From cbaa5744049c98cf479d65edba2a70425d185a43 Mon Sep 17 00:00:00 2001
From: Masashi Tsuru <0221masa@gmail.com>
Date: Fri, 5 Aug 2022 15:35:38 +0900
Subject: [PATCH] Fix how to send message to chatwork

---
 internal/chatwork/send_message.go      |  9 ++++++---
 internal/chatwork/send_message_test.go | 11 +++++++++++
 2 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/internal/chatwork/send_message.go b/internal/chatwork/send_message.go
index 08a2a8f..a658057 100644
--- a/internal/chatwork/send_message.go
+++ b/internal/chatwork/send_message.go
@@ -7,6 +7,7 @@ import (
 	"log"
 	"net/http"
 	"net/url"
+	"strings"
 )
 
 type chatworkClient struct {
@@ -38,15 +39,17 @@ func (c *chatworkClient) outputVerboseMessage(message string) {
 }
 
 func (c *chatworkClient) SendMessage(message string, toRoomId string) (string, error) {
-	url := fmt.Sprintf("%v/rooms/%v/messages?body=%v", c.generateEndpointUrl(), toRoomId, url.QueryEscape(message))
+	endpoint := fmt.Sprintf("%v/rooms/%v/messages", c.generateEndpointUrl(), toRoomId)
+	payload := strings.NewReader(fmt.Sprintf("self_unread=0&body=%v", url.QueryEscape(message)))
 
-	req, err := http.NewRequest("POST", url, nil)
-	c.outputVerboseMessage(fmt.Sprintf("Create NewRequest. URL: %v err: %v", url, err))
+	req, err := http.NewRequest("POST", endpoint, payload)
+	c.outputVerboseMessage(fmt.Sprintf("Create NewRequest. URL: %v err: %v", endpoint, err))
 	if err != nil {
 		return "", fmt.Errorf("Failed to create request: %s", err)
 	}
 
 	req.Header.Add("Accept", "application/json")
+	req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
 	req.Header.Add("X-ChatWorkToken", c.apiToken)
 
 	res, err := http.DefaultClient.Do(req)
diff --git a/internal/chatwork/send_message_test.go b/internal/chatwork/send_message_test.go
index e448ffd..e94173f 100644
--- a/internal/chatwork/send_message_test.go
+++ b/internal/chatwork/send_message_test.go
@@ -14,6 +14,7 @@ func TestSendMessage(t *testing.T) {
 	wantApiToken := "qwert12345"
 	wantPath := "/v2/rooms/12345/messages"
 	wantMessageId := "0987654321"
+	wantContentType := "application/x-www-form-urlencoded"
 
 	h := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		requestedMethod := r.Method
@@ -30,6 +31,16 @@ func TestSendMessage(t *testing.T) {
 			t.Errorf("want %v, got %v", wantApiToken, gotApiToken)
 		}
 
+		gotContentType := r.Header.Get("Content-Type")
+		if gotContentType != wantContentType {
+			t.Errorf("want %v, got %v", wantContentType, gotContentType)
+		}
+
+		gotMessage := r.PostFormValue("body")
+		if gotMessage != wantMessage {
+			t.Errorf("want %v, got %v", wantMessage, gotMessage)
+		}
+
 		if err := r.ParseForm(); err != nil {
 			t.Errorf("ParseForm() err: %v", err)
 			return