var babel = require("babel-core");

var envPreset = require("babel-preset-env");
var classPropsPlugin = require("babel-plugin-transform-class-properties");
var jestPreset = require("babel-preset-jest");
var reactPreset = require("babel-preset-react");

module.exports = {
    process: function (src, filename) {
        // Ignore all files within node_modules (but don't ignore our libraries)
        // babel files can be .js, .es, .jsx or .es6
        var isNotNodeModules = filename.indexOf("node_modules") === -1;
        var isLibrary1 = filename.indexOf("library1") !== -1;
        var isLibrary2 = filename.indexOf("library2") !== -1;

        if ((isNotNodeModules || isLibrary1 || isLibrary2) && babel.util.canCompile(filename)) {
            return babel.transform(src, {
                filename: filename,
                retainLines: true,
                plugins: [classPropsPlugin],
                presets: [envPreset, jestPreset, reactPreset]
            }).code;
        }

        return src;
    }
};