public async Task <object> GetProblemListAsync(int page)
{
if (page <= 0)
{
return(BadRequest());
}
bool viewAll = await UserModel.Authorization.CanViewAllProblemsAsync(HttpContext.Session.GetString("user"));
int maxPageCount = (await ProblemModel.GetProblemsCountAsync(viewAll) + problemsPerPage - 1) / problemsPerPage;
if (page > maxPageCount)
{
return(NotFound("I don't have so many problems..."));
}
return(new
{
TotalPages = maxPageCount,
ProblemList = await ProblemModel.GetProblemListAsync((page - 1) *problemsPerPage, problemsPerPage, viewAll),
});
}