refactored config system with generic `Defaults` function, fixed database migration setup, and applied dry principles

1 files changed, 34 insertions, 5 deletions

diff --git a/database/database.go b/database/database.go
index d063cfc..d284c0f 100644
--- a/database/database.go
+++ b/database/database.go
@@ -3,6 +3,7 @@ package database
 import (
 	"fmt"
 	"imageboard/config"
+	"imageboard/models"
 	"log"
 
 	"gorm.io/driver/postgres"
@@ -16,27 +17,39 @@ var (
 )
 
 func init() {
-	dsn := fmt.Sprintf("host=%s user=%s password=%s dbname=%s port=%d sslmode=%s",
+	dsn := fmt.Sprintf("host=%s port=%d user=%s dbname=%s sslmode=%s",
 		config.Database.Host,
+		config.Database.Port,
 		config.Database.Username,
-		config.Database.Password,
 		config.Database.DatabaseName,
-		config.Database.Port,
 		config.Database.SSLMode,
 	)
 
+	if config.Database.Password != "" {
+		dsn += fmt.Sprintf(" password=%s", config.Database.Password)
+	}
+
 	logLevel := logger.Silent
 	if config.Server.IsDevMode {
 		logLevel = logger.Info
 	}
 
-	DB, err = gorm.Open(postgres.Open(dsn), &gorm.Config{
+	dialector := postgres.Open(dsn)
+
+	DB, err = gorm.Open(dialector, &gorm.Config{
 		Logger: logger.Default.LogMode(logLevel),
 	})
 	if err != nil {
 		log.Fatalf("failed to connect to database: %v", err)
 	}
 
+	if config.Server.IsDevMode && config.Database.WipeAndResetDatabase {
+		if err := wipeAndResetDatabase(); err != nil {
+			log.Fatalf("failed to wipe and reset database: %v", err)
+		}
+		log.Println("Database wiped and reset successfully")
+	}
+
 	if err := autoMigrate(); err != nil {
 		log.Fatalf("failed to auto migrate database: %v", err)
 	}
@@ -45,5 +58,21 @@ func init() {
 }
 
 func autoMigrate() error {
-	return DB.AutoMigrate()
+	return DB.AutoMigrate(
+		&models.User{},
+		&models.Image{},
+		&models.ImageSize{},
+		&models.Tag{},
+		&models.Comment{},
+	)
+}
+
+func wipeAndResetDatabase() error {
+	if err := DB.Exec("DROP SCHEMA public CASCADE").Error; err != nil {
+		return err
+	}
+	if err := DB.Exec("CREATE SCHEMA public").Error; err != nil {
+		return err
+	}
+	return nil
 }