Make time dependent product categories work

app/models/product_category.rb

@@ -4,6 +4,9 @@ class ProductCategory
   property :name
   property :position, type: Fixnum, default: 0
   property :week_days, type: Array, default: Array.new(7, 1)
+  property :full_day, type: :boolean, default: true
+  property :start_from, type: Fixnum, default: 0
+  property :end_on, type: Fixnum, default: 2880 # Two days in minutes
 
   belongs_to :supplier
   has_and_belongs_to_many :products, storing_keys: true
@@ -13,7 +16,24 @@ class ProductCategory
   validates :name, presence: true
   validates :position, numericality: true
   validates :supplier_id, presence: true
+  validates :end_on, numericality: {less_than: 2880}, presence: {unless: :full_day?}
+
   view :by_supplier_id_and_id, key: [:supplier_id, :_id]
+  view :by_supplier_id_and_week_time, type: :custom, map_function: "function(doc){
+    if(doc.ruby_class == 'ProductCategory'){
+      for(var i=0;i<7;i++){
+        if(doc.full_day || !doc.end_on){
+          if(doc.week_days[i]) emit([doc.supplier_id, i], 1);
+        }else{
+          for(var j=(doc.start_from || 0);j < doc.end_on;j++){
+            if(doc.week_days[i]) emit([doc.supplier_id, i, j], 1);
+          }
+        }
+      }
+    }
+  }", reduce_function: :_sum
+
+  #start_key: [supplier_id, wday, minute], end_key: [supplier_id, wday, 2880, minute]
 
   #alias orignal_week_days= week_days=
   def week_days=(ary)
@@ -27,12 +47,14 @@ class ProductCategory
   def self.for_user(user, options = {})
     table = options[:table]
     raise "ProductCategory.for_user requires a table" unless table.present?
-    list = options[:list] || table.active_list
+    list = options[:list] || table.active_list # Performance option to specify it in stead of loading it
+    supplier = options[:supplier] || table.supplier # same as list
 
     # Get supplier objects
-    products = table.supplier.products
-    product_categories = table.supplier.product_categories || []
+    product_categories = for_supplier_in_time(supplier, options[:time])
 
+    # The following part is creating the products hash. This should not be performed here!!!!!! #TODO fix this!!!@@!!@@!!@
+    products = supplier.products
     # sort categories
     product_categories.sort_by!{|pc| (pc.position || 90000).to_i }
 
@@ -40,7 +62,7 @@ class ProductCategory
     other = product_categories.find(&:other?) || (product_categories << self.other).last # Container for non categorized products
 
     # Initialize base return object
-    h = {table_number: table.number, table_occupied: table.occupied?, supplier_name: table.supplier.name, my_list: list.try(:user_ids).to_a.include?(user.id)}
+    h = {table_number: table.number, table_occupied: table.occupied?, supplier_name: supplier.name, my_list: list.try(:user_ids).to_a.include?(user.id)}
 
     (products - product_categories.map(&:products).flatten).each{ |p| other.add_product(p) }
       
@@ -48,6 +70,20 @@ class ProductCategory
     h
   end
 
+  # time is not by default Time.now.utc since it can be specified as nil
+  def self.for_supplier_in_time(supplier, time = nil)
+    time ||= Time.now.utc
+    minute = (time.seconds_since_midnight/60).round
+    week_day = time.wday
+    if minute < supplier.night_offset
+      minute += 1440 # 1440 is 1 day in minutes 1.day/1.minute
+      week_day -= 1
+      week_day = 6 if week_day < 0 # Saturday
+    end
+    view_options = {reduce: false, include_docs: true}
+    database.view(by_supplier_id_and_week_time(view_options.merge(keys: [[supplier.id, week_day], [supplier.id, week_day, minute]])))
+  end
+
   def other?
     %w[other overig].include?(name.to_s.downcase)
   end

app/models/supplier.rb

@@ -7,7 +7,7 @@ class Supplier
   property :name
   property :open, type: :boolean, default: false
   property :time_zone, default: 'UTC'
-  property :night_offset, type: Fixnum, default: 0 # Hours
+  property :night_offset, type: Fixnum, default: 0 # Minutes
 
   #LOCATION
   property :lat, type: Float, default: 52.08062426379751