package configuration

import (
	"github.com/gofrs/uuid"
	"github.com/spf13/viper"
)

type Configuration struct {
	Brew struct {
		UUID uuid.UUID `mapstructure:"uuid"`
	} `mapstructure:"brew"`

	NATS struct {
		Servers  []string `mapstructure:"servers"`
		Username string   `mapstructure:"username"`
		Password string   `mapstructure:"password"`
		Stream   string   `mapstructure:"stream"`
		Subject  struct {
			Event string `mapstructure:"event"`
			State string `mapstructure:"state"`
			Temp  string `mapstructure:"temp"`
			Tilt  string `mapstructure:"tilt"`
		} `mapstructure:"subject"`
	} `mapstructure:"nats"`

	HTTP struct {
		Port int16 `mapstructure:"port"`
	} `mapstructure:"http"`

	Sensors struct {
		Wort    string  `mapstructure:"wort"`
		Chamber string  `mapstructure:"chamber"`
		Ambient string  `mapstructure:"ambient"`
		Weight  float64 `mapstructure:"weight"`
	} `mapstructure:"sensors"`

	FermentationTemperature float64 `mapstructure:"fermentation_temp"`
	DeltaTemperatureCool    float64 `mapstructure:"delta_temp_cool"`
	DeltaTemperatureHeat    float64 `mapstructure:"delta_temp_heat"`
	HeaterEnabled           bool    `mapstructure:"heater_enabled"`
	CoolerEnabled           bool    `mapstructure:"cooler_enabled"`

	Limits struct {
		MinChamberTemperature float64 `mapstructure:"min_chamber_temp"`
		MaxChamberTemperature float64 `mapstructure:"max_chamber_temp"`
		MinCoolerRuntimeSecs  float64 `mapstructure:"min_cooler_runtime_secs"`
		MaxCoolerRuntimeSecs  float64 `mapstructure:"max_cooler_runtime_secs"`
		MinCoolerCooldownSecs float64 `mapstructure:"min_cooler_cooldown_secs"`
		HeaterGraceTimeSecs   float64 `mapstructure:"heater_grace_time_secs"`
	} `mapstructure:"limits"`

	PID struct {
		Kp float64 `mapstructure:"kp"` // 2.0
		Ki float64 `mapstructure:"ki"` // 0.0001
		Kd float64 `mapstructure:"kd"` // 2.0
	} `mapstructure:"pid"`
}

func setDefaults() {
	viper.SetDefault("cooler_enabled", true)
	viper.SetDefault("heater_enabled", true)
	viper.SetDefault("http.port", 8000)
	viper.SetDefault("nats.stream", "DWJONDAHL")
	viper.SetDefault("nats.subject.event", "DWJONDAHL.ingest.fermentor.ingest_event")
	viper.SetDefault("nats.subject.state", "DWJONDAHL.ingest.fermentor.ingest_state")
	viper.SetDefault("nats.subject.temp", "DWJONDAHL.ingest.fermentor.ingest_temperature_reading")
	viper.SetDefault("nats.subject.tilt", "DWJONDAHL.ingest.fermentor.ingest_tilt_reading")
	viper.SetDefault("nats.url", "nats.service.consul")
	viper.SetDefault("pid.kd", 2.0)
	viper.SetDefault("pid.ki", 0.0001)
	viper.SetDefault("pid.kp", 2.0)
	viper.SetDefault("limits.heater_grace_time_secs", 1800)
	viper.SetDefault("limits.max_chamber_temp", 40)
	viper.SetDefault("limits.max_cooler_runtime_secs", 86400)
	viper.SetDefault("limits.min_chamber_temp", 5)
	viper.SetDefault("limits.min_cooler_cooldown_secs", 300)
	viper.SetDefault("limits.min_cooler_runtime_secs", 300)
	viper.SetDefault("sensors.weight", 0.8)
}