var logger = require('winston');
var fs = require('fs');
var Promise = require('promise');

class PluginManager {
  constructor(config) {
    this.enabledPlugins = [];
    this.plugins = [];
    this.config = config;

    var that = this;

    config.plugins.forEach(function(pluginName) {
      logger.info('checking ' + pluginName + '...');

      if(fs.existsSync('./plugins/'+pluginName.toLowerCase()+'.js')) {
        logger.info('* Exists. Enabling...');
        that.enabledPlugins.push(pluginName.toLowerCase());
      }

    }); 
  }

  loadAllPlugins() {
    var that = this;
    this.enabledPlugins.forEach(function(pluginName) {
      var Plugin = require('./' + pluginName + '.js');
      
      var plugin = new Plugin(that.config);
      that.plugins.push(plugin);
    });
  }

  testPlugins(input) {
    var promises = [];
    for(let i = 0; i < this.plugins.length; i++) {
      var plugin = this.plugins[i];

      if(plugin.test(input)) {
        logger.info('* Plugin ' + plugin.name + ' reported hit');

        promises.push(plugin.result(input));
      }
    }
    return Promise.all(promises);
  }

}

// export default BasePlugin;
module.exports = PluginManager;