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event Management page
front end------------>


<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Event Management System</title>
<script src="https://code.jquery.com/jquery-3.6.4.min.js"></script>
</head>
<style>
body {
font-family: Arial, sans-serif;
background-color: #f4f4f4;
margin: 0;
padding: 0;
}

.container {
max-width: 600px;
margin: 50px auto;
background-color: #fff;
padding: 20px;
border-radius: 8px;
box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h1 {
text-align: center;
color: #333;
}

form {
display: grid;
gap: 15px;
}

label {
font-weight: bold;
}

input,
textarea {
width: 100%;
padding: 10px;
box-sizing: border-box;
border: 1px solid #ccc;
border-radius: 4px;
}

button {
background-color: #4caf50;
color: #fff;
padding: 10px 15px;
border: none;
border-radius: 4px;
cursor: pointer;
}

button:hover {
background-color: #45a049;
}

</style>
<body>

<!-- Event Management Section -->
<h1>"Event scehdule Manager"</h1>
<div id="event-management" >
<h2>Event Management</h2>
<div id="username"></div>
<button onclick="displayUpcomingEvents()">Upcoming Events</button>
<button onclick="manageMyEvents()">Manage My Events</button>


<button onclick="createNewEvent()">Create New Event</button>
<button onclick="trackMyEvents()">Track My Events</button>
<button onclick="logout()">Logout</button>
<div id="eventsContainer"></div>
<div id="manageEventsContainer" style="display: none"> </div>
<div id="trackEventsContainer" style="display: none"> </div>
</div>
</body>
<script>

document.addEventListener('DOMContentLoaded', function () {
// Get the username parameter from the URL
const urlParams = new URLSearchParams(window.location.search);
const username = urlParams.get('username');

// Display the username on the page
const usernameElement = document.getElementById('username');
if (usernameElement) {
usernameElement.textContent = `Welcome, ${username}!`;
}
});

//upcoming event

function displayUpcomingEvents() {
fetch('https://localhost:7299/api/Evensht/upcoming')
.then(response => {
if (!response.ok) {
throw new Error(`Failed to fetch upcoming events: ${response.status} - ${response.statusText}`);
}
return response.json();
})
.then(upcomingEvents => {
const eventsContainer = document.getElementById('eventsContainer');
eventsContainer.innerHTML = '';

upcomingEvents.forEach(event => {
const eventDiv = document.createElement('div');
eventDiv.classList.add('event-container');
eventDiv.innerHTML = `<h3>${event.name}</h3><p><strong>Date:</strong>${event.date}</p><p><strong>Description :</strong>${event.description}</p><p><strong>Location:</strong${event.location}</p>-`;

// Add a Join button with an onclick event to dynamically obtain the event name




const joinButton = document.createElement('button');
joinButton.textContent = 'Join Event';
joinButton.onclick = function () {
joinEvent(event.name);
};

eventDiv.appendChild(joinButton);
eventsContainer.appendChild(eventDiv);
});
})
.catch(error => {
alert(`Error fetching upcoming events: ${error.message}`);
});
}


//join the event
function joinEvent(eventName) {
const urlParams = new URLSearchParams(window.location.search);
const username = urlParams.get('username') || "YourDefaultUsername";
const joinRequest = {
EventName: eventName,
Username: username
};

fetch('https://localhost:7299/api/Evensht/join', {
method: 'POST',
headers: {
'Content-Type': 'application/json',
},
body: JSON.stringify(joinRequest),
})
.then(response => {
if (!response.ok) {
throw new Error(`Failed to join event: ${response.status} - ${response.statusText}`);
}
return response.json();
})
.then(data => {
alert(`Successfully joined event: ${data}`);
// You can perform additional actions here after a successful join
})
.catch(error => {
alert(`Error joining event: ${error.message}`);
});
}


/// manage
function manageMyEvents() {
const urlParams = new URLSearchParams(window.location.search);
const username = urlParams.get('username') || "YourDefaultUsername";



fetch(`https://localhost:7299/api/Evensht/manage/${username}`)
.then(response => {
if (!response.ok) {
throw new Error(`Failed to fetch managed events: ${response.status} - ${response.statusText}`);
}
return response.json();
})
.then(managedEvents => {
const manageEventsContainer = document.getElementById('manageEventsContainer');
manageEventsContainer.innerHTML = '';

if (managedEvents.length > 0) {
managedEvents.forEach(eventInfo => {
const eventDiv = document.createElement('div');
eventDiv.classList.add('event-container');
eventDiv.innerHTML = `<p>${eventInfo}</p>`;
manageEventsContainer.appendChild(eventDiv);
});
} else {
manageEventsContainer.innerHTML = '<p>No events tracked yet.</p>';
}

// Show the manageEventsContainer and hide eventsContainer
document.getElementById('eventsContainer').style.display = 'none';
manageEventsContainer.style.display = 'block';
})
.catch(error => {
alert(`Error fetching managed events: ${error.message}`);
});
}

function createNewEvent() {
// Implement logic to create a new event using AJAX
// Make an AJAX POST request to the create event endpoint
const eventName = prompt("Enter the event name:");
const location = prompt("Enter the event location:");
const date = prompt("Enter the event date (YYYY-MM-DDTHH:mm:ss.fffZ):");


const description = prompt("Enter tEe event description:");

// Data to be sent in the request body
const eventData = {
Name: eventName,
Location: location,
Date: date,
Description: description
};

// Make an AJAX POST request
$.ajax({
type: "POST",
url: "https://localhost:7299/api/Evensht/create",
contentType: "application/json",
data: JSON.stringify(eventData),
success: function (data) {
alert(data);
},
error: function (error) {
alert("Error creating event: " + error.responseText);
}
});
}

//track the events

function trackMyEvents() {
const urlParams = new URLSearchParams(window.location.search);
const username = urlParams.get('username') || "YourDefaultUsername";



fetch(`https://localhost:7299/api/Evensht/track/${username}`)
.then(response => {
if (!response.ok) {
throw new Error(`Failed to fetch tracked events: ${response.status} - ${response.statusText}`);
}
return response.json();
})
.then(trackedEvents => {
const trackEventsContainer = document.getElementById('trackEventsContainer');
trackEventsContainer.innerHTML = '';

if (trackedEvents.length > 0) {
trackedEvents.forEach(eventInfo => {
const eventDiv = document.createElement('div');
eventDiv.classList.add('event-container');
eventDiv.innerHTML = `<p>${eventInfo}</p>`;
trackEventsContainer.appendChild(eventDiv);
});
} else {
trackEventsContainer.innerHTML = '<p>No events tracked yet.</p>';
}

// Show the trackEventsContainer and hide eventsContainer
document.getElementById('eventsContainer').style.display = 'none';




document.getElementById('manageEventsContainer').style.display = 'none';
trackEventsContainer.style.display = 'block';
})
.catch(error => {
alert(`Error fetching tracked events: ${error.message}`);
});
}


function logout() {
window.location.href=`project.html`;

}
</script>
</html>

================================================================================================

login page html---------->

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Event Management System</title>
<script src="https://code.jquery.com/jquery-3.6.4.min.js"></script>
</head>
<style>

h1, h2 {
color: #333;
}

#registration-form, #login-form, #event-management {
max-width: 400px;
margin: 20px auto;
padding: 20px;
border: 1px solid #ccc;
border-radius: 5px;
background-color: #f9f9f9;
}

label {
display: block;
margin-bottom: 5px;
color: #555;
}

input {
width: 100%;
padding: 8px;
margin-bottom: 10px;
box-sizing: border-box;
}

button {
background-color: #4caf50;
color: white;
padding: 10px 15px;
border: none;
border-radius: 3px;
cursor: pointer;
}

button:hover {
background-color: #45a049;
}
</style>
<body>

<h1>Event Management System</h1>

<div id="registration-form" >
<h2>User Registration</h2>
<label for="reg-username">Username:</label>
<input type="text" id="reg-username" required>
<br>
<label for="reg-password">Password:</label>
<input type="password" id="reg-password" required>
<br>
<button onclick="registerUser()">Register</button>
</div>

<!-- User Login Form -->
<div id="login-form" >
<h2>User Login</h2>
<label for="login-username">Username:</label>
<input type="text" id="login-username" required>
<br>
<label for="login-password">Password:</label>
<input type="password" id="login-password" required>
<br>
<button onclick="loginUser()">Login</button>
</div>

<!-- Event Management Section -->
<div id="event-management" style="display: none;">
<h2>Event Management</h2>
<button onclick="displayUpcomingEvents()">Upcoming Events</button>
<button onclick="manageMyEvents()">Manage My Events</button>


<button onclick="createNewEvent()">Create New Event</button>
<button onclick="trackMyEvents()">Track My Events</button>
<button onclick="logout()">Logout</button>
</div>
</body>

<script>
const apiUrl = "https://localhost:7299/api/Evensht";

function registerUser() {
const username = $("#reg-username").val();
const password = $("#reg-password").val();

$.post({
url: "https://localhost:7299/api/Evensht/register",
data: JSON.stringify({ Username: username, Password: password }),
contentType: "application/json",
success: function (data) {
alert("registration sucessful");
},
error: function (xhr, status, error) {
alert("Registration failed. Please try again or change username");
console.error("Error:", xhr.responseText);
}
});
}


function loginUser() {

const username = $("#login-username").val();
const password = $("#login-password").val();

$.post({
url: `https://localhost:7299/api/Evensht/login`,
type:"POST",
contentType: "application/json",
data: JSON.stringify({ Username: username, Password: password }),
success: function(data)
{
if (data.message === "Login successful")
{
alert("login succesfully");
window.location.href= `event login page.html?username=${encodeURIComponent(username)}`;


} else
{
alert("Login failed. Please check your credentials.");
}
},
error: function(error) {
// Handle errors here
console.error("Error during login:", error);
}
});
}
</script>
</body>
</html>


================================================================================================

controller
-------------->

using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Identity.Data;
using Microsoft.AspNetCore.Mvc;
using System.Collections.Generic;
using System.Linq;
using WebApplication10.models;

namespace WebApplication10.Controllers
{
[Route("api/[controller]")]
[ApiController]
public class EvenshtController : ControllerBase
{
private static readonly List<User> Users = new List<User>();
private static readonly List<Event> Events = new List<Event>();


private static readonly Dictionary<string, List<string>> EventDetails = new Dictionary<string, List<string>>();
private static readonly Dictionary<string, List<string>> UserEvents = new Dictionary<string, List<string>>();

// POST api/event/register
[HttpPost("register")]
public IActionResult Register(User user)
{
if (Users.Any(u => u.Username == user.Username))
{
return BadRequest("user already exist");

}
Users.Add(user);
return Ok("registration sucessfull ");
}

// POST api/event/login
[HttpPost("login")]
public IActionResult Login([FromBody] User user)
{
if (ModelState.IsValid)
{
if (Users.Any(u => u.Username == user.Username && u.Password == user.Password))
{
return Ok(new { message = "Login successful", username = user.Username });
}
return BadRequest("Invalid credentials.");

}
return BadRequest("Invalid model state");

}

// GET api/event/upcoming
[HttpGet("upcoming")]
public IActionResult GetUpcomingEvents()
{
if(Events.Count ==0)
{
return Ok("no events yet");
}
return Ok(Events);
}

// POST api/event/create
[HttpPost("create")]
public IActionResult CreateEvent([FromBody]Event ev)
{
if(ev==null)
{
return BadRequest("invalid data");
}

Events.Add(ev);
return Ok($"Event {ev.Name} created successfully!");
}

// POST api/event/join
[HttpPost("join")]

public ActionResult JoinEvent([FromBody] JoinRequest joinRequest)
{
string eventName = joinRequest.Eventname;
string username = joinRequest.Username;

// Check if the event exists
Event eventDetails = Events.FirstOrDefault(e => e.Name == eventName);

if (eventDetails == null)
{
return NotFound($"Event '{eventName}' does not exist.");
}

if (!UserEvents.ContainsKey(username))
{
UserEvents[username] = new List<string>();
}

// Check if the user has already joined the event
if (UserEvents[username].Contains($"Participant: {username}, Event: {eventName}"))
{
return Conflict($"User '{username}' has already joined the event '{eventName}'.");
}

UserEvents[username].Add($"Participant: {username}, Event: {eventName}");
// Add more event information as needed

return Ok($"Successfully joined event: {eventName}");
}

// GET api/event/track/{username}



[HttpGet("track/{username}")]
public IActionResult TrackEvents(string username)
{
if (UserEvents.ContainsKey(username))
{
List<string> trackedEvents = UserEvents[username];

if (trackedEvents.Count == 0)
{
return Ok("No events tracked yet.");
}

List<Event> userEventsDetails = new List<Event>();

foreach (string trackedEvent in trackedEvents)
{
// Extract event name from trackedEvent
string eventName = trackedEvent.Split(',')[1].Trim().Split(':')[1].Trim();

// Find the event in Events list
Event eventDetails = Events.FirstOrDefault(e => e.Name == eventName);

if (eventDetails != null)
{
userEventsDetails.Add(eventDetails);
}
}

// Sort events by date
userEventsDetails = userEventsDetails.OrderBy(e => e.Date).ToList();

// Construct detailed event information
List<string> detailedEventInfo = userEventsDetails
.Select(e => $"Event: {e.Name}, Location: {e.Location}, Date: {e.Date}, Description: {e.Description}")
.ToList();

return Ok(detailedEventInfo);
}

return Ok("No events tracked yet.");
}
[HttpGet("manage/{username}")]
public IActionResult Manage(string username)
{
if (UserEvents.ContainsKey(username))
{
List<string> trackedEvents = UserEvents[username];
List<string> detailedEventInfo = new List<string>();

foreach (string trackedEvent in trackedEvents)
{
// Extract event name from trackedEvent
string eventName = trackedEvent.Split(',')[1].Trim().Split(':')[1].Trim();

// Find the event in Events list
Event eventDetails = Events.FirstOrDefault(e => e.Name == eventName);

if (eventDetails != null)
{
// Construct detailed event information
string eventInfo = $"Event: {eventDetails.Name}, Location: {eventDetails.Location}, Date: {eventDetails.Date}, Description: {eventDetails.Description}";
detailedEventInfo.Add(eventInfo);
}
}

return Ok(detailedEventInfo);
}

return Ok("No events tracked yet.");
}
}
}



==============================================================================================

models
---------------------->


namespace WebApplication10.models
{
public class User

{
public string Username { get; set; }
public string Password { get; set; }
}
public class Event
{
public String Name { get; set; }
public string Location { get; set; }
public DateTime Date { get; set; }
public string Description { get; set; }
}
public class JoinRequest
{
public string Eventname { get; set; }
public string Username { get; set; }
}
}



=====================================================================

program
------------------------------>



var builder = WebApplication.CreateBuilder(args);

// Add services to the container.

builder.Services.AddControllers();
// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();
builder.Services.AddCors(options =>
{
options.AddPolicy("AllowAnyOrigin",
builder =>
{
builder.AllowAnyOrigin()
.AllowAnyMethod()
.AllowAnyHeader();
});
});

var app = builder.Build();

// Configure the HTTP request pipeline.
app.UseCors("AllowAnyOrigin");

// Configure the HTTP request pipeline.
if (app.Environment.IsDevelopment())
{
app.UseSwagger();
app.UseSwaggerUI();
}

app.UseHttpsRedirection();

app.UseAuthorization();

app.MapControllers();

app.Run();
     
 
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