'''
 @author: kentzhang
 @date: 2019-06
'''

import json

from eth_abi import encode_single, decode_single


# print (encode_single('uint256', 12345) )
from eth_utils import function_signature_to_4byte_selector, \
 event_abi_to_log_topic, encode_hex, decode_hex

abitext = '(uint256,uint256)'
data = encode_single(abitext, [8899, 765])
# print (decode_single(abitext,data))
# print (encode_hex(data))
text = ""


def testjson():
 with open("AddrTableWorker.abi", 'r') as load_f:
 load_dict = json.load(load_f)
 for item in load_dict:
 if item["type"] != "constructor":
 print(item["name"], " is a ", item["type"])
 hash4 = function_signature_to_4byte_selector(item["name"] + '()')
 print("function hash4:", encode_hex(hash4))

 with open("abi_1.json", "w") as dump_f:
 json.dump(load_dict, dump_f)


def testarray():
 arraystr = "[1,2,3]"
 j = json.loads(arraystr)
 ja = [1, 2, 3]
 print(type(j))
 print(type(ja))
 print(j)


testarray()

logtext = '''
{ "logs":[
 {
 "address":"0x7029c502b4f824d19bd7921e9cb74ef92392fb1b",
 "data":"0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff00000000000000000000000000000000000000000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000e000000000000000000000000000000000000000000000000000000000000000036162630000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001f6e616d6520657869737473202c63616e27742063726561746520616761696e00",
 "topics":[
 "0xcb49392692818ccbce107b9d246d4729b350f32844060c37634542a16378a860"
 ]
 }
 ]
}
'''
logdict = json.loads(logtext)
data = logdict["logs"][0]["data"]
print(logdict["logs"][0]["topics"])

eventname = "createEvent(int256 ret, string name, uint256 balance, address city, string memo)"
eventABI = '''{
 "anonymous": false,
 "inputs": [
 {
 "indexed": false,
 "name": "ret",
 "type": "int256"
 },
 {
 "indexed": false,
 "name": "name",
 "type": "string"
 },
 {
 "indexed": false,
 "name": "balance",
 "type": "uint256"
 },
 {
 "indexed": false,
 "name": "city",
 "type": "address"
 },
 {
 "indexed": false,
 "name": "memo",
 "type": "string"
 }
 ],
 "name": "createEvent",
 "type": "event"
}'''

jsonobj = json.loads(eventABI)
print(jsonobj)

topicbytes = event_abi_to_log_topic(json.loads(eventABI))
print(encode_hex(topicbytes))
data = "0xffffffffffffffffffffffffffffffffffffffffff" \
 "ffffffffffffffffffffff" \
 "0000000000000000000000000" \
 "0000000000000000000000000000000000000a0000000000000" \
 "0000000000000000000000000000000000000000000" \
 "000000000000000000000000000000000000000000" \
 "0000000000000000000000000000000000000" \
 "0000000000000000000" \
 "0000000000000000000000000000000000000e00000000000000000000" \
 "000000000000000000000000000000000000000" \
 "0000036162630000000000000000000000000000000000000000000000000000" \
 "00000000000000000000000000000000" \
 "0000000000000000000000000000000000001f6e616d65206578697374" \
 "73202c63616e27742063726561746520616761696e00"
result = decode_single("(int256,string,uint256,address,string)", decode_hex(data))
print(result)

errorMsg = "0x08c379a00000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000e6e616d65206e6f74206d61746368000000000000000000000000000000000000"
errorMsg = errorMsg[10:]
print(errorMsg)
result = decode_single("(string)",decode_hex(errorMsg))
print("error result" ,result)