name: 数据库迁移 - 回滚（危险）

on:
  workflow_dispatch:
    inputs:
      confirm:
        description: '将删除所有迁移创建的表及其数据，不可恢复。确认请输入 DELETE（大写）'
        required: true
        default: ''

concurrency:
  group: migrate
  cancel-in-progress: false

env:
  REGISTRY: git.lzcwy.cn
  IMAGE: git.lzcwy.cn/zhengchiliu/zt-closet-backend
  MIGRATE_TAG: migrate

jobs:
  migrate-down:
    runs-on: ubuntu-latest
    steps:
      - name: 校验确认词
        env:
          IN_CONFIRM: ${{ gitea.event.inputs.confirm }}
        run: |
          if [ "${IN_CONFIRM:-}" != "DELETE" ]; then
            echo "确认词不对（收到 '${IN_CONFIRM:-空}'）。必须输入 DELETE 才会执行。" >&2
            exit 1
          fi
          echo "确认通过"

      - name: 拉取代码
        uses: actions/checkout@v4

      - name: 确认 docker 可用
        run: |
          docker version --format 'Server: {{.Server.Version}}'

      - name: 登录 Gitea 镜像仓库
        env:
          REGISTRY_USER: ${{ secrets.ZT_CLOSET_REGISTRY_USER }}
          REGISTRY_TOKEN: ${{ secrets.ZT_CLOSET_REGISTRY_TOKEN }}
        run: |
          echo "$REGISTRY_TOKEN" | docker login "$REGISTRY" -u "$REGISTRY_USER" --password-stdin

      - name: 构建并推送迁移镜像
        run: |
          docker build \
            --build-arg GOPROXY=https://goproxy.cn,direct \
            -f scripts/dockerfile/Dockerfile.migrate \
            -t "$IMAGE:$MIGRATE_TAG" \
            .
          docker push "$IMAGE:$MIGRATE_TAG"

      - name: 生产机执行回滚（结束即删容器）
        env:
          SSH_KEY: ${{ secrets.ZT_CLOSET_PROD_SSH_KEY }}
          SSH_HOST: ${{ vars.ZT_CLOSET_PROD_SSH_HOST }}
          SSH_USER: ${{ vars.ZT_CLOSET_PROD_SSH_USER }}
        run: |
          mkdir -p ~/.ssh && chmod 700 ~/.ssh
          printf '%s\n' "$SSH_KEY" > ~/.ssh/deploy_key
          chmod 600 ~/.ssh/deploy_key
          SSHOPT="-i ~/.ssh/deploy_key -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null"

          ssh $SSHOPT "$SSH_USER@$SSH_HOST" 'bash -s' <<'REMOTE'
          set -e
          DIR=/opt/zt-closet
          IMAGE=git.lzcwy.cn/zhengchiliu/zt-closet-backend:migrate

          cd "$DIR" || { echo "目录不存在: $DIR"; exit 1; }
          [ -f configs/config.yaml ] || { echo "缺 configs/config.yaml"; exit 1; }

          docker pull "$IMAGE"

          docker run --rm \
            --network host \
            -v "$DIR/configs:/app/configs:ro" \
            -v zt-go-build-cache:/root/.cache/go-build \
            -e TZ=Asia/Shanghai \
            "$IMAGE" down
          REMOTE