		wapadesk_capture( 'wpforms', $form_id, $title, $fields, $entry_id ? 'entry-' . $entry_id : wp_generate_uuid4(), (string) wp_get_referer() );
	} catch ( Throwable $e ) {
		wapadesk_status_error( 'WPForms: ' . $e->getMessage() );
	}
}

// ---------- Elementor Pro ----------

add_action( 'elementor_pro/forms/new_record', 'wapadesk_elementor', 20, 2 );
function wapadesk_elementor( $record, $handler ) {
	try {
		if ( ! is_object( $record ) || ! wapadesk_form_enabled( 'elementor', '*' ) ) {
			return;
		}
		$fields = array();
		foreach ( (array) $record->get( 'fields' ) as $id => $f ) {
			$type     = isset( $f['type'] ) ? $f['type'] : 'text';
			$value    = isset( $f['raw_value'] ) ? $f['raw_value'] : ( isset( $f['value'] ) ? $f['value'] : '' );
			$type     = 'acceptance' === $type ? 'consent' : ( 'tel' === $type ? 'phone' : $type );
			$value    = 'consent' === $type ? ! empty( $value ) && 'off' !== $value : $value;
			$fields[] = wapadesk_field( $id, isset( $f['title'] ) ? $f['title'] : $id, $type, $value );
		}
		$meta     = (array) $record->get( 'meta' );
		$page_url = isset( $meta['page_url']['value'] ) ? $meta['page_url']['value'] : (string) wp_get_referer();
		$name     = (string) $record->get_form_settings( 'form_name' );
		$form_id  = (string) $record->get_form_settings( 'id' );
		wapadesk_capture( 'elementor', '' !== $form_id ? $form_id : sanitize_title( $name ), $name, $fields, wp_generate_uuid4(), is_string( $page_url ) ? $page_url : '' );
	} catch ( Throwable $e ) {
		wapadesk_status_error( 'Elementor: ' . $e->getMessage() );
	}
}

// ---------- Divi contact form module ----------
// Divi's own action after its Contact Form module accepts a submission (Divi 4.13.1 and later):
// fields come keyed by field id with 'value' and 'label' only, so the type is inferred here.

add_action( 'et_pb_contact_form_submit', 'wapadesk_divi', 20, 3 );
function wapadesk_divi( $fields_in, $et_contact_error, $contact_form_info ) {
	try {
		if ( true === $et_contact_error || ! wapadesk_form_enabled( 'divi', '*' ) ) {
			return;
		}
		$fields = array();
		foreach ( (array) $fields_in as $id => $f ) {
			$value = is_array( $f ) && isset( $f['value'] ) ? $f['value'] : ( is_scalar( $f ) ? $f : '' );
			$label = is_array( $f ) && ! empty( $f['label'] ) ? $f['label'] : wapadesk_humanise( $id );
			$hint  = strtolower( $id . ' ' . $label );
			$type  = 'text';
			if ( is_string( $value ) && is_email( trim( $value ) ) ) {
				$type = 'email';
			} elseif ( preg_match( '/phone|mobile|tel\b|telephone|whatsapp/', $hint ) ) {
				$type = 'phone';
			} elseif ( preg_match( '/consent|privacy|gdpr|agree/', $hint ) ) {
				$type = 'checkbox';
			} elseif ( preg_match( '/message|comment|enquiry|inquiry/', $hint ) ) {
				$type = 'textarea';
			}
			$fields[] = wapadesk_field( $id, $label, $type, $value );
		}
		$info    = is_array( $contact_form_info ) ? $contact_form_info : array();
		$post_id = isset( $info['post_id'] ) ? (int) $info['post_id'] : (int) get_the_ID();
		$number  = isset( $info['contact_form_number'] ) ? (string) $info['contact_form_number'] : '';
		$page    = $post_id ? (string) get_permalink( $post_id ) : (string) wp_get_referer();
		$page_t  = $post_id ? trim( wp_strip_all_tags( get_the_title( $post_id ) ) ) : '';
		$title   = '' !== $page_t ? 'Form on ' . $page_t : 'Divi contact form';
		wapadesk_capture( 'divi', 'post-' . $post_id . ( '' !== $number ? '-' . $number : '' ), $title, $fields, wp_generate_uuid4(), $page );
	} catch ( Throwable $e ) {
		wapadesk_status_error( 'Divi: ' . $e->getMessage() );
	}
}

// ---------- Sending ----------

add_action( 'shutdown', 'wapadesk_flush_outbox', 99 );
function wapadesk_flush_outbox() {
	$outbox = isset( $GLOBALS['wapadesk_outbox'] ) ? $GLOBALS['wapadesk_outbox'] : array();
	if ( empty( $outbox ) ) {
		return;
	}
	$GLOBALS['wapadesk_outbox'] = array();
	// The visitor's response is complete before we talk to Wapadesk.
	if ( function_exists( 'fastcgi_finish_request' ) ) {
		fastcgi_finish_request();
	}
	foreach ( $outbox as $payload ) {
		if ( ! wapadesk_send( $payload, 5 ) ) {
			wapadesk_enqueue( $payload );
		}
	}
}

/**
 * Posts one submission. True when it is done with (sent, or refused for good);
 * false when it should be retried later.
 */
function wapadesk_send( $payload, $timeout ) {
	$key = wapadesk_connection_key();
	if ( '' === $key ) {
		return true;
	}
	$res = wp_remote_post(
		wapadesk_api_origin() . '/v1/inbound/form',
		array(
			'timeout' => $timeout,
			'headers' => array(
				'Authorization' => 'Bearer ' . $key,
				'Content-Type'  => 'application/json',
			),
			'body'    => wp_json_encode( $payload ),
		)
	);
	if ( is_wp_error( $res ) ) {
		wapadesk_status_error( 'Could not reach Wapadesk: ' . $res->get_error_message() );
		return false;
	}
	$code = (int) wp_remote_retrieve_response_code( $res );
	if ( $code >= 200 && $code < 300 ) {
		$status              = wapadesk_status();
		$status['last_sent'] = time();
		update_option( WAPADESK_STATUS_OPTION, $status, false );
		return true;
	}
	$body  = json_decode( (string) wp_remote_retrieve_body( $res ), true );
	$error = is_array( $body ) && isset( $body['error'] ) ? (string) $body['error'] : 'http_' . $code;
	wapadesk_status_error( 'Wapadesk answered ' . $code . ' (' . $error . ')' );
	// Busy, rate-limited or a server error: try again. Anything else will not get better.
	return ! ( 409 === $code || 429 === $code || $code >= 500 );
}

function wapadesk_enqueue( $payload ) {
	$queue = get_option( WAPADESK_QUEUE_OPTION, array() );
	$queue = is_array( $queue ) ? $queue : array();
	if ( count( $queue ) >= WAPADESK_QUEUE_MAX ) {
		array_shift( $queue );
		wapadesk_count_dropped();
	}
	$queue[] = array(
		'payload'  => $payload,
		'attempts' => 1,
		'first'    => time(),
		'next'     => time() + 5 * MINUTE_IN_SECONDS,
	);
	update_option( WAPADESK_QUEUE_OPTION, $queue, false );
	if ( ! wp_next_scheduled( 'wapadesk_retry' ) ) {
		wp_schedule_event( time() + 5 * MINUTE_IN_SECONDS, 'wapadesk_fifteen_minutes', 'wapadesk_retry' );
	}
}

add_filter( 'cron_schedules', 'wapadesk_cron_schedules' );
function wapadesk_cron_schedules( $schedules ) {
	$schedules['wapadesk_fifteen_minutes'] = array(
		'interval' => 15 * MINUTE_IN_SECONDS,
		'display'  => 'Every fifteen minutes (Wapadesk)',
	);
	return $schedules;
}

add_action( 'wapadesk_retry', 'wapadesk_retry_queue' );
function wapadesk_retry_queue() {
	$queue = get_option( WAPADESK_QUEUE_OPTION, array() );
	$queue = is_array( $queue ) ? $queue : array();
	$keep  = array();
	$now   = time();
	foreach ( $queue as $item ) {
		if ( ! is_array( $item ) || empty( $item['payload'] ) ) {
			continue;
		}
		if ( $item['next'] > $now ) {
			$keep[] = $item;
			continue;
		}
		if ( wapadesk_send( $item['payload'], 10 ) ) {
			continue;
		}
		// Give up after a day: the form plugin still has its own copy and email.
		if ( $now - (int) $item['first'] > DAY_IN_SECONDS ) {
			wapadesk_count_dropped();
			continue;
		}
		$item['attempts'] = (int) $item['attempts'] + 1;
		$item['next']     = $now + min( 6 * HOUR_IN_SECONDS, 5 * MINUTE_IN_SECONDS * ( 2 ** min( 6, $item['attempts'] - 1 ) ) );
		$keep[]           = $item;
	}
	update_option( WAPADESK_QUEUE_OPTION, $keep, false );
	if ( empty( $keep ) ) {
		wp_clear_scheduled_hook( 'wapadesk_retry' );
	}
}

function wapadesk_status() {
	$s = get_option( WAPADESK_STATUS_OPTION, array() );
	return is_array( $s ) ? $s : array();
}

function wapadesk_status_error( $message ) {
	$s               = wapadesk_status();
	$s['last_error'] = substr( sanitize_text_field( $message ), 0, 300 );
	$s['error_at']   = time();
	update_option( WAPADESK_STATUS_OPTION, $s, false );
}

function wapadesk_count_dropped() {
	$s            = wapadesk_status();
	$s['dropped'] = isset( $s['dropped'] ) ? (int) $s['dropped'] + 1 : 1;
	update_option( WAPADESK_STATUS_OPTION, $s, false );
}

// ---------- Which forms exist ----------

/**
 * The forms on this site, with whether each sends to Wapadesk and whether it has a consent box.
 * Titles only; never entries.
 *
 * @return array<int, array{plugin: string, id: string, title: string, enabled: bool, hasConsent?: bool}>
 */
function wapadesk_detect_forms() {
	$out = array();
	try {
		if ( class_exists( 'GFAPI' ) ) {
			foreach ( (array) GFAPI::get_forms() as $form ) {
				$consent = false;
				foreach ( (array) rgar( $form, 'fields' ) as $field ) {
					if ( is_object( $field ) && 'consent' === $field->type ) {
						$consent = true;
					}
				}
				$out[] = array(
					'plugin'     => 'gravityforms',
					'id'         => (string) rgar( $form, 'id' ),
					'title'      => (string) rgar( $form, 'title' ),
					'hasConsent' => $consent,
				);
			}
		}
		if ( class_exists( 'WPCF7_ContactForm' ) ) {
			foreach ( WPCF7_ContactForm::find() as $form ) {
				$out[] = array(
					'plugin'     => 'cf7',
					'id'         => (string) $form->id(),
					'title'      => (string) $form->title(),
					'hasConsent' => ! empty( $form->scan_form_tags( array( 'type' => array( 'acceptance' ) ) ) ),
				);
			}
		}
		$wpforms = null;
		if ( function_exists( 'wpforms' ) ) {
			$wpforms = method_exists( wpforms(), 'obj' ) ? wpforms()->obj( 'form' ) : ( isset( wpforms()->form ) ? wpforms()->form : null );
		}
		if ( is_object( $wpforms ) ) {
			$posts = $wpforms->get( '', array( 'posts_per_page' => 100 ) );
			foreach ( is_array( $posts ) ? $posts : array() as $post ) {
				if ( ! is_object( $post ) ) {
					continue;
				}
				$data    = function_exists( 'wpforms_decode' ) ? wpforms_decode( $post->post_content ) : array();
				$consent = false;
				foreach ( isset( $data['fields'] ) ? (array) $data['fields'] : array() as $f ) {
					if ( isset( $f['type'] ) && 'gdpr-checkbox' === $f['type'] ) {
						$consent = true;
					}
				}
				$out[] = array(
					'plugin'     => 'wpforms',
					'id'         => (string) $post->ID,
					'title'      => (string) $post->post_title,
					'hasConsent' => $consent,
				);
			}
		}
		foreach ( wapadesk_all_forms_plugins() as $plugin => $p ) {
			if ( $p[1] ) {
				$out[] = array(
					'plugin' => $plugin,
					'id'     => '*',
					'title'  => 'All ' . $p[0] . ' forms',
				);
			}
		}
	} catch ( Throwable $e ) {
		wapadesk_status_error( 'Listing forms: ' . $e->getMessage() );
	}
	foreach ( $out as $i => $f ) {
		$out[ $i ]['title']   = substr( wp_strip_all_tags( $f['title'] ), 0, 120 );
		$out[ $i ]['enabled'] = wapadesk_form_enabled( $f['plugin'], $f['id'] );
	}
	return array_slice( $out, 0, 100 );
}

/** Tells Wapadesk which forms exist and checks the key. Returns the API's answer or a WP_Error. */
function wapadesk_ping() {
	$key = wapadesk_connection_key();
	if ( '' === $key ) {
		return new WP_Error( 'no_key', __( 'Paste a connection key first.', 'ege-digital-chat-button' ) );
	}
	$res = wp_remote_post(
		wapadesk_api_origin() . '/v1/inbound/ping',
		array(
			'timeout' => 10,
			'headers' => array(
				'Authorization' => 'Bearer ' . $key,
				'Content-Type'  => 'application/json',
			),
			'body'    => wp_json_encode(
				array(
					'site'          => home_url( '/' ),
					'pluginVersion' => WAPADESK_VERSION,
					'forms'         => wapadesk_detect_forms(),
				)
			),
		)
	);
	if ( is_wp_error( $res ) ) {
		return $res;
	}
	$code = (int) wp_remote_retrieve_response_code( $res );
	$body = json_decode( (string) wp_remote_retrieve_body( $res ), true );
	if ( 200 !== $code || ! is_array( $body ) ) {
		$error = is_array( $body ) && isset( $body['error'] ) ? $body['error'] : 'http_' . $code;
		return new WP_Error( 'wapadesk_' . $error, 'invalid_key' === $error ? __( 'Wapadesk does not recognise this key. Create a new one on the Install page and paste it again.', 'ege-digital-chat-button' ) : sprintf( /* translators: %s: error code */ __( 'Wapadesk answered with an error (%s).', 'ege-digital-chat-button' ), $error ) );
	}
	return $body;
}

// Report the form list after the settings are saved.
add_action( 'update_option_' . WAPADESK_OPTION, 'wapadesk_after_save', 10, 0 );
add_action( 'add_option_' . WAPADESK_OPTION, 'wapadesk_after_save', 10, 0 );
function wapadesk_after_save() {
	if ( '' !== wapadesk_connection_key() ) {
		$r = wapadesk_ping();
		set_transient( 'wapadesk_ping_result', is_wp_error( $r ) ? array( 'error' => $r->get_error_message() ) : $r, 60 );
	}
}

add_action( 'admin_post_wapadesk_test', 'wapadesk_test_connection' );
function wapadesk_test_connection() {
	if ( ! current_user_can( 'manage_options' ) ) {
		wp_die( esc_html__( 'Not allowed.', 'ege-digital-chat-button' ) );
	}
	check_admin_referer( 'wapadesk_test' );
	$r = wapadesk_ping();
	set_transient( 'wapadesk_ping_result', is_wp_error( $r ) ? array( 'error' => $r->get_error_message() ) : $r, 60 );
	wp_safe_redirect( admin_url( 'admin.php?page=wapadesk-account' ) );
	exit;
}

/** The "Contact forms" part of the settings page. */
function wapadesk_forms_settings_section( $s ) {
	$key     = wapadesk_connection_key();
	$forms   = wapadesk_detect_forms();
	$status  = wapadesk_status();
	$queue   = get_option( WAPADESK_QUEUE_OPTION, array() );
	$waiting = is_array( $queue ) ? count( $queue ) : 0;
	$result  = get_transient( 'wapadesk_ping_result' );
	if ( $result ) {
		delete_transient( 'wapadesk_ping_result' );
	}
	?>
	<h2><?php esc_html_e( 'Contact forms', 'ege-digital-chat-button' ); ?></h2>
	<p>
		<?php esc_html_e( 'Submissions of the forms you tick are also sent to your Wapadesk dashboard as leads, with reminders and one-click WhatsApp. The forms, their emails and their own entries keep working as before.', 'ege-digital-chat-button' ); ?>
	</p>
	<?php if ( is_array( $result ) && isset( $result['error'] ) ) : ?>
		<div class="notice notice-error inline"><p><?php echo esc_html( $result['error'] ); ?></p></div>
	<?php elseif ( is_array( $result ) && ! empty( $result['ok'] ) ) : ?>
		<div class="notice <?php echo empty( $result['siteAllowed'] ) ? 'notice-warning' : 'notice-success'; ?> inline"><p>
			<?php
			echo esc_html(
				empty( $result['siteAllowed'] )
					/* translators: %s: business name */
					? sprintf( __( 'Connected to %s, but this website is not on its licence yet. Add it under Settings → Business in the dashboard; until then submissions are refused.', 'ege-digital-chat-button' ), $result['clinic'] )
					/* translators: %s: business name */
					: sprintf( __( 'Connected to %s. Submissions of the ticked forms will appear in Leads.', 'ege-digital-chat-button' ), $result['clinic'] )
			);
			?>
		</p></div>
	<?php endif; ?>
	<table class="form-table" role="presentation">
		<tr>
			<th scope="row"><label for="wapadesk_connection_key"><?php esc_html_e( 'Connection key', 'ege-digital-chat-button' ); ?></label></th>
			<td>
				<input name="<?php echo esc_attr( WAPADESK_OPTION ); ?>[connection_key]" id="wapadesk_connection_key" type="password" autocomplete="off" class="regular-text code" value="<?php echo esc_attr( isset( $s['connection_key'] ) ? $s['connection_key'] : '' ); ?>" placeholder="wpd.…" />
				<p class="description">
					<?php esc_html_e( 'Create it in the dashboard on the Install page. It also sets the Business ID, so the button keeps working.', 'ege-digital-chat-button' ); ?>
					<a href="https://app.wapadesk.com/install" target="_blank" rel="noopener"><?php esc_html_e( 'Open the Install page', 'ege-digital-chat-button' ); ?></a>
				</p>
			</td>
		</tr>
		<tr>
			<th scope="row"><?php esc_html_e( 'Forms to send', 'ege-digital-chat-button' ); ?></th>
			<td>
				<?php if ( empty( $forms ) ) : ?>
					<p class="description"><?php esc_html_e( 'No supported form plugin found on this site.', 'ege-digital-chat-button' ); ?></p>
				<?php else : ?>
					<fieldset>
						<legend class="screen-reader-text"><?php esc_html_e( 'Forms to send', 'ege-digital-chat-button' ); ?></legend>
						<?php
						$names = array(
							'gravityforms' => 'Gravity Forms',
							'cf7'          => 'Contact Form 7',
							'wpforms'      => 'WPForms',
						);
						foreach ( wapadesk_all_forms_plugins() as $plugin => $p ) {
							$names[ $plugin ] = $p[0];
						}
						foreach ( $forms as $f ) :
							$value = $f['plugin'] . ':' . $f['id'];
							?>
							<label style="display:block;margin:4px 0">
								<input type="checkbox" name="<?php echo esc_attr( WAPADESK_OPTION ); ?>[forms][]" value="<?php echo esc_attr( $value ); ?>" <?php checked( $f['enabled'] ); ?> />
								<?php echo esc_html( '' !== $f['title'] ? $f['title'] : '#' . $f['id'] ); ?>
								<span class="description">(<?php echo esc_html( $names[ $f['plugin'] ] ); ?>)</span>
								<?php if ( isset( $f['hasConsent'] ) && ! $f['hasConsent'] ) : ?>
									<span class="description" style="color:#996800"> — <?php esc_html_e( 'no consent or privacy box: make sure the form tells people how their details are used', 'ege-digital-chat-button' ); ?></span>
								<?php endif; ?>
							</label>
						<?php endforeach; ?>
						<p class="description"><?php esc_html_e( 'Only tick forms where people contact you. Leave newsletters, job applications and similar forms off.', 'ege-digital-chat-button' ); ?></p>
					</fieldset>
				<?php endif; ?>
			</td>
		</tr>
		<?php if ( '' !== $key ) : ?>
		<tr>
			<th scope="row"><?php esc_html_e( 'Status', 'ege-digital-chat-button' ); ?></th>
			<td>
				<p>
					<?php
					echo esc_html(
						! empty( $status['last_sent'] )
							/* translators: %s: date and time */
							? sprintf( __( 'Last sent: %s.', 'ege-digital-chat-button' ), wp_date( 'j M Y H:i', (int) $status['last_sent'] ) )
							: __( 'Nothing sent yet.', 'ege-digital-chat-button' )
					);
					if ( $waiting > 0 ) {
						/* translators: %d: number of submissions */
						echo ' ' . esc_html( sprintf( _n( '%d submission is waiting to be retried.', '%d submissions are waiting to be retried.', $waiting, 'ege-digital-chat-button' ), $waiting ) );
					}
					if ( ! empty( $status['dropped'] ) ) {
						/* translators: %d: number of submissions */
						echo ' ' . esc_html( sprintf( __( '%d could not be sent within a day; they are still in your form plugin and its emails.', 'ege-digital-chat-button' ), (int) $status['dropped'] ) );
					}
					?>
				</p>
				<?php if ( ! empty( $status['last_error'] ) && ( empty( $status['last_sent'] ) || $status['error_at'] > $status['last_sent'] ) ) : ?>
					<p class="description"><?php echo esc_html( sprintf( /* translators: 1: date, 2: message */ __( 'Last problem (%1$s): %2$s', 'ege-digital-chat-button' ), wp_date( 'j M H:i', (int) $status['error_at'] ), $status['last_error'] ) ); ?></p>
				<?php endif; ?>
			</td>
		</tr>
		<?php endif; ?>
	</table>
	<?php
}

/** The "Test connection" button lives outside the settings form (a form cannot nest). */
function wapadesk_test_button() {
	if ( '' === wapadesk_connection_key() ) {
		return;
	}
	?>
	<form method="post" action="<?php echo esc_url( admin_url( 'admin-post.php' ) ); ?>">
		<input type="hidden" name="action" value="wapadesk_test" />
		<?php wp_nonce_field( 'wapadesk_test' ); ?>
		<?php submit_button( __( 'Test connection', 'ege-digital-chat-button' ), 'secondary', 'submit', false ); ?>
	</form>
	<?php
}