# LocalGreenChain CI Pipeline
# Agent 4: Production Deployment
#
# Runs on every push and pull request:
# - Linting and type checking
# - Unit and integration tests
# - Build verification

name: CI

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

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

env:
  NODE_ENV: test

jobs:
  # ==========================================================================
  # Lint and Type Check
  # ==========================================================================
  lint:
    name: Lint & Type Check
    runs-on: ubuntu-latest
    timeout-minutes: 10

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

      - name: Setup Bun
        uses: oven-sh/setup-bun@v1
        with:
          bun-version: latest

      - name: Install dependencies
        run: bun install --frozen-lockfile

      - name: Run ESLint
        run: bun run lint

      - name: Run TypeScript type check
        run: bunx tsc --noEmit

  # ==========================================================================
  # Unit Tests
  # ==========================================================================
  test:
    name: Unit Tests
    runs-on: ubuntu-latest
    timeout-minutes: 15

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

      - name: Setup Bun
        uses: oven-sh/setup-bun@v1
        with:
          bun-version: latest

      - name: Install dependencies
        run: bun install --frozen-lockfile

      - name: Run tests with coverage
        run: bun run test:coverage

      - name: Upload coverage reports
        uses: codecov/codecov-action@v3
        if: always()
        with:
          files: ./coverage/lcov.info
          fail_ci_if_error: false
          verbose: true

  # ==========================================================================
  # Build
  # ==========================================================================
  build:
    name: Build
    runs-on: ubuntu-latest
    timeout-minutes: 15
    needs: [lint, test]

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

      - name: Setup Bun
        uses: oven-sh/setup-bun@v1
        with:
          bun-version: latest

      - name: Install dependencies
        run: bun install --frozen-lockfile

      - name: Build application
        run: bun run build
        env:
          NEXT_TELEMETRY_DISABLED: 1

      - name: Upload build artifacts
        uses: actions/upload-artifact@v4
        with:
          name: build-output
          path: .next/
          retention-days: 7

  # ==========================================================================
  # Docker Build (only on main branch)
  # ==========================================================================
  docker:
    name: Docker Build
    runs-on: ubuntu-latest
    timeout-minutes: 20
    needs: [build]
    if: github.ref == 'refs/heads/main'

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

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

      - name: Build Docker image
        uses: docker/build-push-action@v5
        with:
          context: .
          push: false
          tags: localgreenchain:${{ github.sha }}
          cache-from: type=gha
          cache-to: type=gha,mode=max

  # ==========================================================================
  # Security Scan
  # ==========================================================================
  security:
    name: Security Scan
    runs-on: ubuntu-latest
    timeout-minutes: 10
    needs: [lint]

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

      - name: Setup Bun
        uses: oven-sh/setup-bun@v1
        with:
          bun-version: latest

      - name: Install dependencies
        run: bun install --frozen-lockfile

      - name: Run security audit
        run: bun pm audit || true
        continue-on-error: true

      - name: Run Trivy vulnerability scanner
        uses: aquasecurity/trivy-action@master
        with:
          scan-type: 'fs'
          scan-ref: '.'
          severity: 'CRITICAL,HIGH'
          exit-code: '0'