// Copyright 2015 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 variable_test

import (
	"time"

	. "github.com/pingcap/check"
	"github.com/pingcap/parser/auth"
	"github.com/pingcap/tidb/util/execdetails"
	"github.com/pingcap/tidb/util/mock"
)

var _ = Suite(&testSessionSuite{})

type testSessionSuite struct {
}

func (*testSessionSuite) TestSession(c *C) {
	ctx := mock.NewContext()

	ss := ctx.GetSessionVars().StmtCtx
	c.Assert(ss, NotNil)

	// For AffectedRows
	ss.AddAffectedRows(1)
	c.Assert(ss.AffectedRows(), Equals, uint64(1))
	ss.AddAffectedRows(1)
	c.Assert(ss.AffectedRows(), Equals, uint64(2))

	// For RecordRows
	ss.AddRecordRows(1)
	c.Assert(ss.RecordRows(), Equals, uint64(1))
	ss.AddRecordRows(1)
	c.Assert(ss.RecordRows(), Equals, uint64(2))

	// For FoundRows
	ss.AddFoundRows(1)
	c.Assert(ss.FoundRows(), Equals, uint64(1))
	ss.AddFoundRows(1)
	c.Assert(ss.FoundRows(), Equals, uint64(2))

	// For UpdatedRows
	ss.AddUpdatedRows(1)
	c.Assert(ss.UpdatedRows(), Equals, uint64(1))
	ss.AddUpdatedRows(1)
	c.Assert(ss.UpdatedRows(), Equals, uint64(2))

	// For TouchedRows
	ss.AddTouchedRows(1)
	c.Assert(ss.TouchedRows(), Equals, uint64(1))
	ss.AddTouchedRows(1)
	c.Assert(ss.TouchedRows(), Equals, uint64(2))

	// For CopiedRows
	ss.AddCopiedRows(1)
	c.Assert(ss.CopiedRows(), Equals, uint64(1))
	ss.AddCopiedRows(1)
	c.Assert(ss.CopiedRows(), Equals, uint64(2))

	// For last insert id
	ctx.GetSessionVars().SetLastInsertID(1)
	c.Assert(ctx.GetSessionVars().StmtCtx.LastInsertID, Equals, uint64(1))

	ss.ResetForRetry()
	c.Assert(ss.AffectedRows(), Equals, uint64(0))
	c.Assert(ss.FoundRows(), Equals, uint64(0))
	c.Assert(ss.UpdatedRows(), Equals, uint64(0))
	c.Assert(ss.RecordRows(), Equals, uint64(0))
	c.Assert(ss.TouchedRows(), Equals, uint64(0))
	c.Assert(ss.CopiedRows(), Equals, uint64(0))
	c.Assert(ss.WarningCount(), Equals, uint16(0))
}

func (*testSessionSuite) TestSlowLogFormat(c *C) {
	ctx := mock.NewContext()

	seVar := ctx.GetSessionVars()
	c.Assert(seVar, NotNil)

	seVar.User = &auth.UserIdentity{Username: "root", Hostname: "192.168.0.1"}
	seVar.ConnectionID = 1
	seVar.CurrentDB = "test"
	seVar.InRestrictedSQL = true
	txnTS := uint64(406649736972468225)
	costTime := time.Second
	execDetail := execdetails.ExecDetails{
		ProcessTime:   time.Second * time.Duration(2),
		WaitTime:      time.Minute,
		BackoffTime:   time.Millisecond,
		RequestCount:  2,
		TotalKeys:     10000,
		ProcessedKeys: 20001,
	}
	resultString := `# Txn_start_ts: 406649736972468225
# User: root@192.168.0.1
# Conn_ID: 1
# Query_time: 1
# Process_time: 2 Wait_time: 60 Backoff_time: 0.001 Request_count: 2 Total_keys: 10000 Process_keys: 20001
# DB: test
# Index_ids: [1,2]
# Is_internal: true
select * from t;`
	logString := seVar.SlowLogFormat(txnTS, costTime, execDetail, "[1,2]", "select * from t")
	c.Assert(logString, Equals, resultString)
}