music-downloader/app/model/SearchModel.js

class SearchModel {
    constructor() {
        this.source_models = {};
    }

    registerSourceModel(source_model) {
        this.source_models[source_model.getName()] = source_model;
    }

    getSourceList() {
        return Object.keys(this.source_models);
    }

    async searchMusic(source_name, keywords) {
        if(this.source_models.hasOwnProperty(source_name)) {
            return await this.source_models[source_name].search(keywords);
        }else {
            return "无效的搜索源";
        }
    }
}

module.exports = {
    SearchModel
}