rewrite in go and compile to wasm

main.go

@@ -0,0 +1,72 @@
+package main
+
+import (
+	"fmt"
+	"syscall/js"
+	wfa "wfa/pkg"
+)
+
+func main() {
+	c := make(chan bool)
+	js.Global().Set("wfAlign", js.FuncOf(wfAlign))
+	<-c
+}
+
+func wfAlign(this js.Value, args []js.Value) interface{} {
+	if len(args) != 4 {
+		fmt.Println("invalid number of args, requires 4: s1, s2, penalties, doCIGAR")
+		return nil
+	}
+
+	if args[0].Type() != js.TypeString {
+		fmt.Println("s1 should be a string")
+		return nil
+	}
+
+	s1 := args[0].String()
+
+	if args[1].Type() != js.TypeString {
+		fmt.Println("s2 should be a string")
+		return nil
+	}
+
+	s2 := args[1].String()
+
+	if args[2].Type() != js.TypeObject {
+		fmt.Println("penalties should be a map with key values m, x, o, e")
+		return nil
+	}
+
+	if args[2].Get("m").IsUndefined() || args[2].Get("x").IsUndefined() || args[2].Get("o").IsUndefined() || args[2].Get("e").IsUndefined() {
+		fmt.Println("penalties should be a map with key values m, x, o, e")
+		return nil
+	}
+
+	m := args[2].Get("m").Int()
+	x := args[2].Get("x").Int()
+	o := args[2].Get("o").Int()
+	e := args[2].Get("e").Int()
+
+	penalties := wfa.Penalty{
+		M: m,
+		X: x,
+		O: o,
+		E: e,
+	}
+
+	if args[3].Type() != js.TypeBoolean {
+		fmt.Println("doCIGAR should be a boolean")
+		return nil
+	}
+
+	doCIGAR := args[3].Bool()
+
+	// Call the actual func.
+	result := wfa.WFAlign(s1, s2, penalties, doCIGAR)
+	resultMap := map[string]interface{}{
+		"score": result.Score,
+		"CIGAR": result.CIGAR,
+	}
+
+	return js.ValueOf(resultMap)
+}