package mainwindow

import (
	"cloudsave/cmd/gui/window/about"
	"cloudsave/cmd/gui/window/credential"
	"cloudsave/cmd/gui/window/loading"
	"cloudsave/pkg/data"
	"cloudsave/pkg/remote"
	"cloudsave/pkg/remote/client"
	"cloudsave/pkg/sync"
	"fmt"
	"os"
	"path/filepath"

	"fyne.io/fyne/v2"
	"fyne.io/fyne/v2/container"
	"fyne.io/fyne/v2/dialog"
	"fyne.io/fyne/v2/theme"
	"fyne.io/fyne/v2/widget"
)

func Make(a fyne.App, d *data.Service) fyne.Window {
	w := a.NewWindow("CloudSave")
	w.Resize(fyne.NewSize(1000, 700))
	w.CenterOnScreen()

	games, err := d.AllGames()
	if err != nil {
		d := dialog.NewError(fmt.Errorf("failed to load datastore: %w", err), w)
		d.Show()
		d.SetOnClosed(func() {
			os.Exit(1)
		})
	}

	list := widget.NewList(
		func() int {
			return len(games)
		},
		func() fyne.CanvasObject {
			return widget.NewLabel("template")
		},
		func(i widget.ListItemID, o fyne.CanvasObject) {
			o.(*widget.Label).SetText(games[i].Name)
		})

	toolbar := widget.NewToolbar(
		widget.NewToolbarAction(theme.FolderNewIcon(), func() {
			folderSelection := dialog.NewFolderOpen(func(lu fyne.ListableURI, err error) {
				if err != nil {
					d := dialog.NewError(fmt.Errorf("failed to open window: %w", err), w)
					d.Show()
					return
				}
				if lu == nil {
					return
				}
				confirmDialog := dialog.NewConfirm("Add", "Do you want to add and scan '"+lu.Path()+"'?", func(accepted bool) {
					if !accepted {
						return
					}
					name := filepath.Base(lu.Path())

					loadingDialog := loading.Make("Scanning directory", w)
					loadingDialog.Show()

					go func() {
						gameID, err := d.Add(name, lu.Path(), "")
						if err != nil {
							fyne.Do(func() {
								d := dialog.NewError(fmt.Errorf("failed to create metadata the directory: %w", err), w)
								d.Show()
								loadingDialog.Hide()
							})
							return
						}

						_, err = d.Scan(gameID)
						if err != nil {
							fyne.Do(func() {
								d := dialog.NewError(fmt.Errorf("failed to scan the directory: %w", err), w)
								d.Show()
								loadingDialog.Hide()
							})
							return
						}

						games, err = d.AllGames()
						if err != nil {
							fyne.Do(func() {
								d := dialog.NewError(fmt.Errorf("failed to load datastore: %w", err), w)
								d.Show()
								loadingDialog.Hide()
							})
							return
						}

						fyne.Do(func() {
							list.Refresh()
							loadingDialog.Hide()
						})
					}()
				}, w)
				confirmDialog.Show()
			}, w)
			folderSelection.Show()
		}),
		widget.NewToolbarSeparator(),
		widget.NewToolbarAction(theme.UploadIcon(), func() {
			doSync(d, w)
		}),
		widget.NewToolbarSpacer(),
		widget.NewToolbarAction(theme.HelpIcon(), func() {
			aboutWindow := about.Make(a)
			aboutWindow.Show()
		}),
	)

	content := container.NewBorder(toolbar, nil, nil, nil, list)
	w.SetContent(content)
	return w
}

func doSync(d *data.Service, w fyne.Window) error {
	remotes, err := remote.All()
	if err != nil {
		return err
	}

	i := 0
	nextCh := make(chan struct{})
	doneCh := make(chan struct{})

	var cd *credential.CredentialDialog

	go func() {
		nextCh <- struct{}{}
	}()

	for {
		select {
		case <-doneCh:
			return nil
		case <-nextCh:
			{
				cd = credential.Make(remotes[i].URL, func(v bool) {
					if !v {
						return
					}

					username, password := cd.Credentials()
					cli := client.New(remotes[i].URL, username, password)

					sync.NewSyncer(cli, d)

					fmt.Println(i)

					if i < len(remotes) {
						go func() {
							nextCh <- struct{}{}
						}()
					} else {
						go func() {
							doneCh <- struct{}{}
						}()
					}

				}, w)
				cd.Show()
			}
		}
	}
}