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 dispatches use the same event_type=visual-regression with project/artifact_name
# in the payload. ci-privileged routes to the correct Argos project based on these.

on:
  workflow_run:
    workflows: ['CI UI', 'CI New UI']
    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 }}
      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 }}
    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 artifactName = name === 'CI New UI'
              ? 'argos-screenshots-twenty-new-ui'
              : 'argos-screenshots-twenty-ui';
            core.setOutput('workflow_name', name);
            core.setOutput('artifact_name', artifactName);
            core.info(`Workflow: ${name}, 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}`,
              });

              if (comparison.merge_base_commit?.sha) {
                core.setOutput('sha', comparison.merge_base_commit.sha);
                core.info(`Merge base: ${comparison.merge_base_commit.sha}`);
              } else {
                core.info('Could not determine merge base — will skip reference_commit');
                core.setOutput('sha', '');
              }
            } catch (error) {
              core.warning(`Failed to compute merge base: ${error instanceof Error ? error.message : String(error)}`);
              core.setOutput('sha', '');
            }

  # ── Dispatch: twenty-ui pixel diff (CI UI, PRs + main) ──
  dispatch-twenty-ui:
    needs: resolve-context
    if: >-
      needs.resolve-context.outputs.workflow_name == 'CI UI' &&
      needs.resolve-context.outputs.has_artifact == 'true'
    runs-on: ubuntu-latest
    timeout-minutes: 5
    steps:
      - name: Dispatch to ci-privileged
        env:
          GH_TOKEN: ${{ secrets.CI_PRIVILEGED_DISPATCH_TOKEN }}
          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 }}
          ARTIFACT_NAME: ${{ needs.resolve-context.outputs.artifact_name }}
        run: |
          ARGS=(
            --method POST
            -f event_type=visual-regression
            -f "client_payload[project]=twenty-ui"
            -f "client_payload[artifact_name]=$ARTIFACT_NAME"
            -f "client_payload[run_id]=$WORKFLOW_RUN_ID"
            -f "client_payload[repo]=$REPOSITORY"
            -f "client_payload[branch]=$BRANCH"
            -f "client_payload[commit]=$COMMIT"
          )

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

          gh api repos/twentyhq/ci-privileged/dispatches "${ARGS[@]}"

  # ── Dispatch: twenty-new-ui pixel diff (CI New UI, PRs + main) ──
  dispatch-twenty-new-ui:
    needs: resolve-context
    if: >-
      needs.resolve-context.outputs.workflow_name == 'CI New UI' &&
      needs.resolve-context.outputs.has_artifact == 'true'
    runs-on: ubuntu-latest
    timeout-minutes: 5
    steps:
      - name: Dispatch to ci-privileged
        env:
          GH_TOKEN: ${{ secrets.CI_PRIVILEGED_DISPATCH_TOKEN }}
          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 }}
          PR_NUMBER: ${{ needs.resolve-context.outputs.pr_number }}
          REFERENCE_COMMIT: ${{ needs.resolve-context.outputs.merge_base_sha }}
          ARTIFACT_NAME: ${{ needs.resolve-context.outputs.artifact_name }}
        run: |
          ARGS=(
            --method POST
            -f event_type=visual-regression
            -f "client_payload[project]=twenty-new-ui"
            -f "client_payload[artifact_name]=$ARTIFACT_NAME"
            -f "client_payload[run_id]=$WORKFLOW_RUN_ID"
            -f "client_payload[repo]=$REPOSITORY"
            -f "client_payload[branch]=$BRANCH"
            -f "client_payload[commit]=$COMMIT"
          )

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

          gh api repos/twentyhq/ci-privileged/dispatches "${ARGS[@]}"

  # ── Dispatch: cross-comparison baseline (CI UI on main → twenty-ui-vs-new-ui) ──
  dispatch-comparison-baseline:
    needs: resolve-context
    if: >-
      needs.resolve-context.outputs.workflow_name == 'CI UI' &&
      needs.resolve-context.outputs.has_artifact == 'true' &&
      github.event.workflow_run.event == 'push' &&
      github.event.workflow_run.head_branch == 'main'
    runs-on: ubuntu-latest
    timeout-minutes: 5
    steps:
      - name: Dispatch to ci-privileged (comparison baseline)
        env:
          GH_TOKEN: ${{ secrets.CI_PRIVILEGED_DISPATCH_TOKEN }}
          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 }}
          ARTIFACT_NAME: ${{ needs.resolve-context.outputs.artifact_name }}
        run: |
          gh api repos/twentyhq/ci-privileged/dispatches \
            --method POST \
            -f event_type=visual-regression \
            -f "client_payload[project]=twenty-ui-vs-new-ui" \
            -f "client_payload[artifact_name]=$ARTIFACT_NAME" \
            -f "client_payload[run_id]=$WORKFLOW_RUN_ID" \
            -f "client_payload[repo]=$REPOSITORY" \
            -f "client_payload[branch]=$BRANCH" \
            -f "client_payload[commit]=$COMMIT"

  # ── Dispatch: cross-comparison PR (CI New UI on PRs → twenty-ui-vs-new-ui) ──
  dispatch-comparison-pr:
    needs: resolve-context
    if: >-
      needs.resolve-context.outputs.workflow_name == 'CI New UI' &&
      needs.resolve-context.outputs.has_artifact == 'true' &&
      needs.resolve-context.outputs.is_pr == 'true' &&
      github.event.workflow_run.event == 'pull_request'
    runs-on: ubuntu-latest
    timeout-minutes: 5
    steps:
      - name: Dispatch to ci-privileged (comparison PR)
        env:
          GH_TOKEN: ${{ secrets.CI_PRIVILEGED_DISPATCH_TOKEN }}
          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 }}
          PR_NUMBER: ${{ needs.resolve-context.outputs.pr_number }}
          REFERENCE_COMMIT: ${{ needs.resolve-context.outputs.merge_base_sha }}
          ARTIFACT_NAME: ${{ needs.resolve-context.outputs.artifact_name }}
        run: |
          ARGS=(
            --method POST
            -f event_type=visual-regression
            -f "client_payload[project]=twenty-ui-vs-new-ui"
            -f "client_payload[artifact_name]=$ARTIFACT_NAME"
            -f "client_payload[run_id]=$WORKFLOW_RUN_ID"
            -f "client_payload[repo]=$REPOSITORY"
            -f "client_payload[branch]=$BRANCH"
            -f "client_payload[commit]=$COMMIT"
            -f "client_payload[pr_number]=$PR_NUMBER"
          )

          if [ -n "$REFERENCE_COMMIT" ]; then
            ARGS+=(-f "client_payload[reference_commit]=$REFERENCE_COMMIT")
          fi

          gh api repos/twentyhq/ci-privileged/dispatches "${ARGS[@]}"