name: CI/CD

# Pushes to Gitea trigger this. GitHub (origin) stays a backup and does not deploy.
on:
  push:
    branches: [master]
  pull_request:
    branches: [master]

concurrency:
  group: flatrender-cicd-${{ github.ref }}
  cancel-in-progress: true

jobs:
  # ── CI: fast frontend type-check before the (long) deploy build ───────────────
  web-check:
    name: "CI · Web (tsc)"
    runs-on: ubuntu-latest
    container:
      image: mirror.soroushasadi.com/node:20-alpine
      options: --add-host=gitea:host-gateway
    steps:
      - name: Checkout (tarball)
        env:
          TOKEN: ${{ github.token }}
          SHA: ${{ github.sha }}
        run: |
          wget -q --header "Authorization: Bearer ${TOKEN}" \
            "${{ github.server_url }}/api/v1/repos/${{ github.repository }}/archive/${SHA}.tar.gz" \
            -O /tmp/repo.tar.gz
          tar -xzf /tmp/repo.tar.gz --strip-components=1

      - name: Install deps
        run: |
          npm ci --no-audit --no-fund \
            --registry https://mirror.soroushasadi.com/repository/npm-group/ \
            --fetch-retries=5 --fetch-retry-maxtimeout=120000

      - name: TypeScript check
        run: npx tsc --noEmit

  # ── Deploy: build + bring up the whole compose stack on the server ────────────
  deploy:
    name: "Deploy · full stack"
    runs-on: self-hosted
    needs: [web-check]
    if: github.event_name == 'push' && github.ref == 'refs/heads/master'
    timeout-minutes: 50
    env:
      # act runner host mode ships a minimal PATH — extend so docker/snap resolve.
      PATH: /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin
      # Lock the compose project name so volumes keep a STABLE prefix across deploys
      # regardless of the runner's checkout directory (prevents orphaned-volume data loss).
      COMPOSE_PROJECT_NAME: flatrender
      COMPOSE_FILE: docker-compose.v2.yml
      DOCKER_BUILDKIT: "1"
      COMPOSE_DOCKER_CLI_BUILD: "1"
    steps:
      - name: Checkout
        env:
          TOKEN: ${{ github.token }}
          REF: ${{ github.ref }}
        run: |
          git init
          git remote add origin "${{ github.server_url }}/${{ github.repository }}.git"
          git config http.extraheader "Authorization: Bearer ${TOKEN}"
          git fetch --depth=1 origin "${REF}"
          git checkout -f FETCH_HEAD

      - name: Write .env (from ENV_FILE secret)
        run: printf '%s' "$ENV_FILE" > .env
        env:
          ENV_FILE: ${{ secrets.ENV_FILE }}

      - name: Backup database (if running)
        run: |
          if docker ps -a --format '{{.Names}}' | grep -q '^fr2-postgres$'; then
            mkdir -p /opt/flatrender-backups
            set -a; . ./.env 2>/dev/null || true; set +a
            STAMP=$(date +%Y%m%d-%H%M%S)
            echo "Dumping DB → /opt/flatrender-backups/flatrender-$STAMP.sql"
            docker exec fr2-postgres pg_dump -U "${POSTGRES_USER:-postgres}" flatrender \
              > "/opt/flatrender-backups/flatrender-$STAMP.sql" || echo "backup failed (non-fatal)"
            # keep only the 14 most recent dumps
            ls -1t /opt/flatrender-backups/flatrender-*.sql 2>/dev/null | tail -n +15 | xargs -r rm -f
          else
            echo "fr2-postgres not running yet — first deploy, no backup needed."
          fi

      - name: Build images
        run: docker compose build --parallel

      - name: Start stack
        run: docker compose up -d --remove-orphans

      - name: Wait for gateway healthy
        run: |
          for i in $(seq 1 30); do
            S=$(docker inspect --format='{{.State.Health.Status}}' fr2-gateway 2>/dev/null || echo missing)
            echo "  [$i/30] gateway: $S"
            [ "$S" = "healthy" ] && echo "OK gateway healthy" && break
            [ "$i" = "30" ] && echo "TIMEOUT gateway" && docker compose logs --tail=60 gateway content-svc identity-svc && exit 1
            sleep 6
          done

      - name: Wait for frontend healthy
        run: |
          for i in $(seq 1 24); do
            S=$(docker inspect --format='{{.State.Health.Status}}' fr2-frontend 2>/dev/null || echo missing)
            echo "  [$i/24] frontend: $S"
            [ "$S" = "healthy" ] && echo "OK frontend healthy" && break
            [ "$i" = "24" ] && echo "TIMEOUT frontend" && docker compose logs --tail=60 frontend && exit 1
            sleep 5
          done

      - name: Prune dangling images
        if: success()
        run: docker image prune -f