<?php

if (!defined('ABSPATH')) {
    exit;
}

class EVQRA_Event_Settings {

    public function __construct() {
        add_action('admin_menu', [$this, 'add_settings_menu']);
        add_action('admin_init', [$this, 'register_settings']);
    }

    public function add_settings_menu() {
        add_options_page(
            __('Event Settings', 'eventqora'),
            __('Event Settings', 'eventqora'),
            'manage_options',
            'eventqora-event-settings',
            [$this, 'render_settings_page']
        );
    }

    public function sanitize_event_settings($value) {
        if (!is_array($value)) {
            return [];
        }

        $allowed_views = ['month', 'list', 'day', 'week', 'photo', 'map', 'summary'];
        return [
            'evqra_date_format' => isset($value['evqra_date_format']) ? sanitize_text_field($value['evqra_date_format']) : 'Y-m-d',
            'evqra_timezone' => isset($value['evqra_timezone']) && in_array($value['evqra_timezone'], timezone_identifiers_list(), true) ? $value['evqra_timezone'] : wp_timezone_string(),
            'evqra_default_view' => isset($value['evqra_default_view']) && in_array($value['evqra_default_view'], $allowed_views, true) ? $value['evqra_default_view'] : 'month',
            'evqra_events_per_page' => isset($value['evqra_events_per_page']) ? max(1, min(100, absint($value['evqra_events_per_page']))) : 10,
        ];
    }
    public function sanitize_event_email_settings($value) {
        if (!is_array($value)) {
            return [];
        }

        $allowed_keys = [
            'user_registration',
            'booking_pending',
            'booking_confirmation',
            'booking_cancellation',
            'reset_password',
            'booking_refund',
            'frontend_submission',
            'frontend_approval',
        ];

        $sanitized = [];
        foreach ($allowed_keys as $key) {
            $item = isset($value[$key]) && is_array($value[$key]) ? $value[$key] : [];
            $sanitized[$key] = [
                'enabled' => !empty($item['enabled']) ? '1' : '0',
                'subject' => isset($item['subject']) ? sanitize_text_field($item['subject']) : '',
                'content' => isset($item['content']) ? sanitize_textarea_field($item['content']) : '',
            ];
        }

        return $sanitized;
    }

    public function register_settings() {
        register_setting('evqra_event_settings_group', 'evqra_event_settings', ['type' => 'array', 'sanitize_callback' => [$this, 'sanitize_event_settings']]);

        add_settings_section('evqra_event_main', __('Main Settings', 'eventqora'), null, 'eventqora-event-settings');

        add_settings_field(
            'evqra_date_format',
            __('Date Format', 'eventqora'),
            [$this, 'render_date_format'],
            'eventqora-event-settings',
            'evqra_event_main'
        );

        add_settings_field(
            'evqra_timezone',
            __('Time Zone', 'eventqora'),
            [$this, 'render_timezone'],
            'eventqora-event-settings',
            'evqra_event_main'
        );

        add_settings_field(
            'evqra_default_view',
            __('Default View', 'eventqora'),
            [$this, 'render_default_view'],
            'eventqora-event-settings',
            'evqra_event_main'
        );

        add_settings_field(
            'evqra_events_per_page',
            __('Events Per Page', 'eventqora'),
            [$this, 'render_events_per_page'],
            'eventqora-event-settings',
            'evqra_event_main'
        );

        // Register individual email options under 'evqra_event_email_settings'
        register_setting('evqra_event_settings_group', 'evqra_event_email_settings', ['type' => 'array', 'sanitize_callback' => [$this, 'sanitize_event_email_settings']]);

        add_settings_section('evqra_event_email', __('Email Notifications', 'eventqora'), null, 'eventqora-event-settings');

        // Email types
        $email_keys = [
            'user_registration'    => __('User Registration Email', 'eventqora'),
            'booking_pending'      => __('Booking Pending Email', 'eventqora'),
            'booking_confirmation' => __('Booking Confirmation Email', 'eventqora'),
            'booking_cancellation' => __('Booking Cancellation Email', 'eventqora'),
            'reset_password'       => __('Reset Password Email', 'eventqora'),
            'booking_refund'       => __('Booking Refund Email', 'eventqora'),
            'frontend_submission'  => __('Frontend Event Submission Email', 'eventqora'),
            'frontend_approval'    => __('Frontend Submission Approval Email', 'eventqora'),
        ];

        foreach ($email_keys as $key => $label) {
            add_settings_field(
                'email_' . $key,
                $label,
                [$this, 'render_email_field'],
                'eventqora-event-settings',
                'evqra_event_email',
                ['key' => $key]
            );
        }

        // Global toggles
        add_settings_field(
            'disable_admin_emails',
            __('Disable Admin Emails', 'eventqora'),
            [$this, 'render_disable_admin_emails'],
            'eventqora-event-settings',
            'evqra_event_email'
        );

        add_settings_field(
            'disable_frontend_emails',
            __('Disable Frontend Emails', 'eventqora'),
            [$this, 'render_disable_frontend_emails'],
            'eventqora-event-settings',
            'evqra_event_email'
        );

    }

    public function render_settings_page() {
        ?>
        <div class="wrap">
            <h1><?php esc_html_e('EventQora Settings', 'eventqora'); ?></h1>
            <form method="post" action="options.php">
                <?php
                settings_fields('evqra_event_settings_group');
                do_settings_sections('eventqora-event-settings');
                submit_button();
                ?>
            </form>
        </div>
        <?php
    }

    public function render_date_format() {
        $options = get_option('evqra_event_settings');
        ?>
        <input type="text" name="evqra_event_settings[evqra_date_format]" value="<?php echo esc_attr($options['evqra_date_format'] ?? 'Y-m-d'); ?>" />
        <p class="description"><?php esc_html_e('Use PHP date format (e.g., Y-m-d, d/m/Y)', 'eventqora'); ?></p>
        <?php
    }

    public function render_timezone() {
        $options = get_option('evqra_event_settings');
        $current = $options['evqra_timezone'] ?? get_option('timezone_string');
        ?>
        <select name="evqra_event_settings[evqra_timezone]">
            <?php
            foreach (timezone_identifiers_list() as $zone) {
                printf('<option value="%s"%s>%s</option>', esc_attr($zone), selected($current, $zone, false), esc_html($zone));
            }
            ?>
        </select>
        <?php
    }

    public function render_default_view() {
        $options = get_option('evqra_event_settings');
        $view = $options['evqra_default_view'] ?? 'month';
        ?>
        <select name="evqra_event_settings[evqra_default_view]">
            <option value="month" <?php selected($view, 'month'); ?>><?php esc_html_e('Month View', 'eventqora'); ?></option>
            <option value="list" <?php selected($view, 'list'); ?>><?php esc_html_e('List View', 'eventqora'); ?></option>
            <option value="day" <?php selected($view, 'day'); ?>><?php esc_html_e('Day View', 'eventqora'); ?></option>
            <option value="week" <?php selected($view, 'week'); ?>><?php esc_html_e('Week View', 'eventqora'); ?></option>
            <option value="photo" <?php selected($view, 'photo'); ?>><?php esc_html_e('Photo View', 'eventqora'); ?></option>
            <option value="map" <?php selected($view, 'map'); ?>><?php esc_html_e('Map View', 'eventqora'); ?></option>
            <option value="summary" <?php selected($view, 'summary'); ?>><?php esc_html_e('Summary View', 'eventqora'); ?></option>
        </select>
        <?php
    }

    public function render_events_per_page() {
        $options = get_option('evqra_event_settings');
        ?>
        <input type="number" name="evqra_event_settings[evqra_events_per_page]" value="<?php echo esc_attr($options['evqra_events_per_page'] ?? 10); ?>" min="1" max="100" />
        <?php
    }

    public function render_email_field($args) {
        $options = get_option('evqra_event_email_settings', []);
        $key = $args['key'];
        $data = $options[$key] ?? ['enabled' => '', 'subject' => '', 'content' => ''];
        ?>
        <label>
            <input type="checkbox" name="evqra_event_email_settings[<?php echo esc_attr($key); ?>][enabled]" value="1" <?php checked($data['enabled'] ?? '', '1'); ?> />
            <?php esc_html_e('Enable', 'eventqora'); ?>
        </label>
        <br>
        <input type="text" class="regular-text" name="evqra_event_email_settings[<?php echo esc_attr($key); ?>][subject]" placeholder="<?php esc_html_e('Email Subject', 'eventqora'); ?>" value="<?php echo esc_attr($data['subject']); ?>" />
        <br>
        <textarea rows="4" cols="60" name="evqra_event_email_settings[<?php echo esc_attr($key); ?>][content]"><?php echo esc_textarea($data['content']); ?></textarea>
        <p class="description"><?php esc_html_e('Placeholders: {user_name}, {event_name}, {booking_id}, etc.', 'eventqora'); ?></p>
        <?php
    }

    public function render_disable_admin_emails() {
        $value = get_option('evqra_disable_admin_emails', 0);
        ?>
        <label>
            <input type="checkbox" name="evqra_disable_admin_emails" value="1" <?php checked($value, 1); ?> />
            <?php esc_html_e('Disable all admin emails', 'eventqora'); ?>
        </label>
        <?php
    }

    public function render_disable_frontend_emails() {
        $value = get_option('evqra_disable_frontend_emails', 0);
        ?>
        <label>
            <input type="checkbox" name="evqra_disable_frontend_emails" value="1" <?php checked($value, 1); ?> />
            <?php esc_html_e('Disable all frontend emails', 'eventqora'); ?>
        </label>
        <?php
    }
}

new EVQRA_Event_Settings();