<?php

class PeepSoConfigSectionNotifications extends PeepSoConfigSectionAbstract
{
    // Builds the groups array
    public function register_config_groups()
    {

        if(isset($_REQUEST['reset_all_users_notification_preferences'])) {
            PeepSoUser::reset_all_users_notification_preferences();
            PeepSo::redirect(add_query_arg(['notifications_reset'=>1],remove_query_arg('reset_all_users_notification_preferences', $_SERVER['REQUEST_URI'])));
        }

        if(isset($_REQUEST['reset_all_users_email_intensity'])) {
            PeepSoUser::reset_all_users_email_intensity();
            PeepSo::redirect(add_query_arg(['notifications_reset'=>1],remove_query_arg('reset_all_users_email_intensity', $_SERVER['REQUEST_URI'])));
        }

        if(isset($_REQUEST['notifications_reset'])) {
            $peepso_admin = PeepSoAdmin::get_instance();
            $peepso_admin->add_notice("Notifications preferences have been reset", "note");
        }
        // LEFT
        $this->context='left';

        $this->notification_previews();
        $this->post_follow();

        if(PeepSo::is_dev_mode('web_push')) {
            $this->web_push();
        }

        // RIGHT
        $this->context = 'right';
        $this->notification_defaults();
        $this->reset();

        // BOTTOM
        $this->context='full';
        $this->emails();
    }

    private function notification_previews()
    {

        //$this->args('descript', __('By default the full cover displays only in the header of the "Stream" section'));
        $this->args('default',1);
        $this->set_field(
            'notification_previews',
            __('Enabled', 'peepso-core'),
            'yesno_switch'
        );

        $options = array();
        for($i=5;$i<=500;$i+=5) {
            $options[$i] = $i;// .' '. __('characters','peepso-core');
        }

        //$options[0] = __('Disabled', 'peepso-core');

        $this->args('default', 50);
        $this->args('options', $options);
        $this->args('descript', __('Notification previews will be trimmed to this length.  To avoid cutting words in the middle, the actual length of a preview might be shorter.','peepso-core'));
        $this->set_field(
            'notification_preview_length',
            __('Preview length', 'peepso-core'),
            'select'
        );

        $this->args('descript', __('If a notification is over the limit, the ellipsis will be attached to the end. The length of the potential ellipsis counts into a total notification preview length.','peepso-core'));
        $this->args('default', '...');
        $this->args('maxlength', 10);
        $this->args('size', 10);
        $this->set_field(
            'notification_preview_ellipsis',
            __('Ellipsis', 'peepso-core'),
            'text'
        );

        // Build Group
        $this->set_group(
            'notification_previews',
            __('On-site notification previews', 'peepso-core')
        );
    }

    private function post_follow()
    {
        $this->args('descript',__('Does not apply to post author', 'peepso-core'));
        $this->set_field(
            'post_follow_notify_react',
            __('Notify post followers about reactions', 'peepso-core'),
            'yesno_switch'
        );

        $this->set_field(
            'auto_follow_separator',
            __('Automatically follow posts', 'peepso-core'),
            'separator'
        );

        $this->set_field(
            'auto_follow_message',
            __('Decide which actions will trigger a post follow if the user has no prior relationship with a given post','peepso-core'),
            'message'
        );

        $this->set_field(
            'post_auto_follow_comment',
            _x('Comment', 'verb', 'peepso-core'),
            'yesno_switch'
        );

        $this->set_field(
            'post_auto_follow_react',
            _x('React', 'verb', 'peepso-core'),
            'yesno_switch'
        );

        $this->set_field(
            'post_auto_follow_save',
            _x('Save', 'verb', 'peepso-core'),
            'yesno_switch'
        );


        // Build Group
        $this->set_group(
            'autofollow',
            __('Post following & notifications','peepso-core')
        );
    }

    private function web_push() {

        $this->args('descript', __('Enabled: Web Push Notifications option will appear in user preferences', 'peepso-core'));
        $this->set_field(
            'web_push',
            __('Enabled', 'peepso-core'),
            'yesno_switch'
        );

        $this->args('descript', __('Defines the default state for all users who never set this notification preference', 'peepso-core'));
        $this->set_field(
            'web_push_user_default',
            __('Enable by default for users', 'peepso-core'),
            'yesno_switch'
        );


        $this->set_field(
            'web_push_private_key',
            __('Private Key', 'peepso-core'),
            'text'
        );


        $this->set_field(
            'web_push_public_key',
            __('Public Key', 'peepso-core'),
            'text'
        );
        $this->args('descript','lorem');
        $this->set_field(
            'web_push_keys_howto_header',
            __('How to generate keys', 'peepso-core'),
            'separator'
        );


        ob_start();
        ?>
        <pre class="ps-js-copy-source">openssl ecparam -genkey -name prime256v1 -out peepso_key.pem && rm -f peepso_pub_key.txt && rm -f peepso_prv_key.txt

openssl ec -in peepso_key.pem -pubout -outform DER|tail -c 65|base64|tr -d '=' |tr '/+' '_-' >> peepso_pub_key.txt

openssl ec -in peepso_key.pem -outform DER|tail -c +8|head -c 32|base64|tr -d '=' |tr '/+' '_-' >> peepso_prv_key.txt

clear && print "\nPrivate key:" && cat peepso_prv_key.txt

print "\n\nPublic key:" && cat peepso_pub_key.txt && print ""

</pre>
        <?php
        $pre = ob_get_clean();

        $this->set_field('web_push_keys_howto',
            "Use a <a href=\"https://www.google.com/search?q=browser+push+key+generator\" target=\"_blank\"> key generator</a> <b>or</b> the following commands (<a href=\"#\" class=\"ps-js-copy-trigger\" data-copy-success=\"copied\">click to copy</a>)"
            . $pre,
            'message'
        );

        // Build Group
        $this->set_group(
            'web_push',
            __('Web Push Notifications', 'peepso-core') . ' (Early Access)'
        );
    }

    private function notification_defaults() {


        $levels = PeepSoNotificationsIntensity::email_notifications_intensity_levels();

        $options = [];
        foreach($levels as $value => $level) {
            $options[$value] = $level['label'] . ' - ' . $level['desc'];
        }

        $this->args('options', $options);
        $this->set_field(
            'default_email_intensity',
            __('Email notification intensity', 'peepso-core'),
            'select'
        );


        $PeepSoProfile = PeepSoProfile::get_instance();
        $alerts = $PeepSoProfile->get_alerts_definition(TRUE);

        foreach($alerts as $group) {

            $this->set_field(
                'default_separator_'.$group['title'],
                $group['title'],
                'separator'
            );

            foreach($group['items'] as $item) {

                $this->set_field(
                    'default_separator_'.$item['setting'],
                    '<h5>'.$item['label'].'</h5>',
                    'message'
                );


                $this->args('default', 1);
                $this->set_field(
                    'default_onsite_'.$item['setting'],
                    __('On-site', 'peepso-core'),
                    'yesno_switch'
                );

                $this->args('default', 1);
                $this->set_field(
                    'default_email_'.$item['setting'],
                    __('Email', 'peepso-core'),
                    'yesno_switch'
                );

                $this->set_field(
                    'default_separator_'.time(),
                    '<br/>',
                    'message'
                );

            }
        }

        // Build Group
        $this->set_group(
            'notification_defaults',
            __('Notification defaults', 'peepso-core'),
            __('These defaults will only be applied to new users','peepso-core')
        );
    }

    private function reset() {

        $this->set_field('email_intensity_reset_sep', 'Email intensity', 'separator');
        $this->set_field('email_intensity_reset_msg', sprintf('%s to reset email <b>notification intensity</b> for all users', '<a href="'.add_query_arg('reset_all_users_email_intensity', 1).'">Click here</a>'), 'message');

        $this->set_field('notif_reset_sep', 'All notifications', 'separator');
        $this->set_field('notif_reset_msg', sprintf('%s to reset <b>notification preferences</b> for all users', '<a href="'.add_query_arg('reset_all_users_notification_preferences', 1).'">Click here</a>'), 'message');
        $this->set_group(
            'notification_defaults_reset',
            __('Reset all users to default', 'peepso-core'),
            'Enforces the current defaults on all users. Please save any configuration changes before proceeding.'
        );
    }

    private function emails()
    {
        // # Email Sender
        $this->args('validation', array('validate'));
        $this->args('data', array(
            'rule-min-length' => 1,
            'rule-max-length' => 64,
            'rule-message'    => __('Should be between 1 and 64 characters long.', 'peepso-core')
        ));


        $this->set_field(
            'site_emails_sender',
            __('Email sender', 'peepso-core'),
            'text'
        );

        // # Admin Email
        $this->args('validation', array('validate'));
        $this->args('data', array(
            'rule-min-length' => 1,
            'rule-max-length' => 64,
            'rule-message'    => __('Should be between 1 and 64 characters long.', 'peepso-core')
        ));

        $this->args('descript', __('To improve email delivery, do not use a generic address like @gmail.com - instead try using your own domain, like this: no-reply@example.com','peepso-core'));
        $this->set_field(
            'site_emails_admin_email',
            __('Admin Email', 'peepso-core'),
            'text'
        );


        $this->set_field(
            'emails_override_full_separator',
            __('Customize the entire email layout', 'peepso-core'),
            'separator'
        );

        $this->set_field(
            'emails_override_full_msg',
            __('Text, HTML and inline CSS only (no PHP or shortcodes). Leave empty for the default layout.','peepso-core')
            . '<br/><br/>'
            . sprintf(__('<a href="%s" target="_blank">Click here</a> after saving to test your changes.','peepso-core'), admin_url('admin-ajax.php?action=peepso_preview_email'))
            .'<br/><br/>'.
            __('Available variables: <br/>{email_contents} - email contents <font color="red">*</font><br/>{unsubscribeurl} - URL of the user notification preferences <font color="red">*</font><br/>{currentuserfullname} - full name of the recipient<br>{useremail} - email of the recipient<br/>{sitename} - the name of your site<br/>{siteurl} - the URL of your site<br/><br/><font color="red">*</font> required variable', 'peepso-core'),
            'message'
        );

        // # Full HTML
        $this->args('raw', TRUE);
        $this->args('validation', array('custom'));
        $this->args('validation_options',
            [
                [
                    'error_message' => __('Missing variable {emails_contents} or {unsubscribeurl}', 'peepso-core'),
                    'function' => array($this, 'check_emails_layout')
                ],
            ]
        );

        $this->set_field(
            'emails_override_entire_html',
            __('Override entire HTML', 'peepso-core'),
            'textarea'
        );

        // Build Group
        $this->set_group(
            'emails',
            __('Emails', 'peepso-core'),
            __('<div class="ps-notice__notifications">This section controls the settings and layout of all emails sent by PeepSo: notifications, registration, forgot password etc.<br/>It is important to understand that PeepSo is sending emails via your WordPress website. Your website is sending emails out via the server your website is running on. If you encounter issues with email deliverability, emails landing in SPAM and similar. Please be sure to read ', 'peepso-core')
            . sprintf(
                __('<a href="%s" target="_blank">this guide</a>.</div>', 'peepso-core'),
                'https://peepso.com/your-emails-go-to-spam-ensure-email-deliverability/'
            )
        );
    }

    public function check_emails_layout($value)
    {
        if (!empty($value)) {
            if (strpos($value, 'email_contents') === false || strpos($value, 'unsubscribeurl') === false) {
                return FALSE;
            }
        }

        return TRUE;
    }

}