name: Rollback (develop)

# Trigger manually from the Gitea Actions UI.
# Leave "sha" empty to roll back to the previous deploy.
# Fill "sha" in (short 7-char form, e.g. a3f9c21) to roll back to the newest
# build for that commit. Build tags include a UTC timestamp and commit SHA.
on:
    workflow_dispatch:
        inputs:
            sha:
                description: 'Short commit SHA to roll back to (empty = previous deploy)'
                required: false
                default: ''

jobs:
    rollback:
        runs-on: ubuntu-latest
        steps:
            - name: Determine target tag
              run: |
                  if [ -n "${{ gitea.event.inputs.sha }}" ]; then
                    SHA="${{ gitea.event.inputs.sha }}"
                    TAG=$(docker images robot-market --format '{{.Tag}}' \
                      | grep -E "-${SHA}$" \
                      | sort -r \
                      | head -n 1)
                    # Keep accepting legacy SHA-only tags created before timestamped tags.
                    if [ -z "$TAG" ]; then
                      TAG="$SHA"
                    fi
                  else
                    TAG=$(grep IMAGE_TAG /opt/robot-market-front/.env.previous | cut -d= -f2)
                  fi
                  echo "Rolling back to: $TAG"
                  echo "IMAGE_TAG=$TAG" > /opt/robot-market-front/.env

            - name: Verify that image actually exists locally
              run: |
                  TAG=$(grep IMAGE_TAG /opt/robot-market-front/.env | cut -d= -f2)
                  docker image inspect robot-market:$TAG > /dev/null

            - name: Redeploy target image
              run: |
                  docker compose --env-file /opt/robot-market-front/.env \
                    -f /opt/robot-market-front/docker-compose.yml \
                    up -d --force-recreate