const Countries = require('countries-capital')
const countries = new Countries()

// filter by name
const brazil = countries.byName('brazil')

/**
 * Get all country data:
  [{
    "country": "Brazil",
    "city": "Brasília",
    "independence": "1822",
    "location": "South America"
  }]
*/
brazil.toJson()

// get capital
brazil.capital // Brasília

// resetting the filter
countries.reset()

// filter by location and independence year
countries.byLocation('europe').byIndependence(1900, '>=')

/**
 * Get all countries data:
  [{
    "country": "Bulgaria",
    "city": "Sofia",
    "independence": "1908",
    "location": "Eastern Europe"
  },
  {...},
  {...}
  ]
*/
countries.toJson()

// When country has more than one country after applying the filter it returns a random capital every time it calls .capital
countries.capital // Sofia
countries.capital // ...
countries.capital // ...
countries.capital // ...

const Countries = require('countries-capital')
const countries = new Countries()

// lists all the countries data disregading any filter
countries.list()

// reset any applied filters
countries.reset()

// filter by country name
// passing country full name: single result
countries.byName('brazil')
countries.toJson() // all country data as an array of objects
countries.capital // only country capital as string

// passing country partial name: multiple results
countries.reset().byName('ind')

// filter by capital
countries.byCapital('amsterdam') // single result
countries.byCapital('ber') // multiple result
countries.byCapital(null) // multiple result. All countries without a Capital City

// filter by location
countries.byLocation('europe')
countries.byLocation('South America')
countries.byLocation(null)

// filter by independence date
countries.byIndependence(1822) // implicit = (equal sign) operator
countries.byIndependence(500, '<') // lesser than
countries.byIndependence(2000, '>=') // greater or equal than
countries.byIndependence(null) // countries without independence year

// get the longest capital name of the list
countries.longest().capital

// return all filtered data as array of objects
countries.toJson()

// return capital as string
// if countries.length === 0, throw an error
// if countries.length === 1, return specific capital
// if countries.length > 1, return random capital
countries.capital