embark/lib/abi.js

73 lines
2.5 KiB
JavaScript

var Plugins = require('./plugins.js');
var ABIGenerator = function(options) {
this.blockchainConfig = options.blockchainConfig || {};
this.contractsManager = options.contractsManager;
this.rpcHost = options.blockchainConfig && options.blockchainConfig.rpcHost;
this.rpcPort = options.blockchainConfig && options.blockchainConfig.rpcPort;
this.plugins = options.plugins || new Plugins({});
};
ABIGenerator.prototype.generateProvider = function() {
var self = this;
var result = "";
var providerPlugins = this.plugins.getPluginsFor('clientWeb3Provider');
if (providerPlugins.length > 0) {
providerPlugins.forEach(function(plugin) {
result += plugin.generateProvider(self) + "\n";
});
} else {
result += "\nif (typeof web3 !== 'undefined' && typeof Web3 !== 'undefined') {";
result += '\n\tweb3 = new Web3(web3.currentProvider);';
result += "\n} else if (typeof Web3 !== 'undefined') {";
result += '\n\tweb3 = new Web3(new Web3.providers.HttpProvider("http://' + this.rpcHost + ':' + this.rpcPort + '"));';
result += '\n}';
result += "\nweb3.eth.defaultAccount = web3.eth.accounts[0];";
}
return result;
};
ABIGenerator.prototype.generateContracts = function(useEmbarkJS) {
var self = this;
var result = "\n";
var contractsPlugins = this.plugins.getPluginsFor('contractGeneration');
if (contractsPlugins.length > 0) {
contractsPlugins.forEach(function(plugin) {
result += plugin.generateContracts({contracts: self.contractsManager.contracts});
});
} else {
for(var className in this.contractsManager.contracts) {
var contract = this.contractsManager.contracts[className];
var abi = JSON.stringify(contract.abiDefinition);
var gasEstimates = JSON.stringify(contract.gasEstimates);
if (useEmbarkJS) {
result += "\n" + className + " = new EmbarkJS.Contract({abi: " + abi + ", address: '" + contract.deployedAddress + "', code: '" + contract.code + "', gasEstimates: " + gasEstimates + "});";
} else {
result += "\n" + className + "Abi = " + abi + ";";
result += "\n" + className + "Contract = web3.eth.contract(" + className + "Abi);";
result += "\n" + className + " = " + className + "Contract.at('" + contract.deployedAddress + "');";
}
}
}
return result;
};
ABIGenerator.prototype.generateABI = function(options) {
var result = "";
result += this.generateProvider();
result += this.generateContracts(options.useEmbarkJS);
return result;
};
module.exports = ABIGenerator;