package api

import (
	"encoding/json"
	"testing"

	"github.com/google/uuid"
	"github.com/stretchr/testify/assert"
	"google.golang.org/protobuf/encoding/protojson"

	auditV1 "dev.azure.com/schwarzit/schwarzit.stackit-public/audit-go.git/gen/go/audit/v1"
	pkgAuditCommon "dev.azure.com/schwarzit/schwarzit.stackit-public/audit-go.git/pkg/audit/common"
)

func Test_GetCalledServiceNameFromRequest(t *testing.T) {

	t.Run("request is nil", func(t *testing.T) {
		serviceName := GetCalledServiceNameFromRequest(nil, "resource-manager")
		assert.Equal(t, "resource-manager", serviceName)
	})

	t.Run("localhost", func(t *testing.T) {
		request := pkgAuditCommon.ApiRequest{Host: "localhost:8080"}
		serviceName := GetCalledServiceNameFromRequest(&request, "resource-manager")
		assert.Equal(t, "resource-manager", serviceName)
	})

	t.Run("cf", func(t *testing.T) {
		request := pkgAuditCommon.ApiRequest{Host: "stackit-resource-manager-go-dev.apps.01.cf.eu01.stackit.cloud"}
		serviceName := GetCalledServiceNameFromRequest(&request, "resource-manager")
		assert.Equal(t, "stackit-resource-manager-go-dev", serviceName)
	})

	t.Run("cf invalid host", func(t *testing.T) {
		request := pkgAuditCommon.ApiRequest{Host: ""}
		serviceName := GetCalledServiceNameFromRequest(&request, "resource-manager")
		assert.Equal(t, "resource-manager", serviceName)
	})

	t.Run("ip", func(t *testing.T) {
		request := pkgAuditCommon.ApiRequest{Host: "127.0.0.1"}
		serviceName := GetCalledServiceNameFromRequest(&request, "resource-manager")
		assert.Equal(t, "resource-manager", serviceName)
	},
	)

	t.Run("ip short", func(t *testing.T) {
		request := pkgAuditCommon.ApiRequest{Host: "::1"}
		serviceName := GetCalledServiceNameFromRequest(&request, "resource-manager")
		assert.Equal(t, "resource-manager", serviceName)
	},
	)
}

func Test_GetObjectIdAndTypeFromUrlPath(t *testing.T) {

	t.Run("object id and type not in url", func(t *testing.T) {
		objectId, objectType, err := GetObjectIdAndTypeFromUrlPath("/v2/projects/audit")
		assert.NoError(t, err)
		assert.Equal(t, "", objectId)
		assert.Nil(t, objectType)
	})

	t.Run("object id and type in url", func(t *testing.T) {
		objectId, objectType, err := GetObjectIdAndTypeFromUrlPath("/v2/projects/f17d4064-9b65-4334-b6a7-8fed96340124")
		assert.NoError(t, err)
		assert.Equal(t, "f17d4064-9b65-4334-b6a7-8fed96340124", objectId)
		assert.Equal(t, pkgAuditCommon.ObjectTypeProject, *objectType)
	})

	t.Run("multiple object ids and types in url", func(t *testing.T) {
		objectId, objectType, err := GetObjectIdAndTypeFromUrlPath("/v2/organization/8ee58bec-d496-4bb9-af8d-72fda4d78b6b/projects/f17d4064-9b65-4334-b6a7-8fed96340124")
		assert.NoError(t, err)
		assert.Equal(t, "f17d4064-9b65-4334-b6a7-8fed96340124", objectId)
		assert.Equal(t, pkgAuditCommon.ObjectTypeProject, *objectType)
	})
}

func Test_ResponseBodyToBytes(t *testing.T) {

	t.Run(
		"nil response body", func(t *testing.T) {
			bytes, err := ResponseBodyToBytes(nil)
			assert.Nil(t, bytes)
			assert.Nil(t, err)
		},
	)

	t.Run(
		"bytes", func(t *testing.T) {
			responseBody := []byte("data")
			bytes, err := ResponseBodyToBytes(responseBody)
			assert.Nil(t, err)
			assert.Equal(t, responseBody, bytes)
		},
	)

	t.Run(
		"Protobuf message", func(t *testing.T) {
			protobufMessage := auditV1.ObjectIdentifier{Identifier: uuid.NewString(), Type: string(pkgAuditCommon.ObjectTypeProject)}
			bytes, err := ResponseBodyToBytes(&protobufMessage)
			assert.Nil(t, err)

			expected, err := protojson.Marshal(&protobufMessage)
			assert.Nil(t, err)
			assert.Equal(t, expected, bytes)
		},
	)

	t.Run(
		"struct", func(t *testing.T) {
			type CustomObject struct {
				Value string
			}

			responseBody := CustomObject{Value: "data"}
			bytes, err := ResponseBodyToBytes(responseBody)
			assert.Nil(t, err)

			expected, err := json.Marshal(responseBody)
			assert.Nil(t, err)
			assert.Equal(t, expected, bytes)
		},
	)

	t.Run(
		"map", func(t *testing.T) {

			responseBody := map[string]interface{}{"value": "data"}
			bytes, err := ResponseBodyToBytes(responseBody)
			assert.Nil(t, err)

			expected, err := json.Marshal(responseBody)
			assert.Nil(t, err)
			assert.Equal(t, expected, bytes)
		},
	)
}

func Test_ToArrayMap(t *testing.T) {

	t.Run("empty map", func(t *testing.T) {
		result := ToArrayMap(map[string]string{})
		assert.Equal(t, map[string][]string{}, result)
	})

	t.Run("empty map", func(t *testing.T) {
		result := ToArrayMap(map[string]string{"key1": "value1", "key2": "value2"})
		assert.Equal(t, map[string][]string{
			"key1": {"value1"},
			"key2": {"value2"},
		}, result)
	})
}