// RoadCode Squad — when issues/PRs are created on Gitea, agents respond
// Cloudflare Worker receiving Gitea webhooks

const SQUAD = [
  {
    name: 'Alice', username: 'alice', role: 'Gateway & Infrastructure', emoji: '🌐',
    keywords: ['dns', 'route', 'tunnel', 'nginx', 'domain', 'pi-hole', 'cloudflare', 'network', 'gateway', 'proxy', 'ssl', 'cert'],
    prompt: 'You are Alice, the gateway agent of BlackRoad OS. You manage DNS, routing, Pi-hole, nginx, and network infrastructure. Respond in 1-2 concise sentences from your infrastructure perspective.',
  },
  {
    name: 'Lucidia', username: 'lucidia-agent', role: 'Memory & Cognition', emoji: '🧠',
    keywords: ['memory', 'learn', 'context', 'knowledge', 'ai', 'cognit', 'think', 'remember', 'understand', 'creative'],
    prompt: 'You are Lucidia, the cognitive core of BlackRoad OS. You handle memory, learning, persistent context, and creative intelligence. Respond in 1-2 concise sentences from your cognition perspective.',
  },
  {
    name: 'Cecilia', username: 'cecilia', role: 'Edge AI & Inference', emoji: '⚡',
    keywords: ['hailo', 'ollama', 'model', 'inference', 'gpu', 'tops', 'ml', 'tensor', 'vision', 'llm', 'latency'],
    prompt: 'You are Cecilia, the edge AI agent of BlackRoad OS. You run Hailo-8 accelerators (26 TOPS), Ollama models, and edge inference. Respond in 1-2 concise sentences from your AI/inference perspective.',
  },
  {
    name: 'Cece', username: 'cece', role: 'API Gateway', emoji: '🔌',
    keywords: ['api', 'endpoint', 'rest', 'webhook', 'schema', 'json', 'request', 'response', 'auth', 'token', 'cors'],
    prompt: 'You are Cece, the API gateway agent of BlackRoad OS. You manage REST APIs, webhooks, service mesh, and inter-agent communication. Respond in 1-2 concise sentences from your API perspective.',
  },
  {
    name: 'Aria', username: 'aria', role: 'Orchestration', emoji: '🎵',
    keywords: ['docker', 'container', 'swarm', 'portainer', 'deploy', 'orchestrat', 'service', 'scale', 'replica'],
    prompt: 'You are Aria, the orchestration agent of BlackRoad OS. You manage Portainer, Docker Swarm, container orchestration, and service coordination. Respond in 1-2 concise sentences from your orchestration perspective.',
  },
  {
    name: 'Eve', username: 'eve', role: 'Intelligence & Analysis', emoji: '👁️',
    keywords: ['pattern', 'anomal', 'analyz', 'signal', 'detect', 'insight', 'monitor', 'metric', 'trend', 'alert'],
    prompt: 'You are Eve, the intelligence agent of BlackRoad OS. You analyze patterns, detect anomalies, and provide strategic insights. Respond in 1-2 concise sentences from your intelligence perspective.',
  },
  {
    name: 'Meridian', username: 'meridian', role: 'Networking & Mesh', emoji: '🌊',
    keywords: ['wireguard', 'mesh', 'vpn', 'roadnet', 'peer', 'tunnel', 'subnet', 'link', 'connect', 'latency', 'bandwidth'],
    prompt: 'You are Meridian, the networking agent of BlackRoad OS. You manage WireGuard mesh, RoadNet, Cloudflare tunnels, and inter-node connectivity. Respond in 1-2 concise sentences from your networking perspective.',
  },
  {
    name: 'Sentinel', username: 'sentinel', role: 'Security & Audit', emoji: '🛡️',
    keywords: ['security', 'ssh', 'key', 'firewall', 'ufw', 'audit', 'threat', 'vuln', 'permission', 'encrypt', 'secret'],
    prompt: 'You are Sentinel, the security agent of BlackRoad OS. You handle SSH key management, firewall rules, audit logs, and threat detection. Respond in 1-2 concise sentences from your security perspective.',
  },
];

// Score how relevant an agent is to the content
function scoreRelevance(agent, text) {
  const lower = text.toLowerCase();
  let score = 0;
  for (const kw of agent.keywords) {
    if (lower.includes(kw)) score += 1;
  }
  return score;
}

// Get AI response from Ollama
async function getAgentResponse(agent, context, ollamaUrl) {
  try {
    const res = await fetch(`${ollamaUrl}/api/generate`, {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({
        model: 'llama3.2',
        prompt: `${agent.prompt}\n\nContext: A new ${context.type} was created on RoadCode (Gitea).\nTitle: ${context.title}\nBody: "${context.body}"\nRepo: ${context.repo}\n\nRespond briefly (1-2 sentences max) from your role as ${agent.name} (${agent.role}). Be helpful and specific.`,
        stream: false,
        options: { temperature: 0.7, num_predict: 100 },
      }),
    });
    if (!res.ok) return null;
    const data = await res.json();
    return data.response?.trim();
  } catch {
    return null;
  }
}

// Deterministic fallback
function getFallback(agent, context) {
  const type = context.type || 'issue';
  const body = (context.body || '').toLowerCase();

  if (body.includes('bug') || body.includes('fix') || body.includes('error') || body.includes('broken')) {
    return {
      Alice: 'Checking routing and DNS. If this touches infrastructure, I need to verify the tunnel configs.',
      Lucidia: 'I remember seeing patterns like this before. Let me search the memory chain for related context.',
      Cecilia: 'Running diagnostics on the inference pipeline. Hailo-8 and Ollama both reporting normal.',
      Cece: 'Checking API health. All endpoints responding — I\'ll trace the request path.',
      Aria: 'Checking container orchestration. Docker Swarm services all reporting healthy.',
      Eve: 'Analyzing the pattern. I\'ve flagged similar signals in the audit trail — sending intel.',
      Meridian: 'WireGuard mesh is stable. All tunnels up. Checking if this is a connectivity issue.',
      Sentinel: 'Security audit running. Checking if this has any exposure vectors.',
    }[agent.name];
  }

  return {
    Alice: 'Gateway standing by. All domains routing clean.',
    Lucidia: 'Cognitive core online. Memory chain intact, context loaded.',
    Cecilia: 'Edge inference ready. 52 TOPS across the fleet, models loaded.',
    Cece: 'API gateway healthy. All service endpoints responding.',
    Aria: 'Orchestration layer ready. All containers balanced across the mesh.',
    Eve: 'Intelligence scan complete. No anomalies detected across the fleet.',
    Meridian: 'Mesh network connected. 5 nodes, all WireGuard tunnels active.',
    Sentinel: 'Security posture nominal. All nodes hardened, audit trail logging.',
  }[agent.name];
}

// Post comment to Gitea as a specific agent
async function postComment(giteaUrl, repo, issueNum, body, agentToken) {
  const res = await fetch(`${giteaUrl}/api/v1/repos/${repo}/issues/${issueNum}/comments?token=${agentToken}`, {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ body }),
  });
  return res.ok;
}

// Auto-label based on content
async function autoLabel(giteaUrl, repo, issueNum, text, adminToken) {
  const lower = text.toLowerCase();
  const labels = [];

  if (lower.includes('bug') || lower.includes('fix') || lower.includes('broken') || lower.includes('error')) labels.push('bug');
  if (lower.includes('feature') || lower.includes('add') || lower.includes('new')) labels.push('feature');
  if (lower.includes('security') || lower.includes('vuln') || lower.includes('ssh')) labels.push('security');
  if (lower.includes('deploy') || lower.includes('infra') || lower.includes('dns') || lower.includes('tunnel')) labels.push('infrastructure');
  if (lower.includes('doc') || lower.includes('readme')) labels.push('documentation');
  if (lower.includes('performance') || lower.includes('slow') || lower.includes('latency')) labels.push('performance');

  if (labels.length === 0) return;

  // Get org label IDs
  const labelsRes = await fetch(`${giteaUrl}/api/v1/orgs/blackroad-os/labels?token=${adminToken}&limit=50`);
  const allLabels = await labelsRes.json();
  const labelIds = allLabels.filter(l => labels.includes(l.name)).map(l => l.id);

  if (labelIds.length > 0) {
    await fetch(`${giteaUrl}/api/v1/repos/${repo}/issues/${issueNum}/labels?token=${adminToken}`, {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ labels: labelIds }),
    });
  }
}

export default {
  async fetch(request, env) {
    const url = new URL(request.url);

    if (request.method === 'OPTIONS') {
      return new Response(null, { status: 204, headers: { 'Access-Control-Allow-Origin': '*', 'Access-Control-Allow-Methods': 'GET, POST' } });
    }

    // Health
    if (url.pathname === '/health') {
      return Response.json({ status: 'ok', service: 'roadcode-squad', agents: SQUAD.length, version: '1.0.0' });
    }

    // Status
    if (url.pathname === '/' && request.method === 'GET') {
      return Response.json({
        service: 'RoadCode Squad',
        tagline: 'BlackRoad OS — Pave Tomorrow.',
        agents: SQUAD.map(a => ({ name: a.name, username: a.username, role: a.role, emoji: a.emoji })),
      });
    }

    // Webhook from Gitea
    if (url.pathname === '/webhook' && request.method === 'POST') {
      const payload = await request.json();
      const event = request.headers.get('X-Gitea-Event') || request.headers.get('X-GitHub-Event');

      if (event === 'ping') {
        return Response.json({ ok: true, message: 'RoadCode Squad active. Pave Tomorrow.' });
      }

      // Only respond to new issues and new issue comments
      if (event !== 'issues' && event !== 'issue_comment') {
        return Response.json({ skipped: true, reason: `unhandled event: ${event}` });
      }

      if (event === 'issues' && payload.action !== 'opened') {
        return Response.json({ skipped: true, reason: 'issue not opened' });
      }
      if (event === 'issue_comment' && payload.action !== 'created') {
        return Response.json({ skipped: true, reason: 'comment not created' });
      }

      // Don't respond to agent comments (prevent loops)
      const author = payload.comment?.user?.login || payload.sender?.login;
      const agentUsernames = SQUAD.map(a => a.username);
      if (agentUsernames.includes(author)) {
        return Response.json({ skipped: true, reason: 'agent comment, skipping loop' });
      }

      const issue = payload.issue;
      const repo = payload.repository?.full_name;
      const issueNum = issue?.number;
      const title = issue?.title || '';
      const body = event === 'issue_comment' ? (payload.comment?.body || '') : (issue?.body || '');
      const fullText = `${title} ${body}`;

      const context = {
        type: event === 'issues' ? 'issue' : 'comment',
        title,
        body: fullText.slice(0, 500),
        repo,
      };

      const giteaUrl = env.GITEA_URL || 'https://git.blackroad.io';

      // Auto-label the issue
      if (event === 'issues') {
        await autoLabel(giteaUrl, repo, issueNum, fullText, env.ADMIN_TOKEN);
      }

      // Score each agent's relevance and pick top 3 + always include Eve (analysis)
      const scored = SQUAD.map(a => ({ ...a, score: scoreRelevance(a, fullText) }));
      scored.sort((a, b) => b.score - a.score);

      const responding = [];
      const topAgents = scored.slice(0, 3);
      for (const a of topAgents) responding.push(a);
      if (!responding.find(a => a.name === 'Eve')) responding.push(scored.find(a => a.name === 'Eve'));
      if (!responding.find(a => a.name === 'Sentinel')) responding.push(scored.find(a => a.name === 'Sentinel'));

      // Each relevant agent posts their own comment
      const agentTokens = {
        alice: env.ALICE_TOKEN,
        'lucidia-agent': env.LUCIDIA_TOKEN,
        cecilia: env.CECILIA_TOKEN,
        cece: env.CECE_TOKEN,
        aria: env.ARIA_TOKEN,
        eve: env.EVE_TOKEN,
        meridian: env.MERIDIAN_TOKEN,
        sentinel: env.SENTINEL_TOKEN,
      };

      let posted = 0;
      const aiEnabled = env.OLLAMA_URL && env.SQUAD_AI !== 'false';

      for (const agent of responding) {
        const token = agentTokens[agent.username];
        if (!token) continue;

        let response = null;
        if (aiEnabled) {
          response = await getAgentResponse(agent, context, env.OLLAMA_URL);
        }
        if (!response) {
          response = getFallback(agent, context);
        }

        const comment = `${agent.emoji} **${agent.name}** *(${agent.role})*\n\n${response}\n\n---\n*Assigned via RoadCode Squad — BlackRoad OS*`;
        const ok = await postComment(giteaUrl, repo, issueNum, comment, token);
        if (ok) posted++;
      }

      return Response.json({ ok: true, event, repo, issue: issueNum, agents_responded: posted });
    }

    return Response.json({ error: 'Not found' }, { status: 404 });
  },
};