import { test } from "node:test";
import assert from "node:assert/strict";
import { join } from "node:path";
import { bootConfig, loadSystem } from "../src/config.mjs";
import { writeJson } from "../../business/tests/helpers.mjs";
import { fixture, tmp } from "./helpers.mjs";

test("bootConfig builds the broker's boot message for one business, with no trackers key when no project names one", (t) => {
  const f = fixture(tmp(t));
  const system = loadSystem({ env: f.env });
  const warnings = [];
  const boot = bootConfig({ system, businessId: "acme", env: f.env, warn: (w) => warnings.push(w) });
  assert.equal(boot.dataRoot, f.dataRoot);
  assert.deepEqual(Object.keys(boot.businesses), ["acme"]);
  assert.deepEqual(boot.launches, []);
  assert.deepEqual(boot.readers, ["acme"]);
  assert.equal("trackers" in boot, false);
  assert.match(warnings[0], /no project file sets tracker\.project/);
});

test("trackers come from the tracker.* variables of the one project that names a tracker project", (t) => {
  const root = tmp(t);
  const f = fixture(root);
  writeJson(join(root, "project", ".mosaic", "project.json"), { projectVersion: 1, id: "stack", vars: { "tracker.project": 12 } });
  const boot = bootConfig({ system: loadSystem({ env: f.env }), businessId: "acme", env: f.env });
  assert.deepEqual(boot.trackers, { acme: { baseUrl: "http://127.0.0.1:3456", project: 12, pollSeconds: 60, reconcileMinutes: 60 } });
});

test("with two projects, the one that sets tracker.project supplies the tracker and the other is no conflict", (t) => {
  const root = tmp(t);
  const f = fixture(root, "acme", (doc) => {
    doc.projects.web = { root: join(root, "web") };
    return doc;
  });
  writeJson(join(root, "project", ".mosaic", "project.json"), { projectVersion: 1, id: "stack", vars: { "tracker.project": 12 } });
  writeJson(join(root, "web", ".mosaic", "project.json"), { projectVersion: 1, id: "web", vars: {} });
  const boot = bootConfig({ system: loadSystem({ env: f.env }), businessId: "acme", env: f.env });
  assert.deepEqual(boot.trackers, { acme: { baseUrl: "http://127.0.0.1:3456", project: 12, pollSeconds: 60, reconcileMinutes: 60 } });
});

test("two projects that each name a tracker project refuse, since the boot shape holds one", (t) => {
  const root = tmp(t);
  const f = fixture(root, "acme", (doc) => {
    doc.projects.web = { root: join(root, "web") };
    return doc;
  });
  writeJson(join(root, "project", ".mosaic", "project.json"), { projectVersion: 1, id: "stack", vars: { "tracker.project": 12 } });
  writeJson(join(root, "web", ".mosaic", "project.json"), { projectVersion: 1, id: "web", vars: { "tracker.project": 13 } });
  assert.throws(() => bootConfig({ system: loadSystem({ env: f.env }), businessId: "acme", env: f.env }), (e) => e.exitCode === 3 && /stack, web each set tracker\.project/.test(e.message));
});

test("a business without tracker.baseUrl gets no trackers entry", (t) => {
  const f = fixture(tmp(t), "acme", (doc) => {
    delete doc.vars["tracker.baseUrl"];
    return doc;
  });
  const warnings = [];
  const boot = bootConfig({ system: loadSystem({ env: f.env }), businessId: "acme", env: f.env, warn: (w) => warnings.push(w) });
  assert.equal("trackers" in boot, false);
  assert.deepEqual(warnings, []);
});

test("an unknown business and a broken system config refuse with exit 3", (t) => {
  const f = fixture(tmp(t));
  assert.throws(() => bootConfig({ system: loadSystem({ env: f.env }), businessId: "nope", env: f.env }), (e) => e.exitCode === 3);
  assert.throws(() => loadSystem({ env: { ...f.env, MOSAIC_CONFIG: join(f.dataRoot, "missing.json") } }), (e) => e.exitCode === 3);
});