From 5d86fb4b71d3e00ebed4287a8119da4e8e6fe750 Mon Sep 17 00:00:00 2001
From: taizan-hokuto <55448286+taizan-hokuto@users.noreply.github.com>
Date: Sat, 4 Jan 2020 09:28:44 +0900
Subject: [PATCH] Fix  parameter switching and tests

---
 pytchat/paramgen/arcparam.py | 19 ++-----------------
 tests/test_arcparam.py       | 11 +++++++----
 2 files changed, 9 insertions(+), 21 deletions(-)

diff --git a/pytchat/paramgen/arcparam.py b/pytchat/paramgen/arcparam.py
index ba725b0..1d80ae1 100644
--- a/pytchat/paramgen/arcparam.py
+++ b/pytchat/paramgen/arcparam.py
@@ -52,33 +52,18 @@ def _nval(val):
     buf += val.to_bytes(1,'big')
     return buf
 
-
-def _tzparity(video_id,times):
-    t=0
-    for i,s in enumerate(video_id):
-        ss = ord(s)
-        if(ss % 2 == 0):
-            t += ss*(12-i)
-        else:
-            t ^= ss*i
-
-    return ((times^t) % 2).to_bytes(1,'big')
-
-
 def _build(video_id, seektime, topchatonly = False):
     switch_01 = b'\x04' if topchatonly else b'\x01'
-
-
     if seektime < 0:
         times =_nval(0)
         switch = b'\x04'       
-    if seektime == 0:  
+    elif seektime == 0:  
         times =_nval(1)
         switch = b'\x03'       
     else:
         times =_nval(int(seektime*1000000))
         switch = b'\x03'
-    parity = _tzparity(video_id, seektime)
+    parity = b'\x00'
 
     header_magic= b'\xA2\x9D\xB0\xD3\x04'
     sep_0       = b'\x1A'
diff --git a/tests/test_arcparam.py b/tests/test_arcparam.py
index e53eda3..e30466e 100644
--- a/tests/test_arcparam.py
+++ b/tests/test_arcparam.py
@@ -5,13 +5,13 @@ import requests, json
 from pytchat.paramgen import arcparam
 
 def test_arcparam_0(mocker):
-    param = arcparam.getparam("01234567890")
-    assert "op2w0wRyGjxDZzhhRFFvTE1ERXlNelExTmpjNE9UQWFFLXFvM2JrQkRRb0xNREV5TXpRMU5qYzRPVEFnQVElM0QlM0QoATAAOABAAEgEUhwIABAAGAAgACoOc3RhdGljY2hlY2tzdW1AAFgDYAFoAXIECAEQAXgA" == param
+    param = arcparam.getparam("01234567890",-1)
+    assert "op2w0wRyGjxDZzhhRFFvTE1ERXlNelExTmpjNE9UQWFFLXFvM2JrQkRRb0xNREV5TXpRMU5qYzRPVEFnQVElM0QlM0QoADAAOABAAEgEUhwIABAAGAAgACoOc3RhdGljY2hlY2tzdW1AAFgDYAFoAHIECAEQAHgA" == param
 
 
 def test_arcparam_1(mocker):
     param = arcparam.getparam("01234567890", seektime = 100000)
-    assert "op2w0wR3GjxDZzhhRFFvTE1ERXlNelExTmpjNE9UQWFFLXFvM2JrQkRRb0xNREV5TXpRMU5qYzRPVEFnQVElM0QlM0QogNDbw_QCMAA4AEAASANSHAgAEAAYACAAKg5zdGF0aWNjaGVja3N1bUAAWANgAWgBcgQIARABeAA%3D" == param
+    assert "op2w0wR3GjxDZzhhRFFvTE1ERXlNelExTmpjNE9UQWFFLXFvM2JrQkRRb0xNREV5TXpRMU5qYzRPVEFnQVElM0QlM0QogNDbw_QCMAA4AEAASANSHAgAEAAYACAAKg5zdGF0aWNjaGVja3N1bUAAWANgAWgAcgQIARAAeAA%3D" == param
 
 def test_arcparam_2(mocker):
     param = arcparam.getparam("SsjCnHOk-Sk")
@@ -23,4 +23,7 @@ def test_arcparam_2(mocker):
     test_id = chatdata[0]["addChatItemAction"]["item"]["liveChatTextMessageRenderer"]["id"]
     print(test_id)
     assert "CjoKGkNMYXBzZTdudHVVQ0Zjc0IxZ0FkTnFnQjVREhxDSnlBNHV2bnR1VUNGV0dnd2dvZDd3NE5aZy0w" == test_id
-    
\ No newline at end of file
+
+def test_arcparam_3(mocker):
+    param = arcparam.getparam("01234567890")
+    assert "op2w0wRyGjxDZzhhRFFvTE1ERXlNelExTmpjNE9UQWFFLXFvM2JrQkRRb0xNREV5TXpRMU5qYzRPVEFnQVElM0QlM0QoATAAOABAAEgDUhwIABAAGAAgACoOc3RhdGljY2hlY2tzdW1AAFgDYAFoAHIECAEQAHgA" == param