initial commit

.gitignore

@@ -0,0 +1,4 @@
+./main
+.env
+.idea/
+*.iml

app/api/events.go

@@ -0,0 +1,20 @@
+package api
+
+import (
+	"git.aiterp.net/lucifer/server3/app/config"
+	"git.aiterp.net/lucifer/server3/models"
+	"github.com/gin-gonic/gin"
+)
+
+func Events(r gin.IRoutes) {
+	r.POST("", handler(func(c *gin.Context) (interface{}, error) {
+		var event models.Event
+		err := parseBody(c, &event)
+		if err != nil {
+			return nil, err
+		}
+
+		config.EventChannel<-event
+		return event, nil
+	}))
+}

app/api/util.go

@@ -0,0 +1,46 @@
+package api
+
+import (
+	"encoding/json"
+	"git.aiterp.net/lucifer/server3/models"
+	"github.com/gin-gonic/gin"
+)
+
+var errorMap = map[error]int{
+	models.ErrInvalidName: 400,
+}
+
+type response struct {
+	Code    int         `json:"code"`
+	Message string      `json:"message"`
+	Data    interface{} `json:"data"`
+}
+
+func handler(fun func(c *gin.Context) (interface{}, error)) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		val, err := fun(c)
+		if err != nil {
+			errCode := errorMap[err]
+			if errCode == 0 {
+				errCode = 500
+			}
+
+			c.JSON(errCode, response{
+				Code: errCode,
+				Message: err.Error(),
+			})
+			return
+		}
+
+		c.JSON(200, val)
+	}
+}
+
+func parseBody(c *gin.Context, target interface{}) error {
+	err := json.NewDecoder(c.Request.Body).Decode(target)
+	if err != nil {
+		return models.ErrBadInput
+	}
+
+	return nil
+}

app/config/channels.go

@@ -0,0 +1,7 @@
+package config
+
+import "git.aiterp.net/lucifer/server3/models"
+
+var EventChannel = make(chan models.Event, 8)
+
+var ChangeChannel = make(chan string, 16)

app/config/driver.go

@@ -0,0 +1,13 @@
+package config
+
+import "git.aiterp.net/lucifer/server3/models"
+
+var dr models.DriverResolver
+
+func DriverResolver() models.DriverResolver {
+	if dr == nil {
+		panic("not implemented yet")
+	}
+
+	return dr
+}

app/config/env.go

@@ -0,0 +1,31 @@
+package config
+
+import (
+	"os"
+	"strconv"
+)
+
+var MySqlHost = strEnv("LUCIFER_MYSQL_HOST")
+var MySqlPort = intEnv("LUCIFER_MYSQL_PORT")
+var MySqlUsername = strEnv("LUCIFER_MYSQL_USERNAME")
+var MySQlPassword = strEnv("LUCIFER_MYSQL_PASSWORD")
+
+var ServerPort = intEnv("LUCIFER_SERVER_PORT")
+
+func strEnv(key string) string {
+	env, ok := os.LookupEnv(key)
+	if !ok {
+		panic("missing environment variable: " + key)
+	}
+
+	return env
+}
+
+func intEnv(key string) int {
+	val, err := strconv.Atoi(strEnv(key))
+	if err != nil {
+		panic("invalid environment variable: " + key)
+	}
+
+	return val
+}

app/config/repo.go

@@ -0,0 +1,24 @@
+package config
+
+import "git.aiterp.net/lucifer/server3/models"
+
+var (
+	dRepo  models.DeviceRepository
+	ehRepo models.EventHandlerRepository
+)
+
+func DeviceRepository() models.DeviceRepository {
+	if dRepo == nil {
+		panic("panik")
+	}
+
+	return dRepo
+}
+
+func EventHandlerRepository() models.EventHandlerRepository {
+	if ehRepo == nil {
+		panic("panik")
+	}
+
+	return ehRepo
+}

app/server.go

@@ -0,0 +1,20 @@
+package app
+
+import (
+	"fmt"
+	"git.aiterp.net/lucifer/server3/app/api"
+	"git.aiterp.net/lucifer/server3/app/config"
+	"git.aiterp.net/lucifer/server3/app/services"
+	"github.com/gin-gonic/gin"
+	"log"
+)
+
+func StartServer() {
+	services.StartEventHandler()
+
+	gin.SetMode(gin.ReleaseMode)
+	ginny := gin.New()
+	api.Events(ginny.Group("/api/events"))
+
+	log.Fatal(ginny.Run(fmt.Sprintf("0.0.0.0:%d", config.ServerPort)))
+}

app/services/events.go

@@ -0,0 +1,59 @@
+package services
+
+import (
+	"context"
+	"git.aiterp.net/lucifer/server3/app/config"
+	"git.aiterp.net/lucifer/server3/models"
+	"log"
+	"time"
+)
+
+func StartEventHandler() {
+	config.EventChannel<-models.Event{Name: "LuciferStarted"}
+
+	go func() {
+		for event := range config.EventChannel {
+			handleEvent(event)
+		}
+	}()
+
+	// Dispatch an HourChanged event at every hour
+	go func() {
+		for {
+			now := time.Now()
+			nextHour := now.Add(time.Hour).Truncate(time.Hour)
+			time.Sleep(nextHour.Sub(now))
+
+			config.EventChannel <- models.Event{Name: "HourChanged"}
+		}
+	}()
+}
+
+var loc, _ = time.LoadLocation("Europe/Oslo")
+var ctx = context.Background()
+
+func handleEvent(event models.Event) {
+	if !event.HasPayload("hour") {
+		event.AddPayload("hour", time.Now().In(loc).Format("15"))
+	}
+
+	handlers, err := config.EventHandlerRepository().FetchAll(ctx)
+	if err != nil {
+		log.Printf("Error fetchin event halders: %d", err)
+		return
+	}
+
+	for _, handler := range handlers {
+		devices, err := config.DeviceRepository().FetchByReference(ctx, handler.TargetKind, handler.TargetValue)
+		if err != nil {
+			log.Printf("Error fetchin event halders: %d", err)
+			return
+		}
+
+		if !handler.MatchesEvent(event, devices) {
+			continue
+		}
+
+		panic("panik")
+	}
+}

go.mod

@@ -0,0 +1,5 @@
+module git.aiterp.net/lucifer/server3
+
+go 1.16
+
+require github.com/gin-gonic/gin v1.7.1

go.sum

@@ -0,0 +1,54 @@
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main.go

@@ -0,0 +1,7 @@
+package main
+
+import "git.aiterp.net/lucifer/server3/app"
+
+func main() {
+	app.StartServer()
+}

models/bridge.go

@@ -0,0 +1,15 @@
+package models
+
+type Bridge struct {
+	ID               int
+	Name             string
+	Driver           DriverType
+	ConnectionString string
+}
+
+type DriverType string
+
+var (
+	DTHue      DriverType = "Hue"
+	DTNanoLeaf DriverType = "NanoLeaf"
+)

models/colorvalue.go

@@ -0,0 +1,61 @@
+package models
+
+import (
+	"fmt"
+	"regexp"
+	"strconv"
+)
+
+type ColorValue struct {
+	Hue        int `json:"h,omitempty"`
+	Saturation int `json:"s,omitempty"`
+	Kelvin     int `json:"kelvin,omitempty"`
+}
+
+func (c *ColorValue) IsHueSat() bool {
+	return !c.IsKelvin()
+}
+
+func (c *ColorValue) IsKelvin() bool {
+	return c.Kelvin > 0
+}
+
+func (c *ColorValue) String() string {
+	if c.Kelvin > 0 {
+		return fmt.Sprintf("kelvin:%d", c.Kelvin)
+	}
+
+	return fmt.Sprintf("hsv:%d,%d", c.Hue, c.Saturation)
+}
+
+var kelvinRegex = regexp.MustCompile("kelvin:([0-9]+)")
+var hsRegex = regexp.MustCompile("hs:([0-9]+),([0-9]+)")
+
+func ParseColorValue(raw string) (ColorValue, error) {
+	if kelvinRegex.MatchString(raw) {
+		part := kelvinRegex.FindString(raw)
+		parsedPart, err := strconv.Atoi(part)
+		if err != nil {
+			return ColorValue{}, ErrBadInput
+		}
+
+		return ColorValue{Kelvin: parsedPart}, nil
+	}
+
+	if hsRegex.MatchString(raw) {
+		parts := kelvinRegex.FindAllString(raw, 2)
+		if len(parts) < 2 {
+			return ColorValue{}, ErrUnknownColorFormat
+		}
+
+		part1, err1 := strconv.Atoi(parts[0])
+		part2, err2 := strconv.Atoi(parts[1])
+		if err1 != nil || err2 != nil {
+			return ColorValue{}, ErrBadInput
+		}
+
+		return ColorValue{Hue: part1, Saturation: part2}, nil
+	}
+
+	return ColorValue{}, ErrUnknownColorFormat
+}

models/device.go

@@ -0,0 +1,122 @@
+package models
+
+import (
+	"context"
+	"strings"
+)
+
+type Device struct {
+	ID           int                `json:"id"`
+	BridgeID     int                `json:"bridgeID"`
+	Icon         string             `json:"icon"`
+	Name         string             `json:"name"`
+	Capabilities []DeviceCapability `json:"capabilities"`
+	Properties   map[string]string  `json:"properties"`
+	State        DeviceState        `json:"state"`
+	Tags         []string           `json:"tags"`
+}
+
+// DeviceState contains optional state values that
+//  - Power: Whether the device is powered on
+//  - Color: Color value, if a color setting can be set on the device
+//  - Intensity: e.g. brightness, from 0-255
+//  - Temperature: e.g. for thermostats
+type DeviceState struct {
+	Power       bool       `json:"power"`
+	Color       ColorValue `json:"color,omitempty"`
+	Intensity   int        `json:"intensity,omitempty"`
+	Temperature int        `json:"temperature"`
+}
+
+type NewDeviceState struct {
+	Power       *bool   `json:"power"`
+	Color       *string `json:"color"`
+	Intensity   int     `json:"intensity"`
+	Temperature int     `json:"temperature"`
+}
+
+type DeviceCapability string
+
+type DeviceRepository interface {
+	FindByID(ctx context.Context, id int) (*Device, error)
+	FetchByReference(ctx context.Context, kind ReferenceKind, value string) ([]Device, error)
+	Save(ctx context.Context, device *Device) error
+	Delete(ctx context.Context, device *Device) error
+}
+
+var (
+	DCPower         DeviceCapability = "Power"
+	DCColorHS       DeviceCapability = "ColorHS"
+	DCColorKelvin   DeviceCapability = "ColorKelvin"
+	DCButtonDefault DeviceCapability = "ButtonDefault"
+	DCButtonOn      DeviceCapability = "ButtonOn"
+	DCButtonOff     DeviceCapability = "ButtonOff"
+	DCButtonPlus    DeviceCapability = "ButtonPlus"
+	DCButtonMinus   DeviceCapability = "ButtonMinus"
+	DCButtonToggle  DeviceCapability = "ButtonToggle"
+	DCIntensity     DeviceCapability = "Intensity"
+	DCTemperature   DeviceCapability = "Temperature"
+)
+
+var Capabilities = []DeviceCapability{
+	DCPower,
+	DCColorHS,
+	DCColorKelvin,
+	DCButtonDefault,
+	DCButtonOn,
+	DCButtonOff,
+	DCButtonPlus,
+	DCButtonMinus,
+	DCButtonToggle,
+	DCIntensity,
+	DCTemperature,
+}
+
+func (d *Device) Validate() error {
+	d.Name = strings.Trim(d.Name, " \t\n ")
+	if d.Name == "" {
+		return ErrInvalidName
+	}
+
+	newCaps := make([]DeviceCapability, 0, len(d.Capabilities))
+	for _, currCap := range d.Capabilities {
+		for _, validCap := range Capabilities {
+			if currCap == validCap {
+				newCaps = append(newCaps, currCap)
+				break
+			}
+		}
+	}
+	d.Capabilities = newCaps
+
+	return nil
+}
+
+func (d *Device) HasCapability(capacity DeviceCapability) bool {
+	for _, c := range d.Capabilities {
+		if c == capacity {
+			return true
+		}
+	}
+
+	return false
+}
+
+func (d *Device) SetState(newState NewDeviceState) error {
+	if newState.Power != nil && d.HasCapability(DCPower) {
+		d.State.Power = *newState.Power
+	}
+
+	if newState.Color != nil {
+		parsed, err := ParseColorValue(*newState.Color)
+		if err != nil {
+			return err
+		}
+
+		if (parsed.IsKelvin() && d.HasCapability(DCColorKelvin)) || (parsed.IsHueSat() && d.HasCapability(DCColorHS)) {
+			d.State.Color = parsed
+		}
+	}
+
+	return nil
+}

models/driver.go

@@ -0,0 +1,14 @@
+package models
+
+import "context"
+
+type DriverResolver interface {
+	ResolveFor(bridge Bridge) (Driver, error)
+}
+
+type Driver interface {
+	SearchBridge(ctx context.Context, address string) (Bridge, error)
+	SearchDevices(ctx context.Context, bridge Bridge) ([]Device, error)
+	Consume(ctx context.Context, bridge Bridge, devices []Device, ch chan Event) (chan <-struct{}, error)
+	Publish(ctx context.Context, bridge Bridge, device Device) error
+}

models/errors.go

@@ -0,0 +1,8 @@
+package models
+
+import "errors"
+
+var ErrInvalidName = errors.New("invalid name")
+var ErrBadInput = errors.New("bad input")
+var ErrBadColor = errors.New("bad color")
+var ErrUnknownColorFormat = errors.New("unknown color format")

models/event.go

@@ -0,0 +1,18 @@
+package models
+
+type Event struct {
+	Name    string            `json:"name"`
+	Payload map[string]string `json:"payload,omitempty"`
+}
+
+func (e *Event) AddPayload(key, value string) {
+	if e.Payload == nil {
+		e.Payload = make(map[string]string, 8)
+	}
+
+	e.Payload[key] = value
+}
+
+func (e *Event) HasPayload(key string) bool {
+	return e.Payload != nil && e.Payload[key] != ""
+}

models/eventhandler.go

@@ -0,0 +1,121 @@
+package models
+
+import (
+	"context"
+	"regexp"
+	"strconv"
+	"strings"
+)
+
+type EventHandler struct {
+	ID          int                       `json:"id"`
+	EventName   string                    `json:"eventName"`
+	Conditions  map[string]EventCondition `json:"conditions"`
+	TargetKind  ReferenceKind             `json:"targetType"`
+	TargetValue string                    `json:"targetValue"`
+}
+
+type EventHandlerRepository interface {
+	FindByID(ctx context.Context, id int) (EventHandler, error)
+	FetchAll(ctx context.Context) ([]EventHandler, error)
+	Save(ctx context.Context, handler *EventHandler)
+	Delete(ctx context.Context, handler *EventHandler)
+}
+
+type EventCondition struct {
+	EQ  string `json:"eq,omitempty"`
+	GT  string `json:"gt,omitempty"`
+	GTE string `json:"gte,omitempty"`
+	LT  string `json:"lt,omitempty"`
+	LTE string `json:"lte,omitempty"`
+}
+
+func (h *EventHandler) MatchesEvent(event Event, targets []Device) bool {
+	if event.Name != h.EventName {
+		return false
+	}
+
+	for key, condition := range h.Conditions {
+		if !event.HasPayload(key) {
+			return false
+		}
+
+		if !condition.check(key, event.Payload[key], targets) {
+			return false
+		}
+	}
+
+	return true
+}
+
+func (c *EventCondition) check(key, value string, targets []Device) bool {
+	any := strings.Index(key, "any.") == 0
+	all := strings.Index(key, "all.") == 0
+	if any || all && len(key) > 4 {
+		count := 0
+		for _, target := range targets {
+			if c.checkDevice(key[4:], target) {
+				count++
+			}
+		}
+
+		return (any && count > 0) || (all && count == len(targets))
+	}
+
+	return c.matches(value)
+}
+
+func (c *EventCondition) checkDevice(key string, device Device) bool {
+	switch key {
+	case "power":
+		return c.matches(strconv.FormatBool(device.State.Power))
+	case "color":
+		return c.matches(device.State.Color.String())
+	case "intensity":
+		return c.matches(strconv.Itoa(device.State.Intensity))
+	case "temperature":
+		return c.matches(strconv.Itoa(device.State.Temperature))
+	}
+
+	return false
+}
+
+var numRegex = regexp.MustCompile("^{-[0-9].}+$")
+
+func (c *EventCondition) matches(value string) bool {
+	if numRegex.MatchString(value) {
+		numValue, _ := strconv.ParseFloat(c.LT, 64)
+		stillAlive := true
+
+		if c.LT != "" {
+			lt, _ := strconv.ParseFloat(c.LT, 64)
+			stillAlive = numValue < lt
+		}
+
+		if stillAlive && c.LTE != "" {
+			lte, _ := strconv.ParseFloat(c.LTE, 64)
+			stillAlive = numValue <= lte
+		}
+
+		if stillAlive && c.EQ != "" {
+			eq, _ := strconv.ParseFloat(c.EQ, 64)
+			stillAlive = numValue == eq
+		}
+
+		if stillAlive && c.GTE != "" {
+			gte, _ := strconv.ParseFloat(c.GTE, 64)
+			stillAlive = numValue == gte
+		}
+
+		if stillAlive && c.GT != "" {
+			gt, _ := strconv.ParseFloat(c.GT, 64)
+			stillAlive = numValue > gt
+		}
+
+		return stillAlive
+	} else if c.EQ != "" {
+		return strings.ToLower(c.EQ) == strings.ToLower(value)
+	} else {
+		return false
+	}
+}

models/shared.go

@@ -0,0 +1,11 @@
+package models
+
+type ReferenceKind string
+
+var (
+	RTDeviceID ReferenceKind = "DeviceID"
+	RTBridgeID ReferenceKind = "BridgeID"
+	RTTag      ReferenceKind = "Tag"
+)
+
+

webui

@@ -0,0 +1 @@
+Subproject commit 3bb61eb266a5a02d6169e8937fab332ede4b7637