From b42c0da422ea724df42b809fa464fcfd7b4d5b8b Mon Sep 17 00:00:00 2001
From: Srijan Samridh <166486637+SrijanCoinDCX@users.noreply.github.com>
Date: Fri, 6 Dec 2024 16:02:58 +0530
Subject: [PATCH] Update PRLabeling.yml

---
 .github/workflows/PRLabeling.yml | 72 ++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)

diff --git a/.github/workflows/PRLabeling.yml b/.github/workflows/PRLabeling.yml
index 105499e..773bbdc 100644
--- a/.github/workflows/PRLabeling.yml
+++ b/.github/workflows/PRLabeling.yml
@@ -3,6 +3,7 @@ name: Label PR Based on Changes
 on:
   pull_request:
     types: [opened, synchronize, reopened]
+  workflow_dispatch:  # Allows you to manually trigger the action on existing PRs
 
 jobs:
   label_pr:
@@ -89,3 +90,74 @@ jobs:
             -H "Accept: application/vnd.github+json" \
             https://api.github.com/repos/${{ github.repository }}/issues/${{ github.event.pull_request.number }}/labels \
             -d '["${{ env.LABEL }}"]'
+
+  label_existing_prs:
+    runs-on: ubuntu-latest
+    needs: label_pr
+    if: github.event_name == 'workflow_dispatch'  # Only trigger when manually run
+
+    steps:
+      - name: Fetch all open PRs
+        run: |
+          PRS=$(curl -s -H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN }}" \
+            "https://api.github.com/repos/${{ github.repository }}/pulls?state=open")
+
+          # Loop through each open PR to apply the labels
+          for PR in $(echo "$PRS" | jq -r '.[].number'); do
+            echo "Processing PR #$PR"
+
+            # Fetch changed files for each PR
+            CHANGED_FILES=$(curl -s -H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN }}" \
+              "https://api.github.com/repos/${{ github.repository }}/pulls/$PR/files")
+
+            CHANGED_LINES=0
+            for FILE in $(echo "$CHANGED_FILES" | jq -r '.[].additions'); do
+              CHANGED_LINES=$((CHANGED_LINES + FILE))
+            done
+
+            for FILE in $(echo "$CHANGED_FILES" | jq -r '.[].deletions'); do
+              CHANGED_LINES=$((CHANGED_LINES + FILE))
+            done
+
+            # Set the label based on the number of changed lines
+            if [ "$CHANGED_LINES" -lt 50 ]; then
+              LABEL="small"
+              COLOR="0E8A16"  # Green
+            elif [ "$CHANGED_LINES" -le 200 ]; then
+              LABEL="medium"
+              COLOR="FBCA04"  # Yellow
+            else
+              LABEL="large"
+              COLOR="D93F0B"  # Red
+            fi
+
+            # Get the current labels on PR
+            CURRENT_LABELS=$(curl -s -H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN }}" \
+              "https://api.github.com/repos/${{ github.repository }}/issues/$PR/labels")
+
+            OLD_LABEL=$(echo "$CURRENT_LABELS" | jq -r '.[] | select(.name=="small" or .name=="medium" or .name=="large") | .name')
+
+            # Remove old label if it exists and is different
+            if [ "$OLD_LABEL" != "" ] && [ "$OLD_LABEL" != "$LABEL" ]; then
+              curl -X DELETE \
+                -H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN }}" \
+                "https://api.github.com/repos/${{ github.repository }}/issues/$PR/labels/$OLD_LABEL"
+            fi
+
+            # Add the new label with the corresponding color
+            curl -X POST \
+              -H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN }}" \
+              -H "Accept: application/vnd.github+json" \
+              https://api.github.com/repos/${{ github.repository }}/labels \
+              -d '{
+                "name": "'${LABEL}'",
+                "color": "'${COLOR}'"
+              }'
+
+            # Apply the new label to the PR
+            curl -X POST \
+              -H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN }}" \
+              -H "Accept: application/vnd.github+json" \
+              https://api.github.com/repos/${{ github.repository }}/issues/$PR/labels \
+              -d '["'${LABEL}'"]'
+          done