Merging pull request #175 from fga-gpp-mds/US21_manter_nota

Author: alaxalves

app/controllers/grades_controller.rb

@@ -0,0 +1,59 @@
+class GradesController < ApplicationController
+  include MetricHelper
+
+  before_action :set_grade, only: [:show, :update, :destroy]
+
+  before_action only: [:index, :create] do
+    validate_project(0, :project_id)
+  end
+
+  before_action only: [:show, :update] do
+    validate_grade(:id, 0)
+  end
+
+  def index
+    grade = @project.grade
+    render json: grade
+  end
+
+  def create
+    if @project.grade.blank?
+      grade = Grade.new(grade_params)
+      grade.project = @project
+
+      if grade.save
+        render json: grade, status: :created
+      else
+        render json: grade.errors, status: :unprocessable_entity
+      end
+    else
+      render json: @project.grade
+    end
+  end
+
+  def update
+    if @grade.update(grade_params)
+      render json: @grade
+    else
+      render json: @grade.errors, status: :unprocessable_entity
+    end
+  end
+
+  def show
+    final_metric = get_metrics(@grade)
+    render json: final_metric
+  end
+
+  def destroy
+    @grade.destroy
+  end
+
+  private
+    def grade_params
+      params.require(:grade).permit(:weight_debts, :weight_velocity, :weight_burndown)
+    end
+
+    def set_grade
+      @grade = Grade.find(params[:id])
+    end
+end

app/controllers/sprints_controller.rb

@@ -1,14 +1,16 @@
 class SprintsController < ApplicationController
   include ValidationsHelper
   include VelocityHelper
+  include BurndownHelper
+  include MetricHelper
 
   before_action :set_sprint, only: [:show, :update, :destroy, :get_burndown]
 
   before_action only: [:index, :create] do
     validate_release(0, :release_id)
   end
 
-  before_action only: [:show, :update, :destroy, :get_velocity] do
+  before_action only: [:show, :update, :destroy, :get_velocity, :get_metrics] do
     validate_sprint(:id, 0)
   end
 
@@ -68,45 +70,21 @@ def get_velocity
 
   def get_burndown
     project = @sprint.release.project
-    if project.is_scoring != false
-      total_points = 0
+    if project.is_scoring == true
       burned_stories = {}
       coordenates = []
       date_axis = []
       points_axis = []
       ideal_line = []
 
-      for story in @sprint.stories
-        total_points += story.story_points
+      total_points = get_total_points(@sprint)
+      burned_stories = get_burned_points(@sprint, burned_stories)
 
-        if story.pipeline == "Done"
-          if burned_stories[story.final_date] == nil
-            burned_stories[story.final_date] = story.story_points
-          else
-            burned_stories[story.final_date] += story.story_points
-          end
-        end
-      end
-      planned_points = total_points
-
-      range = (@sprint.initial_date .. @sprint.final_date)
-      range.each do |date|
-
-        if burned_stories[date] == nil
-          burned_stories[date] = total_points
-        else
-          total_points -= burned_stories[date]
-          burned_stories[date] = total_points
-        end
-        date_axis.push(date)
-        points_axis.push(burned_stories[date])
-      end
+      range_dates = (@sprint.initial_date .. @sprint.final_date)
 
+      set_dates_and_points(burned_stories, date_axis, points_axis, range_dates, total_points)
       days_of_sprint = date_axis.length - 1
-
-      for day in (days_of_sprint).downto(0)
-        ideal_line.push(planned_points * (day / (Float days_of_sprint)))
-      end
+      set_ideal_line(days_of_sprint, ideal_line, total_points)
 
       coordenates = { x: date_axis, y: points_axis, ideal_line: ideal_line }
 

app/controllers/stories_controller.rb

@@ -19,27 +19,27 @@ def index
   end
 
   def to_do_list
-    sprint = Sprint.find(params[:id])
+    @sprint = Sprint.find(params[:id])
 
-    stories = sprint.stories.select { |story| story.pipeline == "To Do" }
+    @stories = @sprint.stories.select { |story| story.pipeline == "To Do" }
 
-    render json: format_json_output(stories)
+    render json: format_json_output(@stories)
   end
 
   def doing_list
-    sprint = Sprint.find(params[:id])
+    @sprint = Sprint.find(params[:id])
 
-    stories = sprint.stories.select { |story| story.pipeline == "Doing" }
+    @stories = @sprint.stories.select { |story| story.pipeline == "Doing" }
 
-    render json: format_json_output(stories)
+    render json: format_json_output(@stories)
   end
 
   def done_list
-    sprint = Sprint.find(params[:id])
+    @sprint = Sprint.find(params[:id])
 
-    stories = sprint.stories.select { |story| story.pipeline == "Done" }
+    @stories = @sprint.stories.select { |story| story.pipeline == "Done" }
 
-    render json: format_json_output(stories)
+    render json: format_json_output(@stories)
   end
 
   def show

app/helpers/burndown_helper.rb

@@ -0,0 +1,48 @@
+module BurndownHelper
+  def check_pipeline(story, burned_stories)
+    if story.pipeline == "Done"
+      if burned_stories[story.final_date] == nil
+        burned_stories[story.final_date] = story.story_points
+      else
+        burned_stories[story.final_date] += story.story_points
+      end
+    end
+  end
+
+  def get_burned_points(sprint, burned_stories)
+    for story in sprint.stories
+      check_pipeline(story, burned_stories)
+    end
+
+    return burned_stories
+  end
+
+  def get_total_points(sprint)
+    total_points = 0
+
+    for story in sprint.stories
+      total_points += story.story_points
+    end
+
+    return total_points
+  end
+
+  def set_dates_and_points(burned_stories, date_axis, points_axis, range_dates, total_points)
+    range_dates.each do |date|
+      if burned_stories[date] == nil
+        burned_stories[date] = total_points
+      else
+        total_points -= burned_stories[date]
+        burned_stories[date] = total_points
+      end
+      date_axis.push(date)
+      points_axis.push(burned_stories[date])
+    end
+  end
+
+  def set_ideal_line(days_of_sprint, ideal_line, planned_points)
+    for day in (days_of_sprint).downto(0)
+      ideal_line.push(planned_points * (day / (Float days_of_sprint)))
+    end
+  end
+end

app/helpers/metric_helper.rb

@@ -0,0 +1,124 @@
+module MetricHelper
+  include BurndownHelper
+  include VelocityHelper
+
+  def get_metrics(grade)
+    last_release = grade.project.releases.last
+    if last_release.blank?
+      return nil
+    else
+      metrics = calculate_metrics(last_release)
+
+      if metrics.blank?
+        final_metric = 0
+      else
+        sum_of_weights = grade.weight_debts + grade.weight_velocity + grade.weight_burndown
+
+        final_metric = (Float (grade.weight_debts * metrics[:metric_debts_value]) +
+                              (grade.weight_velocity * metrics[:metric_velocity_value]) +
+                              (grade.weight_burndown * metrics[:metric_burndown_value])) /
+                              sum_of_weights
+      end
+
+      return final_metric.round(1)
+    end
+  end
+
+  def calculate_metrics(release)
+    sprint = release.sprints.last
+    if sprint.blank? || sprint.stories.blank?
+      return nil
+    else
+      if release.project.is_scoring == true
+        burned_stories = {}
+        date_axis = []
+        points_axis = []
+        ideal_line = []
+        metric_burndown_array = []
+        amount_of_sprints = release.sprints.count
+        metric_velocity_value = 0
+        planned_points = 0
+        burned_points = 0
+
+        velocity = get_sprints_informations(release.sprints, sprint)
+        total_points = get_total_points(sprint)
+        burned_stories = get_burned_points(sprint, burned_stories)
+        total_sprints_points = velocity[:total_points]
+        velocities = velocity[:velocities]
+
+        range_dates = (sprint.initial_date .. sprint.final_date)
+
+        set_dates_and_points(burned_stories, date_axis, points_axis, range_dates, total_points)
+        days_of_sprint = date_axis.length - 1
+        set_ideal_line(days_of_sprint, ideal_line, total_points)
+        ideal_burned_points = ideal_line[0] - ideal_line[1]
+
+        for i in 0..(date_axis.length - 2)
+          real_burned_points = points_axis[i] - points_axis[i + 1]
+          burned_percentage = Float((real_burned_points).abs * 100) / ideal_burned_points
+          metric_burndown_array.push(burned_percentage)
+        end
+
+        for i in 0..(amount_of_sprints - 1)
+          metric_velocity_value += (total_sprints_points[i] - velocities[i])
+        end
+
+        for i in 0..(release.sprints.length - 1)
+          planned_points += velocity[:total_points][i]
+          burned_points += velocity[:completed_points][i]
+        end
+
+        metric_burndown_value = calculate_burndown(metric_burndown_array)
+
+        metric_debts_value = Float(planned_points - burned_points) / planned_points
+        metric_debts_value = calculate_velocity_and_debt(metric_debts_value)
+
+        total_points = get_total_points_release(release)
+        metric_velocity_value = Float metric_velocity_value / total_points
+        metric_velocity_value = calculate_velocity_and_debt(metric_velocity_value)
+
+        return metrics = { metric_debts_value: metric_debts_value,
+                    metric_velocity_value: metric_velocity_value,
+                    metric_burndown_value: metric_burndown_value }
+      end
+    end
+  end
+
+  def calculate_velocity_and_debt(metric)
+    values = 0
+
+    if metric <= 0.2
+      values += 4
+    elsif metric <= 0.4
+      values += 3
+    elsif metric <= 0.6
+      values += 2
+    elsif metric <= 0.9
+      values += 1
+    elsif metric <= 1
+      values += 0
+    end
+
+    return values
+  end
+
+  def calculate_burndown(metric)
+    values = 0
+
+    for i in 0..(metric.length - 1)
+      if metric[i] <= 10 || metric[i] >= 200
+        values += 0
+      elsif metric[i] <= 40
+        values += 1
+      elsif metric[i] <= 60
+        values += 2
+      elsif metric[i] <= 80
+        values += 3
+      elsif metric[i] <= 100
+        values += 4
+      end
+    end
+
+    return Float values / metric.length
+  end
+end

app/helpers/validations_helper.rb

@@ -11,6 +11,10 @@ def project
     @project = Project.find(@release.project_id)
   end
 
+  def project_grade
+    @project = Project.find(@grade.project.id)
+  end
+
   def release
     @release = Release.find(@sprint.release_id)
   end
@@ -44,6 +48,12 @@ def verifies_id(current_id, previous_id, component_type)
     elsif component_type == "release" && previous_id != 0
       release_id = previous_id
       @release = Release.find(params[:release_id].to_i)
+    elsif component_type == "grade" && current_id != 0
+      id = current_id
+      @grade = Grade.find(params[:id].to_i)
+    elsif component_type == "grade" && previous_id != 0
+      grade_id = previous_id
+      @grade = Grade.find(params[:grade_id].to_i)
     elsif component_type == "sprint" && current_id != 0
       id = current_id
       @sprint = Sprint.find(params[:id].to_i)
@@ -76,6 +86,20 @@ def validate_project(id, project_id)
     end
   end
 
+
+  def validate_grade(id, grade_id)
+    current_user
+    verifies_id(id, grade_id, "grade")
+    project_grade
+    user
+
+    if @current_user.id == @user.id
+      return true
+    else
+      render json: { error: "Not Authorized" }, status: 401
+    end
+  end
+
   def validate_release(id, release_id)
     current_user
     verifies_id(id, release_id, "release")