using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using api.Data;
using api.Dtos;
using api.Models;
using AutoMapper;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;

namespace api.Controllers
{

    [Authorize]
    [Route("api/[controller]")]
    [ApiController]
    public class TeamsController : ControllerBase
    {
        private readonly DataContext context;
        private readonly ITeamsRepository _repo;
        private readonly IMapper _mapper;
        private readonly RoleManager<Role> _roleManager;
        private readonly UserManager<User> _userManager;
        public TeamsController(DataContext context,ITeamsRepository repo, IMapper mapper,RoleManager<Role> roleManager,UserManager<User> UserManager)
        {
            this.context = context;
            _mapper = mapper;
            _roleManager = roleManager;
            _userManager = UserManager;
            _repo = repo;
        }
        
        // GET api/teams
        // GET all teams
        [HttpGet]
        public async Task<List<TeamToReturn>> GetTeams()
        {
          List<Team> allTeams = await context.Teams.ToListAsync();
          List<TeamToReturn> rTeams = new List<TeamToReturn>();

          for(var i = 0; i < allTeams.Count;i++){
            TeamToReturn tR = new TeamToReturn();
            _mapper.Map(allTeams[i],tR);
            var usr = await context.Users.FirstOrDefaultAsync(a=>a.QRcode == allTeams[i].CapQR);
            UserForListDto uT = new UserForListDto();
            _mapper.Map(usr,uT);
            tR.Cap = uT;
            rTeams.Add(tR);
          }

          return rTeams;
        }

        // GET api/teams/e/[id]
        // GET all teams for event id
        [HttpGet("e/{id}")]
        public async Task<List<TeamToReturn>> GetTeamsEvent(int id)
        {
          List<Team> allTeams = await context.Teams.ToListAsync();
          List<TeamToReturn> rTeam = new List<TeamToReturn>();
          TeamToReturn tR = new TeamToReturn();

          for(var i = 0; i < allTeams.Count;i++){
             if(allTeams[i].EventId == id){
                _mapper.Map(allTeams[i],tR);
                var usr = await context.Users.FirstOrDefaultAsync(a=>a.QRcode == allTeams[i].CapQR);
                UserForListDto uT = new UserForListDto();
                _mapper.Map(usr,uT);
                tR.Cap = uT;
                rTeam.Add(tR);
             }
          }
            
          return rTeam;
        }

        // GET api/teams/u/[id]
        // GET all teams for user id
        [HttpGet("u/{QR}")]
        public async Task<TeamToReturn> GetTeamsUser(String QR)
        {
          var rUsr = await context.Users.Include(b=>b.team).FirstOrDefaultAsync(a=>a.QRcode == QR);
          List<Team> allTeams = await context.Teams.ToListAsync();
          TeamToReturn rTeam = new TeamToReturn();

          for(var i = 0; i < allTeams.Count;i++){
             if(allTeams[i].Id == rUsr.team.Id){
                _mapper.Map(allTeams[i],rTeam);
                var usr = await context.Users.FirstOrDefaultAsync(a=>a.QRcode == allTeams[i].CapQR);
                UserForListDto uT = new UserForListDto();
                _mapper.Map(usr,uT);
                rTeam.Cap = uT;
             }
          }
            
          return rTeam;
        }

        // POST api/teams/add
        // create team
        [HttpPost("add")]
        public async Task<IActionResult> CreateTeam(TeamForAdd TeamAddDetails)
        {

          User tCap = await context.Users.Include(a=>a.team).FirstOrDefaultAsync(u=>u.QRcode == TeamAddDetails.capQR);
          
          if(tCap.team == null){
            Team tAdd = new Team{EventId = TeamAddDetails.EventId, Nome = TeamAddDetails.Nome, CapQR = tCap.QRcode, NMembros = 1, Pontos = 0};

            tCap.team = tAdd;

            await context.Teams.AddAsync(tAdd);
            context.Users.Update(tCap);

            var result = context.SaveChanges();
            
            if (result >= 1)
              {
                  return StatusCode(201);
              }
            return BadRequest();
          }else{
            return BadRequest();
          }
          
        }

        // POST api/teams/add/member
        // create team
        [HttpPost("add/member")]
        public async Task<IActionResult> AddTeamMember(TeamAddMember MemberToAdd)
        {

          User newMember = await context.Users.FirstOrDefaultAsync(u=>u.QRcode == MemberToAdd.newQR);

          Team tEdit = await context.Teams.FirstOrDefaultAsync(t=>t.Id == MemberToAdd.id);

          if(newMember.team == null){
            tEdit.NMembros++;
            newMember.team = tEdit;

            context.Teams.Update(tEdit);
            context.Users.Update(newMember);

            var result = context.SaveChanges();

            return StatusCode(201);

          }else{
            return StatusCode(403);
          }
          
        }

        // POST api/teams/ChangeName
        // create team
        [HttpPost("changename")]
        public async Task<IActionResult> ChangeName(TeamChangeName NameChange)
        {

          Team tEdit = await context.Teams.FirstOrDefaultAsync(t=>t.Id == NameChange.TeamID);

          User cap = await context.Users.FirstOrDefaultAsync(u=>u.QRcode == NameChange.UserQR);

          if(cap.QRcode == tEdit.CapQR){
            tEdit.Nome = NameChange.nome;
          }

          context.Teams.Update(tEdit);

          var result = context.SaveChanges();
          
          return StatusCode(201);
          
        }

        // POST api/teams/delete
        // create team
        [HttpPost("delete")]
        public async Task<IActionResult> DeleteTeam(TeamDelete DeleteData)
        {

          Team tEdit = await context.Teams.FirstOrDefaultAsync(t=>t.Id == DeleteData.TeamID);

          User cap = await context.Users.FirstOrDefaultAsync(u=>u.QRcode == DeleteData.UserQR);

          if(cap.QRcode == tEdit.CapQR){
            context.Teams.Remove(tEdit);
            cap.team = null;
            context.Users.Update(cap);
            var result = context.SaveChanges();
            return StatusCode(201);
          }else{
            return StatusCode(403);
          }
        }

        // POST api/teams/remove/member
        // remove member
        [HttpPost("remove/member")]
        public async Task<IActionResult> RemoveTeamMember(TeamRemoveMEmber MemberToRemove)
        {

          User rmMember = await context.Users.FirstOrDefaultAsync(u=>u.QRcode == MemberToRemove.UserToRemoveQR);

          Team tEdit = await context.Teams.FirstOrDefaultAsync(t=>t.Id == MemberToRemove.TeamID);

          if(rmMember.QRcode == tEdit.CapQR){
            return StatusCode(403);
          }

          if(rmMember.team == tEdit){
            tEdit.NMembros--;
            rmMember.team = null;

            context.Teams.Update(tEdit);
            context.Users.Update(rmMember);

            var result = context.SaveChanges();
            
            return StatusCode(201);
          }else{
            return StatusCode(403);
          }
          
        }
    }
}