<?php

// Simple configuration loader
$configJsonPath = __DIR__ . '/../../config.json';
$configExamplePath = __DIR__ . '/../../config.json.example';

// Auto-create config.json if it does not exist
if (!file_exists($configJsonPath)) {
    if (file_exists($configExamplePath)) {
        @copy($configExamplePath, $configJsonPath);
    } else {
        $defaultConfig = [
            'site_title' => 'CodePress',
            'content_dir' => 'content',
            'active_theme' => 'default',
            'default_page' => 'auto',
            'language' => [
                'default' => 'nl',
                'available' => ['nl', 'en']
            ],
            'seo' => [
                'description' => 'CodePress CMS - Lightweight file-based content management system',
                'keywords' => 'cms, php, content management, file-based'
            ],
            'author' => [
                'name' => 'E. Noorlander',
                'website' => 'noorlander.info'
            ],
            'show_version' => true,
            'enabled_plugins' => ['MQTTTracker', 'HTMLBlock'],
            'features' => [
                'auto_link_pages' => true,
                'search_enabled' => true,
                'breadcrumbs_enabled' => true
            ],
            'security' => [
                'block_ai_bots' => true,
                'block_scrapers' => true,
                'block_search_engines' => false,
                'block_empty_user_agent' => true,
                'rate_limit_enabled' => true,
                'rate_limit_max' => 60,
                'rate_limit_window' => 60,
                'custom_blocked_agents' => [],
                'blocked_ips' => [],
                'allowed_ips' => []
            ],
            'analytics' => [
                'enabled' => true,
                'anonymize_ip' => false,
                'geoip_provider' => 'local',
                'geoip_mmdb_path' => '',
                'geoip_api_url' => '',
                'geoip_api_key' => '',
                'retention_days' => 400,
                'excluded_ips' => [
                    '192.168.0.0/16',
                    '10.0.0.0/8',
                    '172.16.0.0/12',
                    '127.0.0.1',
                    '::1'
                ]
            ],
            'logging' => [
                'enabled' => true,
                'driver' => 'sqlite',
                'syslog_host' => '',
                'syslog_port' => 514,
                'syslog_facility' => 'local0',
                'syslog_ident' => 'codepress',
                'events' => [
                    'admin' => true,
                    'requests' => true,
                    'errors' => true,
                    'security' => true,
                    'content' => true,
                    'system' => true
                ]
            ]
        ];
        @file_put_contents($configJsonPath, json_encode($defaultConfig, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE));
    }
}

if (file_exists($configJsonPath)) {
    $jsonContent = file_get_contents($configJsonPath);
    $config = json_decode($jsonContent, true);

    if (json_last_error() === JSON_ERROR_NONE && is_array($config)) {
        // Merge defaults for sections that may be missing in existing installs
        $sectionDefaults = [
            'security' => [
                'block_ai_bots' => true,
                'block_scrapers' => true,
                'block_search_engines' => false,
                'block_empty_user_agent' => true,
                'rate_limit_enabled' => true,
                'rate_limit_max' => 60,
                'rate_limit_window' => 60,
                'custom_blocked_agents' => [],
                'blocked_ips' => [],
                'allowed_ips' => [],
            ],
            'analytics' => [
                'enabled' => true,
                'anonymize_ip' => false,
                'geoip_provider' => 'local',
                'geoip_mmdb_path' => '',
                'geoip_api_url' => '',
                'geoip_api_key' => '',
                'retention_days' => 400,
                'excluded_ips' => [
                    '192.168.0.0/16',
                    '10.0.0.0/8',
                    '172.16.0.0/12',
                    '127.0.0.1',
                    '::1'
                ],
            ],
            'logging' => [
                'enabled' => true,
                'driver' => 'sqlite',
                'syslog_host' => '',
                'syslog_port' => 514,
                'syslog_facility' => 'local0',
                'syslog_ident' => 'codepress',
                'events' => [
                    'admin' => true,
                    'requests' => true,
                    'errors' => true,
                    'security' => true,
                    'content' => true,
                    'system' => true
                ],
            ],
        ];
        foreach ($sectionDefaults as $section => $defaults) {
            $config[$section] = array_merge($defaults, is_array($config[$section] ?? null) ? $config[$section] : []);
        }

        // Ensure the private/loopback IP defaults are present when the list is empty
        if (empty($config['analytics']['excluded_ips'])) {
            $config['analytics']['excluded_ips'] = $sectionDefaults['analytics']['excluded_ips'];
        }

        // Convert relative paths to absolute
        $projectRoot = __DIR__ . '/../../';
        if (isset($config['content_dir']) && strpos($config['content_dir'], '/') !== 0) {
            $config['content_dir'] = $projectRoot . $config['content_dir'];
        }

        // Load active theme
        $activeTheme = $config['active_theme'] ?? 'default';
        $themeDir = __DIR__ . '/../../themes/' . $activeTheme;
        $config['theme_dir'] = $themeDir;
        $themeFile = $themeDir . '/theme.json';
        if (file_exists($themeFile)) {
            $themeConfig = json_decode(file_get_contents($themeFile), true);
            $config['theme'] = $themeConfig;
        } else {
            $config['theme'] = [];
        }

        return $config;
    }
}

// Fallback to minimal config
return [
    'site_title' => 'CodePress',
    'content_dir' => __DIR__ . '/../../content',
    'default_page' => 'auto'
];