From e323cb683085bbf6c29833ba374b73aea3e3895a Mon Sep 17 00:00:00 2001
From: Evan <yif.wang@icloud.com>
Date: Tue, 26 Jul 2022 07:51:21 -0700
Subject: [PATCH] feat(route):  leetcode.com daily question (#10296)

* feat: leetcode.com daily question

* feat: add docs support

* chore(leetcode): use template literal to write GraphQL

* feat(leetcode): add en docs

* Update docs/en/programming.md

Co-authored-by: Tony <TonyRL@users.noreply.github.com>

* chore(leetcode): format graphql string

* chore(leetcode): format redundant graphql string
---
 docs/en/programming.md                        |   4 +
 docs/programming.md                           |   4 +
 lib/v2/leetcode/dailyquestion-en.js           | 116 ++++++++++++++++++
 lib/v2/leetcode/maintainer.js                 |   3 +
 lib/v2/leetcode/router.js                     |   3 +
 .../templates/question-description.art        |   6 +
 6 files changed, 136 insertions(+)
 create mode 100644 lib/v2/leetcode/dailyquestion-en.js
 create mode 100644 lib/v2/leetcode/maintainer.js
 create mode 100644 lib/v2/leetcode/router.js
 create mode 100644 lib/v2/leetcode/templates/question-description.art

diff --git a/docs/en/programming.md b/docs/en/programming.md
index 497943bad8..7dbddce89d 100644
--- a/docs/en/programming.md
+++ b/docs/en/programming.md
@@ -305,6 +305,10 @@ Subscribe to the updates (threads and submission) from a paritcular Hacker News
 
 <RouteEn author="NathanDai" example="/leetcode/submission/us/nathandai" path="/leetcode/submission/:country/:user" :paramsDesc="['country, Chines(cn) and US(us)', 'Username, available at the URL of the LeetCode user homepage']"/>
 
+### Daily Question
+
+<RouteEn author="NavePnow" example="/leetcode/dailyquestion/en" path="/leetcode/dailyquestion/en"/>
+
 ## Linux Patchwork
 
 ### Patch Comments
diff --git a/docs/programming.md b/docs/programming.md
index 756a697fc9..6a7ce49e50 100644
--- a/docs/programming.md
+++ b/docs/programming.md
@@ -447,6 +447,10 @@ GitHub 官方也提供了一些 RSS:
 
 <Route author="NathanDai" example="/leetcode/submission/us/nathandai" path="/leetcode/submission/:country/:user" :paramsDesc="['国家 country, 中国(cn)和美国(us)', '用户名 user, 可在LeetCode用户主页的 URL 中找到']"/>
 
+### 每日一题
+
+<Route author="NavePnow" example="/leetcode/dailyquestion/en" path="/leetcode/dailyquestion/en"/>
+
 ## LinkedKeeper
 
 ### 博文
diff --git a/lib/v2/leetcode/dailyquestion-en.js b/lib/v2/leetcode/dailyquestion-en.js
new file mode 100644
index 0000000000..b6b81ef436
--- /dev/null
+++ b/lib/v2/leetcode/dailyquestion-en.js
@@ -0,0 +1,116 @@
+const got = require('@/utils/got');
+const { art } = require('@/utils/render');
+const path = require('path');
+
+const host = 'https://leetcode.com';
+
+module.exports = async (ctx) => {
+    const question = {
+        date: '',
+        link: '',
+        titleSlug: '',
+        content: '',
+        frontedId: '',
+        difficulty: '',
+        tags: '',
+    };
+    const url = host + '/graphql';
+    const dailyQuestionPayload = {
+        query: `query questionOfToday {
+            activeDailyCodingChallengeQuestion {
+                date
+                link
+                question {
+                    frontendQuestionId: questionFrontendId
+                    titleSlug
+                }
+            }
+        } `,
+        variables: {},
+    };
+    const dailyQuestionResponse = await got({
+        method: 'post',
+        url,
+        headers: {
+            'content-type': 'application/json',
+        },
+        body: JSON.stringify(dailyQuestionPayload),
+    });
+    const data = dailyQuestionResponse.data.data.activeDailyCodingChallengeQuestion;
+    question.date = data.date;
+    question.link = host + data.link;
+    question.titleSlug = data.question.titleSlug;
+
+    const detailsPayload = {
+        operationName: 'questionData',
+        query: `query questionData($titleSlug: String!) {
+            question(titleSlug: $titleSlug) {
+                questionId
+                questionFrontendId
+                title
+                titleSlug
+                content
+                translatedTitle
+                translatedContent
+                difficulty
+                topicTags {
+                    name
+                    slug
+                    translatedName
+                    __typename
+                }
+                __typename
+            }
+        }`,
+        variables: {
+            titleSlug: question.titleSlug,
+        },
+    };
+    const detailsResponse = await got({
+        method: 'post',
+        url,
+        headers: {
+            'content-type': 'application/json',
+        },
+        body: JSON.stringify(detailsPayload),
+    });
+    const emoji = {
+        Medium: '🟡',
+        Easy: '🟢',
+        Hard: '🔴',
+    };
+
+    const details = detailsResponse.data.data.question;
+    question.content = details.content;
+    question.frontedId = details.questionFrontendId;
+    question.difficulty = emoji[details.difficulty];
+
+    let topicTags = details.topicTags;
+    topicTags = topicTags.map((item) => {
+        let slug = '#' + item.slug;
+        slug = slug.replaceAll('-', '_');
+        return slug;
+    });
+    question.tags = topicTags.join(' ');
+
+    const rssData = {
+        title: question.frontedId + '.' + question.titleSlug,
+        description: art(path.join(__dirname, 'templates/question-description.art'), {
+            question,
+        }),
+        link: question.link,
+    };
+
+    ctx.state.data = {
+        title: 'LeetCode Daily Question',
+        link: 'https://leetcode.com',
+        description: 'Leetcode Daily Question',
+        item: [
+            {
+                title: rssData.title,
+                description: rssData.description + question.content,
+                link: rssData.link,
+            },
+        ],
+    };
+};
diff --git a/lib/v2/leetcode/maintainer.js b/lib/v2/leetcode/maintainer.js
new file mode 100644
index 0000000000..6162804426
--- /dev/null
+++ b/lib/v2/leetcode/maintainer.js
@@ -0,0 +1,3 @@
+module.exports = {
+    '/dailyquestion/en': ['NavePnow'],
+};
diff --git a/lib/v2/leetcode/router.js b/lib/v2/leetcode/router.js
new file mode 100644
index 0000000000..25ef26e010
--- /dev/null
+++ b/lib/v2/leetcode/router.js
@@ -0,0 +1,3 @@
+module.exports = function (router) {
+    router.get('/dailyquestion/en', require('./dailyquestion-en'));
+};
diff --git a/lib/v2/leetcode/templates/question-description.art b/lib/v2/leetcode/templates/question-description.art
new file mode 100644
index 0000000000..a2ee543656
--- /dev/null
+++ b/lib/v2/leetcode/templates/question-description.art
@@ -0,0 +1,6 @@
+<div>
+    {{question.difficulty}} {{question.date}}
+    <br><br>
+    {{question.tags}}
+    <br><br>
+</div>