package v1

import (
	"context"
	"errors"

	"git.badhouseplants.net/softplayer/softplayer-backend/internal/controllers"
	proto "git.badhouseplants.net/softplayer/softplayer-go-proto/pkg/environments"
	"github.com/golang/protobuf/ptypes/empty"
	"google.golang.org/grpc/metadata"
	ctrl "sigs.k8s.io/controller-runtime"
)

func NewapiGrpcImpl(controller ctrl.Manager) *EnvironmentsServer {
	return &EnvironmentsServer{
		controller: controller,
	}
}

type EnvironmentsServer struct {
	proto.UnimplementedEnvironmentsServer
	controller ctrl.Manager
}

func (e *EnvironmentsServer) Create(ctx context.Context, in *proto.EnvironmentData) (*proto.EnvironmentFull, error) {
	md, ok := metadata.FromIncomingContext(ctx)
	if !ok {
		return nil, errors.New("metadata is not provided")
	}
	token, ok := md["token"]
	if !ok {
		return nil, errors.New("token is not sent via metadata")
	}

	uuid, ok := md["uuid"]
	if !ok {
		return nil, errors.New("used id is not sent via metadata")
	}

	data := &controllers.EnvironemntData{
		Name:       in.GetName(),
		Provider:   in.GetProvider().String(),
		Kubernetes: in.GetKubernetes().String(),
	}
	environment := &controllers.Environemnt{
		UserID:     uuid[0],
		Controller: e.controller,
		Data:       data,
		Token:      token[0],
	}
	err := environment.Create(ctx)
	if err != nil {
		return nil, err
	}
	return nil, nil
}

func (e *EnvironmentsServer) Update(ctx context.Context, in *proto.EnvironmentFull) (*proto.EnvironmentFull, error) {
	return nil, nil
}

func (e *EnvironmentsServer) Delete(ctx context.Context, in *proto.EnvironmentFull) (*empty.Empty, error) {
	md, ok := metadata.FromIncomingContext(ctx)
	if !ok {
		return nil, errors.New("metadata is not provided")
	}
	token, ok := md["token"]
	if !ok {
		return nil, errors.New("token is not sent via metadata")
	}

	uuid, ok := md["uuid"]
	if !ok {
		return nil, errors.New("used id is not sent via metadata")
	}

	data := &controllers.EnvironemntData{
		Name:       in.Data.GetName(),
		Provider:   in.Data.GetProvider().String(),
		Kubernetes: in.Data.GetKubernetes().String(),
	}
	environment := &controllers.Environemnt{
		UserID:     uuid[0],
		Controller: e.controller,
		Data:       data,
		Token:      token[0],
	}
	err := environment.Create(ctx)
	if err != nil {
		return nil, err
	}
	return nil, nil
}

func (e *EnvironmentsServer) Get(ctx context.Context, in *proto.EnvironmentId) (*proto.EnvironmentFull, error) {
	return nil, nil
}

func (e *EnvironmentsServer) List(in *empty.Empty, stream proto.Environments_ListServer) error {
	md, ok := metadata.FromIncomingContext(stream.Context())
	if !ok {
		return errors.New("metadata is not provided")
	}
	token, ok := md["token"]
	if !ok {
		return errors.New("token is not sent via metadata")
	}

	uuid, ok := md["uuid"]
	if !ok {
		return errors.New("used id is not sent via metadata")
	}

	environment := &controllers.Environemnt{
		UserID:     uuid[0],
		Controller: e.controller,
		Token:      token[0],
	}
	envs, err := environment.ListEnvs(stream.Context())
	if err != nil {
		return err
	}

	for _, env := range envs {
		if err := stream.Send(&proto.EnvironmentFull{
			Id: &proto.EnvironmentId{Id: "test"},
			Data: &proto.EnvironmentData{
				Name: env,
			},
		}); err != nil {
			return err
		}
	}
	return nil
}