Big Refactor (#2)

Refactor Everything.

Co-authored-by: Anna Rose Wiggins <annabunches@gmail.com>
Co-committed-by: Anna Rose Wiggins <annabunches@gmail.com>

internal/mappingrules/mapping_rule_combo.go

@@ -1,49 +0,0 @@
-package mappingrules
-
-import "github.com/holoplot/go-evdev"
-
-// A Combo Mapping Rule can require multiple physical button presses for a single output button
-type MappingRuleCombo struct {
-	MappingRuleBase
-	Inputs []*RuleTargetButton
-	Output *RuleTargetButton
-	State  int
-}
-
-func (rule *MappingRuleCombo) MatchEvent(device *evdev.InputDevice, event *evdev.InputEvent, mode *string) (*evdev.InputDevice, *evdev.InputEvent) {
-	if !rule.MappingRuleBase.modeCheck(mode) {
-		return nil, nil
-	}
-
-	// Check each of the inputs, and if we find a match, proceed
-	var match RuleTarget
-	for _, input := range rule.Inputs {
-		if device == input.GetDevice() &&
-			event.Code == input.GetCode() {
-			match = input
-		}
-	}
-
-	if match == nil {
-		return nil, nil
-	}
-
-	// Get the value and add/subtract it from State
-	inputValue := match.NormalizeValue(event.Value)
-	oldState := rule.State
-	if inputValue == 0 {
-		rule.State = max(rule.State-1, 0)
-	}
-	if inputValue == 1 {
-		rule.State++
-	}
-	targetState := len(rule.Inputs)
-
-	if oldState == targetState-1 && rule.State == targetState {
-		return rule.Output.GetDevice(), rule.Output.CreateEvent(1, mode)
-	}
-	if oldState == targetState && rule.State == targetState-1 {
-		return rule.Output.GetDevice(), rule.Output.CreateEvent(0, mode)
-	}
-	return nil, nil
-}