ganache | 简介 | 犀牛的博客

ganache 可以分叉 evm 链。

为什么要分叉 evm 链

有的时候，我们需要部署合约，然后进行测试，来判断合约的有效性。

但是，我们为什么不部署在测试网呢？

这是因为，如果我们要部署闪电贷之类的合约，肯定要依附于 dex 的各种数据，但是，测试网没有这些生态。所以，我们硬分叉之后的网络，在具备这些生态数据的同时，还具备测试账号。

非常好用。这里说一下 ganache 分叉主网的一些特性。

分叉后，你本地相当于有主网网络了
当你和本地网络进行写交互的时候，就会出块，否则不出块
eth 和 bsc 都可以「其他我没测试」

使用

ganache-cli命令行参数说明

安装

npm install -g ganache-cli

启动

~$ ganache-cli

启动选项

下面可能有的横杠是两道。

-a 或 –accounts：指定启动时要创建的测试账户数量。
-e 或 –defaultBalanceEther：分配给每个测试账户的ether数量，默认值为100。
-b 或r –blockTime：指定自动挖矿的blockTime，以秒为单位。默认值为0，表示不进行自动挖矿。
-d 或 –deterministic：基于预定的助记词（mnemonic）生成固定的测试账户地址。
-n 或 –secure：默认锁定所有测试账户，有利于进行第三方交易签名。
-m 或 –mnemonic：用于生成测试账户地址的助记词。
-p 或 –port：设置监听端口，默认值为8545。
-h 或 –hostname：设置监听主机，默认值同NodeJS的server.listen()。
-s 或 –seed：设置生成助记词的种子。.
-g 或 –gasPrice：设定Gas价格，默认值为20000000000。
-l 或 –gasLimit：设定Gas上限，默认值为90000。
-f 或 –fork：从一个运行中的以太坊节点客户端软件的指定区块分叉。输入值应当是该节点旳HTTP地址和端口，例如http://localhost:8545。可选使用@标记来指定具体区块，例如：http://localhost:8545@1599200。
-i 或–networkId：指定网络id。默认值为当前时间，或使用所分叉链的网络id`。
–db：设置保存链数据的目录。如果该路径中已经有链数据，ganache-cli`将用它初始化链而不是重新创建。
`–debug：输出VM操作码，用于调试。
–mem：输出ganache-cli`内存使用统计信息，这将替代标准的输出信息。
–noVMErrorsOnRPCResponse：不把失败的交易作为RPC错误发送。开启这个标志使错误报告方式兼容其他的节点客户端，例如geth和Parity。

特殊选项

–account：指定账户私钥和账户余额来创建初始测试账户。可多次设置：

$ ganache-cli --account="<privatekey>,balance" [--account="<privatekey>,balance"]

注意私钥长度为64字符，必须使用0x前缀的16进制字符串。账户余额可以是整数，也可以是0x前缀的17进制字符串，单位为wei。

使用–account选项时，不会自动创建HD钱包。

-u 或 –unlock：解锁指定账户，或解锁指定序号的账户。可以设置多次。当与–secure选项同时使用时，这个选项将改变指定账户的锁定状态：

$ ganache-cli --secure --unlock "0x1234..." --unlock "0xabcd..."

也可以指定一个数字，按序号解锁账号：

$ ganache-cli --secure -u 0 -u 1

存在的坑

分叉 bsc 之后的测试账号，它的 bnb 不能兑换成 wbnb

如何分叉bsc主网，模拟主网账号

经过我测试，测试账号确实不能用，所以我都是解锁一个主网上的账户，比如，先在主网一个账户上充上 bnb，然后

ganache-cli --fork https://bsc-dataseed.binance.org/  --unlock "主网账号"

在后面测试中，使用这个账号进行测试。

ps: 2022-7-8

使用下面的连接更稳定

ganache-cli --fork.url wss://bsc-mainnet.nodereal.io/ws/v1/63ef6cb

测试账号，可以通过 dex 的 swapExactETHForTokens 将 bnb 转化为任意 BRC20，包括 WBNB。

代码

下面，我分叉了 bsc ，然后，进行 pancakeswap 操作。

自动计算池子深度
自动进行 approve 绑定
自动进行 swap 操作，看是否符合量化 coin 要求

ps: 2022-7-10

下面探寻哪些币符合量化的方式有一点过时了，请参考最新的博客。

defi | 如何快速搜寻可以进行 flashswap 的币种

import time

from web3 import Web3

from Config.contract import BSC_BUSD
from coin.coin import bsc

pancake_abi_Factory = """
[{"inputs":[{"internalType":"address","name":"_feeToSetter","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"token0","type":"address"},{"indexed":true,"internalType":"address","name":"token1","type":"address"},{"indexed":false,"internalType":"address","name":"pair","type":"address"},{"indexed":false,"internalType":"uint256","name":"","type":"uint256"}],"name":"PairCreated","type":"event"},{"constant":true,"inputs":[],"name":"INIT_CODE_PAIR_HASH","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"allPairs","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"allPairsLength","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"tokenA","type":"address"},{"internalType":"address","name":"tokenB","type":"address"}],"name":"createPair","outputs":[{"internalType":"address","name":"pair","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"feeTo","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"feeToSetter","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"getPair","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_feeTo","type":"address"}],"name":"setFeeTo","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_feeToSetter","type":"address"}],"name":"setFeeToSetter","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"}]
"""

pancake_Router_abi = """[{"inputs":[{"internalType":"address","name":"_factory","type":"address"},{"internalType":"address","name":"_WETH","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"WETH","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"tokenA","type":"address"},{"internalType":"address","name":"tokenB","type":"address"},{"internalType":"uint256","name":"amountADesired","type":"uint256"},{"internalType":"uint256","name":"amountBDesired","type":"uint256"},{"internalType":"uint256","name":"amountAMin","type":"uint256"},{"internalType":"uint256","name":"amountBMin","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"addLiquidity","outputs":[{"internalType":"uint256","name":"amountA","type":"uint256"},{"internalType":"uint256","name":"amountB","type":"uint256"},{"internalType":"uint256","name":"liquidity","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amountTokenDesired","type":"uint256"},{"internalType":"uint256","name":"amountTokenMin","type":"uint256"},{"internalType":"uint256","name":"amountETHMin","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"addLiquidityETH","outputs":[{"internalType":"uint256","name":"amountToken","type":"uint256"},{"internalType":"uint256","name":"amountETH","type":"uint256"},{"internalType":"uint256","name":"liquidity","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"factory","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"uint256","name":"reserveIn","type":"uint256"},{"internalType":"uint256","name":"reserveOut","type":"uint256"}],"name":"getAmountIn","outputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"reserveIn","type":"uint256"},{"internalType":"uint256","name":"reserveOut","type":"uint256"}],"name":"getAmountOut","outputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"}],"name":"getAmountsIn","outputs":[{"internalType":"uint256[]","name":"amounts","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"}],"name":"getAmountsOut","outputs":[{"internalType":"uint256[]","name":"amounts","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountA","type":"uint256"},{"internalType":"uint256","name":"reserveA","type":"uint256"},{"internalType":"uint256","name":"reserveB","type":"uint256"}],"name":"quote","outputs":[{"internalType":"uint256","name":"amountB","type":"uint256"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"tokenA","type":"address"},{"internalType":"address","name":"tokenB","type":"address"},{"internalType":"uint256","name":"liquidity","type":"uint256"},{"internalType":"uint256","name":"amountAMin","type":"uint256"},{"internalType":"uint256","name":"amountBMin","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"removeLiquidity","outputs":[{"internalType":"uint256","name":"amountA","type":"uint256"},{"internalType":"uint256","name":"amountB","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"liquidity","type":"uint256"},{"internalType":"uint256","name":"amountTokenMin","type":"uint256"},{"internalType":"uint256","name":"amountETHMin","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"removeLiquidityETH","outputs":[{"internalType":"uint256","name":"amountToken","type":"uint256"},{"internalType":"uint256","name":"amountETH","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"liquidity","type":"uint256"},{"internalType":"uint256","name":"amountTokenMin","type":"uint256"},{"internalType":"uint256","name":"amountETHMin","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"removeLiquidityETHSupportingFeeOnTransferTokens","outputs":[{"internalType":"uint256","name":"amountETH","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"liquidity","type":"uint256"},{"internalType":"uint256","name":"amountTokenMin","type":"uint256"},{"internalType":"uint256","name":"amountETHMin","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"bool","name":"approveMax","type":"bool"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"removeLiquidityETHWithPermit","outputs":[{"internalType":"uint256","name":"amountToken","type":"uint256"},{"internalType":"uint256","name":"amountETH","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"liquidity","type":"uint256"},{"internalType":"uint256","name":"amountTokenMin","type":"uint256"},{"internalType":"uint256","name":"amountETHMin","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"bool","name":"approveMax","type":"bool"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"removeLiquidityETHWithPermitSupportingFeeOnTransferTokens","outputs":[{"internalType":"uint256","name":"amountETH","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"tokenA","type":"address"},{"internalType":"address","name":"tokenB","type":"address"},{"internalType":"uint256","name":"liquidity","type":"uint256"},{"internalType":"uint256","name":"amountAMin","type":"uint256"},{"internalType":"uint256","name":"amountBMin","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"bool","name":"approveMax","type":"bool"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"removeLiquidityWithPermit","outputs":[{"internalType":"uint256","name":"amountA","type":"uint256"},{"internalType":"uint256","name":"amountB","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"swapETHForExactTokens","outputs":[{"internalType":"uint256[]","name":"amounts","type":"uint256[]"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountOutMin","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"swapExactETHForTokens","outputs":[{"internalType":"uint256[]","name":"amounts","type":"uint256[]"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountOutMin","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"swapExactETHForTokensSupportingFeeOnTransferTokens","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"amountOutMin","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"swapExactTokensForETH","outputs":[{"internalType":"uint256[]","name":"amounts","type":"uint256[]"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"amountOutMin","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"swapExactTokensForETHSupportingFeeOnTransferTokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"amountOutMin","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"swapExactTokensForTokens","outputs":[{"internalType":"uint256[]","name":"amounts","type":"uint256[]"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"amountOutMin","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"swapExactTokensForTokensSupportingFeeOnTransferTokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"uint256","name":"amountInMax","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"swapTokensForExactETH","outputs":[{"internalType":"uint256[]","name":"amounts","type":"uint256[]"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"uint256","name":"amountInMax","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"swapTokensForExactTokens","outputs":[{"internalType":"uint256[]","name":"amounts","type":"uint256[]"}],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]
"""

pair_abi = """
[{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1","type":"uint256"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"Burn","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1","type":"uint256"}],"name":"Mint","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0In","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1In","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount0Out","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1Out","type":"uint256"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"Swap","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint112","name":"reserve0","type":"uint112"},{"indexed":false,"internalType":"uint112","name":"reserve1","type":"uint112"}],"name":"Sync","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"constant":true,"inputs":[],"name":"DOMAIN_SEPARATOR","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"MINIMUM_LIQUIDITY","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"PERMIT_TYPEHASH","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"burn","outputs":[{"internalType":"uint256","name":"amount0","type":"uint256"},{"internalType":"uint256","name":"amount1","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"factory","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"getReserves","outputs":[{"internalType":"uint112","name":"_reserve0","type":"uint112"},{"internalType":"uint112","name":"_reserve1","type":"uint112"},{"internalType":"uint32","name":"_blockTimestampLast","type":"uint32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_token0","type":"address"},{"internalType":"address","name":"_token1","type":"address"}],"name":"initialize","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"kLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"mint","outputs":[{"internalType":"uint256","name":"liquidity","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"permit","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"price0CumulativeLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"price1CumulativeLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"skim","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"amount0Out","type":"uint256"},{"internalType":"uint256","name":"amount1Out","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"swap","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"sync","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"token0","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"token1","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"}]
"""

pancake_Factory = Web3.toChecksumAddress("0xcA143Ce32Fe78f1f7019d7d551a6402fC5350c73")
pancake_Route = Web3.toChecksumAddress("0x10ed43c718714eb63d5aa57b78b54704e256024e")

w3 = Web3(Web3.HTTPProvider("http://127.0.0.1:8545"))

base = bsc.get("base")
coins = bsc.get("coin")
contract_usdt = w3.eth.contract(
    address=Web3.toChecksumAddress(base.get("USDT")), abi=BSC_BUSD)

contract_pancake_Router = w3.eth.contract(
    address=Web3.toChecksumAddress(pancake_Route), abi=pancake_Router_abi)

contract_pancake_Factory = w3.eth.contract(
    address=Web3.toChecksumAddress(pancake_Factory), abi=pancake_abi_Factory)

U = {
    "BUSD": 1,
    "USDT": 1,
    "ETH": 2944,
    "CAKE": 6.5,
    "WBNB": 380,
    "USDC": 1,
}


def chizi(symbol, address):
    print(f"检测池子深度: {symbol}")
    max_coin = ""
    max_usdt = 0
    max_pair = ""
    for base_symbol, base_address in base.items():
        index = 1
        pair = contract_pancake_Factory.functions.getPair(Web3.toChecksumAddress(address),
                                                          Web3.toChecksumAddress(base_address)).call()
        if address < base_address:
            index = 2
        if pair != "0x0000000000000000000000000000000000000000":
            contract_coin2 = w3.eth.contract(
                address=Web3.toChecksumAddress(pair), abi=pair_abi)
            data = contract_coin2.functions.getReserves().call()
            if index == 1:
                base_liqu = data[0] / (10 ** 18)
                coin_liqu = data[1] / (10 ** 18)
            else:
                base_liqu = data[1] / (10 ** 18)
                coin_liqu = data[0] / (10 ** 18)

            tmp_base = base_liqu * U.get(base_symbol)
            if tmp_base > max_usdt:
                max_coin = base_symbol
                max_usdt = tmp_base
                max_pair = pair
    print(f"池子深度检测完毕，目前，最大 symbol 为 {max_coin} 深度为 {max_usdt}")
    return max_coin, max_pair


def get_coin_contract(coin_address):
    contract_coin = w3.eth.contract(
        address=Web3.toChecksumAddress(coin_address), abi=BSC_BUSD)
    return contract_coin


def approve(wallet_address, wallet_private, coin_address):
    nonce = w3.eth.getTransactionCount(wallet_address)
    print(f"开始 approve: nonce {nonce}")
    contract_coin = get_coin_contract(coin_address)
    tx_dic = contract_coin.functions.approve(pancake_Route,
                                             0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff).buildTransaction(
        {
            'gas': 300000,
            'gasPrice': w3.eth.gasPrice,
            'nonce': nonce,
        })
    sign_tx = w3.eth.account.signTransaction(tx_dic, wallet_private)
    txn_hash = w3.eth.sendRawTransaction(sign_tx.rawTransaction)
    print(Web3.toHex(txn_hash))
    while 1:
        _nonce = w3.eth.getTransactionCount(wallet_address)
        if _nonce != nonce:
            print("approve 成功")
            break
        time.sleep(5)


def get_usdt(wallet_address):
    balance = contract_usdt.functions.balanceOf(wallet_address).call()
    return balance


def get_wbnb(wallet_address):
    balance = contract_usdt.functions.balanceOf(wallet_address).call()
    return balance


def get_coin(contract, decimal_coin, wallet_address):
    contract_coin = w3.eth.contract(
        address=Web3.toChecksumAddress(contract), abi=BSC_BUSD)
    balance = contract_coin.functions.balanceOf(wallet_address).call()
    return balance


def encode_swap(coin_amount, base_amount, paths, wallet_address):
    deadline = int(time.time()) + 300
    tx_dic = contract_pancake_Router.functions.swapExactTokensForTokens(
        int(coin_amount),
        int(base_amount - base_amount * 0.01),
        paths,
        # Web3.toChecksumAddress(cex_address),
        Web3.toChecksumAddress(wallet_address),
        deadline
    ). \
        buildTransaction(
        {
            'gas': 500000,
        }
    )
    return tx_dic


def send_transaction(tx_dic, wallet_address, wallet_private):
    nonce = w3.eth.getTransactionCount(wallet_address)
    tx_dic["nonce"] = nonce
    tx_dic['gasPrice'] = w3.eth.gasPrice
    # print(nonce)
    sign_tx = w3.eth.account.signTransaction(tx_dic, private_key=wallet_private)
    txn_hash = w3.eth.sendRawTransaction(sign_tx.rawTransaction)
    return Web3.toHex(txn_hash)


def get_wait_receipt(tx):
    data = w3.eth.wait_for_transaction_receipt(tx)
    return data


# 刚开始的账号没有 usdt 需要进行兑换
def swap_usdt(wallet_address, wallet_private):
    nonce = w3.eth.getTransactionCount(wallet_address)
    bnb = w3.eth.get_balance(wallet_address)
    usdt = get_usdt(wallet_address)
    print(f"开始兑换 usdt,nonce : {nonce} bnb:{bnb} usdt:{usdt}")
    deadline = int(time.time()) + 300
    dex_sell_paths = [Web3.toChecksumAddress(bsc.get("base").get("WBNB")),
                      Web3.toChecksumAddress(bsc.get("base").get("USDT"))]

    tx_dic = contract_pancake_Router.functions.swapExactETHForTokens(
        0,
        dex_sell_paths,
        Web3.toChecksumAddress(wallet_address),
        deadline,
    ). \
        buildTransaction(
        {
            'from': Web3.toChecksumAddress(wallet_address),
            'gas': 5000000,
            'value': Web3.toWei(0.01, 'ether')
        }
    )
    tx = send_transaction(tx_dic, wallet_address, wallet_private)
    # print(get_wait_receipt(tx))
    while 1:
        _nonce = w3.eth.getTransactionCount(wallet_address)
        if _nonce != nonce:
            print("approve 成功")
            break
        time.sleep(5)
    usdt = get_usdt(wallet_address)
    print(f"兑换后 usdt: {usdt}")


def swap(coin, max_u, pair, wallet_address, wallet_private):
    nonce = w3.eth.getTransactionCount(wallet_address)
    print(coin)
    coin_contract = bsc.get("coin").get(coin).get("address")
    coin_pair = max_u
    if coin_pair != "USDT":
        dex_sell_paths = [Web3.toChecksumAddress(coin_contract),
                          Web3.toChecksumAddress(bsc.get("base").get(coin_pair)),
                          Web3.toChecksumAddress(bsc.get("base").get("USDT"))]
        dex_buy_paths = [Web3.toChecksumAddress(bsc.get("base").get("USDT")),
                         Web3.toChecksumAddress(bsc.get("base").get(coin_pair)),
                         Web3.toChecksumAddress(coin_contract)]
    else:
        dex_sell_paths = [Web3.toChecksumAddress(coin_contract),
                          Web3.toChecksumAddress(bsc.get("base").get("USDT"))]
        dex_buy_paths = [Web3.toChecksumAddress(bsc.get("base").get("USDT")), Web3.toChecksumAddress(coin_contract)]
    usdt = get_usdt(wallet_address)
    print(f"\t usdt: {usdt / (10 ** 18)}")
    tx_dic = encode_swap(usdt, 0, dex_buy_paths, wallet_address)
    tx = send_transaction(tx_dic, wallet_address, wallet_private)
    get_wait_receipt(tx)
    while 1:
        __nonce = w3.eth.getTransactionCount(wallet_address)
        if __nonce > nonce:
            nonce = w3.eth.getTransactionCount(wallet_address)
            break
        time.sleep(3)
    coin_balance = get_coin(coin_contract, bsc.get("coin").get(coin).get("decimal"), wallet_address)
    print(f'\t coin: {coin_balance / (10 ** bsc.get("coin").get(coin).get("decimal"))}')

    tx_dic = encode_swap(coin_balance, 0, dex_sell_paths,
                         wallet_address)
    tx = send_transaction(tx_dic, wallet_address, wallet_private)
    data = get_wait_receipt(tx)
    # print(data)
    while 1:
        __nonce = w3.eth.getTransactionCount(wallet_address)
        if __nonce > nonce:
            nonce = w3.eth.getTransactionCount(wallet_address)
            break
        time.sleep(3)

    usdt = get_usdt(wallet_address)
    print(f"\t usdt: {usdt / (10 ** 18)}")


if __name__ == '__main__':
    max_coin, max_pair = chizi("CP", "0x82C19905B036bf4E329740989DCF6aE441AE26c1")
    approve("解锁账号",
            "解锁账号的密钥",
            "0x82C19905B036bf4E329740989DCF6aE441AE26c1")
    swap_usdt("解锁账号",
              "解锁账号的密钥")
    swap("CP", max_coin, max_pair, "解锁账号",
         "解锁账号的密钥")