import * as vscode from "vscode";
import { fetchSdkSummary } from "./cline";

const CHANNEL_NAME = "Cowriting (Cline SDK)";

export function activate(context: vscode.ExtensionContext): void {
  const output = vscode.window.createOutputChannel(CHANNEL_NAME);
  context.subscriptions.push(output);

  const command = vscode.commands.registerCommand(
    "cowriting.showClineSdkInfo",
    async () => {
      try {
        const summary = await fetchSdkSummary();
        output.clear();
        output.appendLine(`@cline/sdk version: ${summary.version}`);
        output.appendLine(`Builtin tools (${summary.tools.length}):`);
        for (const tool of summary.tools) {
          output.appendLine(`  • ${tool.id} — ${tool.description}`);
        }
        output.show(true);
        await vscode.window.showInformationMessage(
          `Cline SDK ${summary.version} loaded — ${summary.tools.length} builtin tools. See the "${CHANNEL_NAME}" output channel.`
        );
      } catch (err) {
        const message = err instanceof Error ? err.message : String(err);
        output.appendLine(`Failed to drive @cline/sdk: ${message}`);
        output.show(true);
        await vscode.window.showErrorMessage(
          `Cowriting: failed to load @cline/sdk — ${message}`
        );
      }
    }
  );
  context.subscriptions.push(command);
}

export function deactivate(): void {
  // Nothing to clean up beyond the disposables registered on the context.
}