// Copyright 2019 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 admin_test

import (
	. "github.com/pingcap/check"
	"github.com/pingcap/tidb/domain"
	"github.com/pingcap/tidb/kv"
	"github.com/pingcap/tidb/session"
	"github.com/pingcap/tidb/store/mockstore"
	"github.com/pingcap/tidb/store/mockstore/mocktikv"
	"github.com/pingcap/tidb/util/testkit"
)

var _ = Suite(&testAdminSuite{})

type testAdminSuite struct {
	cluster   *mocktikv.Cluster
	mvccStore mocktikv.MVCCStore
	store     kv.Storage
	domain    *domain.Domain
}

func (s *testAdminSuite) SetUpSuite(c *C) {
	s.cluster = mocktikv.NewCluster()
	mocktikv.BootstrapWithSingleStore(s.cluster)
	s.mvccStore = mocktikv.MustNewMVCCStore()
	store, err := mockstore.NewMockTikvStore(
		mockstore.WithCluster(s.cluster),
		mockstore.WithMVCCStore(s.mvccStore),
	)
	c.Assert(err, IsNil)
	s.store = store
	session.SetSchemaLease(0)
	session.DisableStats4Test()
	d, err := session.BootstrapSession(s.store)
	c.Assert(err, IsNil)
	d.SetStatsUpdating(true)
	s.domain = d
}

func (s *testAdminSuite) TearDownSuite(c *C) {
	s.domain.Close()
	s.store.Close()
}

func (s *testAdminSuite) TestAdminCheckTable(c *C) {
	// test NULL value.
	tk := testkit.NewTestKit(c, s.store)
	tk.MustExec("use test")
	// test index column has pk-handle column
	tk.MustExec("drop table if exists t")
	tk.MustExec("create table t(a bigint unsigned primary key, b int, c int, index idx(a, b));")
	tk.MustExec("insert into t values(1, 1, 1)")
	tk.MustExec("admin check table t")

	// test for add index on the later added columns.
	tk.MustExec("drop table if exists t1;")
	tk.MustExec("CREATE TABLE t1 (c1 int);")
	tk.MustExec("INSERT INTO t1 SET c1 = 1;")
	tk.MustExec("ALTER TABLE t1 ADD COLUMN cc1 CHAR(36)    NULL DEFAULT '';")
	tk.MustExec("ALTER TABLE t1 ADD COLUMN cc2 VARCHAR(36) NULL DEFAULT ''")
	tk.MustExec("ALTER TABLE t1 ADD INDEX idx1 (cc1);")
	tk.MustExec("ALTER TABLE t1 ADD INDEX idx2 (cc2);")
	tk.MustExec("admin check table t1;")

	// For add index on virtual column
	tk.MustExec("drop table if exists t1;")
	tk.MustExec(`create table t1 (
		a int             as (JSON_EXTRACT(k,'$.a')),
		c double          as (JSON_EXTRACT(k,'$.c')),
		d decimal(20,10)  as (JSON_EXTRACT(k,'$.d')),
		e char(10)        as (JSON_EXTRACT(k,'$.e')),
		f date            as (JSON_EXTRACT(k,'$.f')),
		g time            as (JSON_EXTRACT(k,'$.g')),
		h datetime        as (JSON_EXTRACT(k,'$.h')),
		i timestamp       as (JSON_EXTRACT(k,'$.i')),
		j year            as (JSON_EXTRACT(k,'$.j')),
		k json);`)

	tk.MustExec("insert into t1 set k='{\"a\": 100,\"c\":1.234,\"d\":1.2340000000,\"e\":\"abcdefg\",\"f\":\"2018-09-28\",\"g\":\"12:59:59\",\"h\":\"2018-09-28 12:59:59\",\"i\":\"2018-09-28 16:40:33\",\"j\":\"2018\"}';")
	tk.MustExec("alter table t1 add index idx_a(a);")
	tk.MustExec("alter table t1 add index idx_c(c);")
	tk.MustExec("alter table t1 add index idx_d(d);")
	tk.MustExec("alter table t1 add index idx_e(e);")
	tk.MustExec("alter table t1 add index idx_f(f);")
	tk.MustExec("alter table t1 add index idx_g(g);")
	tk.MustExec("alter table t1 add index idx_h(h);")
	tk.MustExec("alter table t1 add index idx_j(j);")
	tk.MustExec("alter table t1 add index idx_i(i);")
	tk.MustExec("alter table t1 add index idx_m(a,c,d,e,f,g,h,i,j);")
	tk.MustExec("admin check table t1;")
}