cleanup app, config and root

internal/app/app.go

@@ -0,0 +1,76 @@
+package app
+
+import (
+	"context"
+	"database/sql"
+	"maps"
+	"sync"
+	"time"
+
+	"github.com/kujtimiihoxha/termai/internal/db"
+	"github.com/kujtimiihoxha/termai/internal/history"
+	"github.com/kujtimiihoxha/termai/internal/logging"
+	"github.com/kujtimiihoxha/termai/internal/lsp"
+	"github.com/kujtimiihoxha/termai/internal/message"
+	"github.com/kujtimiihoxha/termai/internal/permission"
+	"github.com/kujtimiihoxha/termai/internal/session"
+)
+
+type App struct {
+	Sessions    session.Service
+	Messages    message.Service
+	Files       history.Service
+	Permissions permission.Service
+
+	LSPClients map[string]*lsp.Client
+
+	clientsMutex sync.RWMutex
+
+	watcherCancelFuncs []context.CancelFunc
+	cancelFuncsMutex   sync.Mutex
+	watcherWG          sync.WaitGroup
+}
+
+func New(ctx context.Context, conn *sql.DB) *App {
+	q := db.New(conn)
+	sessions := session.NewService(q)
+	messages := message.NewService(q)
+	files := history.NewService(q)
+
+	app := &App{
+		Sessions:    sessions,
+		Messages:    messages,
+		Files:       files,
+		Permissions: permission.NewPermissionService(),
+		LSPClients:  make(map[string]*lsp.Client),
+	}
+
+	app.initLSPClients(ctx)
+
+	return app
+}
+
+// Shutdown performs a clean shutdown of the application
+func (app *App) Shutdown() {
+	// Cancel all watcher goroutines
+	app.cancelFuncsMutex.Lock()
+	for _, cancel := range app.watcherCancelFuncs {
+		cancel()
+	}
+	app.cancelFuncsMutex.Unlock()
+	app.watcherWG.Wait()
+
+	// Perform additional cleanup for LSP clients
+	app.clientsMutex.RLock()
+	clients := make(map[string]*lsp.Client, len(app.LSPClients))
+	maps.Copy(clients, app.LSPClients)
+	app.clientsMutex.RUnlock()
+
+	for name, client := range clients {
+		shutdownCtx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+		if err := client.Shutdown(shutdownCtx); err != nil {
+			logging.Error("Failed to shutdown LSP client", "name", name, "error", err)
+		}
+		cancel()
+	}
+}