'use strict';

const _ = require('lodash');
const assert = require('assert');
const starMatch = require('./star-match');
const normalizeLevel = require('../common').normalizeLevel;

class LevelsContainer {
  constructor() {
    this._mappings = [];
  }

  set(componentPattern, level) {
    assert(_.isString(componentPattern), 'Component pattern should be a string');
    assert(_.isString(level), 'Level should be a string');

    this._mappings.push({
      pattern: componentPattern,
      regex: starMatch.buildRegExp(componentPattern),
      level: normalizeLevel(level)
    });
  }

  unset(componentPattern) {
    assert(_.isString(componentPattern), 'Component pattern should be a string');

    _.remove(this._mappings, function (mapping) {
      return mapping.pattern === componentPattern;
    });
  }

  get(component) {
    for (let i = this._mappings.length - 1; i >= 0; i--) {
      if (this._mappings[i].regex.test(component)) {
        return this._mappings[i].level;
      }
    }
  }
}

module.exports = LevelsContainer;