// Copyright 2018 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.

package executor_test

import (
	. "github.com/pingcap/check"
	"github.com/pingcap/tidb/table"
	"github.com/pingcap/tidb/terror"
	"github.com/pingcap/tidb/util/testkit"
)

func (s *testSuite) TestInsertOnDuplicateKey(c *C) {
	tk := testkit.NewTestKit(c, s.store)
	tk.MustExec("use test")

	tk.MustExec(`drop table if exists t1, t2;`)
	tk.MustExec(`create table t1(a1 bigint primary key, b1 bigint);`)
	tk.MustExec(`create table t2(a2 bigint primary key, b2 bigint);`)
	tk.MustExec(`insert into t1 values(1, 100);`)
	tk.MustExec(`insert into t2 values(1, 200);`)

	tk.MustExec(`insert into t1 select a2, b2 from t2 on duplicate key update b1 = a2;`)
	tk.MustQuery(`select * from t1;`).Check(testkit.Rows("1 1"))

	tk.MustExec(`insert into t1 select a2, b2 from t2 on duplicate key update b1 = b2;`)
	tk.MustQuery(`select * from t1;`).Check(testkit.Rows("1 200"))

	tk.MustExec(`insert into t1 select a2, b2 from t2 on duplicate key update a1 = a2;`)
	tk.MustQuery(`select * from t1;`).Check(testkit.Rows("1 200"))

	tk.MustExec(`insert into t1 select a2, b2 from t2 on duplicate key update b1 = 300;`)
	tk.MustQuery(`select * from t1;`).Check(testkit.Rows("1 300"))

	tk.MustExec(`insert into t1 values(1, 1) on duplicate key update b1 = 400;`)
	tk.MustQuery(`select * from t1;`).Check(testkit.Rows("1 400"))

	tk.MustExec(`insert into t1 select 1, 500 from t2 on duplicate key update b1 = 400;`)
	tk.MustQuery(`select * from t1;`).Check(testkit.Rows("1 400"))

	tk.MustExec(`drop table if exists t1, t2;`)
	tk.MustExec(`create table t1(a bigint primary key, b bigint);`)
	tk.MustExec(`create table t2(a bigint primary key, b bigint);`)
	_, err := tk.Exec(`insert into t1 select * from t2 on duplicate key update c = t2.b;`)
	c.Assert(err.Error(), Equals, `[planner:1054]Unknown column 'c' in 'field list'`)

	tk.MustExec(`drop table if exists t1, t2;`)
	tk.MustExec(`create table t1(a bigint primary key, b bigint);`)
	tk.MustExec(`create table t2(a bigint primary key, b bigint);`)
	_, err = tk.Exec(`insert into t1 select * from t2 on duplicate key update a = b;`)
	c.Assert(err.Error(), Equals, `[planner:1052]Column 'b' in field list is ambiguous`)

	tk.MustExec(`drop table if exists t1, t2;`)
	tk.MustExec(`create table t1(a bigint primary key, b bigint);`)
	tk.MustExec(`create table t2(a bigint primary key, b bigint);`)
	_, err = tk.Exec(`insert into t1 select * from t2 on duplicate key update c = b;`)
	c.Assert(err.Error(), Equals, `[planner:1054]Unknown column 'c' in 'field list'`)

	tk.MustExec(`drop table if exists t1, t2;`)
	tk.MustExec(`create table t1(a1 bigint primary key, b1 bigint);`)
	tk.MustExec(`create table t2(a2 bigint primary key, b2 bigint);`)
	_, err = tk.Exec(`insert into t1 select * from t2 on duplicate key update a1 = values(b2);`)
	c.Assert(err.Error(), Equals, `[planner:1054]Unknown column 'b2' in 'field list'`)

	tk.MustExec(`drop table if exists t1, t2;`)
	tk.MustExec(`create table t1(a1 bigint primary key, b1 bigint);`)
	tk.MustExec(`create table t2(a2 bigint primary key, b2 bigint);`)
	tk.MustExec(`insert into t1 values(1, 100);`)
	tk.MustExec(`insert into t2 values(1, 200);`)
	tk.MustExec(`insert into t1 select * from t2 on duplicate key update b1 = values(b1) + b2;`)
	tk.MustQuery(`select * from t1`).Check(testkit.Rows("1 400"))
	tk.MustExec(`insert into t1 select * from t2 on duplicate key update b1 = values(b1) + b2;`)
	tk.MustQuery(`select * from t1`).Check(testkit.Rows("1 400"))
}

func (s *testSuite) TestInsertWrongValueForField(c *C) {
	tk := testkit.NewTestKit(c, s.store)
	tk.MustExec("use test")
	tk.MustExec(`drop table if exists t1;`)
	tk.MustExec(`create table t1(a bigint);`)
	_, err := tk.Exec(`insert into t1 values("asfasdfsajhlkhlksdaf");`)
	c.Assert(terror.ErrorEqual(err, table.ErrTruncatedWrongValueForField), IsTrue)
}