rpgxp-release.yml

name: RPG Maker XP Release

on:
  push:
    branches: [main]
  workflow_dispatch:

permissions:
  contents: write

jobs:
  create-release:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout Repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Build Release
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          set -euo pipefail

          IGNORED_PATHS="README.md|LICENSE|images/|\.github/|\.gitattributes|\.gitignore"

          # ── Letzten Release-Tag ermitteln
          LATEST_TAG=$(git tag -l 'v*-rpgxp-scripts' --sort=-v:refname | head -n1 || true)

          if [ -z "$LATEST_TAG" ]; then
            IS_FIRST_RELEASE=true
            NEW_VERSION="v1.0.0"
            DIFF=$(find . -name "*.rb" -not -path "./.git/*" | sed 's|^\./||' | sed 's/^/A\t/')
          else
            IS_FIRST_RELEASE=false
            LAST_SHA=$(git rev-list -n1 "$LATEST_TAG" 2>/dev/null || true)

            if [ -z "$LAST_SHA" ] || ! git cat-file -e "$LAST_SHA" 2>/dev/null; then
              IS_FIRST_RELEASE=true
              NEW_VERSION="v1.0.0"
              DIFF=$(find . -name "*.rb" -not -path "./.git/*" | sed 's|^\./||' | sed 's/^/A\t/')
            else
              DIFF=$(git diff --name-status "$LAST_SHA" HEAD -- '*.rb' | grep -vP "\t($IGNORED_PATHS)" || echo "")
            fi

            if [ "$IS_FIRST_RELEASE" = false ]; then
              CURRENT=$(echo "$LATEST_TAG" | sed 's/^v//' | sed 's/-rpgxp-scripts$//')
              MAJOR=$(echo "$CURRENT" | cut -d. -f1)
              MINOR=$(echo "$CURRENT" | cut -d. -f2)
              PATCH=$(echo "$CURRENT" | cut -d. -f3)

              HAS_NEW_FOLDER=false
              if [ -n "$DIFF" ]; then
                while IFS=$'\t' read -r status filepath; do
                  if [[ "$status" == A* ]]; then
                    folder=$(echo "$filepath" | cut -d'/' -f1)
                    if ! git ls-tree --name-only "$LAST_SHA" | grep -qF "$folder"; then
                      HAS_NEW_FOLDER=true
                      break
                    fi
                  fi
                done <<< "$DIFF"
              fi

              if [ "$HAS_NEW_FOLDER" = true ]; then
                MINOR=$((MINOR + 1))
                PATCH=0
              else
                PATCH=$((PATCH + 1))
              fi

              NEW_VERSION="v${MAJOR}.${MINOR}.${PATCH}"
            fi
          fi

          TAG_NAME="${NEW_VERSION}-rpgxp-scripts"

          if [ -z "$DIFF" ]; then
            echo "No script changes detected. Skipping release."
            exit 0
          fi

          total_files=$(echo "$DIFF" | grep -c . || echo "0")

          # ── Kategorien vorbereiten
          scripts_added=()
          scripts_removed=()
          scripts_modified=()

          while IFS=$'\t' read -r status filepath; do
            [ -z "$status" ] && continue
            folder=$(echo "$filepath" | cut -d'/' -f1)
            readable=$(echo "$folder" | sed 's/^[0-9]*-//' | sed 's/-/ /g')

            case "$status" in
              A*) scripts_added+=("$readable") ;;
              D*) scripts_removed+=("$readable") ;;
              *)  scripts_modified+=("$readable") ;;
            esac
          done <<< "$DIFF"

          count_added=${#scripts_added[@]}
          count_removed=${#scripts_removed[@]}
          count_modified=${#scripts_modified[@]}

          # ── Release Notes zusammenbauen
          BODY=""
          RELEASE_DATE=$(date -u +"%d-%m-%Y")
          RELEASE_TIME=$(date -u +"%I:%M %p UTC")
          BODY+="**Release: $RELEASE_DATE at $RELEASE_TIME**"$'\n\n'

          if [ "$IS_FIRST_RELEASE" = true ]; then
            BODY+="This release contains $total_files RPG Maker XP scripts designed to improve gameplay mechanics and visual presentation. Each script is a drop-in replacement that maintains full compatibility with the standard RPG Maker XP framework while adding new functionality."$'\n\n'

            for s in "${scripts_added[@]}"; do
              BODY+="• ⠀Added ${s}"$'\n'
            done
          else
            parts=()
            [ $count_added -gt 0 ] && parts+=("$count_added added")
            [ $count_modified -gt 0 ] && parts+=("$count_modified updated")
            [ $count_removed -gt 0 ] && parts+=("$count_removed removed")
            summary=$(IFS=", "; echo "${parts[*]}")
            BODY+="This release includes ${summary} script(s)."$'\n\n'

            if [ $count_added -gt 0 ]; then
              for s in "${scripts_added[@]}"; do
                BODY+="• ⠀Added ${s}"$'\n'
              done
            fi

            if [ $count_modified -gt 0 ]; then
              for s in "${scripts_modified[@]}"; do
                BODY+="• ⠀Enhanced ${s}"$'\n'
              done
            fi

            if [ $count_removed -gt 0 ]; then
              for s in "${scripts_removed[@]}"; do
                BODY+="• ⠀Removed ~~${s}~~"$'\n'
              done
            fi
          fi

          BODY+=$'\n'"**Note:** If you encounter any bugs or issues, please don't hesitate to open an issue. For any questions or to start a discussion, feel free to initiate a discussion on the GitHub repository."

          # ── Release-Assets sammeln (einzelne .rb Dateien)
          ASSET_FILES=()
          while IFS=$'\t' read -r status filepath; do
            [ -z "$status" ] && continue
            [[ "$status" == D* ]] && continue
            [ -f "$filepath" ] && ASSET_FILES+=("$filepath")
          done <<< "$DIFF"

          if [ ${#ASSET_FILES[@]} -eq 0 ]; then
            echo "No files to include in the release."
            exit 0
          fi

          echo "Assets to upload (${#ASSET_FILES[@]}):"
          printf "  %s\n" "${ASSET_FILES[@]}"

          # ── Release erstellen
          echo "$BODY" > /tmp/release_notes.md
          echo ""
          echo "Release Notes:"
          cat /tmp/release_notes.md
          echo ""

          echo "Creating release: $TAG_NAME"
          gh release create "$TAG_NAME" \
            "${ASSET_FILES[@]}" \
            --title "RPG Maker XP Script Library $NEW_VERSION" \
            --notes-file /tmp/release_notes.md \
            --latest

          echo "Release '$TAG_NAME' created successfully!"