name: Laravel CI-CD

on:
  push:
    branches: ["main"]

env:
  REGISTRY: gitea.leonmorival.com
  IMAGE_NAME: daily_meal/bemeal-api

jobs:

  # =========================
  # TESTS
  # =========================
  test:
    name: Tests Unitaires
    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Run Tests
        uses: docker://laravelsail/php84-composer:latest
        env:
          APP_ENV: testing
          APP_KEY: base64:AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=
          DB_CONNECTION: sqlite
          DB_DATABASE: ":memory:"
        with:
          args: >
            bash -c "composer install --no-interaction --ignore-platform-req=ext-intl
            && php artisan test"

  # =========================
  # BUILD & PUSH
  # =========================
  build:
    name: Build & Push Docker
    needs: test
    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Login to Gitea Registry
        run: |
          echo "${{ secrets.TOKEN_GITEA }}" \
          | docker login $REGISTRY \
          -u "${{ github.actor }}" \
          --password-stdin

      - name: Build & Push image
        run: |
          IMAGE=$REGISTRY/$IMAGE_NAME
          docker build -t "$IMAGE:${{ github.sha }}" -t "$IMAGE:latest" .
          docker push "$IMAGE:${{ github.sha }}"
          docker push "$IMAGE:latest"

  # =========================
  # DEPLOY BLUE / GREEN + SWITCH NGINX
  # =========================
  deploy:
    name: Deploy Blue/Green
    needs: build
    runs-on: ubuntu-latest

    steps:
      - name: Checkout deploy files
        uses: actions/checkout@v4

      - name: Upload docker-compose
        uses: appleboy/scp-action@v0.1.7
        with:
          host: ${{ secrets.SSH_HOST }}
          username: ${{ secrets.SSH_USER }}
          key: ${{ secrets.SSH_PRIVATE_KEY }}
          source: docker-compose.prod.yml
          target: ${{ secrets.DEPLOY_PATH || '/opt/bemeal' }}

      - name: Deploy via SSH
        uses: appleboy/ssh-action@v1.0.3
        env:
          IMAGE_TAG: ${{ github.sha }}
          REGISTRY: ${{ env.REGISTRY }}
          IMAGE_NAME: ${{ env.IMAGE_NAME }}
          DEPLOY_PATH: ${{ secrets.DEPLOY_PATH }}
        with:
          host: ${{ secrets.SSH_HOST }}
          username: ${{ secrets.SSH_USER }}
          key: ${{ secrets.SSH_PRIVATE_KEY }}
          envs: REGISTRY,IMAGE_NAME,IMAGE_TAG,DEPLOY_PATH
          script: |
            set -eu

            APP_DIR="${DEPLOY_PATH:-/opt/bemeal}"
            COMPOSE_FILE="docker-compose.prod.yml"
            NGINX_CONTAINER="nginx"

            cd "$APP_DIR"

            COMPOSE="docker compose --env-file .env.prod -f $COMPOSE_FILE"

            IMAGE="$REGISTRY/$IMAGE_NAME:$IMAGE_TAG"

            echo "Pull image: $IMAGE"
            docker pull "$IMAGE"

            echo "Start shared services"
            $COMPOSE up -d pgsql redis meilisearch

            # =========================
            # BLUE / GREEN DETECTION
            # =========================
            ACTIVE=""

            if docker ps --format '{{.Names}}' | grep -q "bemeal-api-blue"; then
              if [ "$(docker inspect -f '{{.State.Health.Status}}' bemeal-api-blue 2>/dev/null || true)" = "healthy" ]; then
                ACTIVE="blue"
              fi
            fi

            if docker ps --format '{{.Names}}' | grep -q "bemeal-api-green"; then
              if [ "$(docker inspect -f '{{.State.Health.Status}}' bemeal-api-green 2>/dev/null || true)" = "healthy" ]; then
                ACTIVE="green"
              fi
            fi

            if [ "$ACTIVE" = "blue" ]; then
              TARGET="green"
            else
              TARGET="blue"
            fi

            TARGET_SERVICE="bemeal-api-$TARGET"

            echo "Deploying to $TARGET_SERVICE"

            IMAGE="$REGISTRY/$IMAGE_NAME:$IMAGE_TAG" \
            $COMPOSE up -d --force-recreate --no-deps "$TARGET_SERVICE"

            # =========================
            # HEALTHCHECK
            # =========================
            echo "Waiting for healthcheck..."

            for i in $(seq 1 60); do
              STATUS="$(docker inspect -f '{{.State.Health.Status}}' "$TARGET_SERVICE" 2>/dev/null || true)"

              if [ "$STATUS" = "healthy" ]; then
                break
              fi

              sleep 2
            done

            if [ "$STATUS" != "healthy" ]; then
              echo "Healthcheck failed"
              docker logs --tail=200 "$TARGET_SERVICE" || true
              exit 1
            fi

            docker exec "$TARGET_SERVICE" wget -qO- http://127.0.0.1/api/health >/dev/null || exit 1

            echo "API healthy → switching Nginx"

            # =========================
            # NGINX SWITCH AUTOMATIQUE
            # =========================
            if [ "$TARGET" = "blue" ]; then
              echo "server bemeal-api-blue:80;" > /opt/bemeal/nginx/upstream.conf
            else
              echo "server bemeal-api-green:80;" > /opt/bemeal/nginx/upstream.conf
            fi

            docker exec "$NGINX_CONTAINER" nginx -s reload

            echo "Deployment successful"

            # =========================
            # CLEAN OLD CONTAINER
            # =========================
            if [ -n "$ACTIVE" ] && [ "$ACTIVE" != "$TARGET" ]; then
              echo "Stopping old $ACTIVE"
              $COMPOSE stop "bemeal-api-$ACTIVE" || true
              $COMPOSE rm -f "bemeal-api-$ACTIVE" || true
            fi