Merge remote-tracking branch 'origin/master' into DtoBuilders

instead of event title and organizer, we now also show place and date

WebApp/DTOs/EventDetailsDto.cs

@@ -1,18 +1,21 @@
-using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations;
 using WebApp.Entities;
 
 namespace WebApp.DTOs;
 
 // Output values in JSON file
 public record class EventDetailsDto
-(
-    int EventId,
-    [Required] int? OrganisationId,
-    [Required] string? OrganisationName,
-    [Required][StringLength(50)] string Title,
-    [StringLength(500)] string Description,
-    [Required][StringLength(100)] string Location,
-    [Required] DateTime? EventDate,
-    ICollection<EventSkill> EventSkills,
-    ICollection<EventRegistration> EventRegistrations
-);
+{
+    public int EventId { get; set; }
+    [Required] public int? OrganisationId {  get; set; }
+    [Required] public string? OrganisationName { get; set; }
+    [Required][StringLength(50)] public string Title { get; set; }
+    [StringLength(500)] public string Description { get; set; }
+    [Required][StringLength(100)] public string Location { get; set; }
+    [Required] public DateTime? EventDate { get; set; }
+    //ICollection<EventSkill> EventSkills,
+    public ICollection<SkillSummaryDto> EventSkills { get; set; }
+    public ICollection<EventRegistrationDto> EventRegistrations { get; set; }
+
+    public EventDetailsDto() { }
+};

WebApp/DTOs/EventRegistrationDto.cs

@@ -0,0 +1,15 @@
+using System.ComponentModel.DataAnnotations;
+using WebApp.Entities;
+
+namespace WebApp.DTOs;
+
+public record class EventRegistrationDto
+{
+    public int EventId { get; set; }
+    public int UserId { get; set; }
+    public string UserName { get; set; }
+    public DateTime RegisteredAt { get; set; }
+
+    public EventRegistrationDto() { }
+
+};

WebApp/DTOs/EventSummaryDto.cs

@@ -1,17 +1,19 @@
-using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations;
 using WebApp.Entities;
 
 namespace WebApp.DTOs;
 
 // Output values in JSON file
-public record class EventSummaryDto(
-    int EventId,
-    [Required] string Organisation,
-    [Required] int OrganisationId,
-    [Required] [StringLength(50)] string Title,
-    [StringLength(500)] string Description,
-    [Required] [StringLength(100)] string Location,
-    [Required] DateTime? EventDate,
-    ICollection<EventSkill> EventSkills,
-    ICollection<EventRegistration> EventRegistrations
-    );
+public record class EventSummaryDto {
+    public int EventId { get; set; }
+    [Required] public string Organisation { get; set; }
+    [Required] public int OrganisationId { get; set; }
+    [Required] [StringLength(50)] public string Title { get; set; }
+    [StringLength(500)] public string Description { get; set; }
+    [Required] [StringLength(100)] public string Location { get; set; }
+    [Required] public DateTime? EventDate { get; set; }
+    public ICollection<SkillSummaryDto> EventSkills { get; set; }
+    public ICollection<EventRegistrationDto> EventRegistrations { get; set; }
+
+
+};

WebApp/DTOs/EventSummaryNoErDto.cs

@@ -1,4 +1,4 @@
-using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations;
 using WebApp.Entities;
 
 namespace WebApp.DTOs;
@@ -13,4 +13,5 @@ public record class EventSummaryNoErDto(
     [Required][StringLength(100)] string Location,
     [Required] DateTime? EventDate,
     ICollection<EventSkill> EventSkills
+    // ICollection<SkillSummaryDto> EventSkills
 );

WebApp/DTOs/SkillSummaryDto.cs

@@ -1,9 +1,13 @@
-using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations;
+using WebApp.Entities;
 
 namespace WebApp.DTOs;
 
 public record class SkillSummaryDto
-(
-    [Required] int SkillId,
-    [Required] string SkillName
-);
+{
+    public int? SkillId { get; set; }
+    public string? SkillName { get; set; }
+
+    public SkillSummaryDto() { }
+
+};

WebApp/Endpoints/AuthEndpoints.cs

@@ -1,4 +1,4 @@
-using System.Security.Cryptography;
+using System.Security.Cryptography;
 using System.Text;
 using Microsoft.EntityFrameworkCore;
 using WebApp.Data;
@@ -18,6 +18,7 @@ namespace WebApp.Endpoints
             var group = app.MapGroup("api/auth")
                                         .WithParameterValidation();
 
+            // POST /api/auth/login
             group.MapPost("/login", async (LoginDto dto, ApplicationDbContext context, GeneralUseHelpers guh) =>
             {
                 var user = await context.WebUsers.FirstOrDefaultAsync(u => u.Email == dto.Email);
@@ -38,6 +39,7 @@ namespace WebApp.Endpoints
                 });
             });
 
+            // POST /api/auth/logout
             group.MapPost("/logout", async (HttpContext httpContext, GeneralUseHelpers guh) =>
             {
                 var token = await guh.GetTokenFromHTTPContext(httpContext);
@@ -54,6 +56,7 @@ namespace WebApp.Endpoints
                 return Results.Ok(new { success = true });
             });
 
+            // GET /api/auth/my_account
             group.MapGet("/my_account", async (HttpContext httpContext, GeneralUseHelpers guh) =>
             {
                 var token = await guh.GetTokenFromHTTPContext(httpContext);
@@ -77,6 +80,7 @@ namespace WebApp.Endpoints
             })
                 .WithName(GetUserEndpointName);
 
+            // GET /api/auth/my_events
             group.MapGet("/my_events", async (HttpContext httpContext, GeneralUseHelpers guh, ApplicationDbContext context) =>
             {
                 var token = await guh.GetTokenFromHTTPContext(httpContext);
@@ -95,9 +99,16 @@ namespace WebApp.Endpoints
 
                 if(!user.IsOrganisation)
                 {
-                    var events = await context.EventRegistrations
+
+                    var eventIds = await context.EventRegistrations
                         .Where(er => er.UserId == user.UserId)
-                        .Select(er => er.Event.ToEventSummaryNoErDto())
+                        .Select(er => er.EventId)
+                        .ToListAsync();
+
+                    var events = await context.Events
+                        .Where(e => eventIds.Contains(e.EventId))
+                        .Include(e => e.Organisation)
+                        .Select(e => e.ToEventSummaryDto())
                         .ToListAsync();
 
                     return Results.Ok(events);
@@ -122,13 +133,14 @@ namespace WebApp.Endpoints
 
             });
 
+            // POST /api/auth/add_skill
             group.MapPost("/add_skill", async (SingleSkillDto dto, HttpContext httpContext, ApplicationDbContext context, GeneralUseHelpers guh) =>
             {
                 // Uzyskaj użytkownika z tokenu
                 Token? token = await guh.GetTokenFromHTTPContext(httpContext);
                 User? user = await guh.GetUserFromToken(token);
 
-                // Tylko wolontariusze powinno móc dodawać swoje skille
+                // Tylko wolontariusze powinni móc dodawać swoje skille
                 if (user == null || user.IsOrganisation) {
                     return Results.Json(new { message = "Unauthorized" }, statusCode: 401);
                 }
@@ -158,14 +170,14 @@ namespace WebApp.Endpoints
                 return Results.Json(new { message = "Skill added successfully!" }, statusCode: 201);
             });
 
-
+            // POST /api/auth/remove_skill
             group.MapPost("/remove_skill", async (SingleSkillDto dto, HttpContext httpContext, ApplicationDbContext context, GeneralUseHelpers guh) =>
             {
                 // Uzyskaj użytkownika z tokenu
                 Token? token = await guh.GetTokenFromHTTPContext(httpContext);
                 User? user = await guh.GetUserFromToken(token);
 
-                // Tylko wolontariusze powinien móc usuwac swoje skille
+                // Tylko wolontariusze powinni móc usuwać swoje skille
                 if (user == null || user.IsOrganisation)
                 {
                     return Results.Json(new { message = "Unauthorized" }, statusCode: 401);
@@ -178,13 +190,12 @@ namespace WebApp.Endpoints
                     return Results.Json(new { message = "Skill not found" }, statusCode: 404);
                 }
 
-                // Sprawdzamy, czy ten użytkownik ma już taki skill. Jeżeli nie ma, nie ma sensu usuwac go kilkukrotnie.
+                // Sprawdzamy, czy ten użytkownik ma już taki skill. Jeżeli nie ma, to nie ma sensu usuwać czegoś, czego nie ma.
                 VolunteerSkill? vs = await context.VolunteerSkills.FirstOrDefaultAsync(v => v.UserId == user.UserId && v.SkillId == dto.Skill);
                 if (vs is not null)
                 {
-                    // Nie ma - zatem musimy dodać nowy VolunteerSkill do bazy
+                    // Ma - zatem musimy usunąć otrzymany VolunteerSkill z bazy
                     VolunteerSkill newVs = dto.ToVolunteerSkillEntity(user.UserId);
-                    
 
                     await context.VolunteerSkills.Where(v => v.SkillId == dto.Skill)
                         .ExecuteDeleteAsync();
@@ -192,14 +203,15 @@ namespace WebApp.Endpoints
                 }
                 else
                 {
-                    // Ma - (ta para UserId <-> SkillId już istnieje w bazie) użytkownik już ma ten skill
+                    // Nie ma - (ta para UserId <-> SkillId nie istnieje w bazie). Zwracamy błąd.
                     return Results.Json(new { message = "You don't have this skill" }, statusCode: 400);
                 }
 
                 return Results.Json(new { message = "Skill deleted successfully!" }, statusCode: 201);
             });
 
-            group.MapGet("/get_skills", async (HttpContext httpContext, ApplicationDbContext context, GeneralUseHelpers guh) =>
+            // GET /api/auth/skills
+            group.MapGet("/skills", async (HttpContext httpContext, ApplicationDbContext context, GeneralUseHelpers guh) =>
             {
                 // Uzyskaj użytkownika z tokenu
                 Token? token = await guh.GetTokenFromHTTPContext(httpContext);
@@ -217,7 +229,7 @@ namespace WebApp.Endpoints
                     .Include(vs => vs.Skill)
                     .Select(vs => new
                     {
-                        skillId = vs.Skill.SkillId,
+                        skillId = vs.Skill!.SkillId,
                         skillName = vs.Skill.Name
                     })
                     .ToListAsync();
@@ -240,4 +252,4 @@ namespace WebApp.Endpoints
             }
         }
     }
-}
+}

WebApp/Endpoints/EventRegistrationEndpoints.cs

@@ -0,0 +1,135 @@
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Http.HttpResults;
+using Microsoft.EntityFrameworkCore;
+using System.Security.Cryptography;
+using WebApp.Data;
+using WebApp.DTOs;
+using WebApp.Entities;
+using WebApp.Mapping;
+
+namespace WebApp.Endpoints
+{
+    public static class EventsRegistrationEndpoints
+    {
+        const string GetEventEndpointRegistrationName = "GetEventRegistration";
+
+        public static RouteGroupBuilder MapEventsRegistrationEndpoints(this WebApplication app)
+        {
+            var group = app.MapGroup("api/events")
+                                    .WithParameterValidation();
+
+            // POST /api/events/join/{id}
+            group.MapPost("/join/{id}",
+                async (int id, ApplicationDbContext dbContext, HttpContext httpContext, GeneralUseHelpers guhf) =>
+            {
+                Event? Eve = await dbContext.Events.FindAsync(id);
+                if (Eve is null)
+                    return Results.Json(new { success = false, error_msg = "Event not found." });
+
+                Token? token = await guhf.GetTokenFromHTTPContext(httpContext);
+                User? user = await guhf.GetUserFromToken(token);
+
+                if (user is null || user.IsOrganisation)
+                    return Results.Json(new { success = false, error_msg = "Unauthorized or organisations cannot register for events." });
+
+                if (await dbContext.EventRegistrations.AnyAsync(er => er.UserId == user.UserId && er.EventId == id))
+                    return Results.Json(new { success = false, error_msg = "You are already registered for this event." });
+
+                if (Eve.EventDate < DateTime.UtcNow)
+                    return Results.Json(new { success = false, error_msg = "This event has already ended." });
+
+                EventRegistration registration = new EventRegistration
+                {
+                    UserId = user.UserId,
+                    EventId = id,
+                    RegisteredAt = DateTime.UtcNow
+                };
+                dbContext.EventRegistrations.Add(registration);
+                await dbContext.SaveChangesAsync();
+
+                return Results.Json(new { success = true });
+            });
+
+            // POST /api/events/leave/{id}
+            group.MapPost("/leave/{id}",
+                async (int id, ApplicationDbContext dbContext, HttpContext httpContext, GeneralUseHelpers guhf) =>
+            {
+                Event? Eve = await dbContext.Events.FindAsync(id);
+                if (Eve is null)
+                    return Results.Json(new { success = false, error_msg = "Event not found." });
+
+                Token? token = await guhf.GetTokenFromHTTPContext(httpContext);
+                User? user = await guhf.GetUserFromToken(token);
+
+                if (user is null)
+                    return Results.Json(new { success = false, error_msg = "Unauthorized." });
+                
+                if (!await dbContext.EventRegistrations.AnyAsync(er => er.UserId == user.UserId && er.EventId == id))
+                    return Results.Json(new { success = false, error_msg = "You are not registered for this event." });
+
+                if (Eve.EventDate < DateTime.UtcNow)
+                    return Results.Json(new { success = false, error_msg = "This event has already ended." });
+
+                EventRegistration? registration = await dbContext.EventRegistrations
+                    .FirstOrDefaultAsync(er => er.UserId == user.UserId && er.EventId == id);
+
+                dbContext.EventRegistrations.Remove(registration);
+                await dbContext.SaveChangesAsync();
+
+                return Results.Json(new { success = true });
+            });
+
+            // GET /api/events/registrations/{id}
+            group.MapGet("/registrations/{id}",
+                async (int id, ApplicationDbContext dbContext, HttpContext httpContext, GeneralUseHelpers guhf) =>
+            {
+                Event? Eve = await dbContext.Events.FindAsync(id);
+                if (Eve is null)
+                    return Results.Json(new { success = false, error_msg = "Event not found." });
+
+                Token? token = await guhf.GetTokenFromHTTPContext(httpContext);
+                Organisation? org = await guhf.GetOrganisationFromToken(token);
+                if (org is null || org.OrganisationId != Eve.OrganisationId)
+                    return Results.Json(new { success = false, error_msg = "Unauthorized." });
+
+                var registrations = await dbContext.EventRegistrations
+                    .Where(er => er.EventId == id)
+                    .Select(er => er.ToEventRegistrationDto())
+                    .ToListAsync();
+
+                return Results.Json(new
+                {
+                    success = true,
+                    registrations
+                });
+            });
+
+            // POST /api/events/remove/{id}/{userId}
+            group.MapPost("/remove/{id}/{userId}",
+                async (int id, int userId, ApplicationDbContext dbContext, HttpContext httpContext, GeneralUseHelpers guhf) =>
+            {
+                Event? Eve = await dbContext.Events.FindAsync(id);
+                if (Eve is null)
+                    return Results.Json(new { success = false, error_msg = "Event not found." });
+
+                Token? token = await guhf.GetTokenFromHTTPContext(httpContext);
+                Organisation? org = await guhf.GetOrganisationFromToken(token);
+                if (org is null || org.OrganisationId != Eve.OrganisationId)
+                    return Results.Json(new { success = false, error_msg = "Unauthorized." });
+
+                EventRegistration? registration = await dbContext.EventRegistrations
+                    .FirstOrDefaultAsync(er => er.UserId == userId && er.EventId == id);
+
+                if (registration is null)
+                    return Results.Json(new { success = false, error_msg = "Registration not found." });
+
+                dbContext.EventRegistrations.Remove(registration);
+                await dbContext.SaveChangesAsync();
+
+                return Results.Json(new { success = true });
+            });
+
+            return group;
+        }
+    }
+}

WebApp/Endpoints/EventsEndpoints.cs

@@ -1,5 +1,7 @@
-using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Http;
 using Microsoft.EntityFrameworkCore;
+using System.Diagnostics.CodeAnalysis;
+using System.Runtime.Intrinsics.Arm;
 using WebApp.Data;
 using WebApp.DTOs;
 using WebApp.Entities;
@@ -18,36 +20,36 @@ namespace WebApp.Endpoints
 
             // GET /events
             group.MapGet("/",
-                async (ApplicationDbContext dbContext, HttpContext httpContext) =>
+                async (ApplicationDbContext dbContext, HttpContext httpContext, GeneralUseHelpers guhf) =>
             {
 
-                var sort = httpContext.Request.Query["sort"].ToString();
-                IOrderedQueryable<Event> res;
-                var r = dbContext.Events
-                           .Include(Eve => Eve.Organisation);
+                // Sprawdź, czy lista powinna by posortowana rosnąco. Domyślnie: malejąco.
+                var sort = httpContext.Request.Query["sort"].ToString().ToUpper();
 
-                if (sort is not null && sort.ToUpper() == "ASC")
-                {
-                    res = r.OrderBy(Eve => Eve.EventId);
-                }
-                else
-                {
-                    res = r.OrderByDescending(Eve => Eve.EventId);
-                }
+                // Sprawdź, czy token należy do organizacji, a jeżeli tak, to do której.
+                Token? token = await guhf.GetTokenFromHTTPContext(httpContext);
+                Organisation? org = await guhf.GetOrganisationFromToken(token);
+
+                List<EventSummaryDto> result = await guhf.BuildSummaryEventsDto(
+                    dbContext,
+                    org,
+                    (sort == "ASC")
+                );
+
+                return Results.Ok(result);
 
-                    return await res
-                           .Select(Eve => Eve.ToEventSummaryDto()) //EventSummaryDto
-                           .AsNoTracking()
-                           .ToListAsync();
             });
-                
+
 
             // GET /events/1
-            group.MapGet("/{id}", 
+            group.MapGet("/{id}",
                 async (int id, ApplicationDbContext dbContext, HttpContext httpContext, GeneralUseHelpers guhf) =>
             {
-                Event? Eve = await dbContext.Events.FindAsync(id);
 
+                Event? Eve = await dbContext
+                    .Events
+                    .Include(e => e.Organisation)
+                    .FirstOrDefaultAsync(e => e.EventId == id);
                 if (Eve is null) return Results.NotFound();
 
                 // Sprawdź, czy token należy do organizacji, a jeżeli tak, to do której.
@@ -55,16 +57,14 @@ namespace WebApp.Endpoints
                 Organisation? org = await guhf.GetOrganisationFromToken(token);
 
                 // Jeśli token należy do organizacji, która utworzyła to wydarzenie,
-                // to zwróć także EventRegistrations. W przeciwnym razie usuń to pole
-                // przed jego wysłaniem!
-                if (org is null || org.OrganisationId != Eve.OrganisationId) Eve.EventRegistrations = [];
+                // to zwróć także EventRegistrations. W przeciwnym razie niech będzie to
+                // puste pole.
+                List<EventDetailsDto> result = await guhf.BuildDetailedEventsDto(
+                    dbContext,
+                    org
+                );
 
-                // DLACZEGO?
-                Eve.Organisation = await guhf.GetOrganisationFromId(Eve.OrganisationId);
-
-                EventDetailsDto EveDto = Eve.ToEventDetailsDto();
-
-                return Results.Ok(EveDto); //EventDetailsDto
+                return Results.Ok(result.FirstOrDefault(e => e.EventId == id));
             })
             .WithName(GetEventEndpointName);
 
@@ -134,7 +134,7 @@ namespace WebApp.Endpoints
                 // Uzyskaj organizację z tokenu
                 Token? token = await guhf.GetTokenFromHTTPContext(httpContext);
                 Organisation? org = await guhf.GetOrganisationFromToken(token);
-                if (org is null) return Results.StatusCode(403);
+                if (org is null) return Results.Unauthorized();
 
                 // Sprawdź, czy organizacja ma prawo
                 // do usunięcia tego (EventId = id) eventu.
@@ -155,21 +155,14 @@ namespace WebApp.Endpoints
                 {
 
                     // Uzyskaj organizację z tokenu
-                    var sort = httpContext.Request.Query["sort"].ToString();
+                    var sort = httpContext.Request.Query["sort"].ToString().ToUpper();
                     Token? token = await guhf.GetTokenFromHTTPContext(httpContext);
                     Organisation? org = await guhf.GetOrganisationFromToken(token);
+                    List<EventSummaryDto> SearchCandidates = await guhf.BuildSummaryEventsDto(dbContext, org, sort == "ASC");
                     List<EventSummaryDto> SearchResults = [];
 
 
-                    
-                    List<Event> AllEvents = await dbContext.Events.ToListAsync();
-                    if (sort is null || sort.ToUpper() != "ASC")
-                    {
-                        AllEvents.Reverse(); // aby wyświetlało od najnowszych wydarzeń
-
-                    }
-
-                    foreach(Event e in AllEvents)
+                    foreach(EventSummaryDto e in SearchCandidates)
                     {
                         bool matchFound = true;
                         // Logika wyszukiwania
@@ -182,19 +175,19 @@ namespace WebApp.Endpoints
 
                         if (query.TitleOrDescription is not null)
                         {
-                            var TitleMatch = guhf.SearchString(e.Title, query.TitleOrDescription);
+                            var TitleMatch = guhf.SearchString(e.Title,       query.TitleOrDescription);
                             var DescMatch  = guhf.SearchString(e.Description, query.TitleOrDescription);
                             if (!TitleMatch && !DescMatch) matchFound = false;
                         }
 
 
-                        //Zakres dat do wyszukiwania
-                        if(query.EventDateFrom is not null)
+                        // Zakres dat do wyszukiwania
+                        if (query.EventDateFrom is not null)
                         {
                             if (e.EventDate < query.EventDateFrom) matchFound = false;
 
                         }
-                        if(query.EventDateTo is not null)
+                        if (query.EventDateTo is not null)
                         {
                             if (e.EventDate > query.EventDateTo) matchFound = false;
                         }
@@ -208,21 +201,102 @@ namespace WebApp.Endpoints
                         // Uwaga! Zanim to zrobisz, sprawdź, czy użytkownik
                         // jest twórcą danego wydarzenia! Jeżeli nim nie jest,
                         // wyzeruj EventRegistrations!
-                        if (org is null || e.Organisation != org)
+                        if (org is null || e.OrganisationId != org.OrganisationId)
                         {
                             e.EventRegistrations.Clear();
                         }
 
-                        // UWAGA! TO NIE POWINNO TAK DZIAŁAĆ!
-                        // KTOKOLWIEK WIDZIAŁ, KTOKOLWIEK WIE CZEMU Organisation JEST null?
-                        e.Organisation = await guhf.GetOrganisationFromId(e.OrganisationId);
-
-                        if (matchFound) SearchResults.Add(e.ToEventSummaryDto());
+                        if (matchFound) SearchResults.Add(e);
                     }
 
                     return Results.Ok(SearchResults);
                 });
 
+            // POST /events/1/add_skill
+            group.MapPost("/{id}/add_skill/",
+                async (int id, SingleSkillDto dto, ApplicationDbContext dbContext, HttpContext httpContext, GeneralUseHelpers guhf) =>
+                {
+                    Event? Eve = await dbContext.Events.FindAsync(id);
+
+                    if (Eve is null) return Results.Json(new { message = "Event not found" }, statusCode: 404);
+
+                    // Sprawdź, czy token należy do organizacji, a jeżeli tak, to do której.
+                    Token? token = await guhf.GetTokenFromHTTPContext(httpContext);
+                    Organisation? org = await guhf.GetOrganisationFromToken(token);
+
+                    // Jeśli token należy do organizacji, która utworzyła to wydarzenie,
+                    // to zwróć także EventRegistrations. W przeciwnym razie usuń to pole
+                    // przed jego wysłaniem!
+                    if (org is null || org.OrganisationId != Eve.OrganisationId) return Results.Unauthorized();
+
+                    // Szukamy skilla w bazie o ID takim, jak w otrzymanym DTO
+                    Skill? skill = await dbContext.Skills.FindAsync(dto.Skill);
+                    if (skill is null)
+                    {
+                        return Results.Json(new { message = "Skill not found" }, statusCode: 404);
+                    }
+
+                    // Sprawdzamy, czy to wydarzenie nie ma już takiego skilla. Jeżeli ma, nie ma sensu dodawać go kilkukrotnie.
+                    EventSkill? es = await dbContext.EventSkills.FirstOrDefaultAsync(e => e.EventId == id && e.SkillId == dto.Skill);
+                    if (es is null)
+                    {
+                        // Nie ma - zatem musimy dodać nowy EventSkill do bazy
+                        EventSkill newEs = dto.ToEventSkillEntity(Eve.EventId);
+                        dbContext.EventSkills.Add(newEs);
+                        await dbContext.SaveChangesAsync();
+
+                    }
+                    else
+                    {
+                        // Ma - (ta para EventId <-> SkillId już istnieje w bazie); ten Event posiada już ten skill
+                        return Results.Json(new { message = "Skill already assinged to this event!" }, statusCode: 400);
+                    }
+
+                    return Results.Json(new { message = "Skill added to event successfully!" }, statusCode: 201);
+
+                });
+
+            // POST /events/1/renive_skill
+            group.MapPost("/{id}/remove_skill/",
+                async (int id, SingleSkillDto dto, ApplicationDbContext dbContext, HttpContext httpContext, GeneralUseHelpers guhf) =>
+                {
+                    Event? Eve = await dbContext.Events.FindAsync(id);
+
+                    if (Eve is null) return Results.Json(new { message = "Event not found" }, statusCode: 404);
+
+                    // Sprawdź, czy token należy do organizacji, a jeżeli tak, to do której.
+                    Token? token = await guhf.GetTokenFromHTTPContext(httpContext);
+                    Organisation? org = await guhf.GetOrganisationFromToken(token);
+
+                    // Jeśli token należy do organizacji, która utworzyła to wydarzenie,
+                    // to zwróć także EventRegistrations. W przeciwnym razie usuń to pole
+                    // przed jego wysłaniem!
+                    if (org is null || org.OrganisationId != Eve.OrganisationId) return Results.Unauthorized();
+
+                    // Szukamy skilla w bazie o ID takim, jak w otrzymanym DTO
+                    Skill? skill = await dbContext.Skills.FindAsync(dto.Skill);
+                    if (skill is null)
+                    {
+                        return Results.Json(new { message = "Skill not found" }, statusCode: 404);
+                    }
+
+                    // Sprawdzamy, czy to wydarzenie nie ma już takiego skilla. Jeżeli nie ma, to nie ma sensu kasować czegoś, czego nie ma.
+                    EventSkill? es = await dbContext.EventSkills.FirstOrDefaultAsync(e => e.EventId == id && e.SkillId == dto.Skill);
+                    if (es is not null)
+                    {
+                        // Ma - zatem musimy usunąć ten EventSkill z bazy
+                        await dbContext.EventSkills.Where(e => e.SkillId == dto.Skill)
+                            .ExecuteDeleteAsync();
+                    }
+                    else
+                    {
+                        // Nie ma - (ta para EventId <-> SkillId nie istnieje w bazie); ten Event nie posiada tego skill'a
+                        return Results.Json(new { message = "This skill isn't assinged to this event!" }, statusCode: 400);
+                    }
+
+                    return Results.Json(new { message = "Skill removed from event successfully!" }, statusCode: 201);
+                });
+
             return group;
         }
     }

WebApp/Endpoints/GeneralUseHelperFunctions.cs

@@ -1,5 +1,6 @@
-using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore;
 using WebApp.Data;
+using WebApp.DTOs;
 using WebApp.Entities;
 
 namespace WebApp.Endpoints;
@@ -35,12 +36,7 @@ public class GeneralUseHelpers
         User? user = await GetUserFromToken(t);
         if (user is not null && user.IsOrganisation)
         {
-            Organisation? org = await _context.Organisations.FirstOrDefaultAsync(o => o.UserId == t.UserId);
-
-            if (org is null)
-            {
-                Console.WriteLine("!!!");
-            }
+            Organisation? org = await _context.Organisations.FirstOrDefaultAsync(o => o.UserId == t!.UserId);
 
             return org;
         }
@@ -112,4 +108,97 @@ public class GeneralUseHelpers
         // Sprawdza, czy któreś ze słów pasuje (nawet częściowo) do searchTerm
         return words.Any(word => word.Contains(searchTerm, StringComparison.OrdinalIgnoreCase));
     }
+
+    public async Task<List<EventDetailsDto>> BuildDetailedEventsDto(
+        ApplicationDbContext context,
+        Organisation? org,
+        bool sortAscending = false)
+    {
+        // https://khalidabuhakmeh.com/ef-core-and-aspnet-core-cycle-issue-and-solution
+
+        // Jeśli token należy do organizacji, która utworzyła to wydarzenie,
+        // to zwróć także EventRegistrations. W przeciwnym razie niech będzie to
+        // puste pole.
+
+        IQueryable<EventDetailsDto> result_iq = context
+                .Events
+                .Select(e => new EventDetailsDto
+                {
+                    EventId = e.EventId,
+                    OrganisationId = e.OrganisationId,
+                    OrganisationName = e.Organisation!.Name,
+                    Title = e.Title,
+                    Description = e.Description ?? "",
+                    Location = e.Location,
+                    EventDate = e.EventDate,
+                    EventSkills = e
+                        .EventSkills
+                        .Select(es => new SkillSummaryDto
+                        {
+                            SkillId = es.SkillId,
+                            SkillName = es.Skill!.Name
+                        }).ToList(),
+                    EventRegistrations = e.Organisation == org ?
+                        e.EventRegistrations
+                        .Select(er => new EventRegistrationDto
+                        {
+                            EventId = er.EventId,
+                            UserId = er.UserId,
+                            UserName = er.User!.FirstName + " " + er.User.LastName,
+                            RegisteredAt = er.RegisteredAt
+                        }).ToList() : null!
+                });
+
+        if (sortAscending) result_iq = result_iq.OrderBy(e => e.EventId);
+        else               result_iq = result_iq.OrderByDescending(e => e.EventId);
+
+
+        return await result_iq.ToListAsync();
+    }
+
+    public async Task<List<EventSummaryDto>> BuildSummaryEventsDto(
+        ApplicationDbContext context,
+        Organisation? org,
+        bool sortAscending = false)
+    {
+        // https://khalidabuhakmeh.com/ef-core-and-aspnet-core-cycle-issue-and-solution
+
+        // Jeśli token należy do organizacji, która utworzyła to wydarzenie,
+        // to zwróć także EventRegistrations. W przeciwnym razie niech będzie to
+        // puste pole.
+        IQueryable<EventSummaryDto> result_iq = context
+                .Events
+                .Select(e => new EventSummaryDto
+                {
+                    EventId = e.EventId,
+                    OrganisationId = e.OrganisationId,
+                    Organisation = e.Organisation!.Name,
+                    Title = e.Title,
+                    Description = e.Description ?? "",
+                    Location = e.Location,
+                    EventDate = e.EventDate,
+                    EventSkills = e
+                        .EventSkills
+                        .Select(es => new SkillSummaryDto
+                        {
+                            SkillId = es.SkillId,
+                            SkillName = es.Skill!.Name
+                        }).ToList(),
+                    EventRegistrations = e.Organisation == org ?
+                        e.EventRegistrations
+                        .Select(er => new EventRegistrationDto
+                        {
+                            EventId = er.EventId,
+                            UserId = er.UserId,
+                            UserName = er.User!.FirstName + " " + er.User.LastName,
+                            RegisteredAt = er.RegisteredAt
+                        }).ToList() : null!
+                });
+
+        if (sortAscending) result_iq = result_iq.OrderBy(e => e.EventId);
+        else               result_iq = result_iq.OrderByDescending(e => e.EventId);
+
+        return await result_iq.ToListAsync();
+    }
+
 }

WebApp/Endpoints/SkillsEndpoints.cs

@@ -0,0 +1,26 @@
+using Microsoft.EntityFrameworkCore;
+using WebApp.Data;
+using WebApp.Mapping;
+
+namespace WebApp.Endpoints;
+
+public static class SkillsEndpoints
+{
+    const string GetSkillEndpointName = "GetSkill";
+
+    public static RouteGroupBuilder MapSkillsEndpoints(this WebApplication app)
+    {
+        var group = app.MapGroup("api/skills").WithParameterValidation();
+
+        // GET /skills
+        group.MapGet("/",
+            async (ApplicationDbContext dbContext) =>
+            await dbContext.Skills
+                           .OrderBy(Sk => Sk.SkillId)
+                           .Select(Sk => Sk.ToSkillSummaryDto()) // SkillSummaryDto
+                           .AsNoTracking()
+                           .ToListAsync());
+
+        return group;
+    }
+}

WebApp/Mapping/EventMapping.cs

@@ -1,4 +1,4 @@
-using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore;
 using WebApp.DTOs;
 using WebApp.Entities;
 
@@ -34,44 +34,83 @@ public static class EventMapping
 
     public static EventSummaryDto ToEventSummaryDto(this Event myEvent)
     {
-        return new EventSummaryDto(
-            myEvent.EventId,
-            myEvent.Organisation!.Name,
-            myEvent.OrganisationId,
-            myEvent.Title,
-            myEvent.Description,
-            myEvent.Location,
-            myEvent.EventDate,
-            myEvent.EventSkills,
-            myEvent.EventRegistrations
-        );
+
+        List<SkillSummaryDto>      ssdto = new List<SkillSummaryDto>();
+        List<EventRegistrationDto> erdto = new List<EventRegistrationDto>();
+
+        foreach (EventSkill es in myEvent.EventSkills)
+        {
+            ssdto.Add(es.ToSkillSummaryDto());
+        }
+
+        foreach (EventRegistration er in myEvent.EventRegistrations)
+        {
+            erdto.Add(er.ToEventRegistrationDto());
+        }
+
+        return new EventSummaryDto {
+            EventId            = myEvent.EventId,
+            Organisation       = myEvent.Organisation!.Name,
+            OrganisationId     = myEvent.OrganisationId,
+            Title              = myEvent.Title,
+            Description        = myEvent.Description ?? "",
+            Location           = myEvent.Location,
+            EventDate          = myEvent.EventDate,
+            EventSkills        = ssdto,
+            EventRegistrations = erdto
+        };
     }
     public static EventSummaryNoErDto ToEventSummaryNoErDto(this Event myEvent)
     {
+
         return new EventSummaryNoErDto(
             myEvent.EventId,
             myEvent.Organisation!.Name,
             myEvent.OrganisationId,
             myEvent.Title,
-            myEvent.Description,
+            myEvent.Description ?? "",
             myEvent.Location,
             myEvent.EventDate,
             myEvent.EventSkills
         );
     }
 
+    public static EventRegistrationDto ToEventRegistrationDto(this EventRegistration myER)
+    {
+
+        return new EventRegistrationDto {
+            EventId      = myER.EventId,
+            UserId       = myER.UserId,
+            UserName     = myER.User!.FirstName + " " + myER.User!.LastName,
+            RegisteredAt = myER.RegisteredAt
+        };
+    }
+
     public static EventDetailsDto ToEventDetailsDto(this Event myEvent)
     {
-        return new EventDetailsDto(
-            myEvent.EventId,
-            myEvent.OrganisationId,
-            myEvent.Organisation.Name,
-            myEvent.Title,
-            myEvent.Description,
-            myEvent.Location,
-            myEvent.EventDate,
-            myEvent.EventSkills,
-            myEvent.EventRegistrations
-        );
+        List<SkillSummaryDto>      ssdto = new List<SkillSummaryDto>();
+        List<EventRegistrationDto> erdto = new List<EventRegistrationDto>();
+
+        foreach (EventSkill es in myEvent.EventSkills)
+        {
+            ssdto.Add(es.ToSkillSummaryDto());
+        }
+
+        foreach (EventRegistration er in myEvent.EventRegistrations)
+        {
+            erdto.Add(er.ToEventRegistrationDto());
+        }
+
+        return new EventDetailsDto {
+            EventId            = myEvent.EventId,
+            OrganisationId     = myEvent.OrganisationId,
+            OrganisationName   = myEvent.Organisation!.Name,
+            Title              = myEvent.Title,
+            Description        = myEvent.Description ?? "",
+            Location           = myEvent.Location,
+            EventDate          = myEvent.EventDate,
+            EventSkills        = ssdto,
+            EventRegistrations = erdto
+        };
     }
-}
+}

WebApp/Mapping/EventSkillMapping.cs

@@ -0,0 +1,24 @@
+using WebApp.DTOs;
+using WebApp.Entities;
+
+namespace WebApp.Mapping;
+
+public static class EventSkillMapping
+{
+    public static EventSkill ToEventSkillEntity(this SingleSkillDto SSDto, int eid)
+    {
+        return new EventSkill()
+        {
+            EventId = eid,
+            SkillId = SSDto.Skill,
+        };
+    }
+
+    public static SkillSummaryDto ToSkillSummaryDto(this EventSkill es)
+    {
+        return new SkillSummaryDto{
+            SkillId   = es.SkillId,
+            SkillName = es.Skill.Name
+        };
+    }
+}

WebApp/Mapping/SkillMapping.cs

@@ -1,4 +1,4 @@
-using WebApp.DTOs;
+using WebApp.DTOs;
 using WebApp.Entities;
 
 namespace WebApp.Mapping
@@ -16,10 +16,10 @@ namespace WebApp.Mapping
 
         public static SkillSummaryDto ToSkillSummaryDto(this Skill s)
         {
-            return new SkillSummaryDto(
-                s.SkillId,
-                s.Name
-            );
+            return new SkillSummaryDto {
+                SkillId   = s.SkillId,
+                SkillName = s.Name
+            };
         }
     }
 }

WebApp/Mapping/VolunteerSkillMapping.cs

@@ -1,17 +1,16 @@
-using WebApp.DTOs;
+using WebApp.DTOs;
 using WebApp.Entities;
 
-namespace WebApp.Mapping
+namespace WebApp.Mapping;
+
+public static class VolunteerSkillMapping
 {
-    public static class VolunteerSkillMapping
+    public static VolunteerSkill ToVolunteerSkillEntity(this SingleSkillDto SSDto, int uid)
     {
-        public static VolunteerSkill ToVolunteerSkillEntity(this SingleSkillDto SSDto, int uid)
+        return new VolunteerSkill()
         {
-            return new VolunteerSkill()
-            {
-                UserId = uid,
-                SkillId = SSDto.Skill,
-            };
-        }
+            UserId = uid,
+            SkillId = SSDto.Skill,
+        };
     }
 }

WebApp/Program.cs

@@ -53,5 +53,7 @@ app.UseRouting(); // Enables routing to match incoming request to endpoints
 app.MapEventsEndpoints();
 app.MapOrganizationsEndpoints();
 app.MapAuthEndpoints();
+app.MapSkillsEndpoints();
+app.MapEventsRegistrationEndpoints();
 
 app.Run();

WebApp/ts/eventList.ts

@@ -1,4 +1,4 @@
-import { getEvent, getMyAccount, unhideElementById } from './generalUseHelpers.js';
+import { getEvent, getMyAccount, unhideElementById } from './generalUseHelpers.js';
 
 var isAscending: boolean = false;
 
@@ -57,10 +57,17 @@ async function loadEvents(org_id: number, evs?: Promise<any>) {
             //card.innerHTML = `
             //    <span>${ev.title}</span>`
             // Do odkomentowania kiedy widok podglądu wydarzeń będzie gotowy
+            let formattedDate: string = new Intl.DateTimeFormat('en-US', {
+                weekday: 'long', // "Monday"
+                year: 'numeric', // "2023"
+                month: 'long', // "December"
+                day: 'numeric' // "1"
+            }).format(ev.eventDate);
+            console.log(formattedDate);
             card.innerHTML = `
                 <span>
                     <a href="/view.html?event=${ev.eventId}" style="color: #2898BD">${ev.title}</a>
-                    <p style="margin: 0">${ev.organisation}</p>
+                    <p style="margin: 0">${ev.organisation} | ${ev.location} | ${formattedDate}</p>
                 </span>`
             if (org_id == ev.organisationId) {
                 card.innerHTML += `
@@ -118,4 +125,4 @@ document.addEventListener("DOMContentLoaded", async () => {
             loadEvents(org_id, searchResults);
         }
     })
-});
+});

WebApp/ts/eventView.ts

@@ -1,4 +1,4 @@
-import { getEvent, getMyAccount, unhideElementById } from './generalUseHelpers.js';
+import { getEvent, getMyAccount, unhideElementById, getMyRegisteredEventIds } from './generalUseHelpers.js';
 
 const queryString = window.location.search;
 const urlParams = new URLSearchParams(queryString);
@@ -9,6 +9,8 @@ document.addEventListener("DOMContentLoaded", async () => {
     var container   = document.getElementById("mainContainer");
     const modifyBtn = document.getElementById("editBtn");
     const removeBtn = document.getElementById("removeBtn");
+    const applyBtn = document.getElementById("applyBtn");
+    const leaveBtn = document.getElementById("leaveBtn");
     var org_id: number = -1;
 
     try {
@@ -28,11 +30,11 @@ document.addEventListener("DOMContentLoaded", async () => {
     try {
         if (eventId) thisEvent = await getEvent(eventId);
     } catch (err) {
-        if (container !== null) container.innerHTML = `<p class="text-danger">To wydarzenie nie istnieje! <a href="/" style="color:#2898BD;">Powrót -></a></p>`;
+        if (container !== null) container.innerHTML = `<p class="text-danger">To wydarzenie nie istnieje! <a href="/" style="color:#2898BD;">Powr<EFBFBD>t -></a></p>`;
     }
 
     if (thisEvent == null) {
-        if (container !== null) container.innerHTML = `<p class="text-danger">B³¹d we wczytywaniu wydarzenia. <a href="/" style="color:#2898BD;">Powrót -></a></p>`;
+        if (container !== null) container.innerHTML = `<p class="text-danger">Błąd we wczytywaniu wydarzenia. <a href="/" style="color:#2898BD;">Powrót -></a></p>`;
     } else {
 
         const titleText     = document.getElementById(    "titleText") as HTMLElement;
@@ -51,13 +53,27 @@ document.addEventListener("DOMContentLoaded", async () => {
         organizerText.innerHTML = "Organized by: " + thisEvent.organisationName;
 
         if (org_id == thisEvent.organisationId) {
-            // U¿ytkownik jest organizacj¹, która
-            // stworzy³a to wydarzenie
+            // Użytkownik jest organizacją, która
+            // stworzyła to wydarzenie
             unhideElementById(document, "editBtn");
             unhideElementById(document, "removeBtn");
         } else if (org_id == -1) {
-            // U¿ytkownik jest wolontariuszem
-            unhideElementById(document, "applyBtn");
+            // Użytkownik jest wolontariuszem
+            try {
+                const registeredIds = await getMyRegisteredEventIds();
+                const isRegistered = registeredIds.includes(Number(eventId));
+
+                if (isRegistered) {
+                    unhideElementById(document, "leaveBtn");
+                } else {
+                    unhideElementById(document, "applyBtn");
+                }
+            } catch {
+                unhideElementById(document, "applyBtn");
+                (applyBtn as HTMLButtonElement).textContent = "log in to apply";
+                (applyBtn as HTMLButtonElement).disabled = true;
+            }
+            
         }
 
         unhideElementById(document, "mainContainer");
@@ -76,7 +92,7 @@ document.addEventListener("DOMContentLoaded", async () => {
             if (!confirmed) return;
 
             try {
-                // Wysy³a ¿¹danie DELETE do API
+                // Wysyła żądanie DELETE do API
                 const response = await fetch(`/api/events/${eventId}`, {
                     method: "DELETE"
                 });
@@ -94,4 +110,59 @@ document.addEventListener("DOMContentLoaded", async () => {
         });
     }
 
-});
+    if (applyBtn) {
+        applyBtn.addEventListener("click", async (e) => {
+            try {
+                const response = await fetch(`/api/events/join/${eventId}`, {
+                    method: "POST",
+                    headers: {
+                        "Content-Type": "application/json"
+                    },
+                });
+
+                const result: {
+                    success: boolean;
+                    error_msg?: string;
+                } = await response.json();
+
+                if (result.success) {
+                    window.location.href = `/view.html?event=${eventId}`;
+                } else {
+                    alert(`Error: ${result.error_msg ?? "Unknown error occurred."}`);
+                }
+            } catch (error) {
+                console.error("Failed to apply:", error);
+                alert("Failed to apply.");
+            }
+        });
+    }
+
+    if (leaveBtn) {
+        leaveBtn.addEventListener("click", async (e) => {
+            try {
+                const response = await fetch(`/api/events/leave/${eventId}`, {
+                    method: "POST",
+                    headers: {
+                        "Content-Type": "application/json"
+                    },
+                });
+
+                const result: {
+                    success: boolean;
+                    error_msg?: string;
+                } = await response.json();
+
+                if (result.success) {
+                    window.location.href = `/view.html?event=${eventId}`;
+                } else {
+                    alert(`Error: ${result.error_msg ?? "Unknown error occurred."}`);
+                }
+
+            } catch (error) {
+                console.error("Failed to leave:", error)
+                alert("Failed to leave.")
+            }
+        });
+    }
+
+});

WebApp/ts/generalUseHelpers.ts

@@ -36,9 +36,20 @@ export async function getEvent(id: string): Promise<EventData> {
 export async function getMyAccount(): Promise<MyAccount> {
     const res = await fetch("/api/auth/my_account");
     if (!res.ok) {
-        throw Error("U¿ytkownik niezalogowany!");
+        throw Error("Użytkownik niezalogowany!");
     }
     const data = await res.json();
     return data;
 }
 
+export async function getMyRegisteredEventIds(): Promise<number[]> {
+    const res = await fetch("/api/auth/my_events");
+
+    if (!res.ok) {
+        throw Error("Użytkownik niezalogowany!");
+    }
+
+    const events = await res.json();
+
+    return events.map((event: { eventId: number }) => event.eventId);
+}

WebApp/wwwroot/js/eventList.js

@@ -59,13 +59,18 @@ function loadEvents(org_id, evs) {
             for (const ev of events) {
                 const card = document.createElement("div");
                 card.className = "event-card filled";
-                //card.innerHTML = `
-                //    <span>${ev.title}</span>`
-                // Do odkomentowania kiedy widok podglądu wydarzeń będzie gotowy
+
+                let formattedDate = new Intl.DateTimeFormat('en-US', {
+                    weekday: 'long',
+                    year: 'numeric',
+                    month: 'long',
+                    day: 'numeric' // "1"
+                }).format(new Date(ev.eventDate));
+
                 card.innerHTML = `
                 <span>
                     <a href="/view.html?event=${ev.eventId}" style="color: #2898BD">${ev.title}</a>
-                    <p style="margin: 0">${ev.organisation}</p>
+                    <p style="margin: 0">👥 ${ev.organisation} | 📍 ${ev.location} | 📅 ${formattedDate}</p>
                 </span>`;
                 if (org_id == ev.organisationId) {
                     card.innerHTML += `

WebApp/wwwroot/js/eventView.js

@@ -7,7 +7,7 @@ var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, ge
         step((generator = generator.apply(thisArg, _arguments || [])).next());
     });
 };
-import { getEvent, getMyAccount, unhideElementById } from './generalUseHelpers.js';
+import { getEvent, getMyAccount, unhideElementById, getMyRegisteredEventIds } from './generalUseHelpers.js';
 const queryString = window.location.search;
 const urlParams = new URLSearchParams(queryString);
 const eventId = urlParams.get('event');
@@ -15,6 +15,8 @@ document.addEventListener("DOMContentLoaded", () => __awaiter(void 0, void 0, vo
     var container = document.getElementById("mainContainer");
     const modifyBtn = document.getElementById("editBtn");
     const removeBtn = document.getElementById("removeBtn");
+    const applyBtn = document.getElementById("applyBtn");
+    const leaveBtn = document.getElementById("leaveBtn");
     var org_id = -1;
     try {
         var user = yield getMyAccount();
@@ -36,7 +38,7 @@ document.addEventListener("DOMContentLoaded", () => __awaiter(void 0, void 0, vo
     }
     catch (err) {
         if (container !== null)
-            container.innerHTML = `<p class="text-danger">To wydarzenie nie istnieje! <a href="/" style="color:#2898BD;">Powrót -></a></p>`;
+            container.innerHTML = `<p class="text-danger">To wydarzenie nie istnieje! <a href="/" style="color:#2898BD;">Powr<EFBFBD>t -></a></p>`;
     }
     if (thisEvent == null) {
         if (container !== null)
@@ -63,7 +65,21 @@ document.addEventListener("DOMContentLoaded", () => __awaiter(void 0, void 0, vo
         }
         else if (org_id == -1) {
             // Użytkownik jest wolontariuszem
-            unhideElementById(document, "applyBtn");
+            try {
+                const registeredIds = yield getMyRegisteredEventIds();
+                const isRegistered = registeredIds.includes(Number(eventId));
+                if (isRegistered) {
+                    unhideElementById(document, "leaveBtn");
+                }
+                else {
+                    unhideElementById(document, "applyBtn");
+                }
+            }
+            catch (_b) {
+                unhideElementById(document, "applyBtn");
+                applyBtn.textContent = "log in to apply";
+                applyBtn.disabled = true;
+            }
         }
         unhideElementById(document, "mainContainer");
     }
@@ -96,4 +112,52 @@ document.addEventListener("DOMContentLoaded", () => __awaiter(void 0, void 0, vo
             }
         }));
     }
+    if (applyBtn) {
+        applyBtn.addEventListener("click", (e) => __awaiter(void 0, void 0, void 0, function* () {
+            var _c;
+            try {
+                const response = yield fetch(`/api/events/join/${eventId}`, {
+                    method: "POST",
+                    headers: {
+                        "Content-Type": "application/json"
+                    },
+                });
+                const result = yield response.json();
+                if (result.success) {
+                    window.location.href = `/view.html?event=${eventId}`;
+                }
+                else {
+                    alert(`Error: ${(_c = result.error_msg) !== null && _c !== void 0 ? _c : "Unknown error occurred."}`);
+                }
+            }
+            catch (error) {
+                console.error("Failed to apply:", error);
+                alert("Failed to apply.");
+            }
+        }));
+    }
+    if (leaveBtn) {
+        leaveBtn.addEventListener("click", (e) => __awaiter(void 0, void 0, void 0, function* () {
+            var _d;
+            try {
+                const response = yield fetch(`/api/events/leave/${eventId}`, {
+                    method: "POST",
+                    headers: {
+                        "Content-Type": "application/json"
+                    },
+                });
+                const result = yield response.json();
+                if (result.success) {
+                    window.location.href = `/view.html?event=${eventId}`;
+                }
+                else {
+                    alert(`Error: ${(_d = result.error_msg) !== null && _d !== void 0 ? _d : "Unknown error occurred."}`);
+                }
+            }
+            catch (error) {
+                console.error("Failed to leave:", error);
+                alert("Failed to leave.");
+            }
+        }));
+    }
 }));

WebApp/wwwroot/js/generalUseHelpers.js

@@ -29,9 +29,19 @@ export function getMyAccount() {
     return __awaiter(this, void 0, void 0, function* () {
         const res = yield fetch("/api/auth/my_account");
         if (!res.ok) {
-            throw Error("U<EFBFBD>ytkownik niezalogowany!");
+            throw Error("Użytkownik niezalogowany!");
         }
         const data = yield res.json();
         return data;
     });
 }
+export function getMyRegisteredEventIds() {
+    return __awaiter(this, void 0, void 0, function* () {
+        const res = yield fetch("/api/auth/my_events");
+        if (!res.ok) {
+            throw Error("Użytkownik niezalogowany!");
+        }
+        const events = yield res.json();
+        return events.map((event) => event.eventId);
+    });
+}

WebApp/wwwroot/login.html

@@ -1,4 +1,4 @@
-<!DOCTYPE html>
+<!DOCTYPE html>
 <html>
 <head>
     <meta charset="UTF-8">
@@ -68,12 +68,16 @@
                     <input type="password" id="password" class="form-control input-field" required />
                 </div>
 
-                <br/>
+                <br />
 
                 <button id="logInBtn" class="button" type="submit">
                     <span>Log in</span>
                     <span>&#11166;</span>
                 </button>
+                <button id="signUpBtn" class="button" type="button" onclick="alert('Coming soon!')">
+                    <span>Sign up</span>
+                    <span>&#11166;</span>
+                </button>
                 <p id="message" style="color: red;"></p>
 
             </form>

WebApp/wwwroot/modify.html

@@ -80,6 +80,7 @@
 
         <script type="module" src="/js/eventModify.js"></script>
         <script type="module" src="/js/generalUseHelpers.js"></script>
+        <script type="module" src="/js/auth.js"></script>
 </body>
 
 

WebApp/wwwroot/view.html

@@ -1,4 +1,4 @@
-<!DOCTYPE html>
+<!DOCTYPE html>
 <html lang="pl">
 <head>
     <meta charset="UTF-8">
@@ -64,6 +64,7 @@
             <h4 id="descText"></h4><br />
 
             <button id="applyBtn" class="button hidden-before-load"><span>Apply</span><span>&#11166;</span></button>
+            <button id="leaveBtn" class="button hidden-before-load"><span>Leave</span><span>&#11166;</span></button>
             <button id="editBtn" class="button hidden-before-load"><span>Modify</span><span>&#11166;</span></button>
             <button id="removeBtn" class="button hidden-before-load" style="background-color: red;"><span>Remove permanently</span><span>&#11166;</span></button>