contract signature part is done

core/apps/contracts/serializers/contract.py

@@ -47,5 +47,5 @@ class ContractDetailSerializer(serializers.ModelSerializer):
     class Meta:
         model = Contract
         fields = [
-            'id', 'name', 'file', 'contract_number', 'contract_sides',
+            'id', 'name', 'file', 'status', 'contract_number', 'contract_sides',
         ]

core/apps/contracts/serializers/contract_side.py

@@ -2,8 +2,9 @@ from django.contrib.auth import get_user_model
 
 from rest_framework import serializers
 
-from core.apps.contracts.models.contract import ContractSide, Contract
+from core.apps.contracts.models.contract import ContractSide, Contract, ContractSignature
 from core.apps.contracts.enums.contract_side import ROLE
+from core.apps.contracts.serializers.contract_signature import ContractSignatureListSerializer
 
 User = get_user_model()
 
@@ -25,8 +26,14 @@ class ContractSideCreateSerializer(serializers.Serializer):
     
 
 class ContractSideListSerializer(serializers.ModelSerializer):
+    contract_signature = serializers.SerializerMethodField(method_name='get_contract_signature')
+
     class Meta:
         model = ContractSide
         fields = [
-            'id', 'full_name', 'user'
-        ]
+            'id', 'full_name', 'user', 'contract_signature'
+        ]
+
+    def get_contract_signature(self, obj):
+        contract_signature = obj.contract_signatures
+        return ContractSignatureListSerializer(contract_signature).data 

core/apps/contracts/serializers/contract_signature.py

@@ -0,0 +1,34 @@
+from django.utils import timezone
+
+from rest_framework import serializers
+
+from core.apps.contracts.models.contract import ContractSignature, ContractSignatureCode
+
+
+class ContractSignatureListSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = ContractSignature
+        fields = [
+            'id', 'status', 'signature_type', 'is_signature'
+        ]
+    
+
+class ContractSignatureSerializer(serializers.Serializer):
+    code = serializers.IntegerField()
+    signature_id = serializers.UUIDField()
+
+    def validate(self, data):
+        user = self.context.get('user')
+        signature = ContractSignature.objects.filter(id=data.get('signature_id')).first()
+        if not signature:
+            raise serializers.ValidationError({"detail": "contract signature not found"})
+        if signature.contract_side.user != user:
+            raise serializers.ValidationError({'detail': 'this is not your code'})
+        signature_code = ContractSignatureCode.objects.filter(signature=signature, code=data.get('code')).first()
+        if not signature_code:
+            raise serializers.ValidationError({'detail': 'invalid code'})
+        if signature_code.expiration_time < timezone.now():
+            raise serializers.ValidationError({"detail": 'code is expired'})
+        data['contract'] = signature.contract_side.contract
+        data['contract_signature'] = signature
+        return data