# 构建并推送 Docker 镜像到 Docker Hub
# 前置条件：在 GitHub 仓库 Secrets 中配置
#   DOCKERHUB_USERNAME — Docker Hub 用户名
#   DOCKERHUB_TOKEN    — Docker Hub Access Token（需 Read & Write 权限）

name: Docker

on:
  push:
    branches:
      - main
    tags:
      - 'v*'

env:
  IMAGE_NAME: hangzhang714128/jiang13-forum

jobs:
  docker:
    runs-on: ubuntu-latest

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

      - name: 计算镜像标签与版本
        id: meta
        run: |
          IMAGE="${{ env.IMAGE_NAME }}"
          TAGS="${IMAGE}:latest"
          if [[ "${{ github.ref_type }}" == "tag" ]]; then
            RAW="${GITHUB_REF#refs/tags/}"
            VER="${RAW#v}"
            TAGS="${TAGS},${IMAGE}:${VER},${IMAGE}:${RAW}"
            echo "version=${VER}" >> "$GITHUB_OUTPUT"
          else
            SHA="${GITHUB_SHA::7}"
            TAGS="${TAGS},${IMAGE}:sha-${SHA}"
            echo "version=dev" >> "$GITHUB_OUTPUT"
          fi
          echo "tags=${TAGS}" >> "$GITHUB_OUTPUT"

      - name: 登录 Docker Hub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: 构建并推送镜像
        uses: docker/build-push-action@v6
        with:
          context: .
          push: true
          platforms: linux/amd64
          build-args: |
            VERSION=${{ steps.meta.outputs.version }}
            IMAGE_PREFIX=
          tags: ${{ steps.meta.outputs.tags }}