import Rule from './Rule.js'
import { extensionFilter, getContent } from '../helpers.js'
import { getTitle } from '../parser.js'

export default class TitleLength extends Rule {
  initialize() {
    this.minLength = 30
    this.maxLength = 70
    this.filenames = extensionFilter(this.filenames, 'html');
  }

  report() {
    return {
      ...super.report(),
      ...{ 
        issueDescription: `The <title> should contain between ${this.minLength} and ${this.maxLength} characters.`,
        issueReferences: ['https://moz.com/learn/seo/title-tag', 'https://www.authorityhacker.com/seo-title-tags/', 'https://www.codeur.com/blog/seo-optimiser-title/']
      }
    }
  }

  check() {
    for (const filename of this.filenames) {
      const content = getContent(filename);
      const title = getTitle(content)
      if (this.test(title)) {
        this.issueCount++
        const issue = {
          url: filename.replace(this.options.directory, ''),
          title: title
        }
        this.issues = [...this.issues, ...[issue]]
      }
    }

    return this.report()
  }
}