<?php

defined('BASEPATH') or exit('No direct script access allowed');
/*
Module Name: Appointly
Description: Perfex CRM Advanced CRM Appointments Module
Version: 1.3.5
Author: iDev
Author URI: https://idevalex.com
Requires at least: 3.0.0
*/

$CI = &get_instance();

define('APPOINTLY_MODULE_NAME', 'appointly');
define('APPOINTLY_SMS_APPOINTMENT_APPROVED_TO_CLIENT', 'appointly_appointment_approved_send_to_client');
define('APPOINTLY_SMS_APPOINTMENT_CANCELLED_TO_CLIENT', 'appointly_appointment_cancelled_to_client');
define('APPOINTLY_SMS_APPOINTMENT_APPOINTMENT_REMINDER_TO_CLIENT', 'appointly_appointment_reminder_to_client');
define('APPOINTLY_SMS_APPOINTMENT_UPDATED_TO_CLIENT', 'appointly_appointment_updated_to_client');

hooks()->add_action('admin_init', 'appointly_register_permissions');
hooks()->add_action('admin_init', 'appointly_register_menu_items');
hooks()->add_action('clients_init', 'appointly_clients_area_schedule_appointment');
hooks()->add_action('after_cron_run', 'appointly_send_email_templates');
hooks()->add_action('after_cron_run', 'appointly_recurring_events');
hooks()->add_action('app_admin_footer', 'appointly_add_filters_js');
hooks()->add_action('app_admin_footer', 'appointly_get_environment');
hooks()->add_action('after_email_templates', 'appointly_add_email_templates');

// Add appointments permission to client contact permissions
hooks()->add_filter('get_contact_permissions', 'appointly_add_contact_permission');

// Hooks moved from helper file
hooks()->add_action('app_admin_head', 'appointly_head_components');
hooks()->add_action('app_admin_footer', 'appointly_footer_components');
hooks()->add_filter('available_tracking_templates', 'add_appointment_approved_email_tracking');

register_merge_fields('appointly/merge_fields/appointly_merge_fields');

/**
 * Functions moved from helper file for hooks
 */

/**
 * Email tracking
 *
 * @param $slugs
 *
 * @return mixed
 */
if (! function_exists('add_appointment_approved_email_tracking')) {
    function add_appointment_approved_email_tracking($slugs)
    {
        if (! in_array('appointment-approved-to-contact', $slugs)) {
            $slugs[] = 'appointment-approved-to-contact';
        }

        return $slugs;
    }
}

/**
 * Injects theme CSS.
 */
if (! function_exists('appointly_head_components')) {
    function appointly_head_components()
    {
        echo '<link href="' . module_dir_url(APPOINTLY_MODULE_NAME, 'assets/css/styles.css?v=' . time()) . '" rel="stylesheet" type="text/css">';
    }
}

/**
 * Injects theme JS for global modal.
 */
if (! function_exists('appointly_footer_components')) {
    function appointly_footer_components()
    {
        echo '<script src="' . module_dir_url(APPOINTLY_MODULE_NAME, 'assets/js/global.js?v=' . time()) . '" type="text/javascript"></script>';
    }
}

hooks()->add_filter('other_merge_fields_available_for', 'appointly_register_other_merge_fields');
hooks()->add_filter('available_merge_fields', 'appointly_allow_staff_merge_fields_for_appointment_templates');
hooks()->add_filter('get_dashboard_widgets', 'appointly_register_dashboard_widgets');
hooks()->add_filter('calendar_data', 'appointly_register_appointments_on_calendar', 10, 2);


/**
 * Schedule appointment menu items in client area
 */
if (! function_exists('appointly_clients_area_schedule_appointment')) {
    function appointly_clients_area_schedule_appointment()
    {
        if (get_option('appointly_show_clients_schedule_button') == 1 && ! is_client_logged_in()) {
            add_theme_menu_item('schedule-appointment-id', [
                'name'     => _l('appointly_schedule_new_appointment'),
                'href'     => site_url('appointly/appointments_public/book?col=col-md-8+col-md-offset-2'),
                'position' => 10,
            ]);
        }

        // Item is available for logged in clients if enabled in Setup->Settings->Appointment
        if (is_client_logged_in()) {
            if (get_option('appointly_tab_on_clients_page') == 1 && has_contact_permission('appointments')) {
                // Add Appointments menu item instead of just "Schedule"
                add_theme_menu_item('appointments', [
                    'name'     => _l('appointment_appointments'),
                    'href'     => site_url('appointly/appointment_clients/appointments'),
                    'position' => 5,
                    'icon'     => 'fa-regular fa-calendar-check',
                ]);
            }
        }
    }
}

/**
 * Register appointments on staff and clients calendar.
 *
 * @param $data
 * @param $config
 *
 * @return mixed
 */
function appointly_register_appointments_on_calendar($data, $config)
{
    $CI = &get_instance();
    $CI->load->model('appointly/appointly_model', 'apm');

    // Get calendar data from the model
    return $CI->apm->get_calendar_data($config['start'], $config['end'], $data);
}


hooks()->add_action('after_custom_fields_select_options', 'appointly_custom_fields');
/**
 * Register new custom fields for
 *
 * @param $custom_field
 */
function appointly_custom_fields($custom_field)
{
    $selected = (isset($custom_field) && $custom_field->fieldto == 'appointly') ? 'selected' : '';
    echo '<option value="appointly"  ' . ($selected) . '>' . _l('appointment_appointments') . '</option>';
}

/**
 * Get today's appointments to render in dashboard widget.
 *
 * @param  array  $widgets
 *
 * @return array
 */
function appointly_register_dashboard_widgets($widgets)
{
    // Add today's appointments widget if enabled
    if (get_option('appointly_today_widget_enabled') == '1') {
        $widgets[] = [
            'container' => 'left-8',
            'path'      => 'appointly/widgets/today_appointments',
        ];
    }

    // Add upcoming appointments widget if enabled
    if (get_option('appointly_upcoming_widget_enabled') == '1') {
        $widgets[] = [
            'container' => 'left-8',
            'path'      => 'appointly/widgets/upcoming_appointments',
        ];
    }

    return $widgets;
}

/**
 * Get staff fields and insert into email templates for appointly.
 *
 * @param [array] $fields
 *
 * @return array
 */
function appointly_allow_staff_merge_fields_for_appointment_templates($fields)
{
    $appointlyStaffFields = ['{staff_firstname}', '{staff_lastname}'];

    foreach ($fields as $index => $group) {
        foreach ($group as $key => $groupFields) {
            if ($key == 'staff') {
                foreach ($groupFields as $groupIndex => $groupField) {
                    if (in_array(
                        $groupField['key'],
                        $appointlyStaffFields,
                        true
                    )) {
                        $fields[$index][$key][$groupIndex]['available'] = array_merge(
                            $fields[$index][$key][$groupIndex]['available'],
                            ['appointly']
                        );
                    }
                }
                break;
            }
        }
    }

    return $fields;
}

/**
 * Register other merge fields for appointly.
 *
 * @param  array  $for
 *
 * @return array
 */
function appointly_register_other_merge_fields($for)
{
    $for[] = 'appointly';

    return $for;
}

/**
 * Hook for assigning staff permissions for appointments module.
 */
function appointly_register_permissions()
{
    $capabilities = [];

    $capabilities['capabilities'] = [
        'view'         => _l('permission_view'),
        'create'       => _l('permission_create'),
        'edit'         => _l('permission_edit'),
        'delete'       => _l('permission_delete'),
        'approve'      => _l('permission_approve'),
        'view_reports' => _l('permission_view_reports'),
    ];

    register_staff_capabilities('appointments', $capabilities, _l('appointment_appointments'));
}

function appointly_get_environment()
{
    echo '<script>document.addEventListener("DOMContentLoaded", function() { window.AppointlyEnv = "' . ENVIRONMENT . '"; });</script>';
}

/**
 * Ensure menu item has all required keys to prevent position errors
 */
function appointly_ensure_menu_item_structure($item)
{
    // Ensure all required keys exist with defaults
    $defaults = [
        'position' => 0,
        'icon'     => '',
        'href'     => '#',
    ];

    return array_merge($defaults, $item);
}

/**
 * Register new menu item in sidebar menu.
 */
function appointly_register_menu_items()
{
    $CI = &get_instance();

    if (staff_can('view', 'appointments')) {
        $CI->app_menu->add_sidebar_menu_item(APPOINTLY_MODULE_NAME, appointly_ensure_menu_item_structure([
            'name'     => _l('appointly_module_name'),
            'href'     => admin_url('appointly/appointments'),
            'position' => 20,
            'icon'     => 'fa-solid fa-calendar-check',
        ]));
        $CI->app_menu->add_sidebar_children_item(APPOINTLY_MODULE_NAME, appointly_ensure_menu_item_structure([
            'slug'     => 'appointly-user-dashboard',
            'name'     => _l('appointment_appointments'),
            'href'     => admin_url('appointly/appointments'),
            'position' => 1,
            'icon'     => 'fa-solid fa-table-list',
        ]));
    }


    if (staff_can('edit', 'appointments')) {
        $CI->app_menu->add_sidebar_children_item(APPOINTLY_MODULE_NAME, appointly_ensure_menu_item_structure([
            'slug'     => 'appointly-services',
            'name'     => _l('appointment_services_menu_label'),
            'href'     => admin_url('appointly/services'),
            'position' => 2,
            'icon'     => 'fa-solid fa-briefcase',
        ]));
    }

    if (staff_can('edit', 'appointments')) {
        $CI->app_menu->add_sidebar_children_item(APPOINTLY_MODULE_NAME, appointly_ensure_menu_item_structure([
            'slug'     => 'appointly-company-schedule',
            'name'     => _l('appointly_company_schedule'),
            'href'     => admin_url('appointly/services/company_schedule'),
            'position' => 3,
            'icon'     => 'fa-solid fa-business-time',
        ]));
    }

    if (staff_can('edit', 'appointments')) {
        $position = is_admin() ? 4 : 3;
        $CI->app_menu->add_sidebar_children_item(APPOINTLY_MODULE_NAME, appointly_ensure_menu_item_structure([
            'slug'     => 'appointly-staff-working-hours',
            'name'     => _l('appointly_staff_working_hours'),
            'href'     => admin_url('appointly/services/staff_working_hours'),
            'position' => $position,
            'icon'     => 'fa-solid fa-user-clock',
        ]));
    }

    $position = is_admin() ? 5 : 4;
    $CI->app_menu->add_sidebar_children_item(APPOINTLY_MODULE_NAME, appointly_ensure_menu_item_structure([
        'slug'     => 'appointly-user-history',
        'name'     => _l('appointment_history_label_menu_label'),
        'href'     => admin_url('appointly/appointments_history'),
        'position' => $position,
        'icon'     => 'fa-solid fa-clock-rotate-left',
    ]));

    if (staff_can('view_reports', 'appointments')) {
        $position = is_admin() ? 6 : 5;
        $CI->app_menu->add_sidebar_children_item(APPOINTLY_MODULE_NAME, appointly_ensure_menu_item_structure([
            'slug'     => 'appointly-reports',
            'name'     => _l('appointment_analytics_and_reports_menu_label'),
            'icon'     => 'fa-solid fa-chart-line',
            'href'     => admin_url('appointly/reports'),
            'position' => $position,
        ]));
    }

    $position = is_admin() ? 7 : 6;
    $CI->app_menu->add_sidebar_children_item(APPOINTLY_MODULE_NAME, appointly_ensure_menu_item_structure([
        'slug'            => 'appointly-link-menu-form',
        'name'            => _l('appointment_menu_form_link'),
        'href'            => site_url('appointly/appointments_public/book?col=col-md-8+col-md-offset-2'),
        'href_attributes' => 'target="_blank" rel="noopener noreferrer"',
        'position'        => $position,
        'icon'            => 'fa-solid fa-link',
    ]));

    if (staff_can('edit', 'appointments')) {
        $position = is_admin() ? 8 : 7;
        $CI->app_menu->add_sidebar_children_item(APPOINTLY_MODULE_NAME, appointly_ensure_menu_item_structure([
            'slug'     => 'appointly-settings',
            'name'     => _l('settings'),
            'href'     => admin_url('settings?group=appointly_settings'),
            'position' => $position,
            'icon'     => 'fa-solid fa-sliders',
        ]));
    }
}

/*
 * Register activation hook
 */
register_activation_hook(APPOINTLY_MODULE_NAME, 'appointly_activation_hook');

/**
 * The activation function.
 */
function appointly_activation_hook()
{
    require __DIR__ . '/install.php';

    // Automatically reset menu after installation to ensure Services menu appears
    if (function_exists('update_option')) {
        update_option('aside_menu_active', json_encode([]));
        log_message('info', 'Appointly: Menu automatically reset after installation');
    }
}

/*
 * Register module language files
 */
register_language_files(APPOINTLY_MODULE_NAME, ['appointly']);

/*
 * Loads the module function helper
 */
$CI->load->helper([APPOINTLY_MODULE_NAME . '/appointly', APPOINTLY_MODULE_NAME . '/appointly_google']);

/**
 * Register cron email templates.
 */
function appointly_send_email_templates()
{
    $CI = &get_instance();
    $CI->load->model('appointly/appointly_attendees_model', 'atm');

    // User events
    $CI->db->where("(notification_date IS NULL AND reminder_before IS NOT NULL AND status = 'in-progress')");

    $appointments   = $CI->db->get(db_prefix() . 'appointly_appointments')->result_array();
    $notified_users = [];

    foreach ($appointments as $appointment) {
        $date_compare = date('Y-m-d H:i', strtotime('+' . $appointment['reminder_before'] . ' ' . strtoupper($appointment['reminder_before_type'])));

        if ($appointment['date'] . ' ' . $appointment['start_hour'] <= $date_compare) {
            if (date('Y-m-d H:i', strtotime($appointment['date'] . ' ' . $appointment['start_hour'])) < date('Y-m-d H:i')) {
                /*
                 * If appointment is missed then skip
                 */
                continue;
            }

            $attendees = $CI->atm->get($appointment['id']);

            foreach ($attendees as $staff) {
                add_notification([
                    'description' => 'appointment_you_have_new_appointment',
                    'touserid'    => $staff['staffid'],
                    'fromcompany' => true,
                    'link'        => 'appointly/appointments/view?appointment_id=' . $appointment['id'],
                ]);

                $notified_users[] = $staff['staffid'];

                send_mail_template('appointly_appointment_cron_reminder_to_staff', 'appointly', array_to_object($appointment), array_to_object($staff));
            }

            $template = mail_template('appointly_appointment_cron_reminder_to_contact', 'appointly', array_to_object($appointment));

            $merge_fields = $template->get_merge_fields();

            $template->send();

            if ($appointment['by_sms'] == 1 && ! empty($appointment['phone'])) {
                $CI->app_sms->trigger(APPOINTLY_SMS_APPOINTMENT_APPOINTMENT_REMINDER_TO_CLIENT, $appointment['phone'], $merge_fields);
            }

            $CI->db->where('id', $appointment['id']);
            $CI->db->update('appointly_appointments', ['notification_date' => date('Y-m-d H:i:s')]);
        }
    }
    pusher_trigger_notification(array_unique($notified_users));
}

function appointly_recurring_events()
{
    $CI             = &get_instance();
    $tableAttendees = db_prefix() . 'appointly_attendees';
    $table          = db_prefix() . 'appointly_appointments';

    // User events
    $CI->db->where('recurring', 1);
    $CI->db->where('(cycles != total_cycles OR cycles=0)');

    $appointments = $CI->db->get(db_prefix() . 'appointly_appointments')->result_array();


    foreach ($appointments as $appointment) {
        $type                = $appointment['recurring_type'];
        $repeat_every        = $appointment['repeat_every'];
        $last_recurring_date = $appointment['last_recurring_date'];

        $appointment_date = $appointment['date'];

        // Current date Check if it is first recurring
        if (! $last_recurring_date) {
            $last_recurring_date = date('Y-m-d', strtotime($appointment_date));
        } else {
            $last_recurring_date = date('Y-m-d', strtotime($last_recurring_date));
        }

        $re_create_at = date(
            'Y-m-d',
            strtotime('+' . $repeat_every . ' ' . strtoupper($type), strtotime($last_recurring_date))
        );

        if (date('Y-m-d') >= $re_create_at) {
            // Load model for availability checking
            if (!isset($CI->appointly_model)) {
                $CI->load->model('appointly/appointly_model');
            }

            // Check if the date is a company-wide blocked day
            $blocked_days = get_appointly_blocked_days();
            if (in_array($re_create_at, $blocked_days)) {
                log_message('info', "Recurring appointment {$appointment['id']} skipped - date {$re_create_at} is blocked");

                // Update last_recurring_date to skip this occurrence
                $CI->db->where('id', $appointment['id']);
                $CI->db->update($table, ['last_recurring_date' => $re_create_at]);

                // Increment total_cycles to keep count accurate
                $CI->db->where('id', $appointment['id']);
                $CI->db->set('total_cycles', 'total_cycles+1', false);
                $CI->db->update($table);

                continue; // Skip this occurrence
            }

            // Check if provider is available on this date/time
            if (!empty($appointment['provider_id']) && !empty($appointment['start_hour']) && !empty($appointment['duration'])) {
                $available_slots = $CI->appointly_model->get_available_hours_by_date(
                    $appointment['provider_id'],
                    $re_create_at,
                    null, // exclude_appointment_id
                    $appointment['duration']
                );

                $start_time_check = date('H:i', strtotime($appointment['start_hour']));
                $slot_available = false;

                foreach ($available_slots as $slot) {
                    if ($slot['time'] === $start_time_check && $slot['available']) {
                        $slot_available = true;
                        break;
                    }
                }

                if (!$slot_available) {
                    log_message('warning', "Recurring appointment {$appointment['id']} skipped - time slot {$start_time_check} not available on {$re_create_at}");

                    // Update last_recurring_date to skip this occurrence
                    $CI->db->where('id', $appointment['id']);
                    $CI->db->update($table, ['last_recurring_date' => $re_create_at]);

                    // Increment total_cycles
                    $CI->db->where('id', $appointment['id']);
                    $CI->db->set('total_cycles', 'total_cycles+1', false);
                    $CI->db->update($table);

                    // Optionally notify admin about skipped recurring appointment
                    if (!empty($appointment['created_by'])) {
                        add_notification([
                            'description' => 'Recurring appointment skipped - time slot not available on ' . $re_create_at,
                            'touserid'    => $appointment['created_by'],
                            'fromcompany' => true,
                            'link'        => 'appointly/appointments/view?appointment_id=' . $appointment['id'],
                        ]);
                    }

                    continue; // Skip this occurrence
                }
            }

            // Ok, we can create the appointment - slot is available
            $newAppointmentData = [];

            $newAppointmentData['date'] = $re_create_at;

            $newAppointmentData = array_merge($newAppointmentData, convertDateForDatabase($newAppointmentData['date']));

            // Calendar integration fields (reset for new appointment)
            $newAppointmentData['google_event_id']       = null;
            $newAppointmentData['google_calendar_link']  = null;
            $newAppointmentData['google_meet_link']      = null;
            $newAppointmentData['google_added_by_id']    = $appointment['google_added_by_id'];
            $newAppointmentData['outlook_event_id']      = $appointment['outlook_event_id'];
            $newAppointmentData['outlook_calendar_link'] = $appointment['outlook_calendar_link'];
            $newAppointmentData['outlook_added_by_id']   = $appointment['outlook_added_by_id'];

            // Basic appointment details (preserved from original)
            $newAppointmentData['subject']               = $appointment['subject'];
            $newAppointmentData['description']           = $appointment['description'];
            $newAppointmentData['email']                 = $appointment['email'];
            $newAppointmentData['name']                  = $appointment['name'];
            $newAppointmentData['phone']                 = $appointment['phone'];
            $newAppointmentData['address']               = $appointment['address'];
            $newAppointmentData['notes']                 = $appointment['notes'];
            $newAppointmentData['contact_id']            = $appointment['contact_id'];

            // Notification settings (preserved from original)
            $newAppointmentData['by_sms']                = $appointment['by_sms'];
            $newAppointmentData['by_email']              = $appointment['by_email'];

            // Time and scheduling fields
            $newAppointmentData['hash']                  = app_generate_hash();
            $newAppointmentData['start_hour']            = $appointment['start_hour'];
            $newAppointmentData['end_hour']              = $appointment['end_hour'];
            $newAppointmentData['duration']              = $appointment['duration'];
            $newAppointmentData['timezone']              = $appointment['timezone'];

            // Service and provider
            $newAppointmentData['service_id']            = $appointment['service_id'];
            $newAppointmentData['provider_id']           = $appointment['provider_id'];

            // Status and tracking
            $newAppointmentData['status']                = 'in-progress';
            $newAppointmentData['created_by']            = $appointment['created_by'];

            // Reminder settings (preserved from original)
            $newAppointmentData['reminder_before']       = $appointment['reminder_before'];
            $newAppointmentData['reminder_before_type']  = $appointment['reminder_before_type'];

            // Additional fields
            $newAppointmentData['cancel_notes']          = $appointment['cancel_notes'];
            $newAppointmentData['source']                = $appointment['source'];
            $newAppointmentData['feedback_comment']      = $appointment['feedback_comment'];
            $newAppointmentData['files']                 = $appointment['files'];

            // Reset fields for new appointment
            $newAppointmentData['notification_date']          = null;
            $newAppointmentData['external_notification_date'] = null;
            $newAppointmentData['feedback']                   = null;
            $newAppointmentData['invoice_id']                 = null;
            $newAppointmentData['invoice_date']               = null;

            // Recurring fields (reset - this is a generated child, not a recurring parent)
            $newAppointmentData['recurring_type']        = null;
            $newAppointmentData['repeat_every']          = 0;
            $newAppointmentData['recurring']             = 0;
            $newAppointmentData['cycles']                = 0;
            $newAppointmentData['total_cycles']          = 0;
            $newAppointmentData['custom_recurring']      = 0;
            $newAppointmentData['last_recurring_date']   = null;


            $newAppointmentData = handleDataReminderFields($newAppointmentData);

            $CI->db->insert($table, $newAppointmentData);

            $insert_id = $CI->db->insert_id();

            if ($insert_id) {
                // Get the old appointment custom field and add to the new
                $fieldTo       = 'appointly';
                $custom_fields = get_custom_fields($fieldTo);

                foreach ($custom_fields as $field) {
                    $value = get_custom_field_value($appointment['id'], $field['id'], $fieldTo, false);

                    if ($value != '') {
                        $CI->db->insert(db_prefix() . 'customfieldsvalues', [
                            'relid'   => $insert_id,
                            'fieldid' => $field['id'],
                            'fieldto' => $fieldTo,
                            'value'   => $value,
                        ]);
                    }
                }

                // update recurring date for original appointment
                $CI->db->where('id', $appointment['id']);
                $CI->db->update($table, ['last_recurring_date' => $re_create_at]);

                // set total_cycles +1 for original appointment
                $CI->db->where('id', $appointment['id']);
                $CI->db->set('total_cycles', 'total_cycles+1', false);
                $CI->db->update($table);

                $googleAttendees = [];

                // insert attendees for new appointment
                $originalAttendees = $CI->db->where('appointment_id', $appointment['id'])
                    ->get($tableAttendees)->result_array();

                foreach ($originalAttendees as &$attendee) {
                    $googleAttendees[]          = $attendee['staff_id'];
                    $attendee['appointment_id'] = $insert_id;
                }

                $CI->db->insert_batch($tableAttendees, $originalAttendees);

                // Copy service relationships from original appointment
                $originalServices = $CI->db->where('appointment_id', $appointment['id'])
                    ->get(db_prefix() . 'appointly_appointment_services')->result_array();

                if (!empty($originalServices)) {
                    foreach ($originalServices as &$service) {
                        $service['appointment_id'] = $insert_id;
                    }
                    $CI->db->insert_batch(db_prefix() . 'appointly_appointment_services', $originalServices);
                }

                // google calendar
                if ($appointment['google_event_id'] != '') {
                    $CI->load->model('appointly/appointly_model');

                    $lastInsertedAppointment = $CI->db->where('id', $insert_id)->get($table)->row_array();

                    $googleInsertData = $CI->appointly_model->recurringAddGoogleNewEvent(
                        $lastInsertedAppointment,
                        $googleAttendees
                    );

                    if (! empty($googleInsertData)) {
                        // update appointment wih new google event data
                        $CI->db->where('id', $insert_id);
                        $CI->db->update($table, $googleInsertData);
                    }
                }

                newRecurringAppointmentNotifications($insert_id);


                foreach ($googleAttendees as $googleAttendee) {
                    add_notification([
                        'description' => 'appointment_recurring_re_created',
                        'touserid'    => $googleAttendee['staff_id'],
                        'fromcompany' => true,
                        'link'        => 'appointly/appointments/view?appointment_id=' . $insert_id,
                    ]);

                    pusher_trigger_notification([$googleAttendee['staff_id']]);
                }
            }
        }
    }
}

hooks()->add_filter('sms_gateway_available_triggers', 'appointly_register_sms_triggers');
/**
 * Register SMS Triggers for appointly.
 *
 * @param [array] $triggers
 *
 * @return array
 */
function appointly_register_sms_triggers($triggers)
{
    // Enhanced merge fields for comprehensive SMS notifications
    $enhanced_merge_fields = [
        '{appointment_subject}',
        '{appointment_date}',
        '{appointment_client_name}',
        '{appointment_location}',
        '{appointment_provider_name}',
        '{appointment_description}',
        '{appointment_public_url}',
        '{appointment_client_phone}',
        '{appointment_client_email}',
        '{appointment_google_meet_link}',
    ];

    $triggers[APPOINTLY_SMS_APPOINTMENT_APPROVED_TO_CLIENT] = [
        'merge_fields' => $enhanced_merge_fields,
        'label'        => 'Appointment approved (Sent to Contact)',
        'info'         => 'Trigger when appointment is approved, SMS will be sent to the appointment contact number.',
    ];

    $triggers[APPOINTLY_SMS_APPOINTMENT_CANCELLED_TO_CLIENT] = [
        'merge_fields' => array_merge($enhanced_merge_fields, [
            '{appointment_cancel_notes}',
        ]),
        'label'        => 'Appointment cancelled (Sent to Contact)',
        'info'         => 'Trigger when appointment is cancelled, SMS will be sent to the appointment contact number.',
    ];

    $triggers[APPOINTLY_SMS_APPOINTMENT_APPOINTMENT_REMINDER_TO_CLIENT] = [
        'merge_fields' => $enhanced_merge_fields,
        'label'        => 'Appointment reminder (Sent to Contact)',
        'info'         => 'Trigger when reminder before date is set when appointment is created, SMS will be sent to the appointment contact number.',
    ];

    $triggers[APPOINTLY_SMS_APPOINTMENT_UPDATED_TO_CLIENT] = [
        'merge_fields' => $enhanced_merge_fields,
        'label'        => 'Appointment updated (Sent to Contact)',
        'info'         => 'Trigger when appointment is updated, SMS will be sent to the appointment contact number.',
    ];

    return $triggers;
}


/*
 * Check if can have permissions then apply new tab in settings
 */
hooks()->add_action('admin_init', 'appointly_add_settings_section');

function appointly_add_settings_section()
{
    $CI = &get_instance();
    // Message: app_tabs->add_settings_tab is deprecated since version 3.2.0! Use app->add_settings_section instead.

    if (version_compare(get_app_version(), '3.2.0', '<')) {
        $CI->app_tabs->add_settings_tab('appointly-settings', [
            'name'     => _l('appointment_appointments'),
            'view'     => 'appointly/appointly_settings',
            'position' => 36,
        ]);
    } else {
        $CI->app->add_settings_section('appointly-settings', [
            'title'    => _l('appointly_module_name'),
            'position' => 36,
            'children' => [
                [
                    'name'     => _l('appointment_appointments'),
                    'view'     => 'appointly/appointly_settings',
                    'icon'     => 'fa-regular fa-calendar fa-fw fa-lg',
                    'position' => 10,
                ],
            ],
        ]);
    }
}

/*
 * Need to change encode array values to string for database before post
 * Intercepting settings-form
 */
hooks()->add_filter('before_settings_updated', 'modify_settings_form_post');

function modify_settings_form_post($form)
{
    if (isset($form['settings']['appointly_default_feedbacks'])) {
        $form['settings']['appointly_default_feedbacks'] = json_encode(
            $form['settings']['appointly_default_feedbacks']
        );
        if ($form['settings']['appointly_default_feedbacks'] == null) {
            $form['settings']['appointly_default_feedbacks'] = json_encode([]);
        }
    }

    return $form;
}

if (! function_exists('appointly_add_filters_js')) {
    function appointly_add_filters_js()
    {
        // Only load on appointment pages
        $CI = &get_instance();

        // Load core script for debugging control
        echo '<script src="' . module_dir_url(APPOINTLY_MODULE_NAME, 'assets/js/appointly-core.js') . '?v=' . time() . '"></script>';

        // Load enhanced calendar tooltips on dashboard and calendar pages
        if (
            strpos($CI->uri->uri_string(), 'admin') !== false ||
            strpos($CI->uri->uri_string(), 'admin/utilities/calendar') !== false ||
            strpos($CI->uri->uri_string(), 'appointly/appointments') !== false
        ) {
            // Load tooltip CSS
            echo '<link rel="stylesheet" href="' . module_dir_url(APPOINTLY_MODULE_NAME, 'assets/css/appointly_calendar_tooltips.css') . '?v=' . time() . '">';

            // Load tooltip JavaScript
            echo '<script src="' . module_dir_url(APPOINTLY_MODULE_NAME, 'assets/js/appointly_calendar_tooltips.js') . '?v=' . time() . '"></script>';
        }

        if (strpos($CI->uri->uri_string(), 'appointly/appointments') !== false) {
            echo '<script src="' . module_dir_url(APPOINTLY_MODULE_NAME, 'assets/js/appointly_filters.js') . '?v=' . time() . '"></script>';
        }
    }
}


// Lead tab hooks
hooks()->add_action('after_lead_lead_tabs', 'appointly_add_appointment_tab_to_lead');
hooks()->add_action('after_lead_tabs_content', 'appointly_add_appointment_content_to_lead');

function appointly_add_appointment_tab_to_lead($lead)
{
?>
    <li role="presentation">
        <a href="#lead_appointments" aria-controls="lead_appointments" role="tab" data-toggle="tab">
            <i class="fa-regular fa-calendar"></i>
            <?php
            echo _l('appointment_appointments'); ?>
        </a>
    </li>
<?php
}

function appointly_add_appointment_content_to_lead($lead)
{
?>
    <div role="tabpanel" class="tab-pane" id="lead_appointments">
        <?php
        $CI = &get_instance();
        $CI->load->model('appointly/appointly_model');
        $appointments = $CI->appointly_model->get_lead_appointments($lead->id);
        $CI->load->view('appointly/lead_appointments', ['appointments' => $appointments, 'lead' => $lead]);
        ?>
    </div>
<?php
}

/*
 * Add appointments tab to client profile
 */
hooks()->add_action('admin_init', 'appointly_add_appointments_tab_to_client_profile');

function appointly_add_appointments_tab_to_client_profile()
{
    $CI = &get_instance();

    $CI->app_tabs->add_customer_profile_tab('appointments', [
        'name'     => _l('appointment_appointments'),
        'icon'     => 'fa-regular fa-calendar',
        'view'     => 'appointly/client_appointments_tab',
        'position' => 6,
    ]);
}

/**
 * Send Pusher notification when appointment invoice is paid
 */
hooks()->add_action('after_payment_added', function ($payment_id) {
    $CI = &get_instance();
    $payment = $CI->payments_model->get($payment_id);

    // Check if payment is for an appointment invoice
    $CI->db->select('provider_id, subject');
    $CI->db->where('invoice_id', $payment->invoiceid);
    $appointment = $CI->db->get(db_prefix() . 'appointly_appointments')->row();

    if ($appointment && $appointment->provider_id) {
        add_notification([
            'description' => _l('payment_received_for_appointment') . ' ' . $appointment->subject,
            'touserid' => $appointment->provider_id,
            'fromcompany' => true,
            'link' => 'appointly/appointments/view?appointment_id=' . $appointment->id,
        ]);

        pusher_trigger_notification([$appointment->provider_id]);
    }
});

/**
 * Add appointly email templates to the admin email templates page
 *
 * @return void
 */
if (! function_exists('appointly_add_email_templates')) {
    function appointly_add_email_templates()
    {
        $CI = &get_instance();

        $data['appointly_templates'] = $CI->emails_model->get(['type' => 'appointly', 'language' => 'english']);
        $data['hasPermissionEdit'] = staff_can('edit', 'email_templates');

        $CI->load->view('appointly/email_templates', $data);
    }
}

/**
 * Add appointments permission to client contact permissions
 *
 * @param array $permissions
 * @return array
 */
function appointly_add_contact_permission($permissions)
{
    $maxId = 0;
    foreach ($permissions as $perm) {
        if (isset($perm['id']) && is_numeric($perm['id'])) {
            $id = (int) $perm['id'];
            if ($id > $maxId) $maxId = $id;
        }
    }

    $permissions[] = [
        'id'         => $maxId + 1,
        'name'       => _l('customer_permission_appointments'),
        'short_name' => 'appointments',
    ];

    return $permissions;
}

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