@extends('layouts.app')

@section('title', 'Payroll Management')
@section('subtitle', 'Manage employee payroll and salary processing')

@section('content')
<div class="max-w-7xl mx-auto py-4 sm:py-6 px-4 sm:px-6 lg:px-8">
    <!-- Success/Error Messages -->
    @if(session('success'))
        <div class="mb-6 bg-green-50 border border-green-200 text-green-700 px-4 py-3 rounded-lg">
            <div class="flex items-center">
                <i class="fas fa-check-circle mr-2"></i>
                {{ session('success') }}
            </div>
        </div>
    @endif

    @if(session('error'))
        <div class="mb-6 bg-red-50 border border-red-200 text-red-700 px-4 py-3 rounded-lg">
            <div class="flex items-center">
                <i class="fas fa-exclamation-circle mr-2"></i>
                {{ session('error') }}
            </div>
        </div>
    @endif

    <!-- Statistics Cards -->
    <div class="grid grid-cols-2 sm:grid-cols-2 lg:grid-cols-4 gap-3 sm:gap-4 lg:gap-6 mb-6 sm:mb-8">
        <div class="bg-white rounded-xl shadow-lg hover:shadow-xl transition-all duration-300 border-l-4 border-blue-500">
            <div class="p-4 sm:p-6">
                <div class="flex items-center">
                    <div class="p-3 rounded-full bg-blue-100 text-blue-600">
                        <i class="fas fa-file-invoice-dollar text-xl"></i>
                    </div>
                    <div class="ml-4">
                        <p class="text-sm font-medium text-gray-600">Total Payrolls</p>
                        <p class="text-2xl font-bold text-gray-900">{{ $stats['total_payrolls'] }}</p>
                    </div>
                </div>
            </div>
        </div>

        <div class="bg-white rounded-xl shadow-lg hover:shadow-xl transition-all duration-300 border-l-4 border-yellow-500">
            <div class="p-4 sm:p-6">
                <div class="flex items-center">
                    <div class="p-3 rounded-full bg-yellow-100 text-yellow-600">
                        <i class="fas fa-edit text-xl"></i>
                    </div>
                    <div class="ml-4">
                        <p class="text-sm font-medium text-gray-600">Draft</p>
                        <p class="text-2xl font-bold text-gray-900">{{ $stats['draft_payrolls'] }}</p>
                    </div>
                </div>
            </div>
        </div>

        <div class="bg-white rounded-xl shadow-lg hover:shadow-xl transition-all duration-300 border-l-4 border-green-500">
            <div class="p-4 sm:p-6">
                <div class="flex items-center">
                    <div class="p-3 rounded-full bg-green-100 text-green-600">
                        <i class="fas fa-check-circle text-xl"></i>
                    </div>
                    <div class="ml-4">
                        <p class="text-sm font-medium text-gray-600">Paid</p>
                        <p class="text-2xl font-bold text-gray-900">{{ $stats['paid_payrolls'] }}</p>
                    </div>
                </div>
            </div>
        </div>

        <div class="bg-white rounded-xl shadow-lg hover:shadow-xl transition-all duration-300 border-l-4 border-purple-500">
            <div class="p-4 sm:p-6">
                <div class="flex items-center">
                    <div class="p-3 rounded-full bg-purple-100 text-purple-600">
                        <i class="fas fa-money-bill-wave text-xl"></i>
                    </div>
                    <div class="ml-4">
                        <p class="text-sm font-medium text-gray-600">Total Net Salary</p>
                        <p class="text-2xl font-bold text-gray-900">TZS {{ number_format($stats['total_net_salary'], 0) }}</p>
                    </div>
                </div>
            </div>
        </div>
    </div>

    <!-- Action Buttons -->
    <div class="flex flex-col sm:flex-row gap-4 mb-6">
        <a href="{{ route('hr.payroll.create') }}" class="inline-flex items-center px-4 py-2 bg-blue-500 text-white rounded-lg hover:bg-blue-600 transition-colors">
            <i class="fas fa-plus mr-2"></i>
            Create Payroll
        </a>
        <button onclick="openGenerateModal()" class="inline-flex items-center px-4 py-2 bg-green-500 text-white rounded-lg hover:bg-green-600 transition-colors">
            <i class="fas fa-calendar-alt mr-2"></i>
            Generate Monthly
        </button>
    </div>

    <!-- Filters -->
    <div class="bg-white rounded-xl shadow-lg p-6 mb-6">
        <form method="GET" class="grid grid-cols-1 md:grid-cols-4 gap-4">
            <div>
                <label class="block text-sm font-medium text-gray-700 mb-2">Payroll Period</label>
                <input type="month" name="payroll_period" value="{{ request('payroll_period') }}"
                       class="w-full px-3 py-2 border border-gray-300 rounded-lg focus:outline-none focus:ring-blue-500 focus:border-blue-500">
            </div>
            <div>
                <label class="block text-sm font-medium text-gray-700 mb-2">Status</label>
                <select name="status" class="w-full px-3 py-2 border border-gray-300 rounded-lg focus:outline-none focus:ring-blue-500 focus:border-blue-500">
                    <option value="">All Status</option>
                    <option value="draft" {{ request('status') == 'draft' ? 'selected' : '' }}>Draft</option>
                    <option value="approved" {{ request('status') == 'approved' ? 'selected' : '' }}>Approved</option>
                    <option value="paid" {{ request('status') == 'paid' ? 'selected' : '' }}>Paid</option>
                </select>
            </div>
            <div>
                <label class="block text-sm font-medium text-gray-700 mb-2">Employee</label>
                <select name="user_id" class="w-full px-3 py-2 border border-gray-300 rounded-lg focus:outline-none focus:ring-blue-500 focus:border-blue-500">
                    <option value="">All Employees</option>
                    @foreach($employees as $employee)
                        <option value="{{ $employee->id }}" {{ request('user_id') == $employee->id ? 'selected' : '' }}>
                            {{ $employee->full_name }}
                        </option>
                    @endforeach
                </select>
            </div>
            <div class="flex items-end">
                <button type="submit" class="w-full px-4 py-2 bg-gray-500 text-white rounded-lg hover:bg-gray-600 transition-colors">
                    <i class="fas fa-search mr-2"></i>
                    Filter
                </button>
            </div>
        </form>
    </div>

    <!-- Payroll Table -->
    <div class="bg-white rounded-xl shadow-lg overflow-hidden">
        <div class="px-6 py-4 border-b border-gray-200 bg-blue-50">
            <h3 class="text-lg font-medium text-gray-900">
                <i class="fas fa-file-invoice-dollar text-blue-600 mr-2"></i>
                Payroll Records
            </h3>
        </div>
        
        <div class="overflow-x-auto">
            <table class="min-w-full divide-y divide-gray-200">
                <thead class="bg-gray-50">
                    <tr>
                        <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Employee</th>
                        <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Period</th>
                        <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Basic Salary</th>
                        <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Advance</th>
                        <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Gross Salary</th>
                        <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Deductions</th>
                        <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Net Salary</th>
                        <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Status</th>
                        <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Actions</th>
                    </tr>
                </thead>
                <tbody class="bg-white divide-y divide-gray-200">
                    @forelse($payrolls as $payroll)
                        <tr class="hover:bg-gray-50 transition-colors">
                            <td class="px-6 py-4 whitespace-nowrap">
                                <div class="flex items-center">
                                    <div class="w-10 h-10 bg-blue-600 rounded-full flex items-center justify-center">
                                        <span class="text-white font-semibold text-sm">{{ $payroll->user->initials }}</span>
                                    </div>
                                    <div class="ml-4">
                                        <div class="text-sm font-medium text-gray-900">{{ $payroll->user->full_name }}</div>
                                        <div class="text-sm text-gray-500">{{ $payroll->user->employee_id }}</div>
                                    </div>
                                </div>
                            </td>
                            <td class="px-6 py-4 whitespace-nowrap text-sm text-gray-900">
                                {{ $payroll->formatted_period }}
                            </td>
                            <td class="px-6 py-4 whitespace-nowrap text-sm text-gray-900">
                                TZS {{ number_format($payroll->basic_salary, 0) }}
                            </td>
                            <td class="px-6 py-4 whitespace-nowrap text-sm text-gray-900">
                                TZS {{ number_format($payroll->advance_salary ?? 0, 0) }}
                            </td>
                            <td class="px-6 py-4 whitespace-nowrap text-sm text-gray-900">
                                TZS {{ number_format($payroll->gross_salary, 0) }}
                            </td>
                            <td class="px-6 py-4 whitespace-nowrap text-sm text-gray-900">
                                TZS {{ number_format($payroll->total_deductions, 0) }}
                            </td>
                            <td class="px-6 py-4 whitespace-nowrap text-sm font-medium text-gray-900">
                                TZS {{ number_format($payroll->net_salary, 0) }}
                            </td>
                            <td class="px-6 py-4 whitespace-nowrap">
                                <span class="inline-flex px-2 py-1 text-xs font-semibold rounded-full 
                                    {{ $payroll->status === 'paid' ? 'bg-green-100 text-green-800' : 
                                       ($payroll->status === 'approved' ? 'bg-blue-100 text-blue-800' : 'bg-yellow-100 text-yellow-800') }}">
                                    {{ ucfirst($payroll->status) }}
                                </span>
                            </td>
                            <td class="px-6 py-4 whitespace-nowrap text-sm font-medium">
                                <div class="flex space-x-2">
                                    <a href="{{ route('hr.payroll.show', $payroll) }}" class="text-blue-600 hover:text-blue-900" title="View">
                                        <i class="fas fa-eye"></i>
                                    </a>
                                    <a href="{{ route('hr.payroll.edit', $payroll) }}" class="text-green-600 hover:text-green-900" title="Edit">
                                        <i class="fas fa-edit"></i>
                                    </a>
                                    <a href="{{ route('hr.payroll.download', $payroll) }}" class="text-purple-600 hover:text-purple-900" title="Download Receipt">
                                        <i class="fas fa-download"></i>
                                    </a>
                                    @if($payroll->status !== 'paid')
                                        <button onclick="markAsPaid({{ $payroll->id }})" class="text-green-600 hover:text-green-900" title="Mark as Paid">
                                            <i class="fas fa-check"></i>
                                        </button>
                                    @endif
                                </div>
                            </td>
                        </tr>
                    @empty
                        <tr>
                            <td colspan="9" class="px-6 py-12 text-center text-gray-500">
                                <div class="flex flex-col items-center">
                                    <i class="fas fa-file-invoice-dollar text-4xl text-gray-300 mb-4"></i>
                                    <p class="text-lg font-medium">No payroll records found</p>
                                    <p class="text-sm">Create your first payroll or generate monthly payrolls.</p>
                                </div>
                            </td>
                        </tr>
                    @endforelse
                </tbody>
            </table>
        </div>
        
        <div class="px-6 py-4 border-t border-gray-200">
            {{ $payrolls->links() }}
        </div>
    </div>
</div>

<!-- Generate Monthly Modal -->
<div id="generateModal" class="fixed inset-0 bg-gray-600 bg-opacity-50 overflow-y-auto h-full w-full hidden z-50">
    <div class="relative top-20 mx-auto p-5 border w-96 shadow-lg rounded-md bg-white">
        <div class="mt-3">
            <h3 class="text-lg font-medium text-gray-900 mb-4">Generate Monthly Payroll</h3>
            <form method="POST" action="{{ route('hr.payroll.generate') }}">
                @csrf
                <div class="mb-4">
                    <label class="block text-sm font-medium text-gray-700 mb-2">Payroll Period</label>
                    <input type="month" name="payroll_period" required
                           class="w-full px-3 py-2 border border-gray-300 rounded-lg focus:outline-none focus:ring-blue-500 focus:border-blue-500">
                </div>
                <div class="mb-4">
                    <label class="block text-sm font-medium text-gray-700 mb-2">Payroll Date</label>
                    <input type="date" name="payroll_date" required value="{{ date('Y-m-d') }}"
                           class="w-full px-3 py-2 border border-gray-300 rounded-lg focus:outline-none focus:ring-blue-500 focus:border-blue-500">
                </div>
                <div class="flex justify-end space-x-2">
                    <button type="button" onclick="closeGenerateModal()" class="px-4 py-2 bg-gray-500 text-white rounded-lg hover:bg-gray-600 transition-colors">
                        Cancel
                    </button>
                    <button type="submit" class="px-4 py-2 bg-green-500 text-white rounded-lg hover:bg-green-600 transition-colors">
                        Generate
                    </button>
                </div>
            </form>
        </div>
    </div>
</div>

<!-- Mark as Paid Modal -->
<div id="paidModal" class="fixed inset-0 bg-gray-600 bg-opacity-50 overflow-y-auto h-full w-full hidden z-50">
    <div class="relative top-20 mx-auto p-5 border w-96 shadow-lg rounded-md bg-white">
        <div class="mt-3">
            <h3 class="text-lg font-medium text-gray-900 mb-4">Mark as Paid</h3>
            <form id="paidForm" method="POST">
                @csrf
                @method('PATCH')
                <div class="mb-4">
                    <label class="block text-sm font-medium text-gray-700 mb-2">Payment Method</label>
                    <select name="payment_method" required class="w-full px-3 py-2 border border-gray-300 rounded-lg focus:outline-none focus:ring-blue-500 focus:border-blue-500">
                        <option value="">Select Method</option>
                        <option value="Bank Transfer">Bank Transfer</option>
                        <option value="Cash">Cash</option>
                        <option value="Mobile Money">Mobile Money</option>
                        <option value="Check">Check</option>
                    </select>
                </div>
                <div class="mb-4">
                    <label class="block text-sm font-medium text-gray-700 mb-2">Transaction Reference</label>
                    <input type="text" name="transaction_reference" placeholder="Optional"
                           class="w-full px-3 py-2 border border-gray-300 rounded-lg focus:outline-none focus:ring-blue-500 focus:border-blue-500">
                </div>
                <div class="flex justify-end space-x-2">
                    <button type="button" onclick="closePaidModal()" class="px-4 py-2 bg-gray-500 text-white rounded-lg hover:bg-gray-600 transition-colors">
                        Cancel
                    </button>
                    <button type="submit" class="px-4 py-2 bg-green-500 text-white rounded-lg hover:bg-green-600 transition-colors">
                        Mark as Paid
                    </button>
                </div>
            </form>
        </div>
    </div>
</div>

<script>
    function openGenerateModal() {
        document.getElementById('generateModal').classList.remove('hidden');
    }

    function closeGenerateModal() {
        document.getElementById('generateModal').classList.add('hidden');
    }

    function markAsPaid(payrollId) {
        document.getElementById('paidForm').action = `/hr/payroll/${payrollId}/mark-paid`;
        document.getElementById('paidModal').classList.remove('hidden');
    }

    function closePaidModal() {
        document.getElementById('paidModal').classList.add('hidden');
    }

    // Close modals when clicking outside
    window.onclick = function(event) {
        const generateModal = document.getElementById('generateModal');
        const paidModal = document.getElementById('paidModal');
        
        if (event.target === generateModal) {
            closeGenerateModal();
        }
        if (event.target === paidModal) {
            closePaidModal();
        }
    }
</script>
@endsection