Big Refactor (#2)

Refactor Everything.

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

internal/config/make_rule_targets.go

@@ -0,0 +1,56 @@
+package config
+
+import (
+	"errors"
+	"fmt"
+
+	"git.annabunches.net/annabunches/joyful/internal/mappingrules"
+	"github.com/holoplot/go-evdev"
+)
+
+func makeRuleTargetButton(targetConfig RuleTargetConfig, devs map[string]*evdev.InputDevice) (*mappingrules.RuleTargetButton, error) {
+	device, ok := devs[targetConfig.Device]
+	if !ok {
+		return nil, fmt.Errorf("non-existent device '%s'", targetConfig.Device)
+	}
+
+	eventCode, ok := evdev.KEYFromString[targetConfig.Button]
+	if !ok {
+		return nil, fmt.Errorf("invalid button code '%s'", targetConfig.Button)
+	}
+
+	return mappingrules.NewRuleTargetButton(
+		targetConfig.Device,
+		device,
+		eventCode,
+		targetConfig.Inverted,
+	), nil
+}
+
+func makeRuleTargetAxis(targetConfig RuleTargetConfig, devs map[string]*evdev.InputDevice) (*mappingrules.RuleTargetAxis, error) {
+	device, ok := devs[targetConfig.Device]
+	if !ok {
+		return nil, fmt.Errorf("non-existent device '%s'", targetConfig.Device)
+	}
+
+	eventCode, ok := evdev.ABSFromString[targetConfig.Axis]
+	if !ok {
+		return nil, fmt.Errorf("invalid button code '%s'", targetConfig.Button)
+	}
+
+	return mappingrules.NewRuleTargetAxis(
+		targetConfig.Device,
+		device,
+		eventCode,
+		targetConfig.Inverted,
+		0, 0, 0, // TODO: replace these with real values
+	), nil
+}
+
+func makeRuleTargetModeSelect(targetConfig RuleTargetConfig, allModes []string) (*mappingrules.RuleTargetModeSelect, error) {
+	if ok := validateModes(targetConfig.Modes, allModes); !ok {
+		return nil, errors.New("undefined mode in mode select list")
+	}
+
+	return mappingrules.NewRuleTargetModeSelect(targetConfig.Modes)
+}