<?php
/**
 * Plugin Name: Advanced Contact Button
 * Description: A plugin to add floating contact buttons (Call, Email, WhatsApp, WeChat) with customizable styles and positions.
 * Version: 1.0.2
 * Author: Roy
 * Author URI: https://wpenjoy.com
 * Text Domain: advanced-contact-button
 * Requires at least: 5.8
 * Tested up to: 6.8
 * Requires PHP: 7.4
 * License: GPL v2 or later
 * License URI: https://www.gnu.org/licenses/gpl-2.0.html
 */

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

class ADVCNTBTN_Main {
    private static $instance = null;

    public static function get_instance() {
        if (null === self::$instance) {
            self::$instance = new self();
        }
        return self::$instance;
    }

    private function __construct() {
        add_action('admin_menu', array($this, 'add_settings_page'));
        add_action('admin_init', array($this, 'register_settings'));
        add_action('admin_enqueue_scripts', array($this, 'enqueue_admin_assets'));
        add_action('wp_enqueue_scripts', array($this, 'enqueue_frontend_assets'));
        add_action('wp_footer', array($this, 'advcntbtn_render_contact_buttons'));
    }

    public function add_settings_page() {
        add_options_page(
            __('Advanced Contact Button Settings', 'advanced-contact-button'),
            __('Advanced Contact Button', 'advanced-contact-button'),
            'manage_options',
            'advanced-contact-button',
            array($this, 'advcntbtn_render_settings_page')
        );
    }

    public function register_settings() {
        register_setting('advcntbtn_settings', 'advcntbtn_settings', array(
            'sanitize_callback' => array($this, 'sanitize_settings')
        ));

        add_settings_section(
            'advcntbtn_general_section',
            __('General Settings', 'advanced-contact-button'),
            null,
            'advanced-contact-button'
        );

        // Position Settings
        add_settings_field(
            'advcntbtn_position',
            __('Icons Position', 'advanced-contact-button'),
            array($this, 'advcntbtn_render_position_field'),
            'advanced-contact-button',
            'advcntbtn_general_section'
        );

        // Style Settings
        add_settings_field(
            'advcntbtn_style',
            __('Icon Style', 'advanced-contact-button'),
            array($this, 'advcntbtn_render_style_field'),
            'advanced-contact-button',
            'advcntbtn_general_section'
        );

        // Icon Size Settings
        add_settings_field(
            'advcntbtn_icon_size',
            __('Icon Size', 'advanced-contact-button'),
            array($this, 'advcntbtn_render_icon_size_field'),
            'advanced-contact-button',
            'advcntbtn_general_section'
        );

        // Text Size Settings
        add_settings_field(
            'advcntbtn_text_size',
            __('Text Size', 'advanced-contact-button'),
            array($this, 'advcntbtn_render_text_size_field'),
            'advanced-contact-button',
            'advcntbtn_general_section'
        );

        // Call Settings
        add_settings_field(
            'advcntbtn_call',
            __('Call Settings', 'advanced-contact-button'),
            array($this, 'advcntbtn_render_call_fields'),
            'advanced-contact-button',
            'advcntbtn_general_section'
        );

        // Email Settings
        add_settings_field(
            'advcntbtn_email',
            __('Email Settings', 'advanced-contact-button'),
            array($this, 'advcntbtn_render_email_fields'),
            'advanced-contact-button',
            'advcntbtn_general_section'
        );

        // WhatsApp Settings
        add_settings_field(
            'advcntbtn_whatsapp',
            __('WhatsApp Settings', 'advanced-contact-button'),
            array($this, 'advcntbtn_render_whatsapp_fields'),
            'advanced-contact-button',
            'advcntbtn_general_section'
        );

        // WeChat Settings
        add_settings_field(
            'advcntbtn_wechat',
            __('WeChat Settings', 'advanced-contact-button'),
            array($this, 'advcntbtn_render_wechat_fields'),
            'advanced-contact-button',
            'advcntbtn_general_section'
        );
    }

    public function advcntbtn_render_settings_page() {
        if (!current_user_can('manage_options')) {
            return;
        }
        ?>
        <div class="wrap">
            <h1><?php echo esc_html(get_admin_page_title()); ?></h1>
            <form action="options.php" method="post">
                <?php
                settings_fields('advcntbtn_settings');
                do_settings_sections('advanced-contact-button');
                submit_button();
                ?>
            </form>
        </div>
        <?php
    }

    public function advcntbtn_render_position_field() {
        $options = get_option('advcntbtn_settings');
        $position = isset($options['position']) ? $options['position'] : 'right-bottom';
        ?>
        <select name="advcntbtn_settings[position]">
            <option value="right-bottom" <?php selected($position, 'right-bottom'); ?>>
                <?php esc_html_e('Right Bottom', 'advanced-contact-button'); ?>
            </option>
            <option value="right-middle" <?php selected($position, 'right-middle'); ?>>
                <?php esc_html_e('Right Middle', 'advanced-contact-button'); ?>
            </option>
        </select>
        <?php
    }

    public function advcntbtn_render_style_field() {
        $options = get_option('advcntbtn_settings');
        $style = isset($options['style']) ? $options['style'] : 'icon-only';
        ?>
        <select name="advcntbtn_settings[style]">
            <option value="icon-only" <?php selected($style, 'icon-only'); ?>>
                <?php esc_html_e('Icon Only', 'advanced-contact-button'); ?>
            </option>
            <option value="icon-text" <?php selected($style, 'icon-text'); ?>>
                <?php esc_html_e('Icon with Text', 'advanced-contact-button'); ?>
            </option>
        </select>
        <?php
    }

    public function advcntbtn_render_icon_size_field() {
        $options = get_option('advcntbtn_settings');
        $icon_size = isset($options['icon_size']) ? $options['icon_size'] : '24';
        ?>
        <input type="number" name="advcntbtn_settings[icon_size]" value="<?php echo esc_attr($icon_size); ?>" min="16" max="48" step="1">
        <span class="description"><?php esc_html_e('px (Default: 24px)', 'advanced-contact-button'); ?></span>
        <?php
    }

    public function advcntbtn_render_text_size_field() {
        $options = get_option('advcntbtn_settings');
        $text_size = isset($options['text_size']) ? $options['text_size'] : '11';
        ?>
        <input type="number" name="advcntbtn_settings[text_size]" value="<?php echo esc_attr($text_size); ?>" min="8" max="24" step="1">
        <span class="description"><?php esc_html_e('px (Default: 11px)', 'advanced-contact-button'); ?></span>
        <?php
    }

    public function advcntbtn_render_call_fields() {
        $options = get_option('advcntbtn_settings');
        ?>
        <p>
            <label>
                <input type="checkbox" name="advcntbtn_settings[call_enabled]" value="1" 
                    <?php checked(isset($options['call_enabled']), 1); ?>>
                <?php esc_html_e('Enable Call Button', 'advanced-contact-button'); ?>
            </label>
        </p>
        <p>
            <input type="tel" name="advcntbtn_settings[call_number]" value="<?php 
                echo esc_attr(isset($options['call_number']) ? $options['call_number'] : ''); ?>" 
                placeholder="<?php esc_attr_e('Enter phone number', 'advanced-contact-button'); ?>">
                <span class="description"><?php esc_html_e('Example: 12345678901', 'advanced-contact-button'); ?></span>
        </p>
        <p>
            <input type="text" name="advcntbtn_settings[call_text]" value="<?php 
                echo esc_attr(isset($options['call_text']) ? $options['call_text'] : 'Call Us'); ?>" 
                placeholder="<?php esc_attr_e('Icon text', 'advanced-contact-button'); ?>">
                <span class="description"><?php esc_html_e('Example: Call Us', 'advanced-contact-button'); ?></span>
        </p>
        <p>
            <label><?php esc_html_e('Icon Color', 'advanced-contact-button'); ?></label><br>
            <input type="text" name="advcntbtn_settings[call_color]" value="<?php 
                echo esc_attr(isset($options['call_color']) ? $options['call_color'] : '#4CAF50'); ?>" 
                class="color-picker" data-default-color="#4CAF50">
        </p>
        <?php
    }

    public function advcntbtn_render_email_fields() {
        $options = get_option('advcntbtn_settings');
        ?>
        <p>
            <label>
                <input type="checkbox" name="advcntbtn_settings[email_enabled]" value="1" 
                    <?php checked(isset($options['email_enabled']), 1); ?>>
                <?php esc_html_e('Enable Email Button', 'advanced-contact-button'); ?>
            </label>
        </p>
        <p>
            <input type="email" name="advcntbtn_settings[email_address]" value="<?php 
                echo esc_attr(isset($options['email_address']) ? $options['email_address'] : ''); ?>" 
                placeholder="<?php esc_attr_e('Enter email address', 'advanced-contact-button'); ?>">
                <span class="description"><?php esc_html_e('Example: info@example.com', 'advanced-contact-button'); ?></span>
        </p>
        <p>
            <input type="text" name="advcntbtn_settings[email_text]" value="<?php 
                echo esc_attr(isset($options['email_text']) ? $options['email_text'] : 'Email Us'); ?>" 
                placeholder="<?php esc_attr_e('Icon text', 'advanced-contact-button'); ?>">
                <span class="description"><?php esc_html_e('Example: Email Us', 'advanced-contact-button'); ?></span>
        </p>
        <p>
            <label><?php esc_html_e('Icon Color', 'advanced-contact-button'); ?></label><br>
            <input type="text" name="advcntbtn_settings[email_color]" value="<?php 
                echo esc_attr(isset($options['email_color']) ? $options['email_color'] : '#2196F3'); ?>" 
                class="color-picker" data-default-color="#2196F3">
        </p>
        <?php
    }

    public function advcntbtn_render_whatsapp_fields() {
        $options = get_option('advcntbtn_settings');
        ?>
        <p>
            <label>
                <input type="checkbox" name="advcntbtn_settings[whatsapp_enabled]" value="1" 
                    <?php checked(isset($options['whatsapp_enabled']), 1); ?>>
                <?php esc_html_e('Enable WhatsApp Button', 'advanced-contact-button'); ?>
            </label>
        </p>
        <p>
            <input type="text" name="advcntbtn_settings[whatsapp_number]" value="<?php 
                echo esc_attr(isset($options['whatsapp_number']) ? $options['whatsapp_number'] : ''); ?>" 
                placeholder="<?php esc_attr_e('WhatsApp Number', 'advanced-contact-button'); ?>">
                <span class="description"><?php esc_html_e('Enter numbers only without + sign (e.g., 12345678901)', 'advanced-contact-button'); ?></span>
        </p>
        <p>
            <input type="text" name="advcntbtn_settings[whatsapp_text]" value="<?php 
                echo esc_attr(isset($options['whatsapp_text']) ? $options['whatsapp_text'] : 'WhatsApp'); ?>" 
                placeholder="<?php esc_attr_e('Icon text', 'advanced-contact-button'); ?>">
                <span class="description"><?php esc_html_e('Example: WhatsApp', 'advanced-contact-button'); ?></span>
        </p>
        <p>
            <label><?php esc_html_e('Icon Color', 'advanced-contact-button'); ?></label><br>
            <input type="text" name="advcntbtn_settings[whatsapp_color]" value="<?php 
                echo esc_attr(isset($options['whatsapp_color']) ? $options['whatsapp_color'] : '#25D366'); ?>" 
                class="color-picker" data-default-color="#25D366">
        </p>
        <?php
    }

    public function advcntbtn_render_wechat_fields() {
        $options = get_option('advcntbtn_settings');
        ?>
        <p>
            <label>
                <input type="checkbox" name="advcntbtn_settings[wechat_enabled]" value="1" 
                    <?php checked(isset($options['wechat_enabled']), 1); ?>>
                <?php esc_html_e('Enable WeChat Button', 'advanced-contact-button'); ?>
            </label>
        </p>
        <p>
            <input type="hidden" name="advcntbtn_settings[wechat_qrcode]" id="wechat_qrcode_url" value="<?php 
                echo esc_attr(isset($options['wechat_qrcode']) ? $options['wechat_qrcode'] : ''); ?>">
            <button type="button" class="button" id="wechat_qrcode_button">
                <?php esc_html_e('Upload QR Code', 'advanced-contact-button'); ?>
            </button>
            <div id="wechat_qrcode_preview" style="margin-top: 10px;">
                <?php if (isset($options['wechat_qrcode']) && !empty($options['wechat_qrcode'])) : ?>
                    <img src="<?php echo esc_url($options['wechat_qrcode']); ?>" style="max-width: 200px;">
                <?php endif; ?>
            </div>
        </p>
        <p>
            <input type="text" name="advcntbtn_settings[wechat_text]" value="<?php 
                echo esc_attr(isset($options['wechat_text']) ? $options['wechat_text'] : 'WeChat'); ?>" 
                placeholder="<?php esc_attr_e('Icon text', 'advanced-contact-button'); ?>">
                <span class="description"><?php esc_html_e('Example: WeChat', 'advanced-contact-button'); ?></span>
        </p>
        <p>
            <label><?php esc_html_e('Icon Color', 'advanced-contact-button'); ?></label><br>
            <input type="text" name="advcntbtn_settings[wechat_color]" value="<?php 
                echo esc_attr(isset($options['wechat_color']) ? $options['wechat_color'] : '#7BB32E'); ?>" 
                class="color-picker" data-default-color="#7BB32E">
        </p>
        <?php
    }

    public function enqueue_admin_assets($hook) {
        if ('settings_page_advanced-contact-button' !== $hook) {
            return;
        }

        wp_enqueue_media();
        wp_enqueue_style('wp-color-picker');
        wp_enqueue_script('wp-color-picker');
        wp_enqueue_script(
            'advcntbtn-admin',
            plugins_url('js/admin.js', __FILE__),
            array('jquery', 'wp-color-picker'),
            '1.0.0',
            true
        );

        wp_add_inline_script('advcntbtn-admin', '
            jQuery(document).ready(function($) {
                $(".color-picker").wpColorPicker();
            });
        ');
    }

    public function sanitize_settings($input) {
        $sanitized = array();
        
        // Sanitize text fields
        $text_fields = array('call_text', 'email_text', 'whatsapp_text', 'wechat_text');
        foreach ($text_fields as $field) {
            if (isset($input[$field])) {
                $sanitized[$field] = sanitize_text_field($input[$field]);
            }
        }

        // Sanitize URLs and numbers
        if (isset($input['call_number'])) {
            $sanitized['call_number'] = sanitize_text_field($input['call_number']);
        }
        if (isset($input['email_address'])) {
            $sanitized['email_address'] = sanitize_email($input['email_address']);
        }
        if (isset($input['whatsapp_number'])) {
            $sanitized['whatsapp_number'] = preg_replace('/[^0-9]/', '', $input['whatsapp_number']);
        }
        if (isset($input['wechat_qrcode'])) {
            $sanitized['wechat_qrcode'] = esc_url_raw($input['wechat_qrcode']);
        }

        // Sanitize colors
        $color_fields = array('call_color', 'email_color', 'whatsapp_color', 'wechat_color');
        foreach ($color_fields as $field) {
            if (isset($input[$field])) {
                $sanitized[$field] = sanitize_hex_color($input[$field]);
            }
        }

        // Sanitize numbers
        if (isset($input['icon_size'])) {
            $sanitized['icon_size'] = absint($input['icon_size']);
        }
        if (isset($input['text_size'])) {
            $sanitized['text_size'] = absint($input['text_size']);
        }

        // Sanitize checkboxes
        $checkbox_fields = array('call_enabled', 'email_enabled', 'whatsapp_enabled', 'wechat_enabled');
        foreach ($checkbox_fields as $field) {
            $sanitized[$field] = isset($input[$field]) ? 1 : 0;
        }

        // Sanitize select fields
        if (isset($input['position'])) {
            $sanitized['position'] = in_array($input['position'], array('right-bottom', 'right-middle')) ? $input['position'] : 'right-bottom';
        }
        if (isset($input['style'])) {
            $sanitized['style'] = in_array($input['style'], array('icon-only', 'icon-text')) ? $input['style'] : 'icon-only';
        }

        return $sanitized;
    }

    public function enqueue_frontend_assets() {
        // Include Font Awesome from local files
        wp_enqueue_style('advcntbtn-font-awesome-face', plugin_dir_url(__FILE__) . 'assets/fontawesome/css/font-face.min.css');
        wp_enqueue_style('advcntbtn-font-awesome', plugin_dir_url(__FILE__) . 'assets/fontawesome/css/all.min.css', array('advcntbtn-font-awesome-face'));
        wp_enqueue_style(
            'advcntbtn-style',
            plugins_url('css/style.css', __FILE__),
            array(),
            '1.0.0'
        );
        
        // Add dynamic styles through proper WordPress API
        $options = get_option('advcntbtn_settings');
        if (!empty($options)) {
            $icon_size = isset($options['icon_size']) ? intval($options['icon_size']) : 24;
            $text_size = isset($options['text_size']) ? intval($options['text_size']) : 11;
            
            $dynamic_css = ""
                . ".acb-icon { font-size: {$icon_size}px !important; }\n"
                . ".icon-text .acb-button span { font-size: {$text_size}px !important; }\n";
                
            // Add icon colors
            if (isset($options['call_color'])) {
                $dynamic_css .= ".acb-call .acb-icon { color: " . esc_attr($options['call_color']) . " !important; }\n";
            }
            if (isset($options['email_color'])) {
                $dynamic_css .= ".acb-email .acb-icon { color: " . esc_attr($options['email_color']) . " !important; }\n";
            }
            if (isset($options['whatsapp_color'])) {
                $dynamic_css .= ".acb-whatsapp .acb-icon { color: " . esc_attr($options['whatsapp_color']) . " !important; }\n";
            }
            if (isset($options['wechat_color'])) {
                $dynamic_css .= ".acb-wechat .acb-icon { color: " . esc_attr($options['wechat_color']) . " !important; }\n";
            }
            
            wp_add_inline_style('advcntbtn-style', $dynamic_css);
        }
    }

    public function advcntbtn_render_contact_buttons() {
        $options = get_option('advcntbtn_settings');
        if (empty($options)) {
            return;
        }

        $position = isset($options['position']) ? $options['position'] : 'right-bottom';
        $style = isset($options['style']) ? $options['style'] : 'icon-only';
        $icon_size = isset($options['icon_size']) ? intval($options['icon_size']) : 24;
        $text_size = isset($options['text_size']) ? intval($options['text_size']) : 11;

        // Dynamic styles are now properly added via wp_add_inline_style in enqueue_frontend_assets()

        echo '<div class="acb-container ' . esc_attr($position) . ' ' . esc_attr($style) . '">';

        // Call Button
        if (isset($options['call_enabled']) && !empty($options['call_number'])) {
            echo '<a href="tel:' . esc_attr($options['call_number']) . '" class="acb-button acb-call" data-tooltip="' . esc_attr($options['call_text']) . '">';
            echo '<i class="acb-icon fa-solid fa-phone"></i>';
            if ($style === 'icon-text') {
                echo '<span>' . esc_html($options['call_text']) . '</span>';
            }
            echo '</a>';
        }

        // Email Button
        if (isset($options['email_enabled']) && !empty($options['email_address'])) {
            echo '<a href="mailto:' . esc_attr($options['email_address']) . '" class="acb-button acb-email" data-tooltip="' . esc_attr($options['email_text']) . '">';
            echo '<i class="acb-icon fa-solid fa-envelope"></i>';
            if ($style === 'icon-text') {
                echo '<span>' . esc_html($options['email_text']) . '</span>';
            }
            echo '</a>';
        }

        // WhatsApp Button
        if (isset($options['whatsapp_enabled']) && !empty($options['whatsapp_number'])) {
            $whatsapp_number = preg_replace('/[^0-9]/', '', $options['whatsapp_number']);
            echo '<a href="https://wa.me/' . esc_attr($whatsapp_number) . '" target="_blank" class="acb-button acb-whatsapp" data-tooltip="' . esc_attr($options['whatsapp_text']) . '">';
            echo '<i class="acb-icon fa-brands fa-whatsapp"></i>';
            if ($style === 'icon-text') {
                echo '<span>' . esc_html($options['whatsapp_text']) . '</span>';
            }
            echo '</a>';
        }

        // WeChat Button
        if (isset($options['wechat_enabled']) && !empty($options['wechat_qrcode'])) {
            echo '<div class="acb-button acb-wechat" data-tooltip="' . esc_attr($options['wechat_text']) . '">';
            echo '<i class="acb-icon fa-brands fa-weixin"></i>';
            if ($style === 'icon-text') {
                echo '<span>' . esc_html($options['wechat_text']) . '</span>';
            }
            echo '<div class="acb-wechat-qrcode">';
            echo '<img src="' . esc_url($options['wechat_qrcode']) . '" alt="WeChat QR Code">';
            echo '</div>';
            echo '</div>';
        }

        echo '</div>';
    }
}

ADVCNTBTN_Main::get_instance();