Branches - Eve: Ride share

ride_share.rb

@@ -0,0 +1,124 @@
+def main()
+  drivers = 
+  {
+    DR0004: [
+      {
+        date: "3rd Feb 2016",
+        cost: 5,
+        rider: "RD0022",
+        rating: 5
+      },
+      {
+        date: "4th Feb 2016",
+        cost: 10,
+        rider: "RD0022",
+        rating: 4
+      },
+      {
+        date: "5th Feb 2016",
+        cost: 20,
+        rider: "RD0073",
+        rating: 5
+      }
+    ],   
+    DR0001: [
+      {
+        date: "3rd Feb 2016",
+        cost: 10,
+        rider: "RD0003",
+        rating: 3
+      },
+      {
+        date: "3rd Feb 2016",
+        cost: 30,
+        rider: "RD0015",
+        rating: 4
+      },
+      {
+        date: "5th Feb 2016",
+        cost: 45,
+        rider: "RD0003",
+        rating: 2
+      }
+    ],
+    DR0002: [
+      {
+        date: "3rd Feb 2016",
+        cost: 25,
+        rider: "RD0073",
+        rating: 5
+      },
+      {
+        date: "4th Feb 2016",
+        cost: 15,
+        rider: "RD0013",
+        rating: 1
+      },
+      {
+        date: "5th Feb 2016",
+        cost: 35,
+        rider: "RD0066",
+        rating: 3
+      }
+    ],
+    DR0003: [
+      {
+        date: "4th Feb 2016",
+        cost: 5,
+        rider: "RD0066",
+        rating: 5
+      },
+      {
+        date: "5th Feb 2016",
+        cost: 50,
+        rider: "RD0003",
+        rating: 2
+      }
+    ] 
+  }
+
+  highest_earning = 0
+  highest_average_rating = 0
+  richest_driver = nil
+  favorite_driver = nil
+
+  drivers.each do |driver, trips|  
+    # for each of driver, get an array of ratings for all their trips
+    ratings = trips.map { |trip| trip[:rating] } 
+    # for each of driver, get an array of cost for all their trips
+    earnings = trips.map { |trip| trip[:cost] }
+
+    total_earning = earnings.sum   
+    average_rating = ratings.sum / trips.length    
+    puts "Driver #{driver.to_s} earned $#{total_earning} over #{trips.length} trips, average rating: #{average_rating}"
+
+    # find richest_driver
+    if highest_earning < total_earning
+      highest_earning = total_earning
+      richest_driver = driver.to_s
+    end
+
+    # find favorite_driver
+    if highest_average_rating < average_rating
+      highest_average_rating = average_rating
+      favorite_driver = driver.to_s
+    end  
+
+    # for each driver, iterate through trips, return hash of {date: earning_each_day}
+    date_and_earnings = {}
+    trips.each do |trip|
+      if date_and_earnings.has_key? trip[:date]
+        date_and_earnings[trip[:date]] += trip[:cost]
+      else
+        date_and_earnings[trip[:date]] = trip[:cost]
+      end
+    end  
+    date_made_most_money = date_and_earnings.max[0]   
+    puts "Driver #{driver.to_s} made the most money on #{date_made_most_money}"
+  end
+
+  puts "\nThe richest driver: #{richest_driver}"
+  puts "The highest rating driver: #{favorite_driver}"
+end
+
+main()