name: PR Checks

on:
  pull_request:
    branches:
      - main

concurrency:
  group: pr-checks-${{ github.event.pull_request.number || github.ref }}
  cancel-in-progress: true

jobs:
  changes:
    name: PR Change Classification
    runs-on: ubuntu-latest
    outputs:
      pack_all: ${{ steps.changed-files.outputs.pack_all }}
      pack_packages: ${{ steps.changed-files.outputs.pack_packages }}
      run_agent_session_replay: ${{ steps.changed-files.outputs.run_agent_session_replay }}
      run_boundaries: ${{ steps.changed-files.outputs.run_boundaries }}
      run_contracts: ${{ steps.changed-files.outputs.run_contracts }}
      run_generated: ${{ steps.changed-files.outputs.run_generated }}
      run_go: ${{ steps.changed-files.outputs.run_go }}
      run_pack: ${{ steps.changed-files.outputs.run_pack }}
      run_ts: ${{ steps.changed-files.outputs.run_ts }}
      run_ts_tests: ${{ steps.changed-files.outputs.run_ts_tests }}
      test_all: ${{ steps.changed-files.outputs.test_all }}
      test_packages: ${{ steps.changed-files.outputs.test_packages }}
      test_shards: ${{ steps.changed-files.outputs.test_shards }}

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Classify changed files
        id: changed-files
        env:
          BASE_SHA: ${{ github.event.pull_request.base.sha }}
          HEAD_SHA: ${{ github.event.pull_request.head.sha }}
        run: >-
          node ./tools/scripts/change-classification.mjs
          --base "${BASE_SHA}"
          --head "${HEAD_SHA}"
          --github-output "${GITHUB_OUTPUT}"

  tooling-consistency:
    name: Tooling Consistency
    needs: changes
    if: always()
    runs-on: ubuntu-latest

    steps:
      - name: Require change classification
        env:
          CHANGES_RESULT: ${{ needs.changes.result }}
        run: test "${CHANGES_RESULT}" = "success"

      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Set up Node.js
        uses: actions/setup-node@v4
        with:
          node-version-file: .node-version

      - name: Check changed-file whitespace
        env:
          BASE_SHA: ${{ github.event.pull_request.base.sha }}
          HEAD_SHA: ${{ github.event.pull_request.head.sha }}
        run: git diff --check "${BASE_SHA}...${HEAD_SHA}"

      - name: Check repository naming policy
        run: node ./tools/scripts/check-tutti-names.mjs

      - name: Set up pnpm
        if: >-
          needs.changes.outputs.run_contracts == 'true' ||
          needs.changes.outputs.run_generated == 'true' ||
          needs.changes.outputs.run_boundaries == 'true'
        uses: pnpm/action-setup@v4

      - name: Set up Go
        if: >-
          needs.changes.outputs.run_generated == 'true' ||
          needs.changes.outputs.run_boundaries == 'true'
        uses: actions/setup-go@v5
        with:
          go-version: "1.24.5"
          cache-dependency-path: |
            go.work
            go.work.sum
            packages/agent/daemon/go.sum
            services/tuttid/go.sum

      - name: Install workspace dependencies
        if: >-
          needs.changes.outputs.run_contracts == 'true' ||
          needs.changes.outputs.run_generated == 'true' ||
          needs.changes.outputs.run_boundaries == 'true'
        run: pnpm install --frozen-lockfile

      - name: Run repository contract tests
        if: needs.changes.outputs.run_contracts == 'true'
        env:
          BASE_SHA: ${{ github.event.pull_request.base.sha }}
          HEAD_SHA: ${{ github.event.pull_request.head.sha }}
        run: >-
          node ./tools/scripts/run-repository-checks.mjs
          --group contracts --base "${BASE_SHA}" --head "${HEAD_SHA}"

      - name: Run generated contract checks
        if: needs.changes.outputs.run_generated == 'true'
        env:
          BASE_SHA: ${{ github.event.pull_request.base.sha }}
          HEAD_SHA: ${{ github.event.pull_request.head.sha }}
        run: >-
          node ./tools/scripts/run-repository-checks.mjs
          --group generated --base "${BASE_SHA}" --head "${HEAD_SHA}"

      - name: Run repository boundary checks
        if: needs.changes.outputs.run_boundaries == 'true'
        env:
          BASE_SHA: ${{ github.event.pull_request.base.sha }}
          HEAD_SHA: ${{ github.event.pull_request.head.sha }}
        run: >-
          node ./tools/scripts/run-repository-checks.mjs
          --group boundaries --base "${BASE_SHA}" --head "${HEAD_SHA}"

  ts-lint:
    name: TypeScript Lint
    needs: changes
    if: needs.changes.outputs.run_ts == 'true'
    runs-on: ubuntu-latest

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

      - name: Set up pnpm
        uses: pnpm/action-setup@v4

      - name: Set up Node.js
        uses: actions/setup-node@v4
        with:
          node-version-file: .node-version
          cache: pnpm
          cache-dependency-path: pnpm-lock.yaml

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

      - name: Run TypeScript lint
        env:
          NODE_OPTIONS: --max-old-space-size=4096
        run: pnpm lint:ts

  typecheck:
    name: Typecheck
    needs: changes
    if: needs.changes.outputs.run_ts == 'true'
    runs-on: ubuntu-latest

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

      - name: Set up pnpm
        uses: pnpm/action-setup@v4

      - name: Set up Node.js
        uses: actions/setup-node@v4
        with:
          node-version-file: .node-version
          cache: pnpm
          cache-dependency-path: pnpm-lock.yaml

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

      - name: Run workspace typecheck
        run: pnpm typecheck

  ts-test-shards:
    name: TypeScript Test Shard ${{ matrix.shard }}
    needs: changes
    if: needs.changes.outputs.run_ts_tests == 'true'
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        shard: ${{ fromJSON(needs.changes.outputs.test_shards) }}

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

      - name: Set up pnpm
        uses: pnpm/action-setup@v4

      - name: Set up Node.js
        uses: actions/setup-node@v4
        with:
          node-version-file: .node-version
          cache: pnpm
          cache-dependency-path: pnpm-lock.yaml

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

      - name: Run TypeScript tests
        env:
          TEST_ALL: ${{ needs.changes.outputs.test_all }}
          TEST_PACKAGES: ${{ needs.changes.outputs.test_packages }}
          TEST_SHARD: ${{ matrix.shard }}
        run: >-
          if [ "${TEST_ALL}" = "true" ]; then
            pnpm test:ts -- --shard "${TEST_SHARD}";
          else
            pnpm test:ts -- --packages-json "${TEST_PACKAGES}" --shard "${TEST_SHARD}";
          fi

  ts-tests:
    name: TypeScript Tests
    needs:
      - changes
      - ts-test-shards
    if: always()
    runs-on: ubuntu-latest

    steps:
      - name: Require change classification
        env:
          CHANGES_RESULT: ${{ needs.changes.result }}
        run: test "${CHANGES_RESULT}" = "success"

      - name: Require selected test shards
        if: needs.changes.outputs.run_ts_tests == 'true'
        env:
          SHARDS_RESULT: ${{ needs.ts-test-shards.result }}
        run: test "${SHARDS_RESULT}" = "success"

      - name: No workspace package tests selected
        if: needs.changes.outputs.run_ts_tests != 'true'
        run: echo "No workspace package tests selected"

  npm-package-packs:
    name: npm Package Pack Check
    needs: changes
    if: needs.changes.outputs.run_pack == 'true'
    runs-on: ubuntu-latest

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

      - name: Set up pnpm
        uses: pnpm/action-setup@v4

      - name: Set up Node.js
        uses: actions/setup-node@v4
        with:
          node-version-file: .node-version
          cache: pnpm
          cache-dependency-path: pnpm-lock.yaml

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

      - name: Validate package tarballs
        env:
          PACK_ALL: ${{ needs.changes.outputs.pack_all }}
          PACK_PACKAGES: ${{ needs.changes.outputs.pack_packages }}
        run: >-
          if [ "${PACK_ALL}" = "true" ]; then
            pnpm release:pack:check;
          else
            pnpm release:pack:check -- --packages-json "${PACK_PACKAGES}";
          fi

  go-tests:
    name: Go Tests
    needs: changes
    if: needs.changes.outputs.run_go == 'true'
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Set up pnpm
        uses: pnpm/action-setup@v4

      - name: Set up Node.js
        uses: actions/setup-node@v4
        with:
          node-version-file: .node-version
          cache: pnpm
          cache-dependency-path: pnpm-lock.yaml

      - name: Set up Go
        uses: actions/setup-go@v5
        with:
          go-version: "1.24.5"
          cache-dependency-path: |
            go.work
            go.work.sum
            **/go.mod
            **/go.sum

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

      - name: Run changed Go tests
        env:
          BASE_SHA: ${{ github.event.pull_request.base.sha }}
          HEAD_SHA: ${{ github.event.pull_request.head.sha }}
        run: >-
          node ./tools/scripts/run-changed-go-validation.mjs
          --base "${BASE_SHA}"
          --head "${HEAD_SHA}"
          --kind test
          --tail-lines 400

  go-lint:
    name: Go Lint
    needs: changes
    if: needs.changes.outputs.run_go == 'true'
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Set up pnpm
        uses: pnpm/action-setup@v4

      - name: Set up Node.js
        uses: actions/setup-node@v4
        with:
          node-version-file: .node-version
          cache: pnpm
          cache-dependency-path: pnpm-lock.yaml

      - name: Set up Go
        uses: actions/setup-go@v5
        with:
          go-version: "1.24.5"
          cache-dependency-path: |
            go.work
            go.work.sum
            **/go.mod
            **/go.sum

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

      - name: Install pinned golangci-lint
        run: |
          version=$(tr -d '\n' < services/tuttid/.golangci-lint-version)
          install_dir="${RUNNER_TEMP}/golangci-lint/bin"
          installer="${RUNNER_TEMP}/golangci-lint-install.sh"
          mkdir -p "${install_dir}"
          curl \
            --retry 5 \
            --retry-all-errors \
            --retry-delay 2 \
            --silent \
            --show-error \
            --fail \
            --location \
            --output "${installer}" \
            https://golangci-lint.run/install.sh
          sh "${installer}" -b "${install_dir}" "${version}"
          test -x "${install_dir}/golangci-lint"
          echo "${install_dir}" >> "${GITHUB_PATH}"

      - name: Run changed Go lint
        env:
          BASE_SHA: ${{ github.event.pull_request.base.sha }}
          HEAD_SHA: ${{ github.event.pull_request.head.sha }}
        run: >-
          node ./tools/scripts/run-changed-go-validation.mjs
          --base "${BASE_SHA}"
          --head "${HEAD_SHA}"
          --kind lint
          --tail-lines 400