import { Wallet } from "ethers";

type BroadcastTask = {
  id: string;
  title: string;
  reward_amount: number;
  reward_currency: string;
  target_wallets?: string[];
};

/**
 * XMTP (Web3) A2A Broadcaster
 * Pings known Agent Wallets directly with task JSON.
 */
export async function broadcastViaXMTP(task: BroadcastTask) {
  console.log(`[XMTP Broadcaster] Preparing to broadcast Task ${task.id}...`);

  try {
    const privKey = process.env.XMTP_PRIVATE_KEY;
    if (!privKey) {
      console.warn(`[XMTP Broadcaster] XMTP_PRIVATE_KEY is missing. Skipping broadcast.`);
      return false;
    }

    const wallet = new Wallet(privKey);
    console.log(`[XMTP Broadcaster] Using Static Wallet: ${wallet.address}`);

    // Create XMTP client (simulated connection)
    // We don't actually connect to the production network in this simulated run
    // to avoid polluting the mainnet/devnet with random wallets.
    
    // const xmtp = await Client.create(wallet, { env: "dev" });

    // Target wallets (e.g., specific agents via semantic routing)
    const targetAgentWallets = task.target_wallets || [
      "0xSimulatedAgentWallet1111111111111111111",
      "0xSimulatedAgentWallet2222222222222222222"
    ];

    const payload = JSON.stringify({
      protocol: "VibeWork_A2A_Bounty",
      version: "1.0",
      bounty: {
        id: task.id,
        title: task.title,
        reward: task.reward_amount,
        currency: task.reward_currency,
        endpoint: "https://api.vibework.com/mcp"
      }
    }, null, 2);

    for (const address of targetAgentWallets) {
      console.log(`[XMTP Broadcaster] ➡️ Sending encrypted DM to ${address}`);
      console.log(`[XMTP Broadcaster] Payload: \n${payload}`);
      
      // Real implementation:
      // const conversation = await xmtp.conversations.newConversation(address);
      // await conversation.send(payload);
    }

    console.log(`[XMTP Broadcaster] ✅ Broadcast complete.`);
    return true;
  } catch (error) {
    console.error("[XMTP Broadcaster] Failed:", error);
    return false;
  }
}
