using Manganese.Array;
using Masuit.Tools;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using System;
using System.Security.Claims;
using System.Text.Json;

namespace asg_form.Controllers
{
    public class InviteReferee : ControllerBase
    {
        private readonly RoleManager<Role> roleManager;
        private readonly UserManager<User> userManager;
        public InviteReferee(
            RoleManager<Role> roleManager, UserManager<User> userManager)
        {

            this.roleManager = roleManager;
            this.userManager = userManager;
        }

        public class idRequest
        {
            public int invited_id { get; set; }
            public int match_id { get; set; }
        }
        public class InviteBg
        {
            public int id { get; set; }
            public int user_id { get; set; }
            public string? my_request { get; set; }


        }

        public class inv
        {
            public int invitedId { get; set; }
            public int matchId { get; set; }
        }
            

        [Route("api/v1/Invite")]
        [HttpPost]
        [Authorize]
        public async Task<ActionResult<object>> GetReferee([FromBody] inv msg)
        {
            string Invitorid = this.User.FindFirst(ClaimTypes.NameIdentifier)!.Value;
            var user = await userManager.FindByIdAsync(Invitorid);
            long userId = user.Id;

            using (TestDbContext sb = new TestDbContext())
            {
                int wrong_part = -1;
                try
                {
                    var userInvited = await userManager.Users.FirstOrDefaultAsync(x => x.Id == msg.invitedId);
                    if (userInvited == null) return Ok(new { code = 404, message = "用户未找到" });
                    

                    var invitationRecord =  sb.T_Invitation.FirstOrDefault(c => c.user_id == msg.invitedId);
                    wrong_part = 0;

                    string updatedJson;


                    if (invitationRecord != null)
                    {
                        List<idRequest> existingPairs = JsonSerializer.Deserialize<List<idRequest>>(json: invitationRecord.my_request);
                        wrong_part = 1;
                        //if (!string.IsNullOrEmpty(invitationRecord.my_request))
                        //{
                        //    existingPairs = JsonSerializer.Deserialize<List<idRequest>>(invitationRecord.my_request) ?? new List<idRequest>();
                        //}
                        if (existingPairs.Any(req => req.invited_id == userId && req.match_id == msg.matchId))
                        {
                        return Ok(new { code = 409, message = "邀请已存在" }); 
                        }
                        wrong_part=2;
                        existingPairs.Add(new idRequest { invited_id=(int)userId,match_id=msg.matchId });
                        updatedJson = JsonSerializer.Serialize(existingPairs);
                        invitationRecord.my_request = updatedJson;                                              
                        //sb.T_Invitation.Update(invitationRecord);
                        wrong_part =3;                                                              
                    }
                    else
                    {
                        
                        wrong_part = 4;
                        updatedJson = "["+JsonSerializer.Serialize(new idRequest { invited_id = (int)userId, match_id = msg.matchId })+"]";
                        wrong_part = 5;
                        invitationRecord = new InviteBg
                        {
                            user_id = msg.invitedId,
                            my_request = updatedJson
                        };
                        sb.T_Invitation.Add(invitationRecord);

                    }
                    wrong_part = 6;
                    await sb.SaveChangesAsync();               
                    var data = new
                    {
                        invitedId = (int)userId,
                        matchId = msg.matchId,
                        jsonId = updatedJson
                    };
                    return Ok(new { code = 200, message = "邀请成功", data });    
                }            
                catch (Exception ex)
                {
                    return Ok(new { code = 500, message = "服务器错误", details = ex.Message ,wrong_part});
                }
                
            }
        }
    }
}