package main

import (
	"errors"
	"fmt"
	"strings"
	"syscall/js"

	promises "codeberg.org/danjones000/go-promises"
	"codeberg.org/danjones000/go-promises/internal"
)

func main() {
	fmt.Println("Some go")

	js.Global().Set("add", promises.PromisifyGoFunc(func(_ js.Value, args []js.Value) (any, error) {
		if len(args) < 2 {
			return nil, errors.New("add called with too few arguments")
		}
		a := args[0]
		b := args[1]

		if a.Type() != js.TypeNumber {
			return nil, fmt.Errorf("First argument must be a number. %s given", a.Type())
		}

		if b.Type() != js.TypeNumber {
			return nil, fmt.Errorf("secong argument must be a number. %s given", b.Type())
		}

		return internal.Add(a.Int(), b.Int()), nil
	}))

	js.Global().Set("getUser", promises.PromisifyGoFunc(func(this js.Value, args []js.Value) (any, error) {
		if len(args) < 2 {
			return nil, errors.New("getUser called with too few arguments")
		}
		name := args[0]
		age := args[1]

		if name.Type() != js.TypeString {
			return nil, fmt.Errorf("First argument must be a string. %s given", name.Type())
		}
		if age.Type() != js.TypeNumber {
			return nil, fmt.Errorf("Second argument must be a string. %s given", age.Type())
		}
		return internal.GetUser(name.String(), age.Int()), nil
	}))

	js.Global().Get("String").Get("prototype").Set("toTitleCase", js.FuncOf(func(this js.Value, _ []js.Value) any {
		return strings.Title(this.String())
	}))

	<-make(chan struct{})
}