InvitationService.cs
7,142 bytes
| 1 | using System.Security.Cryptography; |
|---|---|
| 2 | using SplitApp.WebApp.Application.DTO; |
| 3 | using SplitApp.WebApp.Application.Mappers; |
| 4 | using SplitApp.Modules.Trips.Domain.Entities; |
| 5 | using SplitApp.Modules.Trips.Domain.Enums; |
| 6 | using SplitApp.Modules.Expenses.Domain.Entities; |
| 7 | using SplitApp.Modules.Expenses.Domain.Enums; |
| 8 | using SplitApp.Modules.Users.Domain.Entities; |
| 9 | using SplitApp.WebApp.Application.Contracts; |
| 10 | |
| 11 | namespace SplitApp.WebApp.Application.Services; |
| 12 | |
| 13 | public class InvitationService : IInvitationService |
| 14 | { |
| 15 | private readonly IAppUnitOfWork _uow; |
| 16 | |
| 17 | public InvitationService(IAppUnitOfWork uow) |
| 18 | { |
| 19 | _uow = uow; |
| 20 | } |
| 21 | |
| 22 | public async Task<TripInvitationBllDto> CreateInvitationAsync(Guid tripId, Guid userId) |
| 23 | { |
| 24 | var token = Convert.ToBase64String(RandomNumberGenerator.GetBytes(32)) |
| 25 | .Replace("+", "-").Replace("/", "_").TrimEnd('='); |
| 26 | |
| 27 | var invitation = new TripInvitation |
| 28 | { |
| 29 | Id = Guid.NewGuid(), |
| 30 | TripId = tripId, |
| 31 | InvitedByUserId = userId, |
| 32 | Token = token, |
| 33 | Status = EInvitationStatus.Pending, |
| 34 | ExpiresAt = DateTime.UtcNow.AddDays(7) |
| 35 | }; |
| 36 | |
| 37 | _uow.TripInvitations.Add(invitation); |
| 38 | await _uow.SaveChangesAsync(); |
| 39 | |
| 40 | return InvitationBllDtoFactory.Create(invitation); |
| 41 | } |
| 42 | |
| 43 | public async Task<bool> AcceptInvitationAsync(string token, Guid userId) |
| 44 | { |
| 45 | var invitation = await _uow.TripInvitations.GetByTokenAsync(token); |
| 46 | if (invitation == null) return false; |
| 47 | |
| 48 | if (invitation.Status != EInvitationStatus.Pending || invitation.ExpiresAt < DateTime.UtcNow) |
| 49 | return false; |
| 50 | |
| 51 | // Check if already a participant |
| 52 | var participants = (await _uow.TripParticipants.GetByTripIdAsync(invitation.TripId)).ToList(); |
| 53 | var existingParticipant = participants.FirstOrDefault(tp => tp.UserId == userId); |
| 54 | |
| 55 | var allParticipants = await _uow.TripParticipants.GetAllAsync(); |
| 56 | var inactiveParticipant = allParticipants |
| 57 | .FirstOrDefault(tp => tp.TripId == invitation.TripId && tp.UserId == userId && !tp.IsActive); |
| 58 | |
| 59 | if (existingParticipant != null) |
| 60 | { |
| 61 | // Already an active participant |
| 62 | } |
| 63 | else if (inactiveParticipant != null) |
| 64 | { |
| 65 | inactiveParticipant.IsActive = true; |
| 66 | inactiveParticipant.LeftAt = null; |
| 67 | _uow.TripParticipants.Update(inactiveParticipant); |
| 68 | } |
| 69 | else |
| 70 | { |
| 71 | var participant = new TripParticipant |
| 72 | { |
| 73 | Id = Guid.NewGuid(), |
| 74 | TripId = invitation.TripId, |
| 75 | UserId = userId, |
| 76 | Role = EParticipantRole.Participant, |
| 77 | JoinedAt = DateTime.UtcNow, |
| 78 | IsActive = true |
| 79 | }; |
| 80 | _uow.TripParticipants.Add(participant); |
| 81 | } |
| 82 | |
| 83 | invitation.Status = EInvitationStatus.Accepted; |
| 84 | invitation.RespondedAt = DateTime.UtcNow; |
| 85 | _uow.TripInvitations.Update(invitation); |
| 86 | |
| 87 | await _uow.SaveChangesAsync(); |
| 88 | |
| 89 | return true; |
| 90 | } |
| 91 | |
| 92 | public async Task<(TripInvitationBllDto? invitation, string? errorCode)> CreateInvitationGuardedAsync(Guid tripId, Guid userId) |
| 93 | { |
| 94 | if (!await _uow.TripParticipants.IsOrganizerAsync(tripId, userId)) |
| 95 | return (null, "forbidden"); |
| 96 | var invitation = await CreateInvitationAsync(tripId, userId); |
| 97 | return (invitation, null); |
| 98 | } |
| 99 | |
| 100 | public async Task<TripInvitationBllDto?> GetByIdAsync(Guid id) |
| 101 | { |
| 102 | var entity = await _uow.TripInvitations.GetByIdAsync(id); |
| 103 | return entity == null ? null : InvitationBllDtoFactory.Create(entity); |
| 104 | } |
| 105 | |
| 106 | public async Task<TripInvitationBllDto?> GetByTokenAsync(string token) |
| 107 | { |
| 108 | var entity = await _uow.TripInvitations.GetByTokenAsync(token); |
| 109 | return entity == null ? null : InvitationBllDtoFactory.Create(entity); |
| 110 | } |
| 111 | |
| 112 | public async Task<List<TripInvitationBllDto>> GetPendingByTripIdAsync(Guid tripId, Guid userId) |
| 113 | { |
| 114 | if (!await _uow.TripParticipants.IsParticipantAsync(tripId, userId)) |
| 115 | return new List<TripInvitationBllDto>(); |
| 116 | var invitations = await _uow.TripInvitations.GetPendingByTripIdAsync(tripId); |
| 117 | return InvitationBllDtoFactory.CreateList(invitations); |
| 118 | } |
| 119 | |
| 120 | public async Task<(bool success, string? errorCode)> AcceptInvitationGuardedAsync(string token, Guid userId) |
| 121 | { |
| 122 | var invitation = await _uow.TripInvitations.GetByTokenAsync(token); |
| 123 | if (invitation == null) return (false, "notfound"); |
| 124 | |
| 125 | if (invitation.Status != EInvitationStatus.Pending) |
| 126 | return (false, "not-pending"); |
| 127 | |
| 128 | if (invitation.ExpiresAt < DateTime.UtcNow) |
| 129 | { |
| 130 | invitation.Status = EInvitationStatus.Expired; |
| 131 | _uow.TripInvitations.Update(invitation); |
| 132 | await _uow.SaveChangesAsync(); |
| 133 | return (false, "expired"); |
| 134 | } |
| 135 | |
| 136 | if (await _uow.TripParticipants.IsParticipantAsync(invitation.TripId, userId)) |
| 137 | return (false, "already-participant"); |
| 138 | |
| 139 | var accepted = await AcceptInvitationAsync(token, userId); |
| 140 | if (!accepted) return (false, "failed"); |
| 141 | |
| 142 | return (true, null); |
| 143 | } |
| 144 | |
| 145 | public async Task<(bool success, string? errorCode)> RevokeInvitationAsync(Guid invitationId, Guid tripId, Guid userId) |
| 146 | { |
| 147 | if (!await _uow.TripParticipants.IsOrganizerAsync(tripId, userId)) |
| 148 | return (false, "forbidden"); |
| 149 | |
| 150 | var invitation = await _uow.TripInvitations.GetByIdAsync(invitationId); |
| 151 | if (invitation == null || invitation.TripId != tripId) return (false, "notfound"); |
| 152 | |
| 153 | if (invitation.Status == EInvitationStatus.Pending) |
| 154 | { |
| 155 | invitation.Status = EInvitationStatus.Revoked; |
| 156 | invitation.RespondedAt = DateTime.UtcNow; |
| 157 | _uow.TripInvitations.Update(invitation); |
| 158 | await _uow.SaveChangesAsync(); |
| 159 | } |
| 160 | |
| 161 | return (true, null); |
| 162 | } |
| 163 | |
| 164 | public async Task<(bool success, string? errorCode)> RevokeInvitationByTokenAsync(string token, Guid userId) |
| 165 | { |
| 166 | var invitation = await _uow.TripInvitations.GetByTokenAsync(token); |
| 167 | if (invitation == null) return (false, "notfound"); |
| 168 | |
| 169 | if (!await _uow.TripParticipants.IsOrganizerAsync(invitation.TripId, userId)) |
| 170 | return (false, "forbidden"); |
| 171 | |
| 172 | invitation.Status = EInvitationStatus.Revoked; |
| 173 | invitation.RespondedAt = DateTime.UtcNow; |
| 174 | _uow.TripInvitations.Update(invitation); |
| 175 | await _uow.SaveChangesAsync(); |
| 176 | return (true, null); |
| 177 | } |
| 178 | |
| 179 | public async Task<(bool success, string? errorCode)> DeclineInvitationAsync(string token) |
| 180 | { |
| 181 | var invitation = await _uow.TripInvitations.GetByTokenAsync(token); |
| 182 | if (invitation == null) return (false, "notfound"); |
| 183 | |
| 184 | if (invitation.Status != EInvitationStatus.Pending) |
| 185 | return (false, "not-pending"); |
| 186 | |
| 187 | invitation.Status = EInvitationStatus.Declined; |
| 188 | invitation.RespondedAt = DateTime.UtcNow; |
| 189 | _uow.TripInvitations.Update(invitation); |
| 190 | await _uow.SaveChangesAsync(); |
| 191 | return (true, null); |
| 192 | } |
| 193 | } |
| 194 | |