package internal

import (
	"encoding/json"
	"log"
	"sync"
	"time"

	"github.com/jcollie/go-homeassistant"
	"github.com/jcollie/go-streamdeck"
)

// ServiceInfo .
type ServiceInfo struct {
	Domain  string
	Service string
	Data    interface{}
}

// DynamicIconButton .
type DynamicIconButton struct {
	sync.Mutex
	ha        *homeassistant.Connection
	sd        *streamdeck.StreamDeck
	lastState string
	pressed   bool
	EntityID  string
	Button    ButtonInfo
	Icon      DynamicIconInfo
	Service   ServiceInfo
}

// DynamicIconInfo .
type DynamicIconInfo struct {
	ForState func(bool, string) streamdeck.IconButton
}

// NewDynamicIconButton .
func NewDynamicIconButton(
	ha *homeassistant.Connection,
	sd *streamdeck.StreamDeck,
	entityID string,
	button ButtonInfo,
	icon DynamicIconInfo,
	service ServiceInfo,
) *DynamicIconButton {
	b := new(DynamicIconButton)
	b.ha = ha
	b.sd = sd
	b.EntityID = entityID
	b.Button = button
	b.Icon = icon
	b.Service = service
	myButtons = append(myButtons, b)
	sd.SetCallback(b.Button.X, b.Button.Y, b)
	return b
}

// InitializeButton .
func (b *DynamicIconButton) InitializeButton() {
	b.Lock()
	defer b.Unlock()
	iconButton := b.Icon.ForState(b.pressed, b.lastState)
	err := b.sd.FillIcon(b.Button.X, b.Button.Y, iconButton)
	if err != nil {
		log.Printf("problem trying to fill icon: %+v", err)
	}
}

// StateChange .
func (b *DynamicIconButton) StateChange(entityID string, newState string) {
	if entityID == b.EntityID {
		b.Lock()
		defer b.Unlock()
		b.lastState = newState
		iconButton := b.Icon.ForState(b.pressed, b.lastState)
		err := b.sd.FillIcon(b.Button.X, b.Button.Y, iconButton)
		if err != nil {
			log.Printf("problem trying to fill icon: %+v", err)
		}
	}
}

// HomeAssistantToggle .
type HomeAssistantToggle struct {
	EntityID string `json:"entity_id"`
}

// ButtonPressed .
func (b *DynamicIconButton) ButtonPressed(sd *streamdeck.StreamDeck, x int, y int, timestamp time.Time) {
	b.Lock()
	defer b.Unlock()
	log.Printf("pressed %d %d %s\n", x, y, timestamp)
	b.pressed = true
	iconButton := b.Icon.ForState(b.pressed, b.lastState)
	err := b.sd.FillIcon(b.Button.X, b.Button.Y, iconButton)
	if err != nil {
		log.Printf("problem trying to fill icon: %+v", err)
	}
}

// ButtonReleased .
func (b *DynamicIconButton) ButtonReleased(sd *streamdeck.StreamDeck, x int, y int, timestamp time.Time) {
	b.Lock()
	defer b.Unlock()
	log.Printf("released %d %d %s\n", x, y, timestamp)
	b.pressed = false
	iconButton := b.Icon.ForState(b.pressed, b.lastState)
	err := b.sd.FillIcon(b.Button.X, b.Button.Y, iconButton)
	if err != nil {
		log.Printf("problem trying to fill icon: %+v", err)
	}
	b.ha.CallService(b.Service.Domain, b.Service.Service, b.Service.Data, b)
}

// HandleResult .
func (b *DynamicIconButton) HandleResult(ha *homeassistant.Connection, id uint64, success bool, result json.RawMessage) {
	log.Printf("result: %v %s\n", success, string(result))
	ha.RemoveHandler(id)
}

// HandleClose .
func (b *DynamicIconButton) HandleClose(ha *homeassistant.Connection, id uint64) {
	log.Printf("homeassistant closed")
}