Chat Module | Read Feature

User Story

As a user, you should be able to read your group or individual chats using the chat ID. If there are any chat messages related to the chat ID, they will be displayed. Otherwise, it will show that there is no conversation and prompt you to start a conversation.

### DAO:

- [x] getChatsByUserId()

### Service:

- [x] readChat()

### Service Tests:

- [x] testReadChatSuccess()

## Flow

```mermaid
graph TD
A[Start]
B(User selects/clicks chat group)
C[(Check if chat group)]
D{Check if there are any messages}
E(Show Conversations)
F(Show No conversation)
G[END]
H(Invalid chat group details)
A --> B
B -->|User selects/clicks| C
C -->|Yes| D
C -->|No| H
D -->|Yes| E --> G
D -->|No| F

```