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<a href="index.html">Backend/Controller</a> host.js
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<span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js">const Event = require('../Models/Event');
const User = require('../Models/User');
const EventParticipationLog = require('../Models/EventParticipationLog');
&nbsp;
// Host dashboard: list events and detailed analytics
async function <span class="fstat-no" title="function not covered" >getHostDashboard(</span>req, res) {
<span class="cstat-no" title="statement not covered" > try {</span>
const userId = <span class="cstat-no" title="statement not covered" >req.user.id;</span>
const events = <span class="cstat-no" title="statement not covered" >await Event.find({ hostUserId: userId });</span>
const totalEvents = <span class="cstat-no" title="statement not covered" >events.length;</span>
const upcomingEvents = <span class="cstat-no" title="statement not covered" >events.filter(<span class="fstat-no" title="function not covered" >e </span>=&gt; <span class="cstat-no" title="statement not covered" >e.schedule &amp;&amp; e.schedule.start &gt; new Date())</span>;</span>
// Get detailed analytics for each event
const eventsWithAnalytics = <span class="cstat-no" title="statement not covered" >await Promise.all(events.map(<span class="fstat-no" title="function not covered" >as</span>ync (event) =&gt; {</span>
const logs = <span class="cstat-no" title="statement not covered" >await EventParticipationLog.find({ eventId: event._id });</span>
const totalRegistered = <span class="cstat-no" title="statement not covered" >logs.length;</span>
const totalAttended = <span class="cstat-no" title="statement not covered" >logs.filter(<span class="fstat-no" title="function not covered" >l </span>=&gt; <span class="cstat-no" title="statement not covered" >l.status === 'attended')</span>.length;</span>
const totalWaitlisted = <span class="cstat-no" title="statement not covered" >logs.filter(<span class="fstat-no" title="function not covered" >l </span>=&gt; <span class="cstat-no" title="statement not covered" >l.status === 'waitlisted')</span>.length;</span>
const totalPaid = <span class="cstat-no" title="statement not covered" >logs.filter(<span class="fstat-no" title="function not covered" >l </span>=&gt; <span class="cstat-no" title="statement not covered" >l.paymentType === 'paid')</span>.length;</span>
const totalFree = <span class="cstat-no" title="statement not covered" >logs.filter(<span class="fstat-no" title="function not covered" >l </span>=&gt; <span class="cstat-no" title="statement not covered" >l.paymentType === 'free')</span>.length;</span>
<span class="cstat-no" title="statement not covered" > return {</span>
...event.toObject(),
analytics: {
totalRegistered,
totalAttended,
totalWaitlisted,
totalPaid,
totalFree,
attendanceRate: totalRegistered &gt; 0 ? (totalAttended / totalRegistered * 100).toFixed(2) : 0
}
};
}));
const totalParticipants = <span class="cstat-no" title="statement not covered" >eventsWithAnalytics.reduce(<span class="fstat-no" title="function not covered" >(s</span>um, e) =&gt; <span class="cstat-no" title="statement not covered" >sum + e.analytics.totalRegistered,</span> 0);</span>
const totalAttended = <span class="cstat-no" title="statement not covered" >eventsWithAnalytics.reduce(<span class="fstat-no" title="function not covered" >(s</span>um, e) =&gt; <span class="cstat-no" title="statement not covered" >sum + e.analytics.totalAttended,</span> 0);</span>
<span class="cstat-no" title="statement not covered" > return res.json({</span>
totalEvents,
totalParticipants,
totalAttended,
upcomingEvents: upcomingEvents.length,
events: eventsWithAnalytics
});
} catch (err) {
<span class="cstat-no" title="statement not covered" > return res.status(500).json({ error: 'Server error fetching host dashboard.' });</span>
}
}
&nbsp;
// Create a new event (host only)
async function <span class="fstat-no" title="function not covered" >createEvent(</span>req, res) {
<span class="cstat-no" title="statement not covered" > try {</span>
const userId = <span class="cstat-no" title="statement not covered" >req.user.id;</span>
const eventData = <span class="cstat-no" title="statement not covered" >req.body;</span>
<span class="cstat-no" title="statement not covered" > eventData.hostUserId = userId;</span>
const event = <span class="cstat-no" title="statement not covered" >await Event.create(eventData);</span>
// Optionally add event to user's eventHistory.hosted
<span class="cstat-no" title="statement not covered" > await User.findByIdAndUpdate(userId, { $push: { 'eventHistory.hosted': event._id } });</span>
<span class="cstat-no" title="statement not covered" > return res.status(201).json(event);</span>
} catch (err) {
<span class="cstat-no" title="statement not covered" > return res.status(500).json({ error: 'Server error creating event.' });</span>
}
}
&nbsp;
// Update an event (host only)
async function <span class="fstat-no" title="function not covered" >updateEvent(</span>req, res) {
<span class="cstat-no" title="statement not covered" > try {</span>
const userId = <span class="cstat-no" title="statement not covered" >req.user.id;</span>
const eventId = <span class="cstat-no" title="statement not covered" >req.params.id;</span>
const event = <span class="cstat-no" title="statement not covered" >await Event.findOne({ _id: eventId, hostUserId: userId });</span>
<span class="cstat-no" title="statement not covered" > if (!event) <span class="cstat-no" title="statement not covered" >return res.status(404).json({ error: 'Event not found or not owned by user.' });</span></span>
<span class="cstat-no" title="statement not covered" > Object.assign(event, req.body);</span>
<span class="cstat-no" title="statement not covered" > await event.save();</span>
<span class="cstat-no" title="statement not covered" > return res.json(event);</span>
} catch (err) {
<span class="cstat-no" title="statement not covered" > return res.status(500).json({ error: 'Server error updating event.' });</span>
}
}
&nbsp;
// Delete an event (host only)
async function <span class="fstat-no" title="function not covered" >deleteEvent(</span>req, res) {
<span class="cstat-no" title="statement not covered" > try {</span>
const userId = <span class="cstat-no" title="statement not covered" >req.user.id;</span>
const eventId = <span class="cstat-no" title="statement not covered" >req.params.id;</span>
const event = <span class="cstat-no" title="statement not covered" >await Event.findOneAndDelete({ _id: eventId, hostUserId: userId });</span>
<span class="cstat-no" title="statement not covered" > if (!event) <span class="cstat-no" title="statement not covered" >return res.status(404).json({ error: 'Event not found or not owned by user.' });</span></span>
// Optionally remove from user's eventHistory.hosted
<span class="cstat-no" title="statement not covered" > await User.findByIdAndUpdate(userId, { $pull: { 'eventHistory.hosted': eventId } });</span>
<span class="cstat-no" title="statement not covered" > return res.json({ message: 'Event deleted.' });</span>
} catch (err) {
<span class="cstat-no" title="statement not covered" > return res.status(500).json({ error: 'Server error deleting event.' });</span>
}
}
&nbsp;
// List all events hosted by the current user
async function <span class="fstat-no" title="function not covered" >getMyEvents(</span>req, res) {
<span class="cstat-no" title="statement not covered" > try {</span>
const userId = <span class="cstat-no" title="statement not covered" >req.user.id;</span>
const events = <span class="cstat-no" title="statement not covered" >await Event.find({ hostUserId: userId });</span>
<span class="cstat-no" title="statement not covered" > return res.json(events);</span>
} catch (err) {
<span class="cstat-no" title="statement not covered" > return res.status(500).json({ error: 'Server error fetching events.' });</span>
}
}
&nbsp;
// Get participants for a given event (host only)
async function <span class="fstat-no" title="function not covered" >getEventParticipants(</span>req, res) {
<span class="cstat-no" title="statement not covered" > try {</span>
const userId = <span class="cstat-no" title="statement not covered" >req.user.id;</span>
const eventId = <span class="cstat-no" title="statement not covered" >req.params.id;</span>
const event = <span class="cstat-no" title="statement not covered" >await Event.findOne({ _id: eventId, hostUserId: userId });</span>
<span class="cstat-no" title="statement not covered" > if (!event) <span class="cstat-no" title="statement not covered" >return res.status(404).json({ error: 'Event not found or not owned by user.' });</span></span>
// Get detailed participant information from EventParticipationLog
const logs = <span class="cstat-no" title="statement not covered" >await EventParticipationLog.find({ eventId }).populate('userId', 'name email phone');</span>
const participants = <span class="cstat-no" title="statement not covered" >logs.map(<span class="fstat-no" title="function not covered" >lo</span>g =&gt; (<span class="cstat-no" title="statement not covered" >{</span></span>
userId: log.userId._id,
name: log.userId.name,
email: log.userId.email,
phone: log.userId.phone,
status: log.status,
paymentType: log.paymentType,
paymentStatus: log.paymentStatus,
attendanceTimestamp: log.attendanceTimestamp,
timestamp: log.timestamp
}));
<span class="cstat-no" title="statement not covered" > return res.json({ participants });</span>
} catch (err) {
<span class="cstat-no" title="statement not covered" > return res.status(500).json({ error: 'Server error fetching participants.' });</span>
}
}
&nbsp;
module.exports = {
getHostDashboard,
createEvent,
updateEvent,
deleteEvent,
getMyEvents,
getEventParticipants
}; </pre></td></tr></table></pre>
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