name: CI - Pull Request

on:
  pull_request:
    branches:
      - main
      - develop
    types: [opened, synchronize, reopened]

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

env:
  NODE_VERSION: '20'
  PNPM_VERSION: '9.15.0'
  TURBO_TOKEN: ${{ secrets.TURBO_TOKEN }}
  TURBO_TEAM: ${{ secrets.TURBO_TEAM }}

jobs:
  # Detect which projects have changed
  detect-changes:
    name: Detect Changed Projects
    runs-on: ubuntu-latest
    outputs:
      projects: ${{ steps.filter.outputs.changes }}
      has-changes: ${{ steps.filter.outputs.changes != '[]' }}
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Detect changed projects
        uses: dorny/paths-filter@v3
        id: filter
        with:
          filters: |
            chat:
              - 'apps/chat/**'
              - 'packages/**'
            manacore:
              - 'apps/manacore/**'
              - 'packages/**'
            packages:
              - 'packages/**'

  # Lint and format check
  lint-and-format:
    name: Lint & Format Check
    runs-on: ubuntu-latest
    needs: detect-changes
    if: needs.detect-changes.outputs.has-changes == 'true'
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Setup pnpm
        uses: pnpm/action-setup@v4
        with:
          version: ${{ env.PNPM_VERSION }}

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: ${{ env.NODE_VERSION }}
          cache: 'pnpm'

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

      - name: Run format check
        run: pnpm run format:check
        continue-on-error: true

      - name: Run lint
        run: pnpm run lint --filter='./apps/chat/**' --filter='./apps/manacore/**'
        continue-on-error: true

  # Type checking
  type-check:
    name: Type Check
    runs-on: ubuntu-latest
    needs: detect-changes
    if: needs.detect-changes.outputs.has-changes == 'true'
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Setup pnpm
        uses: pnpm/action-setup@v4
        with:
          version: ${{ env.PNPM_VERSION }}

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: ${{ env.NODE_VERSION }}
          cache: 'pnpm'

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

      - name: Build shared packages
        run: pnpm run build:packages

      - name: Run type check
        run: pnpm run type-check --filter='./apps/chat/**' --filter='./apps/manacore/**'
        continue-on-error: true

  # Build all affected projects
  build:
    name: Build Projects
    runs-on: ubuntu-latest
    needs: detect-changes
    if: needs.detect-changes.outputs.has-changes == 'true'
    strategy:
      matrix:
        project: ${{ fromJSON(needs.detect-changes.outputs.projects) }}
      fail-fast: false
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Setup pnpm
        uses: pnpm/action-setup@v4
        with:
          version: ${{ env.PNPM_VERSION }}

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: ${{ env.NODE_VERSION }}
          cache: 'pnpm'

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

      - name: Build shared packages
        run: pnpm run build:packages

      - name: Build project - ${{ matrix.project }}
        run: |
          if [ "${{ matrix.project }}" == "packages" ]; then
            pnpm run build --filter=@manacore/*
          else
            pnpm run build --filter='./apps/${{ matrix.project }}/**'
          fi
        continue-on-error: true

      - name: Upload build artifacts
        uses: actions/upload-artifact@v4
        with:
          name: build-${{ matrix.project }}
          path: |
            apps/${{ matrix.project }}/**/dist
            apps/${{ matrix.project }}/**/.next
            apps/${{ matrix.project }}/**/.svelte-kit
            apps/${{ matrix.project }}/**/.astro
            services/**/dist
          retention-days: 7
          if-no-files-found: ignore

  # Run tests
  test:
    name: Run Tests
    runs-on: ubuntu-latest
    needs: detect-changes
    if: needs.detect-changes.outputs.has-changes == 'true'
    strategy:
      matrix:
        project: ${{ fromJSON(needs.detect-changes.outputs.projects) }}
      fail-fast: false
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Setup pnpm
        uses: pnpm/action-setup@v4
        with:
          version: ${{ env.PNPM_VERSION }}

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: ${{ env.NODE_VERSION }}
          cache: 'pnpm'

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

      - name: Build shared packages
        run: pnpm run build:packages

      - name: Run tests - ${{ matrix.project }}
        run: |
          if [ "${{ matrix.project }}" == "packages" ]; then
            pnpm run test --filter=@manacore/* || echo "No tests found for packages"
          else
            pnpm run test --filter='./apps/${{ matrix.project }}/**' || echo "No tests found for ${{ matrix.project }}"
          fi
        continue-on-error: true

      - name: Upload test coverage
        uses: actions/upload-artifact@v4
        with:
          name: coverage-${{ matrix.project }}
          path: |
            apps/${{ matrix.project }}/**/coverage
            services/**/coverage
          retention-days: 7
          if-no-files-found: ignore

  # Docker build validation for backend services
  docker-build-check:
    name: Docker Build Check
    runs-on: ubuntu-latest
    needs: detect-changes
    if: contains(needs.detect-changes.outputs.projects, 'chat')
    strategy:
      matrix:
        service:
          - { name: 'chat-backend', path: 'apps/chat/apps/backend' }
      fail-fast: false
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

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

      - name: Check if Dockerfile exists
        id: check-dockerfile
        run: |
          if [ -f "${{ matrix.service.path }}/Dockerfile" ]; then
            echo "exists=true" >> $GITHUB_OUTPUT
          else
            echo "exists=false" >> $GITHUB_OUTPUT
          fi

      - name: Build Docker image
        if: steps.check-dockerfile.outputs.exists == 'true'
        uses: docker/build-push-action@v5
        with:
          context: .
          file: ${{ matrix.service.path }}/Dockerfile
          push: false
          tags: ${{ matrix.service.name }}:pr-${{ github.event.pull_request.number }}
          cache-from: type=gha
          cache-to: type=gha,mode=max
          build-args: |
            NODE_ENV=production

  # Security scanning
  security-scan:
    name: Security Scan
    runs-on: ubuntu-latest
    needs: detect-changes
    if: needs.detect-changes.outputs.has-changes == 'true'
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Setup pnpm
        uses: pnpm/action-setup@v4
        with:
          version: ${{ env.PNPM_VERSION }}

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: ${{ env.NODE_VERSION }}
          cache: 'pnpm'

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

      - name: Run security audit
        run: pnpm audit --audit-level=high
        continue-on-error: true

      - name: Check for outdated dependencies
        run: pnpm outdated
        continue-on-error: true

  # PR status check (required for merge)
  pr-checks-complete:
    name: All PR Checks Complete
    runs-on: ubuntu-latest
    needs: [lint-and-format, type-check, build, test, docker-build-check, security-scan]
    if: always()
    steps:
      - name: Check all jobs status
        run: |
          if [ "${{ needs.lint-and-format.result }}" == "failure" ] || \
             [ "${{ needs.type-check.result }}" == "failure" ] || \
             [ "${{ needs.build.result }}" == "failure" ]; then
            echo "One or more required checks failed"
            exit 1
          fi
          echo "All required checks passed"

      - name: PR summary
        run: |
          echo "## PR Checks Summary" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          echo "| Check | Status |" >> $GITHUB_STEP_SUMMARY
          echo "|-------|--------|" >> $GITHUB_STEP_SUMMARY
          echo "| Lint & Format | ${{ needs.lint-and-format.result }} |" >> $GITHUB_STEP_SUMMARY
          echo "| Type Check | ${{ needs.type-check.result }} |" >> $GITHUB_STEP_SUMMARY
          echo "| Build | ${{ needs.build.result }} |" >> $GITHUB_STEP_SUMMARY
          echo "| Tests | ${{ needs.test.result }} |" >> $GITHUB_STEP_SUMMARY
          echo "| Docker Build | ${{ needs.docker-build-check.result }} |" >> $GITHUB_STEP_SUMMARY
          echo "| Security Scan | ${{ needs.security-scan.result }} |" >> $GITHUB_STEP_SUMMARY