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order.js
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order.js
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/* Copyright(c) 2016 Philip Mulcahy. */
/* jshint strict: true, esversion: 6 */
const amazon_order_history_order = (function() {
'use strict';
class OrderTracker {
constructor() {
self.promises_by_id = {};
self.pending_ids = new Set();
}
constructorStarted(order_object) {
}
idKnown(id) {
}
detailPromiseResolved(id) {
}
paymentsPromiseResolved(id) {
}
}
const order_tracker = new OrderTracker();
function getField(xpath, doc, elem) {
const valueElem = amazon_order_history_util.findSingleNodeValue(xpath, doc, elem);
try {
return valueElem.textContent.trim();
} catch (_) {
return '?';
}
}
class Order {
constructor(ordersPageElem, request_scheduler) {
this.id = null;
order_tracker.constructorStarted(this);
this.date = null;
this.total = null;
this.who = null;
this.detail_promise = null;
this.items = null;
this.request_scheduler = request_scheduler;
this.extractOrder(ordersPageElem);
}
extractOrder(elem) {
const getItems = function(elem) {
/*
<a class="a-link-normal" href="/gp/product/B01NAE8AW4/ref=oh_aui_d_detailpage_o01_?ie=UTF8&psc=1">
The Rise and Fall of D.O.D.O.
</a>
or
<a class="a-link-normal" href="/gp/product/B06X9BZNDM/ref=oh_aui_d_detailpage_o00_?ie=UTF8&psc=1">
Provenance
</a>
but a-link-normal is more common than this, so we need to match on gp/product
like this: .//div[@class="a-row"]/a[@class="a-link-normal"][contains(@href,"/gp/product/")]
then we get:
name from contained text
link from href attribute
item: not sure what we use this for - will it still work?
*/
const itemResult = amazon_order_history_util.findMultipleNodeValues(
'.//div[@class="a-row"]/a[@class="a-link-normal"][contains(@href,"/gp/product/")]',
elem.ownerDocument,
elem);
const items = {};
itemResult.forEach(
function(item){
const name = item.innerText.replace(/[\n\r]/g, " ")
.replace(/ */g, " ")
.trim();
const link = item.getAttribute('href');
items[name] = link;
}
);
return items;
};
const doc = elem.ownerDocument;
this.date = date.normalizeDateString(
getField(
['Commande effectuée', 'Order placed'].map(
label => sprintf(
'.//div[contains(span,"%s")]' +
'/../div/span[contains(@class,"value")]',
label
)
).join('|'),
doc,
elem
)
);
this.total = getField('.//div[contains(span,"Total")]' +
'/../div/span[contains(@class,"value")]', doc, elem);
this.who = getField('.//div[contains(@class,"recipient")]' +
'//span[@class="trigger-text"]', doc, elem);
if (this.who === '?') {
this.who = 'N/A';
}
this.id = getField(
['Order #', 'commande'].map(
label => sprintf(
'.//div[contains(@class,"a-row")]' +
'[span[contains(@class,"label")]]' +
'[span[contains(@class,"value")]]' +
'[contains(span,"%s")]' +
'/span[contains(@class,"value")]',
label
)
).join(' | '),
doc,
elem
);
order_tracker.idKnown(this.id);
this.items = getItems(elem);
this.detail_promise = new Promise(
function(resolve, reject) {
const query = amazon_order_history_util.getOrderDetailUrl(this.id);
const event_converter = function(evt) {
const parser = new DOMParser();
const doc = parser.parseFromString(
evt.target.responseText, 'text/html'
);
const gift = function(){
let a = getField(
'//div[contains(@id,"od-subtotals")]//' +
'span[contains(text(),"Gift")]/' +
'parent::div/following-sibling::div/span',
doc,
doc.documentElement
);
let b;
if( a !== '?') {
return a.replace('-', '');
}
a = getField(
'//*[text()[contains(.,"Gift Certificate")]]',
doc,
doc.documentElement
);
if( a !== null ) {
b = a.match(
/Gift Certificate.Card Amount: *([$£€0-9.]*)/);
if( b !== null ) {
return b[1];
}
}
a = getField(
'//*[text()[contains(.,"Gift Card")]]',
doc,
doc.documentElement
);
if( a !== null ) {
b = a.match(
/Gift Card Amount: *([$£€0-9.]*)/);
if( b !== null ) {
return b[1];
}
}
return 'N/A';
}.bind(this);
const postage = function() {
let a = getField(
['Postage', 'Shipping', 'Livraison', 'Delivery'].map(
label => sprintf(
'//div[contains(@id,"od-subtotals")]//' +
'span[contains(text(),"%s")]/' +
'parent::div/following-sibling::div/span',
label
)
).join('|'),
doc,
doc.documentElement
);
if (a !== '?') {
return a;
}
return 'N/A';
}.bind(this);
const vat = function(){
let a = getField(
['VAT', 'tax', 'TVA'].map(
label => sprintf(
'//div[contains(@id,"od-subtotals")]//' +
'span[contains(text(),"%s") ' +
'and not(contains(text(),"Before") ' +
')]/' +
'parent::div/following-sibling::div/span',
label
)
).join('|'),
doc,
doc.documentElement
);
if( a !== '?') {
return a;
}
a = getField(
'//*[text()[contains(.,"VAT") and not(contains(.,"Before"))]]',
doc,
doc.documentElement
);
if( a !== null ) {
const b = a.match(
/VAT: *([-$£€0-9.]*)/);
if( b !== null ) {
return b[1];
}
}
a = getField(
'//div[contains(@class,"a-row pmts-summary-preview-single-item-amount")]//' +
'span[contains(text(),"VAT")]/' +
'parent::div/following-sibling::div/span',
doc,
doc.documentElement
);
if( a !== null ) {
const c = a.match(
/VAT: *([-$£€0-9.]*)/);
if( c !== null ) {
return c[1];
}
}
return 'N/A';
}.bind(this);
const us_tax = function(){
let a = getField(
'//div[contains(@id,"od-subtotals")]//' +
'span[contains(text(),"tax") ' +
'and not(contains(text(),"before") ' +
')]/' +
'parent::div/following-sibling::div/span',
doc,
doc.documentElement
);
if( a !== '?') {
return a;
}
a = getField(
'//*[text()[contains(.,"tax") and not(contains(.,"before"))]]',
doc,
doc.documentElement
);
if( a !== null ) {
const b = a.match(
/VAT: *([-$£€0-9.]*)/);
if( b !== null ) {
return b[1];
}
}
a = getField(
'//div[contains(@class,"a-row pmts-summary-preview-single-item-amount")]//' +
'span[contains(text(),"tax")]/' +
'parent::div/following-sibling::div/span',
doc,
doc.documentElement
);
if( a !== null ) {
const c = a.match(
/tax: *([-$£€0-9.]*)/);
if( c !== null ) {
return c[1];
}
}
return 'N/A';
}.bind(this);
const cad_gst = function() {
let a = getField(
['GST', 'HST'].map(
label => sprintf(
'//div[contains(@id,"od-subtotals")]//' +
'span[contains(text(),"%s") and not(contains(.,"Before"))]/' +
'parent::div/following-sibling::div/span',
label
)
).join('|'),
doc,
doc.documentElement
);
if( a !== '?') {
return a;
}
a = getField(
'//*[text()[contains(.,"GST") and not(contains(.,"Before"))]]',
doc,
doc.documentElement
);
if( a !== null ) {
const b = a.match(
/VAT: *([-$£€0-9.]*)/);
if( b !== null ) {
return b[1];
}
}
a = getField(
'//div[contains(@class,"a-row pmts-summary-preview-single-item-amount")]//' +
'span[contains(text(),"GST")]/' +
'parent::div/following-sibling::div/span',
doc,
doc.documentElement
);
if( a !== null ) {
const c = a.match(
/VAT: *([-$£€0-9.]*)/);
if( c !== null ) {
return c[1];
}
}
return 'N/A';
}.bind(this);
const cad_pst = function(){
let a = getField(
['PST', 'RST', 'QST'].map(
label => sprintf(
'//div[contains(@id,"od-subtotals")]//' +
'span[contains(text(),"%s") and not(contains(.,"Before"))]/' +
'parent::div/following-sibling::div/span',
label
)
).join('|'),
doc,
doc.documentElement
);
if( a !== '?') {
return a;
}
a = getField(
'//*[text()[contains(.,"PST") and not(contains(.,"Before"))]]',
doc,
doc.documentElement
);
if( a !== null ) {
const b = a.match(
/VAT: *([-$£€0-9.]*)/);
if( b !== null ) {
return b[1];
}
}
a = getField(
'//div[contains(@class,"a-row pmts-summary-preview-single-item-amount")]//' +
'span[contains(text(),"PST")]/' +
'parent::div/following-sibling::div/span',
doc,
doc.documentElement
);
if( a !== null ) {
const c = a.match(
/VAT: *([-$£€0-9.]*)/);
if( c !== null ) {
return c[1];
}
}
return 'N/A';
}.bind(this);
const refund = function () {
let a = getField(
['Refund'].map( //TODO other field names?
label => sprintf(
'//div[contains(@id,"od-subtotals")]//' +
'span[contains(text(),"%s")]/' +
'ancestor::div[1]/following-sibling::div/span',
label
)
).join('|'),
doc,
doc.documentElement
);
if (a !== '?') {
return a;
}
return 'N/A';
}.bind(this);
return {
postage: postage(),
gift: gift(),
us_tax: us_tax(),
vat: vat(),
gst: cad_gst(),
pst: cad_pst(),
refund: refund()
};
}.bind(this);
this.request_scheduler.schedule(
query,
event_converter,
order_details => {
order_tracker.detailPromiseResolved(this.id);
resolve(order_details);
},
this.id
);
}.bind(this)
);
this.payments_promise = new Promise(
function(resolve, reject) {
if (this.id.startsWith("D")) {
order_tracker.paymentsPromiseResolved(this.id);
resolve([ this.date + ": " + this.total]);
} else {
const query = amazon_order_history_util.getOrderPaymentUrl(this.id);
const event_converter = function(evt) {
const parser = new DOMParser();
const doc = parser.parseFromString(
evt.target.responseText, "text/html"
);
const payments = amazon_order_history_util.findMultipleNodeValues(
[
'Credit Card transactions',
'Transactions de carte de crédit'
].map(
label => sprintf(
'//b[contains(text(),"%s")]/' +
'../../..//td[contains(text(),":")]/..',
label
)
).join('|'),
doc,
doc
).map(function(row){
return row.textContent
.replace(/[\n\r]/g, ' ')
.replace(/ */g, '\xa0') //
.trim();
});
return payments;
}.bind(this);
this.request_scheduler.schedule(
query,
event_converter,
payments => {
order_tracker.paymentsPromiseResolved(this.id);
resolve(payments);
},
this.id
);
}
}.bind(this)
);
}
/**
* Creates an html element suitable for embedding into a table cell
* but doesn't actually embed it.
* @param {document} doc. DOM document needed to create elements.
*/
itemsHtml(doc) {
const ul = doc.createElement('ul');
for(let title in this.items) {
if(this.items.hasOwnProperty(title)) {
const li = doc.createElement('li');
ul.appendChild(li);
const a = doc.createElement('a');
li.appendChild(a);
a.textContent = title + '; ';
a.href = this.items[title];
}
}
return ul;
}
}
function getOrdersForYearAndQueryTemplate(year, query_template, request_scheduler) {
let expected_order_count = null;
let order_found_callback = null;
let check_complete_callback = null;
const order_promises = [];
const sendGetOrderCount = function() {
request_scheduler.schedule(
generateQueryString(0),
convertOrdersPage,
receiveOrdersCount,
'00000'
);
};
const generateQueryString = function(startOrderPos) {
return sprintf(
query_template,
{
site: amazon_order_history_util.getSite(),
year: year,
startOrderPos: startOrderPos
}
);
};
const convertOrdersPage = function(evt) {
const p = new DOMParser();
const d = p.parseFromString(evt.target.responseText, 'text/html');
const countSpan = amazon_order_history_util.findSingleNodeValue(
'.//span[@class="num-orders"]', d, d);
if (countSpan == null) {
console.warn(
'Error: cannot find order count elem in: ' + evt.target.responseText
);
}
expected_order_count = parseInt(
countSpan.textContent.split(' ')[0], 10);
console.log(
'Found ' + expected_order_count + ' orders for ' + year
);
if(isNaN(expected_order_count)) {
console.warn(
'Error: cannot find order count in ' + countSpan.textContent
);
}
let ordersElem;
try {
ordersElem = d.getElementById('ordersContainer');
} catch(err) {
console.warn(
'Error: maybe you\'re not logged into ' +
'https://' + amazon_order_history_util.getSite() + '/gp/css/order-history ' +
err
);
return;
}
const order_elems = amazon_order_history_util.findMultipleNodeValues(
'.//*[contains(concat(" ", ' +
'normalize-space(@class), ' +
'" "), ' +
'" order ")]',
d,
ordersElem
);
order_elems.forEach(elem => Object.freeze(elem));
return {
expected_order_count: expected_order_count,
order_elems: order_elems,
};
};
const receiveOrdersCount = function(orders_page_data) {
expected_order_count = orders_page_data.expected_order_count;
check_complete_callback();
// TODO: restore efficiency - the first ten orders are visible in the page we got expected_order_count from.
for(let iorder = 0; iorder < expected_order_count; iorder += 10) {
console.log(
'sending request for order: ' + iorder + ' onwards'
);
request_scheduler.schedule(
generateQueryString(iorder),
convertOrdersPage,
receiveOrdersPageData,
'2'
);
}
};
const receiveOrdersPageData = function(orders_page_data) {
const order_elems = orders_page_data.order_elems;
function makeOrderPromise(elem) {
const order = amazon_order_history_order.create(elem, request_scheduler);
return Promise.resolve(order);
}
order_elems.forEach(
elem => order_found_callback( makeOrderPromise(elem) )
);
};
// Promise to array of Order Promise.
return new Promise(
(resolve, reject) => {
check_complete_callback = function() {
console.log('check_complete_callback() actual:' + order_promises.length + ' expected:' + expected_order_count);
if(order_promises.length === expected_order_count) {
console.log('resolving order_promises for ' + year);
resolve(order_promises);
console.log('resolved order_promises for ' + year);
}
};
order_found_callback = function(order_promise) {
order_promises.push(order_promise);
order_promise.then( order => {
// TODO is "Fetching" the right message for this stage?
console.log('amazon_order_history_order Fetching ' + order.id);
});
console.log(
'YearFetcher(' + year + ') order_promises.length:' +
order_promises.length +
' expected_order_count:' +
expected_order_count
);
check_complete_callback();
};
sendGetOrderCount();
}
);
}
function fetchYear(year, request_scheduler) {
const templates = {
'smile.amazon.co.uk': ['https://%(site)s/gp/css/order-history' +
'?opt=ab&digitalOrders=1' +
'&unifiedOrders=1' +
'&returnTo=' +
'&orderFilter=year-%(year)s' +
'&startIndex=%(startOrderPos)s'],
'www.amazon.co.uk': ['https://%(site)s/gp/css/order-history' +
'?opt=ab&digitalOrders=1' +
'&unifiedOrders=1' +
'&returnTo=' +
'&orderFilter=year-%(year)s' +
'&startIndex=%(startOrderPos)s'],
'smile.amazon.de': ['https://%(site)s/gp/css/order-history' +
'?opt=ab&digitalOrders=1' +
'&unifiedOrders=1' +
'&returnTo=' +
'&orderFilter=year-%(year)s' +
'&startIndex=%(startOrderPos)s' +
'&language=en_GB'],
'www.amazon.de': ['https://%(site)s/gp/css/order-history' +
'?opt=ab&digitalOrders=1' +
'&unifiedOrders=1' +
'&returnTo=' +
'&orderFilter=year-%(year)s' +
'&startIndex=%(startOrderPos)s' +
'&language=en_GB'],
'www.amazon.in': ['https://%(site)s/gp/css/order-history' +
'?opt=ab&digitalOrders=1' +
'&unifiedOrders=1' +
'&returnTo=' +
'&orderFilter=year-%(year)s' +
'&startIndex=%(startOrderPos)s' +
'&language=en_GB'],
'www.amazon.it': ['https://%(site)s/gp/css/order-history' +
'?opt=ab&digitalOrders=1' +
'&unifiedOrders=1' +
'&returnTo=' +
'&orderFilter=year-%(year)s' +
'&startIndex=%(startOrderPos)s' +
'&language=en_GB'],
'smile.amazon.ca': ['https://%(site)s/gp/css/order-history' +
'?opt=ab&digitalOrders=1' +
'&unifiedOrders=1' +
'&returnTo=' +
'&orderFilter=year-%(year)s' +
'&startIndex=%(startOrderPos)s'],
'www.amazon.ca': ['https://%(site)s/gp/css/order-history' +
'?opt=ab&digitalOrders=1' +
'&unifiedOrders=1' +
'&returnTo=' +
'&orderFilter=year-%(year)s' +
'&startIndex=%(startOrderPos)s'],
'smile.amazon.fr': ['https://%(site)s/gp/css/order-history' +
'?opt=ab&digitalOrders=1' +
'&unifiedOrders=1' +
'&returnTo=' +
'&orderFilter=year-%(year)s' +
'&startIndex=%(startOrderPos)s'],
'www.amazon.fr': ['https://%(site)s/gp/css/order-history' +
'?opt=ab&digitalOrders=1' +
'&unifiedOrders=1' +
'&returnTo=' +
'&orderFilter=year-%(year)s' +
'&startIndex=%(startOrderPos)s'],
'smile.amazon.com': ['https://%(site)s/gp/css/order-history' +
'?opt=ab&digitalOrders=1' +
'&unifiedOrders=1' +
'&returnTo=' +
'&orderFilter=year-%(year)s' +
'&startIndex=%(startOrderPos)s'],
'www.amazon.com': [
'https://%(site)s/gp/your-account/order-history/ref=oh_aui_menu_date' +
'?ie=UTF8' +
'&orderFilter=year-%(year)s' +
'&startIndex=%(startOrderPos)s',
'https://%(site)s/gp/your-account/order-history/ref=oh_aui_menu_yo_new_digital' +
'?ie=UTF8' +
'&digitalOrders=1' +
'&orderFilter=year-%(year)s' +
'&unifiedOrders=0' +
'&startIndex=%(startOrderPos)s',
],
}[amazon_order_history_util.getSite()];
const promises_to_promises = templates.map(
template => getOrdersForYearAndQueryTemplate(year, template, request_scheduler)
);
return Promise.all( promises_to_promises )
.then( array2_of_promise => {
const order_promises = [];
array2_of_promise.forEach( promises => {
promises.forEach( promise => {
order_promises.push(promise);
});
});
return order_promises;
});
}
/* Returns array of Order Promise */
function getOrdersByYear(years, request_scheduler) {
// At return time we may not know how many orders there are, only
// how many years in which orders have been queried for.
return Promise.all(
years.map(
function(year) {
return fetchYear(year, request_scheduler);
}
)
).then(
array2_of_order_promise => {
// Flatten the array of arrays of Promise<Order> into
// an array of Promise<Order>.
return [].concat.apply(
[],
array2_of_order_promise
);
}
);
}
return {
create: function(ordersPageElem, request_scheduler) {
return new Order(ordersPageElem, request_scheduler);
},
// Return Array of Order Promise.
getOrdersByYear: getOrdersByYear
};
})();