From 1d56127bb7b67462b3a435fbd18697b4d1006bf6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=8Dtalo=20Falzoni?=
 <49489546+ItaloFalzoni@users.noreply.github.com>
Date: Tue, 1 Oct 2024 01:46:50 +0000
Subject: [PATCH] Fix older versions of react native changelog URLs

---
 src/constants.ts |  3 +++
 src/utils.ts     | 27 +++++++++++++++++++++++++++
 2 files changed, 30 insertions(+)

diff --git a/src/constants.ts b/src/constants.ts
index fe74a2d2..1175ae10 100644
--- a/src/constants.ts
+++ b/src/constants.ts
@@ -1,6 +1,9 @@
 export const DEFAULT_APP_NAME = 'RnDiffApp'
 export const DEFAULT_APP_PACKAGE = 'com.rndiffapp'
 
+export const FIRST_PRE_060_VERSION = '0.60'
+export const FIRST_PRE_070_VERSION = '0.70'
+
 export const PACKAGE_NAMES = {
   RN: 'react-native',
   RNM: 'react-native-macos',
diff --git a/src/utils.ts b/src/utils.ts
index 1ae109e2..ef89df9a 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -5,6 +5,8 @@ import {
   DEFAULT_APP_PACKAGE,
   PACKAGE_NAMES,
   RN_CHANGELOG_URLS,
+  FIRST_PRE_060_VERSION,
+  FIRST_PRE_070_VERSION,
 } from './constants'
 import versions from './releases'
 
@@ -127,6 +129,27 @@ export const getVersionsContentInDiff = ({
   })
 }
 
+const getOldVersionsChangelogURL = ({
+  version,
+  packageName,
+}: {
+  version: string
+  packageName: string
+}) => {
+  const urlOldVersion = RN_CHANGELOG_URLS[packageName].replace('/CHANGELOG.md', '')
+  let formattedVersion = version.replaceAll('.', '')
+
+  if (version.split('.').length === 2) formattedVersion += '0'
+
+  if (version < FIRST_PRE_060_VERSION) {
+    return `${urlOldVersion}/CHANGELOG-pre-060.md#v${formattedVersion}`
+  }
+
+  if (version < FIRST_PRE_070_VERSION) {
+    return `${urlOldVersion}/CHANGELOG-pre-070.md#v${formattedVersion}`
+  }
+}
+
 export const getChangelogURL = ({
   version,
   packageName,
@@ -138,6 +161,10 @@ export const getChangelogURL = ({
     return `${RN_CHANGELOG_URLS[packageName]}v${version}`
   }
 
+  if (version < FIRST_PRE_070_VERSION) {
+    return getOldVersionsChangelogURL({ packageName, version })
+  }
+
   return `${RN_CHANGELOG_URLS[packageName]}#v${version.replaceAll('.', '')}`
 }