mine-compress/.github/workflows/optimize.yml

name: Optimize Resource Pack

on:
  issues:
    types: [labeled]

jobs:
  process_resource_pack:
    if: github.event.label.name == 'optimize-request'
    runs-on: ubuntu-latest

    permissions:
      issues: write
      contents: read

    steps:
      - name: Extract zip link from issue
        id: extract
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          ISSUE_NUMBER="${{ github.event.issue.number }}"
          REPO="${{ github.repository }}"

          RAW_URL=$(echo "${{ github.event.issue.body }}" | grep -oP 'https?://[^\s)]*\.zip[^\s)]*' | head -n 1)

          if [[ -z "$RAW_URL" ]]; then
            echo "No .zip URL found in issue body."
            echo "status=failed" >> "$GITHUB_OUTPUT"

            echo "❌ Adding invalid-url label due to missing .zip URL"
            gh issue edit "$ISSUE_NUMBER" --repo "$REPO" \
              --add-label invalid-url \
              --remove-label optimize-request

            exit 1
          fi

          # Fix Dropbox links by ensuring dl=1
          if [[ "$RAW_URL" =~ dropbox\.com ]]; then
            ZIP_URL=$(echo "$RAW_URL" | sed -E 's/[?&]dl=[01]//g')
            if [[ "$ZIP_URL" == *\?* ]]; then
              ZIP_URL="${ZIP_URL}&dl=1"
            else
              ZIP_URL="${ZIP_URL}?dl=1"
            fi
          else
            ZIP_URL="$RAW_URL"
          fi

          # Check if URL is downloadable
          if [[ "$ZIP_URL" =~ dropbox\.com ]]; then
            # Dropbox requires full download to verify
            if ! curl -s --fail --output /dev/null "$ZIP_URL"; then
              echo "❌ Dropbox URL not reachable: $ZIP_URL"
              echo "status=failed" >> "$GITHUB_OUTPUT"

              gh issue comment "$ISSUE_NUMBER" --repo "$REPO" \
                --body="❌ Invalid Dropbox URL.\n\nEnsure the link is public and includes \`dl=1\`."

              gh issue edit "$ISSUE_NUMBER" --repo "$REPO" \
                --add-label invalid-url \
                --remove-label optimize-request

              gh issue close "$ISSUE_NUMBER" --repo "$REPO"
              exit 1
            fi
          else
            # Regular .zip URL check via HTTP headers
            if ! curl -sI --fail "$ZIP_URL" | grep -q "200 OK"; then
              echo "❌ URL not responding with 200 OK: $ZIP_URL"
              echo "status=failed" >> "$GITHUB_OUTPUT"

              gh issue comment "$ISSUE_NUMBER" --repo "$REPO" \
                --body="❌ Invalid or unreachable .zip URL provided.\n\nMake sure it is public and ends in \`.zip\`."

              gh issue edit "$ISSUE_NUMBER" --repo "$REPO" \
                --add-label invalid-url \
                --remove-label optimize-request

              gh issue close "$ISSUE_NUMBER" --repo "$REPO"
              exit 1
            fi
          fi

          echo "zip_url=$ZIP_URL" >> "$GITHUB_OUTPUT"
          echo "status=success" >> "$GITHUB_OUTPUT"

      - name: Download and unzip resource pack
        run: |
          mkdir input
          cd input
          echo "⬇️ Downloading zip file..."
          curl -sL "${{ steps.extract.outputs.zip_url }}" -o pack.zip

          echo "📦 Unpacking zip..."
          unzip -q pack.zip -d unpacked

          echo "✅ Resource pack extracted."

      - name: Install dependencies
        run: |
          sudo apt-get update -qq > /dev/null
          sudo apt-get install -y -qq optipng ffmpeg zip > /dev/null

          echo "🔍 Verifying installation..."
          for cmd in optipng ffmpeg zip; do
            if ! command -v "$cmd" >/dev/null 2>&1; then
              echo "❌ $cmd not found after installation."
              exit 1
            else
              echo "✅ $cmd is installed: $($cmd --version | head -n 1)"
            fi
          done

      - name: Optimize PNG files
        shell: bash
        run: |
          set +e  # disable exit-on-error
          set +o pipefail  # ignore broken pipes from printf
          echo "🖼️ Scanning PNG files..."
          mapfile -t FILES < <(find input/unpacked -type f -iname '*.png')

          TOTAL=${#FILES[@]}
          echo "🖼️ Optimizing $TOTAL PNG files..."

          i=0
          for file in "${FILES[@]}"; do
            ((i++))
            # Output progress quietly, avoid broken pipe crashes
            { printf "\r[%4d/%4d] %s" "$i" "$TOTAL" "$(basename "$file")"; } || true
            optipng -o7 -fix "$file" > /dev/null 2>&1 || true
          done

          echo -e "\n✅ PNG optimization complete."

      - name: Compress OGG files
        shell: bash
        run: |
          set +e
          set +o pipefail
          echo "🔊 Scanning OGG files..."
          mapfile -t FILES < <(find input/unpacked -type f -iname '*.ogg')

          TOTAL=${#FILES[@]}
          echo "🔊 Compressing $TOTAL OGG files..."

          i=0
          for file in "${FILES[@]}"; do
            ((i++))
            { printf "\r[%4d/%4d] %s" "$i" "$TOTAL" "$(basename "$file")"; } || true
            ffmpeg -v error -y -i "$file" -c:a libvorbis -qscale:a 3 "${file}.tmp.ogg" > /dev/null 2>&1 || true
            if [[ -f "${file}.tmp.ogg" ]]; then
              mv -f "${file}.tmp.ogg" "$file"
            fi
          done

          echo -e "\n✅ OGG compression complete."

      - name: Upload Optimized Folder
        uses: actions/upload-artifact@v4
        with:
          name: optimized-pack
          path: input/unpacked

      - name: Comment + Label + Close Issue
        if: always()
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          set -e

          ISSUE_NUMBER="${{ github.event.issue.number }}"
          REPO="${{ github.repository }}"
          RUN_ID="${{ github.run_id }}"

          if ! command -v gh > /dev/null; then
            sudo apt-get update -qq
            sudo apt-get install -y -qq gh
          fi

          if [[ "${{ steps.extract.outputs.status }}" == "success" && -d input/unpacked ]]; then
            gh issue comment "$ISSUE_NUMBER" --repo "$REPO" \
              --body=$'✅ Optimization complete!\n\nDownload from: https://github.com/'"$REPO"'/actions/runs/'"$RUN_ID"

            gh issue edit "$ISSUE_NUMBER" --repo "$REPO" \
              --add-label optimization-success \
              --remove-label optimize-request

            gh issue close "$ISSUE_NUMBER" --repo "$REPO"
          else
            gh issue comment "$ISSUE_NUMBER" --repo "$REPO" \
              --body=$'❌ Optimization failed.\n\nEnsure your issue contains a valid public .zip file link.'

            gh issue edit "$ISSUE_NUMBER" --repo "$REPO" \
              --add-label optimization-failed \
              --remove-label optimize-request

            gh issue close "$ISSUE_NUMBER" --repo "$REPO"
          fi