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Commit e84289c

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move to ES6
1 parent a083b73 commit e84289c

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1 file changed

+113
-127
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1 file changed

+113
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‎generate.js‎

Lines changed: 113 additions & 127 deletions
Original file line numberDiff line numberDiff line change
@@ -1,158 +1,144 @@
1-
// command: git update-index --assume-unchanged generate.js
21
// to make Git not to track this file anymore
3-
// 还原: git update-index --no-assume-unchanged generate.js
4-
5-
// Notice:
6-
// 注意这个 Cookie 要取 https://leetcode.com/api/problems/algorithms/ 下的
7-
// 而不是 https://leetcode.com/ 下的
8-
var Cookie = "OUTFOX_SEARCH_USER_ID_NCOO=1270182585.150294; LEETCODE_SESSION=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VybmFtZSI6ImhhbnppY2hpIiwidXNlcl9zbHVnIjoiaGFuemljaGkiLCJfYXV0aF91c2VyX2lkIjoiMjA3MDc0IiwidGltZXN0YW1wIjoiMjAxNy0wMi0xNiAxMTo0MToxOS45MTI2NjcrMDA6MDAiLCJfYXV0aF91c2VyX2JhY2tlbmQiOiJkamFuZ28uY29udHJpYi5hdXRoLmJhY2tlbmRzLk1vZGVsQmFja2VuZCIsImlkIjoyMDcwNzQsIl9zZXNzaW9uX2V4cGlyeSI6MCwiX2F1dGhfdXNlcl9oYXNoIjoiNjc3MzIyNDNmMGY4YzJmZTA1YTAwZDJlYzdhNzYwY2I4Y2FmN2NiNiIsImVtYWlsIjoiYmlnYmlnc3VucmlzZUBmb3htYWlsLmNvbSJ9.Howj_ZPQs9IAE22zfV4Ly_KwPZzD4w5W2-Sz_wp1Bbs; express.sid=s%3AuAx1lTlxg2OTvH1If4gvyZUpScHCQg42.L8TvyU2du93TkKd4KxDB7%2Bl6r%2FFR%2F%2FSBEZYyxBouiAw; csrftoken=bmPSY3AtNuo4iKpQ5KLfU0ElDX7AYka5iVQ8WgxNsJbepIdruoSvkQBfutFOXHXB; _ga=GA1.2.474225388.1483455439; __atuvc=8%7C5%2C43%7C6%2C23%7C7%2C0%7C8%2C23%7C9; __atuvs=58b68ccb38902096002"
9-
var superagent = require("superagent");
10-
var cheerio = require("cheerio");
11-
var fs = require("fs");
12-
13-
// collect items
14-
var ans = [];
15-
var solvedNum = 0;
16-
var problemNum = 0;
17-
var lockedNum = 0;
18-
19-
function makeMarkdownFile() {
20-
var str = '';
21-
str += '# Leetcode Solutions in JavaScript';
22-
str += '\n';
23-
str += "Update time: " + new Date;
24-
str += '\n\n';
25-
str += "I have solved **" + solvedNum + " / " + problemNum + "** problems ";
26-
str += "while **" + lockedNum + "** problems are still locked."
27-
str += '\n\n';
28-
str += 'If you have any question, please give me an [issue](https://github.com/hanzichi/leetcode/issues).';
29-
str += '\n\n';
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str += 'If you are loving solving leetcode problems in JavaScript, please contact me to enjoy it together!'
31-
str += '\n\n';
32-
str += '(Notes: :blue_book: means you need to buy a book from Leetcode)';
33-
str += '\n\n';
34-
str += '| # | Title | Source Code | Explanation | Difficulty |';
35-
str += '\n';
36-
str += '|:---:|:---:|:---:|:---:|:---:|';
37-
str += '\n';
2+
// git update-index --assume-unchanged generate.js
3+
// recover
4+
// git update-index --no-assume-unchanged generate.js
385

6+
const superagent = require("superagent");
7+
const cheerio = require("cheerio");
8+
const fs = require("fs");
9+
const eventproxy = require('eventproxy');
10+
11+
let CONFIG = {
12+
// cookie from -> https://leetcode.com/api/problems/algorithms/
13+
cookie: '',
14+
baseLocalSrc: '',
15+
markdownFileSrc: '',
16+
baseNetSrc: 'https://github.com/hanzichi/leetcode/blob/master/Algorithms/',
17+
api: 'https://leetcode.com/api/problems/algorithms/',
18+
ua: 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.87 Safari/537.36'
19+
};
20+
21+
function makeMarkdownFile(data) {
22+
let {problems, num_total, num_solved, num_locked} = data;
23+
24+
// use ES6 template string
25+
let tpl =
26+
`# Leetcode Solutions with JavaScript
27+
28+
Update time: ${new Date}
29+
30+
I have solved **${num_solved} / ${num_total}** problems while **${num_locked}** problems are still locked.
31+
32+
(Notes: :blue_book: means you need to buy a book from Leetcode)
33+
34+
| # | Title | Source Code | Explanation | Difficulty |
35+
|:---:|:---:|:---:|:---:|:---:|
36+
`
3937
// sort by the problemId desc
40-
ans.sort(function(a, b) {
41-
return +b.problemId - +a.problemId;
42-
});
38+
problems.sort((a, b) => b.problemId - a.problemId);
39+
40+
problems.forEach((item) => {
41+
let {problemId, title, url, language, sourceCode, explanation, difficulty, isSolved, isLocked} = item;
42+
tpl += `| ${problemId} | [${title}](${url}) `;
43+
44+
if (isLocked)
45+
tpl += ':blue_book: ';
4346

44-
for (var i = 0, len = ans.length; i < len; i++) {
45-
var item = ans[i];
46-
47-
var problemId = item.problemId;
48-
var title = item.title;
49-
var url = item.url;
50-
var language = item.language;
51-
var sourceCode = item.sourceCode;
52-
var explanation = item.explanation;
53-
var difficulty = item.difficulty;
54-
var isSolved = item.isSolved;
55-
var isLocked = item.isLocked;
56-
57-
str += '| ' + problemId + ' ';
58-
str += '| ' + '[' + title + '](' + url + ') ';
59-
60-
if (isSolved)
61-
str += '| ' + '[' + language + '](' + sourceCode + ') ';
62-
else if (isLocked) {
63-
// | :blue_book:
64-
str += '| :blue_book: ';
47+
if (isSolved) {
48+
tpl += `| [${language}](${sourceCode}) `;
6549
} else {
66-
str += '| ';
50+
tpl += '| ';
6751
}
6852

6953
if (explanation)
70-
str += '| '+'[Explanation]('+explanation+') ';
54+
tpl += `| [Explanation](${explanation}) `;
7155
else {
72-
str += '| ';
56+
tpl += '| ';
7357
}
7458

75-
str += '| '+difficulty+' |';
76-
str += '\n';
77-
}
59+
tpl += `| ${difficulty} |`;
60+
tpl += '\n';
61+
})
7862

79-
var makeDownFileSrc = "C:/wamp/www/github/leetcode/readme.md";
80-
fs.writeFile(makeDownFileSrc, str);
81-
console.log("success!");
63+
return new Promise((resolve, reject) => {
64+
fs.writeFile(CONFIG.markdownFileSrc, tpl, () => {
65+
resolve("saved!");
66+
});
67+
});
8268
}
8369

8470

85-
function dealWithFile() {
86-
var baseLocalSrc = "C:/wamp/www/github/leetcode/Algorithms/";
87-
var baseNetSrc = "https://github.com/hanzichi/leetcode/blob/master/Algorithms/";
71+
function dealWithFile(data) {
72+
return new Promise((resolve, reject) => {
73+
let ep = new eventproxy();
74+
let baseNetSrc = CONFIG.baseNetSrc;
8875

89-
for(vari=0,len=ans.length;i<len;i++) {
90-
!function(i){
91-
varp=ans[i];
76+
ep.after('read',data.num_solved,(problems)=> {
77+
resolve(data);
78+
});
9279

80+
data.problems.forEach((p) => {
9381
if (p.isSolved) {
94-
var fileSrc = baseLocalSrc + p.title;
82+
let fileSrc = CONFIG.baseLocalSrc + p.title;
9583

96-
fs.readdir(fileSrc, function(err, files) {
97-
files.forEach(function(fileName) {
98-
if (~fileName.indexOf("md")) {
84+
fs.readdir(fileSrc, (err, files)=> {
85+
files.forEach((fileName)=> {
86+
if (fileName.endsWith("md")) {
9987
p.explanation = encodeURI(baseNetSrc + p.title + '/' + fileName);
100-
}
101-
102-
if (~fileName.indexOf("js")) {
103-
p.language = "JavaScript";
104-
p.sourceCode = encodeURI(baseNetSrc + p.title + '/' + fileName);
105-
} else if (~fileName.indexOf("cpp")) {
106-
p.language = "C++";
107-
p.sourceCode = encodeURI(baseNetSrc + p.title + '/' + fileName);
108-
} else if (~fileName.indexOf("py")) {
109-
p.language = "Python";
88+
} else {
89+
// language -> JavaScript/Python/C++
90+
if (fileName.endsWith("js")) {
91+
p.language = "JavaScript";
92+
} else if (fileName.endsWith("cpp")) {
93+
p.language = "C++";
94+
} else if (fileName.endsWith("py")) {
95+
p.language = "Python";
96+
}
11097
p.sourceCode = encodeURI(baseNetSrc + p.title + '/' + fileName);
11198
}
11299
});
100+
101+
ep.emit('read', p);
113102
});
114103
}
115-
}(i);
116-
}
117-
118-
// delay 2000ms to make sure that async operations have been done
119-
// it's better to use eventproxy module
120-
setTimeout(function() {
121-
makeMarkdownFile();
122-
}, 2000);
104+
});
105+
});
123106
}
124107

125-
126108
function makeRequest() {
127-
superagent
128-
.get("https://leetcode.com/api/problems/algorithms/")
129-
.set("Cookie", Cookie) // for logining in
130-
.set("User-Agent", "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.87 Safari/537.36")
131-
.end(function(err, res) {
132-
var str = res.text;
133-
var data = JSON.parse(str);
134-
var arr = data.stat_status_pairs;
135-
136-
problemNum = data.num_total;
137-
solvedNum = data.num_solved;
138-
139-
arr.forEach(function(item, index) {
140-
var obj = {
141-
isSolved: item.status === "ac",
142-
problemId: item.stat.question_id,
143-
title: item.stat.question__title,
144-
url: "https://leetcode.com/problems/" + item.stat.question__title_slug + '/',
145-
isLocked: item.paid_only === true,
146-
difficulty: ['', 'Easy', 'Medium', 'Hard'][item.difficulty.level]
147-
};
148-
149-
ans.push(obj);
150-
obj.isLocked && lockedNum++;
151-
});
109+
return new Promise((resolve, reject) => {
110+
superagent
111+
.get(CONFIG.api)
112+
.set("Cookie", CONFIG.cookie) // login in
113+
.set("User-Agent", CONFIG.ua)
114+
.end((err, res) => {
115+
let {stat_status_pairs, num_total, num_solved} = JSON.parse(res.text);
116+
let num_locked = 0;
117+
118+
let problems = stat_status_pairs.map((item) => {
119+
let obj = {
120+
isSolved: item.status === "ac",
121+
problemId: item.stat.question_id,
122+
title: item.stat.question__title,
123+
url: "https://leetcode.com/problems/" + item.stat.question__title_slug + '/',
124+
isLocked: item.paid_only === true,
125+
difficulty: ['', 'Easy', 'Medium', 'Hard'][item.difficulty.level],
126+
};
127+
128+
obj.isLocked && num_locked++;
129+
return obj;
130+
});
152131

153-
dealWithFile();
154-
});
132+
resolve({problems, num_total, num_solved, num_locked});
133+
});
134+
});
155135
}
156136

157-
// start
158-
makeRequest();
137+
// Promise
138+
makeRequest().then((data) => {
139+
return dealWithFile(data);
140+
}).then((data) => {
141+
return makeMarkdownFile(data);
142+
}).then((msg) => {
143+
console.log(msg);
144+
});

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