split src/devices/input into src/devices/input/{raw,wrap}

src/device/input/wrap/wrap.go

@@ -0,0 +1,64 @@
+package wrap
+
+import (
+	"context"
+	"mayhem-party/src/device/input/raw"
+	"os"
+	"syscall"
+)
+
+type Wrap interface {
+	Read() []Button
+	Close()
+}
+
+func New(ctx context.Context, src raw.Raw) Wrap {
+	maker := func() Wrap {
+		return explicit{src: src}
+	}
+	if os.Getenv("WRAP_BUFFERED") == "true" {
+		oldMaker := maker
+		maker = func() Wrap {
+			return NewBuffered(ctx, oldMaker())
+		}
+	}
+	if p := os.Getenv("WRAP_REMAP_FILE"); p != "" {
+		oldMaker := maker
+		maker = func() Wrap {
+			return NewRemapFromFile(oldMaker(), p)
+		}
+	}
+	if os.Getenv("WRAP_REFRESH_ON_SIGUSR1") != "" {
+		oldMaker := maker
+		c := NewRefreshCh(syscall.SIGUSR1)
+		maker = func() Wrap {
+			return NewRefresh(oldMaker, c)
+		}
+	}
+	return maker()
+}
+
+type explicit struct {
+	src raw.Raw
+}
+
+func (e explicit) Close() {
+	e.src.Close()
+}
+
+func (e explicit) Read() []Button {
+	b := e.src.Read()
+	buttons := make([]Button, 0, len(b))
+	down := true
+	for i := range b {
+		if b[i] == '!' {
+			down = false
+		} else {
+			if b[i] != '\n' {
+				buttons = append(buttons, Button{Char: b[i], Down: down})
+			}
+			down = true
+		}
+	}
+	return buttons
+}