<?php

namespace App\Http\Controllers;

use App\Models\Site;
use App\Models\UptimeCheck;
use Illuminate\Http\Request;

class UptimeController extends Controller
{
    /**
     * Display uptime monitoring overview for all sites
     */
    public function index()
    {
        $sites = Site::where('user_id', auth()->id())
            ->with(['uptimeChecks' => function ($query) {
                $query->latest()->limit(1);
            }])
            ->get();

        // Get uptime statistics
        $stats = [
            'total_sites' => $sites->count(),
            'sites_up' => 0,
            'sites_down' => 0,
            'avg_response_time' => 0,
        ];

        $totalResponseTime = 0;
        $checksCount = 0;

        foreach ($sites as $site) {
            $latestCheck = $site->uptimeChecks->first();
            if ($latestCheck) {
                if ($latestCheck->is_online) {
                    $stats['sites_up']++;
                } else {
                    $stats['sites_down']++;
                }
                $totalResponseTime += $latestCheck->response_time ?? 0;
                $checksCount++;
            }
        }

        if ($checksCount > 0) {
            $stats['avg_response_time'] = round($totalResponseTime / $checksCount, 2);
        }

        // Get recent checks across all sites
        $recentChecks = UptimeCheck::whereHas('site', function ($query) {
            $query->where('user_id', auth()->id());
        })
            ->with('site')
            ->latest()
            ->limit(50)
            ->get();

        return view('uptime.index', compact('sites', 'stats', 'recentChecks'));
    }

    /**
     * Display uptime details for a specific site
     */
    public function show(Site $site)
    {
        $this->authorize('view', $site);

        $uptimeChecks = $site->uptimeChecks()
            ->orderBy('created_at', 'desc')
            ->paginate(100);

        // Calculate uptime percentage for last 30 days
        $checksLast30Days = $site->uptimeChecks()
            ->where('created_at', '>=', now()->subDays(30))
            ->get();

        $uptimePercentage = 0;
        if ($checksLast30Days->count() > 0) {
            $upCount = $checksLast30Days->where('is_online', true)->count();
            $uptimePercentage = round(($upCount / $checksLast30Days->count()) * 100, 2);
        }

        return view('uptime.show', compact('site', 'uptimeChecks', 'uptimePercentage'));
    }
}