# Copyright (c) 2006, Chris Parsons (chris@edendevelopment.co.uk)
# All rights reserved.
# 
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
# 
# * Redistributions of source code must retain the above copyright notice,
#   this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright notice,
#   this list of conditions and the following disclaimer in the documentation
#   and/or other materials provided with the distribution.
# * Neither the name of Chris Parsons nor the names of its contributors may be
#   used to endorse or promote products derived from this software without
#   specific prior written permission.
# 
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES r OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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require 'invoice'

context 'A new invoice' do
  setup do
    @invoice = new_invoice do
      code 'edi0123-2323'
      address 'Artswork, Fairways House, Mount Pleasant Road, Southampton, SO14 OQB'
      date '20th Dec'
      vat 17.5
	
      work_at 25.00 do
    	  spent 1.5.on('Setting up')
    	  spent 1.5.on('Important work')
        spent 2.5.on('Making tea').on('14th Dec')
      end

      mileage_at 0.4 do
         drove 150.to('Meeting with client').on('23rd Dec')
      end
      
      expense 35.60.for('Another train ticket')
    end
  end
  
  specify 'should have the given address, date and vat' do
    @invoice.address.should_match(/Artswork/)
    @invoice.date.should_equal Time.parse('12/20/2006')
    @invoice.vat.should_equal 17.5
  end

  specify 'should have one expense line' do
    @invoice.should_have(1).expenses
  end

  specify 'should have an item count of 4' do
    @invoice.should_have(4).items
  end
  
  specify 'should have the second item as "Important work"' do
    @invoice.items[1].what.should_equal 'Important work'
  end
  
  specify 'should have the third item with a date' do
    @invoice.items[2].date.should_not_be_nil
    @invoice.items[2].date.should_equal Time.parse('14 Dec 06')
  end

  specify 'should have mileage line with date' do
    @invoice.items.last.what.should_equal 'Mileage: Meeting with client'
    @invoice.items.last.date.should_not_be_nil
    @invoice.items.last.date.should_equal Time.parse('23 Dec')
  end
  
  specify 'should have correct total' do
    @invoice.total.should_equal 5.5 * 25 + (150*0.4) + 35.60
  end

  specify 'should have correct vat value' do
    @invoice.total_vat.should_be_close((5.5 * 25 + 150 * 0.4) * 0.175, 0.01)
  end
end

context 'An invoice with timings' do
  setup do
    @invoice = new_invoice do
      work_at 200.dollars / day do
        spent 2.days.on('Procrastinating').on('7th Dec')
      end
    end
  end
  
  specify 'should have a total of 400' do
    @invoice.total.should_equal 400.dollars
    @invoice.total.should_not_equal 400.pounds

    "#{@invoice.total}".should_equal "400.00"
  end
  
  specify 'should have a "count" value in days' do
    @invoice.items.first.count.should_equal 2
  end
end

context 'An invoice with differing currencies' do
  setup do
    @invoice = new_invoice do
      1.pound('£') | 2.dollars('$')
      expense 25.pounds.on('A new bike')
    end
  end

  specify 'should have 2 pounds equals 4 dollars' do
    2.pounds.should_equal 4.dollars
    5.dollars.should_equal 2.5.pounds
    2.dollars.should_equal 1.pound
  end
  
  specify 'should have a total of 25 pounds' do
    @invoice.total.should_equal 25.pounds
  end
  
  specify 'should have a total of 50 dollars' do
    @invoice.total.should_equal 50.dollars
  end
  
  specify 'when told is in dollars, only print in dollars'do
    @invoice.currency :dollars
    @invoice.total.currency_symbol.should_equal '$'
    @invoice.total.to_f.should_equal 50.0
  end
end  

context 'An invoice with fixed entries' do
  setup do
    @invoice = new_invoice do
      add 1.of('Iteration Three').costing('750')
      add 3.of('Conkers').costing('0.50')
    end
  end
  
  specify 'should have two items' do
    @invoice.should_have(2).items
  end

  specify 'should have first entry totalling 750' do
    @invoice.items.first.total.should_equal 750
  end    
  
  specify 'should have total 751.50' do
    @invoice.total.should_equal 751.50
  end
end