"""
存储模块使用示例
演示常见的使用场景
"""
import sys
from pathlib import Path

# 添加项目根目录到路径
project_root = Path(__file__).parent.parent
sys.path.insert(0, str(project_root))

from src.core.storage import Storage


def example_basic_usage():
    """基本使用示例"""
    print("=" * 60)
    print("示例 1: 基本使用")
    print("=" * 60)

    storage = Storage()

    # 创建几条笔记
    storage.create(
        title="项目会议记录",
        content="讨论了新功能的设计方案",
        category="工作",
        tags=["会议", "重要"]
    )

    storage.create(
        title="Python 学习笔记",
        content="今天学习了列表推导式和装饰器",
        category="学习",
        tags=["Python", "编程"]
    )

    storage.create(
        title="周末计划",
        content="周六去图书馆，周日看电影",
        category="生活"
    )

    # 查看所有笔记
    all_notes = storage.get_all()
    print(f"\n总共有 {len(all_notes)} 条笔记:")
    for note in all_notes:
        print(f"  • {note['title']} [{note['category']}]")


def example_search():
    """搜索示例"""
    print("\n" + "=" * 60)
    print("示例 2: 搜索功能")
    print("=" * 60)

    storage = Storage()

    # 搜索包含"Python"的笔记
    results = storage.search("Python")
    print(f"\n搜索 'Python' 找到 {len(results)} 条结果:")
    for note in results:
        print(f"  • {note['title']}")

    # 搜索包含"会议"的笔记
    results = storage.search("会议")
    print(f"\n搜索 '会议' 找到 {len(results)} 条结果:")
    for note in results:
        print(f"  • {note['title']}")


def example_category_management():
    """分类管理示例"""
    print("\n" + "=" * 60)
    print("示例 3: 分类管理")
    print("=" * 60)

    storage = Storage()

    # 查看所有分类
    categories = storage.get_categories()
    print(f"\n所有分类 ({len(categories)} 个):")
    for category in categories:
        count = len(storage.get_by_category(category))
        print(f"  • {category} ({count} 条笔记)")

    # 按分类查看笔记
    print("\n工作分类下的笔记:")
    work_notes = storage.get_by_category("工作")
    for note in work_notes:
        print(f"  • {note['title']}")


def example_update_and_delete():
    """更新和删除示例"""
    print("\n" + "=" * 60)
    print("示例 4: 更新和删除")
    print("=" * 60)

    storage = Storage()

    # 获取第一条笔记
    all_notes = storage.get_all()
    if all_notes:
        first_note = all_notes[0]
        print(f"\n原始标题: {first_note['title']}")

        # 更新标题
        updated = storage.update(
            first_note['id'],
            title=f"{first_note['title']}（已编辑）"
        )
        print(f"更新后标题: {updated['title']}")

        # 删除最后一条笔记
        if len(all_notes) > 1:
            last_note = all_notes[-1]
            storage.delete(last_note['id'])
            print(f"\n已删除: {last_note['title']}")


def example_statistics():
    """统计信息示例"""
    print("\n" + "=" * 60)
    print("示例 5: 统计信息")
    print("=" * 60)

    storage = Storage()

    stats = storage.get_stats()
    print(f"\n📊 笔记统计:")
    print(f"  • 总记录数: {stats['total_records']}")
    print(f"  • 总分类数: {stats['total_categories']}")
    print(f"\n各分类记录数:")
    for category, count in stats['categories'].items():
        print(f"  • {category}: {count}")


def example_backup():
    """备份示例"""
    print("\n" + "=" * 60)
    print("示例 6: 数据备份")
    print("=" * 60)

    storage = Storage()

    # 导出所有数据
    data = storage.export_data()
    print(f"\n导出 {len(data)} 条记录")

    # 可以保存到备份文件
    backup_file = Path("/tmp/notes_backup.json")
    import json
    with open(backup_file, 'w', encoding='utf-8') as f:
        json.dump(data, f, ensure_ascii=False, indent=2)
    print(f"备份已保存到: {backup_file}")


if __name__ == "__main__":
    # 运行所有示例
    example_basic_usage()
    example_search()
    example_category_management()
    example_update_and_delete()
    example_statistics()
    example_backup()

    print("\n" + "=" * 60)
    print("所有示例运行完成！")
    print("=" * 60)