feat: Add delete, drop, insert, truncate, update

schema/check.go

@@ -1,9 +1,51 @@
 package schema
 
+import (
+	"fmt"
+	"slices"
+)
+
 var (
 	requiredAttributes = [2]string{"name", "type"}
+	onlySupportedTypes = []string{"string", "int", "float", "bool", "date", "time", "datetime", "uuid", "json", "hash"}
 )
 
-func (t *Table) Validate() error {
+func ValidateField(field *Field) error {
+	if err := ValidateHashAlgorithm(field); err != nil {
+		return err
+	}
+	return ValidateFieldType(field)
+}
+
+func ValidateFieldType(field *Field) error {
+	if !slices.Contains(onlySupportedTypes, field.Type) {
+		return fmt.Errorf("unsupported type: %s", field.Type)
+	}
+	return nil
+}
+
+func ValidateHashAlgorithm(field *Field) error {
+	if field.Type != "hash" {
+		return nil
+	}
+	if field.Algorithm == nil {
+		return fmt.Errorf("algorithm is required for hash field")
+	}
+	var hashAlgorithms = []string{"argon2", "bcrypt", "md5", "sha256", "sha512"}
+	for _, algorithm := range hashAlgorithms {
+		if *field.Algorithm == algorithm {
+			return nil
+		}
+	}
+	return fmt.Errorf("unsupported hash algorithm: %s", *field.Algorithm)
+}
+
+func (t *Table) Validate() error {
+	for _, field := range t.Schema {
+		err := ValidateField(&field)
+		if err != nil {
+			return err
+		}
+	}
 	return nil
 }