package repository

import (
	"context"
	"fmt"
	"net/url"

	"git.cryptic.systems/volker.raschek/flucky/pkg/repository/postgres"
	"git.cryptic.systems/volker.raschek/flucky/pkg/repository/sqlite3"
	"git.cryptic.systems/volker.raschek/flucky/pkg/types"
	"git.cryptic.systems/volker.raschek/go-logger"
)

type Repository interface {
	AddDevices(ctx context.Context, devices ...*types.Device) error
	AddMeasuredValues(ctx context.Context, measuredValues ...*types.MeasuredValue) error
	AddOrUpdateDevices(ctx context.Context, devices ...*types.Device) error
	AddOrUpdateMeasuredValues(ctx context.Context, measuredValues ...*types.MeasuredValue) error
	AddOrUpdateSensors(ctx context.Context, sensors ...*types.Sensor) error
	AddSensors(ctx context.Context, sensors ...*types.Sensor) error
	Close() error
	GetDeviceByID(ctx context.Context, deviceID string) (*types.Device, error)
	GetDeviceByName(ctx context.Context, name string) (*types.Device, error)
	GetDevices(ctx context.Context) ([]*types.Device, error)
	GetHumidities(ctx context.Context) ([]*types.MeasuredValue, error)
	GetHumidityByID(ctx context.Context, id string) (*types.MeasuredValue, error)
	GetPressureByID(ctx context.Context, id string) (*types.MeasuredValue, error)
	GetPressures(ctx context.Context) ([]*types.MeasuredValue, error)
	GetSensorByID(ctx context.Context, sensorID string) (*types.Sensor, error)
	GetSensorsByDeviceIDs(ctx context.Context, deviceIDs ...string) ([]*types.Sensor, error)
	GetSensorsByModels(ctx context.Context, sensorModels ...string) ([]*types.Sensor, error)
	GetSensorsByNames(ctx context.Context, sensorModels ...string) ([]*types.Sensor, error)
	GetSensors(ctx context.Context) ([]*types.Sensor, error)
	GetTemperatureByID(ctx context.Context, id string) (*types.MeasuredValue, error)
	GetTemperatures(ctx context.Context) ([]*types.MeasuredValue, error)
	Migrate(ctx context.Context) error
	RemoveDevicesByIDs(ctx context.Context, deviceIDs ...string) error
	RemoveDevicesByNames(ctx context.Context, names ...string) error
	RemoveSensorsByIDs(ctx context.Context, sensorIDs ...string) error
	RemoveSensorsByNames(ctx context.Context, names ...string) error
	UpdateDevices(ctx context.Context, devices ...*types.Device) error
	UpdateSensors(ctx context.Context, sensors ...*types.Sensor) error
}

// New returns a new database backend interface
func New(databaseURL *url.URL, flogger logger.Logger) (Repository, error) {
	switch databaseURL.Scheme {
	case "postgres":
		repo, err := postgres.New(postgres.Opts{
			DatabaseURL: databaseURL,
			Logger:      flogger,
		})
		if err != nil {
			return nil, err
		}

		// Initialize database scheme if not exists
		err = repo.Migrate(context.Background())
		if err != nil {
			return nil, err
		}

		return repo, nil

	case "sqlite3":
		repo, err := sqlite3.New(sqlite3.Opts{
			DatabaseURL: databaseURL,
			Logger:      flogger,
		})
		if err != nil {
			return nil, err
		}

		// Initialize database scheme if not exists
		err = repo.Migrate(context.Background())
		if err != nil {
			return nil, err
		}

		return repo, nil

	default:
		return nil, fmt.Errorf("Unsupported repository scheme: %v", databaseURL.Scheme)
	}
}