<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;
use App\Models\AuditLog;
use App\Models\Category;
use App\Models\ChatLog;
use App\Models\Document;
use App\Models\DocumentVersion;
use App\Models\KnowledgeItem;
use App\Services\Ollama\OllamaService;
use App\Services\Qdrant\QdrantService;
use Illuminate\View\View;

class DashboardController extends Controller
{
    public function index(
        OllamaService $ollamaService,
        QdrantService $qdrantService
    ): View {
        $stats = [
            'total_documents'       => Document::count(),
            'active_documents'      => Document::where('is_active', true)->count(),
            'processing_documents'  => Document::where('status', 'processing')->count(),
            'failed_documents'      => Document::whereIn('status', ['failed', 'extraction_failed'])->count(),
            'total_categories'      => Category::where('is_active', true)->count(),
            'total_knowledge_items' => KnowledgeItem::where('is_active', true)->count(),
            'total_chats_today'     => ChatLog::whereDate('created_at', today())->count(),
            'unanswered_chats'      => ChatLog::where('has_answer', false)->count(),
            'flagged_chats'         => ChatLog::where('is_flagged', true)->count(),
        ];

        $recentActivity = AuditLog::with('user')
            ->latest('created_at')
            ->limit(10)
            ->get();

        $recentChats = ChatLog::with('category')
            ->latest()
            ->limit(5)
            ->get();

        // Health check (cache 60 saat supaya tidak lambat setiap load)
        $health = cache()->remember('service_health', 60, function () use ($ollamaService, $qdrantService) {
            return [
                'ollama' => $ollamaService->healthCheck(),
                'qdrant' => $qdrantService->healthCheck(),
            ];
        });

        return view('admin.dashboard', compact('stats', 'recentActivity', 'recentChats', 'health'));
    }
}