embark-area-51/lib/modules/scaffolding/index.js

94 lines
3.1 KiB
JavaScript

class Scaffolding {
constructor(engine, _options){
this.engine = engine;
this.options = _options;
this.plugins = _options.plugins;
engine.events.setCommandHandler("scaffolding:generate:contract", (options, cb) => {
this.framework = options.contractLanguage;
this.fields = options.fields;
this.generate(options.contract, options.overwrite, true, cb);
});
engine.events.setCommandHandler("scaffolding:generate:ui", (options, cb) => {
this.framework = options.framework;
this.fields = options.fields;
this.generate(options.contract, options.overwrite, false, cb);
});
}
getScaffoldPlugin(framework){
let dappGenerators = this.plugins.getPluginsFor('dappGenerator');
let builder;
dappGenerators.forEach((plugin) => {
plugin.dappGenerators.forEach((d) => {
if(d.framework === framework){
builder = d.cb;
}
});
});
return builder;
}
loadFrameworkModule(){
switch(this.framework){
case 'react':
this.plugins.loadInternalPlugin('scaffolding-react', this.options);
break;
case 'solidity':
this.plugins.loadInternalPlugin('scaffolding-solidity', this.options);
break;
default:
}
}
generate(contractName, overwrite, isContractGeneration, cb){
this.loadFrameworkModule();
const build = this.getScaffoldPlugin(this.framework);
if(!build){
this.engine.logger.error("Could not find plugin for framework '" + this.framework + "'");
process.exit();
}
const hasFields = Object.getOwnPropertyNames(this.fields).length !== 0;
if(isContractGeneration && !hasFields){
// This happens when you execute "scaffold ContractName",
// assuming the contract already exists in a .sol file
cb();
return;
}
let contract;
if(isContractGeneration && hasFields){
contract = {className: contractName, fields: this.fields};
try {
build(contract, overwrite, cb);
} catch(err){
this.engine.logger.error(err.message);
}
} else {
// Contract already exists
this.engine.events.request("contracts:list", (_err, contractsList) => {
if(_err) throw new Error(_err);
const contract = contractsList.find(x => x.className === contractName);
if(!contract){
this.engine.logger.error("contract '" + contractName + "' does not exist");
cb();
return;
}
try {
build(contract, overwrite, cb);
} catch(err){
this.engine.logger.error(err.message);
}
});
}
}
}
module.exports = Scaffolding;