package mysql

import (
	"strings"
	"testing"

	"github.com/pingcap/check"
)

func Test(t *testing.T) {
	check.TestingT(t)
}

type mysqlTestSuite struct {
}

var _ = check.Suite(&mysqlTestSuite{})

func (t *mysqlTestSuite) SetUpSuite(c *check.C) {

}

func (t *mysqlTestSuite) TearDownSuite(c *check.C) {

}

func (t *mysqlTestSuite) TestMysqlGTIDInterval(c *check.C) {
	i, err := parseInterval("1-2")
	c.Assert(err, check.IsNil)
	c.Assert(i, check.DeepEquals, Interval{1, 3})

	i, err = parseInterval("1")
	c.Assert(err, check.IsNil)
	c.Assert(i, check.DeepEquals, Interval{1, 2})

	i, err = parseInterval("1-1")
	c.Assert(err, check.IsNil)
	c.Assert(i, check.DeepEquals, Interval{1, 2})

	i, err = parseInterval("1-2")
	c.Assert(err, check.IsNil)
}

func (t *mysqlTestSuite) TestMysqlGTIDIntervalSlice(c *check.C) {
	i := IntervalSlice{Interval{1, 2}, Interval{2, 4}, Interval{2, 3}}
	i.Sort()
	c.Assert(i, check.DeepEquals, IntervalSlice{Interval{1, 2}, Interval{2, 3}, Interval{2, 4}})
	n := i.Normalize()
	c.Assert(n, check.DeepEquals, IntervalSlice{Interval{1, 4}})

	i = IntervalSlice{Interval{1, 2}, Interval{3, 5}, Interval{1, 3}}
	i.Sort()
	c.Assert(i, check.DeepEquals, IntervalSlice{Interval{1, 2}, Interval{1, 3}, Interval{3, 5}})
	n = i.Normalize()
	c.Assert(n, check.DeepEquals, IntervalSlice{Interval{1, 5}})

	i = IntervalSlice{Interval{1, 2}, Interval{4, 5}, Interval{1, 3}}
	i.Sort()
	c.Assert(i, check.DeepEquals, IntervalSlice{Interval{1, 2}, Interval{1, 3}, Interval{4, 5}})
	n = i.Normalize()
	c.Assert(n, check.DeepEquals, IntervalSlice{Interval{1, 3}, Interval{4, 5}})

	i = IntervalSlice{Interval{1, 4}, Interval{2, 3}}
	i.Sort()
	c.Assert(i, check.DeepEquals, IntervalSlice{Interval{1, 4}, Interval{2, 3}})
	n = i.Normalize()
	c.Assert(n, check.DeepEquals, IntervalSlice{Interval{1, 4}})

	n1 := IntervalSlice{Interval{1, 3}, Interval{4, 5}}
	n2 := IntervalSlice{Interval{1, 2}}

	c.Assert(n1.Contain(n2), check.Equals, true)
	c.Assert(n2.Contain(n1), check.Equals, false)

	n1 = IntervalSlice{Interval{1, 3}, Interval{4, 5}}
	n2 = IntervalSlice{Interval{1, 6}}

	c.Assert(n1.Contain(n2), check.Equals, false)
	c.Assert(n2.Contain(n1), check.Equals, true)
}

func (t *mysqlTestSuite) TestMysqlGTIDCodec(c *check.C) {
	us, err := ParseUUIDSet("de278ad0-2106-11e4-9f8e-6edd0ca20947:1-2")
	c.Assert(err, check.IsNil)

	c.Assert(us.String(), check.Equals, "de278ad0-2106-11e4-9f8e-6edd0ca20947:1-2")

	buf := us.Encode()
	err = us.Decode(buf)
	c.Assert(err, check.IsNil)

	gs, err := ParseMysqlGTIDSet("de278ad0-2106-11e4-9f8e-6edd0ca20947:1-2,de278ad0-2106-11e4-9f8e-6edd0ca20948:1-2")
	c.Assert(err, check.IsNil)

	buf = gs.Encode()
	o, err := DecodeMysqlGTIDSet(buf)
	c.Assert(err, check.IsNil)
	c.Assert(gs, check.DeepEquals, o)
}

func (t *mysqlTestSuite) TestMysqlUpdate(c *check.C) {
	g1, err := ParseMysqlGTIDSet("3E11FA47-71CA-11E1-9E33-C80AA9429562:21-57")
	c.Assert(err, check.IsNil)

	g1.Update("3E11FA47-71CA-11E1-9E33-C80AA9429562:21-58")

	c.Assert(strings.ToUpper(g1.String()), check.Equals, "3E11FA47-71CA-11E1-9E33-C80AA9429562:21-58")
}

func (t *mysqlTestSuite) TestMysqlGTIDContain(c *check.C) {
	g1, err := ParseMysqlGTIDSet("3E11FA47-71CA-11E1-9E33-C80AA9429562:23")
	c.Assert(err, check.IsNil)

	g2, err := ParseMysqlGTIDSet("3E11FA47-71CA-11E1-9E33-C80AA9429562:21-57")
	c.Assert(err, check.IsNil)

	c.Assert(g2.Contain(g1), check.Equals, true)
	c.Assert(g1.Contain(g2), check.Equals, false)
}

func (t *mysqlTestSuite) TestMysqlParseBinaryInt8(c *check.C) {
	i8 := ParseBinaryInt8([]byte{128})
	c.Assert(i8, check.Equals, int8(-128))
}

func (t *mysqlTestSuite) TestMysqlParseBinaryUint8(c *check.C) {
	u8 := ParseBinaryUint8([]byte{128})
	c.Assert(u8, check.Equals, uint8(128))
}

func (t *mysqlTestSuite) TestMysqlParseBinaryInt16(c *check.C) {
	i16 := ParseBinaryInt16([]byte{1, 128})
	c.Assert(i16, check.Equals, int16(-128*256+1))
}

func (t *mysqlTestSuite) TestMysqlParseBinaryUint16(c *check.C) {
	u16 := ParseBinaryUint16([]byte{1, 128})
	c.Assert(u16, check.Equals, uint16(128*256+1))
}

func (t *mysqlTestSuite) TestMysqlParseBinaryInt24(c *check.C) {
	i32 := ParseBinaryInt24([]byte{1, 2, 128})
	c.Assert(i32, check.Equals, int32(-128*65536+2*256+1))
}

func (t *mysqlTestSuite) TestMysqlParseBinaryUint24(c *check.C) {
	u32 := ParseBinaryUint24([]byte{1, 2, 128})
	c.Assert(u32, check.Equals, uint32(128*65536+2*256+1))
}

func (t *mysqlTestSuite) TestMysqlParseBinaryInt32(c *check.C) {
	i32 := ParseBinaryInt32([]byte{1, 2, 3, 128})
	c.Assert(i32, check.Equals, int32(-128*16777216+3*65536+2*256+1))
}

func (t *mysqlTestSuite) TestMysqlParseBinaryUint32(c *check.C) {
	u32 := ParseBinaryUint32([]byte{1, 2, 3, 128})
	c.Assert(u32, check.Equals, uint32(128*16777216+3*65536+2*256+1))
}

func (t *mysqlTestSuite) TestMysqlParseBinaryInt64(c *check.C) {
	i64 := ParseBinaryInt64([]byte{1, 2, 3, 4, 5, 6, 7, 128})
	c.Assert(i64, check.Equals, -128*int64(72057594037927936)+7*int64(281474976710656)+6*int64(1099511627776)+5*int64(4294967296)+4*16777216+3*65536+2*256+1)
}

func (t *mysqlTestSuite) TestMysqlParseBinaryUint64(c *check.C) {
	u64 := ParseBinaryUint64([]byte{1, 2, 3, 4, 5, 6, 7, 128})
	c.Assert(u64, check.Equals, 128*uint64(72057594037927936)+7*uint64(281474976710656)+6*uint64(1099511627776)+5*uint64(4294967296)+4*16777216+3*65536+2*256+1)
}

func (t *mysqlTestSuite) TestErrorCode(c *check.C) {
	tbls := []struct {
		msg  string
		code int
	}{
		{"ERROR 1094 (HY000): Unknown thread id: 1094", 1094},
		{"error string", 0},
		{"abcdefg", 0},
		{"123455 ks094", 0},
		{"ERROR 1046 (3D000): Unknown error 1046", 1046},
	}
	for _, v := range tbls {
		c.Assert(ErrorCode(v.msg), check.Equals, v.code)
	}
}

func (t *mysqlTestSuite) TestMysqlNullDecode(c *check.C) {
	_, isNull, n := LengthEncodedInt([]byte{0xfb})

	c.Assert(isNull, check.IsTrue)
	c.Assert(n, check.Equals, 1)
}