using PostFundManagement.Application.Abstractions.Services;
using PostFundManagement.Application.Extensions;
using PostFundManagement.Application.Services.Shared;
using PostFundManagement.Domain;
using PostFundManagement.Domain.Models;
using PostFundManagement.Domain.Models.Security;
using Claim = PostFundManagement.Domain.Models.Security.Claim;

namespace PostFundManagement.Application.Services.Users;

public sealed class UserCacheService(UserService service, IDistributedCache cache,
    IFeatureManager featureManager) : ServiceCacheBase, IUserService
{
    public async Task<Result> AddUserClaimAsync(AddUserClaimRequest request, Guid userId, CancellationToken cancellationToken = default) =>
        await service.AddUserClaimAsync(request, userId, cancellationToken);

    public async Task<Result> AddUserRoleAsync(Guid targetUserId, Guid roleId, Guid userId, CancellationToken cancellationToken = default) =>
        await service.AddUserRoleAsync(targetUserId, roleId, userId, cancellationToken);

    public async Task<Result> CreateUserAsync(string tenantIdHash, string idNumberHash, CreateUserRequest request, Guid userId, CancellationToken cancellationToken = default) =>
        await service.CreateUserAsync(tenantIdHash, idNumberHash, request, userId, cancellationToken);

    public async Task<Result> DeleteUserClaimAsync(string claimIdHash, Guid targetUserId, Guid userId, CancellationToken cancellationToken = default) =>
        await service.DeleteUserClaimAsync(claimIdHash, targetUserId, userId, cancellationToken);

    public async Task<Result> DeleteUserRoleAsync(Guid targetUserId, Guid roleId, Guid userId, CancellationToken cancellationToken = default) =>
        await service.DeleteUserRoleAsync(targetUserId, roleId, userId, cancellationToken);

    public async Task<Result<Role[]>> GetSystemRolesAsync(Guid userId, CancellationToken cancellationToken = default) =>
        await Result.Try((Func<Task<Result<Role[]>>>)(async () =>
        {
            if (!await featureManager.IsEnabledAsync(ServiceCachingFeature))
                return await service.GetSystemRolesAsync(userId, cancellationToken);

            var cacheKey = HashService.ToMd5Hash($"getsystemroles-{userId}").Value;

            var cached = await cache.GetStringAsync(cacheKey, cancellationToken);

            if (string.IsNullOrWhiteSpace(cached))
            {
                var rolesResult = await service.GetSystemRolesAsync(userId, cancellationToken);

                if (rolesResult.IsFailed) return rolesResult;

                await cache.SetStringAsync(cacheKey, rolesResult.Value.ToJson(),
                    cacheOptions, cancellationToken);

                return rolesResult;
            }

            return Result.Ok(cached.FromJson<Role[]>());
        }));

    public async Task<Result<User>> GetUserAsync(Guid userId, CancellationToken cancellationToken) =>
        await Result.Try((Func<Task<Result<User>>>)(async () =>
        {
            if (!await featureManager.IsEnabledAsync(ServiceCachingFeature))
                return await service.GetUserAsync(userId, cancellationToken);

            var cacheKey = HashService.ToMd5Hash($"getuser-{userId}").Value;

            var cached = await cache.GetStringAsync(cacheKey, cancellationToken);

            if (string.IsNullOrWhiteSpace(cached))
            {
                var userResult = await service.GetUserAsync(userId, cancellationToken);

                if (userResult.IsFailed) return userResult;

                await cache.SetStringAsync(cacheKey, userResult.Value.ToJson(), cacheOptions, cancellationToken);

                return userResult;
            }

            return Result.Ok(cached.FromJson<User>());
        }));

    public async Task<Result<Claim[]>> GetUserClaimsAsync(Guid targetUserId, Guid userId, CancellationToken cancellationToken = default) =>
        await Result.Try((Func<Task<Result<Claim[]>>>)(async () =>
        {
            if (!await featureManager.IsEnabledAsync(ServiceCachingFeature))
                return await service.GetUserClaimsAsync(targetUserId, userId, cancellationToken);

            var cacheKey = HashService.ToMd5Hash($"getuserclaims-{userId}").Value;

            var cached = await cache.GetStringAsync(cacheKey, cancellationToken);

            if (string.IsNullOrWhiteSpace(cached))
            {
                var claimsResult = await service.GetUserClaimsAsync(targetUserId, userId, cancellationToken);

                if (claimsResult.IsFailed) return claimsResult;

                await cache.SetStringAsync(cacheKey, claimsResult.Value.ToJson(),
                    cacheOptions, cancellationToken);

                return claimsResult;
            }

            return Result.Ok(cached.FromJson<Claim[]>());
        }));

    public async Task<Result<Role[]>> GetUserRolesAsync(Guid targetUserId, Guid userId, CancellationToken cancellationToken = default) =>
        await Result.Try((Func<Task<Result<Role[]>>>)(async () =>
        {
            if (!await featureManager.IsEnabledAsync(ServiceCachingFeature))
                return await service.GetUserRolesAsync(targetUserId, userId, cancellationToken);

            var cacheKey = HashService.ToMd5Hash($"getuserroles-{userId}").Value;

            var cached = await cache.GetStringAsync(cacheKey, cancellationToken);

            if (string.IsNullOrWhiteSpace(cached))
            {
                var rolesResult = await service.GetUserRolesAsync(targetUserId, userId, cancellationToken);

                if (rolesResult.IsFailed) return rolesResult;

                await cache.SetStringAsync(cacheKey, rolesResult.Value.ToJson(),
                    cacheOptions, cancellationToken);

                return rolesResult;
            }

            return Result.Ok(cached.FromJson<Role[]>());
        }));

    public async Task<Result<User[]>> GetUsersAsync(Pagination pagination, UserFilterRequest request, CancellationToken cancellationToken = default) =>
        await Result.Try((Func<Task<Result<User[]>>>)(async () =>
        {
            if (!await featureManager.IsEnabledAsync(ServiceCachingFeature))
                return await service.GetUsersAsync(pagination, request, cancellationToken);

            var cacheKey = HashService.ToMd5Hash($"getusers-{pagination.Page}-{pagination.PageSize}-" +
                $"{request.Email}-{request.Status}-{request.SortBy}-{request.SortDescending}").Value;

            var cached = await cache.GetStringAsync(cacheKey, cancellationToken);

            if (string.IsNullOrWhiteSpace(cached))
            {
                var usersResult = await service.GetUsersAsync(pagination, request, cancellationToken);

                if (usersResult.IsFailed) return usersResult;

                await cache.SetStringAsync(cacheKey, usersResult.Value.ToJson(),
                    cacheOptions, cancellationToken);

                return usersResult;
            }

            return Result.Ok(cached.FromJson<User[]>());
        }));

    public async Task<Result> LogoutUserAsync(Guid targetUserId, Guid userId, CancellationToken cancellationToken = default) =>
        await service.LogoutUserAsync(targetUserId, userId, cancellationToken);

    public async Task<Result> SetUserLockoutAsync(Guid targetUserId, Guid userId, bool disable, CancellationToken cancellationToken = default) =>
        await service.SetUserLockoutAsync(targetUserId, userId, disable, cancellationToken);

    public async Task<Result> SyncUserAsync(Guid userId, string email, string role, CancellationToken cancellationToken = default) =>
        await service.SyncUserAsync(userId, email, role, cancellationToken);

    public async Task<Result> UpdateUserStatusAsync(Guid userId, ActivityStatus status, CancellationToken cancellationToken = default) =>
        await service.UpdateUserStatusAsync(userId, status, cancellationToken);
}