package main

import (
	"fmt"
	"math/bits"
	"strconv"
	"strings"

	"gioui.org/layout"
	"gioui.org/text"
	"gioui.org/unit"
	"gioui.org/widget"
	"gioui.org/widget/material"
)

type Float struct {
	val    float32
	editor widget.Editor
	th     *material.Theme
}

func NewFloat(th *material.Theme) Float {
	f := Float{th: th}
	f.editor.SetText(fmt.Sprintf("%.2f", f.val))
	f.editor.SingleLine = true
	f.editor.Alignment = text.Middle
	return f
}

func (f *Float) Set(v float32) {
	f.val = v
	f.editor.SetText(fmt.Sprintf("%.2f", f.val))
}

func (f *Float) Layout(gtx layout.Context) layout.Dimensions {
	inputString := f.editor.Text()
	inputString = strings.TrimSpace(inputString)
	inputFloat, err := strconv.ParseFloat(inputString, 32)
	if err != nil {
		f.editor.SetText("")
	} else {
		f.val = float32(inputFloat)
	}

	ed := material.Editor(f.th, &f.editor, "")

	border := widget.Border{
		Color:        black,
		CornerRadius: unit.Dp(3),
		Width:        unit.Dp(2),
	}

	inset := layout.Inset{
		Top:    unit.Dp(1),
		Bottom: unit.Dp(1),
		Left:   unit.Dp(3),
		Right:  unit.Dp(3),
	}

	return border.Layout(gtx,
		func(gtx layout.Context) layout.Dimensions {
			return inset.Layout(gtx, ed.Layout)
		},
	)
}

type Int struct {
	val    int
	editor widget.Editor
	th     *material.Theme
}

func NewInt(th *material.Theme) Int {
	i := Int{th: th}
	i.editor.SetText(fmt.Sprintf("%d", i.val))
	i.editor.SingleLine = true
	i.editor.Alignment = text.Middle
	return i
}

func (i *Int) Set(v int) {
	i.val = v
	i.editor.SetText(fmt.Sprintf("%d", i.val))
}

func (i *Int) Layout(gtx layout.Context) layout.Dimensions {
	inputString := i.editor.Text()
	inputString = strings.TrimSpace(inputString)
	inputInt, err := strconv.ParseInt(inputString, 10, bits.UintSize)
	if err != nil {
		i.editor.SetText("")
	} else {
		i.val = int(inputInt)
	}

	ed := material.Editor(i.th, &i.editor, "")

	border := widget.Border{
		Color:        black,
		CornerRadius: unit.Dp(3),
		Width:        unit.Dp(2),
	}

	inset := layout.Inset{
		Top:    unit.Dp(1),
		Bottom: unit.Dp(1),
		Left:   unit.Dp(3),
		Right:  unit.Dp(3),
	}

	return border.Layout(gtx,
		func(gtx layout.Context) layout.Dimensions {
			return inset.Layout(gtx, ed.Layout)
		},
	)
}