// Copyright 2023 EMQ Technologies Co., Ltd.
//
// 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 mqtt

import (
	"fmt"
	"reflect"
	"testing"
)

func TestSinkConfigure(t *testing.T) {
	tests := []struct {
		name           string
		input          map[string]interface{}
		expectedErr    error
		expectedAdConf *AdConf
	}{
		{
			name: "Missing topic",
			input: map[string]interface{}{
				"qos":         1,
				"retained":    false,
				"compression": "zlib",
			},
			expectedErr: fmt.Errorf("mqtt sink is missing property topic"),
		},
		{
			name: "Invalid QoS",
			input: map[string]interface{}{
				"topic":       "testTopic",
				"qos":         3,
				"retained":    false,
				"compression": "gzip",
			},
			expectedErr: fmt.Errorf("invalid qos value %v, the value could be only int 0 or 1 or 2", 3),
		},
		{
			name: "Valid configuration with QoS 0 and no compression",
			input: map[string]interface{}{
				"topic":       "testTopic3",
				"qos":         0,
				"retained":    false,
				"compression": "",
			},
			expectedErr: nil,
			expectedAdConf: &AdConf{
				Tpc:         "testTopic3",
				Qos:         0,
				Retained:    false,
				Compression: "",
				ResendTopic: "testTopic3",
			},
		},
		{
			name: "Valid configuration with QoS 1 and no retained",
			input: map[string]interface{}{
				"topic":       "testTopic4",
				"qos":         1,
				"retained":    false,
				"compression": "zlib",
			},
			expectedErr: nil,
			expectedAdConf: &AdConf{
				Tpc:         "testTopic4",
				Qos:         1,
				Retained:    false,
				Compression: "zlib",
				ResendTopic: "testTopic4",
			},
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			ms := &MQTTSink{}
			err := ms.Configure(tt.input)
			if !reflect.DeepEqual(err, tt.expectedErr) {
				t.Errorf("\n Expected error: \t%v\n \t\t\tgot: \t%v", tt.expectedErr, err)
				return
			}
			if !reflect.DeepEqual(ms.adconf, tt.expectedAdConf) {
				t.Errorf("\n Expected adConf: \t%v\n \t\t\tgot: \t%v", tt.expectedAdConf, ms.adconf)
				return
			}
		})
	}
}