From 5fbe95fd1561170f8c91182d6001f9eb6ffe657e Mon Sep 17 00:00:00 2001
From: Sebastian Koszuta <sebastian.koszuta@gmail.com>
Date: Fri, 13 Dec 2024 13:51:17 +0100
Subject: [PATCH] Added "apply migration" step to the link checker tool

---
 tools/links-check/index.ts   |  6 ++++++
 tools/links-check/migrate.ts | 35 +++++++++++++++++++++++++++++++++++
 2 files changed, 41 insertions(+)
 create mode 100644 tools/links-check/migrate.ts

diff --git a/tools/links-check/index.ts b/tools/links-check/index.ts
index b38d89f..98f088e 100755
--- a/tools/links-check/index.ts
+++ b/tools/links-check/index.ts
@@ -5,6 +5,7 @@ import * as fs from "node:fs";
 import * as path from "node:path";
 import ignore from "ignore";
 import fg from "fast-glob";
+import { promptUserForMigration, performMigrations } from "./migrate";
 
 main().catch((err: unknown) => {
   console.error(`🚨 ${err}`);
@@ -95,4 +96,9 @@ async function main() {
   }
 
   printReport(report);
+
+  const applyMigrations = await promptUserForMigration();
+  if (applyMigrations) {
+    await performMigrations(report, commonPath);
+  }
 }
diff --git a/tools/links-check/migrate.ts b/tools/links-check/migrate.ts
new file mode 100644
index 0000000..8d58ea2
--- /dev/null
+++ b/tools/links-check/migrate.ts
@@ -0,0 +1,35 @@
+import type { Report } from "./report";
+import * as readline from "node:readline";
+import * as fs from "node:fs";
+import * as path from "node:path";
+
+export async function promptUserForMigration(): Promise<boolean> {
+  const rl = readline.createInterface({
+    input: process.stdin,
+    output: process.stdout,
+  });
+
+  return new Promise((resolve) => {
+    rl.question("Would you like to apply suggested migrations? (yes/no): ", (answer) => {
+      rl.close();
+      resolve(answer.toLowerCase() === "yes");
+    });
+  });
+}
+
+export async function performMigrations(report: Report, commonPath: string) {
+  for (const [filePath, links] of report.outdated) {
+    const absoluteFilePath = path.resolve(commonPath, filePath);
+    const fileContent = await fs.promises.readFile(absoluteFilePath, "utf-8");
+    let updatedContent = fileContent;
+
+    for (const link of links) {
+      if (link.updated && link.migrated) {
+        updatedContent = updatedContent.replace(link.url, link.updated);
+      }
+    }
+
+    await fs.promises.writeFile(absoluteFilePath, updatedContent, "utf-8");
+    console.info(`Updated links in file: ${absoluteFilePath}`);
+  }
+}