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databases.go
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databases.go
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package component
import (
"context"
"regexp"
"sync"
"github.com/gdamore/tcell/v2"
"github.com/kopecmaciej/mongui/manager"
"github.com/kopecmaciej/mongui/mongo"
"github.com/kopecmaciej/tview"
"github.com/rs/zerolog/log"
)
const (
DatabasesComponent manager.Component = "Databases"
FilterBarComponent manager.Component = "FilterBar"
)
// Databases is flex container for DatabaseTree and InputBar
type Databases struct {
*Component
*tview.Flex
dbTree *DatabaseTree
filterBar *InputBar
mutex sync.Mutex
dbsWithColls []mongo.DBsWithCollections
}
func NewDatabases() *Databases {
s := &Databases{
Component: NewComponent(DatabasesComponent),
Flex: tview.NewFlex(),
dbTree: NewDatabaseTree(),
filterBar: NewInputBar(string(FilterBarComponent)),
mutex: sync.Mutex{},
}
s.SetAfterInitFunc(s.init)
return s
}
func (s *Databases) init() error {
ctx := context.Background()
s.setStyle()
s.setKeybindings()
if err := s.dbTree.Init(s.app); err != nil {
return err
}
if err := s.render(); err != nil {
return err
}
if err := s.renderWithFilter(ctx, ""); err != nil {
return err
}
if err := s.filterBar.Init(s.app); err != nil {
return err
}
s.filterBarListener(ctx)
return nil
}
func (s *Databases) setStyle() {
s.Flex.SetDirection(tview.FlexRow)
}
func (s *Databases) setKeybindings() {
keys := s.app.Keys
s.Flex.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
switch {
case keys.Contains(keys.Root.Databases.FilterBar, event.Name()):
s.filterBar.Enable()
s.render()
return nil
}
return event
})
}
func (s *Databases) render() error {
s.Flex.Clear()
var primitive tview.Primitive
primitive = s.dbTree
if s.filterBar.IsEnabled() {
s.Flex.AddItem(s.filterBar, 3, 0, false)
primitive = s.filterBar
}
defer s.app.SetFocus(primitive)
s.Flex.AddItem(s.dbTree, 0, 1, true)
return nil
}
func (s *Databases) filterBarListener(ctx context.Context) {
accceptFunc := func(text string) {
s.filter(ctx, text)
}
rejectFunc := func() {
s.render()
}
s.filterBar.DoneFuncHandler(accceptFunc, rejectFunc)
}
func (s *Databases) filter(ctx context.Context, text string) {
defer s.render()
dbsWitColls := s.dbsWithColls
expand := false
filtered := []mongo.DBsWithCollections{}
if text == "" {
return
}
for _, db := range dbsWitColls {
re := regexp.MustCompile(`(?i)` + text)
if re.MatchString(db.DB) {
contain := false
for _, f := range filtered {
if f.DB == db.DB {
contain = true
break
}
}
if !contain {
filtered = append(filtered, db)
}
}
for _, coll := range db.Collections {
if re.MatchString(coll) {
contain := false
for _, f := range filtered {
if f.DB == db.DB {
f.Collections = append(f.Collections, coll)
contain = true
break
}
}
if !contain {
expand = true
filtered = append(filtered, mongo.DBsWithCollections{
DB: db.DB,
Collections: []string{coll},
})
}
}
}
}
s.dbTree.Render(ctx, filtered, expand)
log.Debug().Msgf("Filtered: %v", filtered)
}
func (s *Databases) renderWithFilter(ctx context.Context, filter string) error {
if err := s.fetchDbsWithCollections(ctx, filter); err != nil {
return err
}
s.dbTree.Render(ctx, s.dbsWithColls, false)
return nil
}
func (s *Databases) fetchDbsWithCollections(ctx context.Context, filter string) error {
dbsWitColls, err := s.dao.ListDbsWithCollections(ctx, filter)
if err != nil {
return err
}
s.dbsWithColls = dbsWitColls
return nil
}