package ui

import (
	"runtime"

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

	"git.wxccs.org/iceking2nd/winauth-go/internal/i18n"
	"git.wxccs.org/iceking2nd/winauth-go/internal/version"
)

// aboutDialog is a read-only popup describing the build, runtime and a
// short credits / project link blurb. Click "Close" to dismiss.
type aboutDialog struct {
	closeBt widget.Clickable
}

func newAboutDialog() *aboutDialog { return &aboutDialog{} }

// Layout follows the simpler "single button" contract: onDone is called
// with no arguments when the user dismisses the dialog.
func (d *aboutDialog) Layout(
	gtx layout.Context, th *material.Theme,
	onDone func(),
) layout.Dimensions {
	if d.closeBt.Clicked(gtx) {
		onDone()
		return layout.Dimensions{Size: gtx.Constraints.Max}
	}

	body := func(gtx layout.Context) layout.Dimensions {
		line := func(text string) layout.FlexChild {
			return layout.Rigid(func(gtx layout.Context) layout.Dimensions {
				return layout.Inset{Top: unit.Dp(2), Bottom: unit.Dp(2)}.Layout(gtx,
					material.Body2(th, text).Layout)
			})
		}
		return layout.Flex{Axis: layout.Vertical}.Layout(gtx,
			line(i18n.T("about_app_name")),
			line(i18n.T("about_version_label")+": "+version.String()),
			line(i18n.T("about_runtime_label")+": "+runtime.Version()+" ("+runtime.GOOS+"/"+runtime.GOARCH+")"),
			layout.Rigid(layout.Spacer{Height: unit.Dp(8)}.Layout),
			line(i18n.T("about_project_label")+": "+i18n.T("about_project_url")),
			line(i18n.T("about_license_label")+": "+i18n.T("about_license_value")),
			layout.Rigid(layout.Spacer{Height: unit.Dp(8)}.Layout),
			line(i18n.T("about_credits")),
		)
	}

	return modalCardCancel(gtx, th, i18n.T("dialog_about_title"),
		i18n.T("btn_close"), &d.closeBt, body)
}