# All files / src/profiles/services facebook.ts

95% Statements 19/20
50% Branches 1/2
100% Functions 3/3
95% Lines 19/20

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    import * as cheerio from 'cheerio'
    import { Service } from './service'

    class Facebook extends Service {
      static getProofUrl(proof: any) {
        return this.normalizeUrl(proof)
      }

      static normalizeUrl(proof: any) {
        let proofUrl = proof.proof_url.toLowerCase()
        const urlRegex = /(?:http[s]*:\/\/){0,1}(?:[a-zA-Z0-9-]+\.)+facebook\.com/

        proofUrl = super.prefixScheme(proofUrl)

        if (proofUrl.startsWith('https://facebook.com')) {
          let tokens = proofUrl.split('https://facebook.com')
          proofUrl = `https://www.facebook.com${tokens[1]}`
          tokens = proofUrl.split('https://www.facebook.com/')[1].split('/posts/')
          const postId = tokens[1]
          proofUrl = `https://www.facebook.com/${proof.identifier}/posts/${postId}`
        } else if (proofUrl.match(urlRegex)) {
          const tokens = proofUrl.split('facebook.com/')[1].split('/posts/')
          const postId = tokens[1]
          proofUrl = `https://www.facebook.com/${proof.identifier}/posts/${postId}`
        } else {
          throw new Error(`Proof url ${proof.proof_url} is not valid for service ${proof.service}`)
        }

        return proofUrl
      }

      static getProofStatement(searchText: string) {
        const $ = cheerio.load(searchText)
        const statement = $('meta[name="description"]').attr('content')
        return (statement !== undefined) ? statement.trim() : ''
      }
    }

    export { Facebook }