"use strict";
// DSH Memory - background service worker.
// Единственное место, откуда идут HTTP-запросы к локальному мосту (CORS не мешает).

const BRIDGE_BASE = "http://127.0.0.1:8766";
const TOKEN_KEY = "dshmem-bridge-token";
const TIMEOUT_MS = 65000;

async function readToken() {
 const v = await chrome.storage.local.get(TOKEN_KEY);
 return v && v[TOKEN_KEY] ? String(v[TOKEN_KEY]) : "";
}

async function postTool(payload) {
 const token = await readToken();
 if (!token) return { ok: false, error: { code: "E_NO_TOKEN", message: "token not configured" } };
 const ctrl = new AbortController();
 const timer = setTimeout(function () { ctrl.abort(); }, TIMEOUT_MS);
 try {
 const res = await fetch(BRIDGE_BASE + "/tool", {
 method: "POST",
 headers: { "Content-Type": "application/json", Authorization: "Bearer " + token },
 body: JSON.stringify(payload),
 signal: ctrl.signal
 });
 const text = await res.text();
 let json = null;
 try { json = JSON.parse(text); } catch (e) { json = null; }
 if (!json) return { ok: false, error: { code: "E_BAD_RESPONSE", message: text.slice(0, 300) } };
 return json;
 } catch (e) {
 const msg = e && e.message ? e.message : String(e);
 return { ok: false, error: { code: "E_NETWORK", message: msg } };
 } finally {
 clearTimeout(timer);
 }
}

async function getHealth() {
 const token = await readToken();
 if (!token) return { ok: false, error: { code: "E_NO_TOKEN", message: "token not configured" } };
 try {
 const res = await fetch(BRIDGE_BASE + "/health", { headers: { Authorization: "Bearer " + token } });
 return await res.json();
 } catch (e) {
 const msg = e && e.message ? e.message : String(e);
 return { ok: false, error: { code: "E_NETWORK", message: msg } };
 }
}

chrome.runtime.onMessage.addListener(function (msg, sender, sendResponse) {
 if (!msg || typeof msg !== "object") return false;
 if (msg.type === "DSH_BRIDGE_CALL") { postTool(msg.payload).then(sendResponse); return true; }
 if (msg.type === "DSH_BRIDGE_HEALTH") { getHealth().then(sendResponse); return true; }
 return false;
});

console.log("dsh-memory background ready");