/**
 * 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, validateEditValue, validateStructure } = 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("   "), "");
});

test("3-1 必填且存在：空值校验失败", () => {
  const cfg = { key: "a", value: "  ", type: "string", valueRange: "", required: true, exists: true };
  assert.throws(() => validateEditValue(cfg), /必填项/);
});

test("3-2 必填且存在：非空值通过", () => {
  const cfg = { key: "a", value: "x", type: "string", valueRange: "", required: true, exists: true };
  assert.doesNotThrow(() => validateEditValue(cfg));
});

test("3-3 必填但不存在：允许空值", () => {
  const cfg = { key: "a", value: "", type: "string", valueRange: "", required: true, exists: false };
  assert.doesNotThrow(() => validateEditValue(cfg));
});

test("3-4 不存在：跳过类型与范围校验", () => {
  const cfg = { key: "a", value: "not-number", type: "number", valueRange: "", required: false, exists: false };
  assert.doesNotThrow(() => validateEditValue(cfg));
});

test("3-5 存在且值类型错误：校验失败", () => {
  const cfg = { key: "a", value: "abc", type: "number", valueRange: "", required: false, exists: true };
  assert.throws(() => validateEditValue(cfg), /有效的数字/);
});

test("3-6 存在且不符合正则范围：校验失败", () => {
  const cfg = { key: "phone", value: "123", type: "string", valueRange: "/^1[3-9]\\d{9}$/", required: false, exists: true };
  assert.throws(() => validateEditValue(cfg), /格式要求/);
});

test("3-7 必填且 json 值为空数组：不算空值", () => {
  const cfg = { key: "a", value: [], type: "json", valueRange: "", required: true, exists: true };
  assert.doesNotThrow(() => validateEditValue(cfg));
});

test("3-8 必填且值为 0 / false：不算空值", () => {
  assert.doesNotThrow(() => validateEditValue({ key: "a", value: 0, type: "number", valueRange: "", required: true, exists: true }));
  assert.doesNotThrow(() => validateEditValue({ key: "a", value: false, type: "boolean", valueRange: "", required: true, exists: true }));
});

test("4-1 默认值类型校验：number 类型默认值必须为数字", () => {
  const project = makeProject({});
  const base = { key: "a", type: "number", description: "d", idc: "x", environment: "y", group: "z" };
  assert.throws(() => validateStructure({ ...base, defaultValue: "abc" }, project), /默认值不符合类型/);
  assert.doesNotThrow(() => validateStructure({ ...base, defaultValue: "42" }, project));
  assert.doesNotThrow(() => validateStructure({ ...base, defaultValue: 0 }, project));
});

test("4-2 默认值类型校验：空默认值不做校验", () => {
  const project = makeProject({});
  const base = { key: "a", type: "number", description: "d", idc: "x", environment: "y", group: "z" };
  assert.doesNotThrow(() => validateStructure({ ...base, defaultValue: "" }, project));
  assert.doesNotThrow(() => validateStructure({ ...base }, project));
});

test("4-3 默认值类型校验：json 类型默认值需为合法 JSON", () => {
  const project = makeProject({});
  const base = { key: "a", type: "json", description: "d", idc: "x", environment: "y", group: "z" };
  assert.doesNotThrow(() => validateStructure({ ...base, defaultValue: "{\"a\":1}" }, project));
  assert.throws(() => validateStructure({ ...base, defaultValue: "{bad json}" }, project), /默认值不符合类型/);
});

test("4-4 默认值范围校验：默认值需符合值范围约束", () => {
  const project = makeProject({});
  const base = { key: "a", type: "string", description: "d", idc: "x", environment: "y", group: "z", valueRange: "/^1[3-9]\\d{9}$/" };
  assert.doesNotThrow(() => validateStructure({ ...base, defaultValue: "13800138000" }, project));
  assert.throws(() => validateStructure({ ...base, defaultValue: "12345" }, project), /默认值校验失败/);
});

test("4-5 默认值范围校验：number 区间默认值", () => {
  const project = makeProject({});
  const base = { key: "a", type: "number", description: "d", idc: "x", environment: "y", group: "z", valueRange: "1-100" };
  assert.doesNotThrow(() => validateStructure({ ...base, defaultValue: "50" }, project));
  assert.throws(() => validateStructure({ ...base, defaultValue: "500" }, project), /默认值校验失败/);
});

test("4-6 默认值类型校验：boolean false 为合法默认值", () => {
  const project = makeProject({});
  const base = { key: "a", type: "boolean", description: "d", idc: "x", environment: "y", group: "z" };
  assert.doesNotThrow(() => validateStructure({ ...base, defaultValue: false }, project));
});

test("4-7 默认值判断：纯空白默认值视为未填写", () => {
  const project = makeProject({});
  const base = { key: "a", type: "number", description: "d", idc: "x", environment: "y", group: "z" };
  assert.doesNotThrow(() => validateStructure({ ...base, defaultValue: "   " }, project));
});