{% extends "base.html" %}
{% block title %}Users - Queensway Europe Telco Portal{% endblock %}
{% block content %}
<div class="d-flex flex-wrap justify-content-between align-items-center mb-4 gap-2">
    <h2 class="mb-0 d-flex align-items-center gap-2">
        {% include "icons/people.svg" %} Users
    </h2>
    <button type="button" class="btn btn-success d-inline-flex align-items-center gap-2" onclick="openUserModal(null)">
        {% include "icons/plus-circle.svg" %} Add User
    </button>
</div>

<div class="row g-3 mb-4">
    <div class="col-6 col-lg-3">
        <div class="stat-card">
            <div class="stat-icon stat-icon-total">{% include "icons/collection.svg" %}</div>
            <div>
                <div class="stat-value">{{ users|length }}</div>
                <div class="stat-label">Total Users</div>
            </div>
        </div>
    </div>
    <div class="col-6 col-lg-3">
        <div class="stat-card">
            <div class="stat-icon stat-icon-verified">{% include "icons/shield-lock-fill.svg" %}</div>
            <div>
                <div class="stat-value">{{ admin_count }}</div>
                <div class="stat-label">Admins</div>
            </div>
        </div>
    </div>
    <div class="col-6 col-lg-3">
        <div class="stat-card">
            <div class="stat-icon stat-icon-headoffice">{% include "icons/people.svg" %}</div>
            <div>
                <div class="stat-value">{{ viewer_count }}</div>
                <div class="stat-label">Viewers</div>
            </div>
        </div>
    </div>
</div>

<div class="modern-card mb-0">
    <div class="table-toolbar d-flex flex-wrap align-items-center justify-content-between gap-2">
        <div class="text-muted small">Admins can add, edit and remove phones, internet connections and other user accounts. Viewers can only view.</div>
    </div>
    <div class="table-responsive">
        <table class="table table-hover align-middle mb-0 modern-table">
            <thead>
                <tr>
                    <th>Username</th>
                    <th>Role</th>
                    <th class="text-end">Actions</th>
                </tr>
            </thead>
            <tbody>
                {% for u in users %}
                <tr>
                    <td class="fw-semibold">{{ u.username }}{% if u.id == session.user_id %}<span class="text-muted fw-normal"> (you)</span>{% endif %}</td>
                    <td>
                        {% if u.role == "admin" %}
                        <span class="badge rounded-pill bg-success-subtle text-success-emphasis">Admin</span>
                        {% else %}
                        <span class="badge rounded-pill bg-secondary-subtle text-secondary-emphasis">Viewer</span>
                        {% endif %}
                    </td>
                    <td class="text-end">
                        <div class="d-inline-flex gap-1">
                            <button type="button" class="btn btn-icon btn-icon-primary" title="Edit"
                                onclick='openUserModal({{ u.to_dict() | tojson }})'>{% include "icons/pencil-square.svg" %}</button>
                            <button type="button" class="btn btn-icon btn-icon-danger" title="Delete"
                                onclick="deleteUser({{ u.id }}, {{ u.username | tojson }})" {% if u.id == session.user_id %}disabled{% endif %}>{% include "icons/trash.svg" %}</button>
                        </div>
                    </td>
                </tr>
                {% else %}
                <tr><td colspan="3" class="text-center text-muted py-5">No users yet.</td></tr>
                {% endfor %}
            </tbody>
        </table>
    </div>
</div>

<!-- Add / Edit modal -->
<div class="modal fade" id="userModal" tabindex="-1" aria-hidden="true">
    <div class="modal-dialog">
        <div class="modal-content">
            <form id="userForm">
                <div class="modal-header">
                    <h5 class="modal-title" id="userModalTitle">Edit User</h5>
                    <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
                </div>
                <div class="modal-body">
                    <input type="hidden" id="userId">
                    <div class="mb-3">
                        <label class="form-label">Username</label>
                        <input type="text" class="form-control" id="userUsername" required>
                    </div>
                    <div class="mb-3">
                        <label class="form-label">Password</label>
                        <input type="password" class="form-control" id="userPassword" autocomplete="new-password">
                        <div class="form-text" id="userPasswordHelp" hidden>Leave blank to keep the current password.</div>
                    </div>
                    <div class="mb-3">
                        <label class="form-label">Role</label>
                        <select class="form-select" id="userRole">
                            {% for option in role_options %}
                            <option value="{{ option }}">{{ option|capitalize }}</option>
                            {% endfor %}
                        </select>
                    </div>
                    <div id="userError" class="text-danger small"></div>
                </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Cancel</button>
                    <button type="submit" class="btn btn-primary">Save</button>
                </div>
            </form>
        </div>
    </div>
</div>
{% endblock %}

{% block scripts %}
<script>
const userModalEl = document.getElementById('userModal');
const userModal = new bootstrap.Modal(userModalEl);

function openUserModal(user) {
    document.getElementById('userForm').reset();
    document.getElementById('userError').textContent = '';
    const isEdit = !!user;
    document.getElementById('userPasswordHelp').hidden = !isEdit;
    document.getElementById('userPassword').required = !isEdit;

    if (isEdit) {
        document.getElementById('userModalTitle').textContent = 'Edit User';
        document.getElementById('userId').value = user.id;
        document.getElementById('userUsername').value = user.username || '';
        document.getElementById('userRole').value = user.role || 'viewer';
    } else {
        document.getElementById('userModalTitle').textContent = 'Add User';
        document.getElementById('userId').value = '';
        document.getElementById('userRole').value = 'viewer';
    }
    userModal.show();
}

document.getElementById('userForm').addEventListener('submit', async function (e) {
    e.preventDefault();
    const id = document.getElementById('userId').value;
    const payload = {
        username: document.getElementById('userUsername').value,
        password: document.getElementById('userPassword').value,
        role: document.getElementById('userRole').value,
    };
    const url = id ? `/api/users/${id}` : '/api/users';
    const method = id ? 'PUT' : 'POST';
    const resp = await fetch(url, {
        method,
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify(payload),
    });
    if (resp.ok) {
        window.location.reload();
    } else {
        const data = await resp.json().catch(() => ({}));
        document.getElementById('userError').textContent = data.error || 'Failed to save. Please check the fields.';
    }
});

async function deleteUser(id, username) {
    if (!confirm(`Delete user "${username}"? This cannot be undone.`)) return;
    const resp = await fetch(`/api/users/${id}`, { method: 'DELETE' });
    if (resp.ok) {
        window.location.reload();
    } else {
        const data = await resp.json().catch(() => ({}));
        alert(data.error || 'Failed to delete.');
    }
}
</script>
{% endblock %}