<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use Illuminate\Http\JsonResponse;
use Illuminate\View\View;
use Illuminate\Support\Facades\DB;
use Carbon\Carbon;


use App\Models\Client;
use App\Models\UserActivity;
use App\Models\StaffMember;
use App\Models\NationalHoliday;
use App\Models\DailyQuote;
use App\Models\LeaveRequest;
use App\Models\GeneralDocument;

use App\Models\NetworkOperator;
use App\Models\ShortCode;
use App\Models\SenderId;


class DashboardController extends Controller
{
    public function indexOld(): View
    {
        // Grouped OR clauses inside a closure to prevent query bleeding
        $ussd_clients = Client::where(function ($query) {
            $query->where('services', 'LIKE', '%ussd%')
                  ->orWhere('services', 'LIKE', '%A2P%');
        })->count();

        $airtime_clients = Client::where('services', 'LIKE', '%airtime%')->count();
        $sms_clients = Client::where('services', 'LIKE', '%sms%')->count();
        $voice_clients = Client::where('services', 'LIKE', '%ivr%')->count();

        // Cleaned up the null/empty checks and removed the dangerous global orWhere
        $expiring_contracts = Client::where('contract_auto_renew', '!=', 'YES')
            ->whereNotNull('contract_validity')
            ->where('contract_validity', '!=', '')
            ->orderBy('contract_validity', 'ASC')
            ->take(5)
            ->get();

        $user_activities = UserActivity::where('user_id', '>', 1)
            ->with('userInfo')
            ->orderBy('created_at', 'DESC')
            ->take(5)
            ->get();

        $recent_clients = Client::with('auth_user_info')
            ->orderBy('id', 'DESC')
            ->take(5)
            ->get();

        // Cleaner raw query for upcoming birthdays ignoring the current year
        $upcoming_birthdays = StaffMember::whereRaw("DATE_FORMAT(dob, '%m-%d') >= DATE_FORMAT(CURDATE(), '%m-%d')")
            ->orderByRaw("DATE_FORMAT(dob, '%m-%d') ASC")
            ->take(5)
            ->get();

        $upcoming_hodidays = NationalHoliday::whereDate('event_date', '>=', Carbon::today())
            ->orderBy('event_date', 'ASC')
            ->take(15)
            ->get();

        $main_quote = DailyQuote::where('status', 'active')->first();

        return view('dashboard.index_two', [
            'page_title'         => 'Dashboard',
            'sms'                => $sms_clients,
            'ussd'               => $ussd_clients,
            'voice'              => $voice_clients,
            'airtime'            => $airtime_clients,
            'total'              => Client::count(),
            'main_quote'         => $main_quote,
            'recent_clients'     => $recent_clients,
            'user_activities'    => $user_activities,
            'expiring_contracts' => $expiring_contracts,
            'upcoming_birthdays' => $upcoming_birthdays,
            'upcoming_hodidays'  => $upcoming_hodidays
        ]);
    }
    public function index()
    {
        // --- 1. TELECOM & CLIENT INSIGHTS (Top Section) ---
        $totalClients = Client::count();
        $activeClients = Client::where('status', 'Live')->count(); // Assuming you have a status column
        $activeNetworks = NetworkOperator::where('connection_status', 'ACTIVE')->count();
        $activeShortCodes = ShortCode::where('status', 'LIVE')->count();
        $totalSenderIds = SenderId::where('status', 'LIKE', 'APPROVED%')->count();

        // Calculate a quick insight (e.g., percentage of active clients)
        $clientActiveRate = $totalClients > 0 ? round(($activeClients / $totalClients) * 100) : 0;

        // --- 2. HR & INTERNAL METRICS (Bottom Section) ---
        $totalStaff = StaffMember::where('status', 'ACTIVE')->count();
        $pendingLeaves = LeaveRequest::where('status', 'PENDING')->count();
        $totalDocuments = GeneralDocument::count();
        $activeLeavesThisMonth = LeaveRequest::where('status', 'APPROVED')
            ->whereMonth('start_date', Carbon::now()->month)
            ->count();

        $recentPendingLeaves = LeaveRequest::with('staff')->where('status', 'PENDING')->orderBy('created_at', 'desc')->take(5)->get();
        $recentDocuments = GeneralDocument::with('uploader')->orderBy('created_at', 'desc')->take(5)->get();

        // Upcoming Birthdays
        $currentMonthDay = Carbon::now()->format('m-d');
        $futureMonthDay = Carbon::now()->addDays(30)->format('m-d');
        $upcomingBirthdays = StaffMember::where(function($query) use ($currentMonthDay, $futureMonthDay) {
            if ($currentMonthDay <= $futureMonthDay) {
                $query->whereBetween('dob', [$currentMonthDay, $futureMonthDay]);
            } else {
                $query->where('dob', '>=', $currentMonthDay)->orWhere('dob', '<=', $futureMonthDay);
            }
        })->orderBy('dob', 'asc')->take(5)->get();

        $main_quote = DailyQuote::where('status', 'active')->first();
        // dd($main_quote);

        return view('dashboard.index', compact(
            'totalClients', 'activeClients', 'activeNetworks', 'activeShortCodes', 'totalSenderIds', 'clientActiveRate',
            'totalStaff', 'pendingLeaves', 'totalDocuments', 'activeLeavesThisMonth', 'main_quote',
            'recentPendingLeaves', 'recentDocuments', 'upcomingBirthdays'
        ));
    }
    public function indexHr()
    {
        // 1. Key Metrics
        $totalStaff = StaffMember::where('status', 'ACTIVE')->count();
        $pendingLeaves = LeaveRequest::where('status', 'PENDING')->count();
        $totalDocuments = GeneralDocument::count();
        
        // Approved leaves happening this month
        $activeLeavesThisMonth = LeaveRequest::where('status', 'APPROVED')
            ->whereMonth('start_date', Carbon::now()->month)
            ->count();

        // 2. Pending Leave Requests for HR Action
        $recentPendingLeaves = LeaveRequest::with('staff')
            ->where('status', 'PENDING')
            ->orderBy('created_at', 'desc')
            ->take(5)
            ->get();

        // 3. Recently Uploaded Documents
        $recentDocuments = GeneralDocument::with('uploader')
            ->orderBy('created_at', 'desc')
            ->take(5)
            ->get();

        // 4. Upcoming Birthdays (Using our MM-DD string format logic)
        $currentMonthDay = Carbon::now()->format('m-d');
        $futureMonthDay = Carbon::now()->addDays(30)->format('m-d');

        if ($currentMonthDay <= $futureMonthDay) {
            $upcomingBirthdays = StaffMember::whereBetween('dob', [$currentMonthDay, $futureMonthDay])
                ->orderBy('dob', 'asc')
                ->take(5)
                ->get();
        } else {
            $upcomingBirthdays = StaffMember::where(function($query) use ($currentMonthDay, $futureMonthDay) {
                    $query->where('dob', '>=', $currentMonthDay)
                          ->orWhere('dob', '<=', $futureMonthDay);
                })
                ->orderBy('dob', 'asc')
                ->take(5)
                ->get();
        }

        $totalClients = Client::count(); // Or where('status', 'ACTIVE')
        $totalNetworks = NetworkOperator::count();
        
        $recentClients = Client::orderBy('created_at', 'desc')->take(5)->get();
        $activeNetworks = NetworkOperator::where('connection_status', 'ACTIVE')->get();
        $activeShortCodes = ShortCode::where('status', 'ACTIVE')->get();
        $activeSenderIds = SenderId::where('status', 'ACTIVE')->get();
        return view('dashboard.index', compact(
            'totalStaff', 'pendingLeaves', 'totalDocuments', 'activeLeavesThisMonth',
            'recentPendingLeaves', 'recentDocuments', 'upcomingBirthdays',
            'totalClients', 'totalNetworks', 'recentClients', 'activeNetworks', 'activeShortCodes', 'activeSenderIds'
        ));

        return view('dashboard.index', compact(
            'totalStaff',
            'pendingLeaves',
            'totalDocuments',
            'activeLeavesThisMonth',
            'recentPendingLeaves',
            'recentDocuments',
            'upcomingBirthdays'
        ));
    }
    public function getEvents(): JsonResponse
    {
        $event_arr = [
            [
                "title" => 'Airtel MW Top Up',
                "start" => date("Y-m-d") // Fixed format: Most JS calendars expect Y-m-d, not Y, m, d
            ],
            [
                "title" => 'Airtel MW Top Down',
                "start" => date("Y-m-d")
            ],
        ];

        return response()->json($event_arr);
    }

    public function getQuotes(): JsonResponse
    {
        // Replaced complex raw SQL with Laravel's native randomized sorting
        $daily_quote = DailyQuote::inRandomOrder()->first();
        
        return response()->json($daily_quote);
    }

    public function getMnosContracts(): JsonResponse
    {
        $threeMonthsLater = Carbon::now()->addMonths(3)->format('m-d');
        $currentMonth = Carbon::now()->format('m');

        // Added ->count() directly to the query builder to save RAM
        $expiring_three_months = NetworkOps::where('contract_auto_renew', 'NO')
            ->whereRaw("DATE_FORMAT(contract_validity, '%m-%d') = ?", [$threeMonthsLater])
            ->count();

        $expired_overall = NetworkOps::whereDate('contract_validity', '<', Carbon::now())->count();
        
        $expiring_current_month = NetworkOps::whereMonth('contract_validity', $currentMonth)->count();

        return response()->json([
            'expiring_three_months'  => $expiring_three_months,
            'expired_overall'        => $expired_overall,
            'expiring_current_month' => $expiring_current_month
        ]);
    }

    public function getClientContracts(): JsonResponse
    {
        $threeMonthsLater = Carbon::now()->addMonths(3)->format('m-d');
        $currentMonth = Carbon::now()->format('m');

        $expiring_three_months = Client::where('contract_auto_renew', 'NO')
            ->whereRaw("DATE_FORMAT(contract_validity, '%m-%d') = ?", [$threeMonthsLater])
            ->count();

        $expired_overall = Client::whereDate('contract_validity', '<', Carbon::now())->count();

        $expiring_current_month = Client::whereMonth('contract_validity', $currentMonth)->count();

        return response()->json([
            'expiring_three_months'  => $expiring_three_months,
            'expired_overall'        => $expired_overall,
            'expiring_current_month' => $expiring_current_month
        ]);
    }
}