@extends('layouts.app')

@section('title', 'Leave Balance')

@section('content')
<div class="p-6">
    <div class="bg-white rounded-lg shadow-sm border border-gray-200">
        <div class="px-6 py-4 border-b border-gray-200 flex justify-between items-center">
            <h5 class="text-lg font-semibold text-gray-900">Leave Balance Overview</h5>
            <div class="flex gap-2">
                <a href="{{ route('leave.index') }}" class="inline-flex items-center px-3 py-2 border border-gray-300 text-sm leading-4 font-medium rounded-md text-gray-700 bg-white hover:bg-gray-50 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-primary-500">
                    <i class="fas fa-list mr-2"></i> Leave Requests
                </a>
                <a href="{{ route('leave.calendar') }}" class="inline-flex items-center px-3 py-2 border border-gray-300 text-sm leading-4 font-medium rounded-md text-gray-700 bg-white hover:bg-gray-50 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-primary-500">
                    <i class="fas fa-calendar mr-2"></i> Calendar View
                </a>
            </div>
        </div>
        <div class="p-6">
            <!-- Filters -->
            <form method="GET" action="{{ route('leave.balance') }}" class="mb-6">
                <div class="grid grid-cols-1 md:grid-cols-3 gap-4">
                    <div>
                        <label for="year" class="block text-sm font-medium text-gray-700 mb-2">Year</label>
                        <select name="year" id="year" class="block w-full border-gray-300 rounded-md shadow-sm focus:ring-primary-500 focus:border-primary-500 sm:text-sm">
                            @for($y = date('Y') - 2; $y <= date('Y') + 2; $y++)
                                <option value="{{ $y }}" {{ $year == $y ? 'selected' : '' }}>
                                    {{ $y }}
                                </option>
                            @endfor
                        </select>
                    </div>
                    <div>
                        <label for="department_id" class="block text-sm font-medium text-gray-700 mb-2">Department</label>
                        <select name="department_id" id="department_id" class="block w-full border-gray-300 rounded-md shadow-sm focus:ring-primary-500 focus:border-primary-500 sm:text-sm">
                            <option value="">All Departments</option>
                            @foreach($departments as $id => $name)
                                <option value="{{ $id }}" {{ $departmentId == $id ? 'selected' : '' }}>
                                    {{ $name }}
                                </option>
                            @endforeach
                        </select>
                    </div>
                    <div class="flex items-end gap-2">
                        <button type="submit" class="inline-flex items-center px-4 py-2 border border-transparent text-sm font-medium rounded-md text-white bg-primary-600 hover:bg-primary-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-primary-500">
                            <i class="fas fa-filter mr-2"></i> Filter
                        </button>
                        <a href="{{ route('leave.balance') }}" class="inline-flex items-center px-4 py-2 border border-gray-300 text-sm font-medium rounded-md text-gray-700 bg-white hover:bg-gray-50 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-primary-500">
                            <i class="fas fa-times mr-2"></i> Clear
                        </a>
                    </div>
                </div>
            </form>

            <!-- Summary Cards -->
            <div class="grid grid-cols-1 md:grid-cols-3 gap-6 mb-6">
                <div class="bg-primary-600 rounded-lg shadow-lg p-6 text-white">
                    <div class="flex items-center justify-between">
                        <div>
                            <h4 class="text-2xl font-bold">{{ $leaveBalances->sum('total_days') }}</h4>
                            <p class="text-primary-100">Total Allocated Days</p>
                        </div>
                        <div class="text-primary-200">
                            <i class="fas fa-calendar-plus text-3xl"></i>
                        </div>
                    </div>
                </div>
                <div class="bg-green-600 rounded-lg shadow-lg p-6 text-white">
                    <div class="flex items-center justify-between">
                        <div>
                            <h4 class="text-2xl font-bold">{{ $leaveBalances->sum(function($balance) { return $balance->total_days - $balance->used_days; }) }}</h4>
                            <p class="text-green-100">Total Available Days</p>
                        </div>
                        <div class="text-green-200">
                            <i class="fas fa-calendar-check text-3xl"></i>
                        </div>
                    </div>
                </div>
                <div class="bg-yellow-600 rounded-lg shadow-lg p-6 text-white">
                    <div class="flex items-center justify-between">
                        <div>
                            <h4 class="text-2xl font-bold">{{ $leaveBalances->sum('used_days') }}</h4>
                            <p class="text-yellow-100">Total Used Days</p>
                        </div>
                        <div class="text-yellow-200">
                            <i class="fas fa-calendar-times text-3xl"></i>
                        </div>
                    </div>
                </div>
            </div>

            <!-- Leave Balance Table -->
            <div class="overflow-hidden shadow ring-1 ring-black ring-opacity-5 md:rounded-lg">
                <table class="min-w-full divide-y divide-gray-300">
                    <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">Department</th>
                            <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Leave Type</th>
                            <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Total Days</th>
                            <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Used Days</th>
                            <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Available Days</th>
                            <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Usage %</th>
                            <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Status</th>
                        </tr>
                    </thead>
                    <tbody class="bg-white divide-y divide-gray-200">
                        @forelse($leaveBalances as $balance)
                            <tr>
                                <td class="px-6 py-4 whitespace-nowrap">
                                    <div class="flex items-center">
                                        <img class="h-8 w-8 rounded-full" src="{{ $balance->user->avatar }}" alt="">
                                        <div class="ml-3">
                                            <div class="text-sm font-medium text-gray-900">{{ $balance->user->full_name }}</div>
                                            <div class="text-sm text-gray-500">{{ $balance->user->email }}</div>
                                        </div>
                                    </div>
                                </td>
                                <td class="px-6 py-4 whitespace-nowrap text-sm text-gray-900">{{ $balance->user->departments->first()?->name ?? 'N/A' }}</td>
                                <td class="px-6 py-4 whitespace-nowrap">
                                    <span class="inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium bg-blue-100 text-blue-800">{{ $balance->leaveType->name }}</span>
                                </td>
                                <td class="px-6 py-4 whitespace-nowrap text-sm text-gray-900">{{ $balance->total_days }}</td>
                                <td class="px-6 py-4 whitespace-nowrap text-sm text-gray-900">{{ $balance->used_days }}</td>
                                <td class="px-6 py-4 whitespace-nowrap text-sm font-medium text-gray-900">{{ $balance->remaining_days }}</td>
                                <td class="px-6 py-4 whitespace-nowrap">
                                    <div class="flex items-center">
                                        <div class="w-24 bg-gray-200 rounded-full h-2 mr-2">
                                            <div class="h-2 rounded-full" 
                                                 style="width: {{ ($balance->used_days / $balance->total_days) * 100 }}%; 
                                                        background-color: {{ ($balance->used_days / $balance->total_days) > 0.8 ? '#dc3545' : (($balance->used_days / $balance->total_days) > 0.6 ? '#ffc107' : '#28a745') }};">
                                            </div>
                                        </div>
                                        <span class="text-sm">{{ round(($balance->used_days / $balance->total_days) * 100) }}%</span>
                                    </div>
                                </td>
                                <td class="px-6 py-4 whitespace-nowrap">
                                    @if($balance->remaining_days <= 0)
                                        <span class="inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium bg-red-100 text-red-800">Exhausted</span>
                                    @elseif($balance->remaining_days <= 2)
                                        <span class="inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium bg-yellow-100 text-yellow-800">Low</span>
                                    @else
                                        <span class="inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium bg-green-100 text-green-800">Available</span>
                                    @endif
                                </td>
                            </tr>
                        @empty
                            <tr>
                                <td colspan="8" class="px-6 py-12 text-center">
                                    <div class="text-gray-500">
                                        <i class="fas fa-chart-pie text-4xl mb-4"></i>
                                        <p class="text-lg">No leave balance data found.</p>
                                    </div>
                                </td>
                            </tr>
                        @endforelse
                    </tbody>
                </table>
            </div>

            <!-- Pagination -->
            <div class="mt-6 flex items-center justify-between">
                <div class="text-sm text-gray-700">
                    Showing {{ $leaveBalances->firstItem() }} to {{ $leaveBalances->lastItem() }} 
                    of {{ $leaveBalances->total() }} entries
                </div>
                {{ $leaveBalances->links() }}
            </div>
        </div>
    </div>
</div>
@endsection

@section('scripts')
<script>
// Add any interactive features if needed
</script>
@endsection