name: CI

on:
  push:
    branches: [master, main]
  pull_request:

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

jobs:
  # Jobs activate only when their locked dependency manifests exist.
  detect:
    runs-on: ubuntu-latest
    outputs:
      backend: ${{ steps.dirs.outputs.backend }}
      frontend: ${{ steps.dirs.outputs.frontend }}
    steps:
      - uses: actions/checkout@v4
      - id: dirs
        run: |
          echo "backend=$([ -f backend/uv.lock ] && echo true || echo false)" >> "$GITHUB_OUTPUT"
          echo "frontend=$([ -f frontend/pnpm-lock.yaml ] && echo true || echo false)" >> "$GITHUB_OUTPUT"

  backend:
    name: Backend (lint / type / test / build)
    needs: detect
    if: needs.detect.outputs.backend == 'true'
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: backend
    services:
      postgres:
        image: postgres:17-alpine
        env:
          POSTGRES_USER: postgres
          POSTGRES_PASSWORD: postgres
          POSTGRES_DB: finance_test
        ports:
          - 5432:5432
        options: >-
          --health-cmd "pg_isready -U postgres"
          --health-interval 5s
          --health-timeout 5s
          --health-retries 12
      redis:
        image: redis:7-alpine
        ports:
          - 6379:6379
        options: >-
          --health-cmd "redis-cli ping"
          --health-interval 5s
          --health-timeout 5s
          --health-retries 12
    env:
      DATABASE_URL: postgresql+psycopg://postgres:postgres@localhost:5432/finance_test
      REDIS_URL: redis://localhost:6379/0
      CELERY_BROKER_URL: redis://localhost:6379/1
      IMPORTS_KEK_B64: MDAxMTIyMzM0NDU1NjY3Nzg4ODlhYWJiY2NkZGVlZg==
      RLS_DATABASE_URL: postgresql+psycopg://finance_app_test:app-test@localhost:5432/finance_test
      S3_ENDPOINT_URL: http://localhost:9000
      S3_REGION: us-east-1
      S3_ACCESS_KEY_ID: minioadmin
      S3_SECRET_ACCESS_KEY: minioadmin
      S3_BUCKET_STATEMENTS: finance-statements
    steps:
      - uses: actions/checkout@v4
      - uses: astral-sh/setup-uv@v5
        with:
          enable-cache: true
          cache-dependency-glob: backend/uv.lock
      - name: Install dependencies
        run: uv sync --locked
      - name: Lint (ruff check)
        run: uv run ruff check .
      - name: Format (ruff format)
        run: uv run ruff format --check .
      - name: Type check (mypy)
        run: uv run mypy .
      - name: Create restricted app role and migrate
        run: |
          uv run python -c "from sqlalchemy import create_engine,text; e=create_engine('${DATABASE_URL}'); c=e.connect(); c.execute(text(\"CREATE ROLE finance_app_test LOGIN PASSWORD 'app-test' NOSUPERUSER NOBYPASSRLS\")); c.execute(text('GRANT CONNECT ON DATABASE finance_test TO finance_app_test')); c.execute(text('GRANT USAGE ON SCHEMA public TO finance_app_test')); c.execute(text('ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT SELECT, INSERT, UPDATE, DELETE ON TABLES TO finance_app_test')); c.commit(); c.close(); e.dispose()"
          uv run alembic upgrade head
      - name: Start MinIO (S3-compatible test storage)
        run: |
          docker run -d --name minio-test -p 9000:9000 \
            -e MINIO_ROOT_USER=minioadmin -e MINIO_ROOT_PASSWORD=minioadmin \
            minio/minio:latest server /data
          for i in $(seq 1 30); do
            curl -sf http://localhost:9000/minio/health/live && exit 0
            sleep 2
          done
          echo "MinIO did not become healthy" && exit 1
      - name: Test (pytest)
        run: uv run pytest -ra
      - name: Build provider-neutral image
        run: docker build -f ../infra/docker/Dockerfile.backend -t finance-api:ci .

  frontend:
    name: Frontend (lint / type / test / build)
    needs: detect
    if: needs.detect.outputs.frontend == 'true'
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: frontend
    steps:
      - uses: actions/checkout@v4
      - uses: pnpm/action-setup@v4
        with:
          version: 9
      - uses: actions/setup-node@v4
        with:
          node-version: 22
          cache: pnpm
          cache-dependency-path: frontend/pnpm-lock.yaml
      - name: Install dependencies
        run: pnpm install --frozen-lockfile
      - name: Lint
        run: pnpm lint
      - name: Type check
        run: pnpm typecheck
      - name: Test (vitest, non-watch)
        run: pnpm test
      - name: Build
        run: pnpm build

  compose:
    name: Compose & nginx validation
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Prepare env from example (placeholders only)
        run: cp infra/.env.example infra/.env
      - name: Validate compose file
        run: docker compose -f infra/docker-compose.yml config -q
      - name: Boot infra services and wait for healthchecks
        run: docker compose -f infra/docker-compose.yml up -d --wait --wait-timeout 180 postgres redis minio mailpit
      - name: Show service status
        run: docker compose -f infra/docker-compose.yml ps
      - name: Validate nginx config
        run: |
          docker run --rm --network none --add-host api:127.0.0.1 \
            -v "$PWD/infra/nginx/nginx.conf:/etc/nginx/conf.d/default.conf:ro" \
            nginx:1.27-alpine nginx -t
      - name: Teardown
        if: always()
        run: docker compose -f infra/docker-compose.yml down -v --remove-orphans