import {
  createBrowserControlContext,
  ensureBrowserControlRuntime,
  getBrowserControlState,
  stopBrowserControlRuntime,
} from "./browser-control-state.js";
import { loadBrowserConfigForRuntimeRefresh } from "./browser/config-refresh-source.js";
import { resolveBrowserConfig } from "./browser/config.js";
import { ensureBrowserControlAuth } from "./browser/control-auth.js";
import type { BrowserServerState } from "./browser/server-context.js";
import { getRuntimeConfig } from "./config/config.js";
import { createSubsystemLogger } from "./logging/subsystem.js";
import { isDefaultBrowserPluginEnabled } from "./plugin-enabled.js";

const log = createSubsystemLogger("browser");
const logService = log.child("service");

export async function startBrowserControlServiceFromConfig(): Promise<BrowserServerState | null> {
  const current = getBrowserControlState();
  if (current) {
    return current;
  }

  const cfg = getRuntimeConfig();
  const browserCfg = loadBrowserConfigForRuntimeRefresh();
  if (!isDefaultBrowserPluginEnabled(browserCfg)) {
    return null;
  }
  const resolved = resolveBrowserConfig(browserCfg.browser, browserCfg);
  if (!resolved.enabled) {
    return null;
  }
  try {
    const ensured = await ensureBrowserControlAuth({ cfg });
    if (ensured.generatedToken) {
      logService.info("No browser auth configured; generated gateway.auth.token automatically.");
    }
  } catch (err) {
    logService.warn(`failed to auto-configure browser auth: ${String(err)}`);
  }

  const state = await ensureBrowserControlRuntime({
    server: null,
    port: resolved.controlPort,
    resolved,
    owner: "service",
    onWarn: (message) => logService.warn(message),
  });

  logService.info(
    `Browser control service ready (profiles=${Object.keys(resolved.profiles).length})`,
  );
  return state;
}

export async function stopBrowserControlService(): Promise<void> {
  await stopBrowserControlRuntime({
    requestedBy: "service",
    onWarn: (message) => logService.warn(message),
  });
}

export { createBrowserControlContext, getBrowserControlState };