From bf901a7aa385f7928078a514c7f2c2813021282c Mon Sep 17 00:00:00 2001
From: ycc <yves.cc@laposte.net>
Date: Sun, 18 Dec 2022 21:52:03 +0100
Subject: [PATCH] sendfile simple small files usermessage implementation

---
 client/config.go |  2 +-
 message.go       | 39 ++++++++++++++++++++++++++++++++++++++-
 2 files changed, 39 insertions(+), 2 deletions(-)

diff --git a/client/config.go b/client/config.go
index c8916b1..15924aa 100644
--- a/client/config.go
+++ b/client/config.go
@@ -14,7 +14,7 @@ type Config struct {
 	StoragePath        string `json:"storage_path,omitempty"`
 	MaxIdsPerUser      int    `json:"max_ids_per_user,omitempty"`
 	MsgDbRollingPeriod int    `json:"msg_db_rolling_period,omitempty"`
-	Chunksize          int    `json:"chunksize,omitempty"`
+	Chunksize          int64  `json:"chunksize,omitempty"`
 	ServerPollInterval int    `json:"server_poll_interval,omitempty"`
 	// GUI
 	LastOpenChat                string `json:"last_open_chat,omitempty"`
diff --git a/message.go b/message.go
index 69cd2a6..ea227af 100644
--- a/message.go
+++ b/message.go
@@ -1,5 +1,42 @@
 package meowlib
 
-func (*UserMessage) addFile(filename string) {
+import (
+	"errors"
+	"os"
 
+	"github.com/google/uuid"
+)
+
+func (msg *UserMessage) AddFile(filename string, maxMessageSize int64) error {
+	fi, err := os.Stat(filename)
+	if err != nil {
+		return err
+	}
+	if fi.Size() > maxMessageSize {
+		return errors.New("Cannot add file, file bigger than messge size")
+	}
+	var totalsize int64
+	totalsize = 0
+	for _, f := range msg.Files {
+		totalsize += int64(f.Size)
+	}
+	totalsize += fi.Size()
+	if totalsize > maxMessageSize {
+		return errors.New("Cannot add file, too many files, max message size exceeded")
+	}
+	data, err := os.ReadFile(filename)
+	if err != nil {
+		return err
+	}
+
+	var file File
+	file.Filename = filename
+	file.Size = uint64(fi.Size())
+	file.Data = data
+	msg.Files = append(msg.Files, &file)
+
+	msg.Status = &UserMessage_ConversationStatus{}
+	msg.Status.LocalUuid = uuid.New().String()
+
+	return nil
 }