import { describe, it, expect } from "bun:test";
import { parseTasks } from "../../src/core/task-parser.ts";

describe("parseTasks", () => {
  it("解析标准 checkbox 格式", () => {
    const content = `- [ ] 任务一
- [ ] 任务二
- [x] 任务三`;
    const tasks = parseTasks(content);
    expect(tasks).toHaveLength(3);
    expect(tasks[0]).toEqual({ checked: false, text: "任务一" });
    expect(tasks[1]).toEqual({ checked: false, text: "任务二" });
    expect(tasks[2]).toEqual({ checked: true, text: "任务三" });
  });

  it("跳过非 checkbox 行", () => {
    const content = `# 标题
一些描述
- [ ] 任务一
普通文本
- [x] 任务二`;
    const tasks = parseTasks(content);
    expect(tasks).toHaveLength(2);
  });

  it("空内容返回空数组", () => {
    expect(parseTasks("")).toEqual([]);
    expect(parseTasks("# 只有标题")).toEqual([]);
  });

  it("支持大写 X 标记", () => {
    const content = `- [X] 大写标记`;
    const tasks = parseTasks(content);
    expect(tasks).toHaveLength(1);
    expect(tasks[0].checked).toBe(true);
  });

  it("支持缩进的 checkbox", () => {
    const content = `  - [ ] 缩进任务`;
    const tasks = parseTasks(content);
    expect(tasks).toHaveLength(1);
    expect(tasks[0].text).toBe("缩进任务");
  });

  it("计算已完成和总数", () => {
    const content = `- [x] 已完成
- [ ] 未完成
- [x] 另一个完成`;
    const tasks = parseTasks(content);
    const completed = tasks.filter((t) => t.checked).length;
    expect(completed).toBe(2);
    expect(tasks.length).toBe(3);
  });
});