import assert from "node:assert/strict";
import { mkdtemp, mkdir, writeFile } from "node:fs/promises";
import { join } from "node:path";
import { tmpdir } from "node:os";
import { test } from "node:test";

import { loadSpotifyConfig, resolveSpotifyPaths } from "../src/config.js";

test("uses SPOTIFY_CONFIG_DIR when it exists", async () => {
  const root = await mkdtemp(join(tmpdir(), "spotify-config-"));
  await writeFile(join(root, "config.json"), JSON.stringify({ clientId: "id", redirectUri: "http://127.0.0.1:8888/callback" }));

  const paths = await resolveSpotifyPaths({ env: { SPOTIFY_CONFIG_DIR: root }, homeDir: "/missing-home" });

  assert.equal(paths.configDir, root);
  assert.equal(paths.configPath, join(root, "config.json"));
  assert.equal(paths.tokenPath, join(root, "token.json"));
});

test("loads and validates config json", async () => {
  const root = await mkdtemp(join(tmpdir(), "spotify-config-"));
  await writeFile(join(root, "config.json"), JSON.stringify({ clientId: "client", redirectUri: "http://127.0.0.1:8888/callback" }));

  const config = await loadSpotifyConfig({ env: { SPOTIFY_CONFIG_DIR: root }, homeDir: "/missing-home" });

  assert.deepEqual(config, {
    clientId: "client",
    redirectUri: "http://127.0.0.1:8888/callback"
  });
});

test("finds upward clawdbot credentials", async () => {
  const root = await mkdtemp(join(tmpdir(), "spotify-upward-"));
  const configDir = join(root, ".clawdbot", "credentials", "spotify");
  const nested = join(root, "a", "b");
  await mkdir(configDir, { recursive: true });
  await mkdir(nested, { recursive: true });

  const paths = await resolveSpotifyPaths({ env: {}, startDir: nested, homeDir: "/missing-home" });

  assert.equal(paths.configDir, configDir);
});

test("rejects missing config file", async () => {
  const root = await mkdtemp(join(tmpdir(), "spotify-config-"));

  await assert.rejects(
    () => loadSpotifyConfig({ env: { SPOTIFY_CONFIG_DIR: root }, homeDir: "/missing-home" }),
    /Spotify config not found/
  );
});