Adjust legacy WA channel handler to use templating components

Author: norkans7

Diff for: handlers/whatsapp_legacy/handler.go

@@ -719,10 +719,10 @@ func buildPayloads(msg courier.MsgOut, h *handler, clog *courier.ChannelLog) ([]
 			payload.Template.Language.Policy = "deterministic"
 			payload.Template.Language.Code = langCode
 
-			for k, v := range templating.Params {
-				if k == "body" {
+			for _, comp := range templating.Components {
+				if comp.Type == "body" {
 					component := &Component{Type: "body"}
-					for _, p := range v {
+					for _, p := range comp.Params {
 						component.Parameters = append(component.Parameters, Param{Type: p.Type, Text: p.Value})
 					}
 					payload.Template.Components = append(payload.Template.Components, *component)
@@ -731,14 +731,6 @@ func buildPayloads(msg courier.MsgOut, h *handler, clog *courier.ChannelLog) ([]
 
 			}
 
-			if len(templating.Params) == 0 && len(templating.Variables) != 0 {
-				component := &Component{Type: "body"}
-				for _, v := range templating.Variables {
-					component.Parameters = append(component.Parameters, Param{Type: "text", Text: v})
-				}
-				payload.Template.Components = append(payload.Template.Components, *component)
-			}
-
 			payloads = append(payloads, payload)
 
 		} else {
@@ -1116,12 +1108,15 @@ type MsgTemplating struct {
 		Name string `json:"name" validate:"required"`
 		UUID string `json:"uuid" validate:"required"`
 	} `json:"template" validate:"required,dive"`
-	Namespace string   `json:"namespace"`
-	Variables []string `json:"variables"`
-	Params    map[string][]struct {
-		Type  string `json:"type"`
-		Value string `json:"value"`
-	} `json:"params"`
+	Namespace  string `json:"namespace"`
+	Components []struct {
+		Type   string `json:"type"`
+		Name   string `json:"name"`
+		Params []struct {
+			Type  string `json:"type"`
+			Value string `json:"value"`
+		} `json:"params"`
+	} `json:"components"`
 }
 
 func getSupportedLanguage(lc i18n.Locale) string {

Diff for: handlers/whatsapp_legacy/handler_test.go

@@ -766,7 +766,7 @@ var defaultSendTestCases = []OutgoingTestCase{
 		MsgText:     "templated message",
 		MsgURN:      "whatsapp:250788123123",
 		MsgLocale:   "eng",
-		MsgMetadata: json.RawMessage(`{ "templating": { "template": { "name": "revive_issue", "uuid": "171f8a4d-f725-46d7-85a6-11aceff0bfe3" }, "params": {"body": [{"type":"text", "value":"Chef"}, {"type": "text" , "value": "tomorrow"}]}}}`),
+		MsgMetadata: json.RawMessage(`{ "templating": { "template": { "name": "revive_issue", "uuid": "171f8a4d-f725-46d7-85a6-11aceff0bfe3" }, "components": [{"type":"body", "params": [{"type":"text", "value":"Chef"}, {"type": "text" , "value": "tomorrow"}]}]}}`),
 		MockResponses: map[string][]*httpx.MockResponse{
 			"*/v1/messages": {
 				httpx.NewMockResponse(200, nil, []byte(`{ "messages": [{"id": "157b5e14568e8"}] }`)),
@@ -784,7 +784,7 @@ var defaultSendTestCases = []OutgoingTestCase{
 		MsgText:     "templated message",
 		MsgURN:      "whatsapp:250788123123",
 		MsgLocale:   "eng",
-		MsgMetadata: json.RawMessage(`{ "templating": { "template": { "name": "revive_issue", "uuid": "171f8a4d-f725-46d7-85a6-11aceff0bfe3" }, "params": {}}}`),
+		MsgMetadata: json.RawMessage(`{ "templating": { "template": { "name": "revive_issue", "uuid": "171f8a4d-f725-46d7-85a6-11aceff0bfe3" }, "components": []}}`),
 		MockResponses: map[string][]*httpx.MockResponse{
 			"*/v1/messages": {
 				httpx.NewMockResponse(200, nil, []byte(`{ "messages": [{"id": "157b5e14568e8"}] }`)),
@@ -802,7 +802,7 @@ var defaultSendTestCases = []OutgoingTestCase{
 		MsgText:     "templated message",
 		MsgURN:      "whatsapp:250788123123",
 		MsgLocale:   "eng-US",
-		MsgMetadata: json.RawMessage(`{ "templating": { "template": { "name": "revive_issue", "uuid": "171f8a4d-f725-46d7-85a6-11aceff0bfe3" }, "params": {"body": [{"type":"text", "value":"Chef"}, {"type": "text" , "value": "tomorrow"}]}}}`),
+		MsgMetadata: json.RawMessage(`{ "templating": { "template": { "name": "revive_issue", "uuid": "171f8a4d-f725-46d7-85a6-11aceff0bfe3" }, "components": [{"type":"body", "params": [{"type":"text", "value":"Chef"}, {"type": "text" , "value": "tomorrow"}]}]}}`),
 		MockResponses: map[string][]*httpx.MockResponse{
 			"*/v1/messages": {
 				httpx.NewMockResponse(200, nil, []byte(`{ "messages": [{"id": "157b5e14568e8"}] }`)),
@@ -820,7 +820,7 @@ var defaultSendTestCases = []OutgoingTestCase{
 		MsgText:     "templated message",
 		MsgURN:      "whatsapp:250788123123",
 		MsgLocale:   "eng-US",
-		MsgMetadata: json.RawMessage(`{ "templating": { "template": { "name": "revive_issue", "uuid": "171f8a4d-f725-46d7-85a6-11aceff0bfe3" }, "namespace": "wa_template_namespace", "params": {"body": [{"type":"text", "value":"Chef"}, {"type": "text" , "value": "tomorrow"}]}}}`),
+		MsgMetadata: json.RawMessage(`{ "templating": { "template": { "name": "revive_issue", "uuid": "171f8a4d-f725-46d7-85a6-11aceff0bfe3" }, "namespace": "wa_template_namespace", "components": [{"type":"body", "params": [{"type":"text", "value":"Chef"}, {"type": "text" , "value": "tomorrow"}]}]}}`),
 		MockResponses: map[string][]*httpx.MockResponse{
 			"*/v1/messages": {
 				httpx.NewMockResponse(200, nil, []byte(`{ "messages": [{"id": "157b5e14568e8"}] }`)),
@@ -838,7 +838,7 @@ var defaultSendTestCases = []OutgoingTestCase{
 		MsgText:     "templated message",
 		MsgURN:      "whatsapp:250788123123",
 		MsgLocale:   "bnt",
-		MsgMetadata: json.RawMessage(`{ "templating": { "template": { "name": "revive_issue", "uuid": "171f8a4d-f725-46d7-85a6-11aceff0bfe3" }, "params": {"body": [{"type":"text", "value":"Chef"}, {"type": "text" , "value": "tomorrow"}]}}}`),
+		MsgMetadata: json.RawMessage(`{ "templating": { "template": { "name": "revive_issue", "uuid": "171f8a4d-f725-46d7-85a6-11aceff0bfe3" }, "components": [{"type":"body", "params": [{"type":"text", "value":"Chef"}, {"type": "text" , "value": "tomorrow"}]}]}}`),
 		MockResponses: map[string][]*httpx.MockResponse{
 			"*/v1/messages": {
 				httpx.NewMockResponse(200, nil, []byte(`{ "messages": [{"id": "157b5e14568e8"}] }`)),