//to run this test you MUST install @uci/i2c which is not a dependency of @uci/mcp
// npm install @uci/i2c
const Bus = require('@uci/i2c').Bus,
	MCP = require('../lib/mcp23008-17'),
	expect = require('chai').expect,
	pause = require('@uci/utils').pPause

let bus = new Bus()

let ADDR = 0x24
let CHIP = 'MCP23017'
let MS = 500 // so humans can watch the light otherwise set to zero
let PORT = 'B'

let mcp = new MCP[CHIP](bus, ADDR, {
	pin_cfg_default: 'output',
});

(async function () {
	await mcp.init()
	await mcp.allOff(PORT) // start clean
	await eachpin()
	await somepins()
})()

//****************** TEST SUITES **********************
async function eachpin() {
	let result
	for (let pin of mcp.ports[PORT].pins) {
		await mcp.on(pin.address, PORT)
		result = await mcp.readPort(PORT)
		console.log(pin.address, result)
		await mcp.off(pin.address, PORT)
		await pause(MS)
	}
}

async function somepins() {

	let pins = [1, 7, 8]
	await mcp.on(pins, PORT, 'PLC')
	let shouldbe = [1, 7, 8]
	let result = await mcp.readPort(PORT, { format: 'PLC' })
	console.log(pins, shouldbe, result)
	await pause(MS)

	pins = [2, 1, 7]
	await mcp.on(pins, PORT, 'PLC')
	shouldbe = [2, 1, 7, 8]
	result = await mcp.readPort(PORT, { format: 'PLC' })
	console.log(pins, shouldbe, result)
	await pause(MS)

	pins = [2, 1, 6]
	await mcp.toggle(pins, PORT, 'PLC')
	shouldbe = [6, 7, 8]
	result = await mcp.readPort(PORT, { format: 'PLC' })
	console.log(pins, shouldbe, result)
	await pause(MS)

	pins = [2, 1, 7]
	await mcp.off(pins, PORT, 'PLC')
	shouldbe = [6, 8]
	result = await mcp.readPort(PORT, { format: 'PLC' })
	console.log(pins, shouldbe, result)
	await pause(MS)
	await mcp.allOff(PORT) // clear port after each test
}