name: Frontend Tests

on:
  push:
    branches: [main]
    paths:
      - "apps/cli/**"
      - "apps/package.json"
      - "apps/prettier.config.mjs"
      - "apps/.prettierignore"
      - "apps/web/**"
      - "apps/packages/**"
      - "apps/pnpm-lock.yaml"
      - ".github/workflows/frontend-tests.yml"
      - "!**/*.md"
      - "!**/*.mdx"
      - "!**/*.markdown"
  pull_request:
    branches: [main]
    paths:
      - "apps/cli/**"
      - "apps/package.json"
      - "apps/prettier.config.mjs"
      - "apps/.prettierignore"
      - "apps/web/**"
      - "apps/packages/**"
      - "apps/pnpm-lock.yaml"
      - ".github/workflows/frontend-tests.yml"
      - "!**/*.md"
      - "!**/*.mdx"
      - "!**/*.markdown"

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

jobs:
  frontend:
    name: Run Frontend Lint, Tests, and Build
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: apps

    steps:
      - name: Checkout code
        uses: actions/checkout@v6
        with:
          fetch-depth: 0

      - name: Set up pnpm
        uses: pnpm/action-setup@v5
        with:
          version: "9.15.9"

      - name: Set up Node.js
        uses: actions/setup-node@v6
        with:
          node-version: "24"

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

      - name: Check formatting
        shell: bash
        run: |
          set -euo pipefail

          if [[ "${{ github.event_name }}" == "pull_request" ]]; then
            BASE_SHA="${{ github.event.pull_request.base.sha }}"
          else
            BASE_SHA="${{ github.event.before }}"
          fi

          if [[ -z "${BASE_SHA}" || "${BASE_SHA}" == "0000000000000000000000000000000000000000" ]]; then
            BASE_SHA="$(git rev-list --max-parents=0 HEAD)"
          fi

          CHANGED_FILES="$(
            git diff --name-only --diff-filter=ACMRT "${BASE_SHA}"..."${{ github.sha }}" \
            | grep -E '^apps/(web|cli|packages)/.*\.(ts|tsx|js|jsx|mjs|cjs|json|md|mdx|yml|yaml|css|scss)$' \
            || true
          )"

          if [[ -z "${CHANGED_FILES}" ]]; then
            echo "No Prettier-scoped files changed."
            exit 0
          fi

          echo "Checking Prettier on changed files:"
          echo "${CHANGED_FILES}"
          echo "${CHANGED_FILES}" \
            | sed 's#^apps/##' \
            | xargs pnpm exec prettier --check --ignore-unknown

      - name: Run lint
        run: pnpm --filter @kandev/web lint

      - name: Run tests
        run: pnpm --filter @kandev/web test

      - name: Build
        run: pnpm --filter @kandev/web build