name: Build and Push to Registry

on:
  push:
    branches:
      - high-performance
      - main

jobs:
  detect-changes:
    runs-on: ubuntu-latest
    outputs:
      services_csv: ${{ steps.detect.outputs.services_csv }}
      has_changes: ${{ steps.detect.outputs.has_changes }}
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Detect changed services
        id: detect
        run: |
          set -euo pipefail
          
          if git rev-parse --verify HEAD^ >/dev/null 2>&1; then
            CHANGED_FILES=$(git diff --name-only HEAD^ HEAD)
          else
            CHANGED_FILES=$(git ls-files)
          fi
          
          LAST_COMMIT_MSG=$(git log -1 --pretty=%B | tr '\n' ' ')
          
          echo "Changed files:"
          echo "$CHANGED_FILES"
          
          ALL_SERVICES='gateway,users,companies,jobs,leads,job-seekers,customers,payments,employees,photographers,makeup-artists,tutors,developers,video-editors,graphic-designers,social-media-managers,fitness-trainers,catering-services,ugc-content-creators,cron'
          
          # Force full build for explicit trigger commits
          if echo "$LAST_COMMIT_MSG" | grep -Eiq 'trigger build|force build|rebuild all'; then
            echo "services_csv=$ALL_SERVICES" >> "$GITHUB_OUTPUT"
            echo "has_changes=true" >> "$GITHUB_OUTPUT"
            exit 0
          fi
          
          # Build everything for workflow/docker/shared backend changes
          if echo "$CHANGED_FILES" | grep -Eq '^(\.github/workflows/|Dockerfile|Cargo\.toml|Cargo\.lock|crates/)'; then
            echo "services_csv=$ALL_SERVICES" >> "$GITHUB_OUTPUT"
            echo "has_changes=true" >> "$GITHUB_OUTPUT"
            exit 0
          fi
          
          SERVICES=''
          add_service() {
            local svc="$1"
            case ",${SERVICES}," in
              *",${svc},"*) ;;
              *)
                if [ -z "$SERVICES" ]; then
                  SERVICES="$svc"
                else
                  SERVICES="$SERVICES,$svc"
                fi
                ;;
            esac
          }
          
          while IFS= read -r f; do
            case "$f" in
              apps/gateway/*) add_service "gateway" ;;
              apps/users/*) add_service "users" ;;
              apps/companies/*) add_service "companies" ;;
              apps/jobs/*) add_service "jobs" ;;
              apps/leads/*) add_service "leads" ;;
              apps/job_seekers/*) add_service "job-seekers" ;;
              apps/customers/*) add_service "customers" ;;
              apps/payments/*) add_service "payments" ;;
              apps/employees/*) add_service "employees" ;;
              apps/photographers/*) add_service "photographers" ;;
              apps/makeup_artists/*) add_service "makeup-artists" ;;
              apps/tutors/*) add_service "tutors" ;;
              apps/developers/*) add_service "developers" ;;
              apps/video_editors/*) add_service "video-editors" ;;
              apps/graphic_designers/*) add_service "graphic-designers" ;;
              apps/social_media_managers/*) add_service "social-media-managers" ;;
              apps/fitness_trainers/*) add_service "fitness-trainers" ;;
              apps/catering_services/*) add_service "catering-services" ;;
              apps/ugc_content_creators/*) add_service "ugc-content-creators" ;;
              apps/cron/*) add_service "cron" ;;
            esac
          done <<< "$CHANGED_FILES"
          
          if [ -z "$SERVICES" ]; then
            echo "services_csv=" >> "$GITHUB_OUTPUT"
            echo "has_changes=false" >> "$GITHUB_OUTPUT"
          else
            echo "services_csv=$SERVICES" >> "$GITHUB_OUTPUT"
            echo "has_changes=true" >> "$GITHUB_OUTPUT"
          fi

  build:
    needs: detect-changes
    if: needs.detect-changes.outputs.has_changes == 'true'
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        service:
          - gateway
          - users
          - companies
          - jobs
          - leads
          - job-seekers
          - customers
          - payments
          - employees
          - photographers
          - makeup-artists
          - tutors
          - developers
          - video-editors
          - graphic-designers
          - social-media-managers
          - fitness-trainers
          - catering-services
          - ugc-content-creators
          - cron
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Login to Registry
        uses: docker/login-action@v3
        with:
          registry: registry.nxtgauge.com
          username: admin
          password: Ashwin@2026

      - name: Build and push
        env:
          SERVICES_CSV: ${{ needs.detect-changes.outputs.services_csv }}
        run: |
          set -euo pipefail
          SHA="${{ github.sha }}"
          
          if [ -n "$SERVICES_CSV" ] && ! echo ",$SERVICES_CSV," | grep -q ",${{ matrix.service }},"; then
            echo "Skipping unchanged service: ${{ matrix.service }}"
            exit 0
          fi
          
          docker buildx build --push \
            -f Dockerfile.simple \
            --build-arg SERVICE_NAME=${{ matrix.service }} \
            -t "registry.nxtgauge.com/nxtgauge-rust-${{ matrix.service }}:${SHA}" \
            -t "registry.nxtgauge.com/nxtgauge-rust-${{ matrix.service }}:latest" \
            .