expds/app/screen_home.go

/*
Copyright © Brian Buller <brian@bullercodeworks.com>

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
package app

import (
	"fmt"
	"strings"

	"git.bullercodeworks.com/brian/expds/data"
	"git.bullercodeworks.com/brian/expds/data/models"
	wd "git.bullercodeworks.com/brian/expds/widgets"
	w "git.bullercodeworks.com/brian/tcell-widgets"
	h "git.bullercodeworks.com/brian/tcell-widgets/helpers"
	"github.com/bluesky-social/indigo/atproto/syntax"
	"github.com/gdamore/tcell"
	"github.com/spf13/viper"
)

type ScreenHome struct {
	a     *App
	r     *data.Repo
	w, h  int
	style tcell.Style

	menuLayout *w.TopMenuLayout
	menu       *w.Menu

	layout  *w.LinearLayout
	columns *w.LinearLayout

	activePds   *models.Pds
	pdsListing  *wd.SimpleListWithHelp
	jsonContent *wd.JsonContent

	pdsListingTypes  []models.EntryType
	pdsNSIDs         []syntax.NSID
	expandedEntries  map[string]interface{}
	recordIdsToNSIDs map[string]syntax.NSID

	alert       *w.Alert
	alertLayout *w.LinearLayout

	cli *w.Cli

	cursor int
}

func (s *ScreenHome) Init(a *App) {
	s.a, s.r = a, a.repo
	s.style = a.style

	s.expandedEntries = make(map[string]interface{})
	s.recordIdsToNSIDs = make(map[string]syntax.NSID)

	s.menuLayout = w.NewTopMenuLayout("home.toplayout", s.style)
	s.initMenu()

	s.cli = w.NewCli("home.cli", s.style)
	s.initCli()

	s.alert = w.NewAlert("home.alert", s.style)
	s.alert.SetVisible(false)
	s.alertLayout = w.NewLinearLayout("home.alertlayout", s.style)
	s.alertLayout.Add(s.alert)

	s.layout = w.NewLinearLayout("home.layout", s.style)

	s.columns = w.NewLinearLayout("home.layout.columns", s.style)
	s.columns.SetOrientation(w.LinLayH)

	s.pdsListing = wd.NewSimpleListWithHelp("pdslisting", s.style)
	s.pdsListing.SetBorder(h.BRD_SIMPLE)
	s.pdsListing.SetTitle("No PDS Loaded")
	s.pdsListing.SetOnSelect(s.selectPdsListingEntry)
	s.pdsListing.SetOnChange(s.updateJsonView)
	s.pdsListing.SetVimMode(viper.GetBool(data.KeyVimMode))

	s.jsonContent = wd.NewJsonContent("jsoncontent", s.style)

	s.columns.AddAll(s.pdsListing, s.jsonContent)

	s.layout.AddAll(s.columns, s.cli)
	s.layout.SetWeight(s.columns, 4)
	s.menuLayout.SetWidget(s.layout)
}

func (s *ScreenHome) GetName() string { return "home" }
func (s *ScreenHome) HandleResize(ev *tcell.EventResize) {
	s.w, s.h = ev.Size()
	s.menuLayout.HandleResize(ev)
}

func (s *ScreenHome) HandleKey(ev *tcell.EventKey) bool {
	if s.alert.Visible() {
		return s.alert.HandleKey(ev)
	}
	if ev.Key() == tcell.KeyF12 {
		s.toggleCli()
		return true
	}

	return s.menuLayout.HandleKey(ev)
}
func (s *ScreenHome) HandleTime(ev *tcell.EventTime) { s.menuLayout.HandleTime(ev) }
func (s *ScreenHome) Draw()                          { s.a.DrawWidget(s.menuLayout) }
func (s *ScreenHome) Exit() error                    { return nil }
func (s *ScreenHome) Log(t string, a ...any) {
	s.cli.Log(t, a...)
	s.showCli()
}

func (s *ScreenHome) initMenu() {
	s.menuLayout.SetActive(true)
	menu := s.menuLayout.Menu()
	s.menuLayout.AddMenuItems(
		menu.CreateMenuItem("File", nil, 'f',
			menu.CreateMenuItem("Exit", func() bool {
				s.a.Exit()
				return true
			}, 'x'),
		),
		menu.CreateMenuItem("Settings", nil, 's',
			menu.CreateMenuItem("Toggle Vim Mode", func() bool {
				viper.Set(data.KeyVimMode, !viper.GetBool(data.KeyVimMode))
				viper.WriteConfig()
				s.update()
				return true
			}, 'v'),
		),
	)
}

func (s *ScreenHome) update() {
	s.pdsListing.SetVimMode(viper.GetBool(data.KeyVimMode))
}

func (s *ScreenHome) initCli() {
	s.cli.SetVisible(true)
	s.cli.AddCommand(w.NewCliCommand("getpds", s.cliGetPds))
}

func (s *ScreenHome) toggleCli() {
	if s.layout.Contains(s.cli) {
		s.layout.Delete(s.cli)
	} else {
		s.layout.Add(s.cli)
	}
}
func (s *ScreenHome) hideCli() {
	if s.layout.Contains(s.cli) {
		s.layout.Delete(s.cli)
	}
}
func (s *ScreenHome) showCli() {
	if !s.layout.Contains(s.cli) {
		s.layout.Add(s.cli)
	}
}

func (s *ScreenHome) cliGetPds(args ...string) bool {
	if len(args) == 0 {
		s.Log("No id given.")
		s.Log("Usage: 'getpds <atproto id>'")
		return true
	}
	pds, err := s.r.GetPDS(args[1])
	if err != nil {
		s.cli.Log(err.Error())
		return true
	}
	s.cli.Log("Retrieved: %s (%s)", pds.AtId, pds.Did)
	s.activePds = pds
	s.expandedEntries = make(map[string]interface{})
	s.updatePdsListing()
	s.updateJsonView(s.pdsListing.SelectedIndex(), s.pdsListing.GetSelectedItem())
	return true
}

func (s *ScreenHome) updatePdsListing() {
	s.pdsListing.SetTitle(fmt.Sprintf("%s (%s)", s.activePds.AtId.String(), s.activePds.Did.String()))
	// When we first get the pds, all entries are models.TypeNSID
	s.pdsListingTypes = []models.EntryType{}
	s.recordIdsToNSIDs = make(map[string]syntax.NSID)
	var wrk []string
	nsidList := s.activePds.NSIDStringList()
	for i, v := range nsidList {
		wrk = append(wrk, v)
		s.pdsListingTypes = append(s.pdsListingTypes, models.TypeNSID)
		if _, ok := s.expandedEntries[v]; ok {
			nsid := s.activePds.NSIDs[i]
			rIds := s.activePds.GetRecordIdsFor(nsid)
			for j := range rIds {
				wrk = append(wrk, fmt.Sprintf("• %s", rIds[j]))
				s.pdsListingTypes = append(s.pdsListingTypes, models.TypeRecord)
				s.recordIdsToNSIDs[rIds[j]] = nsid
			}
		}
	}
	s.pdsListing.SetList(wrk)
	s.hideCli()
}

func (s *ScreenHome) selectPdsListingEntry(idx int, nm string) bool {
	if !s.updateJsonView(idx, nm) {
		return false
	}

	switch s.pdsListingTypes[idx] {
	case models.TypeNSID:
		// Expand the NSID
		if _, ok := s.expandedEntries[nm]; ok {
			delete(s.expandedEntries, nm)
		} else {
			s.expandedEntries[nm] = new(interface{})
		}
		s.updatePdsListing()
		return true

	case models.TypeRecord:
		// If signed in and we can edit this, activate jsonContent in 'editable' mode
		s.jsonContent.SetEditable(true)
		s.columns.ActivateWidget(s.jsonContent)
		return true
	}

	return false
}

func (s *ScreenHome) updateJsonView(idx int, nm string) bool {
	if len(s.pdsListingTypes) < idx {
		s.Log("error finding pds listing type (idx: %d >= list length: %d", idx, len(s.pdsListingTypes))
		return false
	}
	// Update the jsonContent with the list of records
	switch s.pdsListingTypes[idx] {
	case models.TypeNSID:
		nsid, err := syntax.ParseNSID(nm)
		if err != nil {
			s.Log("error parsing NSID from %s: %w", nm, err)
			return false
		}
		recordIds := s.activePds.GetRecordIdsFor(nsid)
		s.jsonContent.SetValue(recordIds)
		return true

	case models.TypeRecord:
		var nsid syntax.NSID
		var ok bool
		nm, _ := strings.CutPrefix(nm, "• ")
		if nsid, ok = s.recordIdsToNSIDs[nm]; !ok {
			s.Log("error finding NSID for record %s", nm)
		}
		rId := fmt.Sprintf("%s/%s", nsid.String(), nm)
		s.jsonContent.SetValue(s.activePds.Records[rId])
		return true
	}

	return false
}