// modules/data/gitea.js — All Gitea API calls
// Writes to S: _activeAgentCount, _matrixCommitHashes, agentStatus
import { S } from '../state.js';

const GITEA_BASE = 'http://143.198.27.163:3000/api/v1';
const GITEA_TOKEN = 'dc0517a965226b7a0c5ffdd961b1ba26521ac592';
const GITEA_REPOS = ['Timmy_Foundation/the-nexus', 'Timmy_Foundation/hermes-agent'];
const AGENT_NAMES = ['Claude', 'Kimi', 'Perplexity', 'Groq', 'Grok', 'Ollama'];

const DAY_MS = 86400000;
const HOUR_MS = 3600000;
const CACHE_MS = 5 * 60 * 1000;

let _agentStatusCache = null;
let _agentStatusCacheTime = 0;
let _commitsCache = null;
let _commitsCacheTime = 0;

// --- Core fetchers ---

export async function fetchNexusCommits(limit = 50) {
  const now = Date.now();
  if (_commitsCache && (now - _commitsCacheTime < CACHE_MS)) return _commitsCache;

  try {
    const res = await fetch(
      `${GITEA_BASE}/repos/Timmy_Foundation/the-nexus/commits?limit=${limit}`,
      { headers: { 'Authorization': `token ${GITEA_TOKEN}` } }
    );
    if (!res.ok) return [];
    _commitsCache = await res.json();
    _commitsCacheTime = now;
    return _commitsCache;
  } catch {
    return [];
  }
}

async function fetchRepoCommits(repo, limit = 30) {
  try {
    const res = await fetch(
      `${GITEA_BASE}/repos/${repo}/commits?sha=main&limit=${limit}&token=${GITEA_TOKEN}`
    );
    if (!res.ok) return [];
    return await res.json();
  } catch {
    return [];
  }
}

async function fetchOpenPRs() {
  try {
    const res = await fetch(
      `${GITEA_BASE}/repos/Timmy_Foundation/the-nexus/pulls?state=open&limit=50&token=${GITEA_TOKEN}`
    );
    if (res.ok) return await res.json();
  } catch { /* ignore */ }
  return [];
}

export async function fetchAgentStatus() {
  const now = Date.now();
  if (_agentStatusCache && (now - _agentStatusCacheTime < CACHE_MS)) return _agentStatusCache;

  const allRepoCommits = await Promise.all(GITEA_REPOS.map(r => fetchRepoCommits(r)));
  const openPRs = await fetchOpenPRs();

  const agents = [];
  for (const agentName of AGENT_NAMES) {
    const nameLower = agentName.toLowerCase();
    const allCommits = [];

    for (const repoCommits of allRepoCommits) {
      if (!Array.isArray(repoCommits)) continue;
      const matching = repoCommits.filter(c =>
        (c.commit?.author?.name || '').toLowerCase().includes(nameLower)
      );
      allCommits.push(...matching);
    }

    let status = 'dormant';
    let lastSeen = null;
    let currentWork = null;

    if (allCommits.length > 0) {
      allCommits.sort((a, b) =>
        new Date(b.commit.author.date) - new Date(a.commit.author.date)
      );
      const latest = allCommits[0];
      const commitTime = new Date(latest.commit.author.date).getTime();
      lastSeen = latest.commit.author.date;
      currentWork = latest.commit.message.split('\n')[0];

      if (now - commitTime < HOUR_MS) status = 'working';
      else if (now - commitTime < DAY_MS) status = 'idle';
      else status = 'dormant';
    }

    const agentPRs = openPRs.filter(pr =>
      (pr.user?.login || '').toLowerCase().includes(nameLower) ||
      (pr.head?.label || '').toLowerCase().includes(nameLower)
    );

    agents.push({
      name: nameLower,
      status,
      issue: currentWork,
      prs_today: agentPRs.length,
      local: nameLower === 'ollama',
    });
  }

  _agentStatusCache = { agents };
  _agentStatusCacheTime = now;
  return _agentStatusCache;
}

// --- State updaters ---

export async function refreshCommitData() {
  const commits = await fetchNexusCommits();
  S._matrixCommitHashes = commits.slice(0, 20)
    .map(c => (c.sha || '').slice(0, 7))
    .filter(h => h.length > 0);
  return commits;
}

export async function refreshAgentData() {
  try {
    const data = await fetchAgentStatus();
    S._activeAgentCount = data.agents.filter(a => a.status === 'working').length;
    return data;
  } catch {
    const fallback = { agents: AGENT_NAMES.map(n => ({
      name: n.toLowerCase(), status: 'unreachable', issue: null, prs_today: 0, local: false,
    })) };
    S._activeAgentCount = 0;
    return fallback;
  }
}

export async function fetchMergedPRs(limit = 20) {
  try {
    const res = await fetch(
      `${GITEA_BASE}/repos/Timmy_Foundation/the-nexus/pulls?state=closed&limit=${limit}`,
      { headers: { 'Authorization': `token ${GITEA_TOKEN}` } }
    );
    if (!res.ok) return [];
    const data = await res.json();
    return data
      .filter(p => p.merged)
      .map(p => ({
        prNum: p.number,
        title: p.title
          .replace(/^\[[\w\s]+\]\s*/i, '')
          .replace(/\s*\(#\d+\)\s*$/, ''),
      }));
  } catch {
    return [];
  }
}

export { GITEA_BASE, GITEA_TOKEN, GITEA_REPOS, AGENT_NAMES, CACHE_MS as AGENT_STATUS_CACHE_MS };