/**
 * AKSRT Order Center — v2.0
 *
 * 前台订单中心交互：
 * - 支付 / 取消 / 售后：操作成功后局部刷新订单卡片，不再整页 reload
 * - 倒计时
 * - Toast 通知替代 window.alert
 *
 * @package AKSRT
 */

(function () {
    "use strict";

    var page = document.querySelector("[data-aksrt-order-center]");
    if (!page || !window.aksrtData) {
        return;
    }

    /* ── Toast helper ── */
    function showToast(text, duration) {
        duration = duration || 2500;
        var container = document.getElementById("toast-container");
        if (!container) {
            container = document.createElement("div");
            container.id = "toast-container";
            container.style.cssText = "position:fixed;bottom:24px;right:24px;z-index:99999;display:flex;flex-direction:column-reverse;gap:10px;pointer-events:none;";
            document.body.appendChild(container);
        }
        var toast = document.createElement("div");
        toast.style.cssText = "pointer-events:auto;display:flex;align-items:center;gap:8px;padding:10px 20px;background:rgba(0,0,0,0.78);backdrop-filter:blur(12px);color:#fff;font-family:var(--font-ui);font-size:14px;font-weight:500;border-radius:100px;box-shadow:0 4px 20px rgba(0,0,0,0.2);animation:aksrtToastIn 0.35s cubic-bezier(0.22,1,0.36,1) forwards;white-space:nowrap;";
        toast.textContent = text;
        container.appendChild(toast);
        setTimeout(function () {
            toast.style.animation = "aksrtToastOut 0.4s ease forwards";
            setTimeout(function () { if (toast.parentNode) toast.parentNode.removeChild(toast); }, 400);
        }, duration);
    }

    // Inject toast keyframes if not present
    if (!document.getElementById("aksrt-toast-keyframes")) {
        var style = document.createElement("style");
        style.id = "aksrt-toast-keyframes";
        style.textContent = "@keyframes aksrtToastIn{0%{opacity:0;transform:translateY(16px) scale(0.92)}100%{opacity:1;transform:translateY(0) scale(1)}}@keyframes aksrtToastOut{0%{opacity:1;transform:translateY(0) scale(1)}100%{opacity:0;transform:translateY(8px) scale(0.95)}}";
        document.head.appendChild(style);
    }

    /* ── REST helper ── */
    function restRoot() {
        return ((aksrtData.siteUrl || "").replace(/\/$/, "")) + "/wp-json/aksrt/v1";
    }

    function request(path, body, method) {
        var opts = {
            method: method || "POST",
            credentials: "same-origin",
            headers: {
                "Content-Type": "application/json",
                "X-WP-Nonce": (aksrtData && aksrtData.restNonce) || ""
            }
        };
        if (body !== undefined) {
            opts.body = JSON.stringify(body || {});
        }
        return fetch(restRoot() + path, opts).then(function (response) {
            return response.text().then(function (text) {
                var data = {};
                try {
                    data = text ? JSON.parse(text) : {};
                } catch (e) {
                    data = {
                        success: false,
                        message: response.status === 404
                            ? "支付接口未找到（404），请刷新页面或联系管理员。"
                            : ("请求失败（HTTP " + response.status + "）")
                    };
                }
                if (typeof data.success === "undefined" && response.ok === false) {
                    data.success = false;
                    data.message = data.message || data.code || ("HTTP " + response.status);
                }
                return data;
            });
        });
    }

    function orderPath(orderNumber, suffix) {
        var base = "/shop/frontend/orders/" + encodeURIComponent(orderNumber || "");
        return suffix ? base + suffix : base;
    }

    function cartUrl() {
        return aksrtData.cartUrl || (aksrtData.routes && aksrtData.routes.cart) || "/";
    }

    /* ── Order review modal (zibll 1:1) ── */
    var STAR_SVG =
        '<svg viewBox="0 0 24 24" aria-hidden="true"><path d="M12 17.27L18.18 21l-1.64-7.03L22 9.24l-7.19-.61L12 2 9.19 8.63 2 9.24l5.46 4.73L5.82 21z"/></svg>';
    var SCORE_LABELS = ["", "非常差", "较差", "一般", "较好", "非常好"];

    function formatRemain(sec) {
        sec = Math.max(0, sec | 0);
        var d = Math.floor(sec / 86400);
        var h = Math.floor((sec % 86400) / 3600);
        var m = Math.floor((sec % 3600) / 60);
        var s = sec % 60;
        function z(n) { return n < 10 ? "0" + n : String(n); }
        if (d > 0) return d + "天" + z(h) + ":" + z(m) + ":" + z(s);
        return z(h) + ":" + z(m) + ":" + z(s);
    }

    function bindShopScore(root) {
        if (!root) return;
        root.querySelectorAll("[data-aksrt-score-box], .shop-score-box").forEach(function (box) {
            if (box.dataset.scoreBound === "1") return;
            box.dataset.scoreBound = "1";
            var iconBox = box.querySelector(".score-icon");
            var textBox = box.querySelector(".score-text");
            var input = box.querySelector(".score-input");
            if (!iconBox) return;
            var value = parseInt(box.getAttribute("score-value") || (input && input.value) || "0", 10) || 0;
            var html = "";
            for (var i = 1; i <= 5; i++) {
                html += '<i class="icon-star' + (i <= value ? " active" : "") + '" data-score="' + i + '">' + STAR_SVG + "</i>";
            }
            iconBox.innerHTML = html;
            function paint(score, hover) {
                iconBox.querySelectorAll(".icon-star").forEach(function (star) {
                    var s = parseInt(star.getAttribute("data-score"), 10) || 0;
                    star.classList.toggle("active", !hover && s <= score);
                    star.classList.toggle("hover", !!hover && s <= score);
                });
                if (textBox) textBox.textContent = SCORE_LABELS[score] || "";
            }
            paint(value, false);
            iconBox.addEventListener("mouseover", function (e) {
                var star = e.target.closest(".icon-star");
                if (!star || !iconBox.contains(star)) return;
                paint(parseInt(star.getAttribute("data-score"), 10) || 0, true);
            });
            iconBox.addEventListener("mouseleave", function () {
                var cur = parseInt(box.getAttribute("score-value") || "0", 10) || 0;
                paint(cur, false);
            });
            iconBox.addEventListener("click", function (e) {
                var star = e.target.closest(".icon-star");
                if (!star || !iconBox.contains(star)) return;
                var score = parseInt(star.getAttribute("data-score"), 10) || 0;
                box.setAttribute("score-value", String(score));
                if (input) input.value = String(score);
                paint(score, false);
            });
        });
    }

    function bindReviewImages(form) {
        var preview = form.querySelector("[data-aksrt-review-preview]");
        var fileInput = form.querySelector("[data-aksrt-review-file]");
        var addBtn = form.querySelector("[data-aksrt-review-add]");
        if (!preview || !fileInput) return;
        var max = parseInt(preview.getAttribute("data-max") || "6", 10) || 6;
        var files = [];

        function render() {
            preview.querySelectorAll(".preview-item").forEach(function (n) { n.remove(); });
            files.forEach(function (item, idx) {
                var node = document.createElement("div");
                node.className = "preview-item";
                node.innerHTML = '<img alt=""><button type="button" class="remove" aria-label="删除">&times;</button>';
                node.querySelector("img").src = item.url;
                node.querySelector(".remove").addEventListener("click", function (e) {
                    e.preventDefault();
                    e.stopPropagation();
                    if (item.url && item.url.indexOf("blob:") === 0) {
                        try { URL.revokeObjectURL(item.url); } catch (err) {}
                    }
                    files.splice(idx, 1);
                    render();
                });
                preview.insertBefore(node, addBtn);
            });
            if (addBtn) addBtn.style.display = files.length >= max ? "none" : "";
            form._aksrtReviewFiles = files.slice();
        }

        function onPick() {
            if (files.length >= max) return;
            fileInput.click();
        }
        if (addBtn) {
            addBtn.addEventListener("click", onPick);
            addBtn.addEventListener("keydown", function (e) {
                if (e.key === "Enter" || e.key === " ") {
                    e.preventDefault();
                    onPick();
                }
            });
        }
        fileInput.addEventListener("change", function () {
            var list = Array.prototype.slice.call(fileInput.files || []);
            list.forEach(function (file) {
                if (files.length >= max) return;
                if (!file.type || file.type.indexOf("image/") !== 0) return;
                files.push({ file: file, url: URL.createObjectURL(file) });
            });
            fileInput.value = "";
            render();
        });
        form._aksrtReviewFiles = [];
        render();
    }

    function bindReviewCountdown(root) {
        var el = root.querySelector("[data-aksrt-review-countdown]");
        if (!el) return;
        var remain = parseInt(el.getAttribute("data-aksrt-review-countdown") || "0", 10) || 0;
        if (remain <= 0) return;
        el.textContent = formatRemain(remain);
        var timer = window.setInterval(function () {
            remain -= 1;
            if (remain <= 0) {
                window.clearInterval(timer);
                el.textContent = "交易已关闭";
                return;
            }
            el.textContent = formatRemain(remain);
        }, 1000);
        root._aksrtReviewTimer = timer;
    }

    function fileToDataUrl(file) {
        return new Promise(function (resolve, reject) {
            var reader = new FileReader();
            reader.onload = function () { resolve(String(reader.result || "")); };
            reader.onerror = function () { reject(new Error("read failed")); };
            reader.readAsDataURL(file);
        });
    }

    function openOrderReviewModal(orderNumber, triggerBtn) {
        if (!window.AksrtRemoteModal || typeof window.AksrtRemoteModal.openRemote !== "function") {
            showToast("评价组件未加载");
            return;
        }
        if (triggerBtn) triggerBtn.disabled = true;
        var url = restRoot() + orderPath(orderNumber, "/review-modal");
        window.AksrtRemoteModal.openRemote({
            url: url,
            className: "modal-mini full-sm",
            height: 380,
            mobileBottom: true
        }).then(function (shell) {
            if (triggerBtn) triggerBtn.disabled = false;
            if (!shell) return;
            var form = shell.querySelector("[data-aksrt-order-review-form]");
            if (!form) return;
            bindShopScore(shell);
            bindReviewImages(form);
            bindReviewCountdown(shell);

            form.addEventListener("submit", function (e) {
                e.preventDefault();
                var errBox = form.querySelector("[data-aksrt-review-error]");
                function showErr(msg) {
                    if (errBox) {
                        errBox.hidden = false;
                        errBox.textContent = msg;
                    } else {
                        showToast(msg);
                    }
                }
                if (errBox) {
                    errBox.hidden = true;
                    errBox.textContent = "";
                }

                var productId = parseInt(form.getAttribute("data-product-id") || "0", 10) || 0;
                var needShipping = form.getAttribute("data-need-shipping") === "1";
                var scoreProduct = parseInt((form.querySelector('input[name="score[product]"]') || {}).value || "0", 10) || 0;
                var scoreService = parseInt((form.querySelector('input[name="score[service]"]') || {}).value || "0", 10) || 0;
                var scoreShipping = parseInt((form.querySelector('input[name="score[shipping]"]') || {}).value || "0", 10) || 0;
                if (scoreProduct < 1 || scoreService < 1) {
                    showErr("请对商品进行评分");
                    return;
                }
                if (needShipping && scoreShipping < 1) {
                    showErr("请对物流服务进行评分");
                    return;
                }

                var comment = (form.querySelector('textarea[name="comment"]') || {}).value || "";
                var submitBtn = form.querySelector("[data-aksrt-review-submit]");
                if (submitBtn) {
                    submitBtn.disabled = true;
                    submitBtn.textContent = "提交中…";
                }

                var pending = form._aksrtReviewFiles || [];
                Promise.all(pending.map(function (item) {
                    return item.file ? fileToDataUrl(item.file) : Promise.resolve(item.url || "");
                })).then(function (images) {
                    images = images.filter(Boolean);
                    return request(orderPath(orderNumber, "/review"), {
                        product_id: productId,
                        content: comment,
                        rating_product: scoreProduct,
                        rating_service: scoreService,
                        rating_shipping: needShipping ? scoreShipping : scoreService,
                        images: images
                    });
                }).then(function (result) {
                    if (submitBtn) {
                        submitBtn.disabled = false;
                        submitBtn.innerHTML = '<i class="fa fa-check" aria-hidden="true"></i> 确认提交';
                    }
                    if (!result || !result.success) {
                        showErr((result && result.message) || "评价失败");
                        return;
                    }
                    showToast((result.message) || "评价成功");
                    if (window.AksrtRemoteModal) window.AksrtRemoteModal.close();
                    var card = findOrderCard(orderNumber);
                    updateCardStatus(card, "completed", "已完成");
                    if (card) {
                        var btn = card.querySelector("[data-aksrt-order-review]");
                        if (btn) btn.remove();
                    }
                }).catch(function () {
                    if (submitBtn) {
                        submitBtn.disabled = false;
                        submitBtn.innerHTML = '<i class="fa fa-check" aria-hidden="true"></i> 确认提交';
                    }
                    showErr("网络错误");
                });
            });
        }).catch(function (err) {
            if (triggerBtn) triggerBtn.disabled = false;
            showToast((err && err.message) || "无法打开评价");
        });
    }

    /* ── 扫码支付弹层（微信 Native code_url 等）── */
    function showPaymentQr(content, orderNumber) {
        var existing = document.getElementById("aksrt-pay-qr-overlay");
        if (existing) existing.remove();

        var overlay = document.createElement("div");
        overlay.id = "aksrt-pay-qr-overlay";
        overlay.style.cssText = "position:fixed;inset:0;z-index:100000;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,0.5);";

        var qrImg = "";
        if (window.AksrtShare && typeof window.AksrtShare.buildQrDataUrl === "function") {
            var dataUrl = window.AksrtShare.buildQrDataUrl(content, 220);
            if (dataUrl) {
                qrImg = '<img src="' + dataUrl + '" alt="支付二维码" width="220" height="220" style="display:block;margin:0 auto;">';
            }
        }
        if (!qrImg) {
            qrImg = '<p style="word-break:break-all;font-size:12px;color:#666;">' + String(content).replace(/[<>&]/g, "") + "</p>";
        }

        var card = document.createElement("div");
        card.style.cssText = "background:#fff;border-radius:12px;padding:24px;max-width:300px;text-align:center;box-shadow:0 10px 40px rgba(0,0,0,0.2);";
        card.innerHTML =
            '<h3 style="margin:0 0 12px;font-size:16px;">请扫码完成支付</h3>' +
            qrImg +
            '<p style="margin:12px 0 0;font-size:13px;color:#888;">支付完成后本页将自动更新</p>' +
            '<button type="button" id="aksrt-pay-qr-close" style="margin-top:14px;padding:8px 20px;border:none;border-radius:8px;background:var(--color-primary,#f04494);color:#fff;cursor:pointer;">完成 / 关闭</button>';
        overlay.appendChild(card);
        document.body.appendChild(overlay);

        function close() { overlay.remove(); }
        overlay.addEventListener("click", function (e) { if (e.target === overlay) close(); });
        card.querySelector("#aksrt-pay-qr-close").addEventListener("click", function () {
            close();
            // 关闭后查询订单是否已到账
            if (orderNumber) {
                request(orderPath(orderNumber), {}, "GET").then(function () {
                    window.location.reload();
                }).catch(function () {});
            }
        });
    }

    /* ── 第三方支付返回提示（?payment=success|pending|cancelled）── */
    (function paymentReturnNotice() {
        var params = new URLSearchParams(window.location.search);
        var pay = params.get("payment");
        if (!pay) return;
        var map = { success: "支付成功！", pending: "支付处理中，到账后将自动更新。", cancelled: "支付已取消。", fail: "支付失败，请重试。" };
        showToast(map[pay] || "支付状态：" + pay, 3500);
    })();

    /* ── Local card refresh helpers ── */
    function findOrderCard(orderNumber) {
        return page.querySelector('[data-aksrt-order-card="' + orderNumber + '"]');
    }

    function updateCardStatus(card, newStatus, statusLabel) {
        if (!card) return;
        var badge = card.querySelector(".aksrt-orders-page__card-status, .aksrt-orders-page__item-badge");
        if (badge) {
            badge.textContent = statusLabel || newStatus;
        }
        // Hide action buttons that are no longer relevant
        var actions = card.querySelectorAll("[data-aksrt-order-pay], [data-aksrt-order-cancel], [data-aksrt-order-after-sale], [data-aksrt-order-receipt], [data-aksrt-order-rebuy]");
        for (var i = 0; i < actions.length; i++) {
            actions[i].style.display = "none";
        }
        // Hide countdown if present
        var countdown = card.querySelector("[data-aksrt-order-countdown]");
        if (countdown) {
            countdown.style.display = "none";
        }
    }

    /* ── After-Sale Modal ── */
    var afterSaleModal = page.querySelector("[data-aksrt-aftersale-modal]");
    var afterSaleForm = page.querySelector("[data-aksrt-aftersale-form]");
    var afterSaleOrderInput = afterSaleForm ? afterSaleForm.querySelector('[name="order_number"]') : null;

    function openAfterSaleModal(orderNumber) {
        if (!afterSaleModal || !afterSaleForm) {
            showToast("售后表单加载失败，请刷新页面后重试。");
            return;
        }
        afterSaleForm.reset();
        if (afterSaleOrderInput) afterSaleOrderInput.value = orderNumber;
        afterSaleModal.hidden = false;
    }

    function closeAfterSaleModal() {
        if (afterSaleModal) afterSaleModal.hidden = true;
    }

    if (afterSaleForm) {
        afterSaleForm.addEventListener("submit", function (event) {
            event.preventDefault();
            var formData = new FormData(afterSaleForm);
            var orderNumber = formData.get("order_number");
            var reason = (formData.get("reason") || "").trim();
            if (!reason) {
                showToast("请填写售后原因。");
                return;
            }

            var submitBtn = afterSaleForm.querySelector('button[type="submit"]');
            if (submitBtn) {
                submitBtn.disabled = true;
                submitBtn.textContent = "提交中...";
            }

            request(orderPath(orderNumber, "/after-sale"), {
                type: formData.get("type") || "refund",
                reason: reason,
                note: (formData.get("note") || "").trim()
            }).then(function (result) {
                if (submitBtn) {
                    submitBtn.disabled = false;
                    submitBtn.textContent = "提交售后";
                }
                if (!result.success) {
                    showToast(result.message || "提交售后失败。");
                    return;
                }
                closeAfterSaleModal();
                showToast("售后申请已提交。");
                // Local refresh: update card status
                var card = findOrderCard(orderNumber);
                updateCardStatus(card, "refunded", "已退款");
            }).catch(function () {
                if (submitBtn) {
                    submitBtn.disabled = false;
                    submitBtn.textContent = "提交售后";
                }
                showToast("网络错误，请稍后重试。");
            });
        });
    }

    /* ── Countdown timer ── */
    function updateCountdowns() {
        var nodes = page.querySelectorAll("[data-aksrt-order-countdown]");
        for (var i = 0; i < nodes.length; i++) {
            var node = nodes[i];
            var value = Number(node.getAttribute("data-aksrt-order-countdown") || 0);
            if (!value) continue;

            value -= 1;
            node.setAttribute("data-aksrt-order-countdown", String(value));
            node.textContent = value > 0 ? "剩余支付时间 " + value + " 秒" : "待支付已超时，请重新发起。";
        }
    }

    setInterval(updateCountdowns, 1000);

    /* ── Event delegation ── */
    page.addEventListener("click", function (event) {
        // Timeline toggle
        var timelineToggle = event.target.closest("[data-aksrt-toggle-timeline]");
        if (timelineToggle) {
            var timeline = timelineToggle.closest("[data-aksrt-timeline]");
            var body = timeline ? timeline.querySelector(".aksrt-orders-page__timeline-body") : null;
            if (body) body.hidden = !body.hidden;
            return;
        }

        // Confirm receipt
        var receiptBtn = event.target.closest("[data-aksrt-order-receipt]");
        if (receiptBtn) {
            var receiptOrder = receiptBtn.getAttribute("data-aksrt-order-receipt");
            if (!receiptOrder) return;
            if (!window.confirm("确认已收到货物？")) return;
            receiptBtn.disabled = true;
            request(orderPath(receiptOrder, "/confirm-receipt"), {})
                .then(function (result) {
                    receiptBtn.disabled = false;
                    if (!result || !result.success) {
                        showToast((result && result.message) || "确认收货失败");
                        return;
                    }
                    showToast("已确认收货");
                    updateCardStatus(findOrderCard(receiptOrder), "completed", "已完成");
                })
                .catch(function () {
                    receiptBtn.disabled = false;
                    showToast("网络错误");
                });
            return;
        }

        // Rebuy
        var rebuyBtn = event.target.closest("[data-aksrt-order-rebuy]");
        if (rebuyBtn) {
            var rebuyOrder = rebuyBtn.getAttribute("data-aksrt-order-rebuy");
            if (!rebuyOrder) return;
            rebuyBtn.disabled = true;
            request(orderPath(rebuyOrder, "/rebuy"), {})
                .then(function (result) {
                    rebuyBtn.disabled = false;
                    if (!result || !result.success) {
                        showToast((result && result.message) || "再次购买失败");
                        return;
                    }
                    showToast("已加入购物车");
                    window.location.href = cartUrl();
                })
                .catch(function () {
                    rebuyBtn.disabled = false;
                    showToast("网络错误");
                });
            return;
        }

        // Review modal (zibll order_comment_modal 1:1 UX)
        var reviewBtn = event.target.closest("[data-aksrt-order-review]");
        if (reviewBtn) {
            var reviewOrder = reviewBtn.getAttribute("data-aksrt-order-review");
            if (!reviewOrder) return;
            openOrderReviewModal(reviewOrder, reviewBtn);
            return;
        }

        // Pay
        var payButton = event.target.closest("[data-aksrt-order-pay]");
        if (payButton) {
            var payOrderNumber = payButton.getAttribute("data-aksrt-order-pay");
            // 支付方式取订单创建时选定的方式（按钮 data 属性可覆盖）；
            // 留空则由服务端使用订单存储的 payment_method。
            var payMethod = payButton.getAttribute("data-aksrt-order-method") || "";
            payButton.disabled = true;
            payButton.textContent = "处理中...";
            request(orderPath(payOrderNumber, "/pay"), payMethod ? { payment_method: payMethod } : {})
                .then(function (result) {
                    if (!result.success) {
                        payButton.disabled = false;
                        payButton.textContent = "立即支付";
                        showToast(result.message || "支付失败。");
                        return;
                    }

                    var data = result.data || {};

                    // 跳转/扫码型网关：到第三方支付页或展示二维码，订单仍为待支付，
                    // 由回调确认到账。
                    if (data.redirect) {
                        if (data.payment_url && /^https?:\/\//i.test(data.payment_url)) {
                            window.location.href = data.payment_url;
                            return;
                        }
                        if (data.qr_content || data.payment_url) {
                            showPaymentQr(data.qr_content || data.payment_url, payOrderNumber);
                            payButton.disabled = false;
                            payButton.textContent = "已下单，待支付";
                            return;
                        }
                    }

                    // 同步型网关（站内余额）：已到账。
                    showToast("支付成功！");
                    var card = findOrderCard(payOrderNumber);
                    updateCardStatus(card, "paid", "已支付");
                })
                .catch(function () {
                    payButton.disabled = false;
                    payButton.textContent = "立即支付";
                    showToast("网络错误，请稍后重试。");
                });
            return;
        }

        // Cancel
        var cancelButton = event.target.closest("[data-aksrt-order-cancel]");
        if (cancelButton) {
            var cancelOrderNumber = cancelButton.getAttribute("data-aksrt-order-cancel");
            cancelButton.disabled = true;
            cancelButton.textContent = "取消中...";
            request(orderPath(cancelOrderNumber, "/cancel"))
                .then(function (result) {
                    if (!result.success) {
                        cancelButton.disabled = false;
                        cancelButton.textContent = "取消订单";
                        showToast(result.message || "取消失败。");
                        return;
                    }
                    showToast("订单已取消。");
                    var card = findOrderCard(cancelOrderNumber);
                    updateCardStatus(card, "cancelled", "已取消");
                })
                .catch(function () {
                    cancelButton.disabled = false;
                    cancelButton.textContent = "取消订单";
                    showToast("网络错误，请稍后重试。");
                });
            return;
        }

        // After-Sale
        var afterSaleButton = event.target.closest("[data-aksrt-order-after-sale]");
        if (afterSaleButton) {
            var afterSaleOrderNumber = afterSaleButton.getAttribute("data-aksrt-order-after-sale");
            openAfterSaleModal(afterSaleOrderNumber);
            return;
        }

        // Return shipping
        var returnShipBtn = event.target.closest("[data-aksrt-return-ship]");
        if (returnShipBtn) {
            openReturnShipModal(returnShipBtn.getAttribute("data-aksrt-return-ship"));
            return;
        }

        // Cancel after-sale ticket
        var asCancelBtn = event.target.closest("[data-aksrt-as-cancel]");
        if (asCancelBtn) {
            var tid = asCancelBtn.getAttribute("data-aksrt-as-cancel");
            if (!tid || !window.confirm("确认取消该售后申请？")) return;
            asCancelBtn.disabled = true;
            request("/shop/frontend/after-sale/" + tid + "/cancel", { reason: "" })
                .then(function (result) {
                    asCancelBtn.disabled = false;
                    if (!result || !result.success) {
                        showToast((result && result.message) || "取消失败");
                        return;
                    }
                    showToast(result.message || "已取消售后");
                    window.location.reload();
                })
                .catch(function () {
                    asCancelBtn.disabled = false;
                    showToast("网络错误");
                });
            return;
        }

        // Close after-sale modal
        if (event.target.closest("[data-aksrt-aftersale-modal-close]") || (event.target.classList && event.target.classList.contains("aksrt-modal__overlay") && event.target.closest("[data-aksrt-aftersale-modal]"))) {
            closeAfterSaleModal();
            return;
        }

        // Close return-ship modal
        if (event.target.closest("[data-aksrt-return-ship-close]") || (event.target.classList && event.target.classList.contains("aksrt-modal__overlay") && event.target.closest("[data-aksrt-return-ship-modal]"))) {
            closeReturnShipModal();
        }
    });

    /* ── Return shipping modal ── */
    var returnShipModal = page.querySelector("[data-aksrt-return-ship-modal]");
    var returnShipForm = page.querySelector("[data-aksrt-return-ship-form]");
    function openReturnShipModal(ticketId) {
        if (!returnShipModal || !returnShipForm) return;
        returnShipForm.reset();
        var idInput = returnShipForm.querySelector('[name="ticket_id"]');
        if (idInput) idInput.value = ticketId || "";
        returnShipModal.hidden = false;
    }
    function closeReturnShipModal() {
        if (returnShipModal) returnShipModal.hidden = true;
    }
    if (returnShipForm) {
        returnShipForm.addEventListener("submit", function (event) {
            event.preventDefault();
            var fd = new FormData(returnShipForm);
            var tid = fd.get("ticket_id");
            var carrier = (fd.get("carrier") || "").trim();
            var tracking = (fd.get("tracking_no") || "").trim();
            if (!carrier || !tracking) {
                showToast("请填写快递公司与运单号");
                return;
            }
            var btn = returnShipForm.querySelector('button[type="submit"]');
            if (btn) { btn.disabled = true; }
            request("/shop/frontend/after-sale/" + tid + "/return-shipping", {
                carrier: carrier,
                tracking_no: tracking
            }).then(function (result) {
                if (btn) btn.disabled = false;
                if (!result || !result.success) {
                    showToast((result && result.message) || "提交失败");
                    return;
                }
                closeReturnShipModal();
                showToast(result.message || "退货物流已提交");
                window.location.reload();
            }).catch(function () {
                if (btn) btn.disabled = false;
                showToast("网络错误");
            });
        });
    }

    /* ── Coupon wallet ── */
    var couponRoot = page.querySelector("[data-aksrt-coupon-wallet-list]");
    if (couponRoot) {
        request("/shop/frontend/coupons").then(function (result) {
            var items = (result && result.data && result.data.items) || (result && result.items) || [];
            // normalize success envelope
            if (result && result.data && result.data.data && result.data.data.items) {
                items = result.data.data.items;
            }
            if (result && result.success && result.data && result.data.items) {
                items = result.data.items;
            }
            // handle this success() wrapper: {success,data:{items}}
            if (Array.isArray(result && result.data)) items = result.data;
            if (!items.length && result && result.data && Array.isArray(result.data.items)) {
                items = result.data.items;
            }
            // fallback parse
            try {
                if (!items.length && result && result.data && result.data.data) {
                    items = result.data.data.items || [];
                }
            } catch (e) {}
            if (!items || !items.length) {
                couponRoot.innerHTML = '<p class="muted-2-color">暂无可用优惠券</p>';
                return;
            }
            var html = '<div class="aksrt-coupon-grid">';
            items.forEach(function (c) {
                var val = c.type === "percent" ? (c.value + "%") : ("¥" + Number(c.value || 0).toFixed(2));
                html += '<div class="aksrt-coupon-card">';
                html += '<div class="aksrt-coupon-card__value">' + val + '</div>';
                html += '<div class="aksrt-coupon-card__code">' + (c.code || "") + '</div>';
                if (c.min_amount > 0) {
                    html += '<div class="aksrt-coupon-card__meta">满 ¥' + Number(c.min_amount).toFixed(2) + ' 可用</div>';
                }
                if (c.expires_at) {
                    html += '<div class="aksrt-coupon-card__meta">有效期至 ' + c.expires_at + '</div>';
                }
                html += '<button type="button" class="btn-outline btn-sm" data-aksrt-copy-coupon="' + (c.code || "") + '">复制券码</button>';
                html += '</div>';
            });
            html += '</div>';
            couponRoot.innerHTML = html;
        }).catch(function () {
            couponRoot.innerHTML = '<p class="muted-2-color">加载失败</p>';
        });
        page.addEventListener("click", function (e) {
            var b = e.target.closest("[data-aksrt-copy-coupon]");
            if (!b) return;
            var code = b.getAttribute("data-aksrt-copy-coupon") || "";
            if (!code) return;
            if (navigator.clipboard && navigator.clipboard.writeText) {
                navigator.clipboard.writeText(code).then(function () { showToast("已复制 " + code); });
            } else {
                showToast(code);
            }
        });
    }
})();