{% extends "admin/base.html" %}

{% block title %}User Management - Admin{% endblock %}

{% block admin_content %}
<div class="d-flex justify-content-between flex-wrap flex-md-nowrap align-items-center pb-2 mb-3 border-bottom">
    <h1 class="h2">Users</h1>
    <div class="btn-toolbar mb-2 mb-md-0">
        <button type="button" class="btn btn-sm btn-outline-secondary" onclick="location.reload()">
            <i class="fas fa-sync-alt"></i> Refresh
        </button>
    </div>
</div>

{% if users.items %}
<div class="card">
    <div class="card-header py-3">
        <h6 class="m-0 fw-bold text-primary">Users ({{ users.total }})</h6>
    </div>
    <div class="card-body p-0">
        <div class="table-responsive">
            <table class="table table-hover mb-0">
                <thead>
                    <tr>
                        <th style="width: 20%;">User</th>
                        <th style="width: 25%;">Email</th>
                        <th style="width: 10%;">Role</th>
                        <th style="width: 15%;">Posts</th>
                        <th style="width: 10%;">Status</th>
                        <th style="width: 10%;">Joined</th>
                        <th style="width: 10%;">Actions</th>
                    </tr>
                </thead>
                <tbody>
                    {% for user in users.items %}
                    <tr>
                        <td>
                            <div>
                                <a href="{{ url_for('admin.user_detail', user_id=user.id) }}" class="text-decoration-none fw-bold">
                                    {{ user.nickname }}
                                </a>
                            </div>
                        </td>
                        <td>
                            <small>{{ user.email }}</small>
                        </td>
                        <td>
                            {% if user.is_admin %}
                                <span class="badge bg-danger">Admin</span>
                            {% else %}
                                <span class="badge bg-primary">User</span>
                            {% endif %}
                        </td>
                        <td>
                            <span class="badge bg-secondary">{{ user.posts.count() }}</span>
                            {% if user.posts.filter_by(published=True).count() > 0 %}
                                <br><small class="text-success">({{ user.posts.filter_by(published=True).count() }} published)</small>
                            {% 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>
                            <small>{{ user.created_at.strftime('%Y-%m-%d') }}</small>
                        </td>
                        <td>
                            <div class="btn-group" role="group">
                                <a href="{{ url_for('admin.user_detail', user_id=user.id) }}" 
                                   class="btn btn-sm btn-outline-info" title="View Details">
                                    <i class="fas fa-eye"></i>
                                </a>
                                {% if not user.is_admin or current_user.id != user.id %}
                                    <button class="btn btn-sm btn-outline-warning" 
                                            title="{{ 'Deactivate User' if user.is_active else 'Activate User' }}"
                                            onclick="toggleUserStatus({{ user.id }}, '{{ user.nickname }}', {{ user.is_active|lower }})">
                                        <i class="fas fa-{{ 'toggle-on' if user.is_active else 'toggle-off' }}"></i>
                                    </button>
                                {% endif %}
                                {% if not user.is_admin and current_user.id != user.id %}
                                    <button class="btn btn-sm btn-outline-danger" 
                                            title="Delete User"
                                            onclick="confirmDeleteUser({{ user.id }}, '{{ user.nickname }}', {{ user.posts.count() }})">
                                        <i class="fas fa-trash"></i>
                                    </button>
                                {% endif %}
                            </div>
                        </td>
                    </tr>
                    {% endfor %}
                </tbody>
            </table>
        </div>
    </div>
</div>

<!-- Pagination -->
{% if users.pages > 1 %}
<nav aria-label="Users pagination" class="mt-4">
    <ul class="pagination justify-content-center">
        {% if users.has_prev %}
            <li class="page-item">
                <a class="page-link" href="{{ url_for('admin.users', page=users.prev_num) }}">Previous</a>
            </li>
        {% endif %}
        
        {% for page_num in users.iter_pages() %}
            {% if page_num %}
                {% if page_num != users.page %}
                    <li class="page-item">
                        <a class="page-link" href="{{ url_for('admin.users', page=page_num) }}">{{ page_num }}</a>
                    </li>
                {% else %}
                    <li class="page-item active">
                        <span class="page-link">{{ page_num }}</span>
                    </li>
                {% endif %}
            {% else %}
                <li class="page-item disabled">
                    <span class="page-link">…</span>
                </li>
            {% endif %}
        {% endfor %}
        
        {% if users.has_next %}
            <li class="page-item">
                <a class="page-link" href="{{ url_for('admin.users', page=users.next_num) }}">Next</a>
            </li>
        {% endif %}
    </ul>
</nav>
{% endif %}

{% else %}
<div class="card">
    <div class="card-body text-center py-5">
        <i class="fas fa-users fa-3x text-muted mb-3"></i>
        <h5 class="text-muted">No users found</h5>
        <p class="text-muted">No users have registered yet.</p>
    </div>
</div>
{% endif %}

<script>
    function toggleUserStatus(userId, nickname, currentStatus) {
        const action = currentStatus ? 'deactivate' : 'activate';
        const message = `Are you sure you want to ${action} user "${nickname}"?`;
        
        if (confirm(message)) {
            fetch(`/admin/users/${userId}/toggle-status`, {
                method: 'POST',
                headers: {
                    'Content-Type': 'application/json',
                }
            })
            .then(response => response.json())
            .then(data => {
                if (data.success) {
                    showAlert(data.message, 'success');
                    setTimeout(() => {
                        location.reload();
                    }, 1000);
                } else {
                    showAlert(data.message || 'An error occurred', 'danger');
                }
            })
            .catch(error => {
                console.error('Error:', error);
                showAlert('An error occurred while updating user status', 'danger');
            });
        }
    }

    function confirmDeleteUser(userId, nickname, postsCount) {
        let message = `Are you sure you want to delete user "${nickname}"?`;
        if (postsCount > 0) {
            message += `\n\nThis user has ${postsCount} post(s) that will be transferred to you as the admin.`;
        }
        message += '\n\nThis action cannot be undone.';
        
        if (confirm(message)) {
            fetch(`/admin/users/${userId}/delete`, {
                method: 'POST',
                headers: {
                    'Content-Type': 'application/json',
                }
            })
            .then(response => response.json())
            .then(data => {
                if (data.success) {
                    showAlert(data.message, 'success');
                    setTimeout(() => {
                        location.reload();
                    }, 1000);
                } else {
                    showAlert(data.message || 'An error occurred', 'danger');
                }
            })
            .catch(error => {
                console.error('Error:', error);
                showAlert('An error occurred while deleting user', 'danger');
            });
        }
    }

    function showAlert(message, type) {
        // Create alert container if it doesn't exist
        let alertContainer = document.querySelector('.alert-container');
        if (!alertContainer) {
            alertContainer = document.createElement('div');
            alertContainer.className = 'alert-container mt-3';
            document.querySelector('.container-fluid').insertBefore(
                alertContainer, 
                document.querySelector('.container-fluid').firstChild
            );
        }
        
        alertContainer.innerHTML = `
            <div class="alert alert-${type} alert-dismissible fade show" role="alert">
                ${message}
                <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
            </div>
        `;
    }
</script>

{% endblock %}