53 lines
1.8 KiB
Python
53 lines
1.8 KiB
Python
# 第 2-9 课完整示例：多文件任务管理程序入口
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#
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# 直接运行本文件会创建当前课程目录下的 task_data/tasks.json。
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# 该文件是练习数据，已通过 .gitignore 排除，不会被提交到 Git。
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from pathlib import Path
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from task_service import add_task, build_task_report, complete_task, generate_pending_tasks
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from task_store import load_tasks, save_tasks
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LESSON_DIR = Path(__file__).parent
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DATA_FILE = LESSON_DIR / "task_data" / "tasks.json"
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def print_task(task: dict[str, object]) -> None:
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"""按统一格式输出一条任务。"""
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status_text = "已完成" if task["completed"] else "未完成"
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print(f"[{task['id']}] {task['title']}｜优先级：{task['priority']}｜状态：{status_text}")
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def main() -> None:
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"""按照读取、修改、保存和汇总的顺序运行完整示例。"""
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tasks = load_tasks(DATA_FILE)
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print(f"读取到 {len(tasks)} 条已有任务。")
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try:
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first_task = add_task(tasks, "整理本课学习笔记", "高")
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second_task = add_task(tasks, "运行任务管理程序", "中")
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except ValueError as error:
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# 本示例会传入合法标题；这里演示业务错误的安全处理方式。
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print(f"添加任务失败：{error}")
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return
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complete_task(tasks, int(first_task["id"]))
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save_tasks(DATA_FILE, tasks)
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print("\n本次新增的任务：")
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print_task(first_task)
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print_task(second_task)
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print("\n未完成任务：")
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for task in generate_pending_tasks(tasks):
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print_task(task)
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report = build_task_report(tasks)
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print("\n任务汇总：")
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print(f"全部：{report['total']} 条，已完成：{report['completed']} 条，未完成：{report['pending']} 条。")
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if __name__ == "__main__":
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main()
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