Class: AirQualityIndex::NationwideAQI

Inherits:
Object
  • Object
show all
Defined in:
lib/air_quality_index/nationwide_aqi.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#fifth_city ⇒ Object

Returns the value of attribute fifth_city.



3
4
5
 
# File 'lib/air_quality_index/nationwide_aqi.rb', line 3

def fifth_city
  @fifth_city
end

#first_city ⇒ Object

Returns the value of attribute first_city.



3
4
5
 
# File 'lib/air_quality_index/nationwide_aqi.rb', line 3

def first_city
  @first_city
end

#fourth_city ⇒ Object

Returns the value of attribute fourth_city.



3
4
5
 
# File 'lib/air_quality_index/nationwide_aqi.rb', line 3

def fourth_city
  @fourth_city
end

#html ⇒ Object

Returns the value of attribute html.



3
4
5
 
# File 'lib/air_quality_index/nationwide_aqi.rb', line 3

def html
  @html
end

#national_aqi ⇒ Object

Returns the value of attribute national_aqi.



3
4
5
 
# File 'lib/air_quality_index/nationwide_aqi.rb', line 3

def national_aqi
  @national_aqi
end

#second_city ⇒ Object

Returns the value of attribute second_city.



3
4
5
 
# File 'lib/air_quality_index/nationwide_aqi.rb', line 3

def second_city
  @second_city
end

#selected_city ⇒ Object

Returns the value of attribute selected_city.



3
4
5
 
# File 'lib/air_quality_index/nationwide_aqi.rb', line 3

def selected_city
  @selected_city
end

#third_city ⇒ Object

Returns the value of attribute third_city.



3
4
5
 
# File 'lib/air_quality_index/nationwide_aqi.rb', line 3

def third_city
  @third_city
end

#todays_date ⇒ Object

sets today’s date for data output



28
29
30
 
# File 'lib/air_quality_index/nationwide_aqi.rb', line 28

def todays_date
  @todays_date
end

Instance Method Details

#aqi_message_set(index) ⇒ Object

set aqi messages based off of aqi index ranking



81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
 
# File 'lib/air_quality_index/nationwide_aqi.rb', line 81

def aqi_message_set(index)
  case index.to_i
    when 0..50
      "Good"
    when 51..100
      "Moderate"
    when 101..150
      "Unhealthy For Sensitive Groups"
    when 151..200
      "Unhealthy"
    when 201..300
      "Very Unhealthy"
    when 301 - 500
      "Hazardous"
    else
      "You are probably too dead to read this from all of the air pollution"
  end
end

#call ⇒ Object

instantiates a new pull from AirNow.gov for the top 5 current rankings on air pollution



6
7
8
9
10
11
 
# File 'lib/air_quality_index/nationwide_aqi.rb', line 6

def call

  self.get_nationwide_data
  puts self.todays_rankings_output
  self.get_more_info?
end

#get_more_info? ⇒ Boolean

asks user if they would like additional information on any of the ranked cities, if so, passes selected city instance to the local_aqi method call and then returns instance



101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
 
# File 'lib/air_quality_index/nationwide_aqi.rb', line 101

def get_more_info?

  puts "Would you like local information for any of the cities listed? Please enter a numerical value 1-5, type 'exit' to end program, or type any other key to return to previous menu."
  puts ""

  @selected_city = nil

  #gets user input
  user_input = gets.strip.downcase

  #depending on user input, sets new local aqi instance to city_info variable
  case user_input
    when '1'
      self.selected_city = AirQualityIndex::LocalAQI.new.call_from_ranking(self.first_city)
    when '2'
      self.selected_city = AirQualityIndex::LocalAQI.new.call_from_ranking(self.second_city)
    when '3'
      self.selected_city = AirQualityIndex::LocalAQI.new.call_from_ranking(self.third_city)
    when '4'
      self.selected_city = AirQualityIndex::LocalAQI.new.call_from_ranking(self.fourth_city)
    when '5'
      self.selected_city = AirQualityIndex::LocalAQI.new.call_from_ranking(self.fifth_city)
    when 'exit'
      exit!
    end

  #return city_info if user selected one
  self.selected_city.local_aqi_return unless self.selected_city.nil?

end

#get_nationwide_data ⇒ Object

sets instance variables for each piece of ranking data from scraped html



33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
 
# File 'lib/air_quality_index/nationwide_aqi.rb', line 33

def get_nationwide_data

  #scrape page for top ranking cities
  @html = AirQualityIndex::Scraper.new.nationwide_aqi_scraper

  #create and store first rank data
  @first_city = AirQualityIndex::City.new

  self.first_city.location_name_full = self.html.search("a.NtnlSummaryCity")[0].text.strip
  self.first_city.index = self.html.search("div.TabbedPanelsContent").children.css("tr td")[1].children.text.strip
  self.first_city.message = aqi_message_set(self.first_city.index)
  self.first_city.link = html.search("a.NtnlSummaryCity")[0]['href']

  #store second rank data
  @second_city = AirQualityIndex::City.new

  self.second_city.location_name_full = self.html.search("a.NtnlSummaryCity")[1].text.strip
  self.second_city.index = self.html.search("div.TabbedPanelsContent").children.css("tr td")[6].children.text.strip
  self.second_city.message = aqi_message_set(self.second_city.index)
  self.second_city.link = html.search("a.NtnlSummaryCity")[1]['href']

  #store third rank data
  @third_city = AirQualityIndex::City.new

  self.third_city.location_name_full = self.html.search("a.NtnlSummaryCity")[2].text.strip
  self.third_city.index = self.html.search("div.TabbedPanelsContent").children.css("tr td")[11].children.text.strip
  self.third_city.message = aqi_message_set(self.third_city.index)
  self.third_city.link = html.search("a.NtnlSummaryCity")[2]['href']

  #store fourth rank data
  @fourth_city = AirQualityIndex::City.new

  self.fourth_city.location_name_full = self.html.search("a.NtnlSummaryCity")[3].text.strip
  self.fourth_city.index = self.html.search("div.TabbedPanelsContent").children.css("tr td")[16].children.text.strip
  self.fourth_city.message = aqi_message_set(self.fourth_city.index)
  self.fourth_city.link = html.search("a.NtnlSummaryCity")[3]['href']

  #store fifth rank data
  @fifth_city = AirQualityIndex::City.new

  self.fifth_city.location_name_full = self.html.search("a.NtnlSummaryCity")[4].text.strip
  self.fifth_city.index = self.html.search("div.TabbedPanelsContent").children.css("tr td")[21].children.text.strip
  self.fifth_city.message = aqi_message_set(self.fifth_city.index)
  self.fifth_city.link = html.search("a.NtnlSummaryCity")[4]['href']

end

#todays_rankings_output ⇒ Object

outputs nationwide ranking information from scraped web data



14
15
16
17
18
19
20
21
22
23
24
25
 
# File 'lib/air_quality_index/nationwide_aqi.rb', line 14

def todays_rankings_output
  puts ""
  puts "Nationwide AQI Rankings for #{self.todays_date.month}/#{self.todays_date.day}/#{self.todays_date.year}"
  puts ""
  puts "  1. \#{self.first_city.location_name_full} - \#{self.first_city.index} (\#{self.first_city.message})\n  2. \#{self.second_city.location_name_full} - \#{self.second_city.index} (\#{self.second_city.message})\n  3. \#{self.third_city.location_name_full} - \#{self.third_city.index} (\#{self.third_city.message})\n  4. \#{self.fourth_city.location_name_full} - \#{self.fourth_city.index} (\#{self.fourth_city.message})\n  5. \#{self.fifth_city.location_name_full} - \#{self.fifth_city.index} (\#{self.fifth_city.message})\n  DOC\nend\n"