@extends('layouts.app')

@section('title', 'Employee Assignments')

@section('content')
<div class="min-h-screen bg-gray-50 py-8">
    <div class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
        <!-- Page Header -->
        <div class="bg-white rounded-xl shadow-sm border border-gray-200 p-6 mb-6">
            <div class="flex flex-col sm:flex-row sm:items-center sm:justify-between">
                <div class="mb-4 sm:mb-0">
                    <div class="flex items-center">
                        <div class="bg-red-100 rounded-lg p-3 mr-4">
                            <i class="fas fa-user-tie text-red-600 text-xl"></i>
                        </div>
                        <div>
                            <h1 class="text-2xl font-bold text-gray-900">Employee Assignments</h1>
                            <p class="mt-1 text-sm text-gray-500">Manage all employee assignments across Sites</p>
                        </div>
                    </div>
                </div>
                <div class="flex flex-col sm:flex-row gap-3">
                    <a href="{{ route('services.index') }}" class="inline-flex items-center px-4 py-2 bg-gray-600 text-white text-sm font-medium rounded-lg hover:bg-gray-700 transition-all duration-200 shadow-sm hover:shadow-md">
                        <i class="fas fa-arrow-left mr-2"></i> Back to Sites
                    </a>
                </div>
            </div>
        </div>

        <!-- Filters -->
        <div class="bg-white rounded-xl shadow-sm border border-gray-200 p-6 mb-6">
            <div class="flex items-center mb-4">
                <i class="fas fa-filter text-gray-400 mr-2"></i>
                <h2 class="text-lg font-semibold text-gray-900">Filters</h2>
            </div>
            <form method="GET" action="{{ route('assignments.index') }}">
                <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-4">
                    <!-- Search Filter -->
                    <div>
                        <label for="search" class="block text-sm font-medium text-gray-700 mb-2">
                            <i class="fas fa-search text-gray-400 mr-1"></i> Search Employee or Site
                        </label>
                        <input type="text" name="search" id="search" value="{{ request('search') }}" 
                               placeholder="Search by employee name or service..." 
                               class="w-full px-3 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-red-500 focus:border-red-500 transition-colors">
                    </div>

                    <!-- Status Filter -->
                    <div>
                        <label for="status" class="block text-sm font-medium text-gray-700 mb-2">
                            <i class="fas fa-toggle-on text-gray-400 mr-1"></i> Status
                        </label>
                        <select name="status" id="status" class="w-full px-3 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-red-500 focus:border-red-500 transition-colors">
                            <option value="">All Status</option>
                            <option value="active" {{ request('status') == 'active' ? 'selected' : '' }}>Active</option>
                            <option value="inactive" {{ request('status') == 'inactive' ? 'selected' : '' }}>Inactive</option>
                        </select>
                    </div>
                </div>
                
                <div class="flex flex-col sm:flex-row gap-3 mt-4">
                    <button type="submit" class="inline-flex items-center px-4 py-2 bg-red-600 text-white text-sm font-medium rounded-lg hover:bg-red-700 transition-all duration-200 shadow-sm hover:shadow-md">
                        <i class="fas fa-search mr-2"></i> Search
                    </button>
                    <a href="{{ route('assignments.index') }}" class="inline-flex items-center px-4 py-2 bg-gray-200 text-gray-700 text-sm font-medium rounded-lg hover:bg-gray-300 transition-colors">
                        <i class="fas fa-redo mr-2"></i> Reset
                    </a>
                </div>
            </form>
        </div>

        <!-- Assignments Table -->
        <div class="bg-white rounded-xl shadow-sm border border-gray-200 overflow-hidden">
            <div class="px-6 py-4 border-b border-gray-200">
                <div class="flex items-center justify-end">
                    <div class="text-sm text-gray-500">
                        <span class="font-medium">{{ $assignments->count() }}</span> total assignments
                    </div>
                </div>
            </div>
            @if($assignments->count() > 0)
                <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-semibold text-gray-600 uppercase tracking-wider">Employee</th>
                                <th class="px-6 py-3 text-left text-xs font-semibold text-gray-600 uppercase tracking-wider">Sites</th>
                                <th class="px-6 py-3 text-left text-xs font-semibold text-gray-600 uppercase tracking-wider">Client</th>
                                <th class="px-6 py-3 text-left text-xs font-semibold text-gray-600 uppercase tracking-wider">Assignment Period</th>
                                <th class="px-6 py-3 text-center text-xs font-semibold text-gray-600 uppercase tracking-wider">Status</th>
                                <th class="px-6 py-3 text-right text-xs font-semibold text-gray-600 uppercase tracking-wider">Actions</th>
                            </tr>
                        </thead>
                        <tbody class="bg-white divide-y divide-gray-100">
                            @foreach($assignments as $assignment)
                                <tr class="hover:bg-gray-50 transition-colors">
                                    <td class="px-6 py-4">
                                        <div class="flex items-center gap-3">
                                            <div class="flex-shrink-0">
                                                <div class="flex items-center justify-center h-8 w-8 rounded-full bg-blue-100">
                                                    <i class="fas fa-user text-blue-600 text-sm"></i>
                                                </div>
                                            </div>
                                            <div>
                                                <p class="text-sm font-medium text-gray-900">{{ $assignment->employee?->fullName ?? 'Unknown Employee' }}</p>
                                                <p class="text-xs text-gray-500">{{ $assignment->employee?->email ?? '—' }}</p>
                                            </div>
                                        </div>
                                    </td>
                                    <td class="px-6 py-4">
                                        <div>
                                            <p class="text-sm font-medium text-gray-900">{{ $assignment->service?->service_name ?? '—' }}</p>
                                            <span class="inline-block px-2 py-1 text-xs font-semibold rounded-full bg-purple-100 text-purple-800 mt-1">
                                                {{ $assignment->service?->service_type ? ucfirst($assignment->service->service_type) : '—' }}
                                            </span>
                                        </div>
                                    </td>
                                    <td class="px-6 py-4">
                                        <p class="text-sm text-gray-900">{{ $assignment->service?->client?->name ?? '—' }}</p>
                                    </td>
                                    <td class="px-6 py-4">
                                        <div class="text-sm text-gray-600">
                                            <i class="fas fa-calendar-check mr-1 text-blue-600"></i>
                                            {{ $assignment->start_date->format('M d, Y') }}
                                            <br>
                                            @if($assignment->end_date)
                                                <i class="fas fa-calendar-times mr-1 text-red-600"></i>
                                                {{ $assignment->end_date->format('M d, Y') }}
                                            @else
                                                <span class="text-green-600 font-semibold">
                                                    <i class="fas fa-infinity mr-1"></i>Ongoing
                                                </span>
                                            @endif
                                        </div>
                                    </td>
                                    <td class="px-6 py-4 text-center">
                                        <span class="inline-block px-3 py-1 text-xs font-semibold rounded-full {{ $assignment->is_active ? 'bg-green-100 text-green-800' : 'bg-gray-100 text-gray-700' }}">
                                            <i class="fas {{ $assignment->is_active ? 'fa-check-circle' : 'fa-ban' }} mr-1"></i>
                                            {{ $assignment->is_active ? 'Active' : 'Inactive' }}
                                        </span>
                                    </td>
                                    <td class="px-6 py-4 whitespace-nowrap text-right text-sm font-medium">
                                        <div class="flex items-center justify-end space-x-2">
                                            <a href="{{ route('assignments.edit', $assignment) }}" 
                                               class="text-amber-600 hover:text-amber-800 transition-colors p-1 hover:bg-amber-50 rounded" 
                                               title="Edit Assignment">
                                                <i class="fas fa-edit"></i>
                                            </a>
                                            <a href="{{ route('transit.create', ['from_assignment_id' => $assignment->id]) }}" 
                                               class="text-red-600 hover:text-red-800 transition-colors p-1 hover:bg-red-50 rounded" 
                                               title="Transit">
                                                <i class="fas fa-exchange-alt"></i>
                                            </a>
                                            @if($assignment->service)
                                                <a href="{{ route('services.show', $assignment->service) }}" 
                                                   class="text-blue-600 hover:text-blue-800 transition-colors p-1 hover:bg-blue-50 rounded" 
                                                   title="View Site">
                                                    <i class="fas fa-eye"></i>
                                                </a>
                                            @endif
                                        </div>
                                    </td>
                                </tr>
                            @endforeach
                        </tbody>
                    </table>
                </div>

                <!-- Pagination -->
                @if($assignments->hasPages())
                    <div class="bg-gray-50 px-6 py-4 flex items-center justify-between border-t border-gray-200">
                        <div class="flex-1 flex justify-between sm:hidden">
                            <a href="{{ $assignments->previousPageUrl() }}" class="relative inline-flex items-center px-4 py-2 border border-gray-300 text-sm font-medium rounded-lg text-gray-700 bg-white hover:bg-gray-50 transition-colors">
                                <i class="fas fa-chevron-left mr-2"></i> Previous
                            </a>
                            <a href="{{ $assignments->nextPageUrl() }}" class="ml-3 relative inline-flex items-center px-4 py-2 border border-gray-300 text-sm font-medium rounded-lg text-gray-700 bg-white hover:bg-gray-50 transition-colors">
                                Next<i class="fas fa-chevron-right ml-2"></i>
                            </a>
                        </div>
                        <div class="hidden sm:flex-1 sm:flex sm:items-center sm:justify-between">
                            <div>
                                <p class="text-sm text-gray-700">
                                    Showing
                                    <span class="font-medium text-gray-900">{{ $assignments->firstItem() }}</span>
                                    to
                                    <span class="font-medium text-gray-900">{{ $assignments->lastItem() }}</span>
                                    of
                                    <span class="font-medium text-gray-900">{{ $assignments->total() }}</span>
                                    results
                                </p>
                            </div>
                            <div>
                                {{ $assignments->links() }}
                            </div>
                        </div>
                    </div>
                @endif
            @else
                <div class="px-6 py-16 text-center">
                    <div class="flex flex-col items-center">
                        <div class="bg-gray-100 rounded-full p-4 mb-4">
                            <i class="fas fa-inbox text-gray-400 text-2xl"></i>
                        </div>
                        <h3 class="text-lg font-medium text-gray-900 mb-2">No assignments found</h3>
                        <p class="text-sm text-gray-500 max-w-md">
                            @if(request()->hasAny(['search', 'status', 'service_id']))
                                No assignments match your filters. Try adjusting your search criteria.
                            @else
                                Start by assigning employees to Sites.
                            @endif
                        </p>
                        <a href="{{ route('services.index') }}" class="inline-flex items-center mt-4 px-4 py-2 bg-red-600 text-white text-sm font-medium rounded-lg hover:bg-red-700 transition-all duration-200 shadow-sm hover:shadow-md">
                            <i class="fas fa-plus mr-2"></i> Create First Assignment
                        </a>
                    </div>
                </div>
            @endif
        </div>
    </div>
</div>
@endsection