"""Platform Adapters for KB Pipeline

This module provides platform-specific adapters for content extraction
from various platforms (Bilibili, Zhihu, etc.).

Each adapter implements the PlatformAdapter interface:
- get_content_type: Identify content type from URL
- fetch_metadata: Fetch content metadata
- fetch_content: Fetch content body in Markdown format
- get_output_filename: Generate output filename
"""

from .base import PlatformAdapter
from .bilibili import BilibiliAdapter
from .zhihu import ZhihuAdapter

__all__ = [
    "PlatformAdapter",
    "BilibiliAdapter",
    "ZhihuAdapter",
]