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// Create a one-to-one message
let message = chat.createTextMessage({
  to: 'user1',
  conversationType: TencentCloudChat.TYPES.CONV_C2C,
  payload: {
    text: 'Hello world!'
  },
  // To use it, purchase the Premium edition and set `needReadReceipt` to `true` when creating a message.
  needReadReceipt: true
});
// 2. Send the message.
let promise = chat.sendMessage(message);
promise.then(function(imResponse) {
  // Message sent successfully
  console.log(imResponse);
}).catch(function(imError) {
  // Failed to send the message
  console.warn('sendMessage error:', imError);
});

// Create a group message
let message = chat.createTextMessage({
  to: 'test',
  conversationType: TencentCloudChat.TYPES.CONV_GROUP,
  payload: {
    text: 'Hello world!'
  },
  // To use it, purchase the Premium edition and set `needReadReceipt` to `true` when creating a message.
  needReadReceipt: true
});
// Send the message
let promise = chat.sendMessage(message);
promise.then(function(imResponse) {
  // Message sent successfully
  console.log(imResponse);
}).catch(function(imError) {
  // Failed to send the message
  console.warn('sendMessage error:', imError);
});

chat.sendMessageReadReceipt(messageList);

// Pull the group message list
let messageList = null;
chat.getMessageList({conversationID: 'GROUPtest'}).then(function(imResponse) {
  messageList = imResponse.data.messageList; // Message list
  chat.sendMessageReadReceipt(messageList).then(function() {
    // Read receipt for the group message sent successfully
  }).catch(function(imError) {
    // Failed to send a read receipt for the group message
  });
});

// Pull the one-to-one message list
let messageList = null;
chat.getMessageList({conversationID: 'C2Ctest'}).then(function(imResponse) {
  messageList = imResponse.data.messageList; // Message list
  chat.sendMessageReadReceipt(messageList).then(function() {
    // Read receipt for the one-to-one message sent successfully
  }).catch(function(imError) {
    // Failed to send a read receipt for the one-to-one message
  });
});

let onMessageReadReceiptReceived = function(event) {
  // event.data - An array that stores message read receipt information
  const readReceiptInfoList = event.data;
  readReceiptInfoList.forEach((item) => {
    const { groupID, userID, messageID, readCount, unreadCount, isPeerRead, timestamp } = item;
    // messageID - Message ID
    // userID - one-to-one message receiver
    // isPeerRead - Whether the one-to-one message is read by the receiver
    // timestamp - one-to-one message peer send read receipt time.
    // groupID - Group ID
    // readCount - Number of members who have read the group message
    // unreadCount - Number of members who have not read the group message
    const message = chat.findMessage(messageID);
    if (message) {
     if (message.conversationType === TencentCloudChat.TYPES.CONV_C2C) {
       if (message.isPeerRead === true) {
         // Read by the receiver
       }
     } else if (message.conversationType === TencentCloudChat.TYPES.CONV_GROUP) {
      if (message.readReceiptInfo.unreadCount === 0) {
        // Read by all
      } else {
        // message.readReceiptInfo.readCount - Latest read count of the message
        // To query which group members have read the message
        // call the [getGroupMessageReadMemberList] API.
      }
     }
    }
  });
}
chat.on(TencentCloudChat.EVENT.MESSAGE_READ_RECEIPT_RECEIVED, onMessageReadReceiptReceived);

chat.getMessageReadReceiptList(messageList);

// Pull the group message list
let messageList = null;
chat.getMessageList({conversationID: 'GROUPtest'}).then(function(imResponse) {
  messageList = imResponse.data.messageList; // Message list
  chat.getMessageReadReceiptList(messageList).then(function(imResponse) {
    messageList = imResponse.data.messageList; // Message list
    // `getMessageReadReceiptList` is called successfully,
    // `Message.readReceiptInfo` will contain the message read receipt information.
    // Message.readReceiptInfo.readCount - Read count of a message.
    // To query which group members have read the message, call the [getGroupMessageReadMemberList] API.
    // Message.readReceiptInfo.unreadCount - Unread count of a message.
    // `0` indicates that all members have read the message.
  }).catch(function(imError) {
    // Failed to pull the read receipt list
  });
});

// Pull the one-to-one message list
let messageList = null;
chat.getMessageList({conversationID: 'C2Ctest'}).then(function(imResponse) {
  messageList = imResponse.data.messageList; // Message list
  chat.getMessageReadReceiptList(messageList).then(function(imResponse) {
    messageList = imResponse.data.messageList; // Message list
    // After the message list is pulled successfully
    // `Message.readReceiptInfo` will contain the message read receipt information.
    // Message.readReceiptInfo.isPeerRead - Whether the receiver has sent a read receipt
  }).catch(function(imError) {
    // Failed to pull the read receipt list
  });
});

chat.getGroupMessageReadMemberList(options);

// Pull the list of members who have read the group message
let promise = chat.getGroupMessageReadMemberList({
  message,
  filter: 0,
  cursor: '', // Pass in `''` for the first pull
  count: 30,
});
promise.then(function(imResponse) {
  const { isCompleted, cursor, messageID, readUserIDList } = imResponse.data;
  // isCompleted - true: completed; false: not completed
  // cursor - Used for the subsequent pull when `isCompleted` is `false`
  // messageID - Group message ID
  // readUserIDList - List of `userID` values of members who have read the message
}).catch(function(imError) {
  // Failed to pull the list of members who have read the group message
});

// Pull the list of members who have not read the group message
let promise = chat.getGroupMessageReadMemberList({
  message,
  filter: 1,
  cursor: '', // Pass in `''` for the first pull
  count: 30,
});
promise.then(function(imResponse) {
  const { isCompleted, cursor, messageID, readUserIDList } = imResponse.data;
  // isCompleted - true: completed; false: not completed
  // cursor - Used for the subsequent pull when `isCompleted` is `false`
  // messageID - Group message ID
  // unreadUserIDList - List of `userID` values of members who have not read the group message
}).catch(function(imError) {
  // Failed to pull the list of members who have not read the group message
  // 10062 - The read receipt information for the group message was not found.
});