name: Validate Logo Upload

on:
  pull_request:
    paths:
      - 'logos/**'
      - 'data/logos/**'

jobs:
  validate:
    runs-on: ubuntu-latest
    
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 2

      - name: Get changed files
        id: changed-files
        uses: tj-actions/changed-files@v41
        with:
          files: |
            logos/**
            data/logos/**

      - name: Validate logo files
        run: |
          echo "🔍 Validating logo uploads..."
          
          # Check if any files were changed
          if [ -z "${{ steps.changed-files.outputs.all_changed_files }}" ]; then
            echo "No logo files changed"
            exit 0
          fi
          
          HAS_ERROR=0
          
          for file in ${{ steps.changed-files.outputs.all_changed_files }}; do
            echo "Checking: $file"
            
            # Get filename without extension
            filename=$(basename "$file")
            filename_no_ext="${filename%.*}"
            
            # Check if filename is a valid UUID
            if ! echo "$filename_no_ext" | grep -qE '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$'; then
              echo "❌ ERROR: $file - Filename must be a valid UUID"
              HAS_ERROR=1
              continue
            fi
            
            # Check file extension
            extension="${filename##*.}"
            if [ "$extension" != "svg" ] && [ "$extension" != "png" ]; then
              echo "❌ ERROR: $file - Only .svg and .png files are allowed"
              HAS_ERROR=1
              continue
            fi
            
            # Check if file exists
            if [ ! -f "$file" ]; then
              echo "❌ ERROR: $file - File not found"
              HAS_ERROR=1
              continue
            fi
            
            echo "✅ PASS: $file"
          done
          
          if [ $HAS_ERROR -eq 1 ]; then
            echo ""
            echo "❌ Validation failed. Please fix the errors above."
            exit 1
          fi
          
          echo ""
          echo "✅ All logo files validated successfully!"

      - name: Check PR description for club info
        uses: actions/github-script@v7
        with:
          script: |
            const pr = context.payload.pull_request;
            const body = pr.body || '';
            
            console.log('🔍 Checking PR description for required information...');
            
            // Check for club name
            const hasClubName = /club[_\s-]?name\s*:?\s*(.+)/i.test(body);
            const hasClubId = /club[_\s-]?id\s*:?\s*([0-9a-f-]+)/i.test(body);
            
            if (!hasClubName) {
              core.setFailed('❌ PR description must include "Club Name: <name>"');
              return;
            }
            
            if (!hasClubId) {
              core.setFailed('❌ PR description must include "Club ID: <uuid>"');
              return;
            }
            
            // Extract values
            const clubNameMatch = body.match(/club[_\s-]?name\s*:?\s*(.+)/i);
            const clubIdMatch = body.match(/club[_\s-]?id\s*:?\s*([0-9a-f-]+)/i);
            
            const clubName = clubNameMatch ? clubNameMatch[1].trim() : null;
            const clubId = clubIdMatch ? clubIdMatch[1].trim() : null;
            
            console.log(`✅ Club Name: ${clubName}`);
            console.log(`✅ Club ID: ${clubId}`);
            
            // Validate UUID format
            const uuidRegex = /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/i;
            if (!uuidRegex.test(clubId)) {
              core.setFailed(`❌ Invalid Club ID format: ${clubId}`);
              return;
            }
            
            console.log('✅ PR description validation passed!');

      - name: Comment on PR
        if: success()
        uses: actions/github-script@v7
        with:
          script: |
            github.rest.issues.createComment({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: '✅ Logo upload validation passed!\n\n- File format: Valid\n- UUID format: Valid\n- Club information: Present\n\nReady for review and merge.'
            })

      - name: Reject on failure
        if: failure()
        uses: actions/github-script@v7
        with:
          script: |
            github.rest.issues.createComment({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: '❌ Logo upload validation failed!\n\nPlease ensure:\n1. Filename is a valid UUID\n2. File format is .svg or .png\n3. PR description includes:\n   - Club Name: <name>\n   - Club ID: <uuid>\n\nSee the action logs for details.'
            })