using Bit.Api.AdminConsole.Models.Request.Organizations;
using Bit.Api.AdminConsole.Models.Response.Organizations;
using Bit.Api.Models.Request.Organizations;
using Bit.Api.Models.Response;
using Bit.Api.Utilities;
using Bit.Api.Vault.AuthorizationHandlers.OrganizationUsers;
using Bit.Core;
using Bit.Core.AdminConsole.OrganizationFeatures.OrganizationUsers.Interfaces;
using Bit.Core.AdminConsole.Repositories;
using Bit.Core.Context;
using Bit.Core.Enums;
using Bit.Core.Exceptions;
using Bit.Core.Models.Business;
using Bit.Core.Models.Data.Organizations.OrganizationUsers;
using Bit.Core.Models.Data.Organizations.Policies;
using Bit.Core.OrganizationFeatures.OrganizationSubscriptions.Interface;
using Bit.Core.OrganizationFeatures.OrganizationUsers.Interfaces;
using Bit.Core.Repositories;
using Bit.Core.Services;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;

namespace Bit.Api.AdminConsole.Controllers;

[Route("organizations/{orgId}/users")]
[Authorize("Application")]
public class OrganizationUsersController : Controller
{
    private readonly IOrganizationRepository _organizationRepository;
    private readonly IOrganizationUserRepository _organizationUserRepository;
    private readonly IOrganizationService _organizationService;
    private readonly ICollectionRepository _collectionRepository;
    private readonly IGroupRepository _groupRepository;
    private readonly IUserService _userService;
    private readonly IPolicyRepository _policyRepository;
    private readonly ICurrentContext _currentContext;
    private readonly ICountNewSmSeatsRequiredQuery _countNewSmSeatsRequiredQuery;
    private readonly IUpdateSecretsManagerSubscriptionCommand _updateSecretsManagerSubscriptionCommand;
    private readonly IUpdateOrganizationUserGroupsCommand _updateOrganizationUserGroupsCommand;
    private readonly IAcceptOrgUserCommand _acceptOrgUserCommand;
    private readonly IFeatureService _featureService;
    private readonly IAuthorizationService _authorizationService;

    private bool UseFlexibleCollections => _featureService.IsEnabled(FeatureFlagKeys.FlexibleCollections, _currentContext);

    public OrganizationUsersController(
        IOrganizationRepository organizationRepository,
        IOrganizationUserRepository organizationUserRepository,
        IOrganizationService organizationService,
        ICollectionRepository collectionRepository,
        IGroupRepository groupRepository,
        IUserService userService,
        IPolicyRepository policyRepository,
        ICurrentContext currentContext,
        ICountNewSmSeatsRequiredQuery countNewSmSeatsRequiredQuery,
        IUpdateSecretsManagerSubscriptionCommand updateSecretsManagerSubscriptionCommand,
        IUpdateOrganizationUserGroupsCommand updateOrganizationUserGroupsCommand,
        IAcceptOrgUserCommand acceptOrgUserCommand,
        IFeatureService featureService,
        IAuthorizationService authorizationService)
    {
        _organizationRepository = organizationRepository;
        _organizationUserRepository = organizationUserRepository;
        _organizationService = organizationService;
        _collectionRepository = collectionRepository;
        _groupRepository = groupRepository;
        _userService = userService;
        _policyRepository = policyRepository;
        _currentContext = currentContext;
        _countNewSmSeatsRequiredQuery = countNewSmSeatsRequiredQuery;
        _updateSecretsManagerSubscriptionCommand = updateSecretsManagerSubscriptionCommand;
        _updateOrganizationUserGroupsCommand = updateOrganizationUserGroupsCommand;
        _acceptOrgUserCommand = acceptOrgUserCommand;
        _featureService = featureService;
        _authorizationService = authorizationService;
    }

    [HttpGet("{id}")]
    public async Task<OrganizationUserDetailsResponseModel> Get(string id, bool includeGroups = false)
    {
        var organizationUser = await _organizationUserRepository.GetDetailsByIdWithCollectionsAsync(new Guid(id));
        if (organizationUser == null || !await _currentContext.ManageUsers(organizationUser.Item1.OrganizationId))
        {
            throw new NotFoundException();
        }

        var response = new OrganizationUserDetailsResponseModel(organizationUser.Item1, organizationUser.Item2);

        if (includeGroups)
        {
            response.Groups = await _groupRepository.GetManyIdsByUserIdAsync(organizationUser.Item1.Id);
        }

        return response;
    }

    [HttpGet("")]
    public async Task<ListResponseModel<OrganizationUserUserDetailsResponseModel>> Get(Guid orgId, bool includeGroups = false, bool includeCollections = false)
    {
        var authorized = UseFlexibleCollections
            ? (await _authorizationService.AuthorizeAsync(User, OrganizationUserOperations.ReadAll(orgId))).Succeeded
            : await _currentContext.ViewAllCollections(orgId) ||
              await _currentContext.ViewAssignedCollections(orgId) ||
              await _currentContext.ManageGroups(orgId) ||
              await _currentContext.ManageUsers(orgId);
        if (!authorized)
        {
            throw new NotFoundException();
        }

        var organizationUsers = await _organizationUserRepository.GetManyDetailsByOrganizationAsync(orgId, includeGroups, includeCollections);
        var responseTasks = organizationUsers.Select(async o => new OrganizationUserUserDetailsResponseModel(o,
            await _userService.TwoFactorIsEnabledAsync(o)));
        var responses = await Task.WhenAll(responseTasks);
        return new ListResponseModel<OrganizationUserUserDetailsResponseModel>(responses);
    }

    [HttpGet("{id}/groups")]
    public async Task<IEnumerable<string>> GetGroups(string orgId, string id)
    {
        var organizationUser = await _organizationUserRepository.GetByIdAsync(new Guid(id));
        if (organizationUser == null || (!await _currentContext.ManageGroups(organizationUser.OrganizationId) &&
                                         !await _currentContext.ManageUsers(organizationUser.OrganizationId)))
        {
            throw new NotFoundException();
        }

        var groupIds = await _groupRepository.GetManyIdsByUserIdAsync(organizationUser.Id);
        var responses = groupIds.Select(g => g.ToString());
        return responses;
    }

    [HttpGet("{id}/reset-password-details")]
    public async Task<OrganizationUserResetPasswordDetailsResponseModel> GetResetPasswordDetails(string orgId, string id)
    {
        // Make sure the calling user can reset passwords for this org
        var orgGuidId = new Guid(orgId);
        if (!await _currentContext.ManageResetPassword(orgGuidId))
        {
            throw new NotFoundException();
        }

        var organizationUser = await _organizationUserRepository.GetByIdAsync(new Guid(id));
        if (organizationUser == null || !organizationUser.UserId.HasValue)
        {
            throw new NotFoundException();
        }

        // Retrieve data necessary for response (KDF, KDF Iterations, ResetPasswordKey)
        // TODO Reset Password - Revisit this and create SPROC to reduce DB calls
        var user = await _userService.GetUserByIdAsync(organizationUser.UserId.Value);
        if (user == null)
        {
            throw new NotFoundException();
        }

        // Retrieve Encrypted Private Key from organization
        var org = await _organizationRepository.GetByIdAsync(orgGuidId);
        if (org == null)
        {
            throw new NotFoundException();
        }

        return new OrganizationUserResetPasswordDetailsResponseModel(new OrganizationUserResetPasswordDetails(organizationUser, user, org));
    }

    [HttpPost("invite")]
    public async Task Invite(string orgId, [FromBody] OrganizationUserInviteRequestModel model)
    {
        var orgGuidId = new Guid(orgId);
        if (!await _currentContext.ManageUsers(orgGuidId))
        {
            throw new NotFoundException();
        }

        var userId = _userService.GetProperUserId(User);
        var result = await _organizationService.InviteUsersAsync(orgGuidId, userId.Value,
            new (OrganizationUserInvite, string)[] { (new OrganizationUserInvite(model.ToData()), null) });
    }

    [HttpPost("reinvite")]
    public async Task<ListResponseModel<OrganizationUserBulkResponseModel>> BulkReinvite(string orgId, [FromBody] OrganizationUserBulkRequestModel model)
    {
        var orgGuidId = new Guid(orgId);
        if (!await _currentContext.ManageUsers(orgGuidId))
        {
            throw new NotFoundException();
        }

        var userId = _userService.GetProperUserId(User);
        var result = await _organizationService.ResendInvitesAsync(orgGuidId, userId.Value, model.Ids);
        return new ListResponseModel<OrganizationUserBulkResponseModel>(
            result.Select(t => new OrganizationUserBulkResponseModel(t.Item1.Id, t.Item2)));
    }

    [HttpPost("{id}/reinvite")]
    public async Task Reinvite(string orgId, string id)
    {
        var orgGuidId = new Guid(orgId);
        if (!await _currentContext.ManageUsers(orgGuidId))
        {
            throw new NotFoundException();
        }

        var userId = _userService.GetProperUserId(User);
        await _organizationService.ResendInviteAsync(orgGuidId, userId.Value, new Guid(id));
    }

    [HttpPost("{organizationUserId}/accept-init")]
    public async Task AcceptInit(Guid orgId, Guid organizationUserId, [FromBody] OrganizationUserAcceptInitRequestModel model)
    {
        var user = await _userService.GetUserByPrincipalAsync(User);
        if (user == null)
        {
            throw new UnauthorizedAccessException();
        }

        await _organizationService.InitPendingOrganization(user.Id, orgId, model.Keys.PublicKey, model.Keys.EncryptedPrivateKey, model.CollectionName);
        await _acceptOrgUserCommand.AcceptOrgUserByEmailTokenAsync(organizationUserId, user, model.Token, _userService);
        await _organizationService.ConfirmUserAsync(orgId, organizationUserId, model.Key, user.Id, _userService);
    }

    [HttpPost("{organizationUserId}/accept")]
    public async Task Accept(Guid orgId, Guid organizationUserId, [FromBody] OrganizationUserAcceptRequestModel model)
    {
        var user = await _userService.GetUserByPrincipalAsync(User);
        if (user == null)
        {
            throw new UnauthorizedAccessException();
        }

        var masterPasswordPolicy = await _policyRepository.GetByOrganizationIdTypeAsync(orgId, PolicyType.ResetPassword);
        var useMasterPasswordPolicy = masterPasswordPolicy != null &&
                                          masterPasswordPolicy.Enabled &&
                                          masterPasswordPolicy.GetDataModel<ResetPasswordDataModel>().AutoEnrollEnabled;
        if (useMasterPasswordPolicy && string.IsNullOrWhiteSpace(model.ResetPasswordKey))
        {
            throw new BadRequestException(string.Empty, "Master Password reset is required, but not provided.");
        }

        await _acceptOrgUserCommand.AcceptOrgUserByEmailTokenAsync(organizationUserId, user, model.Token, _userService);

        if (useMasterPasswordPolicy)
        {
            await _organizationService.UpdateUserResetPasswordEnrollmentAsync(orgId, user.Id, model.ResetPasswordKey, user.Id);
        }
    }

    [HttpPost("{id}/confirm")]
    public async Task Confirm(string orgId, string id, [FromBody] OrganizationUserConfirmRequestModel model)
    {
        var orgGuidId = new Guid(orgId);
        if (!await _currentContext.ManageUsers(orgGuidId))
        {
            throw new NotFoundException();
        }

        var userId = _userService.GetProperUserId(User);
        var result = await _organizationService.ConfirmUserAsync(orgGuidId, new Guid(id), model.Key, userId.Value,
            _userService);
    }

    [HttpPost("confirm")]
    public async Task<ListResponseModel<OrganizationUserBulkResponseModel>> BulkConfirm(string orgId,
        [FromBody] OrganizationUserBulkConfirmRequestModel model)
    {
        var orgGuidId = new Guid(orgId);
        if (!await _currentContext.ManageUsers(orgGuidId))
        {
            throw new NotFoundException();
        }

        var userId = _userService.GetProperUserId(User);
        var results = await _organizationService.ConfirmUsersAsync(orgGuidId, model.ToDictionary(), userId.Value,
            _userService);

        return new ListResponseModel<OrganizationUserBulkResponseModel>(results.Select(r =>
            new OrganizationUserBulkResponseModel(r.Item1.Id, r.Item2)));
    }

    [HttpPost("public-keys")]
    public async Task<ListResponseModel<OrganizationUserPublicKeyResponseModel>> UserPublicKeys(string orgId, [FromBody] OrganizationUserBulkRequestModel model)
    {
        var orgGuidId = new Guid(orgId);
        if (!await _currentContext.ManageUsers(orgGuidId))
        {
            throw new NotFoundException();
        }

        var result = await _organizationUserRepository.GetManyPublicKeysByOrganizationUserAsync(orgGuidId, model.Ids);
        var responses = result.Select(r => new OrganizationUserPublicKeyResponseModel(r.Id, r.UserId, r.PublicKey)).ToList();
        return new ListResponseModel<OrganizationUserPublicKeyResponseModel>(responses);
    }

    [HttpPut("{id}")]
    [HttpPost("{id}")]
    public async Task Put(string orgId, string id, [FromBody] OrganizationUserUpdateRequestModel model)
    {
        var orgGuidId = new Guid(orgId);
        if (!await _currentContext.ManageUsers(orgGuidId))
        {
            throw new NotFoundException();
        }

        var organizationUser = await _organizationUserRepository.GetByIdAsync(new Guid(id));
        if (organizationUser == null || organizationUser.OrganizationId != orgGuidId)
        {
            throw new NotFoundException();
        }

        var userId = _userService.GetProperUserId(User);
        await _organizationService.SaveUserAsync(model.ToOrganizationUser(organizationUser), userId.Value,
            model.Collections?.Select(c => c.ToSelectionReadOnly()), model.Groups);
    }

    [HttpPut("{id}/groups")]
    [HttpPost("{id}/groups")]
    public async Task PutGroups(string orgId, string id, [FromBody] OrganizationUserUpdateGroupsRequestModel model)
    {
        var orgGuidId = new Guid(orgId);
        if (!await _currentContext.ManageUsers(orgGuidId))
        {
            throw new NotFoundException();
        }

        var organizationUser = await _organizationUserRepository.GetByIdAsync(new Guid(id));
        if (organizationUser == null || organizationUser.OrganizationId != orgGuidId)
        {
            throw new NotFoundException();
        }

        var loggedInUserId = _userService.GetProperUserId(User);
        await _updateOrganizationUserGroupsCommand.UpdateUserGroupsAsync(organizationUser, model.GroupIds.Select(g => new Guid(g)), loggedInUserId);
    }

    [HttpPut("{userId}/reset-password-enrollment")]
    public async Task PutResetPasswordEnrollment(Guid orgId, Guid userId, [FromBody] OrganizationUserResetPasswordEnrollmentRequestModel model)
    {
        var user = await _userService.GetUserByPrincipalAsync(User);
        if (user == null)
        {
            throw new UnauthorizedAccessException();
        }

        var callingUserId = user.Id;
        await _organizationService.UpdateUserResetPasswordEnrollmentAsync(
            orgId, userId, model.ResetPasswordKey, callingUserId);

        var orgUser = await _organizationUserRepository.GetByOrganizationAsync(orgId, user.Id);
        if (orgUser.Status == OrganizationUserStatusType.Invited)
        {
            await _acceptOrgUserCommand.AcceptOrgUserByOrgIdAsync(orgId, user, _userService);
        }
    }

    [HttpPut("{id}/reset-password")]
    public async Task PutResetPassword(string orgId, string id, [FromBody] OrganizationUserResetPasswordRequestModel model)
    {

        var orgGuidId = new Guid(orgId);

        // Calling user must have Manage Reset Password permission
        if (!await _currentContext.ManageResetPassword(orgGuidId))
        {
            throw new NotFoundException();
        }

        // Get the users role, since provider users aren't a member of the organization we use the owner check
        var orgUserType = await _currentContext.OrganizationOwner(orgGuidId)
            ? OrganizationUserType.Owner
            : _currentContext.Organizations?.FirstOrDefault(o => o.Id == orgGuidId)?.Type;
        if (orgUserType == null)
        {
            throw new NotFoundException();
        }

        var result = await _userService.AdminResetPasswordAsync(orgUserType.Value, orgGuidId, new Guid(id), model.NewMasterPasswordHash, model.Key);
        if (result.Succeeded)
        {
            return;
        }

        foreach (var error in result.Errors)
        {
            ModelState.AddModelError(string.Empty, error.Description);
        }

        await Task.Delay(2000);
        throw new BadRequestException(ModelState);
    }

    [HttpDelete("{id}")]
    [HttpPost("{id}/delete")]
    public async Task Delete(string orgId, string id)
    {
        var orgGuidId = new Guid(orgId);
        if (!await _currentContext.ManageUsers(orgGuidId))
        {
            throw new NotFoundException();
        }

        var userId = _userService.GetProperUserId(User);
        await _organizationService.DeleteUserAsync(orgGuidId, new Guid(id), userId.Value);
    }

    [HttpDelete("")]
    [HttpPost("delete")]
    public async Task<ListResponseModel<OrganizationUserBulkResponseModel>> BulkDelete(string orgId, [FromBody] OrganizationUserBulkRequestModel model)
    {
        var orgGuidId = new Guid(orgId);
        if (!await _currentContext.ManageUsers(orgGuidId))
        {
            throw new NotFoundException();
        }

        var userId = _userService.GetProperUserId(User);
        var result = await _organizationService.DeleteUsersAsync(orgGuidId, model.Ids, userId.Value);
        return new ListResponseModel<OrganizationUserBulkResponseModel>(result.Select(r =>
            new OrganizationUserBulkResponseModel(r.Item1.Id, r.Item2)));
    }

    [HttpPatch("{id}/revoke")]
    [HttpPut("{id}/revoke")]
    public async Task RevokeAsync(Guid orgId, Guid id)
    {
        await RestoreOrRevokeUserAsync(orgId, id, _organizationService.RevokeUserAsync);
    }

    [HttpPatch("revoke")]
    [HttpPut("revoke")]
    public async Task<ListResponseModel<OrganizationUserBulkResponseModel>> BulkRevokeAsync(Guid orgId, [FromBody] OrganizationUserBulkRequestModel model)
    {
        return await RestoreOrRevokeUsersAsync(orgId, model, _organizationService.RevokeUsersAsync);
    }

    [HttpPatch("{id}/restore")]
    [HttpPut("{id}/restore")]
    public async Task RestoreAsync(Guid orgId, Guid id)
    {
        await RestoreOrRevokeUserAsync(orgId, id, (orgUser, userId) => _organizationService.RestoreUserAsync(orgUser, userId, _userService));
    }

    [HttpPatch("restore")]
    [HttpPut("restore")]
    public async Task<ListResponseModel<OrganizationUserBulkResponseModel>> BulkRestoreAsync(Guid orgId, [FromBody] OrganizationUserBulkRequestModel model)
    {
        return await RestoreOrRevokeUsersAsync(orgId, model, (orgId, orgUserIds, restoringUserId) => _organizationService.RestoreUsersAsync(orgId, orgUserIds, restoringUserId, _userService));
    }

    [HttpPatch("enable-secrets-manager")]
    [HttpPut("enable-secrets-manager")]
    public async Task BulkEnableSecretsManagerAsync(Guid orgId,
        [FromBody] OrganizationUserBulkRequestModel model)
    {
        if (!await _currentContext.ManageUsers(orgId))
        {
            throw new NotFoundException();
        }

        var orgUsers = (await _organizationUserRepository.GetManyAsync(model.Ids))
            .Where(ou => ou.OrganizationId == orgId && !ou.AccessSecretsManager).ToList();
        if (orgUsers.Count == 0)
        {
            throw new BadRequestException("Users invalid.");
        }

        var additionalSmSeatsRequired = await _countNewSmSeatsRequiredQuery.CountNewSmSeatsRequiredAsync(orgId,
            orgUsers.Count);
        if (additionalSmSeatsRequired > 0)
        {
            var organization = await _organizationRepository.GetByIdAsync(orgId);
            var update = new SecretsManagerSubscriptionUpdate(organization, true)
                .AdjustSeats(additionalSmSeatsRequired);
            await _updateSecretsManagerSubscriptionCommand.UpdateSubscriptionAsync(update);
        }

        foreach (var orgUser in orgUsers)
        {
            orgUser.AccessSecretsManager = true;
        }

        await _organizationUserRepository.ReplaceManyAsync(orgUsers);
    }

    private async Task RestoreOrRevokeUserAsync(
        Guid orgId,
        Guid id,
        Func<Core.Entities.OrganizationUser, Guid?, Task> statusAction)
    {
        if (!await _currentContext.ManageUsers(orgId))
        {
            throw new NotFoundException();
        }

        var userId = _userService.GetProperUserId(User);
        var orgUser = await _organizationUserRepository.GetByIdAsync(id);
        if (orgUser == null || orgUser.OrganizationId != orgId)
        {
            throw new NotFoundException();
        }

        await statusAction(orgUser, userId);
    }

    private async Task<ListResponseModel<OrganizationUserBulkResponseModel>> RestoreOrRevokeUsersAsync(
        Guid orgId,
        OrganizationUserBulkRequestModel model,
        Func<Guid, IEnumerable<Guid>, Guid?, Task<List<Tuple<Core.Entities.OrganizationUser, string>>>> statusAction)
    {
        if (!await _currentContext.ManageUsers(orgId))
        {
            throw new NotFoundException();
        }

        var userId = _userService.GetProperUserId(User);
        var result = await statusAction(orgId, model.Ids, userId.Value);
        return new ListResponseModel<OrganizationUserBulkResponseModel>(result.Select(r =>
            new OrganizationUserBulkResponseModel(r.Item1.Id, r.Item2)));
    }
}