auto-assign-date-label.yml

name: Monthly Issue Labeler

on:
  issues:
    types: [opened]

jobs:
  label-issue:
    runs-on: ubuntu-latest
    permissions:
      issues: write
    
    steps:
      - name: Add month-year label
        uses: actions/github-script@v7
        with:
          script: |
            const date = new Date();
            const monthNames = [
              "January", "February", "March", "April", "May", "June",
              "July", "August", "September", "October", "November", "December"
            ];
            
            const month = monthNames[date.getMonth()];
            const year = date.getFullYear();
            const labelName = `${month} ${year}`;
            
            console.log(`Creating/applying label: ${labelName}`);
            
            // Define a set of 12 standard colors (no black or white)
            const standardColors = [
              "e11d21", // Red
              "fbca04", // Yellow
              "009800", // Green
              "006b75", // Teal
              "207de5", // Blue
              "0052cc", // Dark Blue
              "5319e7", // Purple
              "d93f0b", // Orange
              "fbad50", // Light Orange
              "fc6399", // Pink
              "c5def5", // Light Blue
              "bfdadc"  // Pale Teal
            ];
            
            // Function to get a color from the standard colors
            function getStandardColor() {
              const randomIndex = Math.floor(Math.random() * standardColors.length);
              return standardColors[randomIndex];
            }
            
            // Check if the label exists, create it if it doesn't
            try {
              await github.rest.issues.getLabel({
                owner: context.repo.owner,
                repo: context.repo.repo,
                name: labelName
              });
              console.log(`Label ${labelName} already exists`);
            } catch (error) {
              if (error.status === 404) {
                const selectedColor = getStandardColor();
                console.log(`Creating new label: ${labelName} with color #${selectedColor}`);
                await github.rest.issues.createLabel({
                  owner: context.repo.owner,
                  repo: context.repo.repo,
                  name: labelName,
                  color: selectedColor
                });
              } else {
                throw error;
              }
            }
            
            // Apply the label to the issue
            await github.rest.issues.addLabels({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: context.issue.number,
              labels: [labelName]
            });