【Challenge A/yoshifumi sawada】各プランの料金計算の実装

challengeA/yoshifumi_sawada/.rspec

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+--require spec_helper

challengeA/yoshifumi_sawada/Gemfile

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+# frozen_string_literal: true
+
+source "https://rubygems.org"
+
+git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
+
+# gem "rails"
+gem "rspec", ">= 3.0.0"
+gem 'pry', '~> 0.13.1'

challengeA/yoshifumi_sawada/Gemfile.lock

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+GEM
+  remote: https://rubygems.org/
+  specs:
+    coderay (1.1.3)
+    diff-lcs (1.4.4)
+    method_source (1.0.0)
+    pry (0.13.1)
+      coderay (~> 1.1)
+      method_source (~> 1.0)
+    rspec (3.10.0)
+      rspec-core (~> 3.10.0)
+      rspec-expectations (~> 3.10.0)
+      rspec-mocks (~> 3.10.0)
+    rspec-core (3.10.1)
+      rspec-support (~> 3.10.0)
+    rspec-expectations (3.10.1)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.10.0)
+    rspec-mocks (3.10.2)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.10.0)
+    rspec-support (3.10.2)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  pry (~> 0.13.1)
+  rspec (>= 3.0.0)
+
+BUNDLED WITH
+   2.1.4

challengeA/yoshifumi_sawada/csv/jxtg/basic_charge.csv

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+amp,basic_charge
+30,858
+40,1144
+50,1430
+60,1716

challengeA/yoshifumi_sawada/csv/jxtg/usage_charge.csv

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+kwh_from,kwh_to,unit_price
+0,120,19.88
+120,300,26.48
+300,600,25.08
+600,Float::INFINITY,26.15

challengeA/yoshifumi_sawada/csv/loop/basic_charge.csv

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+amp,basic_charge
+10,0
+15,0
+20,0
+30,0
+40,0
+50,0
+60,0

challengeA/yoshifumi_sawada/csv/loop/usage_charge.csv

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+kwh,unit_price
+0,26.4

challengeA/yoshifumi_sawada/csv/plans.csv

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+provider_name,plan_name
+東京電力エナジーパートナー,従量電灯B
+Looopでんき,おうちプラン
+東京ガス,ずっとも電気１
+JXTGでんき,従量電灯B たっぷりプラン

challengeA/yoshifumi_sawada/csv/tokyo_energy_partner/basic_charge.csv

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+amp,basic_charge
+10,286
+15,429
+20,572
+30,858
+40,1144
+50,1430
+60,1716

challengeA/yoshifumi_sawada/csv/tokyo_energy_partner/usage_charge.csv

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+kwh_from,kwh_to,unit_price
+0,120,19.88
+120,300,26.48
+300,Float::INFINITY,30.57

challengeA/yoshifumi_sawada/csv/tokyogas/basic_charge.csv

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+amp,basic_charge
+30,858
+40,1144
+50,1430
+60,1716

challengeA/yoshifumi_sawada/csv/tokyogas/usage_charge.csv

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+kwh_from,kwh_to,unit_price
+0,140,23.67
+140,350,23.88
+350,Float::INFINITY,26.41

challengeA/yoshifumi_sawada/lib/basic_charge.rb

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+require "csv"
+require "pry"
+
+class Basic_charge
+  def self.import(path)
+    if path[:path].include?("tokyo_energy_partner")
+    CSV.read("csv/tokyo_energy_partner/basic_charge.csv", headers: true).map do |row|
+      {
+        amp: row["amp"].to_i,
+        basic_charge: row["basic_charge"].to_i
+      }
+    end
+
+    elsif path[:path].include?("loop")
+    CSV.read("csv/loop/basic_charge.csv", headers: true).map do |row|
+      {
+        amp: row["amp"].to_i,
+        basic_charge: row["basic_charge"].to_i
+      }
+    end
+
+    elsif path[:path].include?("tokyogas")
+    CSV.read("csv/tokyogas/basic_charge.csv", headers: true).map do |row|
+      {
+        amp: row["amp"].to_i,
+        basic_charge: row["basic_charge"].to_i
+      }
+    end
+
+    elsif path[:path].include?("jxtg")
+    CSV.read("csv/jxtg/basic_charge.csv", headers: true).map do |row|
+      {
+        amp: row["amp"].to_i,
+        basic_charge: row["basic_charge"].to_i
+      }
+    end
+  end
+end
+end

challengeA/yoshifumi_sawada/lib/plan.rb

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+require "csv"
+require "pry"
+
+class Plan
+  def self.import(path)
+    # 全てを読込、配列を作成
+    CSV.read("csv/plans.csv", headers: true).map do |row|
+      {
+        provider_name: row["provider_name"],
+        plan_name: row["plan_name"]
+      }
+    end
+  end
+end

challengeA/yoshifumi_sawada/lib/simulator.rb

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+require "pry"
+require_relative "plan"
+require_relative "basic_charge"
+require_relative "usage_charge"
+
+class Simulator
+
+  def initialize(amp,usage_per_month)
+    @amp = amp
+    @usage_per_month = usage_per_month
+  end
+
+  def simulate
+    # 東京電力エナジーパートナー従量電灯Bの電気量料金のCSVデータをインポート
+    usage_datas = Usage_charge.import(path: "../csv/tokyo_energy_partner/usage_charge.csv")
+    # 東京電力エナジーパートナーの従量電灯Bの電気量料金
+    usage_charge1 = calculate(usage_datas)
+    # 東京ガスのずっとも電気１の電気量料金の電気量料金テーブルのCSVデータをインポート
+    usage_datas3 = Usage_charge.import(path: "../csv/tokyogas/usage_charge.csv")
+    # 東京ガスのずっとも電気１の電気量料金
+    usage_charge3 = calculate(usage_datas3)
+
+    # JXTGでんき 従量電灯B たっぷりプランの電気量料金の電気量料金テーブルのCSVデータをインポート
+    usage_datas4 = Usage_charge.import(path: "../csv/jxtg/usage_charge.csv")
+    # 東京ガスのずっとも電気１の電気量料金
+    usage_charge4 = calculate(usage_datas4)
+
+    # Looopでんきのおうちプランの電気量料金テーブルのCSVデータをインポート
+    usage_datas2 = Usage_charge.import(path: "../csv/loop/usage_charge.csv")
+    # Looopでんきのおうちプランの電気量料金の単価
+    usage_charge_data2 = usage_datas2.find { |data| data['kwh'] == 0.0 }
+    unit_price2 = usage_charge_data2["unit_price"]
+
+
+    # 基本料金テーブルのCSVデータをインポート
+    basic_charge_table  = Basic_charge.import(path: "../csv/tokyo_energy_partner/basic_charge.csv")
+    basic_charge_table2 = Basic_charge.import(path: "../csv/loop/basic_charge.csv")
+    basic_charge_table3 = Basic_charge.import(path: "../csv/tokyogas/basic_charge.csv")
+    basic_charge_table4 = Basic_charge.import(path: "../csv/jxtg/basic_charge.csv")
+
+
+    # プロバイダと料金プラン名のCSVデータをインポート
+    plan_datas = Plan.import(path: "csv/plans.csv")
+
+    # 該当プランに価格の計算結果のハッシュを追加
+    plan_list = plan_datas.each do |data|
+      case
+      when data[:provider_name] == "東京電力エナジーパートナー"
+      charge_data = basic_charge_table.find { |data| data[:amp] == @amp }
+      data[:price]= (charge_data[:basic_charge] + usage_charge1).floor.to_s
+
+      when data[:provider_name] == "Looopでんき"
+      charge_data2 = basic_charge_table2.find { |data| data[:amp] == @amp }
+      data[:price]= (charge_data2[:basic_charge] + @usage_per_month * unit_price2).floor.to_s
+
+      when data[:provider_name] == "東京ガス" && [30,40,50,60].include?(@amp)
+      charge_data3 = basic_charge_table3.find { |data| data[:amp] == @amp }
+      data[:price]= (charge_data3[:basic_charge] + usage_charge3).floor.to_s
+
+      when data[:provider_name] == "JXTGでんき" && [30,40,50,60].include?(@amp)
+      charge_data4 = basic_charge_table4.find { |data| data[:amp] == @amp }
+      data[:price]= (charge_data4[:basic_charge] + usage_charge4).floor.to_s
+      end
+    end
+
+    # priceキーに値が入ってるプランのみを表示
+    p output_array = plan_list.select{|plan| plan.has_key?(:price)}
+  end
+
+  private
+
+  # 段階別料金プランの計算
+  def calculate(usage_datas)
+    usage_charge = 0
+    usage_datas.each do |usage_data|
+    if usage_data['kwh_from'] < @usage_per_month && @usage_per_month <= usage_data['kwh_to']
+      usage_charge = usage_charge + usage_data['unit_price'] * (@usage_per_month - usage_data['kwh_from'])
+    elsif usage_data['kwh_to'] < @usage_per_month
+      usage_charge = usage_charge + usage_data['unit_price'] * (usage_data['kwh_to'] - usage_data['kwh_from'])
+    end
+    end
+  return usage_charge
+  end
+end
+
+# #****************実行部分***************************************************************
+
+
+# 契約アンペアを入力して頂く
+while true
+print "契約アンペアを入力して下さい > "
+  amp = gets.to_i
+  break if [10,15,20,30,40,50,60].include?(amp)
+    puts "10,15,20,30,40,50,60のいずれかを入力して下さい"
+end
+
+# 1ヶ月あたりの使用量を入力して頂く
+while true
+print "1ヶ月あたりの使用量を入力して下さい > "
+  usage_per_month = gets.to_i
+  break if usage_per_month >= 0
+    puts "0以上の値を入力して下さい"
+end
+
+# 入力値を引数にSimulatorクラスのインスタンスを生成
+simulator = Simulator.new(amp,usage_per_month)
+
+# インスタンスに対してsimulateメソッド(計算メソッド)を実行して出力結果を表示
+simulator.simulate

challengeA/yoshifumi_sawada/lib/usage_charge.rb

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+require "csv"
+require "pry"
+class Usage_charge
+  def self.import(path)
+  if path[:path].include?("tokyo_energy_partner")
+    list = []
+    CSV.foreach("csv/tokyo_energy_partner/usage_charge.csv", headers: true) do |row|
+    list << row.to_h.transform_values{|v|
+      case v
+      when "Float::INFINITY"
+        Float::INFINITY
+      else
+        v.to_f
+      end
+    }
+    end
+    return list
+
+  elsif path[:path].include?("loop")
+    list = []
+    CSV.foreach("csv/loop/usage_charge.csv", headers: true) do |row|
+    list << row.to_h.transform_values{|v|
+      case v
+      when "Float::INFINITY"
+        Float::INFINITY
+      else
+        v.to_f
+      end
+    }
+    end
+    return list
+
+  elsif  path[:path].include?("tokyogas")
+    list = []
+    CSV.foreach("csv/tokyogas/usage_charge.csv", headers: true) do |row|
+    list << row.to_h.transform_values{|v|
+      case v
+      when "Float::INFINITY"
+        Float::INFINITY
+      else
+        v.to_f
+      end
+    }
+    end
+    return list
+
+  elsif path[:path].include?("jxtg")
+    list = []
+    CSV.read("csv/jxtg/usage_charge.csv", headers: true).map do |row|
+    list << row.to_h.transform_values{|v|
+      case v
+      when "Float::INFINITY"
+        Float::INFINITY
+      else
+        v.to_f
+      end
+    }
+    end
+    return list
+  end
+  end
+end