1  'use strict'
 2  
 3  const browsers = require('./browsers').browsers
 4  const versions = require('./browserVersions').browserVersions
 5  const agentsData = require('../../data/agents')
 6  
 7  function unpackBrowserVersions(versionsData) {
 8    return Object.keys(versionsData).reduce((usage, version) => {
 9      usage[versions[version]] = versionsData[version]
10      return usage
11    }, {})
12  }
13  
14  module.exports.agents = Object.keys(agentsData).reduce((map, key) => {
15    let versionsData = agentsData[key]
16    map[browsers[key]] = Object.keys(versionsData).reduce((data, entry) => {
17      if (entry === 'A') {
18        data.usage_global = unpackBrowserVersions(versionsData[entry])
19      } else if (entry === 'C') {
20        data.versions = versionsData[entry].reduce((list, version) => {
21          if (version === '') {
22            list.push(null)
23          } else {
24            list.push(versions[version])
25          }
26          return list
27        }, [])
28      } else if (entry === 'D') {
29        data.prefix_exceptions = unpackBrowserVersions(versionsData[entry])
30      } else if (entry === 'E') {
31        data.browser = versionsData[entry]
32      } else if (entry === 'F') {
33        data.release_date = Object.keys(versionsData[entry]).reduce(
34          (map2, key2) => {
35            map2[versions[key2]] = versionsData[entry][key2]
36            return map2
37          },
38          {}
39        )
40      } else {
41        // entry is B
42        data.prefix = versionsData[entry]
43      }
44      return data
45    }, {})
46    return map
47  }, {})