package nanoleaf

import (
	"encoding/binary"
	"git.aiterp.net/lucifer3/server/device"
	"time"
)

type EffectInfo struct {
	EffectsList []string `json:"effectsList"`
	Select      string   `json:"select"`
}

type PanelLayout struct {
	GlobalOrientation GlobalOrientation `json:"globalOrientation"`
	Data              PanelLayoutData   `json:"layout"`
}

type GlobalOrientation struct {
	Value int `json:"value"`
	Max   int `json:"max"`
	Min   int `json:"min"`
}

type PanelLayoutData struct {
	NumPanels    int            `json:"numPanels"`
	SideLength   int            `json:"sideLength"`
	PositionData []PositionData `json:"positionData"`
}

type PositionData struct {
	PanelID   uint16 `json:"panelId"`
	X         int    `json:"x"`
	Y         int    `json:"y"`
	O         int    `json:"o"`
	ShapeType int    `json:"shapeType"`
}

type StateBool struct {
	Value bool `json:"value"`
}

type StateInt struct {
	Value int `json:"value"`
	Max   int `json:"max"`
	Min   int `json:"min"`
}

type State struct {
	Brightness StateInt  `json:"brightness"`
	ColorMode  string    `json:"colorMode"`
	Ct         StateInt  `json:"ct"`
	Hue        StateInt  `json:"hue"`
	On         StateBool `json:"on"`
	Sat        StateInt  `json:"sat"`
}

type Overview struct {
	Name            string      `json:"name"`
	SerialNumber    string      `json:"serialNo"`
	Manufacturer    string      `json:"manufacturer"`
	FirmwareVersion string      `json:"firmwareVersion"`
	HardwareVersion string      `json:"hardwareVersion"`
	Model           string      `json:"model"`
	Effects         EffectInfo  `json:"effects"`
	PanelLayout     PanelLayout `json:"panelLayout"`
	State           State       `json:"state"`
}

type DeviceInfo struct {
	SerialNumber      string `json:"serialNumber"`
	HardwareVersion   string `json:"hardwareVersion"`
	FirmwareVersion   string `json:"firmwareVersion"`
	BootloaderVersion string `json:"bootloaderVersion"`
	ModelNumber       string `json:"modelNumber"`
}

type TokenResponse struct {
	Token string `json:"auth_token"`
}

type PanelUpdate []byte

func (u *PanelUpdate) Add(message [8]byte) {
	if len(*u) < 2 {
		*u = make([]byte, 2, 10)
	}

	binary.BigEndian.PutUint16(*u, binary.BigEndian.Uint16(*u)+1)

	*u = append(*u, message[:]...)
}

func (u *PanelUpdate) Len() int {
	if len(*u) < 2 {
		return 0
	}

	return int(binary.BigEndian.Uint16(*u))
}

type PanelEventMessage []byte

func (remote PanelEventMessage) Count() int {
	return int(binary.BigEndian.Uint16(remote[0:]))
}

func (remote PanelEventMessage) ValidateLength() bool {
	return len(remote) >= (2 + remote.Count()*5)
}

func (remote PanelEventMessage) PanelID(idx int) uint16 {
	return binary.BigEndian.Uint16(remote[2+(idx*5):])
}

func (remote PanelEventMessage) TouchType(idx int) int {
	value := int(remote[2+(idx*5)])
	return (value & 0b11100000) >> 5
}

func (remote PanelEventMessage) TouchStrength(idx int) int {
	value := int(remote[2+(idx*5)])
	return (value & 0b00011110) >> 1
}

func (remote PanelEventMessage) SwipedFromPanelID(idx int) uint16 {
	return binary.BigEndian.Uint16(remote[2+(idx*5)+3:])
}

var shapeTypeMap = map[int]string{
	0:  "Legacy Triangle",
	1:  "Rhythm",
	2:  "Square",
	3:  "Control Square Master",
	4:  "Control Square Passive",
	7:  "Hexagon",
	8:  "Triangle",
	9:  "Mini Triangle",
	12: "Shapes Controller",
}

var shapeIconMap = map[int]string{
	0:  "triangle",
	1:  "rhythm",
	2:  "Square",
	3:  "square",
	4:  "square",
	7:  "hexagon",
	8:  "triangle",
	9:  "triangle-small",
	12: "hexagon",
}

var shapeWidthMap = map[int]int{
	0:  150,
	1:  -1,
	2:  100,
	3:  100,
	4:  100,
	7:  67,
	8:  134,
	9:  67,
	12: -1,
}

var httpMessage = []byte(`{ "write": { "command": "display", "animType": "extControl", "extControlVersion": "v2" }}`)

type panel struct {
	ID     uint16
	FullID string

	On           bool
	Intensity    float64
	ColorRGBA    [4]byte
	TransitionAt time.Time

	O         int
	X         int
	Y         int
	ShapeType int

	Stale                bool
	SlowUpdates          int
	TicksUntilSlowUpdate int
}

func (p *panel) message() (message [8]byte) {
	transitionTime := p.TransitionAt.Sub(time.Now()).Round(time.Millisecond * 100)
	if transitionTime > maxTransitionTime {
		transitionTime = maxTransitionTime
	} else if transitionTime < 0 {
		transitionTime = 0
	}

	binary.BigEndian.PutUint16(message[0:], p.ID)
	copy(message[2:], p.ColorRGBA[:])
	binary.BigEndian.PutUint16(message[6:], uint16(transitionTime/(time.Millisecond*100)))

	return
}

func (p *panel) update(colorRGBA [4]byte, transitionAt time.Time) {
	if p.ColorRGBA != colorRGBA {
		p.ColorRGBA = colorRGBA
		p.Stale = true
		p.SlowUpdates = 3
		p.TicksUntilSlowUpdate = 10
	}
	p.TransitionAt = transitionAt
}

func (p *panel) apply(change device.State, transitionTime time.Time) {
	if change.Power != nil {
		p.On = *change.Power
	}

	if change.Intensity != nil {
		p.Intensity = *change.Intensity
	}

	if change.Color != nil {
		if !p.On {
			newColor := [4]byte{0, 0, 0, 0}
			if newColor != p.ColorRGBA {
				p.update(newColor, transitionTime)
			}
		}

		rgbColor, ok := change.Color.ToRGB()
		if !ok {
			newColor := [4]byte{255, 255, 255, 255}
			if newColor != p.ColorRGBA {
				p.update(newColor, transitionTime)
			}
		}

		rgb := rgbColor.RGB.AtIntensity(p.Intensity)
		red := byte(rgb.Red * 255.0001)
		green := byte(rgb.Green * 255.0001)
		blue := byte(rgb.Blue * 255.0001)
		newColor := [4]byte{red, green, blue, 255}
		if newColor != p.ColorRGBA {
			p.update(newColor, transitionTime)
		}
	}
}

type panelUpdate []byte

func (u *panelUpdate) Add(message [8]byte) {
	if len(*u) < 2 {
		*u = make([]byte, 2, 10)
	}

	binary.BigEndian.PutUint16(*u, binary.BigEndian.Uint16(*u)+1)

	*u = append(*u, message[:]...)
}

func (u *panelUpdate) Len() int {
	if len(*u) < 2 {
		return 0
	}

	return int(binary.BigEndian.Uint16(*u))
}

const maxTransitionTime = time.Minute * 109