TerminalHomepage/js/networking.js

150 lines
3.9 KiB
JavaScript

// Global networking variables
const user = { id: "", name: "", history: [], connected: false, chatPull: null };
let chatMode = "default";
// Tell server to disconnect
document.body.onunload = document.body.onbeforeunload = () => {
if (user.connected)
fetch('/disconnect', {
method: 'POST',
headers: {
'Accept': 'application/json',
'Content-Type': 'application/json'
},
body: JSON.stringify({
name: user.name,
id: user.id
})
}).then(res => {});
};
// Connect to server
function connect(name) {
user.name = name;
fetch('/connect', {
method: 'POST',
headers: {
'Accept': 'application/json',
'Content-Type': 'application/json'
},
body: JSON.stringify({ name })
}).then(res => {
if (res.status === 200) {
user.connected = true;
return res.json();
}
// No valid status code was sent
console.error("Could not connect to server!");
}).then(res => {
if (res === undefined)
return;
// Save provided id
const { id } = res;
user.id = id;
outputText({output: `Connected as '${name}#${id}'.`});
});
}
// Send nickname to server, receive verification
function sendNickname(name) {
fetch('/nickname', {
method: 'POST',
headers: {
'Accept': 'application/json',
'Content-Type': 'application/json'
},
body: JSON.stringify({
oldName: user.name,
id: user.id,
name
})
}).then(res => {
if (res.status === 200)
return res.json();
}).then(res => {
// No valid status code
if (res === undefined)
return;
// Receive name and save it
const { id } = res;
user.name = name;
user.id = id;
// Reply whether name is taken or not
outputText({output: `Applied name '${name}#${id}'.`});
});
}
// Pull incoming chat messages
function getChatMessages() {
fetch('/getChat', {
method: 'POST',
headers: {
'Accept': 'application/json',
'Content-Type': 'application/json'
},
body: JSON.stringify({
name: user.name,
id: user.id
})
}).then(res => {
// Incoming messages
if (res.status === 200)
return res.json();
// No new messages
else if (res.status === 204)
return;
cmd_exit("Error occurred while fetching messages!");
}).then(res => {
// No messages or invalid status code
if (res === undefined)
return;
// Output all messages by user
for (const user in res)
for (const msg of res[user])
outputText({
preNext: `${user}: `,
output: msg
});
});
}
// Send a direct message, do not look at response
function directMessage(name, message) {
fetch('/message', {
method: 'POST',
headers: {
'Accept': 'application/json',
'Content-Type': 'application/json'
},
body: JSON.stringify({
recipient: name,
name: user.name,
id: user.id,
message
})
}).then(res => {});
}
// function globalMessage(message) {}
// Request all usernames and number of anonymous users
function requestUsernames() {
fetch('/getNames', {
method: 'GET',
headers: {
'Accept': 'application/json',
}
}).then(res => {
if (res.status === 200)
return res.json();
}).then(res => {
if (res === undefined)
return;
let output = "";
for (const u of res)
output += `${u.name}#${u.id} `;
outputText({ output });
});
}