Add AutoTrader (#999)

docs/README.md

@@ -2104,3 +2104,12 @@ IATA 国际航空运输协会机场代码, 参见[维基百科 国际航空运
 
 <route name="分类筛选" author="MegrezZhu" example="/nhentai/language/chinese" path="/nhentai/:key/:keyword" :paramsDesc="['筛选条件，可选: parody, character, tag, artist, group, language, category','筛选值']" />
 <route name="高级搜索" author="MegrezZhu" example="/nhentai/search/language%3Ajapanese+-scat+-yaoi+-guro+-&quote;mosaic+censorship&quote;" path="/nhentai/search/:keyword" :paramsDesc="['用于搜索的关键词。可在原网站搜索后复制 q= 后面的内容，也可直接输入，但空格等特殊符号是否会转换取决于浏览器和阅读器的实现。用法详见[官网](https://nhentai.net/info/)']" />
+
+### AutoTrader
+
+<route name="搜索结果" author="HenryQW" example="/autotrader/radius=50&postcode=sw1a1aa&onesearchad=Used&onesearchad=Nearly%20New&onesearchad=New&price-to=9000&year-from=2012&body-type=Hatchback&transmission=Automatic&exclude-writeoff-categories=on" path="/autotrader/:query" :paramsDesc="['查询语句']">
+
+1. 在 AutoTrader 选择筛选条件进行搜索
+1. 复制查询结果 URL 中`?`后的部分，例如 `https://www.autotrader.co.uk/car-search?radius=50&postcode=sw1a1aa&onesearchad=Used&onesearchad=Nearly%20New&onesearchad=New&price-to=9000&year-from=2012&body-type=Hatchback&transmission=Automatic&exclude-writeoff-categories=on` 则为 `radius=50&postcode=sw1a1aa&onesearchad=Used&onesearchad=Nearly%20New&onesearchad=New&price-to=9000&year-from=2012&body-type=Hatchback&transmission=Automatic&exclude-writeoff-categories=on`
+
+</route>

docs/en/README.md

@@ -375,3 +375,12 @@ Provides a better reading experience (full text articles) over the official one.
 ### 99% Invisible
 
 <routeEn name="Transcript" author="Ji4n1ng" example="/99percentinvisible/transcript" path="/99percentinvisible/transcript"/>
+
+### AutoTrader
+
+<routeEn name="Search" author="HenryQW" example="/autotrader/radius=50&postcode=sw1a1aa&onesearchad=Used&onesearchad=Nearly%20New&onesearchad=New&price-to=9000&year-from=2012&body-type=Hatchback&transmission=Automatic&exclude-writeoff-categories=on" path="/autotrader/:query" :paramsDesc="['the search query']">
+
+1. Conduct a search with desired filters on AutoTrader
+1. Copy everything in the URL after `?`, for example: `https://www.autotrader.co.uk/car-search?radius=50&postcode=sw1a1aa&onesearchad=Used&onesearchad=Nearly%20New&onesearchad=New&price-to=9000&year-from=2012&body-type=Hatchback&transmission=Automatic&exclude-writeoff-categories=on` will produce `radius=50&postcode=sw1a1aa&onesearchad=Used&onesearchad=Nearly%20New&onesearchad=New&price-to=9000&year-from=2012&body-type=Hatchback&transmission=Automatic&exclude-writeoff-categories=on`
+
+</routeEn>

router.js

@@ -715,4 +715,7 @@ router.get('/oilprice/:area', require('./routes/oilprice'));
 router.get('/nhentai/search/:keyword', require('./routes/nhentai/search'));
 router.get('/nhentai/:key/:keyword', require('./routes/nhentai/other'));
 
+// Auto Trader
+router.get('/autotrader/:query', require('./routes/autotrader'));
+
 module.exports = router;

routes/autotrader/index.js

@@ -0,0 +1,75 @@
+const axios = require('../../utils/axios');
+const cheerio = require('cheerio');
+
+module.exports = async (ctx) => {
+    const link = `https://www.autotrader.co.uk/results-car-search?${ctx.params.query}`;
+    const response = await axios.get(link);
+
+    const $ = cheerio.load(response.data.html);
+
+    const idList = $('li.search-page__result')
+        .slice(0, 10)
+        .get();
+
+    const items = await Promise.all(
+        idList.map(async (item) => {
+            const link = `https://www.autotrader.co.uk/classified/advert/${item.attribs.id}`;
+
+            const cache = await ctx.cache.get(link);
+
+            if (cache) {
+                return Promise.resolve(JSON.parse(cache));
+            }
+
+            const response = await axios.get(link);
+            const $ = cheerio.load(response.data);
+
+            let keyFacts = '<table><tr>';
+            $('.keyFacts__list .keyFacts__label').each((i, e) => {
+                keyFacts += `<td>${$(e).text()}</td>`;
+                if ((i + 1) % 4 === 0) {
+                    keyFacts += '</tr><tr>';
+                }
+            });
+            keyFacts += '</tr><tr>';
+
+            $('.fpaSpecifications__economy .fpaSpecifications__listItem').each((i, e) => {
+                keyFacts += `<td>${$(e)
+                    .find('.fpaSpecifications__term')
+                    .text()}: ${$(e)
+                    .find('.fpaSpecifications__description')
+                    .text()}</td>`;
+                if ((i + 1) % 4 === 0) {
+                    keyFacts += '</tr><tr>';
+                }
+            });
+
+            keyFacts += '</tr></table><br/>';
+
+            let images = '';
+
+            $('.fpa-image-overlay img').each((i, e) => {
+                images += `<img src='${$(e).attr('data-src')}'/><br/>`;
+            });
+
+            const description = keyFacts + images + $('meta[name="og:description"]').attr('content');
+
+            const title = `「${$('.fpaGallery__priceLabel').text()}」${$('meta[name="og:title"]').attr('content')}`;
+
+            const single = {
+                title,
+                description,
+                pubDate: new Date().toISOString(),
+                link,
+            };
+            ctx.cache.set(link, JSON.stringify(single), 2 * 60 * 60);
+            return Promise.resolve(single);
+        })
+    );
+
+    ctx.state.data = {
+        title: 'Auto Trader',
+        link,
+        item: items,
+    };
+};