require 'pathname'
require Pathname(__FILE__).dirname.expand_path.parent + 'spec_helper'

module TypecastBypassSetter
  # Bypass typecasting so we can set values for specs
  def set(attributes)
    attributes.each do |k,v|
      instance_variable_set("@#{k}", v)
    end
  end
end

class SailBoat
  include DataMapper::Resource
  property :id,            Integer,    :key => true
  property :name,          String,                                :nullable => false,     :validates       => :presence_test
  property :description,   String,     :length => 10,                                     :validates       => :length_test_1
  property :notes,         String,     :length => 2..10,                                  :validates       => :length_test_2
  property :no_validation, String,                                                        :auto_validation => false
  property :salesman,      String,                                :nullable => false,     :validates       => [:multi_context_1, :multi_context_2]
  property :code,          String,     :format => Proc.new { |code| code =~ /A\d{4}\z/ }, :validates       => :format_test
  property :allow_nil,     String,     :size => 5..10,            :nullable => true,      :validates       => :nil_test
  property :build_date,    Date,                                                          :validates       => :primitive_test
  property :float,         Float,      :precision => 2, :scale => 1
  property :big_decimal,   BigDecimal, :precision => 2, :scale => 1

  include TypecastBypassSetter
end

class HasNullableBoolean
  include DataMapper::Resource
  property :id,   Integer, :key => true
  property :bool, Boolean # :nullable => true by default

  include TypecastBypassSetter
end

class HasNotNullableBoolean
  include DataMapper::Resource
  property :id,   Integer, :key => true
  property :bool, Boolean, :nullable => false

  include TypecastBypassSetter
end

class HasNotNullableParanoidBoolean
  include DataMapper::Resource
  property :id,   Integer,         :key => true
  property :bool, ParanoidBoolean, :nullable => false

  include TypecastBypassSetter
end

describe "Automatic Validation from Property Definition" do
  it "should have a hook for adding auto validations called from
      DataMapper::Property#new" do
    SailBoat.should respond_to(:auto_generate_validations)
  end

  it "should auto add a validates_is_present when property has option
      :nullable => false" do
    validator = SailBoat.validators.context(:presence_test).first
    validator.should be_kind_of(DataMapper::Validate::RequiredFieldValidator)
    validator.field_name.should == :name

    boat = SailBoat.new
    boat.valid_for_presence_test?.should == false
    boat.name = 'Float'
    boat.valid_for_presence_test?.should == true
  end

  it "should auto add a validates_length for maximum size on String properties" do
    # max length test max=10
    boat = SailBoat.new
    boat.valid_for_length_test_1?.should == true  #no minimum length
    boat.description = 'ABCDEFGHIJK' #11
    boat.valid_for_length_test_1?.should == false
    boat.description = 'ABCDEFGHIJ' #10
    boat.valid_for_length_test_1?.should == true
  end

  it "should auto add validates_length within a range when option :length
      or :size is a range" do
    # Range test notes = 2..10
    boat = SailBoat.new
    boat.should be_valid_for_length_test_2
    boat.notes = 'AB' #2
    boat.should be_valid_for_length_test_2
    boat.notes = 'ABCDEFGHIJK' #11
    boat.should_not be_valid_for_length_test_2
    boat.notes = 'ABCDEFGHIJ' #10
    boat.should be_valid_for_length_test_2
  end

  it "should auto add a validates_format if the :format option is given" do
    # format test - format = /A\d{4}\z/   on code
    boat = SailBoat.new
    boat.should be_valid_for_format_test
    boat.code = 'A1234'
    boat.should be_valid_for_format_test
    boat.code = 'BAD CODE'
    boat.should_not be_valid_for_format_test
  end

  it "should auto validate all strings for max length" do
    klass = Class.new do
      include DataMapper::Resource
      property :id, Integer, :serial => true
      property :name, String
    end
    t = klass.new(:id => 1)
    t.should be_valid
    t.name = 'Lip­smackin­thirst­quenchin­acetastin­motivatin­good­buzzin­cool­talkin­high­walkin­fast­livin­ever­givin­cool­fizzin'
    t.should_not be_valid
    t.errors.full_messages.should include('Name must be less than 50 characters long')
  end

  it "should auto validate the primitive type" do
    validator = SailBoat.validators.context(:primitive_test).first
    validator.should be_kind_of(DataMapper::Validate::PrimitiveValidator)
    boat = SailBoat.new
    boat.should be_valid_for_primitive_test
    boat.build_date = 'ABC'
    boat.should_not be_valid_for_primitive_test
  end

  it "should not auto add any validators if the option :auto_validation => false was given" do
    klass = Class.new do
      include DataMapper::Resource
      property :id,   Integer,     :serial   => true,  :auto_validation => false
      property :name, String,      :nullable => false, :auto_validation => false
      property :bool, DM::Boolean, :nullable => false, :auto_validation => false
    end
    klass.new.valid?.should == true
  end

  it "should auto add range checking the length of a string while still allowing null values" do
    boat = SailBoat.new
    boat.allow_nil = 'ABC'
    boat.should_not be_valid_for_nil_test
    boat.errors.on(:allow_nil).should include('Allow nil must be between 5 and 10 characters long')

    boat.allow_nil = 'ABCDEFG'
    boat.should be_valid_for_nil_test

    boat.allow_nil = 'ABCDEFGHIJKLMNOP'
    boat.should_not be_valid_for_nil_test
    boat.errors.on(:allow_nil).should include('Allow nil must be between 5 and 10 characters long')

    boat.allow_nil = nil
    boat.should be_valid_for_nil_test
  end

  describe 'for Integer properties' do
    before do
      @boat = SailBoat.new
    end

    it 'should allow integers' do
      @boat.set(:id => 1)
      @boat.should be_valid
    end

    it 'should not allow floats' do
      @boat.set(:id => 1.0)
      @boat.should_not be_valid
      @boat.errors.on(:id).should == [ 'Id must be an integer' ]
    end

    it 'should not allow decimals' do
      @boat.set(:id => BigDecimal('1'))
      @boat.should_not be_valid
      @boat.errors.on(:id).should == [ 'Id must be an integer' ]
    end
  end

  describe 'for nullable Boolean properties' do
    before do
      @boat = HasNullableBoolean.new(:id => 1)
    end

    it 'should allow true' do
      @boat.set(:bool => true)
      @boat.should be_valid
    end

    it 'should allow false' do
      @boat.set(:bool => false)
      @boat.should be_valid
    end

    it 'should allow nil' do
      @boat.set(:bool => nil)
      @boat.should be_valid
    end
  end

  describe 'for non-nullable Boolean properties' do
    before do
      @boat = HasNotNullableBoolean.new(:id => 1)
    end

    it 'should allow true' do
      @boat.set(:bool => true)
      @boat.should be_valid
    end

    it 'should allow false' do
      @boat.set(:bool => false)
      @boat.should be_valid
    end

    it 'should not allow nil' do
      @boat.set(:bool => nil)
      @boat.should_not be_valid
    end
  end

  describe 'for non-nullable ParanoidBoolean properties' do
    before do
      @boat = HasNotNullableParanoidBoolean.new(:id => 1)
    end

    it 'should allow true' do
      @boat.set(:bool => true)
      @boat.should be_valid
    end

    it 'should allow false' do
      @boat.set(:bool => false)
      @boat.should be_valid
    end

    it 'should not allow nil' do
      @boat.set(:bool => nil)
      @boat.should_not be_valid
    end
  end

  { :float => Float, :big_decimal => BigDecimal }.each do |column,type|
    describe "for #{type} properties" do
      before do
        @boat = SailBoat.new(:id => 1)
      end

      it 'should allow integers' do
        @boat.set(column => 1)
        @boat.should be_valid
      end

      it 'should allow floats' do
        @boat.set(column => '1.0')
        @boat.should be_valid
      end

      it 'should allow decimals' do
        @boat.set(column => BigDecimal('1'))
        @boat.should be_valid
      end
    end
  end
end