import assert from "node:assert/strict";
import fs from "node:fs";
import os from "node:os";
import path from "node:path";
import test from "node:test";

process.env.APP_MODE = "windows";
process.env.DATA_DIR = fs.mkdtempSync(path.join(os.tmpdir(), "vpn-proxy-windows-test-"));
process.env.SING_BOX_CACHE = path.join(process.env.DATA_DIR, "cache.db");
process.env.PROXY_PORT = "1080";
process.env.PROXY_BIND_IP = "127.0.0.1";

const { settings } = await import(
  `../../src/server/config.js?windows-mode=${Date.now()}`
);
const { buildGatewayConfig } = await import(
  `../../src/server/singbox.js?windows-mode=${Date.now()}`
);

const subscriptionConfig = {
  outbounds: [
    {
      type: "vless",
      tag: "win-vpn",
      server: "vpn.example.test",
      server_port: 443,
      uuid: "00000000-0000-4000-8000-000000000000",
      tls: { enabled: true },
    },
  ],
  customRules: [],
};

test("settings accepts APP_MODE=windows", () => {
  assert.equal(settings.appMode, "windows");
  assert.equal(settings.proxyPort, 1080);
  assert.equal(settings.bindIp, "127.0.0.1");
});

test("windows mode exposes only local mixed proxy inbound", () => {
  const config = buildGatewayConfig(subscriptionConfig, "win-vpn");

  assert.deepEqual(config.inbounds.map((inbound) => inbound.tag), ["mixed-in"]);
  assert.equal(config.inbounds[0].type, "mixed");
  assert.equal(config.inbounds[0].listen, "127.0.0.1");
  assert.equal(config.inbounds[0].listen_port, 1080);
});

test("windows mode routes mixed proxy to selected VPN outbound", () => {
  const config = buildGatewayConfig(subscriptionConfig, "win-vpn");

  assert.deepEqual(config.route.rule_set, []);
  assert.deepEqual(config.route.rules, [
    { inbound: ["mixed-in"], outbound: "win-vpn" },
  ]);
  assert.deepEqual(config.outbounds.map((outbound) => outbound.tag), [
    "win-vpn",
    "direct",
    "block",
  ]);
});