Implement mining

pytchat/tool/mining/patch.py

@@ -0,0 +1,27 @@
+from . import parser
+from . block import Block
+from typing import NamedTuple
+
+class Patch(NamedTuple):
+    """
+    Patch represents chunk of chat data
+    which is fetched by asyncdl.download_patch._fetch().
+    """
+    chats : list = []
+    continuation : str = None
+    seektime : float = None
+    first : int = None
+    last : int = None
+
+def fill(block:Block, patch:Patch):
+    if patch.last < block.end:
+        set_patch(block, patch)
+        return
+    block.continuation = None
+
+def set_patch(block:Block, patch:Patch):
+    block.continuation = patch.continuation
+    block.chat_data.extend(patch.chats)
+    block.last = patch.seektime
+    block.seektime = patch.seektime       
+