first commit

2026-04-26 21:43:40 +03:00
commit f34e54c5a5
100 changed files with 27342 additions and 0 deletions
--- a/database/db.go
+++ b/database/db.go
@@ -0,0 +1,329 @@
+package database
+
+import (
+	//"fmt"
+	"log"
+	"strings"
+	"time"
+
+	"gobeyhan/config"
+	"gobeyhan/database/models"
+
+	"golang.org/x/crypto/bcrypt"
+	"gorm.io/driver/mysql"
+	"gorm.io/gorm"
+	"gorm.io/gorm/logger"
+)
+
+var DB *gorm.DB
+
+func ConnectDB() {
+	dsn := config.AppConfig.DBUrl
+	if dsn == "" {
+		log.Fatal("DB_URL is not set in .env")
+	}
+
+	// Configure GORM with optimized settings
+	db, err := gorm.Open(mysql.Open(dsn), &gorm.Config{
+		Logger:      logger.Default.LogMode(logger.Info), // Only log errors, suppress SLOW SQL warnings
+		PrepareStmt: true,                                // Prepare statements for better performance
+		NowFunc: func() time.Time {
+			return time.Now().UTC()
+		},
+	})
+	if err != nil {
+		log.Fatal("Failed to connect to database:", err)
+	}
+
+	log.Println("Connected to Database successfully")
+	DB = db
+
+	// MySQL doesn't require enabling uuid-ossp extension. noop for compatibility
+	onEnableUUIDForMySQL()
+}
+
+func onEnableUUIDForMySQL() {
+	// noop: Postgres-only extension; for MySQL UUID handling is usually done at application level
+	log.Println("UUID extension step skipped for MySQL (not required)")
+}
+
+func SeedAll() {
+	if DB == nil {
+		log.Println("DB not initialized: call ConnectDB() before SeedAll")
+		return
+	}
+
+	// Run AutoMigrate using the helper in migrate.go
+	if err := Migrate(DB); err != nil {
+		log.Printf("AutoMigrate failed: %v", err)
+		return
+	}
+
+	// Run schema/data migrations
+	migrateUserNameColumn()
+	migrateEmailVerifiedColumn()
+
+	// Seed initial data
+	seedRolesAndPermissions()
+	seedDefaultSettings()
+	SeedDefaultAdmin()
+
+	log.Println("Database migration and seeding complete")
+}
+
+func migrateEmailVerifiedColumn() {
+	// Check column existence via information_schema for MySQL
+	var count int64
+	DB.Raw(`
+		SELECT COUNT(*)
+		FROM information_schema.COLUMNS
+		WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'users' AND COLUMN_NAME = 'email_verified'
+	`).Scan(&count)
+
+	if count == 0 {
+		// Column doesn't exist, nothing to migrate
+		return
+	}
+
+	// Only set existing users (created before email verification feature) as verified
+	var usersToVerify int64
+	DB.Model(&models.User{}).Where("(email_verify_token IS NULL OR email_verify_token = '') AND email_verified IS NULL").Count(&usersToVerify)
+
+	if usersToVerify > 0 {
+		DB.Exec("UPDATE users SET email_verified = true WHERE (email_verify_token IS NULL OR email_verify_token = '') AND email_verified IS NULL")
+		log.Printf("Email verification migration: %d existing users marked as verified", usersToVerify)
+	}
+}
+
+func migrateUserNameColumn() {
+	// Check column existence via information_schema for MySQL
+	var count int64
+	DB.Raw(`
+		SELECT COUNT(*)
+		FROM information_schema.COLUMNS
+		WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'users' AND COLUMN_NAME = 'user_name'
+	`).Scan(&count)
+
+	if count == 0 {
+		// Column doesn't exist, add it
+		log.Println("Adding user_name column...")
+		DB.Exec("ALTER TABLE users ADD COLUMN user_name TEXT")
+
+		// Update existing users with default usernames
+		DB.Exec("UPDATE users SET user_name = CONCAT('user_', SUBSTRING(CAST(id AS CHAR), 1, 8)) WHERE user_name IS NULL")
+
+		// Add NOT NULL constraint
+		DB.Exec("ALTER TABLE users MODIFY COLUMN user_name TEXT NOT NULL")
+		log.Println("user_name column added successfully")
+		return
+	}
+
+	// Column exists, update null or empty values
+	log.Println("Updating users with null or empty usernames...")
+	DB.Exec("UPDATE users SET user_name = CONCAT('user_', SUBSTRING(CAST(id AS CHAR), 1, 8)) WHERE user_name IS NULL OR user_name = ''")
+
+	// Check if NOT NULL constraint exists using information_schema
+	var isNullable string
+	DB.Raw(`
+		SELECT IS_NULLABLE
+		FROM information_schema.COLUMNS
+		WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'users' AND COLUMN_NAME = 'user_name'
+	`).Scan(&isNullable)
+
+	if strings.ToUpper(isNullable) != "NO" {
+		log.Println("Adding NOT NULL constraint to user_name...")
+		DB.Exec("ALTER TABLE users MODIFY COLUMN user_name TEXT NOT NULL")
+	}
+}
+
+func seedRolesAndPermissions() {
+	// 1. Define Permissions
+	permissions := []models.Permission{
+		{Name: "user:read", Description: "Can read user data"},
+		{Name: "user:write", Description: "Can modify user data"},
+		{Name: "admin:access", Description: "Can access admin panel"},
+	}
+
+	for _, p := range permissions {
+		DB.FirstOrCreate(&models.Permission{}, models.Permission{Name: p.Name, Description: p.Description})
+	}
+
+	// 2. Define Roles
+	roles := []string{"admin", "user"}
+	for _, r := range roles {
+		DB.FirstOrCreate(&models.Role{}, models.Role{Name: r, Description: "Default " + r + " role"})
+	}
+
+	// 3. Assign Permissions to Admin Role
+	var adminRole models.Role
+	DB.Preload("Permissions").Where("name = ?", "admin").First(&adminRole)
+
+	// Fetch all permissions to assign to admin
+	var allPermissions []models.Permission
+	DB.Find(&allPermissions)
+
+	// Update association (replace current set)
+	DB.Model(&adminRole).Association("Permissions").Replace(allPermissions)
+
+	// 4. Assign Basic Permissions to User Role
+	var userRole models.Role
+	DB.Preload("Permissions").Where("name = ?", "user").First(&userRole)
+
+	var userPermissions []models.Permission
+	DB.Where("name IN ?", []string{"user:read"}).Find(&userPermissions)
+
+	DB.Model(&userRole).Association("Permissions").Replace(userPermissions)
+
+	log.Println("Roles and Permissions seeded")
+}
+
+func seedDefaultSettings() {
+	// Seed default CORS whitelist
+	var whitelistCount int64
+	DB.Model(&models.CorsWhitelist{}).Count(&whitelistCount)
+
+	if whitelistCount == 0 {
+		defaultWhitelist := []models.CorsWhitelist{
+			{
+				Origin:      "http://localhost:3000",
+				Description: "Default local frontend",
+				IsActive:    true,
+				CreatedBy:   "system",
+			},
+			{
+				Origin:      "http://localhost:8080",
+				Description: "Backend self",
+				IsActive:    true,
+				CreatedBy:   "system",
+			},
+		}
+
+		for _, w := range defaultWhitelist {
+			DB.Create(&w)
+		}
+		log.Println("Default CORS whitelist seeded")
+	}
+
+	// Seed default rate limit settings
+	var rateLimitCount int64
+	DB.Model(&models.RateLimitSetting{}).Count(&rateLimitCount)
+
+	if rateLimitCount == 0 {
+		defaultRateLimits := []models.RateLimitSetting{
+			{
+				Name:          "login",
+				Description:   "Login endpoint rate limit",
+				MaxRequests:   5,
+				WindowSeconds: 60, // 1 minute
+				IsActive:      true,
+			},
+			{
+				Name:          "register",
+				Description:   "Registration endpoint rate limit",
+				MaxRequests:   3,
+				WindowSeconds: 300, // 5 minutes
+				IsActive:      true,
+			},
+			{
+				Name:          "api",
+				Description:   "General API rate limit",
+				MaxRequests:   100,
+				WindowSeconds: 60, // 1 minute
+				IsActive:      true,
+			},
+		}
+
+		for _, r := range defaultRateLimits {
+			DB.Create(&r)
+		}
+		log.Println("Default rate limit settings seeded")
+	}
+}
+
+// SeedDefaultAdmin creates the default admin user if it doesn't exist
+func SeedDefaultAdmin() {
+	if DB == nil {
+		log.Println("DB not initialized: call ConnectDB() before seeding")
+		return
+	}
+
+	// Use a transaction to ensure atomic create + role assignment
+	tx := DB.Begin()
+	defer func() {
+		if r := recover(); r != nil {
+			tx.Rollback()
+			log.Printf("panic during SeedDefaultAdmin: %v", r)
+		}
+	}()
+
+	// Check if admin user already exists (including soft-deleted)
+	var adminUser models.User
+	err := tx.Unscoped().Where("email = ?", "admin@gauth.local").First(&adminUser).Error
+
+	if err != nil {
+		// Admin user doesn't exist, create one
+		// Hash default password: "Admin@123"
+		hashedPassword, err := bcrypt.GenerateFromPassword([]byte("Admin@123"), bcrypt.DefaultCost)
+		if err != nil {
+			log.Printf("Failed to hash admin password: %v", err)
+			tx.Rollback()
+			return
+		}
+
+		trueBool := true
+		adminUser = models.User{
+			Email:         "admin@gauth.local",
+			UserName:      "admin",
+			Password:      string(hashedPassword),
+			EmailVerified: &trueBool,
+		}
+
+		if err := tx.Create(&adminUser).Error; err != nil {
+			log.Printf("Failed to create admin user: %v", err)
+			tx.Rollback()
+			return
+		}
+
+		// Log created admin ID and type for debugging
+		log.Printf("Admin created - ID value: %v (type: %T)", adminUser.ID, adminUser.ID)
+
+		log.Println("✅ Default admin user created:")
+		log.Println("   Email: admin@gauth.local")
+		log.Println("   Password: Admin@123")
+		log.Println("   ⚠️  Please change this password after first login!")
+	} else {
+		// Admin user exists (possibly soft-deleted)
+		if adminUser.DeletedAt.Valid {
+			log.Println("Restoring deleted admin user...")
+			if err := tx.Model(&adminUser).Unscoped().Update("deleted_at", nil).Error; err != nil {
+				log.Printf("Failed to restore admin user: %v", err)
+				tx.Rollback()
+				return
+			}
+		}
+
+		// Log existing admin ID for debugging
+		log.Printf("Admin already exists - ID value: %v (type: %T)", adminUser.ID, adminUser.ID)
+	}
+
+	// Ensure admin role is assigned
+	var adminRole models.Role
+	if err := tx.Where("name = ?", "admin").First(&adminRole).Error; err != nil {
+		log.Printf("Admin role not found: %v", err)
+		tx.Rollback()
+		return
+	}
+
+	if err := tx.Model(&adminUser).Association("Roles").Append(&adminRole); err != nil {
+		log.Printf("Failed to assign admin role: %v", err)
+		tx.Rollback()
+		return
+	}
+
+	if err := tx.Commit().Error; err != nil {
+		log.Printf("Failed to commit admin seed transaction: %v", err)
+		return
+	}
+
+	log.Println("Varsayılan Yönetici Yaratıldı...")
+}