using FreeSql.DataAnnotations;
using System;
using System.Collections.Generic;
using Xunit;

namespace FreeSql.Tests.Sqlite3 {
	public class SqliteUpdateTest {
		IUpdate<Topic> update => g.sqlite3.Update<Topic>();

		[Table(Name = "tb_topic")]
		class Topic {
			[Column(IsIdentity = true, IsPrimary = true)]
			public int Id { get; set; }
			public int? Clicks { get; set; }
			public TestTypeInfo Type { get; set; }
			public string Title { get; set; }
			public DateTime CreateTime { get; set; }
		}
 
		[Fact]
		public void Dywhere() {
			Assert.Null(g.sqlite3.Update<Topic>().ToSql());
			Assert.Equal("UPDATE \"tb_topic\" SET title='test' \r\nWHERE (\"Id\" = 1 OR \"Id\" = 2)", g.sqlite3.Update<Topic>(new[] { 1, 2 }).SetRaw("title='test'").ToSql());
			Assert.Equal("UPDATE \"tb_topic\" SET title='test1' \r\nWHERE (\"Id\" = 1)", g.sqlite3.Update<Topic>(new Topic { Id = 1, Title = "test" }).SetRaw("title='test1'").ToSql());
			Assert.Equal("UPDATE \"tb_topic\" SET title='test1' \r\nWHERE (\"Id\" = 1 OR \"Id\" = 2)", g.sqlite3.Update<Topic>(new[] { new Topic { Id = 1, Title = "test" }, new Topic { Id = 2, Title = "test" } }).SetRaw("title='test1'").ToSql());
			Assert.Equal("UPDATE \"tb_topic\" SET title='test1' \r\nWHERE (\"Id\" = 1)", g.sqlite3.Update<Topic>(new { id = 1 }).SetRaw("title='test1'").ToSql());
		}

		[Fact]
		public void SetSource() {
			var sql = update.SetSource(new Topic { Id = 1, Title = "newtitle" }).ToSql().Replace("\r\n", "");
			Assert.Equal("UPDATE \"tb_topic\" SET \"Clicks\" = :p_0, \"Title\" = :p_1, \"CreateTime\" = :p_2 WHERE (\"Id\" = 1)", sql);

			var items = new List<Topic>();
			for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100 });

			sql = update.SetSource(items).ToSql().Replace("\r\n", "");
			Assert.Equal("UPDATE \"tb_topic\" SET \"Clicks\" = CASE \"Id\" WHEN 1 THEN :p_0 WHEN 2 THEN :p_1 WHEN 3 THEN :p_2 WHEN 4 THEN :p_3 WHEN 5 THEN :p_4 WHEN 6 THEN :p_5 WHEN 7 THEN :p_6 WHEN 8 THEN :p_7 WHEN 9 THEN :p_8 WHEN 10 THEN :p_9 END, \"Title\" = CASE \"Id\" WHEN 1 THEN :p_10 WHEN 2 THEN :p_11 WHEN 3 THEN :p_12 WHEN 4 THEN :p_13 WHEN 5 THEN :p_14 WHEN 6 THEN :p_15 WHEN 7 THEN :p_16 WHEN 8 THEN :p_17 WHEN 9 THEN :p_18 WHEN 10 THEN :p_19 END, \"CreateTime\" = CASE \"Id\" WHEN 1 THEN :p_20 WHEN 2 THEN :p_21 WHEN 3 THEN :p_22 WHEN 4 THEN :p_23 WHEN 5 THEN :p_24 WHEN 6 THEN :p_25 WHEN 7 THEN :p_26 WHEN 8 THEN :p_27 WHEN 9 THEN :p_28 WHEN 10 THEN :p_29 END WHERE (\"Id\" IN (1,2,3,4,5,6,7,8,9,10))", sql);

			sql = update.SetSource(items).IgnoreColumns(a => new { a.Clicks, a.CreateTime }).ToSql().Replace("\r\n", "");
			Assert.Equal("UPDATE \"tb_topic\" SET \"Title\" = CASE \"Id\" WHEN 1 THEN :p_0 WHEN 2 THEN :p_1 WHEN 3 THEN :p_2 WHEN 4 THEN :p_3 WHEN 5 THEN :p_4 WHEN 6 THEN :p_5 WHEN 7 THEN :p_6 WHEN 8 THEN :p_7 WHEN 9 THEN :p_8 WHEN 10 THEN :p_9 END WHERE (\"Id\" IN (1,2,3,4,5,6,7,8,9,10))", sql);

			sql = update.SetSource(items).Set(a => a.CreateTime, new DateTime(2020,1,1)).ToSql().Replace("\r\n", "");
			Assert.Equal("UPDATE \"tb_topic\" SET \"CreateTime\" = :p_0 WHERE (\"Id\" IN (1,2,3,4,5,6,7,8,9,10))", sql);
		}
		[Fact]
		public void IgnoreColumns() {
			var sql = update.SetSource(new Topic { Id = 1, Title = "newtitle" }).IgnoreColumns(a => new { a.Clicks, a.CreateTime }).ToSql().Replace("\r\n", "");
			Assert.Equal("UPDATE \"tb_topic\" SET \"Title\" = :p_0 WHERE (\"Id\" = 1)", sql);
		}
		[Fact]
		public void Set() {
			var sql = update.Where(a => a.Id == 1).Set(a => a.Title, "newtitle").ToSql().Replace("\r\n", "");
			Assert.Equal("UPDATE \"tb_topic\" SET \"Title\" = :p_0 WHERE (\"Id\" = 1)", sql);

			sql = update.Where(a => a.Id == 1).Set(a => a.Title, "newtitle").Set(a => a.CreateTime, new DateTime(2020, 1, 1)).ToSql().Replace("\r\n", "");
			Assert.Equal("UPDATE \"tb_topic\" SET \"Title\" = :p_0, \"CreateTime\" = :p_1 WHERE (\"Id\" = 1)", sql);

			sql = update.Set(a => a.Clicks * 10 / 1).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
			Assert.Equal("UPDATE \"tb_topic\" SET \"Clicks\" = nvl(\"Clicks\", 0) * 10 / 1 WHERE (\"Id\" = 1)", sql);

			sql = update.Set(a => a.Id - 10).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
			Assert.Equal("UPDATE \"tb_topic\" SET \"Id\" = \"Id\" - 10 WHERE (\"Id\" = 1)", sql);

			int incrv = 10;
			sql = update.Set(a => a.Clicks * incrv / 1).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
			Assert.Equal("UPDATE \"tb_topic\" SET \"Clicks\" = nvl(\"Clicks\", 0) * 10 / 1 WHERE (\"Id\" = 1)", sql);

			sql = update.Set(a => a.Id - incrv).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
			Assert.Equal("UPDATE \"tb_topic\" SET \"Id\" = \"Id\" - 10 WHERE (\"Id\" = 1)", sql);
		}
		[Fact]
		public void SetRaw() {
			var sql = update.Where(a => a.Id == 1).SetRaw("clicks = clicks + :incrClick", new { incrClick = 1 }).ToSql().Replace("\r\n", "");
			Assert.Equal("UPDATE \"tb_topic\" SET clicks = clicks + :incrClick WHERE (\"Id\" = 1)", sql);
		}
		[Fact]
		public void Where() {
			var sql = update.Where(a => a.Id == 1).SetRaw("title='newtitle'").ToSql().Replace("\r\n", "");
			Assert.Equal("UPDATE \"tb_topic\" SET title='newtitle' WHERE (\"Id\" = 1)", sql);

			sql = update.Where("id = :id", new { id = 1 }).SetRaw("title='newtitle'").ToSql().Replace("\r\n", "");
			Assert.Equal("UPDATE \"tb_topic\" SET title='newtitle' WHERE (id = :id)", sql);

			var item = new Topic { Id = 1, Title = "newtitle" };
			sql = update.Where(item).SetRaw("title='newtitle'").ToSql().Replace("\r\n", "");
			Assert.Equal("UPDATE \"tb_topic\" SET title='newtitle' WHERE (\"Id\" = 1)", sql);

			var items = new List<Topic>();
			for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100 });
			sql = update.Where(items).SetRaw("title='newtitle'").ToSql().Replace("\r\n", "");
			Assert.Equal("UPDATE \"tb_topic\" SET title='newtitle' WHERE (\"Id\" IN (1,2,3,4,5,6,7,8,9,10))", sql);
		}
		[Fact]
		public void WhereExists() {

		}
		[Fact]
		public void ExecuteAffrows() {

		}
		[Fact]
		public void ExecuteUpdated() {

		}
	}
}