# ⚠️ SECURITY: Do not add steps that checkout PR code or run local actions before trust-check job completes.
name: PR Update

on:
  pull_request_target:
    types: [opened, synchronize, reopened]
    branches:
      - main
      - gh-actions-test-branch

  workflow_dispatch:

permissions:
  actions: write
  contents: read

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

jobs:
  # Security gate: Check if PR is from a trusted contributor or approved via run-ci label
  # This MUST run before any job that checks out PR code and executes it with secrets
  trust-check:
    name: Trust Check
    runs-on: blacksmith-2vcpu-ubuntu-2404
    permissions:
      pull-requests: read
      actions: read
      issues: read
    outputs:
      is-trusted: ${{ steps.check-trust.outputs.is-trusted }}
    steps:
      - name: Check if PR is trusted
        id: check-trust
        uses: actions/github-script@v7
        with:
          script: |
            const trustedAssociations = ['OWNER', 'MEMBER', 'COLLABORATOR'];

            if (!context.payload.pull_request) {
              if (context.eventName === 'workflow_dispatch') {
                console.log('workflow_dispatch event - assuming trusted (manual trigger)');
                core.setOutput('is-trusted', true);
                return;
              }
              console.log('No pull request context found');
              core.setOutput('is-trusted', false);
              return;
            }

            const owner = context.repo.owner;
            const repo = context.repo.repo;

            // Fetch fresh PR data - payload labels may be stale on re-runs
            const { data: pr } = await github.rest.pulls.get({
              owner,
              repo,
              pull_number: context.payload.pull_request.number,
            });

            const prNumber = pr.number;
            const headSha = pr.head.sha;

            async function hasWriteAccess(username) {
              try {
                const { data: permission } = await github.rest.repos.getCollaboratorPermissionLevel({
                  owner,
                  repo,
                  username,
                });
                return ['admin', 'maintain', 'write'].includes(permission.permission);
              } catch (e) {
                console.log(`Permission check failed for ${username}: ${e.message}`);
                return false;
              }
            }

            console.log(`PR #${prNumber} by ${pr.user.login} (${pr.author_association})`);

            // Check 1: Is the author a trusted contributor?
            if (trustedAssociations.includes(pr.author_association)) {
              console.log(`Author has trusted association: ${pr.author_association}`);
              core.setOutput('is-trusted', true);
              return;
            }

            // Check 2: Verify write access via API (author_association can be unreliable)
            if (await hasWriteAccess(pr.user.login)) {
              console.log(`Author has write access`);
              core.setOutput('is-trusted', true);
              return;
            }

            // Check 3: Was 'run-ci' label added AFTER this SHA was pushed by someone with write access?
            // This enables re-runs triggered by the run-ci.yml workflow
            // NOTE: We use workflow run created_at instead of commit timestamp because
            // git commit timestamps can be arbitrarily backdated by attackers
            if (pr.labels?.some(l => l.name === 'run-ci')) {
              // Skip stale check if this is a re-run (run_attempt > 1)
              // Re-runs are explicitly triggered by maintainers
              const runAttempt = parseInt(process.env.GITHUB_RUN_ATTEMPT || '1', 10);
              if (runAttempt > 1) {
                console.log(`Re-run detected (attempt ${runAttempt}), trusting existing 'run-ci' label`);
                core.setOutput('is-trusted', true);
                return;
              }

              const events = await github.paginate(github.rest.issues.listEvents, {
                owner,
                repo,
                issue_number: prNumber,
                per_page: 100,
              });

              const labelEvent = events
                .filter(e => e.event === 'labeled' && e.label?.name === 'run-ci')
                .sort((a, b) => new Date(b.created_at) - new Date(a.created_at))[0];

              if (labelEvent) {
                // Get workflow runs to find when this SHA was first pushed
                const runs = await github.paginate(github.rest.actions.listWorkflowRuns, {
                  owner,
                  repo,
                  workflow_id: 'pr.yml',
                  head_sha: headSha,
                  per_page: 100,
                });

                // Filter runs to this PR (in case same SHA exists in multiple PRs)
                const matchingRuns = runs.filter(run =>
                  !run.pull_requests?.length || run.pull_requests.some(p => p.number === prNumber)
                );

                if (matchingRuns.length > 0) {
                  const labelTime = new Date(labelEvent.created_at);
                  // Use the oldest run's created_at as the push time
                  const originalRun = matchingRuns[matchingRuns.length - 1];
                  const pushTime = new Date(originalRun.created_at);

                  if (labelTime > pushTime) {
                    const adder = labelEvent.actor.login;
                    if (await hasWriteAccess(adder)) {
                      console.log(`Approved via 'run-ci' label added by ${adder} after push (label: ${labelTime.toISOString()}, push: ${pushTime.toISOString()})`);
                      core.setOutput('is-trusted', true);
                      return;
                    }
                    console.log(`Label 'run-ci' added by ${adder} (no write access)`);
                  } else {
                    console.log(`Label 'run-ci' is stale (label: ${labelTime.toISOString()}, push: ${pushTime.toISOString()})`);
                  }
                } else {
                  console.log('No workflow runs found for this SHA - cannot validate label timing');
                }
              }
            }

            console.log('External contribution requires "run-ci" label from a maintainer');
            core.setOutput('is-trusted', false);

  prepare:
    name: Prepare
    needs: [trust-check]
    if: needs.trust-check.outputs.is-trusted == 'true'
    runs-on: blacksmith-2vcpu-ubuntu-2404
    permissions:
      pull-requests: read
    outputs:
      has-files-requiring-all-checks: ${{ steps.filter-exclusions.outputs.has-files-requiring-all-checks }}
      has-companion: ${{ steps.filter-inclusions.outputs.has-companion }}
      has-api-v2-changes: ${{ steps.filter-inclusions.outputs.has-api-v2-changes }}
      has-prisma-changes: ${{ steps.filter-inclusions.outputs.has-prisma-changes }}
      commit-sha: ${{ steps.get_sha.outputs.commit-sha }}
      run-e2e: ${{ steps.check-if-pr-has-label.outputs.run-e2e == 'true' }}
      db-cache-hit: ${{ steps.cache-db-check.outputs.cache-hit }}
    steps:
      - uses: actions/checkout@v4
        with:
          sparse-checkout: .github
      - uses: ./.github/actions/cache-checkout
      - name: Generate DB cache key
        id: cache-db-key
        uses: ./.github/actions/cache-db-key
      - name: Check DB cache (lookup-only)
        id: cache-db-check
        uses: actions/cache/restore@v4
        with:
          path: backups/backup.sql
          key: ${{ steps.cache-db-key.outputs.key }}
          lookup-only: true
      - name: Check for files requiring all checks (with exclusions)
        uses: dorny/paths-filter@v3
        id: filter-exclusions
        with:
          predicate-quantifier: "every"
          filters: |
            has-files-requiring-all-checks:
              - '**'
              - '!companion/**'
              - '!.vscode/**'
              - '!**/*.md'
              - '!**/*.mdx'
              - '!.github/CODEOWNERS'
              - '!docs/**'
              - '!help/**'
              - '!apps/web/public/static/locales/**/common.json'
              - '!i18n.lock'
      - name: Check for specific path changes
        uses: dorny/paths-filter@v3
        id: filter-inclusions
        with:
          filters: |
            has-companion:
              - "companion/**"
            has-api-v2-changes:
              - "apps/api/v2/**"
              - "packages/platform-constants/**"
              - "packages/platform-enums/**"
              - "packages/platform-utils/**"
              - "packages/platform-types/**"
              - "packages/platform-libraries/**"
              - "packages/trpc/**"
              - "packages/prisma/schema.prisma"
              - "docs/api-reference/v2/**"
            has-prisma-changes:
              - "packages/prisma/schema.prisma"
              - "packages/prisma/migrations/**"
      - name: Get Latest Commit SHA
        id: get_sha
        run: |
          echo "commit-sha=$(git rev-parse HEAD)" >> $GITHUB_OUTPUT
      - name: Check if PR exists with ready-for-e2e label for this SHA
        id: check-if-pr-has-label
        uses: actions/github-script@v7
        with:
          script: |
            let labels = [];
            let prNumber = null;

            if (context.payload.pull_request) {
              prNumber = context.payload.pull_request.number;
            } else {
              try {
                const sha = '${{ steps.get_sha.outputs.commit-sha }}';
                console.log('sha', sha);
                const { data: prs } = await github.rest.repos.listPullRequestsAssociatedWithCommit({
                  owner: context.repo.owner,
                  repo: context.repo.repo,
                  commit_sha: sha
                });

                if (prs.length === 0) {
                  core.setOutput('run-e2e', false);
                  console.log(`No pull requests found for commit SHA ${sha}`);
                  return;
                }

                prNumber = prs[0].number;
              }
              catch (e) {
                core.setOutput('run-e2e', false);
                console.log(e);
                return;
              }
            }

            // Always fetch fresh PR data to get current labels
            // This avoids stale label data from event payloads
            try {
              const { data: pr } = await github.rest.pulls.get({
                owner: context.repo.owner,
                repo: context.repo.repo,
                pull_number: prNumber
              });

              console.log(`PR number: ${pr.number}`);
              console.log(`PR title: ${pr.title}`);
              console.log(`PR state: ${pr.state}`);
              console.log(`PR URL: ${pr.html_url}`);

              labels = pr.labels;
            }
            catch (e) {
              core.setOutput('run-e2e', false);
              console.log(e);
              return;
            }

            const labelFound = labels.map(l => l.name).includes('ready-for-e2e');
            console.log('Found the label?', labelFound);
            core.setOutput('run-e2e', labelFound);
      - uses: ./.github/actions/yarn-install
        if: ${{ steps.filter-exclusions.outputs.has-files-requiring-all-checks == 'true' }}
        with:
          skip-install-if-cache-hit: "true"
      - uses: ./.github/actions/yarn-playwright-install
        if: ${{ steps.filter-exclusions.outputs.has-files-requiring-all-checks == 'true' }}
        with:
          skip-install-if-cache-hit: "true"

  type-check:
    name: Type Checks
    needs: [prepare]
    if: ${{ needs.prepare.outputs.has-files-requiring-all-checks == 'true' }}
    uses: ./.github/workflows/check-types.yml
    secrets: inherit

  lint:
    name: Linters
    needs: [prepare]
    if: ${{ needs.prepare.outputs.has-files-requiring-all-checks == 'true' }}
    uses: ./.github/workflows/lint.yml
    secrets: inherit

  unit-test:
    name: Tests
    needs: [prepare]
    if: ${{ needs.prepare.outputs.has-files-requiring-all-checks == 'true' }}
    uses: ./.github/workflows/unit-tests.yml
    secrets: inherit

  api-v2-unit-test:
    name: Tests
    needs: [prepare]
    if: ${{ needs.prepare.outputs.has-files-requiring-all-checks == 'true' }}
    uses: ./.github/workflows/api-v2-unit-tests.yml
    secrets: inherit

  check-prisma-migrations:
    name: Check Prisma Migrations
    needs: [prepare]
    if: ${{ needs.prepare.outputs.has-prisma-changes == 'true' }}
    uses: ./.github/workflows/check-prisma-migrations.yml
    secrets: inherit

  setup-db:
    name: Setup Database
    needs: [prepare]
    if: ${{ needs.prepare.outputs.run-e2e == 'true' && needs.prepare.outputs.has-files-requiring-all-checks == 'true' }}
    uses: ./.github/workflows/setup-db.yml
    with:
      DB_CACHE_HIT: ${{ needs.prepare.outputs.db-cache-hit }}
    secrets: inherit

  build-api-v1:
    name: Production builds
    needs: [prepare, setup-db]
    if: ${{ needs.prepare.outputs.run-e2e == 'true' && needs.prepare.outputs.has-files-requiring-all-checks == 'true' }}
    uses: ./.github/workflows/api-v1-production-build.yml
    secrets: inherit

  build-api-v2:
    name: Production builds
    needs: [prepare]
    if: ${{ needs.prepare.outputs.run-e2e == 'true' && needs.prepare.outputs.has-files-requiring-all-checks == 'true' }}
    uses: ./.github/workflows/api-v2-production-build.yml
    secrets: inherit

  build-atoms:
    name: Production builds
    needs: [prepare]
    if: ${{ needs.prepare.outputs.run-e2e == 'true' && needs.prepare.outputs.has-files-requiring-all-checks == 'true' }}
    uses: ./.github/workflows/atoms-production-build.yml
    secrets: inherit

  build-docs:
    name: Production builds
    needs: [prepare]
    if: ${{ needs.prepare.outputs.run-e2e == 'true' && needs.prepare.outputs.has-files-requiring-all-checks == 'true' }}
    uses: ./.github/workflows/docs-build.yml
    secrets: inherit

  build-companion:
    name: Companion builds
    needs: [prepare]
    if: needs.prepare.outputs.has-companion == 'true'
    uses: ./.github/workflows/companion-build.yml
    secrets: inherit

  typecheck-companion:
    name: Type Checks
    needs: [prepare]
    if: needs.prepare.outputs.has-companion == 'true'
    uses: ./.github/workflows/companion-typecheck.yml
    secrets: inherit

  lint-companion:
    name: Linters
    needs: [prepare]
    if: needs.prepare.outputs.has-companion == 'true'
    uses: ./.github/workflows/companion-lint.yml
    secrets: inherit

  build:
    name: Production builds
    needs: [prepare]
    if: ${{ needs.prepare.outputs.run-e2e == 'true' && needs.prepare.outputs.has-files-requiring-all-checks == 'true' }}
    uses: ./.github/workflows/production-build-without-database.yml
    secrets: inherit

  integration-test:
    name: Tests
    needs: [prepare, build, setup-db]
    if: ${{ needs.prepare.outputs.run-e2e == 'true' && needs.prepare.outputs.has-files-requiring-all-checks == 'true' }}
    uses: ./.github/workflows/integration-tests.yml
    secrets: inherit

  e2e:
    name: Tests
    needs: [prepare, build, setup-db]
    if: ${{ needs.prepare.outputs.run-e2e == 'true' && needs.prepare.outputs.has-files-requiring-all-checks == 'true' }}
    uses: ./.github/workflows/e2e.yml
    secrets: inherit

  check-api-v2-breaking-changes:
    name: Check API v2 breaking changes
    needs: [prepare]
    if: ${{ needs.prepare.outputs.run-e2e == 'true' && needs.prepare.outputs.has-api-v2-changes == 'true' }}
    uses: ./.github/workflows/check-api-v2-breaking-changes.yml
    secrets: inherit

  e2e-api-v2:
    name: Tests
    needs: [prepare, setup-db]
    if: ${{ needs.prepare.outputs.run-e2e == 'true' && needs.prepare.outputs.has-files-requiring-all-checks == 'true' }}
    uses: ./.github/workflows/e2e-api-v2.yml
    secrets: inherit

  e2e-app-store:
    name: Tests
    needs: [prepare, build, setup-db]
    if: ${{ needs.prepare.outputs.run-e2e == 'true' && needs.prepare.outputs.has-files-requiring-all-checks == 'true' }}
    uses: ./.github/workflows/e2e-app-store.yml
    secrets: inherit

  e2e-embed:
    name: Tests
    needs: [prepare, build, setup-db]
    if: ${{ needs.prepare.outputs.run-e2e == 'true' && needs.prepare.outputs.has-files-requiring-all-checks == 'true' }}
    uses: ./.github/workflows/e2e-embed.yml
    secrets: inherit

  e2e-embed-react:
    name: Tests
    needs: [prepare, build, setup-db]
    if: ${{ needs.prepare.outputs.run-e2e == 'true' && needs.prepare.outputs.has-files-requiring-all-checks == 'true' }}
    uses: ./.github/workflows/e2e-embed-react.yml
    secrets: inherit

  analyze:
    name: Analyze Build
    needs: [build]
    uses: ./.github/workflows/nextjs-bundle-analysis.yml
    secrets: inherit

  required:
    needs:
      [
        trust-check,
        prepare,
        lint,
        type-check,
        unit-test,
        api-v2-unit-test,
        check-api-v2-breaking-changes,
        check-prisma-migrations,
        integration-test,
        build,
        build-api-v1,
        build-api-v2,
        build-atoms,
        build-docs,
        build-companion,
        typecheck-companion,
        lint-companion,
        setup-db,
        e2e,
        e2e-api-v2,
        e2e-embed,
        e2e-embed-react,
        e2e-app-store,
      ]
    if: always()
    runs-on: blacksmith-2vcpu-ubuntu-2404
    steps:
      - name: Fail if trust-check did not succeed
        run: |
          echo "::error::Trust check did not complete successfully (result: ${{ needs.trust-check.result }}). Please re-run the workflow."
          exit 1
        if: needs.trust-check.result != 'success'
      - name: Fail if PR is not trusted (external contributor without run-ci label)
        run: |
          echo "::error::This PR is from an external contributor and requires the 'run-ci' label before CI can run."
          echo "A maintainer must review the code and add the 'run-ci' label to trigger CI checks."
          exit 1
        if: needs.trust-check.outputs.is-trusted != 'true' && needs.trust-check.result == 'success'
      - name: Fail if conditional jobs failed
        run: exit 1
        if: |
          (
            needs.prepare.outputs.has-files-requiring-all-checks == 'true' &&
            (
            needs.lint.result != 'success' ||
            needs.type-check.result != 'success' ||
            needs.unit-test.result != 'success' ||
            needs.api-v2-unit-test.result != 'success' ||
            (needs.prepare.outputs.has-api-v2-changes == 'true' && needs.check-api-v2-breaking-changes.result != 'success') ||
            (needs.prepare.outputs.has-prisma-changes == 'true' && needs.check-prisma-migrations.result != 'success') ||
              needs.build.result != 'success' ||
              needs.build-api-v1.result != 'success' ||
              needs.build-api-v2.result != 'success' ||
              needs.build-atoms.result != 'success' ||
              needs.build-docs.result != 'success' ||
              needs.setup-db.result != 'success' ||
              needs.integration-test.result != 'success' ||
              needs.e2e.result != 'success' ||
              needs.e2e-api-v2.result != 'success' ||
              needs.e2e-embed.result != 'success' ||
              needs.e2e-embed-react.result != 'success' ||
              needs.e2e-app-store.result != 'success'
            )
          ) ||
          (
            needs.prepare.outputs.has-companion == 'true' &&
            (
              needs.build-companion.result != 'success' ||
              needs.typecheck-companion.result != 'success' ||
              needs.lint-companion.result != 'success'
            )
          )