import { createShade } from '@shade/sdk';
import { loadConfig } from '../config.js';

export async function peerAddCommand(address: string): Promise<void> {
  const config = loadConfig();
  const shade = await createShade({
    prekeyServer: config.prekeyServer,
    storage: config.storage,
    address: config.address,
    autoReplenish: false,
  });

  try {
    // Fetching and establishing happens on first send; we fake-send by
    // calling the manager directly.
    const transport = shade.getTransport();
    const bundle = await transport.fetchBundle(address);
    await shade.getManager().initSessionFromBundle(address, bundle);
    const fp = await shade.getFingerprintFor(address);
    console.log(`\x1b[32m✓\x1b[0m Session established with ${address}`);
    console.log(`  Fingerprint: ${fp}`);
    console.log();
    console.log('Verify this fingerprint with the peer out-of-band before exchanging sensitive messages.');
  } finally {
    await shade.shutdown();
  }
}

export async function peerListCommand(): Promise<void> {
  // Loading the config validates the environment; we don't need its values
  // until session enumeration is implemented (TODO).
  loadConfig();

  // For list, we need to enumerate sessions from storage. The StorageProvider
  // doesn't currently expose a "list all sessions" method. For v1, we show
  // a message and suggest the dashboard.
  console.log('\x1b[33mNote:\x1b[0m CLI session enumeration not yet implemented.');
  console.log('Run `shade dashboard` for a live session list.');
}

export async function peerVerifyCommand(address: string, fingerprint: string): Promise<void> {
  const config = loadConfig();
  const shade = await createShade({
    prekeyServer: config.prekeyServer,
    storage: config.storage,
    address: config.address,
    autoReplenish: false,
  });

  try {
    const match = await shade.verify(address, fingerprint);
    if (match) {
      console.log(`\x1b[32m✓\x1b[0m Fingerprint matches session with ${address}`);
    } else {
      const actual = await shade.getFingerprintFor(address);
      console.log(`\x1b[31m✗\x1b[0m Fingerprint does NOT match`);
      console.log(`  Expected: ${fingerprint}`);
      console.log(`  Actual:   ${actual}`);
      process.exitCode = 1;
    }
  } finally {
    await shade.shutdown();
  }
}

export async function peerRemoveCommand(address: string): Promise<void> {
  const config = loadConfig();
  const shade = await createShade({
    prekeyServer: config.prekeyServer,
    storage: config.storage,
    address: config.address,
    autoReplenish: false,
  });

  try {
    await shade.getManager().resetSession(address);
    console.log(`\x1b[32m✓\x1b[0m Session with ${address} removed`);
  } finally {
    await shade.shutdown();
  }
}