@extends('layouts.app')

@section('content')
<div class="container-fluid">
    <div class="row">
        <div class="col-md-12">
            <div class="card">
                <div class="card-header d-flex justify-content-between align-items-center">
                    <h4 class="mb-0">Users Management</h4>
                    {{-- @can('manage-users') --}}
                    <a href="{{ route('users.create') }}" class="btn btn-primary">
                        <i class="fas fa-plus"></i> Add New User
                    </a>
                    {{-- @endcan --}}
                </div>
                <div class="card-body">
                    <!-- Filters -->
                    <div class="row mb-4">
                        <div class="col-md-4">
                            <form id="searchForm" class="d-flex">
                                <input type="text" name="search" class="form-control me-2" 
                                       placeholder="Search by username, email or phone..." value="{{ request('search') }}">
                                <button type="submit" class="btn btn-outline-primary">
                                    <i class="fas fa-search"></i>
                                </button>
                            </form>
                        </div>
                        <div class="col-md-3">
                            <select class="form-select" id="userTypeFilter">
                                <option value="">All Roles</option>
                                <option value="admin" {{ request('user_type') == 'admin' ? 'selected' : '' }}>Administrator</option>
                                <option value="lms_manager" {{ request('user_type') == 'lms_manager' ? 'selected' : '' }}>LMS Manager</option>
                                <option value="teacher" {{ request('user_type') == 'teacher' ? 'selected' : '' }}>Teacher</option>
                                <option value="student" {{ request('user_type') == 'student' ? 'selected' : '' }}>Student</option>
                            </select>
                        </div>
                        <div class="col-md-3">
                            <select class="form-select" id="statusFilter">
                                <option value="">All Status</option>
                                <option value="1" {{ request('is_active') === '1' ? 'selected' : '' }}>Active</option>
                                <option value="0" {{ request('is_active') === '0' ? 'selected' : '' }}>Inactive</option>
                            </select>
                        </div>
                        <div class="col-md-2">
                            <a href="{{ route('users.index') }}" class="btn btn-outline-secondary w-100">
                                <i class="fas fa-refresh"></i> Reset
                            </a>
                        </div>
                    </div>

                    <!-- Users Table -->
                    <div class="table-responsive">
                        <table class="table table-bordered table-striped table-hover">
                            <thead class="table-dark">
                                <tr>
                                    <th>
                                        <input type="checkbox" id="selectAll">
                                    </th>
                                    <th>User</th>
                                    <th>Role</th>
                                    <th>Phone</th>
                                    <th>Last Login</th>
                                    <th>Status</th>
                                    <th>Actions</th>
                                </tr>
                            </thead>
                            <tbody id="usersTable">
                                @forelse($users as $user)
                                    <tr id="user-{{ $user->id }}">
                                        <td>
                                            <input type="checkbox" class="user-checkbox" value="{{ $user->id }}" 
                                                {{ $user->id === auth()->id() ? 'disabled' : '' }}>
                                        </td>
                                        <td>
                                            <div class="d-flex align-items-center">
                                                <div class="avatar-sm me-3">
                                                    <div class="avatar-title bg-primary rounded-circle text-white">
                                                        {{ substr($user->username, 0, 1) }}
                                                    </div>
                                                </div>
                                                <div>
                                                    <h6 class="mb-0">{{ $user->username }}</h6>
                                                    <small class="text-muted">{{ $user->email }}</small>
                                                    @if($user->id === auth()->id())
                                                        <span class="badge bg-info ms-1">You</span>
                                                    @endif
                                                </div>
                                            </div>
                                        </td>
                                        <td>
                                            <span class="badge bg-{{ $user->getRoleColorAttribute() }}">
                                                {{ $user->role_name }}
                                            </span>
                                            @if($user->profile)
                                                <br><small class="text-muted">Profile Created</small>
                                            @endif
                                        </td>
                                        <td>
                                            {{ $user->phone ?? 'N/A' }}
                                        </td>
                                        <td>
                                            @if($user->last_login_at)
                                                <span title="{{ $user->last_login_at->format('M d, Y H:i') }}">
                                                    {{ $user->last_login_at->diffForHumans() }}
                                                </span>
                                            @else
                                                <span class="text-muted">Never</span>
                                            @endif
                                        </td>
                                        <td>
                                            @if($user->is_active)
                                                <span class="badge bg-success">Active</span>
                                            @else
                                                <span class="badge bg-secondary">Inactive</span>
                                            @endif
                                        </td>
                                        <td>
                                            <div class="btn-group btn-group-sm">
                                                <a href="{{ route('users.show', $user->id) }}" 
                                                   class="btn btn-info" title="View">
                                                    <i class="fas fa-eye"></i>
                                                </a>
                                                {{-- @can('manage-users') --}}
                                                <a href="{{ route('users.edit', $user->id) }}" 
                                                   class="btn btn-warning" title="Edit">
                                                    <i class="fas fa-edit"></i>
                                                </a>
                                                {{-- @endcan --}}
                                                
                                                {{-- @if($user->profile)
                                                <a href="{{ route('users.profile', $user->id) }}" 
                                                   class="btn btn-primary" title="View Profile">
                                                    <i class="fas fa-user"></i>
                                                </a>
                                                @endif --}}

                                                @if($user->id !== auth()->id())
                                                <form action="{{ route('users.toggle-status', $user->id) }}" 
                                                      method="POST" class="d-inline">
                                                    @csrf
                                                    <button type="submit" class="btn btn-{{ $user->is_active ? 'warning' : 'success' }}" 
                                                            title="{{ $user->is_active ? 'Deactivate' : 'Activate' }}">
                                                        <i class="fas fa-{{ $user->is_active ? 'pause' : 'play' }}"></i>
                                                    </button>
                                                </form>
                                                {{-- @can('manage-users') --}}
                                                <button class="btn btn-danger delete-user" 
                                                        data-id="{{ $user->id }}" 
                                                        data-name="{{ $user->username }}"
                                                        title="Delete"
                                                        {{ $user->id === auth()->id() ? 'disabled' : '' }}>
                                                    <i class="fas fa-trash"></i>
                                                </button>
                                                {{-- @endcan --}}
                                                @endif
                                            </div>
                                        </td>
                                    </tr>
                                @empty
                                    <tr>
                                        <td colspan="7" class="text-center">No users found.</td>
                                    </tr>
                                @endforelse
                            </tbody>
                        </table>
                    </div>

                    <!-- Bulk Actions -->
                    @can('manage-users')
                    <div class="row mb-3">
                        <div class="col-md-12">
                            <div class="btn-group">
                                <button type="button" class="btn btn-outline-success btn-sm" id="bulkActivateBtn">
                                    <i class="fas fa-play"></i> Activate Selected
                                </button>
                                <button type="button" class="btn btn-outline-warning btn-sm" id="bulkDeactivateBtn">
                                    <i class="fas fa-pause"></i> Deactivate Selected
                                </button>
                            </div>
                        </div>
                    </div>
                    @endcan

                    <!-- Pagination -->
                    <div class="d-flex justify-content-between align-items-center mt-3">
                        <div>
                            Showing {{ $users->firstItem() }} to {{ $users->lastItem() }} of {{ $users->total() }} entries
                        </div>
                        <div id="paginationLinks">
                            {{ $users->links() }}
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>

<!-- Delete Confirmation Modal -->
<div class="modal fade" id="deleteModal" tabindex="-1">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title">Confirm Delete</h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
            </div>
            <div class="modal-body">
                <p>Are you sure you want to delete user "<span id="userName"></span>"?</p>
                <p class="text-danger">This action cannot be undone and will remove all associated data.</p>
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Cancel</button>
                <button type="button" class="btn btn-danger" id="confirmDelete">Delete</button>
            </div>
        </div>
    </div>
</div>
@endsection

@push('scripts')
<script>
$(document).ready(function() {
    let deleteUserId = null;

    // AJAX Search and Filter
    $('#searchForm').on('submit', function(e) {
        e.preventDefault();
        performSearch();
    });

    $('#userTypeFilter, #statusFilter').on('change', function() {
        performSearch();
    });

    function performSearch() {
        const searchTerm = $('input[name="search"]').val();
        const userType = $('#userTypeFilter').val();
        const status = $('#statusFilter').val();
        
        $.ajax({
            url: '{{ route("users.index") }}',
            type: 'GET',
            data: { 
                search: searchTerm,
                user_type: userType,
                is_active: status
            },
            success: function(response) {
                const html = $(response).find('#usersTable').html();
                const pagination = $(response).find('#paginationLinks').html();
                
                $('#usersTable').html(html);
                $('#paginationLinks').html(pagination);
                attachEventHandlers();
            },
            error: function(xhr) {
                alert('Error searching users');
            }
        });
    }

    // Select All functionality
    $('#selectAll').on('change', function() {
        $('.user-checkbox:not(:disabled)').prop('checked', this.checked);
    });

    // Bulk Actions
    $('#bulkActivateBtn').on('click', function() {
        const selectedIds = getSelectedUserIds();
        if (selectedIds.length === 0) {
            alert('Please select at least one user.');
            return;
        }
        performBulkAction('activate', selectedIds);
    });

    $('#bulkDeactivateBtn').on('click', function() {
        const selectedIds = getSelectedUserIds();
        if (selectedIds.length === 0) {
            alert('Please select at least one user.');
            return;
        }
        performBulkAction('deactivate', selectedIds);
    });

    function getSelectedUserIds() {
        const selectedIds = [];
        $('.user-checkbox:checked:not(:disabled)').each(function() {
            selectedIds.push($(this).val());
        });
        return selectedIds;
    }

    function performBulkAction(action, userIds) {
        $.ajax({
            url: `/users/bulk-${action}`,
            type: 'POST',
            data: {
                _token: '{{ csrf_token() }}',
                user_ids: userIds
            },
            success: function(response) {
                showAlert(`Users ${action}d successfully!`, 'success');
                performSearch(); // Refresh the table
            },
            error: function(xhr) {
                alert(`Error ${action}ing users`);
            }
        });
    }

    // Delete User
    function attachEventHandlers() {
        $('.delete-user').on('click', function() {
            if ($(this).is(':disabled')) return;
            
            deleteUserId = $(this).data('id');
            const userName = $(this).data('name');
            
            $('#userName').text(userName);
            $('#deleteModal').modal('show');
        });
    }

    $('#confirmDelete').on('click', function() {
        if (!deleteUserId) return;

        $.ajax({
            url: `/users/${deleteUserId}`,
            type: 'DELETE',
            data: {
                _token: '{{ csrf_token() }}'
            },
            success: function(response) {
                $('#user-' + deleteUserId).remove();
                $('#deleteModal').modal('hide');
                showAlert('User deleted successfully!', 'success');
                
                // Reload the table if empty
                if ($('#usersTable tr').length === 1) {
                    performSearch();
                }
            },
            error: function(xhr) {
                let message = 'Error deleting user';
                if (xhr.responseJSON && xhr.responseJSON.message) {
                    message = xhr.responseJSON.message;
                }
                showAlert(message, 'error');
                $('#deleteModal').modal('hide');
            }
        });
    });

    function showAlert(message, type) {
        const alertClass = type === 'success' ? 'alert-success' : 'alert-danger';
        const alertHtml = `
            <div class="alert ${alertClass} alert-dismissible fade show" role="alert">
                ${message}
                <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
            </div>
        `;
        $('.card-body').prepend(alertHtml);
        
        setTimeout(() => {
            $('.alert').alert('close');
        }, 5000);
    }

    // Attach event handlers on page load
    attachEventHandlers();
});
</script>

<style>
.avatar-sm {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}
.avatar-title {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}
</style>
@endpush