<?php

namespace App\Http\Controllers;

use App\Models\Member;
use App\Models\MembershipPayment;
use App\Models\FinanceDocument;
use Illuminate\Http\Request;

class AdminDashboardController extends Controller
{
    public function index()
    {
        // Member statistics
        $totalMembers = Member::count();
        $activeMembers = Member::whereDate('membership_expires_at', '>=', now()->toDateString())->count();
        $expiredMembers = Member::where(function ($q) {
            $q->whereNull('membership_expires_at')
                ->orWhereDate('membership_expires_at', '<', now()->toDateString());
        })->count();
        $expiringSoon = Member::whereBetween('membership_expires_at', [
            now()->toDateString(),
            now()->addDays(30)->toDateString()
        ])->count();

        // Payment statistics
        $totalPayments = MembershipPayment::count();
        $totalRevenue = MembershipPayment::sum('amount') ?? 0;
        $recentPayments = MembershipPayment::with('member')
            ->orderByDesc('paid_at')
            ->limit(5)
            ->get();
        $paymentsThisMonth = MembershipPayment::whereYear('paid_at', now()->year)
            ->whereMonth('paid_at', now()->month)
            ->count();
        $revenueThisMonth = MembershipPayment::whereYear('paid_at', now()->year)
            ->whereMonth('paid_at', now()->month)
            ->sum('amount') ?? 0;

        // Finance document statistics
        $pendingApprovals = FinanceDocument::where('status', '!=', FinanceDocument::STATUS_APPROVED_CHAIR)
            ->where('status', '!=', FinanceDocument::STATUS_REJECTED)
            ->count();
        $fullyApprovedDocs = FinanceDocument::where('status', FinanceDocument::STATUS_APPROVED_CHAIR)->count();
        $rejectedDocs = FinanceDocument::where('status', FinanceDocument::STATUS_REJECTED)->count();

        // Documents pending user's approval
        $user = auth()->user();
        $myPendingApprovals = 0;
        if ($user->hasRole('cashier')) {
            $myPendingApprovals += FinanceDocument::where('status', FinanceDocument::STATUS_PENDING)->count();
        }
        if ($user->hasRole('accountant')) {
            $myPendingApprovals += FinanceDocument::where('status', FinanceDocument::STATUS_APPROVED_CASHIER)->count();
        }
        if ($user->hasRole('chair')) {
            $myPendingApprovals += FinanceDocument::where('status', FinanceDocument::STATUS_APPROVED_ACCOUNTANT)->count();
        }

        return view('admin.dashboard.index', compact(
            'totalMembers',
            'activeMembers',
            'expiredMembers',
            'expiringSoon',
            'totalPayments',
            'totalRevenue',
            'recentPayments',
            'paymentsThisMonth',
            'revenueThisMonth',
            'pendingApprovals',
            'fullyApprovedDocs',
            'rejectedDocs',
            'myPendingApprovals'
        ));
    }
}