package ui

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

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

// vendor identifies which Add dialog should be opened next.
type vendor int

const (
	vendorNone vendor = iota
	vendorGoogle
	vendorMicrosoft
	vendorOkta
	vendorHOTP
	vendorBattleNet
	vendorBattleNetRestore
	vendorSteam
	vendorScanQR
)

// vendorMenu is the little popup shown after clicking the Add button.
// It lets the user pick which kind of authenticator to enroll. Selecting
// any entry returns that vendor via Pick(); Cancel returns vendorNone and
// signals the menu should close.
type vendorMenu struct {
	googleBtn      widget.Clickable
	microsoftBtn   widget.Clickable
	oktaBtn        widget.Clickable
	hotpBtn        widget.Clickable
	bnetBtn        widget.Clickable
	bnetRestoreBtn widget.Clickable
	steamBtn       widget.Clickable
	scanQRBtn      widget.Clickable
	cancelBtn      widget.Clickable
}

func newVendorMenu() *vendorMenu { return &vendorMenu{} }

// Pick returns the vendor selected this frame (vendorNone if no click) and
// whether the menu should close (true on any click, including Cancel).
func (m *vendorMenu) Pick(gtx layout.Context) (vendor, bool) {
	switch {
	case m.googleBtn.Clicked(gtx):
		return vendorGoogle, true
	case m.microsoftBtn.Clicked(gtx):
		return vendorMicrosoft, true
	case m.oktaBtn.Clicked(gtx):
		return vendorOkta, true
	case m.hotpBtn.Clicked(gtx):
		return vendorHOTP, true
	case m.bnetBtn.Clicked(gtx):
		return vendorBattleNet, true
	case m.bnetRestoreBtn.Clicked(gtx):
		return vendorBattleNetRestore, true
	case m.steamBtn.Clicked(gtx):
		return vendorSteam, true
	case m.scanQRBtn.Clicked(gtx):
		return vendorScanQR, true
	case m.cancelBtn.Clicked(gtx):
		return vendorNone, true
	}
	return vendorNone, false
}

func (m *vendorMenu) Layout(gtx layout.Context, th *material.Theme) layout.Dimensions {
	fillBackground(gtx, activePalette.ScrimBg)

	row := func(btn *widget.Clickable, label string) layout.FlexChild {
		return layout.Rigid(func(gtx layout.Context) layout.Dimensions {
			return layout.Inset{Top: unit.Dp(4), Bottom: unit.Dp(4)}.Layout(gtx,
				func(gtx layout.Context) layout.Dimensions {
					gtx.Constraints.Min.X = gtx.Constraints.Max.X
					return material.Button(th, btn, label).Layout(gtx)
				})
		})
	}

	return layout.Center.Layout(gtx, func(gtx layout.Context) layout.Dimensions {
		gtx.Constraints.Max.X = gtx.Dp(320)
		return widget.Border{
			Color:        activePalette.DialogBorder,
			CornerRadius: unit.Dp(4),
			Width:        unit.Dp(1),
		}.Layout(gtx, func(gtx layout.Context) layout.Dimensions {
			fillBackground(gtx, activePalette.DialogBg)
			return layout.UniformInset(unit.Dp(16)).Layout(gtx, func(gtx layout.Context) layout.Dimensions {
				return layout.Flex{Axis: layout.Vertical}.Layout(gtx,
					layout.Rigid(material.H6(th, i18n.T("menu_choose_vendor")).Layout),
					layout.Rigid(layout.Spacer{Height: unit.Dp(12)}.Layout),
					row(&m.googleBtn, i18n.T("vendor_google")),
					row(&m.microsoftBtn, i18n.T("vendor_microsoft")),
					row(&m.oktaBtn, i18n.T("vendor_okta")),
					row(&m.hotpBtn, i18n.T("vendor_hotp")),
					row(&m.bnetBtn, i18n.T("vendor_battlenet")),
					row(&m.bnetRestoreBtn, i18n.T("vendor_battlenet_restore")),
					row(&m.steamBtn, i18n.T("vendor_steam")),
					row(&m.scanQRBtn, i18n.T("vendor_scan_qr")),
					layout.Rigid(layout.Spacer{Height: unit.Dp(8)}.Layout),
					layout.Rigid(func(gtx layout.Context) layout.Dimensions {
						return layout.Flex{Axis: layout.Horizontal, Spacing: layout.SpaceStart}.Layout(gtx,
							layout.Rigid(material.Button(th, &m.cancelBtn, i18n.T("btn_cancel")).Layout),
						)
					}),
				)
			})
		})
	})
}