Ride Share App - Nora

worksheet_Nora_R.rb

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+########################################################
+# Step 1: Establish the layers
+
+# In this section of the file, as a series of comments,
+# create a list of the layers you identify.
+
+# DriverID array > Rides array > HASH :Date :Cost :Rider_ID :Rating
+
+# Drivers [driver_data] - array
+# drives - array
+# hash of ride info (:Date :Cost :Rider_ID :Rating)
+
+# Which layers are nested in each other?
+
+# ride data (date/cost/rider/rating) inside of drives inside of drivers
+
+# Which layers of data "have" within it a different layer?
+
+# QUESTION how is this question different than above?
+
+# Which layers are "next" to each other?
+
+# The ride info is next to each other on the same level
+
+########################################################
+# Step 2: Assign a data structure to each layer
+
+# Copy your list from above, and in this section
+# determine what data structure each layer should have
+
+# Drivers [driver_data] - array
+# drives - array
+# hash of ride info (:Date :Cost :Rider_ID :Rating)
+
+########################################################
+# Step 3: Make the data structure!
+
+# Setup the entire data structure:
+# based off of the notes you have above, create the
+# and manually write in data presented in rides.csv
+# You should be copying and pasting the literal data
+# into this data structure, such as "DR0004"
+# and "3rd Feb 2016" and "RD0022"
+
+driver_data = {
+  DR0001: [
+    {
+      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: 2,
+    },
+  ],
+  DR0002: [
+    {
+      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,
+    },
+  ],
+  DR0003: [
+    {
+      date: "4th Feb 2016",
+      cost: 5,
+      rider_id: "RD0066",
+      rating: 5,
+    },
+    {
+      date: "5th Feb 2016",
+      cost: 50,
+      rider_id: "RD0003",
+      rating: 2,
+    },
+  ],
+  DR0004: [
+    {
+      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,
+    },
+  ],
+}
+
+# puts "This code is working."
+
+########################################################
+# Step 4: Total Driver's Earnings and Number of Rides
+
+# Use iteration blocks to print the following answers:
+# - the number of rides each driver has given
+
+driver_calcs = []
+driver_data.each do |driver, rides|
+  money_earned = 0
+  total_rating = 0.0
+  rides.each do |ride|
+    money_earned += ride[:cost]
+    total_rating += ride[:rating]
+  end
+  driver_calcs << { driver_data: driver, num_rides: rides.size, driver_money: money_earned, driver_rating: (total_rating / rides.size) }
+end
+
+def print_variables(array, variable, descriptor)
+  array.each do |key, value|
+    puts "- ID #{key[:driver_data]}: #{key[variable]} #{descriptor}"
+  end
+end
+
+puts "How many rides has each driver given?"
+print_variables(driver_calcs, :num_rides, "rides")
+
+# - the total amount of money each driver has made
+
+puts "How much total money has each driver earned?"
+print_variables(driver_calcs, :driver_money, "dollars")
+
+# - the average rating for each driver
+
+rating_sentences = []
+puts "What's each driver's average rating?"
+driver_calcs.each do |key, value|
+  puts "- The driver with ID #{key[:driver_data]} has an average rating of #{key[:driver_rating].round(1)}."
+end
+
+# - Which driver made the most money?
+top_money = 0
+top_money_id = ""
+driver_calcs.each do |key, value|
+  if key[:driver_money] > top_money
+    top_money_id = key[:driver_data]
+    top_money = key[:driver_money]
+  end
+end
+
+puts "The driver with the highest earnings has ID # #{top_money_id}. They earned $#{top_money}."
+
+# - Which driver has the highest average rating?
+
+top_rating = 0.0
+top_rating_id = ""
+driver_calcs.each do |key, value|
+  if key[:driver_rating] > top_rating
+    top_rating_id = key[:driver_data]
+    top_rating = key[:driver_rating]
+  end
+end
+
+puts "The driver with the highest average rating has ID # #{top_rating_id}. They earned #{top_rating.round(1)} stars."