name: CI

on:
  push:
    branches: [main, dev, uat]
  pull_request:
    branches: [main, dev, uat]

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

permissions:
  contents: write
  packages: write
  security-events: write

env:
  REGISTRY: git.farh.net
  IMAGE_NAME: cartsnitch/app

jobs:
  lint:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020
        with:
          node-version: "20"
          cache: npm
      - run: npm ci
      - name: ESLint
        run: npx eslint .
      - name: Type check
        run: npx tsc --noEmit

  test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020
        with:
          node-version: "20"
          cache: npm
      - run: npm ci
      - name: Run tests
        run: npx vitest run

  audit:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020
        with:
          node-version: "20"
          cache: npm
      - run: npm ci
      - name: Check for vulnerabilities
        run: npm audit --audit-level=high

  e2e:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020
        with:
          node-version: "20"
          cache: npm
      - run: npm ci
      - run: npx playwright install --with-deps chromium
      - run: npx playwright test

  build-and-push:
    runs-on: ubuntu-latest
    if: github.event_name == 'push'
    needs: [lint, test, e2e]
    outputs:
      calver_tag: ${{ steps.calver.outputs.version }}
      sha_tag: sha-${{ github.sha }}
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Generate CalVer tag
        id: calver
        if: github.event_name == 'push' && github.ref == 'refs/heads/main'
        run: |
          DATE_TAG=$(date -u +%Y.%m.%d)
          EXISTING=$(git tag -l "v${DATE_TAG}*" | sort -V | tail -1)
          if [ -z "$EXISTING" ]; then
            VERSION="$DATE_TAG"
          elif [ "$EXISTING" = "v${DATE_TAG}" ]; then
            VERSION="${DATE_TAG}.2"
          else
            BUILD_NUM=$(echo "$EXISTING" | sed "s/v${DATE_TAG}\.//")
            VERSION="${DATE_TAG}.$((BUILD_NUM + 1))"
          fi
          echo "version=$VERSION" >> "$GITHUB_OUTPUT"
          echo "CalVer tag: $VERSION"

      - name: Log in to Gitea Container Registry
        if: github.event_name == 'push'
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.REGISTRY_TOKEN }}

      - name: Extract metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            type=sha,prefix=sha-,format=long
            type=raw,value=${{ steps.calver.outputs.version }},enable=${{ github.ref == 'refs/heads/main' }}
            type=raw,value=latest,enable=${{ github.ref == 'refs/heads/main' }}

      - name: Build and push Docker image
        uses: docker/build-push-action@v6
        with:
          context: .
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          target: prod
          cache-from: type=gha
          cache-to: type=gha,mode=max

      - name: Create git tag
        if: github.event_name == 'push' && github.ref == 'refs/heads/main'
        run: |
          git tag "v${{ steps.calver.outputs.version }}"
          git push origin "v${{ steps.calver.outputs.version }}"

  deploy-dev:
    runs-on: ubuntu-latest
    needs: [build-and-push]
    if: always() && !cancelled() && github.event_name == 'push' && (github.ref == 'refs/heads/dev' || github.ref == 'refs/heads/main')
    steps:
      - name: Checkout infra repo
        uses: actions/checkout@v4
        with:
          repository: cartsnitch/infra
          token: ${{ secrets.GITEA_DEPLOY_KEY }}
          ref: main
          path: infra

      - name: Install kubectl
        uses: azure/setup-kubectl@v4

      - name: Install kustomize
        uses: imranismail/setup-kustomize@v2

      - name: Determine image tag for frontend
        id: frontend_tag
        run: |
          if [ "${{ github.ref }}" == "refs/heads/main" ]; then
            echo "tag=${{ needs.build-and-push.outputs.calver_tag }}" >> "$GITHUB_OUTPUT"
          else
            echo "tag=${{ needs.build-and-push.outputs.sha_tag }}" >> "$GITHUB_OUTPUT"
          fi

      - name: Update frontend image tag
        if: needs.build-and-push.result == 'success'
        run: |
          cd infra/apps/overlays/dev
          kustomize edit set image git.farh.net/cartsnitch/app:${{ steps.frontend_tag.outputs.tag }}

      - name: Commit and push to infra
        run: |
          cd infra
          git config user.name "cartsnitch-ci[bot]"
          git config user.email "cartsnitch-ci[bot]@users.noreply.github.com"
          git add apps/overlays/dev/kustomization.yaml
          git commit -m "ci(dev): update cartsnitch/app image"
          git pull --rebase origin main
          git push origin main

  deploy-uat:
    runs-on: ubuntu-latest
    needs: [build-and-push]
    if: always() && !cancelled() && github.event_name == 'push' && (github.ref == 'refs/heads/uat' || github.ref == 'refs/heads/main')
    steps:
      - name: Checkout infra repo
        uses: actions/checkout@v4
        with:
          repository: cartsnitch/infra
          token: ${{ secrets.GITEA_DEPLOY_KEY }}
          ref: main
          path: infra

      - name: Install kubectl
        uses: azure/setup-kubectl@v4

      - name: Install kustomize
        uses: imranismail/setup-kustomize@v2

      - name: Determine image tag for frontend
        id: frontend_tag
        run: |
          if [ "${{ github.ref }}" == "refs/heads/main" ]; then
            echo "tag=${{ needs.build-and-push.outputs.calver_tag }}" >> "$GITHUB_OUTPUT"
          else
            echo "tag=${{ needs.build-and-push.outputs.sha_tag }}" >> "$GITHUB_OUTPUT"
          fi

      - name: Update frontend image tag
        if: needs.build-and-push.result == 'success'
        run: |
          cd infra/apps/overlays/uat
          kustomize edit set image git.farh.net/cartsnitch/app:${{ steps.frontend_tag.outputs.tag }}

      - name: Commit and push to infra
        run: |
          cd infra
          git config user.name "cartsnitch-ci[bot]"
          git config user.email "cartsnitch-ci[bot]@users.noreply.github.com"
          git add apps/overlays/uat/kustomization.yaml
          git commit -m "ci(uat): update cartsnitch/app image"
          git pull --rebase origin main
          git push origin main