feat: add EpicGames get FreeGames (#3196)

lib/router.js

@@ -1,6 +1,23 @@
 const Router = require('koa-router');
 const router = new Router();
 
+// 遍历整个 routes 文件夹，导入模块路由 router.js 和 router-custom.js 文件
+// 格式参考用例：routes/epicgames/router.js
+const RouterPath = require('require-all')({
+    dirname: __dirname + '/routes',
+    filter: /^.*router([-_]custom[s]?)?\.js$/,
+});
+
+// 将收集到的自定义模块路由进行合并
+for (const project in RouterPath) {
+    for (const routerName in RouterPath[project]) {
+        const proRouter = RouterPath[project][routerName]();
+        proRouter.stack.forEach((nestedLayer) => {
+            router.stack.push(nestedLayer);
+        });
+    }
+}
+
 // index
 router.get('/', require('./routes/index'));
 

lib/routes/epicgames/index.js

@@ -0,0 +1,73 @@
+const got = require('@/utils/got');
+
+const supportedList = require('./supportedList');
+
+module.exports = async (ctx) => {
+    // 获取用户传递进来的参数。
+    // 此处 supportedList.js 文件中的可选项 collection 值只有"freegames"可选
+    const collection = ctx.params.collection;
+
+    const config = supportedList[collection.toLowerCase()];
+
+    const desc = 'Epic 游戏限免';
+
+    const link = config.link;
+    const homeLink = config.homeLink;
+    const content = config.jsonData;
+
+    const response = await got({
+        method: 'post',
+        url: link,
+        headers: {
+            Referer: homeLink,
+            'Content-Type': 'application/json; charset=utf-8',
+            'Content-Length': content.length,
+        },
+        data: content,
+    });
+
+    const data = response.data.data;
+
+    let item = new Map();
+    const out = new Array();
+    let notHaveImageUrl = true;
+    data.Catalog.catalogOffers.elements.map((element) => {
+        if (element.promotions.promotionalOffers.length !== 0) {
+            element.promotions.promotionalOffers.forEach((isPromotionalOffer) => {
+                if (isPromotionalOffer.promotionalOffers.length !== 0) {
+                    isPromotionalOffer.promotionalOffers.forEach((havePromotionalOffer) => {
+                        if (havePromotionalOffer.discountSetting.discountType === 'PERCENTAGE' && havePromotionalOffer.discountSetting.discountPercentage === 0) {
+                            item = {
+                                title: element.title,
+                                link: `https://www.epicgames.com/store/zh-CN/product/${element.productSlug}`,
+                                pubDate: new Date(havePromotionalOffer.startDate).toUTCString(),
+                            };
+                        }
+                        if (element.keyImages.length !== 0) {
+                            element.keyImages.forEach((imageUrl) => {
+                                if (imageUrl.type === 'DieselStoreFrontWide') {
+                                    item.description = `${element.description}<br><img src="${imageUrl.url}">`;
+                                    notHaveImageUrl = false;
+                                }
+                            });
+                        }
+                        if (notHaveImageUrl) {
+                            item.description = element.description;
+                        }
+                    });
+                }
+            });
+            out.push(item);
+            item = {};
+        }
+        return true;
+    });
+    // out.pop(undefined);
+
+    ctx.state.data = {
+        title: desc,
+        link: homeLink,
+        description: desc,
+        item: out,
+    };
+};

lib/routes/epicgames/router.js

@@ -0,0 +1,9 @@
+// 文件名必须为 router.js。
+// Epic Games
+
+module.exports = () => {
+    const Router = require('koa-router');
+    const router = new Router();
+    router.get('/epicgames/:collection', require('./index'));
+    return router;
+};

lib/routes/epicgames/supportedList.js

@@ -0,0 +1,18 @@
+module.exports = {
+    freegames: {
+        collection: 'freegames',
+        collectionCN: '免费游戏',
+        homeLink: 'https://www.epicgames.com/store/zh-CN/',
+        // link: 'https://www.epicgames.com/store/zh-CN/collection/free-games-collection',
+        link: 'https://graphql.epicgames.com/graphql',
+        jsonData: JSON.stringify({
+            query:
+                '\n          query promotionsQuery($namespace: String!, $country: String!, $locale: String!) {\n            Catalog {\n              catalogOffers(namespace: $namespace, locale: $locale, params: {category: "freegames", country: $country, sortBy: "effectiveDate", sortDir: "asc"}) {\n                elements {\n                  title\n                  description\n                  id\n                  namespace\n                  categories {\n                    path\n                  }\n                  keyImages {\n                    type\n                    url\n                  }\n                  productSlug\n                  promotions {\n                    promotionalOffers {\n                      promotionalOffers {\n                        startDate\n                        endDate\n                        discountSetting {\n                          discountType\n                          discountPercentage\n                        }\n                      }\n                    }\n                    upcomingPromotionalOffers {\n                      promotionalOffers {\n                        startDate\n                        endDate\n                        discountSetting {\n                          discountType\n                          discountPercentage\n                        }\n                      }\n                    }\n                  }\n                }\n              }\n            }\n          }\n        ',
+            variables: {
+                namespace: 'epic',
+                country: 'US',
+                locale: 'zh-CN',
+            },
+        }),
+    },
+};

package.json

@@ -93,6 +93,7 @@
     "puppeteer": "1.20.0",
     "query-string": "6.8.3",
     "redis": "2.8.0",
+    "require-all": "^3.0.0",
     "rss-parser": "3.7.2",
     "sharp": "0.23.1",
     "socks-proxy-agent": "4.0.2",