#!/usr/bin/env node
const fs = require('fs');

const [, , resultsPath] = process.argv;

// This runs with `if: always()`, so it also fires when an earlier step failed and
// no results file was ever written. Report that plainly and exit 0 — the job still
// fails on the real step, and a stack trace here would only bury it.
if (!fs.existsSync(resultsPath)) {
  report([`## Playwright E2E Results`, '', `No results file at \`${resultsPath}\` — the test step failed before writing one.`, '']);
  console.log(`Playwright: no results file at ${resultsPath} — the test step failed before writing one`);
  process.exit(0);
}

const raw = fs.readFileSync(resultsPath, 'utf-8');
const data = JSON.parse(raw);
const stats = data.stats || {};

const lines = [];
lines.push('## Playwright E2E Results');
lines.push('');
lines.push('| | Count |');
lines.push('|---|---|');
lines.push(`| ✅ Passed | ${stats.expected || 0} |`);
lines.push(`| ❌ Failed | ${stats.unexpected || 0} |`);
lines.push(`| ⚠️ Flaky | ${stats.flaky || 0} |`);
lines.push(`| ⏭️ Skipped | ${stats.skipped || 0} |`);
lines.push('');

function collectFailures(suites, path) {
  path = path || [];
  let failures = [];
  for (const suite of suites || []) {
    const currentPath = path.concat(suite.title).filter(Boolean);
    for (const spec of suite.specs || []) {
      for (const test of spec.tests || []) {
        for (const result of test.results || []) {
          if (result.status !== 'passed' && result.status !== 'skipped') {
            failures.push(`${currentPath.join(' > ')} > ${spec.title}: ${result.status}`);
          }
        }
      }
    }
    if (suite.suites) failures = failures.concat(collectFailures(suite.suites, currentPath));
  }
  return failures;
}

const failures = collectFailures(data.suites);
if (failures.length) {
  lines.push('### Failures');
  lines.push('');
  for (const f of failures) lines.push(`- ${f}`);
  lines.push('');
}

report(lines);

headline();

// Exits 0 whatever it found. Summarising and gating are two jobs, and this
// script doing both meant the workflow failed at a step named "Summarize
// end-to-end tests", which reads as a broken summary script rather than as
// failing tests. The workflow's own `Fail if either suite failed` step fails the
// job now. It was written for exactly that and was being skipped, because a step
// whose `if:` omits always() still requires its predecessors to have succeeded,
// and this script had already failed the job before it could run.
process.exit(0);

/**
 * One line of counts on stdout, alongside the markdown.
 *
 * `report` writes to GITEA_STEP_SUMMARY when it is set, which under Actions is
 * always — so the table and the failure list landed in the Summary tab while the
 * log showed a bare exit with no output at all. This puts the numbers in the log
 * too, at the point the run stops.
 */
function headline() {
  const failed = stats.unexpected || 0;
  const counts =
    `Playwright: ${stats.expected || 0} passed, ${failed} failed, ` +
    `${stats.flaky || 0} flaky, ${stats.skipped || 0} skipped`;
  console.log(failed > 0 ? `${counts} — see the job summary for which` : counts);
}

function report(out) {
  const summaryPath = process.env.GITEA_STEP_SUMMARY || process.env.GITHUB_STEP_SUMMARY;
  if (summaryPath) {
    fs.appendFileSync(summaryPath, out.join('\n') + '\n');
  } else {
    console.log(out.join('\n'));
  }
}