Merge pull request 'Discord has a max message length of 2000, keep the PR title below that!' (#7) from max-message-length into main

Reviewed-on: #7

packages/spike/src/gitea/webhook-handler.ts

@@ -106,7 +106,7 @@ export class PRHandler {
 
   static formatPrBody(pullRequest: Gitea.PullRequest, repositoryFullName: string): string {
     const body = pullRequest.body || "_empty_"
-    return `
+    let message = `
   > ### [${pullRequest.title}](<${pullRequest.html_url}>)
   > **${repositoryFullName}**
   > 
@@ -115,6 +115,13 @@ export class PRHandler {
     .map((line) => `> ${line}`)
     .join("\n")}
   `
+
+    const maxMessageSize = 2000
+    const truncateMessage = `\n_message truncated. View full PR on Gitea_`
+
+    if (message.length < maxMessageSize) return message
+
+    return message.slice(0, maxMessageSize - 1 - truncateMessage.length) + truncateMessage
   }
 }