package cli

import (
	"fmt"
	"io"
	"text/tabwriter"

	"github.com/volker-raschek/flucky/pkg/config"
	"github.com/volker-raschek/flucky/pkg/internal/temperature"
	"github.com/volker-raschek/flucky/pkg/types"
)

// PrintHumidities displays a list of humidities
func PrintHumidities(humidities []*types.Humidity, cnf *config.Configuration, w io.Writer) {
	// determine all humidity sensors based on the humidiy values
	sensors := []*types.Sensor{}
	for _, humidity := range humidities {
		// Search for the sensor that has acquired the measured value
		for _, sensor := range cnf.Sensors {
			if sensor.SensorID == humidity.SensorID {
				sensors = append(sensors, sensor)
				break
			}
		}
		// If it was not found, pass only the sensor with the UUID on
		sensor := &types.Sensor{
			SensorID: humidity.SensorID,
		}
		sensors = append(sensors, sensor)
	}

	// sort temperature values for every sensor
	orderedHumidities := make(map[string][]*types.Humidity)
	for _, humidity := range humidities {
		orderedHumidities[humidity.SensorID] = append(orderedHumidities[humidity.SensorID], humidity)
	}

	// declare tabwriter
	tw := tabwriter.NewWriter(w, 0, 0, 3, ' ', 0)

	// headlines
	for i, sensor := range sensors {
		fmt.Fprintf(tw, "%v\t", sensor.Name())
		if i == len(sensors)-1 {
			fmt.Fprintf(tw, "\n")
		}
	}

	// find sensor with maximum temperature values
	maxLength := 0
	for _, orderedHumidity := range orderedHumidities {
		if len(orderedHumidity) > maxLength {
			maxLength = len(orderedHumidity)
		}
	}

	// body
	for i := 0; i < maxLength; i++ {
		for _, sensor := range sensors {
			if len(orderedHumidities[sensor.SensorID]) > i {
				fmt.Fprintf(tw, "%3.3f\t", orderedHumidities[sensor.SensorID][i].HumidityValue)
			} else {
				fmt.Fprint(tw, "\t")
			}
			fmt.Fprint(tw, "\n")
		}
	}
	tw.Flush()
}

// PrintSensors displays a list with all configured sensors
func PrintSensors(cnf *config.Configuration, w io.Writer) error {

	// declar tabwriter
	tw := tabwriter.NewWriter(w, 0, 0, 3, ' ', 0)

	fmt.Fprint(tw, "name\tlocation\ttype\twire-id\tgpio\tenabled\n")

	for _, sensor := range cnf.Sensors {
		fmt.Fprintf(tw, "%v\t%v\t%v\t%v\t%v\t%v\n", sensor.SensorName, sensor.SensorLocation, sensor.SensorModel, *sensor.WireID, *sensor.GPIONumber, sensor.SensorEnabled)
	}

	tw.Flush()

	return nil
}

// PrintTemperatures displays a list of temperatures
func PrintTemperatures(temperatures []*types.Temperature, cnf *config.Configuration, w io.Writer) {

	sensors := temperature.GetSensorsByTemperatures(temperatures, cnf)

	// sort temperature values for every sensor
	orderedTemperatures := make(map[string][]*types.Temperature)
	for _, temperature := range temperatures {
		orderedTemperatures[temperature.SensorID] = append(orderedTemperatures[temperature.SensorID], temperature)
	}

	// declare tabwriter
	tw := tabwriter.NewWriter(w, 0, 0, 3, ' ', 0)

	// headlines
	for i, sensor := range sensors {
		fmt.Fprintf(tw, "%v\t", sensor.Name())
		if i == len(sensors)-1 {
			fmt.Fprintf(tw, "\n")
		}
	}

	// find sensor with maximum temperature values
	maxLength := 0
	for _, orderedTemperature := range orderedTemperatures {
		if len(orderedTemperature) > maxLength {
			maxLength = len(orderedTemperature)
		}
	}

	// body
	for i := 0; i < maxLength; i++ {
		for _, sensor := range sensors {
			if len(orderedTemperatures[sensor.SensorID]) > i {
				fmt.Fprintf(tw, "%3.3f\t", orderedTemperatures[sensor.SensorID][i].TemperatureValue)
			} else {
				fmt.Fprint(tw, "\t")
			}

		}
		fmt.Fprint(tw, "\n")
	}
	tw.Flush()
}