[CAPPL-31] feat(values): adds support for time.Time as value (#787)

* feat(values): adds support for time.Time as value

* chore(deps): updates .tool-versions

* refactor(values): uses primitive type in protos

.tool-versions

@@ -1,3 +1,5 @@
-golang 1.21.4
+golang 1.22.7
+protoc 25.1
+protoc-gen-go-grpc 1.3.0
 golangci-lint 1.55.2
 mockery 2.43.2

pkg/values/pb/values.go

@@ -1,7 +1,10 @@
 package pb
 
 import (
+	"time"
+
 	"github.com/shopspring/decimal"
+	"google.golang.org/protobuf/types/known/timestamppb"
 )
 
 func NewBoolValue(b bool) *Value {
@@ -80,3 +83,11 @@ func NewBigIntValue(sign int, bib []byte) *Value {
 		},
 	}
 }
+
+func NewTime(t time.Time) *Value {
+	return &Value{
+		Value: &Value_TimeValue{
+			TimeValue: timestamppb.New(t),
+		},
+	}
+}

pkg/values/pb/values.proto

@@ -1,5 +1,7 @@
 syntax = "proto3";
 
+import "google/protobuf/timestamp.proto";
+
 option go_package = "github.com/smartcontractkit/chainlink-common/pkg/values/pb";
 
 package values;
@@ -15,21 +17,18 @@ message Value {
     Decimal decimal_value = 6;
     int64 int64_value = 7;
     BigInt bigint_value = 9;
+    google.protobuf.Timestamp time_value = 10;
   }
 }
 
 message BigInt {
-     bytes abs_val = 1;
-     int64 sign = 2;
+  bytes abs_val = 1;
+  int64 sign = 2;
 }
 
-message Map {
-  map<string, Value> fields = 1;
-}
+message Map { map<string, Value> fields = 1; }
 
-message List {
-  repeated Value fields = 2;
-}
+message List { repeated Value fields = 2; }
 
 message Decimal {
   BigInt coefficient = 1;

pkg/values/time.go

@@ -0,0 +1,41 @@
+package values
+
+import (
+	"errors"
+	"time"
+
+	"github.com/smartcontractkit/chainlink-common/pkg/values/pb"
+)
+
+type Time struct {
+	Underlying time.Time
+}
+
+func NewTime(t time.Time) *Time {
+	return &Time{Underlying: t}
+}
+
+func (t *Time) UnwrapTo(to any) error {
+	if t == nil {
+		return errors.New("could not unwrap nil values.Time")
+	}
+
+	return unwrapTo(t.Underlying, to)
+}
+
+func (t *Time) Unwrap() (any, error) {
+	tt := new(time.Time)
+	return *tt, t.UnwrapTo(tt)
+}
+
+func (t *Time) copy() Value {
+	if t == nil {
+		return nil
+	}
+
+	return NewTime(t.Underlying)
+}
+
+func (t *Time) proto() *pb.Value {
+	return pb.NewTime(t.Underlying)
+}