codePreviews: ignore markdown, limit full to 20 line files, fix

reactions (hopefully)

src/modules/codePreviews.js

@@ -36,6 +36,8 @@ async function processFile(link) {
       ? ""
       : fileName.substring(fileName.lastIndexOf(".") + 1);
 
+  if (fileType == "md") return "";
+
   const lineStr = link.match(/#L\d+(-L?\d+)?/)?.[0];
   let startLine, endLine;
   let entireFile = false;
@@ -60,21 +62,15 @@ async function processFile(link) {
     ? "Line " + startLine
     : "Lines " + startLine + "-" + endLine;
 
+  if (entireFile && lines.length > 20) return "";
+
   const targetLines = (
-    entireFile
+    entireFile ? lines : lines.slice(startLine - 1, endLine)
-      ? lines.length > 30
-        ? lines.slice(0, 30)
-        : lines
-      : lines.slice(startLine - 1, endLine)
   ).join("\n");
 
   return `**${fileName}: **${whichLines}\n\`\`\`${fileType}\n${unindent(
     targetLines
-  )}${
+  )}\n\`\`\``;
-    entireFile && lines.length > 30
-      ? `\n... (${lines.length - 30} lines left)`
-      : ""
-  }\n\`\`\``;
 }
 
 events.add("messageCreate", "codePreviews", async function (msg) {
@@ -168,7 +164,7 @@ events.add(
     const ref = await channel.getMessage(msg.messageReference.messageID);
     if (!ref) return;
     if (
-      ref.author.id != reactor.id ||
+      ref.author.id != reactor.id &&
       !channel.permissionsOf(reactor.id).has("manageMessages")
     )
       return;