using System.Globalization;
using System.Linq;
using Microsoft.EntityFrameworkCore;
using Xunit;

namespace EFCore.NamingConventions.Test
{
    public class LowerCaseNamingTest : RewriterTestBase
    {
        [Fact]
        public void Table_name_is_rewritten()
        {
            using var context = CreateContext();
            var entityType = context.Model.FindEntityType(typeof(SimpleBlog));
            Assert.Equal("simpleblog", entityType.GetTableName());
        }

        [Fact]
        public void Column_name_is_rewritten()
        {
            using var context = CreateContext();
            var entityType = context.Model.FindEntityType(typeof(SimpleBlog));
            Assert.Equal("id", entityType.FindProperty("Id").GetColumnName());
            Assert.Equal("fullname", entityType.FindProperty("FullName").GetColumnName());
        }

        [Fact]
        public void Column_name_is_rewritten_in_turkish()
        {
            using var context = CreateContext(CultureInfo.CreateSpecificCulture("tr-TR"));
            var entityType = context.Model.FindEntityType(typeof(SimpleBlog));
            Assert.Equal("ıd", entityType.FindProperty("Id").GetColumnName());
            Assert.Equal("fullname", entityType.FindProperty("FullName").GetColumnName());
        }

        [Fact]
        public void Column_name_is_rewritten_in_invariant()
        {
            using var context = CreateContext(CultureInfo.InvariantCulture);
            var entityType = context.Model.FindEntityType(typeof(SimpleBlog));
            Assert.Equal("id", entityType.FindProperty("Id").GetColumnName());
            Assert.Equal("fullname", entityType.FindProperty("FullName").GetColumnName());
        }

        [Fact]
        public void Primary_key_name_is_rewritten()
        {
            using var context = CreateContext();
            var entityType = context.Model.FindEntityType(typeof(SimpleBlog));
            Assert.Equal("pk_simpleblog", entityType.GetKeys().Single(k => k.IsPrimaryKey()).GetName());
        }

        [Fact]
        public void Alternative_key_name_is_rewritten()
        {
            using var context = CreateContext();
            var entityType = context.Model.FindEntityType(typeof(SimpleBlog));
            Assert.Equal("ak_simpleblog_somealternativekey", entityType.GetKeys().Single(k => !k.IsPrimaryKey()).GetName());
        }

        [Fact]
        public void Foreign_key_name_is_rewritten()
        {
            using var context = CreateContext();
            var entityType = context.Model.FindEntityType(typeof(Post));
            Assert.Equal("fk_post_simpleblog_blogid", entityType.GetForeignKeys().Single().GetConstraintName());
        }

        [Fact]
        public void Index_name_is_rewritten()
        {
            using var context = CreateContext();
            var entityType = context.Model.FindEntityType(typeof(SimpleBlog));
            Assert.Equal("ix_simpleblog_fullname", entityType.GetIndexes().Single().GetDatabaseName());
        }

        TestContext CreateContext(CultureInfo culture = null)
            => new TestContext(builder => builder.UseLowerCaseNamingConvention(culture));
    }
}