Back To School Special Offer
🎓
Save $100
Back To School Deal
Code:
BTS100
🚚
Free Shipping
Fast Delivery From EU/UK Warehouse
🛡
2-Year Warranty
Official Warranty Protection
🔧
Expert Support
Professional Assistance For Your Ride
Choose Your Ride
🔥 Adventure E-Bike
Shengmilo S600
- 2000W Dual Motor
- 26×3 Fat Tires
- Full Suspension
- Built For Adventure
SHOP S600
⭐ Premium Performance
Shengmilo S700
- 2000W Dual Motor
- Samsung Battery
- Premium Suspension
- Power Meets Comfort
SHOP S700
🚲 Daily Commuter
Shengmilo MX06
- Step Through Design
- Comfort Daily Ride
- Easy Commuting
- City Friendly
SHOP MX06
Why Choose Shengmilo
⚡
Powerful Motors
Strong performance for commuting and outdoor adventures.
🔋
Long Range Battery
Go further with reliable battery performance.
🚵
Fat Tire Stability
Smooth control across different roads and terrains.
☁
Comfort Suspension
Enjoy a smoother ride every day.
More Than A Ride
From campus mornings
to weekend adventures
Back To School FAQ
How can I use BTS100 discount?
Enter code BTS100 during checkout to receive your Back To School offer.
Where are Shengmilo bikes shipped from?
Orders are shipped from EU/UK warehouses for faster delivery.
Are Shengmilo bikes suitable for daily commuting?
Yes. Shengmilo bikes are designed for commuting, outdoor riding and weekend adventures.
(function() {
const STATUS = {
LOADING: 'loading',
FINISH: 'finish'
};
const RESULT = {
EMPTY: 'data-empty'
};
class SPZCustomCartSku extends SPZ.BaseElement {
renderData = [];
/**
* add to cart reselect item, and delete process:
* 1. record reselect id before show reselect modal
* 2. add to cart success, mark `needDeleteReselectRecord` to true
* 3. close reselect modal / drawer
* 4. spz-cart re-render, triggered mounted event
* 5. call refresh
*/
// mark delete reselect id
recordReselectId = null;
// mark should delete reselect record after spz-cart mounted event
needDeleteReselectRecord = false;
refreshLock = false;
addToCartSuccess = false;
// cache paused refresh data
refreshDataCache = [];
// cache similar products data, for manual add to cart
similarData = [];
constructor(element) {
super(element);
this.xhr_ = SPZServices.xhrFor(this.win);
this.action_ = SPZServices.actionServiceForDoc(this.element);
}
setupAction_() {
this.registerAction('refresh', (invocation) => {
const data = invocation && invocation.args && invocation.args.data || {};
this.refresh(data);
});
this.registerAction('deleteReselect', SPZCore.Types.debounce(
this.win,
(invocation) => {
this.deleteReselect(invocation?.args?.id);
},
200
));
this.registerAction('deleteInvalid', SPZCore.Types.debounce(
this.win,
(invocation) => {
this.deleteInvalid(invocation?.args?.id);
},
200
));
this.registerAction('setReselectRecordId', (invocation) => {
this.setReselectRecordId(invocation?.args?.id);
});
this.registerAction('clearNeedReselectRecord', (invocation) => {
this.clearNeedReselectRecord();
});
this.registerAction('registerDeleteReselectTask', (invocation) => {
this.registerDeleteReselectTask(invocation?.args?.data);
});
this.registerAction('lockRefresh', (invocation) => {
this.lockRefresh();
});
this.registerAction('releaseRefreshLock', (invocation) => {
this.releaseRefreshLock();
});
this.registerAction('manualAddToCart', (invocation) => {
this.manualAddToCart(invocation?.args?.id);
});
this.registerAction('syncSimilarData', (invocation) => {
this.syncSimilarData(invocation?.args?.data);
});
// DEBUG
this.registerAction('log', (invocation) => {
const data = invocation && invocation.args && invocation.args.data || {};
console.log('log', invocation);
});
}
buildCallback() {
this.setupAction_();
}
isLayoutSupported(layout) {
return true;
}
/**
* 数据去重
* @param {Array} data
*/
uniq_(data) {
const result = [];
for(let i = 0; i < data.length; i++) {
if(!result.includes(data[i])) {
result.push(data[i]);
}
}
return result;
}
checkRefreshLock() {
if (this.refreshLock) {
return false;
}
return true;
}
setLoading(isLoading) {
SPZCore.Dom.toggleAttribute(this.element, STATUS.LOADING, isLoading);
SPZCore.Dom.toggleAttribute(this.element, STATUS.FINISH, !isLoading);
}
setDataResult(data) {
const isDataEmpty = !data.reselectSkus.length && !data.invalidSkus.length && !data.line_items.length;
SPZCore.Dom.toggleAttribute(this.element, RESULT.EMPTY, isDataEmpty);
}
// 存在多次请求顺序问题
async refresh(_data) {
// 接口失败时返回数据不为对象
if (!(typeof _data === 'object' && _data.line_items && _data.line_items.length > 0)) {
const newData = {
line_items: [],
reselectSkus: [],
invalidSkus: [],
displayInvalidSkus: []
};
this.trigger_('refreshError', newData);
this.setLoading(false);
return;
}
if (!this.checkRefreshLock()) {
this.setRefreshCache(_data);
return;
}
this.setLoading(true);
let data = _data;
if (this.needDeleteReselectRecord && this.recordReselectId) {
let hasError = false;
try {
data = await this.deleteReselectRecordBeforeRefresh(_data);
} catch (e) {
hasError = true;
console.error(e);
const newData = {
...data,
reselectSkus: [],
invalidSkus: [],
displayInvalidSkus: []
};
this.trigger_('refreshError', newData);
this.setLoading(false);
this.setDataResult(newData);
return;
}
this.needDeleteReselectRecord = false;
if (hasError) {
return;
}
}
// 获取失效商品
const invisibleItems = data.ineffectives;
// 获取失效商品内仅售罄商品的sku
const soldOutItems = invisibleItems.filter(item => item.reason === "line_item_sold_out");
// 通过失效 sku 获取 spu, 注意去重
const soldOutSpuIds = this.uniq_(soldOutItems.map(item => item.product_id));
const querySpuIds = soldOutSpuIds.map(spuId => `ids[]=${spuId}`).join('&');
if (!soldOutSpuIds.length) {
const newData = {
...data,
reselectSkus: [],
invalidSkus: [],
displayInvalidSkus: []
};
this.trigger_('refreshSuccess', newData);
this.renderData = newData;
this.setLoading(false);
this.setDataResult(newData);
return;
}
// 请求 spu 下其他 sku 库存
this.xhr_.fetchJson(`/api/product/list?limit=${soldOutSpuIds.length}&${querySpuIds}`)
.then(res => {
const reselectSkus = [];
const invalidSkus = [];
// spu 维度展示
const displayInvalidSkus = [];
res.data.list.forEach(product => {
// spu 匹配, 存在多 sku 情况
const soldOutSkus = soldOutItems.filter(item => item.product_id === product.id);
if (!soldOutSkus.length) {
return;
}
// 通过失效 sku 获取 spu 下其他 sku 库存, 存在其他可用库存时标记为 "Reselect" 按钮可用
//const allowReselect = product.variants
// .filter(variant => variant.option1 === soldOutProduct.variant.option1 && variant.option2 === soldOutProduct.variant.option2 && variant.option3 === soldOutProduct.variant.option3)
// .some(variant => variant.available);
// 查询售罄 sku 对应商品是否可加购, 标记为 Reselect 可用项
if (product.available) {
reselectSkus.push(...soldOutSkus);
// 若商品不可用(全部 sku 售罄), 归纳到失效商品列表
} else {
invalidSkus.push(...soldOutSkus);
// spu 维度, 仅添加一项 sku
displayInvalidSkus.push(soldOutSkus[0]);
}
});
const newData = {
...data,
reselectSkus,
invalidSkus,
displayInvalidSkus
};
this.trigger_('refreshSuccess', newData);
this.renderData = newData;
this.setLoading(false);
this.setDataResult(newData);
})
.catch(err => {
this.setLoading(false);
console.error(err);
this.trigger_('refreshError', data);
}).finally(() => {
});
}
async deleteReselect(id, ignoreEmit) {
if (!id) {
return;
}
const targetSku = this.renderData.reselectSkus.find(item => item.id === id);
try {
const res = await this.xhr_.fetchJson(`/api/cart/${targetSku.variant_id}`, {
method: 'DELETE',
body: {
id: targetSku.id,
product_id: targetSku.product_id,
variant_id: targetSku.variant_id,
}
});
const newData = {
...this.renderData,
reselectSkus: this.renderData.reselectSkus.filter(item => item.id !== id),
};
this.renderData = newData;
!ignoreEmit && this.trigger_('deleteSuccess', newData);
} catch (err) {
console.error(err);
!ignoreEmit && this.trigger_('deleteError', err);
}
}
deleteInvalid(id) {
if (!id) {
return;
}
const targetSku = this.renderData.invalidSkus.find(item => item.id === id);
this.xhr_.fetchJson(`/api/cart/${targetSku.variant_id}`, {
method: 'DELETE',
body: {
id: targetSku.id,
product_id: targetSku.product_id,
variant_id: targetSku.variant_id,
}
})
.then(res => {
const newData = {
...this.renderData,
invalidSkus: this.renderData.invalidSkus.filter(item => item.id !== id),
displayInvalidSkus: this.renderData.displayInvalidSkus.filter(item => item.id !== id),
};
this.trigger_('deleteSuccess', newData);
this.renderData = newData;
})
.catch(err => {
console.error(err);
this.trigger_('deleteError', err);
});
}
// record reselect sku id before show reselect modal
setReselectRecordId(id) {
if (!id) {
return;
}
this.recordReselectId = id;
}
async deleteReselectRecordBeforeRefresh(data) {
if (!this.recordReselectId) {
return;
}
await this.deleteReselect(this.recordReselectId, true);
return {
...data,
ineffectives: data.ineffectives.filter(item => item.id !== this.recordReselectId)
}
}
clearNeedReselectRecord() {
this.needDeleteReselectRecord = false;
}
registerDeleteReselectTask(productData) {
const targetSku = this.renderData.reselectSkus.find(item => item.id === this.recordReselectId);
if (targetSku?.variant_id && productData?.variant.id) {
if (targetSku.variant_id === productData?.variant.id) {
this.needDeleteReselectRecord = false;
return;
}
}
this.needDeleteReselectRecord = true;
}
// pause cart refresh(trigger by similar products)
lockRefresh() {
if (this.refreshLock) {
return;
}
this.refreshLock = true;
}
releaseRefreshLock() {
if (!this.refreshLock) {
return;
}
this.refreshLock = false;
this.refreshWithCache();
}
// direct add_to_cart(trigger by similar products)
async manualAddToCart(id) {
const target = this.similarData.find(item => item.id === id);
this.lockRefresh();
try {
const res = await this.xhr_.fetchJson(`/api/cart`, {
method: 'POST',
body: {
note: '',
product_id: target.id,
quantity: '1',
variant_id: target.variants[0].id,
refer_info: {
source: 'add_to_cart'
}
}
});
const newCartItems = res.data.items;
this.setRefreshCache(newCartItems, true);
} catch (err) {
console.error(err);
}
}
syncSimilarData(data) {
this.similarData = data.data;
}
setRefreshCache(data, patch) {
if (patch) {
this.refreshDataCache = {
...this.refreshDataCache,
line_items: [...this.refreshDataCache.line_items, ...data]
};
} else {
this.refreshDataCache = data;
}
}
refreshWithCache() {
this.refresh(this.refreshDataCache);
}
mountCallback() {
}
unmountCallback() {
}
/**
* trigger event
* @param {Object} data
*/
trigger_(name, data) {
const event = SPZUtils.Event.create(this.win, `spz-custom-cart-sku.${name}`, {
data,
});
this.action_.trigger(this.element, name, event);
}
}
SPZ.defineElement('spz-custom-cart-sku', SPZCustomCartSku);
}())
(function () {
class SPZCustomCartTrack extends SPZ.BaseElement {
constructor(element) {
super(element);
this.action_ = SPZServices.actionServiceForDoc(this.element);
}
isLayoutSupported(layout) {
return true;
}
buildCallback() {
this.setupAction_();
}
hash(val) {
const hashKey = Object.keys(val).sort((a, b) => a - b).reduce((acc, k) => {
acc += `{'${k}':'${val[k]}'}`;
return acc;
}, '');
return hashKey;
}
trackExtra(key, value) {
console.log('trackExtra...', key, value);
if (!window.sa) {
return;
}
const hashKey = this.hash(value);
let hasExtraInfo = false;
if (window.sa.eventInfo && window.sa.eventInfo[key] && window.sa.eventInfo[key].extra_properties) {
hasExtraInfo = window.sa.eventInfo[key].extra_properties.some(p => {
return hashKey === this.hash(p);
});
}
if (hasExtraInfo) {
return;
}
window.sa && window.sa.registerExtraInfo(key, value);
}
delExtraTrack(key, value) {
const hashKey = this.hash(value);
if (window.sa.eventInfo && window.sa.eventInfo[key] && window.sa.eventInfo[key].extra_properties) {
window.sa.eventInfo[key].extra_properties = window.sa.eventInfo[key].extra_properties.filter(p => hashKey !== this.hash(p));
}
}
track(key, value) {
console.log('tracking...', key, value);
window.sa && window.sa.track(key, value);
}
setupAction_() {
this.registerAction('registerReselectAtc', () => {
this.trackExtra('add_to_cart', {
function_name: 'Farida',
action_type: 'reselect'
});
});
this.registerAction('clearReselectAtc', () => {
this.delExtraTrack('add_to_cart', {
function_name: 'Farida',
action_type: 'reselect'
});
});
this.registerAction('registerSimilarAtc', () => {
this.trackExtra('add_to_cart', {
function_name: 'Farida',
action_type: 'similar_product'
});
});
this.registerAction('clearSimilarAtc', () => {
this.delExtraTrack('add_to_cart', {
function_name: 'Farida',
action_type: 'similar_product'
});
});
const clickParams = {
business_type: 'product_plugin',
event_name: 'function_click',
function_name: 'Farida',
plugin_name: 'Farida',
template_name: 'cart',
template_type: '13',
module: 'online_store',
module_type: 'online_store',
tab_name: '',
card_name: '',
event_developer: 'ccbken',
event_type: 'click',
};
this.registerAction('trackDelReselect', () => {
this.track('function_click', {
...clickParams,
event_info: JSON.stringify({
action_type: 'cart_delete',
element_type: 'sku'
})
});
});
this.registerAction('trackClickReselect', () => {
this.track('function_click', {
...clickParams,
event_info: JSON.stringify({
action_type: 'reselect',
element_type: 'sku'
})
});
});
this.registerAction('trackDelSimilar', () => {
this.track('function_click', {
...clickParams,
event_info: JSON.stringify({
action_type: 'cart_delete',
element_type: 'spu'
})
});
});
this.registerAction('trackClickSimilar', () => {
this.track('function_click', {
...clickParams,
event_info: JSON.stringify({
action_type: 'reselect',
element_type: 'spu'
})
});
});
this.registerAction('trackOpenSimilar', () => {
this.track('function_expose', {
...clickParams,
event_name: 'function_expose',
event_type: 'expose',
event_info: JSON.stringify({
popup_name: 'farida_product_popup'
})
});
});
}
}
SPZ.defineElement('spz-custom-cart-track', SPZCustomCartTrack);
}())
