name: Sync Versions to index.json

on:
  push:
    branches:
      - main
    paths:
      - '*/*.json'
      - '!index.json'
  workflow_dispatch:

jobs:
  sync-versions:
    runs-on: ubuntu-latest
    
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Set up Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '18'

      - name: Sync versions from individual JSON files
        run: |
          node << 'EOF'
          const fs = require('fs');
          const path = require('path');
          const { readdirSync } = require('fs');

          // Read index.json
          const indexPath = './index.json';
          const indexData = JSON.parse(fs.readFileSync(indexPath, 'utf8'));

          // Get all directories in current folder
          const entries = readdirSync('.', { withFileTypes: true });
          const directoriesWithJsonFiles = entries
            .filter(entry => entry.isDirectory() && !entry.name.startsWith('.'))
            .map(entry => entry.name)
            .filter(dirName => {
              const jsonPath = path.join(dirName, `${dirName}.json`);
              return fs.existsSync(jsonPath);
            });

          console.log(`Found ${directoriesWithJsonFiles.length} directories with matching JSON files\n`);

          directoriesWithJsonFiles.forEach(dir => {
            const filePath = path.join(dir, `${dir}.json`);
            try {
              const sourceData = JSON.parse(fs.readFileSync(filePath, 'utf8'));
              const indexKey = `${dir}/${dir}.json`;
              
              // Check if this entry exists in index.json
              if (indexData[indexKey]) {
                // Update version in index.json
                if (sourceData.version) {
                  const oldVersion = indexData[indexKey].version;
                  indexData[indexKey].version = sourceData.version;
                  if (oldVersion !== sourceData.version) {
                    console.log(`✓ ${indexKey}: ${oldVersion} → ${sourceData.version}`);
                  } else {
                    console.log(`= ${indexKey}: ${sourceData.version} (no change)`);
                  }
                }
              } else {
                console.log(`⚠ ${indexKey}: Not found in index.json`);
              }
            } catch (error) {
              console.error(`✗ ${filePath}: ${error.message}`);
            }
          });

          // Write updated index.json with pretty formatting
          fs.writeFileSync(indexPath, JSON.stringify(indexData, null, 2) + '\n');
          console.log('\n✓ index.json updated successfully');
          EOF

      - name: Check for changes
        id: verify
        run: |
          if git diff --quiet; then
            echo "changed=false" >> $GITHUB_OUTPUT
          else
            echo "changed=true" >> $GITHUB_OUTPUT
            git diff
          fi

      - name: Configure Git
        if: steps.verify.outputs.changed == 'true'
        run: |
          git config user.name "Gitea Actions Bot"
          git config user.email "actions@gitea.local"

      - name: Commit and push changes
        if: steps.verify.outputs.changed == 'true'
        run: |
          git add index.json
          git commit -m "chore: sync version strings from individual JSON files" -m "Automatically updated version fields in index.json to match their respective source files" -m "Generated by sync-versions workflow"
          git push origin main
        env:
          GIT_AUTHOR_NAME: Gitea Actions Bot
          GIT_AUTHOR_EMAIL: actions@gitea.local
          GIT_COMMITTER_NAME: Gitea Actions Bot
          GIT_COMMITTER_EMAIL: actions@gitea.local