# Minion DeFi - Initial Findings

## How JSON blobs work

- JSON blobs contain the ABI data for a contract. New ABIs for various Defi contracts can be found via Github, Etherscan, etc.
- Add them to `moloch-minion/src/abi/xxx.json`
- These blobs get imported into the project in the `/src/App.vue` file

...

import abiDecoder from "abi-decoder";
import gql from "graphql-tag";
import minionAbi from "./abi/minion.json";
import molochAbi from "./abi/moloch_v2.json";
import subdomainRegistrarAbi from "./abi/minion_subdomain_registrar.json";

...

const abis = [
  minionAbi,
  require("./abi/certnft.json"),
  require("./abi/ctoken.json"),
  require("./abi/erc20.json"),
  require("./abi/erc721.json"),
  require("./abi/moloch_v1.json"),
  require("./abi/moloch_v1_pool.json"),
  require("./abi/moloch_v2.json"),
  require("./abi/moloch_v2_guildbank.json"),
  require("./abi/uniswap_v2_router.json")
];
abis.map(abi => abiDecoder.addABI(abi));

- Interaction with these blobs is exposed to the front end in `/src/views/NewMinion.vue`

	...			
				  <v-select
	            	label="Select ABI"
	            	:items="abiItems"
	            	@change="chooseABI"
	        	  ></v-select>
	        	  <v-textarea
	            	v-if="!selectedABI"
	            	name="input-7-1"
	            	v-model="abiData"
	            	filled
	            	label="ABI String"
	            	:rules="abiStringRules"
	            	required
	            	value=""
	            	@change="getFunctions"
	        	  ></v-textarea>
	        	  <v-select
	            	label="Functions"
	            	v-model="selectedFunction"
	            	:items="abiFunctions"
	            	@change="chooseFunction"
	        	  ></v-select>

	...

The above code generates UI elements that show available contract ABIs. Users can select one, and then a set of available function calls is shown.

	abis: {
		  CertNFT: require("../abi/certnft.json"),
		  "Compound cToken": require("../abi/ctoken.json"),
		  "ENS Registrar": require("../abi/ens_registrar.json"),
		  ERC20: require("../abi/erc20.json"),
		  ERC721: require("../abi/erc721.json"),
		  Minion: require("../abi/minion.json"),
		  "Minion Subdomain Registrar": require("../abi/minion_subdomain_registrar.json"),
		  "Moloch v1": require("../abi/moloch_v1.json"),
		  "Moloch v1 Pool": require("../abi/moloch_v1_pool.json"),
		  "Moloch v2": require("../abi/moloch_v2.json"),
		  "Moloch v2 GuildBank": require("../abi/moloch_v2_guildbank.json"),
		  "Uniswap v2 Router": require("../abi/uniswap_v2_router.json")
		},
		abiItems: [
		  "Custom ABI",
		  "CertNFT",
		  "Compound cToken",
		  "ENS Registrar",
		  "ERC20",
		  "ERC721",
		  "Minion",
		  "Minion Subdomain Registrar",
		  "Moloch v1",
		  "Moloch v1 Pool",
		  "Moloch v2",
		  "Moloch v2 GuildBank",
		  "Uniswap v2 Router"
		],
		abiFunctions: [],
		abiData: "",
		abiStringRules: [
		  v => {
	    	try {
	    	  JSON.parse(v);
	    	} catch (e) {
	    	  return "invalid ABI string";
	    	}
	    	return true;
		  }
		],
		checkbox: false
	  }),
	  methods: {
		chooseABI(contractName) {
		  if (contractName === "Custom ABI") {
	    	this.selectedABI = null;
		  } else {
	    	this.selectedABI = contractName;
	    	this.getFunctions(this.abis[contractName]);
		  }
		},
		chooseFunction(fName) {
		  this.inputs = [];
		  this.inputValues = [];
		  const func = this.abiFunctions.find(({ name }) => name === fName);
		  this.selectedFunction = func;
		  this.inputs = func.inputs;
		  this.inputValues.length = func.inputs.length;
		},
		getFunctions(abiParam) {
		  this.hexData = "";
		  this.selectedFunction = null;
		  this.inputs = [];
		  this.inputValues = [];
		  let abi;
		  if (typeof abiParam === "object") {
	    	abi = abiParam;
		  } else {
	    	try {
	    	  abi = JSON.parse(abiParam);
	    	} catch (e) {
	    	  // let validation handle errors
	    	  return [];
	    	}
		  }
		  this.abiFunctions = abi
	    	.filter(({ type, constant }) => type === "function" && !constant)
	    	.map((f, id) => ({ ...f, text: f.name, id }));
		},

## Potential Defi interactions
- Uniswap - access to swaps and pools
- Balancer
- Compound - borrow and lend
- TokenSets - purchase sets
- Maker?