# 發佈流程：push `v*` tag 或手動觸發(workflow_dispatch)時,交叉編譯各平台
# 二進制並上傳到 Gitea Release。
#
# token 一律使用倉庫 secret `ACTION_TOKEN`(自架 runner 不保證有自動簽發的
# github.token,故 checkout 與發佈皆明確指定),需具備本倉庫 contents 讀寫權限。
name: Release

on:
  push:
    tags:
      - 'v*'
  workflow_dispatch:
    inputs:
      tag:
        description: '要發佈的既有 tag(例如 v1.2.3)'
        required: true

jobs:
  release:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          # tag push 與手動觸發都 checkout 指定 tag 的 commit
          ref: ${{ inputs.tag || github.ref_name }}
          token: ${{ secrets.ACTION_TOKEN }}

      - name: Set up Go
        uses: actions/setup-go@v5
        with:
          go-version-file: go.mod
          # 自架 runner 的 cache server 未必可用,關閉以免誤失敗
          cache: false

      - name: Build
        env:
          RELEASE_TAG: ${{ inputs.tag || github.ref_name }}
        run: |
          set -eu
          echo "RELEASE_TAG=$RELEASE_TAG" >> "$GITHUB_ENV"
          VERSION="${RELEASE_TAG#v}"
          mkdir -p dist
          # chi/pgx 皆為純 Go,關閉 CGO 交叉編譯出靜態執行檔;模板與
          # Tailwind 產物已提交且以 go:embed 內嵌,不需 Node。
          for target in linux/amd64 linux/arm64 darwin/amd64 darwin/arm64; do
            os=${target%/*}
            arch=${target#*/}
            staging="dist/alterminal_${VERSION}_${os}_${arch}"
            mkdir -p "$staging"
            CGO_ENABLED=0 GOOS=$os GOARCH=$arch \
              go build -trimpath -ldflags='-s -w' -o "$staging/alterminal" ./cmd/alterminal
            tar -C "$staging" -czf "$staging.tar.gz" alterminal
            rm -rf "$staging"
          done
          (cd dist && sha256sum *.tar.gz > checksums.txt)
          ls -l dist

      - name: Publish to release
        uses: https://gitea.com/actions/gitea-release-action@v1
        with:
          token: ${{ secrets.ACTION_TOKEN }}
          tag_name: ${{ env.RELEASE_TAG }}
          name: ${{ env.RELEASE_TAG }}
          files: dist/*
          body: |
            ### 下載

            依平台下載對應的 `alterminal_<版本>_<os>_<arch>.tar.gz`,並以 `checksums.txt` 驗證 SHA-256。

            為單一執行檔(模板與樣式已內嵌),設定 `DB_*` 環境變數後直接執行 `./alterminal`,部署細節見 README。