import hashlib
import datetime


class TTBlockCoin:
    def __init__(self,
                 index,  # 索引
                 timeStamp,  # 時間戳
                 data,  # 交易資料
                 lastHash):  # 上一個塊的hash值
        self.index = index
        self.timeStamp = timeStamp
        self.data = data
        self.lastHash = lastHash
        self.selfHash = self.hash_TTBlockCoin()

    # 產生加密串,產生一個加密串就是產生一個幣
 

    def hash_TTBlockCoin(self):
        # sha = hashlib.sha256()
        # sha = hashlib.sha512()
        sha = hashlib.md5()
        datastr = str(self.index) + str(self.timeStamp) + str(self.data) + str(self.lastHash)
        sha.update(datastr.encode("utf-8"))
        return sha.hexdigest()


def
 
 create_first_TTBlock():  # 創造一個創世區塊
    return TTBlockCoin(0, datetime.datetime.now(), "TT COIN", "tt001")


def create_money_TTBlock(last_block):  # 區塊鏈的其他塊  last_block 上一個區塊
    this_index = last_block.index + 1
    this_timestamp = datetime.datetime.now()
    this_data = "taotao coin" + str(this_index)  # 模擬交易資料
 

    last_hash = last_block.selfHash    #lastHash =上一個block的selfHash
    return TTBlockCoin(this_index,
                         this_timestamp,
                         this_data,
                         last_hash)


TTBlockCoins = [create_first_TTBlock()]  # 區塊鏈連結串列
nums = 100
head_block = TTBlockCoins[0]
print("創世區塊TT幣來啦")
print(head_block.index, head_block.data, head_block.timeStamp, 
      head_block.lastHash, head_block.selfHash)
for i in range(nums):
    ttBlock_another = create_money_TTBlock(head_block)  # 根據第一個區塊創造下一個區塊
    TTBlockCoins.append(ttBlock_another)  # 區塊加入鏈
    head_block = ttBlock_another
    print(ttBlock_another.index, ttBlock_another.data, 
          ttBlock_another.timeStamp, ttBlock_another.lastHash,
          ttBlock_another.selfHash)