let fs = require('fs-extra');

let path = require('path');

function WriteVersionsPlugin(file) {

this.file = file;

}

WriteVersionsPlugin.prototype.writeStats = function(compiler, stats) {

stats = stats.toJson();

let assetsByChunkName = stats.assetsByChunkName;

for (let name in assetsByChunkName) {

if (assetsByChunkName[name] instanceof Array) {

assetsByChunkName[name] = assetsByChunkName[name].map(function(path) {

return compiler.options.output.publicPath + path;

});

} else {

assetsByChunkName[name] = compiler.options.output.publicPath + assetsByChunkName[name];

}

}

// console.log("WRITING VERSIONS", this.file, assetsByChunkName);

fs.ensureDirSync(path.dirname(this.file));

fs.writeFileSync(this.file, JSON.stringify(assetsByChunkName));

};

WriteVersionsPlugin.prototype.apply = function(compiler) {

compiler.plugin("done", this.writeStats.bind(this, compiler));

};

module.exports = WriteVersionsPlugin;