/**
 * HTTP client for the opencode-bridge server extension.
 */
import { URLExt } from '@jupyterlab/coreutils';
import { ServerConnection } from '@jupyterlab/services';

import type { OpenCodeProvidersResponse, OpenCodeRequest, OpenCodeResponse } from '../types';

/**
 * Call POST /opencode-bridge/edit. Returns parsed response (success or failure).
 * Throws on network error or non-JSON response.
 */
export async function callOpenCodeEdit(
  request: OpenCodeRequest,
  serverSettings: ServerConnection.ISettings
): Promise<OpenCodeResponse> {
  const url = URLExt.join(
    serverSettings.baseUrl,
    'opencode-bridge',
    'edit'
  );

  const init: RequestInit = {
    method: 'POST',
    body: JSON.stringify(request),
    headers: { 'Content-Type': 'application/json' },
  };

  let response: Response;
  try {
    response = await ServerConnection.makeRequest(url, init, serverSettings);
  } catch (error) {
    throw new Error(
      `network error calling opencode-bridge: ${(error as Error).message}`
    );
  }

  const text = await response.text();
  if (!text) {
    throw new Error(
      `empty response from opencode-bridge (status ${response.status})`
    );
  }

  let parsed: unknown;
  try {
    parsed = JSON.parse(text);
  } catch (e) {
    throw new Error(
      `non-JSON response from opencode-bridge (status ${response.status})`
    );
  }

  return parsed as OpenCodeResponse;
}

/**
 * Call GET /opencode-bridge/providers. Returns the parsed JSON response.
 * Throws on network error or non-2xx status.
 */
export async function callOpenCodeProviders(
  serverSettings: ServerConnection.ISettings
): Promise<OpenCodeProvidersResponse> {
  const url = URLExt.join(
    serverSettings.baseUrl,
    'opencode-bridge',
    'providers'
  );

  let response: Response;
  try {
    response = await ServerConnection.makeRequest(url, { method: 'GET' }, serverSettings);
  } catch (error) {
    throw new Error(
      `network error calling opencode-bridge/providers: ${(error as Error).message}`
    );
  }

  if (!response.ok) {
    throw new Error(
      `opencode-bridge/providers failed: ${response.status} ${response.statusText}`
    );
  }

  return (await response.json()) as OpenCodeProvidersResponse;
}