Show the 3 day forecast from Windfinder

windfinder.1h.rb

#!/usr/bin/env ruby
# <bitbar.title>Windfinder </bitbar.title>
# <bitbar.version>v1.0</bitbar.version>
# <bitbar.author>Gergő Sulymosi</bitbar.author>
# <bitbar.author.github>trekdemo</bitbar.author.github>
# <bitbar.desc>Show the 3 day forecast from Windfinder</bitbar.desc>
# <bitbar.image></bitbar.image>
# <bitbar.dependencies>ruby</bitbar.dependencies>
# <bitbar.abouturl></bitbar.abouturl>

SPOTS = %w[
  ijmuiden
  muiderzand
  markermeer_schellinkhout
]

require 'nokogiri'
require 'rainbow'
require "open-uri"

# ==============================================================================
# PARSING
# ==============================================================================
def fetch_spot(name)
  url = "https://www.windfinder.com/widget/forecast/#{name}?show_pressure=0&unit_temperature=c&show_day=1&show_rain=1&unit_rain=mm&days=3&unit_wind=kts&show_clouds=0&version=2&show_wind=1&show_temperature=1&show_waves=0&columns=2&unit_wave=m"
  html_string = open(url){ |f| f.read }
  document = Nokogiri::HTML(html_string)

  widget_title = document.at_css('.widget-title').text.strip
  link = 'https://www.windfinder.com' + document.at_css('a#title-link').attr('href')

  data = document.search('.weathertable').map do |node|
    day_date = node.at('.weathertable__header').text.strip
    daily_data = node.search('.weathertable__row').map do |node|
      {
        hour: node.at_css('.cell-timespan').text.strip,
        direction: node.at_css('.directionarrow').attr('title').strip.to_i,
        speed: node.at_css('.speed').text.strip.to_i,
        gust: node.at_css('.data-gusts').text.gsub(/max[^\d+]/, '').strip.to_i,
        rain: node.at_css('.data-rain').text.strip.to_i,
        temp: node.at_css('.data-temp').text.strip.to_i,
      }
    end

    [day_date, daily_data]
  end

  [widget_title, link, data]
end


# ==============================================================================
# FORMATTING
# ==============================================================================
ARROWS = '↓↙←↖↑↗→↘'.split('') # 0 -> 360

def colored_speed(speed)
  string = Rainbow(format('%2d', speed))
  case speed
  when 0..6   then string.blue
  when 7..15  then string.green
  when 16..23 then string.yellow
  else string.red
  end
end

def colored_menu(speed)
  case speed
  when 0..6   then 'blue'
  when 7..15  then 'lightblue'
  when 16..23 then 'green'
  else 'red'
  end
end

def render_spot(name)
  title, link, data = *fetch_spot(name)

  puts format('%s | href=%s', title, link)
  data.each do |day_date, hourly_data|
    puts format('-- %s', Rainbow(day_date).bright)
    hourly_data.each do |data|
      puts format(
        '-- %s (%s) %s / %s | color=%s',
        Rainbow(data[:hour]).bright,
        ARROWS[(data[:direction] / 45.0).round % 8],
        colored_speed(data[:speed]),
        colored_speed(data[:gust]),
        colored_menu(data[:speed])
      )
    end
    puts '--'
  end
end


# ==============================================================================
# RENDERING
# ==============================================================================
# puts 'Windfinder'
puts ':surfer:'
puts '---'
SPOTS.each do |name|
  render_spot(name)
end