import { describe, expect, test } from "bun:test";
import { applyOperator, checkBodyExpect, evaluateJsonPath } from "../../../src/server/checker/body-expect";

describe("evaluateJsonPath", () => {
  const obj = {
    status: "ok",
    code: 0,
    active: true,
    error: null,
    data: {
      count: 42,
      items: [{ name: "a" }, { name: "b" }],
      nested: { deep: "value" },
    },
    emptyObj: {},
    emptyArr: [],
  };

  test("简单字段访问", () => {
    expect(evaluateJsonPath(obj, "$.status")).toBe("ok");
    expect(evaluateJsonPath(obj, "$.code")).toBe(0);
    expect(evaluateJsonPath(obj, "$.active")).toBe(true);
    expect(evaluateJsonPath(obj, "$.error")).toBeNull();
  });

  test("嵌套对象访问", () => {
    expect(evaluateJsonPath(obj, "$.data.count")).toBe(42);
    expect(evaluateJsonPath(obj, "$.data.nested.deep")).toBe("value");
  });

  test("数组索引访问", () => {
    expect(evaluateJsonPath(obj, "$.data.items[0].name")).toBe("a");
    expect(evaluateJsonPath(obj, "$.data.items[1].name")).toBe("b");
  });

  test("路径不存在返回 undefined", () => {
    expect(evaluateJsonPath(obj, "$.notExist")).toBeUndefined();
    expect(evaluateJsonPath(obj, "$.data.notExist")).toBeUndefined();
    expect(evaluateJsonPath(obj, "$.data.items[99]")).toBeUndefined();
  });

  test("空对象和空数组", () => {
    expect(evaluateJsonPath(obj, "$.emptyObj")).toEqual({});
    expect(evaluateJsonPath(obj, "$.emptyArr")).toEqual([]);
  });

  test("非 $ 开头路径返回 undefined", () => {
    expect(evaluateJsonPath(obj, "status")).toBeUndefined();
    expect(evaluateJsonPath(obj, ".status")).toBeUndefined();
  });

  test("null 对象上访问", () => {
    expect(evaluateJsonPath(null, "$.any")).toBeUndefined();
  });
});

describe("applyOperator", () => {
  test("equals 操作符", () => {
    expect(applyOperator("ok", { equals: "ok" })).toBe(true);
    expect(applyOperator("ok", { equals: "error" })).toBe(false);
    expect(applyOperator(42, { equals: 42 })).toBe(true);
    expect(applyOperator(42, { equals: 41 })).toBe(false);
    expect(applyOperator(null, { equals: null })).toBe(true);
    expect(applyOperator(true, { equals: true })).toBe(true);
  });

  test("contains 操作符", () => {
    expect(applyOperator("hello world", { contains: "hello" })).toBe(true);
    expect(applyOperator("hello world", { contains: "missing" })).toBe(false);
    expect(applyOperator(12345, { contains: "23" })).toBe(true);
  });

  test("match 操作符", () => {
    expect(applyOperator("v2.1.0", { match: "\\d+\\.\\d+\\.\\d+" })).toBe(true);
    expect(applyOperator("v2.1", { match: "\\d+\\.\\d+\\.\\d+" })).toBe(false);
    expect(applyOperator("abc123", { match: "^\\w+\\d+$" })).toBe(true);
  });

  test("empty 操作符", () => {
    expect(applyOperator("", { empty: true })).toBe(true);
    expect(applyOperator(null, { empty: true })).toBe(true);
    expect(applyOperator(undefined, { empty: true })).toBe(true);
    expect(applyOperator([], { empty: true })).toBe(true);
    expect(applyOperator({}, { empty: true })).toBe(true);
    expect(applyOperator("ok", { empty: true })).toBe(false);
    expect(applyOperator([1, 2], { empty: false })).toBe(true);
    expect(applyOperator([], { empty: false })).toBe(false);
  });

  test("exists 操作符", () => {
    expect(applyOperator("ok", { exists: true })).toBe(true);
    expect(applyOperator(null, { exists: true })).toBe(true);
    expect(applyOperator(undefined, { exists: true })).toBe(false);
    expect(applyOperator(undefined, { exists: false })).toBe(true);
    expect(applyOperator("ok", { exists: false })).toBe(false);
  });

  test("gte 操作符", () => {
    expect(applyOperator(10, { gte: 5 })).toBe(true);
    expect(applyOperator(5, { gte: 5 })).toBe(true);
    expect(applyOperator(3, { gte: 5 })).toBe(false);
    expect(applyOperator("10", { gte: 5 })).toBe(true);
  });

  test("lte 操作符", () => {
    expect(applyOperator(3, { lte: 5 })).toBe(true);
    expect(applyOperator(5, { lte: 5 })).toBe(true);
    expect(applyOperator(10, { lte: 5 })).toBe(false);
  });

  test("gt 操作符", () => {
    expect(applyOperator(10, { gt: 5 })).toBe(true);
    expect(applyOperator(5, { gt: 5 })).toBe(false);
  });

  test("lt 操作符", () => {
    expect(applyOperator(3, { lt: 5 })).toBe(true);
    expect(applyOperator(5, { lt: 5 })).toBe(false);
  });

  test("多操作符 AND 组合", () => {
    expect(applyOperator(7, { gte: 5, lte: 10 })).toBe(true);
    expect(applyOperator(3, { gte: 5, lte: 10 })).toBe(false);
    expect(applyOperator(15, { gte: 5, lte: 10 })).toBe(false);
  });
});

describe("checkBodyExpect", () => {
  test("无 body config 返回 true", () => {
    expect(checkBodyExpect("anything", undefined)).toBe(true);
  });

  test("contains 匹配", () => {
    expect(checkBodyExpect("hello world", { contains: "hello" })).toBe(true);
    expect(checkBodyExpect("hello world", { contains: "missing" })).toBe(false);
  });

  test("regex 匹配", () => {
    expect(checkBodyExpect("status: ok", { regex: "ok" })).toBe(true);
    expect(checkBodyExpect("status: error", { regex: "ok" })).toBe(false);
  });

  test("json 简单等值匹配", () => {
    const body = JSON.stringify({ status: "ok", code: 0 });
    expect(checkBodyExpect(body, { json: { "$.status": "ok" } })).toBe(true);
    expect(checkBodyExpect(body, { json: { "$.code": 0 } })).toBe(true);
    expect(checkBodyExpect(body, { json: { "$.status": "error" } })).toBe(false);
  });

  test("json 操作符匹配", () => {
    const body = JSON.stringify({ count: 42, version: "v2.1.0", message: "success" });
    expect(checkBodyExpect(body, { json: { "$.count": { gte: 10 } } })).toBe(true);
    expect(checkBodyExpect(body, { json: { "$.version": { match: "\\d+\\.\\d+\\.\\d+" } } })).toBe(true);
    expect(checkBodyExpect(body, { json: { "$.message": { contains: "success" } } })).toBe(true);
    expect(checkBodyExpect(body, { json: { "$.count": { gte: 100 } } })).toBe(false);
  });

  test("json 路径不存在", () => {
    const body = JSON.stringify({ status: "ok" });
    expect(checkBodyExpect(body, { json: { "$.notExist": "value" } })).toBe(false);
  });

  test("json 解析失败", () => {
    expect(checkBodyExpect("not json", { json: { "$.status": "ok" } })).toBe(false);
  });

  test("css textContent 匹配", () => {
    const html = "<div id='health'>OK</div><span class='ver'>1.0</span>";
    expect(checkBodyExpect(html, { css: { "div#health": "OK" } })).toBe(true);
    expect(checkBodyExpect(html, { css: { "span.ver": "1.0" } })).toBe(true);
    expect(checkBodyExpect(html, { css: { "div#health": "ERROR" } })).toBe(false);
  });

  test("css 选择器无匹配元素", () => {
    const html = "<div>OK</div>";
    expect(checkBodyExpect(html, { css: { "span.missing": "OK" } })).toBe(false);
  });

  test("css attr 提取", () => {
    const html = '<meta name="version" content="2.0.1"><link rel="icon" href="/favicon.ico">';
    expect(checkBodyExpect(html, { css: { 'meta[name="version"]': { attr: "content", equals: "2.0.1" } } })).toBe(true);
    expect(
      checkBodyExpect(html, { css: { 'meta[name="version"]': { attr: "content", match: "\\d+\\.\\d+\\.\\d+" } } }),
    ).toBe(true);
    expect(checkBodyExpect(html, { css: { 'link[rel="icon"]': { attr: "href", contains: "favicon" } } })).toBe(true);
  });

  test("css exists 检查", () => {
    const html = "<div id='test'>OK</div>";
    expect(checkBodyExpect(html, { css: { "div#test": { exists: true } } })).toBe(true);
    expect(checkBodyExpect(html, { css: { "span#missing": { exists: false } } })).toBe(true);
    expect(checkBodyExpect(html, { css: { "div#test": { exists: false } } })).toBe(false);
  });

  test("xpath 节点文本匹配", () => {
    const xml = "<root><status>ok</status><code>200</code></root>";
    expect(checkBodyExpect(xml, { xpath: { "/root/status/text()": "ok" } })).toBe(true);
    expect(checkBodyExpect(xml, { xpath: { "/root/status/text()": "error" } })).toBe(false);
  });

  test("xpath 无匹配节点", () => {
    const xml = "<root><status>ok</status></root>";
    expect(checkBodyExpect(xml, { xpath: { "/root/missing/text()": "ok" } })).toBe(false);
  });

  test("xpath 包含匹配", () => {
    const html = "<html><body><div id='msg'>success</div></body></html>";
    expect(checkBodyExpect(html, { xpath: { "//div[@id='msg']/text()": "success" } })).toBe(true);
  });

  test("多种 body 方法 AND 组合", () => {
    const body = JSON.stringify({ status: "healthy", count: 5 });
    expect(
      checkBodyExpect(body, {
        contains: "healthy",
        json: { "$.status": "healthy", "$.count": { gte: 1 } },
      }),
    ).toBe(true);
  });

  test("多种 body 方法部分失败", () => {
    const body = JSON.stringify({ status: "error" });
    expect(
      checkBodyExpect(body, {
        contains: "healthy",
        json: { "$.status": "error" },
      }),
    ).toBe(false);
  });
});