add HTTPResponse

pkg/drivers/response.go

@@ -0,0 +1,103 @@
+package drivers
+
+import (
+	"context"
+	"encoding/json"
+	"strings"
+
+	"github.com/MontFerret/ferret/pkg/runtime/core"
+	"github.com/MontFerret/ferret/pkg/runtime/values"
+	"github.com/MontFerret/ferret/pkg/runtime/values/types"
+)
+
+// HTTPResponse HTTP response object.
+type HTTPResponse struct {
+	StatusCode int
+	Status     string
+	Headers    HTTPHeaders
+}
+
+func (resp *HTTPResponse) Type() core.Type {
+	return HTTPResponseType
+}
+
+func (resp *HTTPResponse) String() string {
+	return resp.Status
+}
+
+func (resp *HTTPResponse) Compare(other core.Value) int64 {
+	if other.Type() != HTTPResponseType {
+		return Compare(HTTPResponseType, other.Type())
+	}
+
+	otherObj := values.Parse(other)
+	respObj := values.Parse(resp)
+
+	// HTTPHeaders has it's own Compare
+	respObj.(*values.Object).Set(
+		values.NewString("Headers"),
+		resp.Headers,
+	)
+	otherObj.(*values.Object).Set(
+		values.NewString("Headers"),
+		other.(*HTTPResponse).Headers,
+	)
+
+	return respObj.Compare(otherObj)
+}
+
+func (resp *HTTPResponse) Unwrap() interface{} {
+	return resp
+}
+
+func (resp *HTTPResponse) Copy() core.Value {
+	return *(&resp)
+}
+
+func (resp *HTTPResponse) Hash() uint64 {
+	return values.Parse(resp).Hash()
+}
+
+// responseMarshal is a structure that repeats HTTPResponse. It allows
+// easily Marshal the HTTPResponse object.
+type responseMarshal struct {
+	StatusCode int         `json:"status_code"`
+	Status     string      `json:"status"`
+	Headers    HTTPHeaders `json:"headers"`
+}
+
+func (resp *HTTPResponse) MarshalJSON() ([]byte, error) {
+	if resp == nil {
+		return json.Marshal(values.None)
+	}
+
+	return json.Marshal(responseMarshal(*resp))
+}
+
+func (resp *HTTPResponse) GetIn(ctx context.Context, path []core.Value) (core.Value, error) {
+	if len(path) == 0 {
+		return resp, nil
+	}
+
+	if typ := path[0].Type(); typ != types.String {
+		return values.None, core.TypeError(typ, types.String)
+	}
+
+	field := path[0].(values.String).String()
+	field = strings.ToLower(field)
+
+	switch field {
+	case "status":
+		return values.NewString(resp.Status), nil
+	case "status_code", "statusCode":
+		return values.NewInt(resp.StatusCode), nil
+	case "headers":
+		if len(path) == 1 {
+			return resp.Headers, nil
+		}
+
+		return resp.Headers.GetIn(ctx, path[1:])
+	}
+
+	return values.None, nil
+}