package ui

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

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

// setPasswordDialog collects a new password and a confirmation. Leaving
// both fields empty disables encryption (passphrase = nil).
type setPasswordDialog struct {
	pwEd      widget.Editor
	confirmEd widget.Editor
	okBtn     widget.Clickable
	cancelBtn widget.Clickable
	errorMsg  string
}

func newSetPasswordDialog() *setPasswordDialog {
	d := &setPasswordDialog{}
	d.pwEd.SingleLine = true
	d.pwEd.Mask = '*'
	d.confirmEd.SingleLine = true
	d.confirmEd.Mask = '*'
	return d
}

// Layout takes onDone(password, ok). ok=true on submit; an empty
// password byte slice signals "disable encryption", a non-empty slice
// is the new passphrase.
func (d *setPasswordDialog) Layout(
	gtx layout.Context, th *material.Theme,
	onDone func(password []byte, ok bool),
) layout.Dimensions {
	if d.okBtn.Clicked(gtx) {
		pw := d.pwEd.Text()
		confirm := d.confirmEd.Text()
		if pw != confirm {
			d.errorMsg = i18n.T("msg_password_mismatch")
		} else {
			onDone([]byte(pw), true)
			return layout.Dimensions{Size: gtx.Constraints.Max}
		}
	}
	if d.cancelBtn.Clicked(gtx) {
		onDone(nil, false)
		return layout.Dimensions{Size: gtx.Constraints.Max}
	}

	body := func(gtx layout.Context) layout.Dimensions {
		return layout.Flex{Axis: layout.Vertical}.Layout(gtx,
			layout.Rigid(labeledEditor(th, i18n.T("label_password"), &d.pwEd, "")),
			layout.Rigid(labeledEditor(th, i18n.T("label_password_confirm"), &d.confirmEd, "")),
			layout.Rigid(layout.Spacer{Height: unit.Dp(4)}.Layout),
			layout.Rigid(material.Caption(th, i18n.T("hint_password_empty_disables")).Layout),
			layout.Rigid(errorLabel(th, d.errorMsg)),
		)
	}
	return modalCard(gtx, th, i18n.T("dialog_set_password_title"),
		i18n.T("btn_ok"), i18n.T("btn_cancel"),
		&d.okBtn, &d.cancelBtn, body)
}