require 'orbit_form_helper'
class VenueManagementBill
  include Mongoid::Document
  include Mongoid::Timestamps
  include Mongoid::Enum
  BILLTYPE = {'venue_fee'=>["usage_fee", "royalties", "admin_fee", "land_rent"],'utility_bill'=>['electricity','water'],'tax'=>['house_tax','land_tax'],'prejudgment_interest'=>["usage_fee", "royalties", "admin_fee", "land_rent",'electricity','water','house_tax','land_tax','other'],'other'=>['penalty','other']}
  CACULATIONBASISTYPE = {'revenue'=>{'revenue'=>{},'level_0'=>{'fields'=>['field_value','percent']},'level_1'=>{'fields'=>['field_value','percent']},'level_2'=>{'fields'=>['field_value','percent']},'level_3'=>{'fields'=>['field_value','percent']},'level_4'=>{'fields'=>['field_value','percent']},'level_5'=>{'fields'=>['field_value','percent']}},
                      'degree'=>{'current_degree'=>{'float'=>'left'},'consumption'=>{'float'=>'left','clear'=>true,'no_margin'=>true},'level_0'=>{'fields'=>['field_value','dollar/degree']},'level_1'=>{'fields'=>['field_value','dollar/degree']},'level_2'=>{'fields'=>['field_value','dollar/degree']},'level_3'=>{'fields'=>['field_value','dollar/degree']}},
                      'actual_bill'=>{'bill_amount'=>{}},
                      'fixed'=>{'amount'=>{}},
                      'taxable_present_value'=>{'present_value'=>{},'taxable_area'=>{'unit'=>'㎡'},'taxable_tax'=>{}},
                      'announced_land_values'=>{'land_values'=>{},'taxable_area'=>{'unit'=>'㎡'},'taxable_tax'=>{}},
                      'other'=>{'amount'=>{}}}
  CACILATYIONFORMULA = {'revenue'=>"
    field_values.push(revenue)
    percents.push(0)
    result = -inner_product(field_values,percents)
    f=field_values.shift(1)
    field_values.push(f[0])
    result += inner_product(field_values,percents)
    result = result / 100",
    "degree"=>"
    field_values.push(consumption)
    dollardegrees.push(0)
    result = -inner_product(field_values,dollardegrees)
    f=field_values.shift(1)
    field_values.push(f[0])
    result += inner_product(field_values,dollardegrees)
    ",
    "actual_bill"=>"
    result = bill_amount",
    "fixed"=>"
    result = amount",
    "taxable_present_value"=>"
    result = taxable_tax",
    "announced_land_values"=>"
    result = taxable_tax",
    "other"=>"
    result = amount"
  }
  CACULATIONBASIS = {'revenue'=>"revenue",
    "degree"=>"consumption",
    "fixed"=>"amount",
    "taxable_present_value"=>"present_value",
    "announced_land_values"=>"land_values",
    "other"=>"amount"
  }
  field :accounting_month, type: Date, default: Time.now
  field :bill_typeA, type: String, default: ""
  field :bill_typeB, type: String, default: ""
  field :bill_other, type: String, default: "", localize: true
  field :caculation_basis_type, type: String, default: ""
  field :caculation_basis, type: String, default: ""
  field :reason, type: String, default: "", localize: true
  field :amount, type: Integer, default: 0
  field :deadline, type: Date, default: Time.now
  field :received_date, type: Date, default: Time.now
  field :pay_method, type: String, default: "", localize: true
  field :note, type: String, default: "", localize: true
  field :revenue
  field :bill_amount
  field :level_0
  field :level_1
  field :level_2
  field :level_3
  field :level_4
  field :level_5
  field :current_degree
  field :consumption
  field :tax_excluded, type: Boolean, default: false
  field :total_amount
  field :actual_amount
  field :tax
  field :present_value
  field :taxable_area
  field :land_values
  field :taxable_tax
  belongs_to :venue_management_main
  include VenueLinkFile
  # after_initialize do |record|
  #   if record.caculation_basis_type == "degree"
  #     if record.caculation_basis != "" && record.consumption.blank?
  #       record.update(:consumption => record.caculation_basis)
  #     end
  #   elsif record.caculation_basis_type == "revenue"
  #     if record.caculation_basis != "" && record.revenue.blank?
  #       record.update(:revenue => record.caculation_basis)
  #     end
  #   end
  # end
  def display_caculation_basis
    caculation_basis_val = eval("#{self.class::CACULATIONBASIS[self.caculation_basis_type]}")
    return "#{I18n.t("vm_bill.#{self.caculation_basis_type}")}: #{caculation_basis_val}"
  end
  def display_accounting_month
    return (self.accounting_month.strftime("%Y-%m") rescue "")
  end
  def case_no
    return (self.contractor.case_no rescue "")
  end
  def contractor
    return self.venue_management_main.venue_management_contracts.where(:contract_start_date.lte=>self.accounting_month,:contract_end_date.gte=>self.accounting_month).first
  end
  def pay_date
    return "#{self.deadline}/#{self.received_date}"
  end
  def inner_product(a,b)
    result = 0
    a.each.with_index{|v,i| result += v*b[i] if b[i].present?}
    return result
  end
end