// Neubau einer Preview/Live-Seite anstossen (WOMS-Preview-Block, Website-Analyse ein/aus)
import { getRepoInfo } from './giteaAdmin.js'
import { runDeploy, fetchPreviewConfig } from './previewDeploy.js'

const BUSY = 'Server ausgelastet, versuche es gleich noch mal'

export async function previewBranchOf(doc) {
  return doc.previewBranch || (await getRepoInfo(doc.repoFullName).catch(() => null))?.defaultBranch || 'main'
}

// Neubau anstossen (wie beim Bearbeiten/Reaktivieren eines Projekts)
export async function triggerRebuild(doc) {
  const repo = doc.repoFullName
  const branch = await previewBranchOf(doc)
  const found = await fetchPreviewConfig(repo, branch).catch(() => null)
  const cfg = {
    enabled: true,
    type: 'static',
    displayName: doc.projectName,
    ...(found || {}),
    branch,
    subdomain: doc.subdomain,
  }
  const result = await runDeploy(repo, branch, cfg, { project: doc })
  // runDeploy meldet Runner-Fehler im Ergebnis; Schutzschalter (503) an WOMS durchreichen
  if (result?.error && /Server ausgelastet/.test(result.error)) {
    const err = new Error(BUSY)
    err.status = 503
    err.expected = true
    throw err
  }
  return result
}