using System.Security.Claims;
using HelpDesk.Data.Repositories;
using HelpDesk.Models.DTOs;
using HelpDesk.Models.Entities;
using HelpDesk.Models.Enums;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;

namespace HelpDesk.API.Controllers;

[ApiController]
[Route("api/[controller]")]
[Authorize(Policy = "Agent")]
public class DashboardController : ControllerBase
{
    private readonly ITicketRepository _ticketRepository;
    private readonly IUserRepository _userRepository;

    public DashboardController(ITicketRepository ticketRepository, IUserRepository userRepository)
    {
        _ticketRepository = ticketRepository;
        _userRepository = userRepository;
    }

    [HttpGet("stats")]
    public async Task<ActionResult<DashboardStatsDto>> GetStats()
    {
        var agents = await _userRepository.GetByRoleAsync(UserRole.Agent);
        var agentWorkloads = new List<AgentWorkloadDto>();

        foreach (var agent in agents)
        {
            var activeTickets = await _ticketRepository.GetCountAsync(
                assigneeId: agent.Id,
                status: TicketStatus.Open);

            var inProgressTickets = await _ticketRepository.GetCountAsync(
                assigneeId: agent.Id,
                status: TicketStatus.InProgress);

            agentWorkloads.Add(new AgentWorkloadDto
            {
                UserId = agent.Id,
                UserName = $"{agent.FirstName} {agent.LastName}",
                ActiveTickets = activeTickets + inProgressTickets,
                ResolvedThisWeek = 0
            });
        }

        return Ok(new DashboardStatsDto
        {
            TotalTickets = await _ticketRepository.GetTotalCountAsync(),
            OpenTickets = await _ticketRepository.GetCountByStatusAsync(TicketStatus.Open),
            InProgressTickets = await _ticketRepository.GetCountByStatusAsync(TicketStatus.InProgress),
            PendingTickets = await _ticketRepository.GetCountByStatusAsync(TicketStatus.Pending),
            ResolvedTickets = await _ticketRepository.GetCountByStatusAsync(TicketStatus.Resolved),
            ClosedTickets = await _ticketRepository.GetCountByStatusAsync(TicketStatus.Closed),
            CriticalTickets = await _ticketRepository.GetCountByPriorityAsync(TicketPriority.Critical),
            HighTickets = await _ticketRepository.GetCountByPriorityAsync(TicketPriority.High),
            MediumTickets = await _ticketRepository.GetCountByPriorityAsync(TicketPriority.Medium),
            LowTickets = await _ticketRepository.GetCountByPriorityAsync(TicketPriority.Low),
            AverageResponseTimeMinutes = await _ticketRepository.GetAverageResponseTimeAsync(),
            AverageResolutionTimeMinutes = await _ticketRepository.GetAverageResolutionTimeAsync(),
            AgentWorkloads = agentWorkloads
        });
    }
}