Reorganize project structure and fix SQLite usage

cmd/iroon/main.go

@@ -0,0 +1,23 @@
+package iroon
+
+import (
+	"log"
+	"net/http"
+
+	"github.com/Bronku/iroon/internal/auth"
+	"github.com/Bronku/iroon/internal/logging"
+	"github.com/Bronku/iroon/internal/server"
+)
+
+func Run() {
+	h, err := server.New()
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer h.Close()
+
+	var handler http.Handler = h
+	handler = logging.Middleware(handler)
+	handler = auth.New().Middleware(handler)
+	log.Fatal(http.ListenAndServe(":8080", handler))
+}

internal/server/get.go

@@ -5,7 +5,7 @@ import (
 	"strconv"
 	"strings"
 
-	"github.com/Bronku/iroon/store"
+	"github.com/Bronku/iroon/internal/store"
 )
 
 func (h *Server) index(r *http.Request) (any, int, error) {

internal/server/post.go

@@ -7,7 +7,7 @@ import (
 	"strings"
 	"time"
 
-	"github.com/Bronku/iroon/store"
+	"github.com/Bronku/iroon/internal/store"
 )
 
 func (h *Server) postOrder(r *http.Request) (any, int, error) {

internal/server/server.go

@@ -4,7 +4,7 @@ import (
 	"html/template"
 	"net/http"
 
-	"github.com/Bronku/iroon/store"
+	"github.com/Bronku/iroon/internal/store"
 )
 
 type Server struct {

internal/store/schema.sql

@@ -22,3 +22,5 @@ create table ordered_cake (
     amount integer not null,
     primary key (customer_order, cake)
 );
+
+PRAGMA user_version = 1;

internal/store/store.go

@@ -4,7 +4,6 @@ import (
 	"database/sql"
 	_ "embed"
 	"errors"
-	"os"
 	"strconv"
 	"time"
 
@@ -21,11 +20,13 @@ type Store struct {
 func OpenStore(filename string) (*Store, error) {
 	var out Store
 	var err error
-	_, err = os.Stat(filename)
-	if errors.Is(err, os.ErrNotExist) {
-		defer out.loadSchema()
-	}
+
 	out.db, err = sql.Open("sqlite3", filename)
+	if err != nil {
+		return &out, err
+	}
+
+	err = out.loadSchema()
 	return &out, err
 }
 
@@ -35,10 +36,27 @@ func (s *Store) Close() {
 	}
 }
 
+func (s *Store) version() int {
+	out := -1
+	row, err := s.db.Query("PRAGMA user_version;")
+	if err != nil {
+		return out
+	}
+	defer row.Close()
+	row.Next()
+	_ = row.Scan(&out)
+	return out
+}
+
 func (s *Store) loadSchema() error {
 	if s.db == nil {
 		return errors.New("database doesn't exist")
 	}
+
+	if s.version() == 1 {
+		return nil
+	}
+
 	_, err := s.db.Exec(schema)
 	return err
 }
@@ -83,11 +101,13 @@ func (s *Store) SaveCake(newCake Cake) (int, error) {
 
 	row, err := s.db.Query(query, newCake.Name, newCake.Price)
 	if err != nil {
-		return -1, err
+		return 0, err
 	}
 	defer row.Close()
 
-	row.Next()
+	if !row.Next() {
+		return 0, errors.New("The database didn't respond with an id")
+	}
 	err = row.Scan(&newCake.ID)
 	return newCake.ID, err
 }
@@ -95,10 +115,10 @@ func (s *Store) SaveCake(newCake Cake) (int, error) {
 func (s *Store) GetOrder(id int) (Order, error) {
 	var out Order
 	row, err := s.db.Query("select id, name, surname, phone, location, order_date, delivery_date, status, paid from customer_order where id = ?;", id)
-	defer row.Close()
 	if err != nil {
 		return out, err
 	}
+	defer row.Close()
 
 	var order_date, delivery_date string
 	row.Next()
@@ -187,22 +207,25 @@ func (s *Store) SaveOrder(newOrder Order) (int, error) {
 	}
 	tx, err := s.db.Begin()
 	if err != nil {
-		return -1, nil
+		return 0, err
 	}
 
 	accepted := newOrder.Accepted.Format("2006-01-02 15:04")
 	date := newOrder.Date.Format("2006-01-02 15:04")
 	row, err := tx.Query(query, newOrder.Name, newOrder.Surname, newOrder.Phone, newOrder.Location, accepted, date, newOrder.Status, newOrder.Paid)
 	if err != nil {
-		tx.Rollback()
-		return -1, err
+		_ = tx.Rollback()
+		return 0, err
 	}
 	defer row.Close()
 
-	row.Next()
+	if !row.Next() {
+		_ = tx.Rollback()
+		return 0, errors.New("The database didn't respond with an id")
+	}
 	err = row.Scan(&newOrder.ID)
 	if err != nil {
-		tx.Rollback()
+		_ = tx.Rollback()
 		return newOrder.ID, err
 	}
 
@@ -210,7 +233,7 @@ func (s *Store) SaveOrder(newOrder Order) (int, error) {
 	query = "delete from ordered_cake where customer_order = ?;"
 	_, err = tx.Exec(query, newOrder.ID)
 	if err != nil {
-		tx.Rollback()
+		_ = tx.Rollback()
 		return newOrder.ID, err
 	}
 
@@ -219,7 +242,7 @@ func (s *Store) SaveOrder(newOrder Order) (int, error) {
 	for _, e := range newOrder.Cakes {
 		_, err := tx.Exec(query, newOrder.ID, e.ID, e.Amount)
 		if err != nil {
-			tx.Rollback()
+			_ = tx.Rollback()
 			return newOrder.ID, err
 		}
 	}

internal/store/store_test.go

@@ -29,7 +29,7 @@ func TestStore(t *testing.T) {
 	}
 
 	// create new cake
-	newCake := Cake{Name: "Chocolate Cake", ID: -1, Price: 2500, Amount: -1}
+	newCake := Cake{Name: "Chocolate Cake", Price: 2500}
 	newCake.ID, err = s.SaveCake(newCake)
 	if err != nil {
 		t.Fatalf("Failed to save new cake: %v", err)
@@ -39,7 +39,7 @@ func TestStore(t *testing.T) {
 	}
 
 	// create another cake
-	anotherCake := Cake{Name: "Another Cake", ID: -1, Price: 3000, Amount: -1}
+	anotherCake := Cake{Name: "Another Cake", Price: 3000}
 	anotherCake.ID, err = s.SaveCake(anotherCake)
 	if err != nil {
 		t.Fatalf("Failed to save new cake: %v", err)
@@ -112,7 +112,6 @@ func TestStore(t *testing.T) {
 	// create new order
 	now := time.Now()
 	newOrder := Order{
-		ID:       -1,
 		Name:     "John",
 		Surname:  "Doe",
 		Phone:    "123-456-7890",
@@ -133,7 +132,6 @@ func TestStore(t *testing.T) {
 
 	// create another order
 	anotherOrder := Order{
-		ID:       -1,
 		Name:     "Jane",
 		Surname:  "Doe",
 		Phone:    "123-456-7890",
@@ -198,8 +196,8 @@ func TestStore(t *testing.T) {
 		newOrder.Phone != orders[newOrderPos].Phone ||
 		newOrder.Status != orders[newOrderPos].Status ||
 		newOrder.Location != orders[newOrderPos].Location ||
-		newOrder.Accepted.Format("2006-01-02 15:04") != newOrder.Accepted.Format("2006-01-02 15:04") ||
-		newOrder.Date.Format("2006-01-02 15:04") != newOrder.Date.Format("2006-01-02 15:04") {
+		newOrder.Accepted.Format("2006-01-02 15:04") != orders[newOrderPos].Accepted.Format("2006-01-02 15:04") ||
+		newOrder.Date.Format("2006-01-02 15:04") != orders[newOrderPos].Date.Format("2006-01-02 15:04") {
 		t.Errorf("Want %v\nGot  %v", newOrder, orders[newOrderPos])
 	}
 	if !areCakeSlicesEqual(newOrder.Cakes, orders[newOrderPos].Cakes) {
@@ -214,8 +212,8 @@ func TestStore(t *testing.T) {
 		anotherOrder.Phone != orders[anotherOrderPos].Phone ||
 		anotherOrder.Status != orders[anotherOrderPos].Status ||
 		anotherOrder.Location != orders[anotherOrderPos].Location ||
-		anotherOrder.Accepted.Format("2006-01-02 15:04") != anotherOrder.Accepted.Format("2006-01-02 15:04") ||
-		anotherOrder.Date.Format("2006-01-02 15:04") != anotherOrder.Date.Format("2006-01-02 15:04") {
+		anotherOrder.Accepted.Format("2006-01-02 15:04") != orders[anotherOrderPos].Accepted.Format("2006-01-02 15:04") ||
+		anotherOrder.Date.Format("2006-01-02 15:04") != orders[anotherOrderPos].Date.Format("2006-01-02 15:04") {
 		t.Errorf("Want %v\nGot  %v", anotherOrder, orders[anotherOrderPos])
 	}
 
@@ -232,8 +230,8 @@ func TestStore(t *testing.T) {
 		newOrder.Phone != selectedOrder.Phone ||
 		newOrder.Status != selectedOrder.Status ||
 		newOrder.Location != selectedOrder.Location ||
-		newOrder.Accepted.Format("2006-01-02 15:04") != newOrder.Accepted.Format("2006-01-02 15:04") ||
-		newOrder.Date.Format("2006-01-02 15:04") != newOrder.Date.Format("2006-01-02 15:04") {
+		newOrder.Accepted.Format("2006-01-02 15:04") != selectedOrder.Accepted.Format("2006-01-02 15:04") ||
+		newOrder.Date.Format("2006-01-02 15:04") != selectedOrder.Date.Format("2006-01-02 15:04") {
 		t.Errorf("Want %v\nGot  %v", newOrder, selectedOrder)
 	}
 

main.go

@@ -1,23 +1,7 @@
 package main
 
-import (
-	"log"
-	"net/http"
-
-	"github.com/Bronku/iroon/auth"
-	"github.com/Bronku/iroon/logging"
-	"github.com/Bronku/iroon/server"
-)
+import "github.com/Bronku/iroon/cmd/iroon"
 
 func main() {
-	h, err := server.New()
-	if err != nil {
-		log.Fatal(err)
-	}
-	defer h.Close()
-
-	var handler http.Handler = h
-	handler = logging.Middleware(handler)
-	handler = auth.New().Middleware(handler)
-	log.Fatal(http.ListenAndServe(":8080", handler))
+	iroon.Run()
 }