quickSetup

#! /usr/local/bin/node

const readline = require('readline')
const fs = require('fs')
const promisify = require('util').promisify
const writeFile = promisify(fs.writeFile)
const path = require('path')

const writeConfig = (name, json) => {
  const savePath = path.join('./server/config', name + '.json')
  return writeFile(savePath, JSON.stringify(json, null, '  '), {})
}

const loadConfig = (name) => {
  const readPath = path.join('./server/config', name + '.json')
  try {
    const str = fs.readFileSync(readPath, 'utf8')
    return JSON.parse(str)
  } catch (err) {
    switch (name) {
      case 'dashboards':
        return []
      case 'googleanalytics':
        return {
          "klass": "GoogleAnalytics",
          "dashboard": "default",
          "profile": null,
          "elements": {
            "events": [],
            "pages": [],
            "dimensions": [],
            "goals": [],
            "topPages": false,
            "referrals": false,
            "overallMetrics": false,
            "deviceData": false
          }
        }
      case 'secrets':
        return {
          "google": null,
          "mailchimp": null
        }
      case 'mailchimp':
        return {
          "klass": "MailchimpStats",
          "dashboard": "default",
          "lists": [],
          "campaignWhitelist": [],
          "sourceField": null
        }
      case 'feed-table':
        return {
          "klass": "FeedTable",
          "profile": null,
          "feedUrl": null,
          "sourceName": "Blog",
          "dashboard": "default"
        }    
      default:
        return {}                  
    }
  }
}

const booleanize = (str) => {
  return str[0].toLowerCase() === 'y'
}

const goToQuestion = (label) => {
  const index = questions.findIndex(question => question.label === label)
  if (index >= 0) {
    return Promise.resolve(index)
  } else {
    return Promise.resolve(questions.length)
  }
}

const questions = [
  {
    'text': 'What is the name of this dashboard?',
    'handler': (answer) => {
      const dashboards = [{
        "name": "default",
        "label": answer
      }]
      return writeConfig('dashboards', dashboards)
    }
  },
  {
    'text': 'Do you want to show data from Google Analytics? (y/n)',
    'handler': (answer) => {
      if (!booleanize(answer)) {
        return goToQuestion('mailchimp')
      }
      return Promise.resolve()
    }
  },
  {
    'text': 'Please specify the filepath to the Service Account JSON file downloaded from the Google APIs Console:',
    'handler': (answer) => {
      const json = fs.readFileSync(answer, 'utf8')
      const secrets = loadConfig('secrets')
      secrets.google = JSON.parse(json).web
      return writeConfig('secrets', secrets)
    }
  },
  {
    'text': 'What is the Google Analytics View ID which you want to track?',
    'handler': (answer) => {
      const googleanalytics = loadConfig('googleanalytics')
      googleanalytics.profile = answer
      return writeConfig('googleanalytics', googleanalytics)
    }
  },
  {
    'text': 'Do you want to show top pages by pageview? (y/n)',
    'handler': (answer) => {
      const googleanalytics = loadConfig('googleanalytics')
      googleanalytics.elements.topPages = booleanize(answer)
      return writeConfig('googleanalytics', googleanalytics)
    }
  },
  {
    'text': 'Do you want to show top referrals by pageview? (y/n)',
    'handler': (answer) => {
      const googleanalytics = loadConfig('googleanalytics')
      googleanalytics.elements.referrals = booleanize(answer)
      return writeConfig('googleanalytics', googleanalytics)
    }
  },
  {
    'text': 'Do you want to show traffic by device (desktop, mobile, tablet)? (y/n)',
    'handler': (answer) => {
      const googleanalytics = loadConfig('googleanalytics')
      googleanalytics.elements.deviceData = booleanize(answer)
      return writeConfig('googleanalytics', googleanalytics)
    }
  },
  {
    'text': 'Do you want to show sitewide web metrics? (y/n)',
    'handler': (answer) => {
      const googleanalytics = loadConfig('googleanalytics')
      googleanalytics.elements.overallMetrics = booleanize(answer)
      return writeConfig('googleanalytics', googleanalytics)
    }
  },
  {
    'text': 'Do you have an RSS feed for your blog? (y/n)',
    'handler': (answer) => {
      if (!booleanize(answer)) {
        return goToQuestion('mailchimp')
      }
      return Promise.resolve()
    }
  },
  {
    'text': 'What is the URL of your RSS feed?',
    'handler': (answer) => {
      const googleanalytics = loadConfig('googleanalytics')
      const feedTable = loadConfig('feed-table')
      feedTable.profile = googleanalytics.profile
      feedTable.feedUrl = answer
      return writeConfig('feed-table', feedTable)
    }
  },
  {
    'text': 'Do you want to show email campaign data from Mailchimp? (y/n)',
    'label': 'mailchimp',
    'handler': (answer) => {
      if (!booleanize(answer)) {
        return goToQuestion(null)
      }
      return Promise.resolve()
    }
  },
  {
    'text': 'What is your Mailchimp API key?',
    'handler': (answer) => {
      const secrets = loadConfig('secrets')
      secrets.mailchimp = answer
      return writeConfig('secrets', secrets)
    }
  },
  {
    'text': 'What is the list ID of your Mailchimp list?',
    'handler': (answer) => {
      const mailchimp = loadConfig('mailchimp')
      mailchimp.lists.push(answer)
      return writeConfig('mailchimp', mailchimp)
    }
  }
]

const rl = readline.createInterface({
  input: process.stdin,
  output: process.stdout
})

const nextQuestion = (index) => {
  if (index >= questions.length) return
  const question = questions[index]
  return new Promise((resolve, reject) => {
    rl.question(question.text + ' ', answer => {
      question.handler(answer.trim())
        .then((response) => {
          const nextIndex = isNaN(response) ? (index + 1) : response
          return nextQuestion(nextIndex)
        })
        .catch((err) => {
          console.error(err)
          return nextQuestion(index)
        })
        .then(() => {
          resolve()
        })
    })
  })
}

nextQuestion(0)
  .then(() => {
    rl.close()
    console.log('Your dashboard is now configured. You may start it by running "docker build -t analytics-dashboard ./ && docker run -p 8080:8080 analytics-dashboard".')
  })
  .catch((err) => {
    console.error(err)
  })