// Unit tests for desktop plugin-directory configuration (plain node).
const test = require("node:test");
const assert = require("node:assert");
const fs = require("fs");
const os = require("os");
const path = require("path");
const { ensurePluginDirConfigured } = require("./plugin-sync");

const tmp = () => fs.mkdtempSync(path.join(os.tmpdir(), "plugin-sync-"));

test("back-fills plugin_dir into an existing profile without it", () => {
  const dir = tmp();
  const cfg = path.join(dir, "config.yaml");
  fs.writeFileSync(cfg, "listen: 127.0.0.1:8787\ndefault_model: AUTO\nkeys:\n  - key: k\n    role: admin\n");
  const plugins = path.join(dir, "plugins");
  assert.equal(ensurePluginDirConfigured(cfg, plugins, null), "added");
  const out = fs.readFileSync(cfg, "utf-8");
  assert.match(out, /^plugin_dir: "/m);
  assert.match(out, /^listen: 127.0.0.1:8787$/m);
});

test("leaves a profile that already sets plugin_dir alone", () => {
  const dir = tmp();
  const cfg = path.join(dir, "config.yaml");
  const orig = 'plugin_dir: "/custom/plugins"\nlisten: ":1"\n';
  fs.writeFileSync(cfg, orig);
  assert.equal(ensurePluginDirConfigured(cfg, "/whatever", null), "present");
  assert.equal(fs.readFileSync(cfg, "utf-8"), orig);
});

test("missing config is not created by the back-fill", () => {
  const dir = tmp();
  const cfg = path.join(dir, "config.yaml");
  assert.equal(ensurePluginDirConfigured(cfg, path.join(dir, "p"), null), "absent");
  assert.equal(fs.existsSync(cfg), false);
});

test("desktop upgrade never modifies operator plugin files", () => {
  const dir = tmp();
  const plugins = path.join(dir, "plugins");
  fs.mkdirSync(plugins, { recursive: true });
  fs.writeFileSync(path.join(plugins, "channels.lua"), "OPERATOR FILE");
  fs.writeFileSync(path.join(plugins, "my-own.lua"), "MINE");
  // There is deliberately no version stamp and no upgrade synchronizer.
  assert.equal(fs.readFileSync(path.join(plugins, "channels.lua"), "utf-8"), "OPERATOR FILE");
  assert.equal(fs.readFileSync(path.join(plugins, "my-own.lua"), "utf-8"), "MINE");
  assert.equal(fs.readdirSync(dir).includes(".plugin-seed-version"), false);
});