<?php
/**
 * Plugin Name: Maple Calc
 * Description: A WordPress plugin for inserting various calculators as Gutenberg blocks and shortcodes.
 * Version: 1.0.1
 * Author: SSP Media
 * Author URI: https://sspmedia.ca/wordpress/
 */

// Exit if accessed directly
if (!defined('ABSPATH')) {
    exit;
}

// Define plugin constants
define('MAPLE_CALC_VERSION', '1.0.1');
define('MAPLE_CALC_PLUGIN_DIR', plugin_dir_path(__FILE__));
define('MAPLE_CALC_PLUGIN_URL', plugin_dir_url(__FILE__));

// Enqueue frontend scripts and styles
function maple_calc_frontend_enqueue_scripts() {
    wp_enqueue_style('maple-calc-frontend', MAPLE_CALC_PLUGIN_URL . 'assets/css/frontend.css', [], MAPLE_CALC_VERSION);
    wp_enqueue_script('maple-calc-frontend', MAPLE_CALC_PLUGIN_URL . 'assets/js/frontend.js', ['jquery', 'wp-element'], MAPLE_CALC_VERSION, true);
    wp_enqueue_script('chart-js', 'https://cdn.jsdelivr.net/npm/chart.js', [], '3.7.0', true);
}
add_action('wp_enqueue_scripts', 'maple_calc_frontend_enqueue_scripts');

// Enqueue block editor assets
function maple_calc_enqueue_block_editor_assets() {
    // Mortgage Calculator Block
    wp_enqueue_script(
        'maple-calc-mortgage-block',
        MAPLE_CALC_PLUGIN_URL . 'assets/js/mortgage-block.js',
        ['wp-blocks', 'wp-element', 'wp-components', 'wp-editor', 'wp-block-editor'],
        MAPLE_CALC_VERSION,
        true
    );

    // Data Center Calculator Block
    wp_enqueue_script(
        'maple-calc-datacenter-block',
        MAPLE_CALC_PLUGIN_URL . 'assets/js/datacenter-block.js',
        ['wp-blocks', 'wp-element', 'wp-components', 'wp-editor', 'wp-block-editor'],
        MAPLE_CALC_VERSION,
        true
    );

    // ROI Calculator Block
    wp_enqueue_script(
        'maple-calc-roi-block',
        MAPLE_CALC_PLUGIN_URL . 'assets/js/roi-block.js',
        ['wp-blocks', 'wp-element', 'wp-components', 'wp-editor', 'wp-block-editor'],
        MAPLE_CALC_VERSION,
        true
    );
}
add_action('enqueue_block_editor_assets', 'maple_calc_enqueue_block_editor_assets');

// Register Gutenberg blocks
function maple_calc_register_blocks() {
    // Register Mortgage Calculator Block
    register_block_type('maple/mortgage-calculator', [
        'editor_script' => 'maple-calc-mortgage-block',
        'render_callback' => 'maple_calc_render_mortgage_block',
        'attributes' => [
            'align' => [
                'type' => 'string',
            ],
        ],
        'supports' => [
            'align' => true,
        ],
    ]);

    // Register Data Center Calculator Block
    register_block_type('maple/datacenter-calculator', [
        'editor_script' => 'maple-calc-datacenter-block',
        'render_callback' => 'maple_calc_render_datacenter_block',
        'attributes' => [
            'align' => [
                'type' => 'string',
            ],
        ],
        'supports' => [
            'align' => true,
        ],
    ]);

    // Register ROI Calculator Block
    register_block_type('maple/roi-calculator', [
        'editor_script' => 'maple-calc-roi-block',
        'render_callback' => 'maple_calc_render_roi_block',
        'attributes' => [
            'align' => [
                'type' => 'string',
            ],
        ],
        'supports' => [
            'align' => true,
        ],
    ]);
}
add_action('init', 'maple_calc_register_blocks');

// Register shortcodes
function maple_calc_register_shortcodes() {
    add_shortcode('maple_mortgage_calculator', 'maple_calc_mortgage_shortcode');
    add_shortcode('maple_datacenter_calculator', 'maple_calc_datacenter_shortcode');
    add_shortcode('maple_roi_calculator', 'maple_calc_roi_shortcode');
}
add_action('init', 'maple_calc_register_shortcodes');

// Add admin menu
function maple_calc_admin_menu() {
    add_menu_page(
        'Maple Calc',
        'Maple Calc',
        'manage_options',
        'maple-calc',
        'maple_calc_admin_page',
        'dashicons-calculator',
        6
    );
}
add_action('admin_menu', 'maple_calc_admin_menu');

// Admin page content
function maple_calc_admin_page() {
    ?>
    <div class="wrap">
        <h1>Maple Calc</h1>
        <p>Welcome to the Maple Calc admin page. Use the shortcodes below to insert calculators into your posts or pages:</p>
        <ul>
            <li><code>[maple_mortgage_calculator]</code></li>
            <li><code>[maple_datacenter_calculator]</code></li>
            <li><code>[maple_roi_calculator]</code></li>
        </ul>
    </div>
    <?php
}

// Render callback for Mortgage Calculator Block
function maple_calc_render_mortgage_block($attributes) {
    ob_start();
    include MAPLE_CALC_PLUGIN_DIR . 'templates/mortgage-calculator.php';
    return ob_get_clean();
}

// Render callback for Data Center Calculator Block
function maple_calc_render_datacenter_block($attributes) {
    ob_start();
    include MAPLE_CALC_PLUGIN_DIR . 'templates/datacenter-calculator.php';
    return ob_get_clean();
}

// Render callback for ROI Calculator Block
function maple_calc_render_roi_block($attributes) {
    ob_start();
    include MAPLE_CALC_PLUGIN_DIR . 'templates/roi-calculator.php';
    return ob_get_clean();
}

// Shortcode callback for Mortgage Calculator
function maple_calc_mortgage_shortcode($atts) {
    ob_start();
    include MAPLE_CALC_PLUGIN_DIR . 'templates/mortgage-calculator.php';
    return ob_get_clean();
}

// Shortcode callback for Data Center Calculator
function maple_calc_datacenter_shortcode($atts) {
    ob_start();
    include MAPLE_CALC_PLUGIN_DIR . 'templates/datacenter-calculator.php';
    return ob_get_clean();
}

// Shortcode callback for ROI Calculator
function maple_calc_roi_shortcode($atts) {
    ob_start();
    include MAPLE_CALC_PLUGIN_DIR . 'templates/roi-calculator.php';
    return ob_get_clean();
}

// Mortgage Calculator Logic
function maple_calculate_mortgage($principal, $interest_rate, $term_years) {
    $monthly_interest_rate = $interest_rate / 100 / 12;
    $term_months = $term_years * 12;

    $monthly_payment = $principal * ($monthly_interest_rate * pow(1 + $monthly_interest_rate, $term_months)) / (pow(1 + $monthly_interest_rate, $term_months) - 1);
    $total_payment = $monthly_payment * $term_months;
    $total_interest = $total_payment - $principal;

    return [
        'monthly_payment' => round($monthly_payment, 2),
        'total_payment' => round($total_payment, 2),
        'total_interest' => round($total_interest, 2),
    ];
}

// Data Center Costs Calculator Logic
function maple_calculate_datacenter($power_kw, $cost_per_kwh, $rack_space, $cooling_factor = 1.2) {
    $power_cost_per_hour = $power_kw * $cost_per_kwh;
    $power_cost_per_month = $power_cost_per_hour * 24 * 30;

    $cooling_cost_per_month = $power_cost_per_month * $cooling_factor;
    $rack_cost_per_month = $rack_space * 100;
    $total_monthly_cost = $power_cost_per_month + $cooling_cost_per_month + $rack_cost_per_month;
    $total_annual_cost = $total_monthly_cost * 12;

    return [
        'power_cost_per_month' => round($power_cost_per_month, 2),
        'cooling_cost_per_month' => round($cooling_cost_per_month, 2),
        'rack_cost_per_month' => round($rack_cost_per_month, 2),
        'total_monthly_cost' => round($total_monthly_cost, 2),
        'total_annual_cost' => round($total_annual_cost, 2),
    ];
}

// ROI Calculator Logic
function maple_calculate_roi($initial_investment, $annual_return_rate, $time_years) {
    $final_value = $initial_investment * pow(1 + $annual_return_rate / 100, $time_years);
    $net_profit = $final_value - $initial_investment;
    $roi_percentage = ($net_profit / $initial_investment) * 100;

    return [
        'final_value' => round($final_value, 2),
        'net_profit' => round($net_profit, 2),
        'roi_percentage' => round($roi_percentage, 2),
    ];
}