name: Tests

permissions:
  contents: read

on:
  pull_request:
    branches: [main, dev]
    paths:
      - 'server/**'
      - 'client/**'
      - 'shared/**'
      - 'nest-mcp/**'
      - '.github/workflows/test.yml'

jobs:
  i18n-parity:
    name: i18n Key Parity
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v6

      - uses: actions/setup-node@v6
        with:
          node-version: 24

      - name: Check i18n key parity
        run: node shared/scripts/i18n-parity.mjs --strict

  shared-contracts:
    name: Shared Contracts (Zod)
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v6

      - uses: actions/setup-node@v6
        with:
          node-version: 24
          cache: npm
          cache-dependency-path: package-lock.json

      - name: Install dependencies
        run: npm ci --workspace shared

      - name: Typecheck
        run: cd shared && npm run typecheck

      - name: Run tests
        run: cd shared && npm test

  nest-mcp-package:
    name: nest-mcp Package
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v6

      - uses: actions/setup-node@v6
        with:
          node-version: 24
          cache: npm
          cache-dependency-path: package-lock.json

      - name: Install dependencies
        run: npm ci --workspace nest-mcp

      - name: Ensure @swc/core's Linux binary for unplugin-swc
        # Same lockfile quirk as server-tests: the Linux native binary is
        # omitted, and nest-mcp's vitest config uses the SWC transform too.
        run: |
          SWC_VERSION=$(node -p "require('@swc/core/package.json').version")
          npm install --no-save --legacy-peer-deps "@swc/core-linux-x64-gnu@$SWC_VERSION"

      - name: Build
        run: npm run build --workspace=nest-mcp

      - name: Typecheck
        run: cd nest-mcp && npm run typecheck

      - name: Lint
        run: cd nest-mcp && npm run lint:check

      - name: Run tests
        run: cd nest-mcp && npm test

  server-tests:
    name: Server Tests
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v6

      - uses: actions/setup-node@v6
        with:
          node-version: 24
          cache: npm
          cache-dependency-path: package-lock.json

      - name: Install dependencies
        run: npm ci

      - name: Ensure @swc/core's Linux binary for unplugin-swc
        # The lockfile was generated on Windows and omits @swc/core's Linux
        # optional native binary, so npm ci/install skips it on the runner.
        # Install the matching version explicitly so the server's SWC transform
        # (server/vitest.config.ts) can load.
        run: |
          SWC_VERSION=$(node -p "require('@swc/core/package.json').version")
          npm install --no-save --legacy-peer-deps "@swc/core-linux-x64-gnu@$SWC_VERSION"

      - name: Build shared
        run: npm run build --workspace=shared

      - name: Build nest-mcp
        # Server typecheck/build resolve @trek/nest-mcp's types from its dist
        # (tests alias the package source, but tsc does not).
        run: npm run build --workspace=nest-mcp

      - name: Build server (tsc -> dist)
        run: cd server && npm run build

      - name: Smoke production require chain
        # Vitest aliases @trek/nest-mcp to its source, so only this exercises
        # what production runs: nest-mcp's built dist resolving the MCP SDK's
        # subpath exports through the tsconfig-paths/register runtime hook.
        run: cd server && node --require tsconfig-paths/register -e "require('@trek/nest-mcp')"

      - name: Typecheck
        run: cd server && npm run typecheck

      - name: Lint
        run: cd server && npm run lint:check

      - name: Run tests
        run: cd server && npm run test:coverage

      - name: Upload coverage
        if: success()
        uses: actions/upload-artifact@v6
        with:
          name: backend-coverage
          path: server/coverage/
          retention-days: 7

  client-quality:
    # Split out of client-tests: the suite takes ~11 minutes, and having the
    # gates in front of it meant a single lint finding threw away the whole test
    # signal for that run. Both jobs pay the install/build, which is cheap next
    # to running the two in series.
    name: Client Types & Lint
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v6

      - uses: actions/setup-node@v6
        with:
          node-version: 24
          cache: npm
          cache-dependency-path: package-lock.json

      - name: Install dependencies
        run: npm ci --workspace shared && npm ci --workspace client

      - name: Build shared
        run: npm run build --workspace=shared

      - name: Typecheck
        run: cd client && npm run typecheck

      - name: Lint
        run: cd client && npm run lint:check

      - name: Page pattern check
        run: cd client && npm run lint:pages

  client-tests:
    name: Client Tests
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v6

      - uses: actions/setup-node@v6
        with:
          node-version: 24
          cache: npm
          cache-dependency-path: package-lock.json

      - name: Install dependencies
        run: npm ci --workspace shared && npm ci --workspace client

      - name: Build shared
        run: npm run build --workspace=shared

      - name: Run tests
        run: cd client && npm run test:coverage

      - name: Upload coverage
        if: success()
        uses: actions/upload-artifact@v6
        with:
          name: frontend-coverage
          path: client/coverage/
          retention-days: 7