import { loadConfig } from "../config/config.js";
import { fetchBrowserJson } from "./client-fetch.js";
import { resolveBrowserConfig } from "./config.js";

export type BrowserStatus = {
  enabled: boolean;
  controlUrl: string;
  profile?: string;
  running: boolean;
  cdpReady?: boolean;
  cdpHttp?: boolean;
  pid: number | null;
  cdpPort: number;
  cdpUrl?: string;
  chosenBrowser: string | null;
  userDataDir: string | null;
  color: string;
  headless: boolean;
  noSandbox?: boolean;
  executablePath?: string | null;
  attachOnly: boolean;
};

export type ProfileStatus = {
  name: string;
  cdpPort: number;
  cdpUrl: string;
  color: string;
  running: boolean;
  tabCount: number;
  isDefault: boolean;
  isRemote: boolean;
};

export type BrowserResetProfileResult = {
  ok: true;
  moved: boolean;
  from: string;
  to?: string;
};

export type BrowserTab = {
  targetId: string;
  title: string;
  url: string;
  wsUrl?: string;
  type?: string;
};

export type SnapshotAriaNode = {
  ref: string;
  role: string;
  name: string;
  value?: string;
  description?: string;
  backendDOMNodeId?: number;
  depth: number;
};

export type SnapshotResult =
  | {
      ok: true;
      format: "aria";
      targetId: string;
      url: string;
      nodes: SnapshotAriaNode[];
    }
  | {
      ok: true;
      format: "ai";
      targetId: string;
      url: string;
      snapshot: string;
    };

export function resolveBrowserControlUrl(overrideUrl?: string) {
  const cfg = loadConfig();
  const resolved = resolveBrowserConfig(cfg.browser);
  const url = overrideUrl?.trim() ? overrideUrl.trim() : resolved.controlUrl;
  return url.replace(/\/$/, "");
}

function buildProfileQuery(profile?: string): string {
  return profile ? `?profile=${encodeURIComponent(profile)}` : "";
}

export async function browserStatus(
  baseUrl: string,
  opts?: { profile?: string },
): Promise<BrowserStatus> {
  const q = buildProfileQuery(opts?.profile);
  return await fetchBrowserJson<BrowserStatus>(`${baseUrl}/${q}`, {
    timeoutMs: 1500,
  });
}

export async function browserProfiles(
  baseUrl: string,
): Promise<ProfileStatus[]> {
  const res = await fetchBrowserJson<{ profiles: ProfileStatus[] }>(
    `${baseUrl}/profiles`,
    { timeoutMs: 3000 },
  );
  return res.profiles ?? [];
}

export async function browserStart(
  baseUrl: string,
  opts?: { profile?: string },
): Promise<void> {
  const q = buildProfileQuery(opts?.profile);
  await fetchBrowserJson(`${baseUrl}/start${q}`, {
    method: "POST",
    timeoutMs: 15000,
  });
}

export async function browserStop(
  baseUrl: string,
  opts?: { profile?: string },
): Promise<void> {
  const q = buildProfileQuery(opts?.profile);
  await fetchBrowserJson(`${baseUrl}/stop${q}`, {
    method: "POST",
    timeoutMs: 15000,
  });
}

export async function browserResetProfile(
  baseUrl: string,
  opts?: { profile?: string },
): Promise<BrowserResetProfileResult> {
  const q = buildProfileQuery(opts?.profile);
  return await fetchBrowserJson<BrowserResetProfileResult>(
    `${baseUrl}/reset-profile${q}`,
    {
      method: "POST",
      timeoutMs: 20000,
    },
  );
}

export type BrowserCreateProfileResult = {
  ok: true;
  profile: string;
  cdpPort: number;
  cdpUrl: string;
  color: string;
  isRemote: boolean;
};

export async function browserCreateProfile(
  baseUrl: string,
  opts: { name: string; color?: string; cdpUrl?: string },
): Promise<BrowserCreateProfileResult> {
  return await fetchBrowserJson<BrowserCreateProfileResult>(
    `${baseUrl}/profiles/create`,
    {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({
        name: opts.name,
        color: opts.color,
        cdpUrl: opts.cdpUrl,
      }),
      timeoutMs: 10000,
    },
  );
}

export type BrowserDeleteProfileResult = {
  ok: true;
  profile: string;
  deleted: boolean;
};

export async function browserDeleteProfile(
  baseUrl: string,
  profile: string,
): Promise<BrowserDeleteProfileResult> {
  return await fetchBrowserJson<BrowserDeleteProfileResult>(
    `${baseUrl}/profiles/${encodeURIComponent(profile)}`,
    {
      method: "DELETE",
      timeoutMs: 20000,
    },
  );
}

export async function browserTabs(
  baseUrl: string,
  opts?: { profile?: string },
): Promise<BrowserTab[]> {
  const q = buildProfileQuery(opts?.profile);
  const res = await fetchBrowserJson<{ running: boolean; tabs: BrowserTab[] }>(
    `${baseUrl}/tabs${q}`,
    { timeoutMs: 3000 },
  );
  return res.tabs ?? [];
}

export async function browserOpenTab(
  baseUrl: string,
  url: string,
  opts?: { profile?: string },
): Promise<BrowserTab> {
  const q = buildProfileQuery(opts?.profile);
  return await fetchBrowserJson<BrowserTab>(`${baseUrl}/tabs/open${q}`, {
    method: "POST",
    headers: { "Content-Type": "application/json" },
    body: JSON.stringify({ url }),
    timeoutMs: 15000,
  });
}

export async function browserFocusTab(
  baseUrl: string,
  targetId: string,
  opts?: { profile?: string },
): Promise<void> {
  const q = buildProfileQuery(opts?.profile);
  await fetchBrowserJson(`${baseUrl}/tabs/focus${q}`, {
    method: "POST",
    headers: { "Content-Type": "application/json" },
    body: JSON.stringify({ targetId }),
    timeoutMs: 5000,
  });
}

export async function browserCloseTab(
  baseUrl: string,
  targetId: string,
  opts?: { profile?: string },
): Promise<void> {
  const q = buildProfileQuery(opts?.profile);
  await fetchBrowserJson(
    `${baseUrl}/tabs/${encodeURIComponent(targetId)}${q}`,
    {
      method: "DELETE",
      timeoutMs: 5000,
    },
  );
}

export async function browserSnapshot(
  baseUrl: string,
  opts: {
    format: "aria" | "ai";
    targetId?: string;
    limit?: number;
    profile?: string;
  },
): Promise<SnapshotResult> {
  const q = new URLSearchParams();
  q.set("format", opts.format);
  if (opts.targetId) q.set("targetId", opts.targetId);
  if (typeof opts.limit === "number") q.set("limit", String(opts.limit));
  if (opts.profile) q.set("profile", opts.profile);
  return await fetchBrowserJson<SnapshotResult>(
    `${baseUrl}/snapshot?${q.toString()}`,
    {
      timeoutMs: 20000,
    },
  );
}

// Actions beyond the basic read-only commands live in client-actions.ts.