// Changelog desde la API de Gitea (commits del repo).
const GITEA = process.env.GITEA_URL || 'https://git.nightspire.gg'
const REPO = process.env.GITEA_REPO || 'Inna/NovaWoW'

export interface Commit {
  sha: string
  shortSha: string
  title: string
  body: string
  author: string
  date: string
  url: string
}

interface GiteaCommit {
  sha: string
  html_url: string
  created?: string
  commit?: { message?: string; author?: { name?: string; date?: string } }
  author?: { login?: string } | null
}

export async function getCommits(limit = 50): Promise<Commit[]> {
  try {
    const res = await fetch(`${GITEA}/api/v1/repos/${REPO}/commits?limit=${limit}`, {
      headers: { Accept: 'application/json' },
      // Cache corto para no golpear Gitea en cada visita.
      next: { revalidate: 300 },
    })
    if (!res.ok) return []
    const data = (await res.json()) as GiteaCommit[]
    return data.map((c) => {
      const msg = c.commit?.message ?? ''
      const lines = msg.split('\n')
      const title = lines[0].trim()
      // Cuerpo sin la primera línea y sin los trailers (Co-Authored-By, etc.).
      const body = lines
        .slice(1)
        .filter((l) => !/^Co-Authored-By:/i.test(l.trim()) && !/Generated with \[?Claude/i.test(l))
        .join('\n')
        .trim()
      return {
        sha: c.sha,
        shortSha: c.sha.slice(0, 7),
        title,
        body,
        author: c.commit?.author?.name || c.author?.login || '',
        date: c.commit?.author?.date || c.created || '',
        url: c.html_url,
      }
    })
  } catch {
    return []
  }
}