/**
 * AKSRT VIP pay modal — zibll .pay-vip parity.
 * Loads modal HTML from GET /aksrt/v1/pay/vip/modal then purchases via POST /pay/vip.
 */
(function () {
  "use strict";

  function restBase() {
    var aksrt = window.aksrtData || window.aksrt || {};
    var siteUrl = aksrt.siteUrl || aksrt.homeUrl || (window.location.origin + "/");
    if (window.location.protocol === "https:" && siteUrl.substring(0, 5) === "http:") {
      siteUrl = "https:" + siteUrl.substring(5);
    }
    var raw = aksrt.apiUrl || aksrt.restUrl || aksrt.rest_url || "";
    if (raw) {
      return String(raw).replace(/\/$/, "");
    }
    return siteUrl.replace(/\/$/, "") + "/index.php?rest_route=/aksrt/v1";
  }

  /**
   * Join REST root + path [+ query].
   * Pretty:  /wp-json/aksrt/v1/pay/vip/modal?vip_level=1
   * Plain:   index.php?rest_route=/aksrt/v1/pay/vip/modal&vip_level=1
   * Never put a second "?" after rest_route= (that 404s).
   */
  function restUrl(path, query) {
    path = String(path || "");
    if (path.charAt(0) !== "/") path = "/" + path;
    var base = restBase();
    var qstr = "";
    if (query && typeof query === "object") {
      var parts = [];
      Object.keys(query).forEach(function (k) {
        if (query[k] === undefined || query[k] === null) return;
        parts.push(encodeURIComponent(k) + "=" + encodeURIComponent(String(query[k])));
      });
      qstr = parts.join("&");
    } else if (typeof query === "string" && query) {
      qstr = query.replace(/^\?/, "");
    }

    if (base.indexOf("rest_route=") !== -1) {
      var url = base + path;
      if (qstr) url += "&" + qstr;
      return url;
    }

    var pretty = base + path;
    if (qstr) pretty += (pretty.indexOf("?") >= 0 ? "&" : "?") + qstr;
    return pretty;
  }

  function nonceHeaders() {
    var aksrt = window.aksrtData || window.aksrt || {};
    var n = aksrt.restNonce || aksrt.nonce || "";
    return n ? { "X-WP-Nonce": n } : {};
  }

  function api(path, options) {
    var opts = Object.assign({}, options || {});
    var query = opts.query;
    if (Object.prototype.hasOwnProperty.call(opts, "query")) {
      delete opts.query;
    }
    var onlyPath = String(path || "");
    var inlineQ = null;
    var qi = onlyPath.indexOf("?");
    if (qi >= 0) {
      inlineQ = onlyPath.slice(qi + 1);
      onlyPath = onlyPath.slice(0, qi);
    }
    var url = restUrl(onlyPath, query || inlineQ);

    var merged = Object.assign(
      {
        credentials: "same-origin",
        headers: Object.assign({ "Content-Type": "application/json" }, nonceHeaders()),
      },
      opts
    );
    return fetch(url, merged).then(function (r) {
      return r
        .json()
        .catch(function () {
          return { message: "Invalid JSON (HTTP " + r.status + ")" };
        })
        .then(function (j) {
          return { ok: r.ok, status: r.status, json: j };
        });
    });
  }
  function ensureModalShell() {
    var el = document.getElementById("modal_pay_uservip");
    if (el) return el;
    el = document.createElement("div");
    el.id = "modal_pay_uservip";
    el.className = "aksrt-vip-modal-overlay";
    el.setAttribute("aria-hidden", "true");
    el.innerHTML =
      '<div class="aksrt-vip-modal-dialog" role="dialog" aria-modal="true">' +
      '<div class="aksrt-vip-modal-content" data-aksrt-vip-modal-body></div></div>';
    document.body.appendChild(el);
    el.addEventListener("click", function (e) {
      if (e.target === el || e.target.closest(".aksrt-vip-modal-close")) {
        closeModal();
      }
    });
    document.addEventListener("keydown", function (e) {
      if (e.key === "Escape") closeModal();
    });
    return el;
  }

  function openModal() {
    var el = ensureModalShell();
    el.classList.add("is-open");
    el.setAttribute("aria-hidden", "false");
    document.body.classList.add("aksrt-vip-modal-open");
  }

  function closeModal() {
    var el = document.getElementById("modal_pay_uservip");
    if (!el) return;
    el.classList.remove("is-open");
    el.setAttribute("aria-hidden", "true");
    document.body.classList.remove("aksrt-vip-modal-open");
  }

  function bindModalUi(root) {
    if (!root || root.dataset.aksrtVipBound === "1") return;
    root.dataset.aksrtVipBound = "1";

    root.addEventListener("click", function (e) {
      var tab = e.target.closest("[data-vip-tab]");
      if (tab) {
        e.preventDefault();
        var id = tab.getAttribute("data-vip-tab");
        root.querySelectorAll(".aksrt-vip-tab").forEach(function (a) {
          a.parentElement && a.parentElement.classList.remove("active");
        });
        tab.parentElement && tab.parentElement.classList.add("active");
        root.querySelectorAll(".aksrt-vip-pane").forEach(function (p) {
          var on = p.id === id;
          p.hidden = !on;
          p.classList.toggle("active", on);
        });
        return;
      }

      var submit = e.target.closest("[data-vip-submit]");
      if (submit) {
        e.preventDefault();
        purchaseFromPane(submit.closest(".aksrt-vip-pane") || root, submit);
      }
    });
  }

  function selectedMethod(root) {
    var fixed = root.querySelector("[data-aksrt-vip-method-fixed]");
    if (fixed && fixed.value) return fixed.value;
    var checked = root.querySelector('input[name="aksrt_vip_pay_method"]:checked');
    if (checked) return checked.value;
    var first = root.querySelector('input[name="aksrt_vip_pay_method"]');
    return first ? first.value : "balance";
  }

  function selectedPackage(root) {
    var checked = root.querySelector('input[name="vip_product_id"]:checked');
    return checked ? parseInt(checked.value, 10) : 0;
  }

  function setTip(root, text, isError) {
    var tip = root.querySelector("[data-aksrt-vip-tip]");
    if (!tip) return;
    tip.textContent = text || "";
    tip.classList.toggle("is-error", !!isError);
  }

  function pollOrder(orderNumber) {
    if (!orderNumber) return;
    var tries = 0;
    var timer = setInterval(function () {
      tries += 1;
      api("/pay/content/order/" + encodeURIComponent(orderNumber))
        .then(function (r) {
          if (r.ok && r.json && r.json.paid) {
            clearInterval(timer);
            window.location.reload();
          }
        })
        .catch(function () {});
      if (tries >= 40) clearInterval(timer);
    }, 3000);
  }

  function purchaseFromPane(pane, btn) {
    var packageId = selectedPackage(pane);
    if (!packageId) {
      setTip(pane, "请选择套餐", true);
      return;
    }
    if (btn.disabled) return;
    btn.disabled = true;
    btn.classList.add("is-loading");
    setTip(pane, "正在创建订单…");

    api("/pay/vip", {
      method: "POST",
      body: JSON.stringify({
        package_id: packageId,
        payment_method: selectedMethod(pane),
      }),
    })
      .then(function (r) {
        btn.disabled = false;
        btn.classList.remove("is-loading");
        if (!r.ok || (r.json && r.json.code && !r.json.success && r.json.success !== true)) {
          var msg = (r.json && r.json.message) || "开通失败";
          if (r.status === 401) {
            msg = "请先登录";
            document.querySelector(".signin-loader") && document.querySelector(".signin-loader").click();
          }
          setTip(pane, msg, true);
          return;
        }
        var data = r.json && r.json.data ? r.json.data : r.json;
        if (data && data.redirect && (data.payment_url || data.qr_content)) {
          if (data.payment_url) window.open(data.payment_url, "_blank");
          setTip(pane, data.message || "请完成支付，支付成功后将自动刷新。");
          if (data.order_number) pollOrder(data.order_number);
          return;
        }
        setTip(pane, (data && data.message) || "开通成功，正在刷新…");
        setTimeout(function () {
          window.location.reload();
        }, 400);
      })
      .catch(function () {
        btn.disabled = false;
        btn.classList.remove("is-loading");
        setTip(pane, "网络错误，请重试", true);
      });
  }

  var loading = false;

  function vipPay(trigger) {
    var level = 1;
    if (trigger) {
      level = parseInt(trigger.getAttribute("vip-level") || trigger.getAttribute("data-vip-level") || "1", 10) || 1;
    }
    if (loading) return;
    loading = true;
    var shell = ensureModalShell();
    var body = shell.querySelector("[data-aksrt-vip-modal-body]");
    if (body) body.innerHTML = '<div class="text-center padding-20 muted-2-color">加载中…</div>';
    openModal();

    api("/pay/vip/modal", { query: { vip_level: level } })
      .then(function (r) {
        loading = false;
        if (r.status === 401) {
          closeModal();
          var login = document.querySelector(".signin-loader");
          if (login) login.click();
          return;
        }
        if (!r.ok || !r.json || !r.json.html) {
          if (body) {
            body.innerHTML =
              '<div class="text-center padding-20 c-red">' +
              ((r.json && r.json.message) || "加载失败") +
              "</div>";
          }
          return;
        }
        if (body) {
          body.innerHTML = r.json.html;
          bindModalUi(body);
        }
      })
      .catch(function () {
        loading = false;
        if (body) {
          body.innerHTML = '<div class="text-center padding-20 c-red">网络错误</div>';
        }
      });
  }

  function onDocClick(e) {
    // Header CTA, float rail, UC buttons, VIP hover cards.
    var t = e.target.closest(".pay-vip, a.pay-vip, .float-btn.pay-vip, [data-aksrt-pay-vip]");
    if (!t) return;
    // Real external href without modal intent: leave alone.
    var href = (t.getAttribute("href") || "").trim();
    if (href && href !== "#" && href.indexOf("javascript:") !== 0 && !t.classList.contains("pay-vip") && !t.hasAttribute("data-aksrt-pay-vip") && !t.hasAttribute("vip-level") && !t.hasAttribute("data-vip-level")) {
      return;
    }
    e.preventDefault();
    e.stopPropagation();
    vipPay(t);
  }

  function init() {
    // Capture phase so float/header anchors with href never navigate first.
    document.addEventListener("click", onDocClick, true);
  }

  // Prefer module registry, but always bind once as hard fallback
  // (float rail must work even if AksrtFrontend.rehydrate is a no-op).
  if (window.__aksrtPayVipBound) {
    // already initialized
  } else if (window.AksrtFrontend && typeof window.AksrtFrontend.register === "function") {
    window.AksrtFrontend.register("aksrt-pay-vip", function () {
      if (window.__aksrtPayVipBound) return;
      window.__aksrtPayVipBound = true;
      init();
    });
    // Also bind immediately — float button is in footer, available now.
    if (!window.__aksrtPayVipBound) {
      window.__aksrtPayVipBound = true;
      init();
    }
  } else if (document.readyState === "loading") {
    document.addEventListener("DOMContentLoaded", function () {
      if (window.__aksrtPayVipBound) return;
      window.__aksrtPayVipBound = true;
      init();
    });
  } else {
    window.__aksrtPayVipBound = true;
    init();
  }

  window.aksrtVipPay = vipPay;
})();