name: 'Archive Cache'
description: 'Create cache archive and prepare for upload'
inputs:
  cache_path:
    description: 'Path where cache is saved'
    required: true
    type: string
  cache_key:
    description: 'Unique key for the cache'
    required: true
    type: string
  cache_bucket:
    description: 'The tag name for the release'
    required: true
    default: 'general-cache'
  compression_level:
    description: 'Compression level (0-9)'
    required: false
    type: number
    default: 6
  working_dir:
    description: 'Path where .git folder exists'
    required: false
    type: string
  debug:
    description: 'Enable Logs'
    required: false
    type: boolean
    default: false

runs:
  using: 'composite'
  steps:
    - name: Archive and Split Cache
      shell: bash
      env:
        GH_TOKEN: ${{ inputs.github_token }}
        TARGET_REPO: "${{ github.repository }}"
      run: |
        set -euo pipefail

        if [ "${{ inputs.working_dir }}" != "" ]; then
          cd "${{ inputs.working_dir }}"
        fi

        git config user.name "github-actions[bot]"
        git config user.email "41898282+github-actions[bot]@users.noreply.github.com"

        TAG_NAME="${{ inputs.cache_bucket }}"
        BASE_FILENAME="cache-${{ inputs.cache_key }}"

        if [ "${{ inputs.compression_level }}" -eq 0 ]; then
          FILENAME="$BASE_FILENAME.tar"
        else
          FILENAME="$BASE_FILENAME.tzst"
        fi

        # Check release state
        git fetch --tags --force

        if ! git rev-parse "$TAG_NAME" >/dev/null 2>&1; then
          echo "Creating release: $TAG_NAME"
          GIT_COMMITTER_DATE="2015-01-01T12:00:00" git tag -a "$TAG_NAME" -m "General Cache Storage"
          git push origin "$TAG_NAME" --force || true
          gh release create "$TAG_NAME" --title "General Cache" --notes "Automated storage for build assets" --prerelease --repo "$TARGET_REPO" || true
        fi

        # Check if path exists
        if [ ! -d "${{ inputs.cache_path }}" ] && [ ! -f "${{ inputs.cache_path }}" ]; then
          echo "[!] Target path not found. Skipping cache save."
          exit 0
        fi

        DIR_NAME=$(dirname "${{ inputs.cache_path }}")
        BASE_NAME=$(basename "${{ inputs.cache_path }}")

        if [ "${{ inputs.debug }}" = "true" ]; then
          if [ "${{ inputs.compression_level }}" -eq 0 ]; then
            tar --posix -h -cvf "$FILENAME" -C "$DIR_NAME" "$BASE_NAME"
          else
            tar --posix -h -I "zstd -T0 -${{ inputs.compression_level }}" -cvf "$FILENAME" -C "$DIR_NAME" "$BASE_NAME"
          fi
        else
          if [ "${{ inputs.compression_level }}" -eq 0 ]; then
            tar --posix -h -cvf "$FILENAME" -C "$DIR_NAME" "$BASE_NAME" > /dev/null 2>&1
          else
            tar --posix -h -I "zstd -T0 -${{ inputs.compression_level }}" -cvf "$FILENAME" -C "$DIR_NAME" "$BASE_NAME" > /dev/null 2>&1
          fi
        fi

        FILE_SIZE=$(stat -c%s "$FILENAME")
        echo "Archive created: $FILENAME ($FILE_SIZE bytes)"

        # Determine if splitting is needed
        MAX_SIZE=2000000000
        chunk_size="1500M"
        split_required=false

        if [ "$FILE_SIZE" -gt "$MAX_SIZE" ]; then
          split_required=true
        fi

        if [ "$split_required" = "true" ]; then
          echo "Splitting into ${chunk_size} chunks..."
          split -b "$chunk_size" -a 2 "$FILENAME" "${FILENAME}.part"
          NEW_PARTS=(${FILENAME}.part*)
          NEW_PARTS_COUNT=${#NEW_PARTS[@]}
          echo "Split complete, $NEW_PARTS_COUNT parts created"

          # Remove old single-file asset if switching to split parts
          ALL_ASSETS=$(curl -sL -A "Mozilla/5.0" -w "%{http_code}" "https://github.com/${TARGET_REPO}/releases/expanded_assets/$TAG_NAME" -o assets.html 2>/dev/null || echo "0")
          if [ "$ALL_ASSETS" = "200" ]; then
            ALL_ASSETS=$(grep -oP "download/$TAG_NAME/\K[\"' ]+" assets.html 2>/dev/null || echo "")
            if echo "$ALL_ASSETS" | grep -xF "${FILENAME}" >/dev/null 2>&1; then
              gh release delete-asset "$TAG_NAME" "${FILENAME}" --repo "$TARGET_REPO" -y || true
            fi
            # Clean up excess trailing parts from previous builds
            OLD_PARTS=$(echo "$ALL_ASSETS" | grep -F "${FILENAME}.part" 2>/dev/null || echo "")
            if [ -n "$OLD_PARTS" ]; then
              OLD_PARTS_COUNT=$(echo "$OLD_PARTS" | wc -l)
              if [ "$OLD_PARTS_COUNT" -gt "$NEW_PARTS_COUNT" ]; then
                EXT_PARTS=$(echo "$OLD_PARTS" | awk -v skip="$NEW_PARTS_COUNT" 'NR>skip')
                for asset in $EXT_PARTS; do
                  gh release delete-asset "$TAG_NAME" "$asset" --repo "$TARGET_REPO" -y || true
                done
              fi
            fi
          fi
          rm -f assets.html
        else
          # Remove old split parts if new build fits in a single file
          ALL_ASSETS=$(curl -sL -A "Mozilla/5.0" -w "%{http_code}" "https://github.com/${TARGET_REPO}/releases/expanded_assets/$TAG_NAME" -o assets.html 2>/dev/null || echo "0")
          if [ "$ALL_ASSETS" = "200" ]; then
            OLD_PARTS=$(grep -F "${FILENAME}.part" assets.html 2>/dev/null || echo "")
            if [ -n "$OLD_PARTS" ]; then
              while read -r asset; do
                [ -z "$asset" ] && continue
                gh release delete-asset "$TAG_NAME" "$asset" --repo "$TARGET_REPO" -y || true
              done <<< "$OLD_PARTS"
            fi
          fi
          rm -f assets.html
        fi

        echo "CACHE_FILE=$FILENAME" >> $GITHUB_OUTPUT
        echo "CACHE_SPLIT=$split_required" >> $GITHUB_OUTPUT
        echo "CACHE_PARTS=${NEW_PARTS_COUNT:-1}" >> $GITHUB_OUTPUT