Add archived chat retriever

tests/test_arcparam.py

@@ -0,0 +1,26 @@
+import pytest
+from pytchat.core_multithread.parser import Parser
+import pytchat.config as config
+import requests, json
+from pytchat.paramgen import arcparam
+
+def test_arcparam_0(mocker):
+    param = arcparam.get("01234567890")
+    assert "op2w0wRyGjxDZzhhRFFvTE1ERXlNelExTmpjNE9UQWFFLXFvM2JrQkRRb0xNREV5TXpRMU5qYzRPVEFnQVElM0QlM0QoATAAOABAAEgEUhwIABAAGAAgACoOc3RhdGljY2hlY2tzdW1AAFgDYAFoAHIECAEQAHgA" == param
+
+
+def test_arcparam_1(mocker):
+    param = arcparam.get("01234567890", pos = 100000)
+    assert "op2w0wR3GjxDZzhhRFFvTE1ERXlNelExTmpjNE9UQWFFLXFvM2JrQkRRb0xNREV5TXpRMU5qYzRPVEFnQVElM0QlM0QogNDbw_QCMAA4AEAASANSHAgAEAAYACAAKg5zdGF0aWNjaGVja3N1bUAAWANgAWgAcgQIARAAeAA%3D" == param
+
+def test_arcparam_2(mocker):
+    param = arcparam.get("SsjCnHOk-Sk")
+    url=f"https://www.youtube.com/live_chat_replay/get_live_chat_replay?continuation={param}&pbj=1"
+    resp = requests.Session().get(url,headers = config.headers)
+    jsn = json.loads(resp.text)
+    parser = Parser()
+    metadata , chatdata = parser.parse(jsn)
+    test_id = chatdata[0]["replayChatItemAction"]["actions"][0]["addChatItemAction"]["item"]["liveChatTextMessageRenderer"]["id"]
+    print(test_id)
+    assert "CjoKGkNMYXBzZTdudHVVQ0Zjc0IxZ0FkTnFnQjVREhxDSnlBNHV2bnR1VUNGV0dnd2dvZDd3NE5aZy0w" == test_id
+