using _2021_backend.Models;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Claims;
using System.Threading.Tasks;


namespace _2021_backend.Pages.Message
{
    public class IndexModel : PageModel
    {

        public readonly _2021_backend.Data.BackendContext Context;

        [BindProperty]
        public string Errmsg { get; set; }

        [BindProperty]
        public string SearchString { get; set; }

        [BindProperty]
        public bool showSend { get; set; }

        [BindProperty]
        public bool showReceive { get; set; }

        [BindProperty]
        public int pageid { get; set; }

        public static int pageSize = 30;
        public List<SMS> Messages { get; set; }

        public int PageCount { get; set; }

        public IndexModel(_2021_backend.Data.BackendContext context)
        {
            Context = context;
        }

        public IActionResult Construct(int PageId)
        {
            List<Guid> stus;
            IQueryable<Guid> q;
            if (!String.IsNullOrEmpty(SearchString)) q = from e in Context.Students where e.Name.Contains(SearchString) select e.Guid;
            else q = from e in Context.Students select e.Guid;
            stus = q.ToList();
            var q2 = from e in Context.SMS where stus.Contains(e.Host) select e;
            if (showReceive && !showSend) q2 = from e in q2 where e.Type == SMSType.Reply select e;
            else if (!showReceive && showSend) q2 = from e in q2 where e.Type != SMSType.Reply select e;
            Messages = q2.ToList();
            Messages.Sort((SMS a, SMS b) => b.SendTime.CompareTo(a.SendTime));


            int cnt = Messages.Count;
            PageCount = (int)Math.Ceiling((double)cnt / (double)pageSize);
            if (PageId >= PageCount) PageId = PageCount - 1;
            if (PageId < 0) PageId = 0;
            pageid = PageId;
            int count = (PageId + 1) * pageSize > cnt ? (cnt - PageId * pageSize) : pageSize;
            Messages = Messages.GetRange(PageId * pageSize, count);

            return Page();
        }

        public async Task<IActionResult> OnGetAsync(int PageId)
        {
            return Construct(PageId);
        }

        public async Task<IActionResult> OnPostAsync(int PageId)
        {
            return Construct(PageId);
        }

        public async void OnPostPullAsync(int PageId)
        {

            var stu = Context.Students.ToList();
            foreach (var e in stu)
            {
                await Utils.TencentSMS.Pull(Context, e, true);
            }

            Construct(PageId);
        }

        public async Task<IActionResult> OnPostSignAsync(int PageId)
        {

            var stu = Context.Students.ToList();
            foreach (var e in stu)
            {
                if (e.Status == status.刚报名)
                    await Utils.TencentSMS.Send(Context, SMSType.Signed, e, Context.Users.Find(Guid.Parse(User.Claims.FirstOrDefault(c => c.Type == ClaimTypes.Sid).Value)).Name);
            }

            return Construct(PageId);
        }

        public async Task<IActionResult> OnPostResultRejectAsync(int PageId)
        {
            var stu = Context.Students.ToList();
            foreach (var e in stu)
            {
                if (e.Status == status.不通过)
                {
                    if (!Context.SMS.Any(it => it.Host == e.Guid && it.Type == SMSType.Reject))
                        await Utils.TencentSMS.Send(Context, SMSType.Reject, e, Context.Users.Find(Guid.Parse(User.Claims.FirstOrDefault(c => c.Type == ClaimTypes.Sid).Value)).Name);
                }
            }
            return Construct(PageId);
        }

        public async Task<IActionResult> OnPostResultAccpetAsync(int PageId)
        {
            var stu = Context.Students.ToList();
            foreach (var e in stu)
            {
                if (e.Status == status.通过)
                {
                    if (!Context.SMS.Any(it => it.Host == e.Guid && it.Type == SMSType.Accept))
                        await Utils.TencentSMS.Send(Context, SMSType.Accept, e, Context.Users.Find(Guid.Parse(User.Claims.FirstOrDefault(c => c.Type == ClaimTypes.Sid).Value)).Name);
                }

            }
            return Construct(PageId);
        }

    }
}