{% extends 'base.html' %}

{% block title %}Settings{% endblock %}

{% block content %}
<div class='content-header'>
    <div class='container-fluid'>
        <div class='row mb-2'>
            <div class='col-sm-6'>
                <h1 class='m-0'>Settings</h1>
            </div>
        </div>
    </div>
</div>

<div class='content'>
    <div class='container-fluid'>
        <div class='row'>
            <div class='col-lg-12'>
                <div class='card card-primary card-outline card-tabs'>
                    <div class='card-header p-0 pt-1 border-bottom-0'>
                        <ul class='nav nav-pills' id='custom-tabs-three-tab' role='tablist'
                            style="margin-left: 20px; margin-top: 10px;">
                            <li class='nav-item'>
                                <a class='nav-link active' id='subs-tab' data-toggle='pill' href='#subs' role='tab'
                                    aria-controls='subs' aria-selected='false'><i class="fas fa-link"></i>
                                    Subscriptions</a>
                            </li>
                            <li class='nav-item'>
                                <a class='nav-link' id='telegram-tab' data-toggle='pill' href='#telegram' role='tab'
                                    aria-controls='telegram' aria-selected='true'><i class="fab fa-telegram"></i>
                                    Telegram Bot</a>
                            </li>
                            <li class='nav-item'>
                                <a class='nav-link' id='port-tab' data-toggle='pill' href='#port' role='tab'
                                    aria-controls='port' aria-selected='false'><i class="fas fa-server"></i> Change
                                    Port</a>
                            </li>
                            <li class='nav-item'>
                                <a class='nav-link' id='sni-tab' data-toggle='pill' href='#sni' role='tab'
                                    aria-controls='sni' aria-selected='false'><i class="fas fa-shield-alt"></i> Change
                                    SNI</a>
                            </li>
                             <li class='nav-item'>
                                <a class='nav-link' id='obfs-tab' data-toggle='pill' href='#obfs' role='tab'
                                    aria-controls='obfs' aria-selected='false'><i class="fas fa-user-secret"></i>
                                    OBFS</a>
                            </li>
                            <li class='nav-item'>
                                <a class='nav-link' id='ip-tab' data-toggle='pill' href='#change_ip' role='tab'
                                    aria-controls='change_ip' aria-selected='false'><i class="fas fa-network-wired"></i>
                                    Change IP</a>
                            </li>
                            <li class='nav-item'>
                                <a class='nav-link' id='backup-tab' data-toggle='pill' href='#backup' role='tab'
                                    aria-controls='backup' aria-selected='false'><i class="fas fa-download"></i>
                                    Backup</a>
                            </li>
                            <li class='nav-item'>
                                <a class='nav-link' id='ip-limit-tab' data-toggle='pill' href='#ip-limit' role='tab'
                                    aria-controls='ip-limit' aria-selected='false'><i class="fas fa-user-slash"></i>
                                    IP Limit</a>
                            </li>
                             <li class='nav-item'>
                                <a class='nav-link' id='decoy-tab' data-toggle='pill' href='#decoy' role='tab'
                                    aria-controls='decoy' aria-selected='false'><i class="fas fa-mask"></i>
                                    Decoy Site</a>
                            </li>
                        </ul>
                    </div>
                    <div class='card-body' style="margin-left: 25px;">
                        <div class='tab-content' id='custom-tabs-three-tabContent'>

                            <!-- Subscriptions Tab -->
                            <div class='tab-pane fade show active' id='subs' role='tabpanel' aria-labelledby='subs-tab'>
                                <ul class='nav nav-tabs' id='subs-tabs' role='tablist'>
                                    <li class='nav-item'>
                                        <a class='nav-link active' id='normal-tab' data-toggle='tab' href='#normal' role='tab'
                                            aria-controls='normal' aria-selected='true'><strong>Normal</strong></a>
                                    </li>
                                    <li class='nav-item normal-sub-config-tab-li' style="display: none;"> <!-- Initially hidden -->
                                        <a class='nav-link' id='normal-sub-config-link-tab' data-toggle='tab' href='#normal-sub-config-content' role='tab'
                                            aria-controls='normal-sub-config-content' aria-selected='false'><strong>Configure</strong></a>
                                    </li>
                                </ul>
                                <div class='tab-content' id='subs-tabs-content'>
                                     <br>
                                    <!-- Normal Sub Service Control Tab -->
                                    <div class='tab-pane fade show active' id='normal' role='tabpanel' aria-labelledby='normal-tab'>
                                        <form id="normal_sub_service_form">
                                            <div class='form-group'>
                                                <label for='normal_domain'>Domain:</label>
                                                <input type='text' class='form-control' id='normal_domain'
                                                    placeholder='Enter Domain'>
                                                <div class="invalid-feedback">
                                                    Please enter a valid domain (without http:// or https://).
                                                </div>
                                            </div>
                                            <div class='form-group'>
                                                <label for='normal_port'>Port:</label>
                                                <input type='text' class='form-control' id='normal_port'
                                                    placeholder='Enter Port'>
                                                <div class="invalid-feedback">
                                                    Please enter a valid port number.
                                                </div>
                                            </div>
                                            <button id="normal_start" type='button' class='btn btn-success'>
                                               <span class="spinner-border spinner-border-sm" role="status" aria-hidden="true" style="display: none;"></span>
                                                Start
                                            </button>
                                            <button id="normal_stop" type='button' class='btn btn-danger'
                                                style="display: none;">Stop</button>
                                        </form>
                                    </div>
                                    <!-- Normal Sub Configuration Tab -->
                                    <div class='tab-pane fade' id='normal-sub-config-content' role='tabpanel' aria-labelledby='normal-sub-config-link-tab'>
                                        <form id="normal_sub_config_form">
                                            <div class='form-group'>
                                                <label for='normal_subpath_input'>Subpath:</label>
                                                <input type='text' class='form-control' id='normal_subpath_input'
                                                    placeholder='Enter subpath (e.g., mysub)'>
                                                <div class="invalid-feedback">
                                                    Please enter a valid subpath (alphanumeric characters only, e.g., mysub).
                                                </div>
                                            </div>
                                            <button id="normal_subpath_save_btn" type='button' class='btn btn-primary'>
                                               <span class="spinner-border spinner-border-sm" role="status" aria-hidden="true" style="display: none;"></span>
                                                Save Subpath
                                            </button>
                                        </form>
                                    </div>
                                </div>
                            </div>

                            <!-- Telegram Bot Tab -->
                            <div class='tab-pane fade' id='telegram' role='tabpanel' aria-labelledby='telegram-tab'>
                                <form id="telegram_form">
                                    <div class='form-group'>
                                        <label for='telegram_api_token'>API Token:</label>
                                        <input type='text' class='form-control' id='telegram_api_token'
                                            placeholder='Enter API Token'>
                                        <div class="invalid-feedback">
                                            Please enter a valid API Token.
                                        </div>
                                    </div>
                                    <div class='form-group'>
                                        <label for='telegram_admin_id'>Admin ID:</label>
                                        <input type='text' class='form-control' id='telegram_admin_id'
                                            placeholder='Enter Admin ID'>
                                        <div class="invalid-feedback">
                                            Please enter a valid Admin ID.
                                        </div>
                                    </div>
                                    <button id="telegram_start" type='button' class='btn btn-success'>
                                        <span class="spinner-border spinner-border-sm" role="status" aria-hidden="true" style="display: none;"></span>Start</button>
                                    <button id="telegram_stop" type='button' class='btn btn-danger'
                                        style="display: none;">Stop</button>
                                </form>
                            </div>

                            <!-- Port Tab -->
                            <div class='tab-pane fade' id='port' role='tabpanel' aria-labelledby='port-tab'>
                                <form id="port_form">
                                    <div class='form-group'>
                                        <label for='hysteria_port'>Port:</label>
                                        <input type='text' class='form-control' id='hysteria_port'
                                            placeholder='Enter Port'>
                                        <div class="invalid-feedback">
                                            Please enter a valid port number.
                                        </div>
                                    </div>
                                    <button id="port_change" type='button' class='btn btn-primary'>Save</button>
                                </form>
                            </div>

                            <!-- SNI Tab -->
                            <div class='tab-pane fade' id='sni' role='tabpanel' aria-labelledby='sni-tab'>
                                <form id="sni_form">
                                    <div class='form-group'>
                                        <label for='sni_domain'>Domain:</label>
                                        <input type='text' class='form-control' id='sni_domain'
                                            placeholder='Enter Domain'>
                                        <div class="invalid-feedback">
                                            Please enter a valid domain (without http:// or https://).
                                        </div>
                                    </div>
                                    <button id="sni_change" type='button' class='btn btn-primary'>Save</button>
                                </form>
                            </div>

                             <!-- OBFS Tab -->
                            <div class='tab-pane fade' id='obfs' role='tabpanel' aria-labelledby='obfs-tab'>
                                <div class="mb-3">
                                    <h5>OBFS Status</h5>
                                    <div id="obfs_status_container" class="p-3 border rounded">
                                        <span id="obfs_status_message">Loading OBFS status...</span>
                                    </div>
                                </div>
                                <button id="obfs_enable_btn" type='button' class='btn btn-success' style="display: none;">
                                    <span class="spinner-border spinner-border-sm" role="status" aria-hidden="true" style="display: none;"></span>
                                    Enable OBFS
                                </button>
                                <button id="obfs_disable_btn" type='button' class='btn btn-danger' style="display: none;">
                                     <span class="spinner-border spinner-border-sm" role="status" aria-hidden="true" style="display: none;"></span>
                                    Disable OBFS
                                </button>
                            </div>

                            <!-- Change IP Tab -->
                            <div class='tab-pane fade' id='change_ip' role='tabpanel' aria-labelledby='ip-tab'>
                                <form id="change_ip_form">
                                    <div class='form-group'>
                                        <label for='ipv4'>IPv4:</label>
                                        <input type='text' class='form-control' id='ipv4' placeholder='Enter IPv4 or Domain'
                                            value="{{ ipv4 or '' }}">
                                        <div class="invalid-feedback">
                                            Please enter a valid IPv4 address or Domain.
                                        </div>
                                    </div>
                                    <div class='form-group'>
                                        <label for='ipv6'>IPv6:</label>
                                        <input type='text' class='form-control' id='ipv6' placeholder='Enter IPv6 or Domain'
                                            value="{{ ipv6 or '' }}">
                                        <div class="invalid-feedback">
                                            Please enter a valid IPv6 address or Domain.
                                        </div>
                                    </div>
                                    <button id="ip_change" type='button' class='btn btn-primary'>Save</button>
                                </form>
                            </div>

                            <!-- Backup Tab -->
                            <div class='tab-pane fade' id='backup' role='tabpanel' aria-labelledby='backup-tab'>
                                <div class="form-group">
                                     <label for="backup_file">Upload Backup:</label>
                                     <input type="file" class="form-control-file" id="backup_file" accept=".zip">
                                 </div>
                                <button id="upload_backup" type='button' class='btn btn-success'>Upload</button>
                                <button id="download_backup" type='button' class='btn btn-primary'>Download Backup</button>

                                <div class="progress mt-3" style="display: none;">
                                  <div id="backup_progress_bar" class="progress-bar" role="progressbar" style="width: 0%;" aria-valuenow="0" aria-valuemin="0" aria-valuemax="100"></div>
                                </div>

                               <div id="backup_status" class="mt-2"></div>
                            </div>

                            <!-- IP Limit Tab -->
                            <div class='tab-pane fade' id='ip-limit' role='tabpanel' aria-labelledby='ip-limit-tab'>
                                <ul class='nav nav-tabs' id='ip-limit-tabs' role='tablist'>
                                    <li class='nav-item'>
                                        <a class='nav-link active' id='ip-limit-service-tab' data-toggle='tab' href='#ip-limit-service'
                                            role='tab' aria-controls='ip-limit-service'
                                            aria-selected='true'><strong>Service Control</strong></a>
                                    </li>
                                    <li class='nav-item ip-limit-config-tab-li' style="display: none;">
                                        <a class='nav-link' id='ip-limit-config-tab' data-toggle='tab' href='#ip-limit-config-content' role='tab'
                                            aria-controls='ip-limit-config-content' aria-selected='false'><strong>Configuration</strong></a>
                                    </li>
                                </ul>
                                <div class='tab-content' id='ip-limit-tabs-content'>
                                    <br>
                                    <!-- IP Limit Service Control Sub Tab -->
                                    <div class='tab-pane fade show active' id='ip-limit-service' role='tabpanel'
                                        aria-labelledby='ip-limit-service-tab'>
                                        <form id="ip_limit_service_form">
                                            <button id="ip_limit_start" type='button' class='btn btn-success'>
                                                <span class="spinner-border spinner-border-sm" role="status" aria-hidden="true" style="display: none;"></span>
                                                Start
                                            </button>
                                            <button id="ip_limit_stop" type='button' class='btn btn-danger' style="display: none;">Stop</button>
                                        </form>
                                    </div>

                                    <!-- IP Limit Configuration Sub Tab -->
                                    <div class='tab-pane fade' id='ip-limit-config-content' role='tabpanel' aria-labelledby='ip-limit-config-tab'>
                                        <form id="ip_limit_config_form">
                                            <div class='form-group'>
                                                <label for='block_duration'>Block Duration (seconds):</label>
                                                <input type='text' class='form-control' id='block_duration'
                                                    placeholder='Enter Block Duration' value="">
                                                <div class="invalid-feedback">
                                                    Please enter a valid positive number for block duration.
                                                </div>
                                            </div>
                                            <div class='form-group'>
                                                <label for='max_ips'>Max IPs per User:</label>
                                                <input type='text' class='form-control' id='max_ips'
                                                    placeholder='Enter Max IPs per User' value="">
                                                <div class="invalid-feedback">
                                                    Please enter a valid positive number for max IPs.
                                                </div>
                                            </div>
                                            <button id="ip_limit_change_config" type='button' class='btn btn-primary'>Save Configuration</button>
                                        </form>
                                    </div>
                                </div>
                            </div>
                             <!-- Decoy Site Tab -->
                            <div class='tab-pane fade' id='decoy' role='tabpanel' aria-labelledby='decoy-tab'>
                                <form id="decoy_form">
                                    <div class='form-group'>
                                        <label for='decoy_domain'>Domain:</label>
                                        <input type='text' class='form-control' id='decoy_domain'
                                            placeholder='Enter Domain'>
                                        <div class="invalid-feedback">
                                            Please enter a valid domain (without http:// or https://).
                                        </div>
                                    </div>
                                    <div class='form-group'>
                                        <label for='decoy_path'>Decoy Site Path:</label>
                                        <input type='text' class='form-control' id='decoy_path'
                                            placeholder='Enter Path to Decoy Site Files'>
                                        <div class="invalid-feedback">
                                            Please enter a valid directory path.
                                        </div>
                                    </div>
                                    <button id="decoy_setup" type='button' class='btn btn-success'>
                                        <span class="spinner-border spinner-border-sm" role="status" aria-hidden="true" style="display: none;"></span>
                                        Setup Decoy
                                    </button>
                                    <button id="decoy_stop" type='button' class='btn btn-danger' style="display: none;">Stop Decoy</button>
                                </form>

                                <div class="mt-4">
                                    <h5>Decoy Status</h5>
                                    <div id="decoy_status_container" class="p-3 border rounded">
                                        <div id="decoy_status_message">Loading status...</div>
                                    </div>
                                </div>
                            </div>

                        </div>
                    </div>
                    <!-- /.card -->
                </div>
            </div>
        </div>
    </div>
</div>
{% endblock %}

{% block javascripts %}

<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/sweetalert2@11"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/js/all.min.js"
    integrity="sha512-yFjZbTYRCJodnuyGlsKamNE/LlEaEA/3apsIOPr7/l+jCMq9Dn9x5qyuAGqgpr4/NBZ95p8yrl/sLhJvoazg=="
    crossorigin="anonymous" referrerpolicy="no-referrer"></script>

<script>
    $(document).ready(function () {

        initUI();
        fetchDecoyStatus();
        fetchObfsStatus();

        function isValidPath(path) {
            if (!path) return false;
            return path.trim() !== '';
        }

        function isValidDomain(domain) {
            if (!domain) return false;
            const lowerDomain = domain.toLowerCase();
            return !lowerDomain.startsWith("http://") && !lowerDomain.startsWith("https://");
        }

        function isValidPort(port) {
            if (!port) return false;
            return /^[0-9]+$/.test(port) && parseInt(port) > 0 && parseInt(port) <= 65535;
        }

        function isValidSubPath(subpath) {
            if (!subpath) return false;
            return /^[a-zA-Z0-9]+$/.test(subpath);
        }


        function isValidIPorDomain(input) {
            if (!input) return true;

            const ipV4Regex = /^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/;
            const ipV6Regex = /^(([0-9a-fA-F]{1,4}:){7,7}([0-9a-fA-F]{1,4}|:)|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:))$/;
            const domainRegex = /^(?!-)(?:[a-zA-Z\d-]{0,62}[a-zA-Z\d]\.){1,126}(?!\d+$)[a-zA-Z\d]{1,63}$/;
            const lowerInput = input.toLowerCase();

            if (ipV4Regex.test(input)) return true;
            if (ipV6Regex.test(input)) return true;
            if (domainRegex.test(lowerInput) && !lowerInput.startsWith("http://") && !lowerInput.startsWith("https://")) return true;

            return false;
        }

        function isValidPositiveNumber(value) {
            if (!value) return false;
            return /^[0-9]+$/.test(value) && parseInt(value) > 0;
        }

        function confirmAction(actionName, callback) {
            Swal.fire({
                title: `Are you sure?`,
                text: `Do you really want to ${actionName}?`,
                icon: "warning",
                showCancelButton: true,
                confirmButtonColor: "#3085d6",
                cancelButtonColor: "#d33",
                confirmButtonText: "Yes, proceed!",
                cancelButtonText: "Cancel"
            }).then((result) => {
                if (result.isConfirmed) {
                    callback();
                }
            });
        }

        function sendRequest(url, type, data, successMessage, buttonSelector, showReload = true, postSuccessCallback = null) {
            $.ajax({
                url: url,
                type: type,
                contentType: "application/json",
                data: data ? JSON.stringify(data) : null,
                beforeSend: function() {
                    if (buttonSelector) {
                        $(buttonSelector).prop('disabled', true);
                         $(buttonSelector + ' .spinner-border').show();
                    }
                },
                success: function (response) {
                    Swal.fire("Success!", successMessage, "success").then(() => {
                        if (showReload) {
                            location.reload();
                        } else {
                            if (postSuccessCallback) {
                                postSuccessCallback(response);
                            }
                        }
                    });
                    console.log("Success Response:", response);
                },
                error: function (xhr, status, error) {
                    let errorMessage = "Something went wrong.";
                    if (xhr.responseJSON && xhr.responseJSON.detail) {
                        errorMessage = xhr.responseJSON.detail;
                    }
                    Swal.fire("Error!", errorMessage, "error");
                    console.error("AJAX Error:", status, error, xhr.responseText);
                },
                complete: function() {
                    if (buttonSelector) {
                        $(buttonSelector).prop('disabled', false);
                        $(buttonSelector + ' .spinner-border').hide();
                    }
                }
            });
        }

        function validateForm(formId) {
            let isValid = true;
            $(`#${formId} .form-control`).each(function () {
                const input = $(this);
                const id = input.attr('id');
                let fieldValid = true;

                if (id === 'normal_domain' || id === 'sni_domain' || id === 'decoy_domain') {
                    fieldValid = isValidDomain(input.val());
                } else if (id === 'normal_port' || id === 'hysteria_port') {
                    fieldValid = isValidPort(input.val());
                } else if (id === 'normal_subpath_input') {
                    fieldValid = isValidSubPath(input.val());
                } else if (id === 'ipv4' || id === 'ipv6') {
                    fieldValid = (input.val().trim() === '') ? true : isValidIPorDomain(input.val());
                } else if (id === 'block_duration' || id === 'max_ips') {
                    fieldValid = isValidPositiveNumber(input.val());
                } else if (id === 'decoy_path') {
                    fieldValid = isValidPath(input.val());
                } else {
                    if (input.attr('placeholder') && input.attr('placeholder').includes('Enter') && !input.attr('id').startsWith('ipv')) {
                         fieldValid = input.val().trim() !== "";
                    }
                }

                if (!fieldValid) {
                    input.addClass('is-invalid');
                    isValid = false;
                } else {
                    input.removeClass('is-invalid');
                }
            });
            return isValid;
        }


        function initUI() {
            $.ajax({
                url: "{{ url_for('server_services_status_api') }}",
                type: "GET",
                success: function (data) {
                    updateServiceUI(data);
                },
                error: function (xhr, status, error) {
                    console.error("Failed to fetch service status:", error, xhr.responseText);
                     Swal.fire("Error!", "Could not fetch service statuses.", "error");
                }
            });

             $.ajax({
                url: "{{ url_for('get_ip_api') }}",
                type: "GET",
                success: function (data) {
                    $("#ipv4").val(data.ipv4 || "");
                    $("#ipv6").val(data.ipv6 || "");
                },
                error: function (xhr, status, error) {
                    console.error("Failed to fetch IP addresses:", error, xhr.responseText);
                }
            });

            $.ajax({
                url: "{{ url_for('get_port_api') }}",
                type: "GET",
                success: function (data) {
                    $("#hysteria_port").val(data.port || "");
                },
                error: function (xhr, status, error) {
                    console.error("Failed to fetch port:", error, xhr.responseText);
                }
            });

            $.ajax({
                url: "{{ url_for('get_sni_api') }}",
                type: "GET",
                success: function (data) {
                    $("#sni_domain").val(data.sni || "");
                },
                error: function (xhr, status, error) {
                    console.error("Failed to fetch SNI domain:", error, xhr.responseText);
                }
            });
        }

        function updateServiceUI(data) {
             const servicesMap = {
                "hysteria_telegram_bot": "#telegram_form",
                "hysteria_normal_sub": "#normal_sub_service_form",
                "hysteria_iplimit": "#ip-limit-service"
            };

            Object.keys(servicesMap).forEach(service => {
                let targetSelector = servicesMap[service];
                let isRunning = data[service];

                if (service === "hysteria_normal_sub") {
                    const $normalForm = $("#normal_sub_service_form");
                    const $normalFormGroups = $normalForm.find(".form-group");
                    const $normalStartBtn = $("#normal_start");
                    const $normalStopBtn = $("#normal_stop");
                    const $normalSubConfigTabLi = $(".normal-sub-config-tab-li");

                    if (isRunning) {
                        $normalFormGroups.hide();
                        $normalStartBtn.hide();
                        $normalStopBtn.show();
                        if ($normalForm.find(".alert-info").length === 0) {
                            $normalForm.prepend(`<div class='alert alert-info'>NormalSub service is running. You can stop it or configure its subpath.</div>`);
                        }
                        $normalSubConfigTabLi.show();
                        fetchNormalSubPath();
                    } else {
                        $normalFormGroups.show();
                        $normalStartBtn.show();
                        $normalStopBtn.hide();
                        $normalForm.find(".alert-info").remove();
                        $normalSubConfigTabLi.hide();
                        if ($('#normal-sub-config-link-tab').hasClass('active')) {
                            $('#normal-tab').tab('show');
                        }
                        $("#normal_subpath_input").val(""); 
                        $("#normal_subpath_input").removeClass('is-invalid');
                    }
                } else if (service === "hysteria_iplimit") {
                    const $ipLimitServiceForm = $("#ip_limit_service_form");
                    const $configTabLi = $(".ip-limit-config-tab-li");
                    if (isRunning) {
                       $("#ip_limit_start").hide();
                       $("#ip_limit_stop").show();
                       $configTabLi.show();
                       fetchIpLimitConfig();
                       if ($ipLimitServiceForm.find(".alert-info").length === 0) {
                           $ipLimitServiceForm.prepend(`<div class='alert alert-info'>IP-Limit service is running. You can stop it if needed.</div>`);
                       }
                    } else {
                       $("#ip_limit_start").show();
                       $("#ip_limit_stop").hide();
                       $configTabLi.hide();
                       $('#ip-limit-service-tab').tab('show');
                       $ipLimitServiceForm.find(".alert-info").remove();
                       $("#block_duration").val("");
                       $("#max_ips").val("");
                       $("#block_duration, #max_ips").removeClass('is-invalid');
                    }
                } else { 
                    const $formSelector = $(targetSelector);
                    if (isRunning) {
                        $formSelector.find(".form-group").hide();
                        $formSelector.find(".btn-success").hide();
                        $formSelector.find(".btn-danger").show();
                        if ($formSelector.find(".alert-info").length === 0) { 
                           $formSelector.prepend(`<div class='alert alert-info'>Service is running. You can stop it if needed.</div>`);
                        }
                    } else {
                        $formSelector.find(".form-group").show();
                        $formSelector.find(".btn-success").show();
                        $formSelector.find(".btn-danger").hide();
                        $formSelector.find(".alert-info").remove();
                    }
                }
            });
        }

        function fetchNormalSubPath() {
            $.ajax({
                url: "{{ url_for('normal_sub_get_subpath_api') }}",
                type: "GET",
                success: function (data) {
                    $("#normal_subpath_input").val(data.subpath || "");
                    if (data.subpath) { 
                        $("#normal_subpath_input").removeClass('is-invalid');
                    }
                },
                error: function (xhr, status, error) {
                    console.error("Failed to fetch NormalSub subpath:", error, xhr.responseText);
                    $("#normal_subpath_input").val("");
                }
            });
        }
        
        function fetchIpLimitConfig() {
            $.ajax({
                url: "{{ url_for('get_ip_limit_config_api') }}",
                type: "GET",
                success: function (data) {
                    $("#block_duration").val(data.block_duration || "");
                    $("#max_ips").val(data.max_ips || "");
                    if (data.block_duration) $("#block_duration").removeClass('is-invalid');
                    if (data.max_ips) $("#max_ips").removeClass('is-invalid');
                },
                error: function (xhr, status, error) {
                    console.error("Failed to fetch IP Limit config:", error, xhr.responseText);
                    $("#block_duration").val("");
                    $("#max_ips").val("");
                }
            });
        }

        function editNormalSubPath() {
            if (!validateForm('normal_sub_config_form')) return;
            const subpath = $("#normal_subpath_input").val();

            confirmAction("change the NormalSub subpath to '" + subpath + "'", function () {
                sendRequest(
                    "{{ url_for('normal_sub_edit_subpath_api') }}",
                    "PUT",
                    { subpath: subpath },
                    "NormalSub subpath updated successfully!",
                    "#normal_subpath_save_btn",
                    false, 
                    fetchNormalSubPath 
                );
            });
        }


        function setupDecoy() {
            if (!validateForm('decoy_form')) return;
            const domain = $("#decoy_domain").val();
            const path = $("#decoy_path").val();
            confirmAction("set up the decoy site", function () {
                sendRequest(
                    "{{ url_for('setup_decoy_api') }}",
                    "POST",
                    { domain: domain, decoy_path: path },
                    "Decoy site setup initiated successfully!",
                    "#decoy_setup",
                    false,
                    function() { setTimeout(fetchDecoyStatus, 1000); }
                );
            });
        }

        function stopDecoy() {
            confirmAction("stop the decoy site", function () {
                sendRequest(
                    "{{ url_for('stop_decoy_api') }}",
                    "POST",
                    null,
                    "Decoy site stop initiated successfully!",
                    "#decoy_stop",
                    false,
                    function() { setTimeout(fetchDecoyStatus, 1000); } 
                );
            });
        }

        function fetchDecoyStatus() {
            $.ajax({
                url: "{{ url_for('get_decoy_status_api') }}",
                type: "GET",
                success: function (data) {
                    updateDecoyStatusUI(data);
                },
                error: function (xhr, status, error) {
                    $("#decoy_status_message").html('<div class="alert alert-danger">Failed to fetch decoy status.</div>');
                    console.error("Failed to fetch decoy status:", error, xhr.responseText);
                }
            });
        }

        function updateDecoyStatusUI(data) {
            const $form = $("#decoy_form");
            const $formGroups = $form.find(".form-group");
            const $setupBtn = $("#decoy_setup");
            const $stopBtn = $("#decoy_stop");
            const $alertInfo = $form.find(".alert-info");

            if (data.active) {
                $formGroups.hide();
                $setupBtn.hide();
                $stopBtn.show();
                if ($alertInfo.length === 0) {
                    $form.prepend(`<div class='alert alert-info'>Decoy site is running. You can stop it if needed.</div>`);
                } else {
                    $alertInfo.text('Decoy site is running. You can stop it if needed.');
                }
                $("#decoy_status_message").html(`
                    <strong>Status:</strong> <span class="text-success">Active</span><br>
                    <strong>Path:</strong> ${data.path || 'N/A'}
                `);
            } else {
                $formGroups.show();
                $setupBtn.show();
                $stopBtn.hide();
                $alertInfo.remove();
                $("#decoy_status_message").html('<strong>Status:</strong> <span class="text-danger">Not Active</span>');
            }
        }


        function fetchObfsStatus() {
            $.ajax({
                url: "{{ url_for('check_obfs') }}", 
                type: "GET",
                success: function (data) {
                    updateObfsUI(data.obfs);
                },
                error: function (xhr, status, error) {
                    $("#obfs_status_message").html('<span class="text-danger">Failed to fetch OBFS status.</span>');
                    console.error("Failed to fetch OBFS status:", error, xhr.responseText);
                     $("#obfs_enable_btn").hide();
                    $("#obfs_disable_btn").hide();
                }
            });
        }

        function updateObfsUI(statusMessage) {
            $("#obfs_status_message").text(statusMessage);
            if (statusMessage === "OBFS is active.") {
                $("#obfs_enable_btn").hide();
                $("#obfs_disable_btn").show();
                $("#obfs_status_container").removeClass("border-danger border-warning").addClass("border-success");
            } else if (statusMessage === "OBFS is not active.") {
                $("#obfs_enable_btn").show();
                $("#obfs_disable_btn").hide();
                $("#obfs_status_container").removeClass("border-success border-danger").addClass("border-warning");
            } else {
                $("#obfs_enable_btn").hide();
                $("#obfs_disable_btn").hide();
                $("#obfs_status_container").removeClass("border-success border-warning").addClass("border-danger");
            }
        }

        function enableObfs() {
            confirmAction("enable OBFS", function () {
                sendRequest(
                    "{{ url_for('enable_obfs') }}",
                    "GET",
                    null,
                    "OBFS enabled successfully!",
                    "#obfs_enable_btn",
                    false, 
                    fetchObfsStatus 
                );
            });
        }

        function disableObfs() {
            confirmAction("disable OBFS", function () {
                sendRequest(
                    "{{ url_for('disable_obfs') }}",
                    "GET",
                    null,
                    "OBFS disabled successfully!",
                    "#obfs_disable_btn",
                    false, 
                    fetchObfsStatus 
                );
            });
        }


        function startTelegram() {
            if (!validateForm('telegram_form')) return;
            const apiToken = $("#telegram_api_token").val();
            const adminId = $("#telegram_admin_id").val();
            confirmAction("start the Telegram bot", function () {
                sendRequest(
                    "{{ url_for('telegram_start_api') }}",
                    "POST",
                    { token: apiToken, admin_id: adminId },
                    "Telegram bot started successfully!",
                    "#telegram_start"
                );
            });
        }

        function stopTelegram() {
            confirmAction("stop the Telegram bot", function () {
                sendRequest(
                    "{{ url_for('telegram_stop_api') }}",
                    "DELETE",
                    null,
                    "Telegram bot stopped successfully!",
                    "#telegram_stop"
                );
            });
        }

        function startNormal() {
            if (!validateForm('normal_sub_service_form')) return;
            const domain = $("#normal_domain").val();
            const port = $("#normal_port").val();
            confirmAction("start the normal subscription", function () {
                sendRequest(
                    "{{ url_for('normal_sub_start_api') }}",
                    "POST",
                    { domain: domain, port: port },
                    "Normal subscription started successfully!",
                    "#normal_start"
                );
            });
        }

        function stopNormal() {
            confirmAction("stop the normal subscription", function () {
                sendRequest(
                    "{{ url_for('normal_sub_stop_api') }}",
                    "DELETE",
                    null,
                    "Normal subscription stopped successfully!",
                    "#normal_stop"
                );
            });
        }

        function changePort() {
            if (!validateForm('port_form')) return;
            const port = $("#hysteria_port").val();
            const baseUrl = "{{ url_for('set_port_api', port='PORT_PLACEHOLDER') }}";
            const url = baseUrl.replace("PORT_PLACEHOLDER", port);
            confirmAction("change the port", function () {
                sendRequest(url, "GET", null, "Port changed successfully!", "#port_change");
            });
        }

        function changeSNI() {
            if (!validateForm('sni_form')) return;
            const domain = $("#sni_domain").val();
            const baseUrl = "{{ url_for('set_sni_api', sni='SNI_PLACEHOLDER') }}";
            const url = baseUrl.replace("SNI_PLACEHOLDER", domain);
            confirmAction("change the SNI", function () {
                sendRequest(url, "GET", null, "SNI changed successfully!", "#sni_change");
            });
        }

        function saveIP() {
            if (!validateForm('change_ip_form')) return;
            const ipv4 = $("#ipv4").val().trim() || null;
            const ipv6 = $("#ipv6").val().trim() || null;
            confirmAction("save the new IP settings", function () {
                sendRequest(
                    "{{ url_for('edit_ip_api') }}",
                    "POST",
                    { ipv4: ipv4, ipv6: ipv6 },
                    "IP settings saved successfully!",
                    "#ip_change"
                );
            });
        }

        function downloadBackup() {
            window.location.href = "{{ url_for('backup_api') }}";
             Swal.fire("Starting Download", "Your backup download should start shortly.", "info");
        }

        function uploadBackup() {
            var fileInput = document.getElementById('backup_file');
            var file = fileInput.files[0];

            if (!file) {
                Swal.fire("Error!", "Please select a file to upload.", "error");
                return;
            }
            if (!file.name.toLowerCase().endsWith('.zip')) {
               Swal.fire("Error!", "Only .zip files are allowed for restore.", "error");
               return;
            }

            confirmAction(`restore the system from the selected backup file (${file.name})`, function() {
                var formData = new FormData();
                formData.append('file', file);

                var progressBar = document.getElementById('backup_progress_bar');
                var progressContainer = progressBar.parentElement;
                var statusDiv = document.getElementById('backup_status');

                progressContainer.style.display = 'block';
                progressBar.style.width = '0%';
                progressBar.setAttribute('aria-valuenow', 0);
                statusDiv.innerText = 'Uploading...';
                statusDiv.className = 'mt-2';

                $.ajax({
                    url: "{{ url_for('restore_api') }}",
                    type: "POST",
                    data: formData,
                    processData: false,
                    contentType: false,
                    xhr: function() {
                        var xhr = new window.XMLHttpRequest();
                        xhr.upload.addEventListener("progress", function(evt) {
                            if (evt.lengthComputable) {
                                var percentComplete = Math.round((evt.loaded / evt.total) * 100);
                                progressBar.style.width = percentComplete + '%';
                                progressBar.setAttribute('aria-valuenow', percentComplete);
                                statusDiv.innerText = `Uploading... ${percentComplete}%`;
                            }
                        }, false);
                        return xhr;
                    },
                    success: function(response) {
                        progressBar.style.width = '100%';
                        progressBar.classList.add('bg-success');
                        statusDiv.innerText = 'Backup restored successfully! Reloading page...';
                        statusDiv.className = 'mt-2 text-success';
                        Swal.fire("Success!", "Backup restored successfully!", "success").then(() => {
                                location.reload();
                        });
                        console.log("Restore Success:", response);
                    },
                    error: function(xhr, status, error) {
                        progressBar.classList.add('bg-danger');
                        let detail = (xhr.responseJSON && xhr.responseJSON.detail) ? xhr.responseJSON.detail : 'Check console for details.';
                        statusDiv.innerText = `Error restoring backup: ${detail}`;
                        statusDiv.className = 'mt-2 text-danger';
                        Swal.fire("Error!", `Failed to restore backup. ${detail}`, "error");
                        console.error("Restore Error:", status, error, xhr.responseText);
                    },
                    complete: function() {
                       fileInput.value = '';
                    }
                });
            });
        }

        function startIPLimit() {
             confirmAction("start the IP Limit service", function () {
                sendRequest(
                    "{{ url_for('start_ip_limit_api') }}",
                    "POST",
                    null,
                    "IP Limit service started successfully!",
                    "#ip_limit_start"
                );
            });
        }

        function stopIPLimit() {
             confirmAction("stop the IP Limit service", function () {
                sendRequest(
                    "{{ url_for('stop_ip_limit_api') }}",
                    "POST",
                    null,
                    "IP Limit service stopped successfully!",
                    "#ip_limit_stop"
                );
            });
        }

        function configIPLimit() {
            if (!validateForm('ip_limit_config_form')) return;
            const blockDuration = $("#block_duration").val();
            const maxIps = $("#max_ips").val();
             confirmAction("save the IP Limit configuration", function () {
                sendRequest(
                    "{{ url_for('config_ip_limit_api') }}",
                    "POST",
                    { block_duration: parseInt(blockDuration), max_ips: parseInt(maxIps) },
                    "IP Limit configuration saved successfully!",
                    "#ip_limit_change_config",
                    false,
                    fetchIpLimitConfig
                );
            });
        }



        $("#telegram_start").on("click", startTelegram);
        $("#telegram_stop").on("click", stopTelegram);
        $("#normal_start").on("click", startNormal);
        $("#normal_stop").on("click", stopNormal);
        $("#normal_subpath_save_btn").on("click", editNormalSubPath);
        $("#port_change").on("click", changePort);
        $("#sni_change").on("click", changeSNI);
        $("#ip_change").on("click", saveIP);
        $("#download_backup").on("click", downloadBackup);
        $("#upload_backup").on("click", uploadBackup);
        $("#ip_limit_start").on("click", startIPLimit);
        $("#ip_limit_stop").on("click", stopIPLimit);
        $("#ip_limit_change_config").on("click", configIPLimit);
        $("#decoy_setup").on("click", setupDecoy);
        $("#decoy_stop").on("click", stopDecoy);
        $("#obfs_enable_btn").on("click", enableObfs);
        $("#obfs_disable_btn").on("click", disableObfs);


        $('#normal_domain, #sni_domain, #decoy_domain').on('input', function () {
            if (isValidDomain($(this).val())) {
                $(this).removeClass('is-invalid');
            } else if ($(this).val().trim() !== "") {
                $(this).addClass('is-invalid');
            } else {
                 $(this).removeClass('is-invalid');
            }
        });

        $('#normal_port, #hysteria_port').on('input', function () {
             if (isValidPort($(this).val())) {
                $(this).removeClass('is-invalid');
            } else if ($(this).val().trim() !== "") {
                $(this).addClass('is-invalid');
            } else {
                 $(this).removeClass('is-invalid');
            }
        });

        $('#normal_subpath_input').on('input', function () {
             if (isValidSubPath($(this).val())) {
                $(this).removeClass('is-invalid');
            } else if ($(this).val().trim() !== "") {
                $(this).addClass('is-invalid');
            } else {
                 $(this).removeClass('is-invalid');
            }
        });

        $('#ipv4, #ipv6').on('input', function () {
             if (isValidIPorDomain($(this).val()) || $(this).val().trim() === '') {
                 $(this).removeClass('is-invalid');
            } else {
                $(this).addClass('is-invalid');
            }
        });

        $('#telegram_api_token, #telegram_admin_id').on('input', function () {
            if ($(this).val().trim() !== "") {
                $(this).removeClass('is-invalid');
            } else {
                 $(this).addClass('is-invalid');
            }
        });
         $('#block_duration, #max_ips').on('input', function () {
            if (isValidPositiveNumber($(this).val())) {
                $(this).removeClass('is-invalid');
            } else if ($(this).val().trim() !== "") {
                $(this).addClass('is-invalid');
            } else {
                 $(this).removeClass('is-invalid');
            }
        });

        $('#decoy_path').on('input', function () {
            if (isValidPath($(this).val())) {
                $(this).removeClass('is-invalid');
            } else if ($(this).val().trim() !== "") {
                $(this).addClass('is-invalid');
            } else { 
                 $(this).addClass('is-invalid');
            }
        });

    });
</script>
{% endblock %}