@extends('admin.layout')

@section('content')
<div class="flex justify-between items-center mb-6">
    <div>
        <h1 class="text-3xl font-bold text-gray-800">Completed Tests</h1>
        <p class="text-gray-600">View and manage all completed test sessions</p>
    </div>
    <div class="flex space-x-3">
        <button onclick="refreshCompletedTests()" class="bg-blue-600 hover:bg-blue-700 text-white px-4 py-2 rounded-lg flex items-center">
            <i class="fas fa-sync-alt mr-2"></i> Refresh
        </button>
    </div>
</div>

<!-- Filters -->
<div class="bg-white rounded-lg shadow p-6 mb-6">
    <form action="{{ route('admin.completed-tests.index') }}" method="GET" class="grid grid-cols-1 md:grid-cols-5 gap-4">
        <div>
            <label class="block text-sm font-medium text-gray-700 mb-1">Search</label>
            <input type="text" name="search" value="{{ request('search') }}" 
                   class="w-full border border-gray-300 rounded-lg px-3 py-2 focus:outline-none focus:ring-2 focus:ring-blue-500"
                   placeholder="Search by name or email...">
        </div>
        <div>
            <label class="block text-sm font-medium text-gray-700 mb-1">Subject</label>
            <select name="subject_id" class="w-full border border-gray-300 rounded-lg px-3 py-2 focus:outline-none focus:ring-2 focus:ring-blue-500">
                <option value="">All Subjects</option>
                @foreach($subjects as $subject)
                    <option value="{{ $subject->id }}" {{ request('subject_id') == $subject->id ? 'selected' : '' }}>
                        {{ $subject->name }}
                    </option>
                @endforeach
            </select>
        </div>
        <div>
            <label class="block text-sm font-medium text-gray-700 mb-1">Level</label>
            <select name="level_id" class="w-full border border-gray-300 rounded-lg px-3 py-2 focus:outline-none focus:ring-2 focus:ring-blue-500">
                <option value="">All Levels</option>
                @foreach($levels as $level)
                    <option value="{{ $level->id }}" {{ request('level_id') == $level->id ? 'selected' : '' }}>
                        {{ $level->name }}
                    </option>
                @endforeach
            </select>
        </div>
        <div>
            <label class="block text-sm font-medium text-gray-700 mb-1">Date From</label>
            <input type="date" name="date_from" value="{{ request('date_from') }}" 
                   class="w-full border border-gray-300 rounded-lg px-3 py-2 focus:outline-none focus:ring-2 focus:ring-blue-500">
        </div>
        <div>
            <label class="block text-sm font-medium text-gray-700 mb-1">Date To</label>
            <input type="date" name="date_to" value="{{ request('date_to') }}" 
                   class="w-full border border-gray-300 rounded-lg px-3 py-2 focus:outline-none focus:ring-2 focus:ring-blue-500">
        </div>
        <div class="flex items-end">
            <button type="submit" class="bg-blue-600 hover:bg-blue-700 text-white px-4 py-2 rounded-lg w-full">
                <i class="fas fa-filter mr-2"></i> Apply Filters
            </button>
        </div>
    </form>
</div>

<!-- Completed Tests Table -->
<div class="bg-white rounded-lg shadow overflow-hidden">
    <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">Student</th>
                    <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Test</th>
                    <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Subject</th>
                    <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Level</th>
                    <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Score</th>
                    <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Time Spent</th>
                    <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Completed</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($completedTests as $session)
                <tr class="hover:bg-gray-50">
                    <td class="px-6 py-4 whitespace-nowrap">
                        <div class="flex items-center">
                            <div class="flex-shrink-0 h-10 w-10 bg-blue-500 rounded-full flex items-center justify-center text-white font-bold">
                                {{ substr($session->user->first_name, 0, 1) }}{{ substr($session->user->last_name, 0, 1) }}
                            </div>
                            <div class="ml-4">
                                <div class="text-sm font-medium text-gray-900">
                                    {{ $session->user->first_name }} {{ $session->user->last_name }}
                                </div>
                                <div class="text-sm text-gray-500">{{ $session->user->email }}</div>
                            </div>
                        </div>
                    </td>
                    <td class="px-6 py-4 whitespace-nowrap">
                        <div class="text-sm font-medium text-gray-900">{{ $session->test->title }}</div>
                        <div class="text-sm text-gray-500">ID: {{ $session->test->id }}</div>
                    </td>
                    <td class="px-6 py-4 whitespace-nowrap">
                        <div class="text-sm text-gray-900">{{ $session->test->subject->name }}</div>
                    </td>
                    <td class="px-6 py-4 whitespace-nowrap">
                        <span class="px-2 inline-flex text-xs leading-5 font-semibold rounded-full 
                            {{ $session->test->competitionLevel->level == 1 ? 'bg-green-100 text-green-800' : 
                               ($session->test->competitionLevel->level == 2 ? 'bg-blue-100 text-blue-800' : 
                               'bg-purple-100 text-purple-800') }}">
                            {{ $session->test->competitionLevel->name }}
                        </span>
                    </td>
                    <td class="px-6 py-4 whitespace-nowrap">
                        <div class="text-sm font-bold text-gray-900">{{ $session->total_score }}</div>
                        <div class="text-xs text-gray-500">points</div>
                    </td>
                    <td class="px-6 py-4 whitespace-nowrap text-sm text-gray-900">
                        @php
                            $hours = floor($session->time_spent / 3600);
                            $minutes = floor(($session->time_spent % 3600) / 60);
                            $seconds = $session->time_spent % 60;
                        @endphp
                        @if($hours > 0)
                            {{ $hours }}h {{ $minutes }}m
                        @elseif($minutes > 0)
                            {{ $minutes }}m {{ $seconds }}s
                        @else
                            {{ $seconds }}s
                        @endif
                    </td>
                    <td class="px-6 py-4 whitespace-nowrap text-sm text-gray-500">
                        {{ $session->created_at->format('M j, Y H:i') }}
                    </td>
                    <td class="px-6 py-4 whitespace-nowrap text-sm font-medium">
                        <div class="flex space-x-2">
                            <a href="{{ route('admin.completed-tests.show', $session) }}" 
                               class="text-blue-600 hover:text-blue-900" title="View Details">
                                <i class="fas fa-eye"></i>
                            </a>
                            <form action="{{ route('admin.completed-tests.delete', $session) }}" method="POST" class="inline">
								@csrf
								@method('DELETE')
								<input type="hidden" name="confirm" id="confirm_{{ $session->id }}" value="">
								<button type="button" 
										class="text-red-600 hover:text-red-900 delete-btn"
										data-session-id="{{ $session->id }}"
										data-session-name="{{ $session->user->first_name }} {{ $session->user->last_name }} - {{ $session->test->title }}">
									<i class="fas fa-trash"></i>
								</button>
							</form>
                        </div>
                    </td>
                </tr>
                @empty
                <tr>
                    <td colspan="8" class="px-6 py-4 text-center text-sm text-gray-500">
                        <div class="flex flex-col items-center justify-center py-8">
                            <i class="fas fa-clipboard-list text-gray-300 text-4xl mb-3"></i>
                            <p class="text-gray-500">No completed tests found.</p>
                            @if(request()->anyFilled(['search', 'subject_id', 'level_id', 'date_from', 'date_to']))
                                <p class="text-sm text-gray-400 mt-1">Try adjusting your filters</p>
                            @endif
                        </div>
                    </td>
                </tr>
                @endforelse
            </tbody>
        </table>
    </div>
    
    <!-- Pagination -->
    @if($completedTests->hasPages())
    <div class="bg-white px-4 py-3 border-t border-gray-200 sm:px-6">
        {{ $completedTests->links() }}
    </div>
    @endif
</div>

<!-- Stats Overview -->
<div class="grid grid-cols-1 md:grid-cols-4 gap-6 mt-6">
    <div class="bg-white rounded-lg shadow p-6">
        <div class="flex items-center">
            <div class="p-3 rounded-full bg-blue-100 text-blue-600">
                <i class="fas fa-check-circle text-xl"></i>
            </div>
            <div class="ml-4">
                <h3 class="text-lg font-semibold text-gray-600">Total Completed</h3>
                <p class="text-3xl font-bold text-gray-800">{{ $completedTests->total() }}</p>
            </div>
        </div>
    </div>
    <div class="bg-white rounded-lg shadow p-6">
        <div class="flex items-center">
            <div class="p-3 rounded-full bg-green-100 text-green-600">
                <i class="fas fa-trophy text-xl"></i>
            </div>
            <div class="ml-4">
                <h3 class="text-lg font-semibold text-gray-600">Avg Score</h3>
                <p class="text-3xl font-bold text-gray-800">
                    @if($completedTests->isNotEmpty())
                        {{ number_format($completedTests->avg('total_score'), 1) }}
                    @else
                        0
                    @endif
                </p>
            </div>
        </div>
    </div>
    <div class="bg-white rounded-lg shadow p-6">
        <div class="flex items-center">
            <div class="p-3 rounded-full bg-purple-100 text-purple-600">
                <i class="fas fa-clock text-xl"></i>
            </div>
            <div class="ml-4">
                <h3 class="text-lg font-semibold text-gray-600">Avg Time</h3>
                <p class="text-3xl font-bold text-gray-800">
                    @if($completedTests->isNotEmpty())
                        {{ number_format($completedTests->avg('time_spent') / 60, 1) }} min
                    @else
                        0
                    @endif
                </p>
            </div>
        </div>
    </div>
    <div class="bg-white rounded-lg shadow p-6">
        <div class="flex items-center">
            <div class="p-3 rounded-full bg-yellow-100 text-yellow-600">
                <i class="fas fa-users text-xl"></i>
            </div>
            <div class="ml-4">
                <h3 class="text-lg font-semibold text-gray-600">Unique Students</h3>
                <p class="text-3xl font-bold text-gray-800">{{ $completedTests->pluck('user_id')->unique()->count() }}</p>
            </div>
        </div>
    </div>
</div>

<!-- Delete Confirmation Modal -->
<div id="deleteModal" class="fixed inset-0 bg-black bg-opacity-50 flex items-center justify-center z-50 hidden">
    <div class="bg-white rounded-lg p-6 w-full max-w-md mx-4">
        <div class="flex justify-between items-center mb-4">
            <h3 class="text-xl font-bold text-gray-800">Confirm Delete</h3>
            <button id="closeModal" class="text-gray-500 hover:text-gray-700">
                <i class="fas fa-times"></i>
            </button>
        </div>
        <p class="text-gray-700 mb-4">Are you sure you want to delete the test session for <span id="confirmName" class="font-semibold"></span>? This action cannot be undone.</p>
        <div class="mb-4">
            <label for="confirmInput" class="block text-sm font-medium text-gray-700 mb-1">To confirm, type "delete"</label>
            <input type="text" id="confirmInput" class="w-full border border-gray-300 rounded-lg px-3 py-2 focus:outline-none focus:ring-2 focus:ring-red-500" placeholder="Type 'delete' here">
            <p id="confirmError" class="text-red-500 text-sm mt-1 hidden">Please type "delete" to confirm</p>
        </div>
        <div class="flex justify-end space-x-3">
            <button id="cancelDelete" class="bg-gray-300 hover:bg-gray-400 text-gray-800 px-4 py-2 rounded-lg">Cancel</button>
            <button id="confirmDelete" class="bg-red-600 hover:bg-red-700 text-white px-4 py-2 rounded-lg disabled:opacity-50">Delete</button>
        </div>
    </div>
</div>

<script>
function refreshCompletedTests() {
    window.location.reload();
}

// Delete confirmation modal
document.addEventListener('DOMContentLoaded', function() {
    const deleteBtns = document.querySelectorAll('.delete-btn');
    const modal = document.getElementById('deleteModal');
    const closeModal = document.getElementById('closeModal');
    const cancelDelete = document.getElementById('cancelDelete');
    const confirmDelete = document.getElementById('confirmDelete');
    const confirmInput = document.getElementById('confirmInput');
    const confirmError = document.getElementById('confirmError');
    const confirmName = document.getElementById('confirmName');
    let currentSessionId = '';

    deleteBtns.forEach(btn => {
        btn.addEventListener('click', function() {
            currentSessionId = this.closest('form').querySelector('input[name="session_id"]')?.value || this.closest('form').action.split('/').pop();
            confirmName.textContent = this.getAttribute('data-session-name');
            modal.classList.remove('hidden');
            confirmInput.value = '';
            confirmError.classList.add('hidden');
        });
    });

    closeModal.addEventListener('click', () => {
        modal.classList.add('hidden');
    });

    cancelDelete.addEventListener('click', () => {
        modal.classList.add('hidden');
    });

    confirmInput.addEventListener('input', function() {
        if (this.value === 'delete') {
            confirmDelete.classList.remove('disabled');
            confirmError.classList.add('hidden');
        } else {
            confirmDelete.classList.add('disabled');
            if (this.value.length > 0) {
                confirmError.classList.remove('hidden');
            }
        }
    });

    confirmDelete.addEventListener('click', function() {
		if (confirmInput.value === 'delete') {
			const form = document.querySelector(`form[action*="/admin/completed-tests/${currentSessionId}"]`);
			if (form) {
				// Set the confirmation value in the hidden input
				const confirmField = form.querySelector('input[name="confirm"]');
				if (confirmField) {
					confirmField.value = 'delete';
				}
				form.submit();
			}
		}
	});

    // Close modal on outside click
    modal.addEventListener('click', function(e) {
        if (e.target === modal) {
            modal.classList.add('hidden');
        }
    });

    // Close modal on Escape key
    document.addEventListener('keydown', function(e) {
        if (e.key === 'Escape') {
            modal.classList.add('hidden');
        }
    });
});
</script>
@endsection