using System;
using System.Collections.Generic;
using System.IdentityModel.Tokens.Jwt;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using Microsoft.Net.Http.Headers;
using Teso_API.Models;

namespace Teso_API.Controllers
{
    [AllowAnonymous, Route("user_details")]
    [ApiController]
    public class TesoUserDetailsController : ControllerBase
    {
        private readonly TESOContext _context;

        public TesoUserDetailsController(TESOContext context)
        {
            _context = context;
        }

        [Authorize]
        [Route("pullInformation"), HttpGet]
        public async Task<ActionResult<TesoUser>> GetTesoUserDetail()
        {
            var accessToken = Request.Headers[HeaderNames.Authorization];
            string token = accessToken;
            token = token.Substring(6).Trim();
            var handler = new JwtSecurityTokenHandler();
            var jwtToken = handler.ReadToken(token) as JwtSecurityToken;
            string userID = jwtToken.Claims.First(claim => claim.Type == "userGUID").Value;

            TesoUserDetail detail = await _context.TesoUserDetails.AsQueryable().Where(usr => usr.UserGUID == userID).FirstOrDefaultAsync();
            int friends = await _context.Relationships.AsQueryable().Where(t => t.UserGuid == userID).CountAsync();
            UserFinance finance = await _context.UserFinances.AsQueryable().Where(usr => usr.UserGUID == userID).FirstOrDefaultAsync();
            if (finance == null)
            {
                finance = new UserFinance();
                finance.Gold = 0;
                finance.Silver = 0;
            }
            TesoUser tesouser = new TesoUser();
            tesouser.userGUID = detail.UserGUID;
            tesouser.username = detail.Username;
            tesouser.firstname = detail.Firstname;
            tesouser.lastname = detail.Surname;
            tesouser.description = detail.Description;
            tesouser.email = detail.Email;
            tesouser.phonenumber = detail.Phonenumber.HasValue ? detail.Phonenumber.Value.ToString() : "";
            tesouser.address = detail.Address;
            tesouser.thumbnail_dp = detail.ThumbnailDp;
            tesouser.DateOfBirth = detail.DateOfBirth;
            tesouser.country = detail.Country;
            tesouser.gender = detail.Gender;
            tesouser.gold = finance.Gold.ToString();
            tesouser.silver = finance.Silver.ToString();
            tesouser.friends = friends.ToString();

            return tesouser;
        }

        [Authorize]
        [Route("pullProfile"), HttpPost]
        public async Task<ActionResult<ThirdPerson>> GetProfile([FromBody] string tesouser)
        {
            var accessToken = Request.Headers[HeaderNames.Authorization];
            string token = accessToken;
            token = token.Substring(6).Trim();
            var handler = new JwtSecurityTokenHandler();
            var jwtToken = handler.ReadToken(token) as JwtSecurityToken;
            string userID = jwtToken.Claims.First(claim => claim.Type == "userGUID").Value;

            ThirdPerson thirdPerson = new ThirdPerson();

            List<string> friends = await _context.Relationships.AsQueryable().Where(t => t.UserGuid == tesouser).Select(t => t.RelationId).ToListAsync();

            thirdPerson.friends = await _context.Relationships.AsQueryable().Where(t => friends.Contains(t.RelationId) && t.UserGuid != tesouser).
                Select(u => u.UserGuid).ToListAsync();
            bool sentPending = _context.RelationsDetails.Any(f => f.BeneficiaryRequester == userID && f.BeneficiaryRecipient == tesouser && f.Status == "pending");
            bool receivedPending = _context.RelationsDetails.Any(f => f.BeneficiaryRequester == tesouser && f.BeneficiaryRecipient == userID && f.Status == "pending");
            bool friendship = thirdPerson.friends.Any(t => t.Contains(userID));

            if (!sentPending && !receivedPending && !friendship)
            {
                thirdPerson.relation = "not related";
            }
            else if (sentPending && !receivedPending && !friendship)
            {
                thirdPerson.relation = "sent pending";
            }
            else if (!sentPending && receivedPending && !friendship)
            {
                thirdPerson.relation = "received pending";
            }
            else
            {
                thirdPerson.relation = "friends";
            }

            thirdPerson.posts = await _context.Posts.AsQueryable().Where(i => i.PublisherId == tesouser).Select(e => new Post
            {
                Aspect = e.Aspect,
                PlaybackID = e.PlaybackID,
                PostId = e.PostId,
                PublisherId = e.PublisherId,
                AssetID = e.AssetID,
                Rendition = e.Rendition,
                Timestamp = e.Timestamp,
                Title = e.Title
            }).OrderByDescending(t => t.Timestamp).ToListAsync();

            thirdPerson.following = await _context.RelationsDetails.AsQueryable().Where(p => p.Status == "subscribed").Select(s => s.BeneficiaryRecipient).ToListAsync();

            return thirdPerson;

        }

    }
}