HiddenPhox/src/modules/codePreviews.js

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const {MessageFlags, Routes} = require("oceanic.js");
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const events = require("../lib/events.js");
const {hasFlag} = require("../lib/guildSettings.js");
const REGEX_GITHUB =
/(?:\s|^)https?:\/\/(www\.)?github\.com\/.+?\/.+?\/blob\/([a-zA-Z0-9-_.#/]*)/g;
const REGEX_GITLAB =
/(?:\s|^)https?:\/\/.+?\/.+?\/.+?\/-\/blob\/([a-zA-Z0-9-_.#/]*)/g;
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const REGEX_GITEA =
/(?:\s|^)https?:\/\/.+?\/.+?\/.+?\/src\/branch\/([a-zA-Z0-9-_.#/]*)/g;
function unindent(str) {
str = str.replace(/\t/g, " ");
const minIndent =
str
.match(/^ *(?=\S)/gm)
?.reduce((prev, curr) => Math.min(prev, curr.length), Infinity) ?? 0;
if (!minIndent) return str;
return str.replace(new RegExp(`^ {${minIndent}}`, "gm"), "");
}
async function processFile(link) {
const file = await fetch(link).then((res) => res.text());
const lines = file.replace(/\r/g, "").split("\n");
const fileName = link.substring(
link.lastIndexOf("/") + 1,
link.indexOf("#") == -1 ? link.length : link.indexOf("#")
);
const fileType =
fileName.indexOf(".") == -1
? ""
: fileName.substring(fileName.indexOf(".") + 1);
const lineStr = link.match(/#L\d+(-L?\d+)?/)?.[0];
let startLine, endLine;
let entireFile = false;
if (lineStr) {
const [start, end] = lineStr.match(/\d+/g);
if (!end) {
startLine = endLine = start;
} else {
startLine = start;
endLine = end;
}
} else {
entireFile = true;
startLine = 1;
endLine = lines.length;
}
const whichLines = entireFile
? ""
: startLine == endLine
? "Line " + startLine
: "Lines " + startLine + "-" + endLine;
startLine--;
endLine--;
const targetLines = (
entireFile ? lines : lines.slice(startLine, endLine + 1)
).join("\n");
return (
"**" +
fileName +
": **" +
whichLines +
"\n```" +
fileType +
"\n" +
unindent(targetLines) +
"\n```\n"
);
}
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events.add("messageCreate", "codePreviews", async function (msg) {
if (msg.author.id == hf.bot.user.id) return;
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if (!msg.guildID) return;
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if (!(await hasFlag(msg.guildID, "codePreviews"))) return;
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let out = "";
const githubLinks = msg.content.match(REGEX_GITHUB);
const gitlabLinks = msg.content.match(REGEX_GITLAB);
const giteaLinks = msg.content.match(REGEX_GITEA);
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if (githubLinks?.length) {
for (const link of githubLinks) {
out += await processFile(link.replace("/blob/", "/raw/"));
}
}
if (gitlabLinks?.length) {
for (const link of gitlabLinks) {
out += await processFile(link.replace("/blob/", "/raw/"));
}
}
if (giteaLinks?.length) {
for (const link of giteaLinks) {
out += await processFile(link.replace("/src/", "/raw/"));
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}
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}
if (out.length > 2000) return;
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if (out !== "") {
// NB: OceanicJS/Oceanic#32
//await msg.edit({flags: MessageFlags.SUPPRESS_EMBEDS}).catch(() => {});
await hf.bot.rest
.authRequest({
method: "PATCH",
path: Routes.CHANNEL_MESSAGE(msg.channel.id, msg.id),
json: {
flags: MessageFlags.SUPPRESS_EMBEDS,
},
})
.catch(() => {});
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await msg.channel.createMessage({
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content: out,
allowedMentions: {
repliedUser: false,
},
messageReference: {
messageID: msg.id,
},
});
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}
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});