/**
 * 配置服务单元测试
 * 覆盖维度映射路径构建与嵌套键规整两项核心逻辑
 * 运行：npm test
 */
const test = require("node:test");
const assert = require("node:assert");
const { buildConfigPath, normalizeKey } = require("../src/services/configService");

// 构造测试用项目对象的辅助函数
function makeProject(overrides) {
  return {
    enableIdc: true,
    enableEnvironment: true,
    enableGroup: true,
    idcMapping: "path",
    environmentMapping: "path",
    groupMapping: "path",
    ...overrides,
  };
}

test("1-1 全部维度映射为 path 时，路径包含全部维度前缀", () => {
  const project = makeProject({});
  const config = { idc: "华北", environment: "dev", group: "用户模块", key: "db.host" };
  assert.strictEqual(buildConfigPath(project, config), "华北/dev/用户模块/db.host");
});

test("1-2 分组映射为 label 时，分组不进入路径", () => {
  const project = makeProject({ groupMapping: "label" });
  const config = { idc: "华北", environment: "dev", group: "用户模块", key: "db/host" };
  assert.strictEqual(buildConfigPath(project, config), "华北/dev/db/host");
});

test("1-3 全部维度映射为 label 时，路径仅含嵌套键", () => {
  const project = makeProject({ idcMapping: "label", environmentMapping: "label", groupMapping: "label" });
  const config = { idc: "华北", environment: "dev", group: "用户模块", key: "db/pool/max" };
  assert.strictEqual(buildConfigPath(project, config), "db/pool/max");
});

test("1-4 维度未启用时，即便映射为 path 也不进入路径", () => {
  const project = makeProject({ enableIdc: false });
  const config = { idc: "华北", environment: "dev", group: "用户模块", key: "db.host" };
  assert.strictEqual(buildConfigPath(project, config), "dev/用户模块/db.host");
});

test("2-1 规整键：去除首尾斜杠与空白", () => {
  assert.strictEqual(normalizeKey("  /db/host/  "), "db/host");
});

test("2-2 规整键：压缩连续斜杠并去除空段", () => {
  assert.strictEqual(normalizeKey("db//pool///max"), "db/pool/max");
});

test("2-3 规整键：空输入返回空字符串", () => {
  assert.strictEqual(normalizeKey("   "), "");
});