package scopes_test

import (
	"fmt"
	tbase "testing"

	"git.sr.ht/~cco/go-scopes/lib/funky"
	"git.sr.ht/~cco/go-scopes/testing"
)

func TestFunky(tb *tbase.T) {
	t := testing.SetUp(tb)
	t.Run("maybe", MaybeTest)
	t.Run("either", EitherTest)
	t.Run("iterator", IteratorTest)
}

func MaybeTest(t *testing.T) {
	var i0 funky.Maybe[int] = funky.Nothing[int]()
	t.AssertEqual(i0.IsNothing(), true)
	var i1 funky.Maybe[int] = funky.Just(3)
	t.AssertEqual(i1.IsNothing(), false)
	t.AssertEqual(i1.Value(), 3)
}

func EitherTest(t *testing.T) {
	var e0 funky.Either[int] = funky.Right[int](7)
	t.AssertEqual(e0.Ok(), true)
	t.AssertEqual(e0.Right(), 7)
	var e1 funky.Either[int] = funky.Left[int](fmt.Errorf("Some Error"))
	t.AssertEqual(e1.Ok(), false)
	t.AssertEqual(fmt.Sprint(e1.Left()), "Some Error")
}

func IteratorTest(t *testing.T) {
	sl := []int{3, 4, 5}
	var it funky.Iterator[int] = funky.SliceIterator[int](sl)
	s12 := funky.Slice(it)
	t.AssertEqual(len(s12), 3)
	t.AssertEqual(s12[1], 4)
}