name: Release Pipeline

on:
  push:
    branches:
      - main
  workflow_dispatch:

permissions:
  contents: write

jobs:
  bump-version:
    name: Bump Version & Create Tag
    runs-on: ubuntu-latest
    outputs:
      version: ${{ steps.bump.outputs.version }}
      tag: ${{ steps.bump.outputs.tag }}
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Compute Next Version and Tag
        id: bump
        run: |
          git fetch --tags
          LATEST_TAG=$(git tag -l "v*" | sort -V | tail -n 1)

          if [ -z "$LATEST_TAG" ]; then
            NEXT_VERSION="1.0.0"
          else
            CLEAN_VERSION="${LATEST_TAG#v}"
            IFS='.' read -r MAJOR MINOR PATCH <<< "$CLEAN_VERSION"
            PATCH=$((PATCH + 1))
            NEXT_VERSION="${MAJOR}.${MINOR}.${PATCH}"
          fi

          NEXT_TAG="v${NEXT_VERSION}"
          echo "Latest tag found: ${LATEST_TAG:-none}"
          echo "Calculated next release version: ${NEXT_VERSION}"
          echo "Calculated next release tag: ${NEXT_TAG}"

          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git tag "${NEXT_TAG}"
          git push origin "${NEXT_TAG}"

          echo "version=${NEXT_VERSION}" >> "$GITHUB_OUTPUT"
          echo "tag=${NEXT_TAG}" >> "$GITHUB_OUTPUT"

  package:
    name: Package ${{ matrix.os-name }}
    needs: bump-version
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        include:
          - os: macos-latest
            os-name: macOS (DMG)
            artifact-name: macos-dmg
            artifact-path: composeApp/build/compose/binaries/main/dmg/*.dmg
            gradle-task: ":composeApp:packageDmg"
          - os: windows-latest
            os-name: Windows (MSI)
            artifact-name: windows-msi
            artifact-path: composeApp/build/compose/binaries/main/msi/*.msi
            gradle-task: ":composeApp:packageMsi"
          - os: ubuntu-latest
            os-name: Linux (DEB)
            artifact-name: linux-deb
            artifact-path: composeApp/build/compose/binaries/main/deb/*.deb
            gradle-task: ":composeApp:packageDeb"
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Set up JDK 17
        uses: actions/setup-java@v4
        with:
          distribution: 'temurin'
          java-version: '17'

      - name: Setup Gradle
        uses: gradle/actions/setup-gradle@v4

      - name: Build Package (${{ matrix.os-name }})
        shell: bash
        run: |
          ./gradlew ${{ matrix.gradle-task }} -PappVersion=${{ needs.bump-version.outputs.version }}

      - name: Upload Artifact
        uses: actions/upload-artifact@v4
        with:
          name: ${{ matrix.artifact-name }}
          path: ${{ matrix.artifact-path }}
          if-no-files-found: error

  create-release:
    name: Create GitHub Release
    needs:
      - bump-version
      - package
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Download all packaged artifacts
        uses: actions/download-artifact@v4
        with:
          path: release-assets

      - name: Publish GitHub Release
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          RELEASE_TAG: ${{ needs.bump-version.outputs.tag }}
          RELEASE_VERSION: ${{ needs.bump-version.outputs.version }}
        run: |
          mkdir -p dist
          find release-assets -type f \( -name "*.dmg" -o -name "*.msi" -o -name "*.deb" \) -exec cp {} dist/ \;

          echo "Files prepared for release:"
          ls -lh dist/

          RELEASE_BODY="### WoW Backup ${RELEASE_TAG}

          Automated release build for **WoW Backup v${RELEASE_VERSION}**.

          #### Available Packages
          - **macOS**: \`.dmg\` installer (Apple Silicon & Intel)
          - **Windows**: \`.msi\` Windows Installer
          - **Linux**: \`.deb\` package (Debian / Ubuntu)

          ---
          For detailed setup and installation notes, please refer to [INSTALL.md](https://github.com/${{ github.repository }}/blob/${RELEASE_TAG}/INSTALL.md)."

          gh release create "${RELEASE_TAG}" dist/* \
            --title "WoW Backup ${RELEASE_TAG}" \
            --notes "${RELEASE_BODY}"