refactor: massive refactor to have only one binary to call

internal/registry/registry.go

@@ -0,0 +1,42 @@
+package registry
+
+import (
+	"fmt"
+	"os"
+)
+
+type Runner interface {
+	Run(input string, part string)
+}
+
+type DayRunner[T any] struct {
+	ParseInput func(string) T
+	PartOne    func(T) int
+	PartTwo    func(T) int
+}
+
+func (r *DayRunner[T]) Run(input string, part string) {
+	data := r.ParseInput(input)
+	switch part {
+	case "":
+		fmt.Println(r.PartOne(data))
+		fmt.Println(r.PartTwo(data))
+	case "1":
+		fmt.Println(r.PartOne(data))
+	case "2":
+		fmt.Println(r.PartTwo(data))
+	default:
+		fmt.Fprintf(os.Stderr, "Invalid part: %s\n", part)
+		os.Exit(1)
+	}
+}
+
+var Days = make(map[string]any)
+
+func Register[T any](key string, parseInput func(string) T, partOne func(T) int, partTwo func(T) int) {
+	Days[key] = &DayRunner[T]{
+		ParseInput: parseInput,
+		PartOne:    partOne,
+		PartTwo:    partTwo,
+	}
+}