name: Create Release Builds

on:
  workflow_dispatch:
    inputs:
      tag_name:
        description: "Release name (e.g. v1.0.5 or v1.2-rc1)"
        required: true
      prerelease:
        description: "Is this a prerelease?"
        required: true
        type: boolean
      custom_message:
        description: "Optional pre-changelog message"
        required: false

jobs:
  collect-release:
    name: Release ${{ github.event.inputs.tag_name }} Builds
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Download Windows Full Build
        uses: dawidd6/action-download-artifact@v6
        with:
          workflow: windows.yml
          name: Codename Engine
          path: artifacts/windows/full_build
          allow_forks: false

      - name: Download Windows Executable
        uses: dawidd6/action-download-artifact@v6
        with:
          workflow: windows.yml
          name: Codename Engine (Executable Only)
          path: artifacts/windows/executable
          allow_forks: false

      - name: Download Mac OS Full Build
        uses: dawidd6/action-download-artifact@v6
        with:
          workflow: macos.yml
          name: Codename Engine
          path: artifacts/macos/full_build
          allow_forks: false

      - name: Download Mac OS Executable
        uses: dawidd6/action-download-artifact@v6
        with:
          workflow: macos.yml
          name: Codename Engine (Executable Only)
          path: artifacts/macos/executable
          allow_forks: false

      - name: Download Linux Full Build
        uses: dawidd6/action-download-artifact@v6
        with:
          workflow: linux.yml
          name: Codename Engine
          path: artifacts/linux/full_build
          allow_forks: false

      - name: Download Linux Executable
        uses: dawidd6/action-download-artifact@v6
        with:
          workflow: linux.yml
          name: Codename Engine (Executable Only)
          path: artifacts/linux/executable
          allow_forks: false

      - name: Prepare artifacts
        run: |
          mkdir -p renamed

          # Windows
          mv artifacts/windows/executable/CodenameEngine.exe renamed/update-windows.exe
          cd artifacts/windows/full_build
          zip -r ../../../renamed/"Codename Engine-Windows.zip" *
          cd -

          # Mac OS
          mv artifacts/macos/executable/CodenameEngine renamed/update-mac
          cd artifacts/macos/full_build
          if [ -f CodenameEngine.tar.gz ]; then
            # Keep tar.gz as-is
            cp CodenameEngine.tar.gz ../../../renamed/"Codename Engine-Mac.tar.gz"
          else
            # Zip contents at root
            zip -r ../../../renamed/"Codename Engine-Mac.zip" *
          fi
          cd -

          # Linux
          mv artifacts/linux/executable/CodenameEngine renamed/update-linux
          cd artifacts/linux/full_build
          zip -r ../../../renamed/"Codename Engine-Linux.zip" *
          cd -

      - name: Find Base Release
        id: get_base_release
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          echo "Looking for base release..."
          PRERELEASE="${{ github.event.inputs.prerelease }}"

          if [[ "$PRERELEASE" == "true" ]]; then
            BASE=$(gh release list --repo ${{ github.repository }} --json tagName,isPrerelease,isDraft \
              -L 50 -q '.[] | select(.isPrerelease==false and .isDraft==false) | .tagName' | head -n 1)

            if [ -z "$BASE" ]; then
              echo "No stable release found, resorting to prereleases."
              BASE=$(gh release list --repo ${{ github.repository }} --json tagName,isDraft \
                -L 1 -q '.[] | select(.isDraft==false) | .tagName')
            fi
          else
            BASE=$(gh release list --repo ${{ github.repository }} --json tagName,isPrerelease,isDraft \
              -L 50 -q '.[] | select(.isPrerelease==false and .isDraft==false) | .tagName' | head -n 1)
          fi

          if [ -z "$BASE" ]; then
            echo "No older release found; please make sure to have at least one older release containing the 'update-assets.zip' file in order to generate the differences."
            exit 1
          else
            echo "Base release: $BASE"
            echo "base_release=$BASE" >> $GITHUB_OUTPUT
          fi

      - name: Prepare update-assets.zip
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          echo "Looking for 'update-assets.zip' from release '${{ steps.get_base_release.outputs.base_release }}'"
          ASSETS=$(gh release view "${{ steps.get_base_release.outputs.base_release }}" \
            --repo "${{ github.repository }}" \
            --json assets \
            | jq -r '.assets[].name')

          if echo "$ASSETS" | grep -xq "update-assets.zip"; then
            mkdir -p update_assets_temp renamed
            echo "Downloading assets from release '${{ steps.get_base_release.outputs.base_release }}'"
            gh release download "${{ steps.get_base_release.outputs.base_release }}" \
              --repo ${{ github.repository }} \
              --pattern "update-assets.zip" \
              -D update_assets_temp

            unzip -q update_assets_temp/update-assets.zip -d update_assets_temp
            cd update_assets_temp
            zip -r ../renamed/update-assets.zip . -i assets
          else
            echo "No 'update-assets.zip' file found in release '${{ steps.get_base_release.outputs.base_release }}'; please make sure to have this file in that older release in order to generate the differences."
            exit 1
          fi

      - name: Prepare pre-changelog message
        id: pre_changelog_message
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          echo "Preparing a pre-changelog message..."

          BODY="If you would like to download the full builds of the engine from this release, please ignore the files starting with 'update-' as they're needed for the engine's internal autoupdater.\n\n"

          if [ -n "${{ github.event.inputs.custom_message }}" ]; then
            BODY="${{ github.event.inputs.custom_message }}\n${BODY}"
          fi

          {
            echo "body<<EOF"
            echo -e "$BODY"
            echo "EOF"
          } >> $GITHUB_OUTPUT
          echo -e "Final pre-changelog message:\n\n$BODY"

      - name: Create GitHub Release with Assets
        uses: softprops/action-gh-release@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          tag_name: ${{ github.event.inputs.tag_name }}
          name: Release ${{ github.event.inputs.tag_name }}
          draft: true
          prerelease: ${{ github.event.inputs.prerelease }}
          body: ${{ steps.build_body.outputs.body }}
          generate_release_notes: true
          files: |
            renamed/Codename Engine-Windows.zip
            renamed/Codename Engine-Mac.zip
            renamed/Codename Engine-Mac.tar.gz
            renamed/Codename Engine-Linux.zip
            renamed/update-assets.zip
            renamed/update-windows.exe
            renamed/update-mac
            renamed/update-linux