fix stuff

constants/APIs.ts

@@ -1,5 +1,5 @@
 import * as FileSystem from 'expo-file-system';
-import type { User, RelationshipData } from '@/constants/Types';
+import type { User, RelationshipData, Message } from '@/constants/Types';
 
 export const getInitialDataByAppleId = async (appleId: string) => {
   try {
@@ -194,3 +194,52 @@ export const sendRelationshipRequest = async (userId: number, targetUserId: numb
     throw error;
   }
 };
+
+export const getInitialMessages = async (userId: number, limit: number = 20) => {
+  if (!userId || isNaN(userId)) return;
+  try {
+    const apiUrl = `${process.env.EXPO_PUBLIC_API_URL}/api/messages/getInitialMessages`;
+    const response = await fetch((apiUrl + `?userId=${userId}&limit=${limit}`), {
+      headers: {
+        'x-api-key': process.env.EXPO_PUBLIC_API_KEY ?? '',
+      },
+    });
+    if (!response.ok) {
+      throw new Error(
+        `Error getting initial messages: ${response.status} ${response.statusText}`
+      );
+    }
+    const messages = await response.json() as Message[];
+    return messages;
+  } catch (error: unknown) {
+    console.error('Error getting initial messages:', error);
+    throw error;
+  }
+};
+
+export const sendMessage = async (message: Message) => {
+  if (!message) return;
+  try {
+    const apiUrl = `${process.env.EXPO_PUBLIC_API_URL}/api/messages/send`;
+    const response = await fetch(apiUrl, {
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/json',
+        'x-api-key': process.env.EXPO_PUBLIC_API_KEY ?? '',
+      },
+      body: JSON.stringify({
+        message: message,
+      }),
+    });
+    if (!response.ok) {
+      throw new Error(
+        `Error sending message: ${response.status} ${response.statusText}`
+      );
+    }
+    const messageData = await response.json() as Message;
+    return messageData;
+  } catch (error: unknown) {
+    console.error('Error sending message:', error);
+    throw error;
+  }
+};