package api

import (
	"os"
	"testing"

	tpb "code.fbi.h-da.de/cocsn/api/go/gosdn/transport"
	"code.fbi.h-da.de/cocsn/gosdn/nucleus/util/proto"
	guuid "github.com/google/uuid"
	gpb "github.com/openconfig/gnmi/proto/gnmi"
	log "github.com/sirupsen/logrus"
	"github.com/spf13/viper"
	pb "google.golang.org/protobuf/proto"
)

const unreachable = "203.0.113.10:6030"
const testPath = "/system/config/hostname"

var testAddress = "141.100.70.170:6030"
var testAPIEndpoint = "gosdn-latest.apps.ocp.fbi.h-da.de"
var testUsername = "admin"
var testPassword = "arista"
var opt *tpb.TransportOption
var gnmiMessages map[string]pb.Message

func TestMain(m *testing.M) {
	testSetupIntegration()
	os.Exit(m.Run())
}

func testSetupIntegration() {
	if os.Getenv("GOSDN_LOG") == "nolog" {
		log.SetLevel(log.PanicLevel)
	}

	addr := os.Getenv("GOSDN_TEST_ENDPOINT")
	if addr != "" {
		testAddress = addr
		log.Infof("GOSDN_TEST_ENDPOINT set to %v", testAddress)
	}
	api := os.Getenv("GOSDN_TEST_API_ENDPOINT")
	if api != "" {
		testAPIEndpoint = api
		log.Infof("GOSDN_TEST_API_ENDPOINT set to %v", testAPIEndpoint)
	}
	u := os.Getenv("GOSDN_TEST_USER")
	if u != "" {
		testUsername = u
		log.Infof("GOSDN_TEST_USER set to %v", testUsername)
	}
	p := os.Getenv("GOSDN_TEST_PASSWORD")
	if p != "" {
		testPassword = p
		log.Infof("GOSDN_TEST_PASSWORD set to %v", testPassword)
	}

	gnmiMessages = map[string]pb.Message{
		"../test/proto/cap-resp-arista-ceos":                  &gpb.CapabilityResponse{},
		"../test/proto/req-full-node":                         &gpb.GetRequest{},
		"../test/proto/req-full-node-arista-ceos":             &gpb.GetRequest{},
		"../test/proto/req-interfaces-arista-ceos":            &gpb.GetRequest{},
		"../test/proto/req-interfaces-interface-arista-ceos":  &gpb.GetRequest{},
		"../test/proto/req-interfaces-wildcard":               &gpb.GetRequest{},
		"../test/proto/resp-full-node":                        &gpb.GetResponse{},
		"../test/proto/resp-full-node-arista-ceos":            &gpb.GetResponse{},
		"../test/proto/resp-interfaces-arista-ceos":           &gpb.GetResponse{},
		"../test/proto/resp-interfaces-interface-arista-ceos": &gpb.GetResponse{},
		"../test/proto/resp-interfaces-wildcard":              &gpb.GetResponse{},
		"../test/proto/resp-set-system-config-hostname":       &gpb.SetResponse{},
	}
	for k, v := range gnmiMessages {
		if err := proto.Read(k, v); err != nil {
			log.Fatalf("error parsing %v: %v", k, err)
		}
	}

	opt = &tpb.TransportOption{
		Address:  testAddress,
		Username: testUsername,
		Password: testPassword,
	}
}

func TestApiIntegration(t *testing.T) {
	// TDOO: Remove once openshift grpc support is available
	t.Skip("skipped due to openshift limitations")
	if testing.Short() {
		t.Skip("skipping integration test")
	}
	tests := []struct {
		name    string
		wantErr bool
	}{
		{
			name:    "default",
			wantErr: false,
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			defer viper.Reset()
			if err := Init(testAPIEndpoint); (err != nil) != tt.wantErr {
				switch err.(type) {
				case viper.ConfigFileNotFoundError:
				default:
					t.Errorf("gosdn cli init error = %v, wantErr %v", err, tt.wantErr)
					return
				}
			}
			cliPnd := viper.GetString("CLI_PND")
			cliSbi := viper.GetString("CLI_SBI")

			if _, err := AddDevice(
				testAPIEndpoint,
				testUsername,
				testPassword,
				cliSbi,
				cliPnd,
				testAddress,
				"test-device",
			); (err != nil) != tt.wantErr {
				t.Errorf("gosdn cli add-device error = %v, wantErr %v", err, tt.wantErr)
				return
			}
			did := viper.GetString("LAST_DEVICE_UUID")

			_, err := GetDevice(
				testAPIEndpoint,
				cliPnd,
				testPath,
				did,
			)
			if (err != nil) != tt.wantErr {
				t.Errorf("gosdn cli request error = %v, wantErr %v", err, tt.wantErr)
				return
			}

			_, err = GetDevice(
				testAPIEndpoint,
				cliPnd,
				"",
				did,
			)
			if (err != nil) != tt.wantErr {
				t.Errorf("gosdn cli get-device error = %v, wantErr %v", err, tt.wantErr)
				return
			}

			hostname := guuid.New().String()
			_, err = Update(
				testAPIEndpoint,
				did,
				cliPnd,
				testPath,
				hostname,
			)
			if (err != nil) != tt.wantErr {
				t.Errorf("gosdn cli set error = %v, wantErr %v", err, tt.wantErr)
				return
			}

			resp, err := GetDevice(testAddress, testUsername, testPassword, testPath)
			if err != nil {
				if !tt.wantErr {
					t.Errorf("Get() error = %v, wantErr %v", err, tt.wantErr)
				}
				return
			}
			var got string
			if resp != nil {
				got = resp.Ond[0].Name
			} else {
				t.Errorf("integration test failed got cannot be nil")
			}
			if got != hostname {
				t.Errorf("integration test failed = got: %v, want: %v", got, hostname)
			}
		})
	}
}