<?php

declare(strict_types=1);

namespace OCA\AnalyticsHub\Controller;

use OCP\IRequest;
use OCP\IConfig;
use OCP\AppFramework\Http\TemplateResponse;

/**
 * Admin Settings Controller
 *
 * @AdminRequired
 * @NoCSRFRequired
 */
class PageController extends \OCP\AppFramework\Controller {

    protected $appName;
    protected $config;

    public function __construct(
        string $appName,
        IRequest $request,
        IConfig $config
    ) {
        parent::__construct($appName, $request);
        $this->appName = $appName;
        $this->config = $config;
    }

    /**
     * Index page - render admin UI
     *
     * @AdminRequired
     * @NoCSRFRequired
     */
    public function index(): TemplateResponse {
        // Get configuration values directly from config service
        $clientId = $this->config->getAppValue('analyticshub', 'google_client_id', '');
        $clientSecret = $this->config->getAppValue('analyticshub', 'google_client_secret', '');
        $refreshToken = $this->config->getAppValue('analyticshub', 'google_refresh_token', '');
        $apiKey = $this->config->getAppValue('analyticshub', 'anthropic_api_key', '');
        $llmEndpoint = $this->config->getAppValue('analyticshub', 'llm_api_endpoint', '');
        $llmModel = $this->config->getAppValue('analyticshub', 'llm_model', '');

        // Check if configured
        $isConfigured = !empty($clientId) && !empty($clientSecret) && !empty($refreshToken) && !empty($apiKey);
        $isGAConfigured = !empty($clientId) && !empty($clientSecret) && !empty($refreshToken);
        $isLLMConfigured = !empty($apiKey);

        // Mask secrets for display
        $maskedClientSecret = '';
        if (!empty($clientSecret)) {
            $maskedClientSecret = '••••••••••••••••';
        }

        $maskedRefreshToken = '';
        if (!empty($refreshToken)) {
            $maskedRefreshToken = substr($refreshToken, 0, 8) . '...' . substr($refreshToken, -4);
        }

        $maskedApiKey = '';
        if (!empty($apiKey)) {
            $maskedApiKey = substr($apiKey, 0, 8) . '...' . substr($apiKey, -4);
        }

        return new TemplateResponse('analyticshub', 'admin', [
            'app_name' => 'Mini-CMO Analytics Hub',
            'version' => '1.0.0',
            'status' => $isConfigured ? 'Ready' : 'Configuration Required',
            'is_configured' => $isConfigured,
            'is_ga_configured' => $isGAConfigured,
            'is_llm_configured' => $isLLMConfigured,
            'google_client_id' => $clientId,
            'google_client_secret_masked' => $maskedClientSecret,
            'google_refresh_token_masked' => $maskedRefreshToken,
            'llm_api_endpoint' => $llmEndpoint,
            'llm_model' => $llmModel,
            'anthropic_api_key_masked' => $maskedApiKey,
        ], 'blank'); // Use 'blank' rendering mode for admin pages
    }
}