dependencies: [
	.package(url: "https://github.com/matis-schotte/PublishedKVO.git", from: "0.1.0")
]

class Example {
	@PublishedKVO(\.completedUnitCount)
	var progress = Progress(totalUnitCount: 2)
	
	@Published
	var textualRepresentation = "text"
}

let ex = Example()

// Set up the publishers
let c1 = ex.$progress.sink { print("\($0.fractionCompleted) completed") }
let c1 = ex.$textualRepresentation.sink { print("\($0)") }

// Interact with the class as usual
ex.progress.completedUnitCount += 1
// outputs "0.5 completed"

// And compare with Combines @Published (almost°) same behaviour
ex.textualRepresentation = "string"
// outputs "string"

ex.$progress.emit() // Re-emits the current value
ex.$progress.send(ex.progress) // Emits given value

class Example {
	@PublishedKVO(\.completedUnitCount)
	var progress1 = Progress(totalUnitCount: 5)
	
	@Published
	var progress2 = Progress(totalUnitCount: 5)
	
	@Published
	var progress3 = "0.0"
}

let ex = Example()

// Class using @PublishedKVO
let c1 = ex.$progress1.sink { print("$progress1 incomming \($0.fractionCompleted) actual \(ex.progress1.fractionCompleted)") }
// Class using @Published
let c2 = ex.$progress2.sink { print("$progress2 incomming \($0.fractionCompleted) actual \(ex.progress2.fractionCompleted)") }
// Struct using @Published
let c3 = ex.$progress3.sink { print("$progress3 incomming \($0) actual \(ex.progress3)") }

ex.progress1.completedUnitCount += 1
ex.progress2.completedUnitCount += 1
ex.progress3 = "0.2"

ex.progress1.completedUnitCount += 1
ex.progress2.completedUnitCount += 1
ex.progress3 = "0.4"

/* Outputs (incomming should new value, actual should be old value):
$progress1 incomming 0.0 actual 0.0
$progress2 incomming 0.0 actual 0.0
$progress3 incomming 0.0 actual 0.0

$progress1 incomming 0.2 actual 0.2
// no output from $progress2
$progress3 incomming 0.2 actual 0.0

$progress1 incomming 0.4 actual 0.4
// no output from $progress2
$progress3 incomming 0.4 actual 0.2
*/