// Copyright 2021 iLogtail Authors
//
// 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,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package pickkey

import (
	"github.com/alibaba/ilogtail/pkg/logger"
	"github.com/alibaba/ilogtail/pkg/pipeline"
	"github.com/alibaba/ilogtail/pkg/protocol"
	"github.com/alibaba/ilogtail/plugins/test"
	"github.com/alibaba/ilogtail/plugins/test/mock"

	"context"
	"testing"

	"github.com/pingcap/check"
)

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

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

type processorTestSuite struct {
	processor pipeline.ProcessorV1
}

func (s *processorTestSuite) SetUpTest(c *check.C) {
	s.processor = pipeline.Processors["processor_pick_key"]().(pipeline.ProcessorV1)
	_ = s.processor.Init(mock.NewEmptyContext("p", "l", "c"))
	logger.Info(context.Background(), "set up", s.processor.Description())
}

func (s *processorTestSuite) TearDownTest(c *check.C) {

}

func (s *processorTestSuite) TestDefault(c *check.C) {
	{
		var log = "xxxx\nyyyy\nzzzz"
		logPb := test.CreateLogs("content", log, "key1", "value1", "key2", "value2")
		processor, _ := s.processor.(*ProcessorPickKey)
		processor.Exclude = []string{"content", "key1"}
		_ = s.processor.Init(mock.NewEmptyContext("p", "l", "c"))
		logArray := make([]*protocol.Log, 1)
		logArray[0] = logPb
		outLogs := s.processor.ProcessLogs(logArray)
		c.Assert(len(outLogs), check.Equals, 1)
		c.Assert(len(outLogs[0].Contents), check.Equals, 1)
		c.Assert(outLogs[0].Contents[0].GetKey(), check.Equals, "key2")
		c.Assert(outLogs[0].Contents[0].GetValue(), check.Equals, "value2")
	}
	{
		var log = "xxxx\nyyyy\nzzzz"
		logPb := test.CreateLogs("content", log, "key1", "value1", "key2", "value2")
		processor, _ := s.processor.(*ProcessorPickKey)
		processor.Include = []string{"key2", "content"}
		processor.Exclude = nil
		_ = s.processor.Init(mock.NewEmptyContext("p", "l", "c"))
		logArray := make([]*protocol.Log, 1)
		logArray[0] = logPb
		outLogs := s.processor.ProcessLogs(logArray)
		c.Assert(len(outLogs), check.Equals, 1)
		c.Assert(len(outLogs[0].Contents), check.Equals, 2)
		c.Assert(outLogs[0].Contents[0].GetKey(), check.Equals, "content")
		c.Assert(outLogs[0].Contents[0].GetValue(), check.Equals, log)
		c.Assert(outLogs[0].Contents[1].GetKey(), check.Equals, "key2")
		c.Assert(outLogs[0].Contents[1].GetValue(), check.Equals, "value2")
	}
	{
		var log = "xxxx\nyyyy\nzzzz"
		logPb := test.CreateLogs("content", log, "key1", "value1", "key2", "value2")
		processor, _ := s.processor.(*ProcessorPickKey)
		processor.Exclude = []string{"content", "key1"}
		processor.Include = []string{"key2", "content"}
		_ = s.processor.Init(mock.NewEmptyContext("p", "l", "c"))
		logArray := make([]*protocol.Log, 1)
		logArray[0] = logPb
		outLogs := s.processor.ProcessLogs(logArray)
		c.Assert(len(outLogs), check.Equals, 1)
		c.Assert(len(outLogs[0].Contents), check.Equals, 1)
		c.Assert(outLogs[0].Contents[0].GetKey(), check.Equals, "key2")
		c.Assert(outLogs[0].Contents[0].GetValue(), check.Equals, "value2")
	}

}

func (s *processorTestSuite) TestNotMatch(c *check.C) {
	{
		var log = "xxxx\nyyyy\nzzzz"
		logPb := test.CreateLogs("content", log, "key1", "value1", "key2", "value2")
		processor, _ := s.processor.(*ProcessorPickKey)
		processor.Include = nil
		processor.Exclude = []string{"content", "key1", "key2"}
		_ = s.processor.Init(mock.NewEmptyContext("p", "l", "c"))
		logArray := make([]*protocol.Log, 1)
		logArray[0] = logPb
		outLogs := s.processor.ProcessLogs(logArray)
		c.Assert(len(outLogs), check.Equals, 0)
	}
}
