Pipes - Tamira - Ride-share

worksheet.rb

@@ -1,12 +1,17 @@
 ########################################################
 # Step 1: Establish the layers
 
-  # Write a list of the layers here
+  # Write a list of the layers here:
+      #Data as a whole, list of drivers, list of each drivers rides and their associated data 
 
 ########################################################
 # Step 2: Assign a data structure to each layer
 
-  # Copy your list from above, and write what data structure each layer should have
+  # Copy your list from above, and write what data structure each layer should have:
+    #Data as a whole should be a hash
+    #The list of drivers should be the keys in the outermost hash
+    #The data for all the drivers rides should be listed as an array of hashes, with each ride represented as a hash. 
+
 
 ########################################################
 # Step 3: Make the data structure!
@@ -17,3 +22,54 @@
 # Step 4: Total Divers Earnings and Number of Rides
 
   # Use an iteration block to print driver's total rides and money made
+
+
+driver_data = {
+    DR001: [
+      { date: "3rd Feb 2016", cost: 10, rider_id: "RD0003", rating: 3 },
+      { date: "3rd Feb 2016", cost: 30, rider_id: "RD0015", rating: 4 },
+      { date: "5th Feb 2016", cost: 45 , rider_id: "RD0003", rating: 5 }
+    ] ,
+    DR002: [
+      { date: "3rd Feb 2016", cost: 25, rider_id: "RD0073", rating: 5 },
+      { date: "4th Feb 2016", cost: 15, rider_id: "RD0013", rating: 1 },
+      { date: "5th Feb 2016", cost: 35 , rider_id: "RD0066", rating: 3 }
+    ],
+    DR003: [
+      { date: "4th Feb 2016", cost: 5 , rider_id: "RD0066", rating: 5 },
+      { date: "5th Feb 2016", cost: 50 , rider_id: "RD0003", rating: 2 }
+    ],
+    DR004: [
+      { date: "3rd Feb 2016", cost: 5, rider_id: "RD0022", rating: 5 },
+      { date: "4th Feb 2016", cost: 10, rider_id: "RD0022", rating: 4 },
+      { date: "5th Feb 2016", cost: 20 , rider_id: "RD0073", rating: 5 }
+    ]
+  }
+
+def driver_info(data)
+  array_ratings = Array.new
+  x = 0
+  av_rating = 0
+  total_rating = 0
+
+  data.each do |key, value|
+    id = key
+    number_of_rides = value.length
+
+    value.each do |k, v|
+      # Hash.merge will run the block that follows it if it finds a diplicate key
+      # We don't need an initial value for inject because it is ok to treat the first key as memo
+      x = value.inject{|key_name, element| key_name.merge( element ){|k, old_v, new_v| old_v + new_v}}
+
+      k.each do |a, b|
+        if a == :rating
+          array_ratings << b
+          av_rating =  x[:rating]  / array_ratings.length
+        end
+      end
+    end
+    puts "Driver #{id} gave #{number_of_rides} ride(s), earned $#{x[:cost]}, and has an average rating of #{av_rating}"
+  end
+end
+
+driver_info(driver_data)