init go project

internal/app/app.go

@@ -0,0 +1,38 @@
+package app
+
+import (
+	"fmt"
+
+	"git.juancwu.dev/juancwu/budgething/internal/config"
+	"git.juancwu.dev/juancwu/budgething/internal/db"
+	"github.com/jmoiron/sqlx"
+)
+
+type App struct {
+	Cfg *config.Config
+	DB  *sqlx.DB
+}
+
+func New(cfg *config.Config) (*App, error) {
+	database, err := db.Init(cfg.DBDriver, cfg.DBConnection)
+	if err != nil {
+		return nil, fmt.Errorf("failed to initialize database: %w", err)
+	}
+
+	err = db.RunMigrations(database.DB, cfg.DBDriver)
+	if err != nil {
+		return nil, fmt.Errorf("failed to run migrations: %w", err)
+	}
+
+	return &App{
+		Cfg: cfg,
+		DB:  database,
+	}, nil
+}
+
+func (a *App) Close() error {
+	if a.DB != nil {
+		return a.DB.Close()
+	}
+	return nil
+}