added endpoints for user profile

api/serializers.py

@@ -1,6 +1,10 @@
 from rest_framework import serializers
 from .models import Prediction, SavedPoint, SavedRateProfile, PreditctionTemplate
 from datetime import datetime
+from django.contrib.auth.password_validation import validate_password
+from django.core.validators import validate_email
+from django.core.exceptions import ValidationError as DjangoValidationError
+from django.contrib.auth import get_user_model
 from .validators import (
     validate_custom_curve, rate_clip,
     _rfc3339_to_timestamp, base64_to_curve
@@ -11,6 +15,7 @@ class PredictionSerializer(serializers.ModelSerializer):
         model = Prediction
         fields = ['id', 'created_at', 'updated_at', 'result']
 
+User = get_user_model()
 
 PROFILE_STANDARD = "standard_profile"
 PROFILE_FLOAT = "float_profile"
@@ -151,3 +156,30 @@ class PreditctionTemplateSerializer(serializers.ModelSerializer):
         model = PreditctionTemplate
         fields = ['id', 'name', 'template_data', 'is_default']
         read_only_fields = ['id']
+
+
+class UserSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = User
+        fields = ['username', 'email', 'first_name', 'last_name']
+        extra_kwargs = {
+            'username': {'read_only': True}
+        }
+
+    def validate_email(self, value):
+        try:
+            validate_email(value)
+        except DjangoValidationError:
+            raise serializers.ValidationError("Invalid email format")
+        return value
+
+class ChangePasswordSerializer(serializers.Serializer):
+    old_password = serializers.CharField(required=True)
+    new_password = serializers.CharField(required=True)
+
+    def validate_new_password(self, value):
+        validate_password(value)
+        return value
+
+class DeleteAccountSerializer(serializers.Serializer):
+    password = serializers.CharField(required=True)