# Gitea Actions 工作流：构建 Docker 镜像并通过 SSH 触发部署
# 前置：
#   1. Gitea Runner 已开放 Docker 访问（挂载 /var/run/docker.sock 到容器内）
#   2. 仓库 Secret 中已添加 SSH_PRIVATE_KEY（内容为部署机私钥全文）
name: build-and-deploy

on:
  push:
    branches: [main]
  workflow_dispatch:

env:
  DEPLOY_HOST: bh.vps.honor3.com
  DEPLOY_USER: root
  DEPLOY_DIR: /app/registry
  IMAGE_NAME: registry-app

jobs:
  build-and-deploy:
    runs-on: ubuntu-latest
    steps:
      - name: 检出代码
        uses: actions/checkout@v4

      - name: 生成镜像 tag（短 commit）
        id: meta
        run: echo "tag=$(echo ${GITHUB_SHA} | cut -c1-8)" >> "$GITHUB_OUTPUT"

      - name: 构建 Docker 镜像
        run: |
          docker build \
            -t "${IMAGE_NAME}:${{ steps.meta.outputs.tag }}" \
            -t "${IMAGE_NAME}:latest" \
            .

      - name: 准备 SSH 私钥
        env:
          SSH_PRIVATE_KEY: ${{ secrets.SSH_PRIVATE_KEY }}
        run: |
          mkdir -p ~/.ssh
          printf "%s\n" "${SSH_PRIVATE_KEY}" > ~/.ssh/deploy_key
          chmod 600 ~/.ssh/deploy_key
          ssh-keyscan -H "${DEPLOY_HOST}" >> ~/.ssh/known_hosts 2>/dev/null

      - name: 上传 start.sh 到部署目录
        run: |
          ssh -i ~/.ssh/deploy_key "${DEPLOY_USER}@${DEPLOY_HOST}" "mkdir -p ${DEPLOY_DIR}"
          scp -i ~/.ssh/deploy_key deploy/start.sh "${DEPLOY_USER}@${DEPLOY_HOST}:${DEPLOY_DIR}/start.sh"
          ssh -i ~/.ssh/deploy_key "${DEPLOY_USER}@${DEPLOY_HOST}" "chmod +x ${DEPLOY_DIR}/start.sh"

      - name: 远程执行部署
        run: |
          ssh -i ~/.ssh/deploy_key "${DEPLOY_USER}@${DEPLOY_HOST}" \
            "IMAGE_TAG=${{ steps.meta.outputs.tag }} ${DEPLOY_DIR}/start.sh"