<?php

namespace App\Http\Controllers;

use App\Models\Person;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;
use Carbon\Carbon;

class DashboardController extends Controller
{
    public function getStats()
    {
        // Total migrants count
        $totalMigrants = Person::count();
        
        // New migrants in the current month
        $currentMonthStart = Carbon::now()->startOfMonth();
        $newThisMonth = Person::where('created_at', '>=', $currentMonthStart)->count();
        
        // Recent additions (last 30 days)
        $thirtyDaysAgo = Carbon::now()->subDays(30);
        $recentAdditions = Person::where('created_at', '>=', $thirtyDaysAgo)->count();
        
        // Pending reviews - example: people with missing information
        $pendingReviews = Person::whereNull('date_of_birth')
                              ->orWhereNull('place_of_birth')
                              ->orWhereNull('occupation')
                              ->count();
        
        // Incomplete records - persons missing multiple key fields
        $incompleteRecords = Person::where(function($query) {
            $query->whereNull('date_of_birth')
                  ->orWhereNull('place_of_birth');
        })
        ->where(function($query) {
            $query->whereNull('occupation')
                  ->orWhereNull('reference')
                  ->orWhereNull('id_card_no');
        })
        ->count();
        
        return response()->json([
            'success' => true,
            'data' => [
                'total_migrants' => $totalMigrants,
                'new_this_month' => $newThisMonth,
                'recent_additions' => $recentAdditions,
                'pending_reviews' => $pendingReviews,
                'incomplete_records' => $incompleteRecords
            ]
        ]);
    }
}