package repository

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

	"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)
	Import(ctx context.Context, src Repository) 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 := NewPostgres(PostgresOpts{
			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 := NewSQLite(SQLiteOpts{
			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)
	}
}