class CLI

# File lib/cli.rb, line 7
def initialize ()
        @windID = nil
        @tideID = nil
        @windLocation = nil
        @tideLocation = nil
end

# File lib/cli.rb, line 14
def main()
        input = nil
        input = decision("winds")
        return input if input == "exit"

        input = decision("tide")
        return input if input == "exit"

        input = observation_cycle
        input
end

# File lib/cli.rb, line 27
def decision(flag)
        input = nil
        iCaptured = nil
        puts
        puts "================================="
        puts "'Exit' will stop data collection."
        puts "================================="
        
        if flag.strip.downcase == "winds"
                stations = GetActiveStations.winds
        else
                stations = GetActiveStations.water_level
        end

        stations = stations.sort {|x,y| x.name <=> y.name}

        sz = stations.size
        until (input == "exit" || iCaptured)  
                puts         
                puts "Enter the index number of the #{flag.upcase} station you want to use."
                (1..sz).each do |i|
                        puts "#{i}. Station named '#{stations[i-1].name}'."
                end
                puts
                puts "Enter the index number of the #{flag.upcase} station you want to use."
                input = gets.strip.downcase
                iCaptured = (input == input.to_i.to_s) && input.to_i > 0 && input.to_i <= sz 
        end
        
        if input != "exit" && flag == "winds"
                sta = stations[input.to_i - 1]
                self.windLocation = sta.name
                self.windID = sta.iD
        elsif input != "exit"
                sta = stations[input.to_i - 1]
                self.tideLocation = sta.name
                self.tideID = sta.iD         
        end

        input 
end

# File lib/cli.rb, line 69
def observation_cycle()
        input = nil
        puts
        puts "================================="
        puts "'Exit' will stop data collection."
        puts "================================="
        puts
        
        gwl = GetWaterLevel.new
        gwv = GetWind.new
        
        until (input == "exit") do
                puts "Enter 'y' to pull wind and tide measurements."
                puts
                puts "***The NOAA Service Updates Every 6 Minutes***"
                puts

                input = gets.strip.downcase
                puts

                if input == "y"

                        wl_data = gwl.pull_data(self.tideID)
                        wv_data = gwv.pull_data(self.windID)
                        
                        wl = NOAA_SOAP.most_recent(wl_data)[0]
                        wv = NOAA_SOAP.most_recent(wv_data)[0]
                        
                        puts "Using #{self.windLocation}:"
                        puts "Wind station time is #{wv[:time_stamp]} GMT:"
                        puts "Wind speed is #{wv[:ws]} m\/s out of #{wv[:wd]} degrees."
                        puts "Gusts to #{wv[:wg]} m\/s are reported."
                        
                        
                        puts
                        puts "Using #{self.tideLocation}:"
                        puts "Tide station time is #{wl[:time_stamp]} GMT:"
                        puts "The water level is #{wl[:wl]} meters above/below sea level."
                        puts "Water level standard deviation is #{wl[:sigma]} meters."
                end
                puts 
        end
        input
end