name: Deploy Webapp (Blue-Green)

on:
  workflow_dispatch:
    inputs:
      image_tag:
        description: '镜像tag，留空则使用commit短哈希'
        required: false

jobs:
  deploy:
    runs-on: deploy-host
    steps:
      - uses: actions/checkout@v4

      - name: 确定镜像tag
        id: vars
        run: |
          TAG="${{ github.event.inputs.image_tag }}"
          [ -z "$TAG" ] && TAG=$(git rev-parse --short HEAD)
          echo "tag=$TAG" >> "$GITHUB_OUTPUT"

      - name: 构建镜像
        run: |
          docker build -t im-webapp:${{ steps.vars.outputs.tag }} \
            --build-arg TINODE_API_KEY="${{ secrets.TINODE_API_KEY }}" .

      - name: 蓝绿部署
        run: |
          IMAGE=im-webapp:${{ steps.vars.outputs.tag }} /opt/apps/im-webapp/deploy.sh