.github/workflows/visual-regression-dispatch.yaml

name: Visual Regression Dispatch

# Dispatches visual regression processing to ci-privileged after CI completes.
# Runs in the context of the base repo (not the fork) so it has access to secrets,
# making it work for external contributor PRs.
#
# All paths trigger the same ci-privileged workflow (post-visual-regression-comment.yaml)
# via workflow_dispatch, passing the project as an input. ci-privileged routes to the
# correct Argos project based on it.

on:
  workflow_run:
    workflows: ['CI UI', 'CI Front']
    types: [completed]

permissions:
  actions: read
  contents: read
  pull-requests: read

jobs:
  resolve-context:
    if: github.event.workflow_run.conclusion == 'success'
    runs-on: ubuntu-latest
    timeout-minutes: 5
    outputs:
      workflow_name: ${{ steps.context.outputs.workflow_name }}
      project: ${{ steps.context.outputs.project }}
      artifact_name: ${{ steps.context.outputs.artifact_name }}
      has_artifact: ${{ steps.check-artifact.outputs.exists }}
      is_pr: ${{ steps.pr-info.outputs.has_pr }}
      pr_number: ${{ steps.pr-info.outputs.pr_number }}
      merge_base_sha: ${{ steps.merge-base.outputs.sha }}
      parent_commits: ${{ steps.merge-base.outputs.parent_commits }}
    steps:
      - name: Resolve workflow context
        id: context
        uses: actions/github-script@f28e40c7f34bde8b3046d885e986cb6290c5673b # v7.1.0
        with:
          script: |
            const name = context.payload.workflow_run.name;
            const projectByWorkflow = {
              'CI UI': 'twenty-ui',
              'CI Front': 'twenty-front',
            };
            const project = projectByWorkflow[name] ?? 'twenty-front';
            const artifactName = `argos-screenshots-${project}`;
            core.setOutput('workflow_name', name);
            core.setOutput('project', project);
            core.setOutput('artifact_name', artifactName);
            core.info(`Workflow: ${name}, project: ${project}, artifact: ${artifactName}`);

      - name: Check if screenshots artifact exists
        id: check-artifact
        uses: actions/github-script@f28e40c7f34bde8b3046d885e986cb6290c5673b # v7.1.0
        with:
          script: |
            const artifactName = '${{ steps.context.outputs.artifact_name }}';
            const runId = context.payload.workflow_run.id;

            const { data: artifacts } = await github.rest.actions.listWorkflowRunArtifacts({
              owner: context.repo.owner,
              repo: context.repo.repo,
              run_id: runId,
            });

            const found = artifacts.artifacts.some(a => a.name === artifactName);
            core.setOutput('exists', found ? 'true' : 'false');

            if (!found) {
              core.info(`Artifact "${artifactName}" not found in run ${runId} — skipping`);
            }

      - name: Get PR number
        if: >-
          steps.check-artifact.outputs.exists == 'true' &&
          github.event.workflow_run.event == 'pull_request'
        id: pr-info
        uses: actions/github-script@f28e40c7f34bde8b3046d885e986cb6290c5673b # v7.1.0
        with:
          script: |
            const headBranch = context.payload.workflow_run.head_branch;
            const headRepo = context.payload.workflow_run.head_repository;

            let pullRequests = context.payload.workflow_run.pull_requests;
            let prNumber;

            if (pullRequests && pullRequests.length > 0) {
              prNumber = pullRequests[0].number;
            } else {
              const headLabel = `${headRepo.owner.login}:${headBranch}`;
              core.info(`Searching for PR by head label: ${headLabel}`);

              const { data: prs } = await github.rest.pulls.list({
                owner: context.repo.owner,
                repo: context.repo.repo,
                state: 'open',
                head: headLabel,
                per_page: 1,
              });

              if (prs.length > 0) {
                prNumber = prs[0].number;
              }
            }

            if (!prNumber) {
              core.info('No pull request found — skipping');
              core.setOutput('has_pr', 'false');
              return;
            }

            core.setOutput('pr_number', prNumber);
            core.setOutput('has_pr', 'true');
            core.info(`PR #${prNumber}`);

      - name: Compute merge-base for Argos reference
        if: steps.check-artifact.outputs.exists == 'true' && steps.pr-info.outputs.has_pr == 'true'
        id: merge-base
        uses: actions/github-script@f28e40c7f34bde8b3046d885e986cb6290c5673b # v7.1.0
        with:
          script: |
            const headSha = context.payload.workflow_run.head_sha;

            try {
              const { data: comparison } = await github.rest.repos.compareCommitsWithBasehead({
                owner: context.repo.owner,
                repo: context.repo.repo,
                basehead: `main...${headSha}`,
              });

              const mergeBaseSha = comparison.merge_base_commit?.sha;

              if (mergeBaseSha) {
                core.setOutput('sha', mergeBaseSha);
                core.info(`Merge base: ${mergeBaseSha}`);

                const { data: commits } = await github.rest.repos.listCommits({
                  owner: context.repo.owner,
                  repo: context.repo.repo,
                  sha: mergeBaseSha,
                  per_page: 100,
                });
                const parentCommits = commits.map((commit) => commit.sha);
                core.setOutput('parent_commits', parentCommits.join(' '));
                core.info(`Parent commits: ${parentCommits.length}`);
              } else {
                core.info('Could not determine merge base — will skip reference_commit');
                core.setOutput('sha', '');
                core.setOutput('parent_commits', '');
              }
            } catch (error) {
              core.warning(`Failed to compute merge base: ${error instanceof Error ? error.message : String(error)}`);
              core.setOutput('sha', '');
              core.setOutput('parent_commits', '');
            }

  # ── Dispatch: pixel diff for the triggering workflow's project (PRs + main) ──
  dispatch-pixel-diff:
    needs: resolve-context
    if: needs.resolve-context.outputs.has_artifact == 'true'
    runs-on: ubuntu-latest
    timeout-minutes: 5
    steps:
      - name: Mint ci-privileged dispatch token
        id: app-token
        uses: actions/create-github-app-token@bcd2ba49218906704ab6c1aa796996da409d3eb1 # v3.2.0
        with:
          client-id: ${{ vars.TWENTY_WORKFLOW_DISPATCHER_CLIENT_ID }}
          private-key: ${{ secrets.TWENTY_WORKFLOW_DISPATCHER_PRIVATE_KEY }}
          owner: twentyhq
          repositories: ci-privileged
          permission-actions: write

      - name: Dispatch to ci-privileged
        env:
          GH_TOKEN: ${{ steps.app-token.outputs.token }}
          PROJECT: ${{ needs.resolve-context.outputs.project }}
          PR_NUMBER: ${{ needs.resolve-context.outputs.pr_number }}
          WORKFLOW_RUN_ID: ${{ github.event.workflow_run.id }}
          REPOSITORY: ${{ github.repository }}
          BRANCH: ${{ github.event.workflow_run.head_branch }}
          COMMIT: ${{ github.event.workflow_run.head_sha }}
          REFERENCE_COMMIT: ${{ needs.resolve-context.outputs.merge_base_sha }}
          PARENT_COMMITS: ${{ needs.resolve-context.outputs.parent_commits }}
          ARTIFACT_NAME: ${{ needs.resolve-context.outputs.artifact_name }}
        run: |
          ARGS=(
            -f project="$PROJECT"
            -f artifact_name="$ARTIFACT_NAME"
            -f run_id="$WORKFLOW_RUN_ID"
            -f repo="$REPOSITORY"
            -f branch="$BRANCH"
            -f commit="$COMMIT"
          )

          if [ -n "$PR_NUMBER" ]; then
            ARGS+=(-f pr_number="$PR_NUMBER")
          fi
          if [ -n "$REFERENCE_COMMIT" ]; then
            ARGS+=(-f reference_commit="$REFERENCE_COMMIT")
          fi
          if [ -n "$PARENT_COMMITS" ]; then
            ARGS+=(-f parent_commits="$PARENT_COMMITS")
          fi

          gh workflow run post-visual-regression-comment.yaml --repo twentyhq/ci-privileged --ref main "${ARGS[@]}"