require 'test_helper'

module Schemacop
  module V3
    class StringNodeTest < V3Test
      def self.invalid_type_error(type)
        "Invalid type, got type \"#{type}\", expected \"string\"."
      end

      def test_basic
        schema :string
        assert_validation 'Hello World'
        assert_validation ''
        assert_json(type: :string)
      end

      def test_required
        schema :string, required: true
        assert_validation 'Hello World'
        assert_validation ''
        assert_validation nil do
          error '/', 'Value must be given.'
        end
      end

      def test_hash
        schema { str! :name }
        assert_validation name: 'Hello World'
        assert_json(type: :object, properties: { name: { type: :string } }, required: %i[name], additionalProperties: false)
      end

      def test_type
        schema :string

        assert_json(type: :string)

        assert_validation 42 do
          error '/', StringNodeTest.invalid_type_error(Integer)
        end

        schema { str! :name }

        assert_json(type: :object, properties: { name: { type: :string } }, required: %i[name], additionalProperties: false)

        assert_validation name: :foo do
          error '/name', StringNodeTest.invalid_type_error(Symbol)
        end

        assert_validation name: 234 do
          error '/name', StringNodeTest.invalid_type_error(Integer)
        end
      end

      def test_min_length
        schema :string, min_length: 5

        assert_json(type: :string, minLength: 5)

        assert_validation '12345'
        assert_validation '12345678'

        assert_validation '1234' do
          error '/', 'String is 4 characters long but must be at least 5.'
        end

        assert_validation '' do
          error '/', 'String is 0 characters long but must be at least 5.'
        end
      end

      def test_max_length
        schema :string, max_length: 5

        assert_json(type: :string, maxLength: 5)

        assert_validation ''
        assert_validation '12345'
        assert_validation '1234'

        assert_validation '123456' do
          error '/', 'String is 6 characters long but must be at most 5.'
        end
      end

      def test_pattern_as_string
        schema :string, pattern: '^a_.*_z$'

        assert_json(type: :string, pattern: '^a_.*_z$')

        assert_validation 'a__z'
        assert_validation 'a_ foo bar _z'
        assert_validation '' do
          error '/', 'String does not match pattern "^a_.*_z$".'
        end
        assert_validation 'a_ _zfoo' do
          error '/', 'String does not match pattern "^a_.*_z$".'
        end
      end

      def test_pattern_as_regexp
        schema :string, pattern: /^a_.*_z$/i

        assert_json(type: :string, pattern: '^(?i)(a_.*_z)$')

        assert_validation 'a__z'
        assert_validation 'a__Z'
        assert_validation 'a_ foo bar _Z'
        assert_validation '' do
          error '/', 'String does not match pattern "^(?i)(a_.*_z)$".'
        end
        assert_validation 'a_ _zfoo' do
          error '/', 'String does not match pattern "^(?i)(a_.*_z)$".'
        end
      end

      def test_format_date
        schema :string, format: :date

        assert_json(type: :string, format: :date)

        assert_validation '2020-01-13'
        assert_validation '2020-02-29'
        assert_validation '2021-02-29' # Leap years are not validated

        assert_validation '2020-13-29' do
          error '/', 'String does not match format "date".'
        end

        assert_validation 'foo 2020-01-29 bar' do
          error '/', 'String does not match format "date".'
        end

        assert_cast(nil, nil)
        assert_cast('2020-01-13', Date.new(2020, 1, 13))
      end

      def test_format_date_time
        schema :string, format: :date_time

        assert_json(type: :string, format: :'date-time')

        assert_validation '2018-11-13T20:20:39+00:00'
        assert_validation '2018-11-13T20:20:39Z'

        assert_validation '2020-13-29' do
          error '/', 'String does not match format "date-time".'
        end

        assert_validation '2018-13-13T20:20:39+00:00' do
          error '/', 'String does not match format "date-time".'
        end

        assert_validation '2018-11-13T20:20:39Y' do
          error '/', 'String does not match format "date-time".'
        end

        assert_cast(nil, nil)
        assert_cast('2018-11-13T20:20:39+00:00', DateTime.new(2018, 11, 13, 20, 20, 39))
      end

      def test_format_email
        schema :string, format: :email

        assert_json(type: :string, format: :email)

        assert_validation 'john.doe@example.com'
        assert_validation 'john.doe+foo-bar_baz@example.com'
        assert_validation 'JOHN.DOE+FOO-BAR_BAZ@EXAMPLE.COM'

        assert_validation 'someemail' do
          error '/', 'String does not match format "email".'
        end

        assert_validation 'john doe@example.com' do
          error '/', 'String does not match format "email".'
        end

        assert_validation '@john@example.com' do
          error '/', 'String does not match format "email".'
        end

        assert_cast(nil, nil)
        assert_cast('john.doe@example.com', 'john.doe@example.com')
      end

      def test_format_symbol
        schema :string, format: :symbol

        assert_json(type: :string, format: :symbol)

        assert_validation 'foobar'
        assert_validation ''

        assert_validation 234 do
          error '/', StringNodeTest.invalid_type_error(Integer)
        end

        assert_cast(nil, nil)
        assert_cast('foobar', :foobar)
        assert_cast('039n23$g- sfk3/', :'039n23$g- sfk3/')
      end

      def test_format_integer_list
        schema :string, format: :integer_list

        assert_json(type: :string, format: :'integer-list')

        assert_validation '1,2,3,4'
        assert_validation '1,2,-3,-54'
        assert_validation '2'
        assert_validation '-2'

        assert_validation 234 do
          error '/', StringNodeTest.invalid_type_error(Integer)
        end

        assert_validation 'sd sfdij soidf' do
          error '/', 'String does not match format "integer-list".'
        end

        assert_cast nil,      nil
        assert_cast '1,-2,3', [1, -2, 3]
        assert_cast '1',      [1]
        assert_cast '-1',     [-1]
      end

      def test_enum
        schema :string, enum: ['foo', 'some string', 'some other string', 42]

        assert_json(type: :string, enum: ['foo', 'some string', 'some other string', 42])

        assert_validation 'foo'
        assert_validation 'some string'
        assert_validation 'some other string'

        assert_validation 'fooo' do
          error '/', 'Value not included in enum ["foo", "some string", "some other string", 42].'
        end

        assert_validation 'other value' do
          error '/', 'Value not included in enum ["foo", "some string", "some other string", 42].'
        end

        # Integer value 42 is in the enum of allowed values, but it's not a string,
        # so the validation still fails
        assert_validation 42 do
          error '/', StringNodeTest.invalid_type_error(Integer)
        end
      end

      def test_boolean_casting
        schema :string, format: :boolean

        assert_json(type: :string, format: :boolean)

        assert_cast 'true', true
        assert_cast 'false', false

        assert_cast nil, nil
      end

      def test_time_casting
        schema :string, format: :time
        assert_json(type: :string, format: :time)
        assert_cast '20:30:39+00:00', Time.strptime('20:30:39+00:00', '%H:%M:%S%z')

        assert_cast nil, nil
      end

      def test_date_casting
        schema :string, format: :date
        assert_json(type: :string, format: :date)
        assert_cast '2018-11-13', Date.new(2018, 11, 13)

        assert_cast nil, nil
      end

      def test_date_time_casting
        schema :string, format: :date_time
        assert_json(type: :string, format: :'date-time')
        assert_cast '2018-11-13T20:20:39+00:00', DateTime.new(2018, 11, 13, 20, 20, 39)
        assert_cast '2018-11-13T20:20:39Z', DateTime.new(2018, 11, 13, 20, 20, 39)
        assert_cast '2018-11-13T20:20:39+01:00', DateTime.new(2018, 11, 13, 20, 20, 39, '+1')

        assert_cast nil, nil
      end

      def test_email_casting
        schema :string, format: :email
        assert_json(type: :string, format: :email)
        assert_cast 'support@example.com', 'support@example.com'

        assert_cast nil, nil
      end

      def test_default
        schema :string, default: 'Hello'

        assert_json(
          type:    :string,
          default: 'Hello'
        )

        assert_validation(nil)
        assert_validation('Foo')
        assert_validation(5) do
          error '/', StringNodeTest.invalid_type_error(Integer)
        end

        assert_cast('Foo', 'Foo')
        assert_cast(nil, 'Hello')
      end

      def test_default_casting
        schema :string, format: :integer, default: '42'

        assert_json(
          type:    :string,
          format:  :integer,
          default: '42'
        )

        assert_validation(nil)
        assert_validation('123')
        assert_validation(5) do
          error '/', StringNodeTest.invalid_type_error(Integer)
        end

        assert_cast('123', 123)
        assert_cast(nil, 42)
      end

      # Helper function that checks for all the options if the option is
      # an integer or something else, in which case it needs to raise
      def validate_self_should_error(value_to_check)
        assert_raises_with_message Exceptions::InvalidSchemaError,
                                   'Option "min_length" must be an "integer"' do
          schema :string, min_length: value_to_check
        end

        assert_raises_with_message Exceptions::InvalidSchemaError,
                                   'Option "max_length" must be an "integer"' do
          schema :string, max_length: value_to_check
        end
      end

      def test_validate_self
        assert_raises_with_message Exceptions::InvalidSchemaError,
                                   'Format "not-existing" is not supported.' do
          schema :string, format: :not_existing
        end

        assert_raises_with_message Exceptions::InvalidSchemaError,
                                   'Option "min_length" can\'t be greater than "max_length".' do
          schema :string, min_length: 5, max_length: 4
        end

        assert_raises_with_message Exceptions::InvalidSchemaError,
                                   'Option "pattern" must be a string or Regexp.' do
          schema :string, pattern: 42
        end

        assert_raises_with_message Exceptions::InvalidSchemaError,
                                   'Option "pattern" can\'t be parsed: end pattern '\
                                   'with unmatched parenthesis: /(abcde/.' do
          schema :string, pattern: '(abcde'
        end

        validate_self_should_error(1.0)
        validate_self_should_error(4r)
        validate_self_should_error(true)
        validate_self_should_error(false)
        validate_self_should_error(Object.new)
        validate_self_should_error((4 + 6i))
        validate_self_should_error('13')
        validate_self_should_error('Lorem ipsum')
      end

      def test_enum_schema
        schema :string, enum: [1, 2, 'foo', :bar, { qux: 42 }]

        assert_json({
                      type: :string,
                      enum: [1, 2, 'foo', :bar, { qux: 42 }]
                    })

        assert_validation(nil)
        assert_validation('foo')

        # Even we put those types in the enum, they need to fail the validations,
        # as they are not strings
        assert_validation(1) do
          error '/', StringNodeTest.invalid_type_error(Integer)
        end
        assert_validation(:bar) do
          error '/', StringNodeTest.invalid_type_error(Symbol)
        end
        assert_validation({ qux: 42 }) do
          error '/', StringNodeTest.invalid_type_error(Hash)
        end

        # These need to fail validation, as they are not in the enum list
        assert_validation('bar') do
          error '/', 'Value not included in enum [1, 2, "foo", :bar, {:qux=>42}].'
        end
        assert_validation('Lorem ipsum') do
          error '/', 'Value not included in enum [1, 2, "foo", :bar, {:qux=>42}].'
        end
      end

      def test_with_generic_keywords
        schema :string, enum:        [1, 'foo'],
                        title:       'String schema',
                        description: 'String schema holding generic keywords',
                        examples:    [
                          'foo'
                        ]

        assert_json({
                      type:        :string,
                      enum:        [1, 'foo'],
                      title:       'String schema',
                      description: 'String schema holding generic keywords',
                      examples:    [
                        'foo'
                      ]
                    })
      end

      def test_cast_empty_or_whitespace_string
        schema :string

        assert_cast(nil, nil)
        assert_cast('', '')
        assert_cast('    ', '    ')
        assert_cast("\n", "\n")
        assert_cast("\t", "\t")
      end

      def test_cast_empty_or_whitespace_string_required
        schema :string, required: true

        assert_validation(nil) do
          error '/', 'Value must be given.'
        end

        assert_cast('', '')
        assert_cast('    ', '    ')
        assert_cast("\n", "\n")
        assert_cast("\t", "\t")
      end

      def test_empty_or_whitespace_string_blank_not_allowed
        schema :string, allow_blank: false

        assert_validation(nil) do
          error '/', 'String is blank but must not be blank!'
        end

        assert_validation('') do
          error '/', 'String is blank but must not be blank!'
        end

        assert_validation('   ') do
          error '/', 'String is blank but must not be blank!'
        end

        assert_validation("\n") do
          error '/', 'String is blank but must not be blank!'
        end

        assert_validation("\t") do
          error '/', 'String is blank but must not be blank!'
        end
      end
    end
  end
end