package web

import "testing"

func TestResolvePreset(t *testing.T) {
	cases := []struct {
		pair string
		dark bool
		want string
	}{
		{"", false, "midnight-light"},
		{"", true, "midnight"},
		{"midnight", false, "midnight-light"},
		{"midnight", true, "midnight"},
		{"smooth", false, "smooth"},
		{"smooth", true, "smooth-dark"},
		{"pastel-lavender", true, "pastel-lavender-dark"},
		{"pastel-peach", false, "pastel-peach"},
		{"pastel-cloud", true, "pastel-cloud-dark"},
		{"bogus", true, "midnight"},
		{"bogus", false, "midnight-light"},
		// explicit variant ids also resolve (URL ?theme= may pass them)
		{"smooth-dark", true, "midnight"},
	}
	for _, c := range cases {
		if got := ResolvePreset(c.pair, c.dark); got != c.want {
			t.Errorf("ResolvePreset(%q, %v) = %q, want %q", c.pair, c.dark, got, c.want)
		}
	}
}

func TestSetDefaultDark(t *testing.T) {
	for _, off := range []string{"false", "0", "off", "OFF", " false "} {
		DefaultDark = true
		SetDefaultDark(off)
		if DefaultDark {
			t.Errorf("SetDefaultDark(%q): want dark off", off)
		}
	}
	for _, on := range []string{"true", "1", "on", "anything"} {
		DefaultDark = false
		SetDefaultDark(on)
		if !DefaultDark {
			t.Errorf("SetDefaultDark(%q): want dark on", on)
		}
	}
	DefaultDark = true
}