import { ASTItem } from './ast';
import * as regexps from './regexps';

export class Parser {
  private inputlines: string[];
  public items: ASTItem[] = [];

  constructor(inputstring: string) {
    this.inputlines = inputstring.split('\n')
      .filter(line => !regexps.REGEXP_SANITIZER_INPUT.test(line))
      .filter(line => line.length > 0);
  }

  public get blocks() {
    return this.items.filter(item => item.isBlock);
  }

  public get elements() {
    return this.items.filter(item => item.isElement);
  }

  public get modifiers() {
    return this.items.filter(item => item.isModifier);
  }

  public get files(): string[] {
    return this.blocks.map(block => block.name);
  }

  public getByBlock(block: ASTItem) {
    return this.items.filter(item => {
      return !item.isBlock && item.parentBlock === block.name;
    });
  }

  public parse(): void {
    this.items = this.inputlines.map(line => new ASTItem(line));
  }
}