// ==========================================================================
//  Squidex Headless CMS
// ==========================================================================
//  Copyright (c) Squidex UG (haftungsbeschraenkt)
//  All rights reserved. Licensed under the MIT license.
// ==========================================================================

using System.Collections.Generic;
using System.Linq;
using FluentAssertions;
using Squidex.Domain.Apps.Core.Schemas;
using Squidex.Domain.Apps.Core.TestHelpers;
using Squidex.Infrastructure.Collections;
using Squidex.Infrastructure.Validation;
using Xunit;

namespace Squidex.Domain.Apps.Entities.Schemas.DomainObject.Guards.FieldProperties
{
    public class StringFieldPropertiesTests : IClassFixture<TranslationsFixture>
    {
        [Fact]
        public void Should_add_error_if_min_length_greater_than_max()
        {
            var sut = new StringFieldProperties { MinLength = 10, MaxLength = 5 };

            var errors = FieldPropertiesValidator.Validate(sut).ToList();

            errors.Should().BeEquivalentTo(
                new List<ValidationError>
                {
                    new ValidationError("Max length must be greater or equal to min length.", "MinLength", "MaxLength")
                });
        }

        [Fact]
        public void Should_not_add_error_if_min_length_equal_to_max_length()
        {
            var sut = new StringFieldProperties { MinLength = 2, MaxLength = 2 };

            var errors = FieldPropertiesValidator.Validate(sut).ToList();

            Assert.Empty(errors);
        }

        [Fact]
        public void Should_add_error_if_min_characters_greater_than_max()
        {
            var sut = new StringFieldProperties { MinCharacters = 10, MaxCharacters = 5 };

            var errors = FieldPropertiesValidator.Validate(sut).ToList();

            errors.Should().BeEquivalentTo(
                new List<ValidationError>
                {
                    new ValidationError("Max characters must be greater or equal to min characters.", "MinCharacters", "MaxCharacters")
                });
        }

        [Fact]
        public void Should_not_add_error_if_min_characters_equal_to_max_characters()
        {
            var sut = new StringFieldProperties { MinCharacters = 2, MaxCharacters = 2 };

            var errors = FieldPropertiesValidator.Validate(sut).ToList();

            Assert.Empty(errors);
        }

        [Fact]
        public void Should_add_error_if_min_words_greater_than_max()
        {
            var sut = new StringFieldProperties { MinWords = 10, MaxWords = 5 };

            var errors = FieldPropertiesValidator.Validate(sut).ToList();

            errors.Should().BeEquivalentTo(
                new List<ValidationError>
                {
                    new ValidationError("Max words must be greater or equal to min words.", "MinWords", "MaxWords")
                });
        }

        [Fact]
        public void Should_not_add_error_if_min_words_equal_to_max_words()
        {
            var sut = new StringFieldProperties { MinWords = 2, MaxWords = 2 };

            var errors = FieldPropertiesValidator.Validate(sut).ToList();

            Assert.Empty(errors);
        }

        [Fact]
        public void Should_add_error_if_radio_button_has_no_allowed_values()
        {
            var sut = new StringFieldProperties { Editor = StringFieldEditor.Radio };

            var errors = FieldPropertiesValidator.Validate(sut).ToList();

            errors.Should().BeEquivalentTo(
                new List<ValidationError>
                {
                    new ValidationError("Radio buttons or dropdown list need allowed values.", "AllowedValues")
                });
        }

        [Fact]
        public void Should_add_error_if_editor_is_not_valid()
        {
            var sut = new StringFieldProperties { Editor = (StringFieldEditor)123 };

            var errors = FieldPropertiesValidator.Validate(sut).ToList();

            errors.Should().BeEquivalentTo(
                new List<ValidationError>
                {
                    new ValidationError("Editor is not a valid value.", "Editor")
                });
        }

        [Fact]
        public void Should_add_error_if_content_type_is_not_valid()
        {
            var sut = new StringFieldProperties { ContentType = (StringContentType)123 };

            var errors = FieldPropertiesValidator.Validate(sut).ToList();

            errors.Should().BeEquivalentTo(
                new List<ValidationError>
                {
                    new ValidationError("Content type is not a valid value.", "ContentType")
                });
        }

        [Fact]
        public void Should_add_error_if_pattern_is_not_valid_regex()
        {
            var sut = new StringFieldProperties { Pattern = "[0-9{1}" };

            var errors = FieldPropertiesValidator.Validate(sut).ToList();

            errors.Should().BeEquivalentTo(
                new List<ValidationError>
                {
                    new ValidationError("Pattern is not a valid value.", "Pattern")
                });
        }

        [Theory]
        [InlineData(StringFieldEditor.Markdown)]
        [InlineData(StringFieldEditor.Radio)]
        [InlineData(StringFieldEditor.RichText)]
        [InlineData(StringFieldEditor.TextArea)]
        public void Should_add_error_if_inline_editing_is_not_allowed_for_editor(StringFieldEditor editor)
        {
            var sut = new StringFieldProperties { InlineEditable = true, Editor = editor, AllowedValues = ImmutableList.Create("Value") };

            var errors = FieldPropertiesValidator.Validate(sut).ToList();

            errors.Should().BeEquivalentTo(
                new List<ValidationError>
                {
                    new ValidationError("Inline editing is only allowed for dropdowns, slugs and input fields.", "InlineEditable", "Editor")
                });
        }

        [Theory]
        [InlineData(StringFieldEditor.Dropdown)]
        [InlineData(StringFieldEditor.Input)]
        [InlineData(StringFieldEditor.Slug)]
        public void Should_not_add_error_if_inline_editing_is_allowed_for_editor(StringFieldEditor editor)
        {
            var sut = new StringFieldProperties { InlineEditable = true, Editor = editor, AllowedValues = ImmutableList.Create("Value") };

            var errors = FieldPropertiesValidator.Validate(sut).ToList();

            Assert.Empty(errors);
        }
    }
}