//go:build example
// +build example

//
// Do not build by default.

package main

import (
	"fmt"
	"log"
	"time"

	"gobot.io/x/gobot/v2"
	"gobot.io/x/gobot/v2/drivers/i2c"
	"gobot.io/x/gobot/v2/platforms/tinkerboard"
)

// Wiring
// PWR  Tinkerboard: 1 (+3.3V, VCC), 6, 9, 14, 20 (GND)
// I2C1 Tinkerboard: 3 (SDA), 5 (SCL)
// PCF8583 DIP package: 1 (OSCI, event), 2 (OSCO, nc), 3 (A0 - GND), 4 (VSS, GND), 5 (SDA), 6 (SCL), 7 (/INT, nc), 8 (VDD, +3.3V)
// Note: event can be created by e.g. an debounced button
func main() {
	board := tinkerboard.NewAdaptor()
	pcf := i2c.NewPCF8583Driver(board, i2c.WithBus(1), i2c.WithPCF8583Mode(i2c.PCF8583CtrlModeCounter))

	work := func() {
		lastCnt := int32(1234)

		if err := pcf.WriteCounter(lastCnt); err != nil {
			fmt.Println(err)
		}

		gobot.Every(1000*time.Millisecond, func() {
			if val, err := pcf.ReadCounter(); err != nil {
				fmt.Println(err)
			} else {
				log.Printf("read Counter: %d, diff [Hz]: %d", val, val-lastCnt)
				lastCnt = val
			}

			ramVal, err := pcf.ReadRAM(uint8(0))
			if err != nil {
				fmt.Println(err)
			} else {
				log.Printf("read RAM: %d", ramVal)
				ramVal++
			}
			if err := pcf.WriteRAM(uint8(0), ramVal); err != nil {
				fmt.Println(err)
			}
		})
	}

	robot := gobot.NewRobot("pcfBot",
		[]gobot.Connection{board},
		[]gobot.Device{pcf},
		work,
	)

	robot.Start()
}