using AGSS.Models.Entities;
using AGSS.Models.Template;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Mvc;

namespace AGSS.Controllers.Admin;

[Authorize(Roles = "Admin")]
[Route("api/v1/[controller]/[action]")]
public class AdminRoleControllers:ControllerBase
{
    
    private readonly RoleManager<RoleModel> _roleManager;
    private readonly UserManager<UserModel> _userManager; // Assuming UserModel is the type of user

    public AdminRoleControllers(RoleManager<RoleModel> roleManager, UserManager<UserModel> userManager)
    {
        _roleManager = roleManager;
        _userManager = userManager;
    }

    [HttpPost]
    public async Task<IActionResult> AddRole([FromBody] RoleModel role)
    {
        if (role == null || string.IsNullOrWhiteSpace(role.Name))
        {
           
            return Ok(new ReturnTemplate(400,"创建失败，请提供名字",""));
        }

        var result = await _roleManager.CreateAsync(role);
        if (result.Succeeded)
        {
            return Ok(new ReturnTemplate(200,"创建成功",role));

        }
        else
        {
            return Ok(new ReturnTemplate(StatusCodes.Status500InternalServerError,"创建失败","Failed to create role: " + string.Join(", ", result.Errors.Select(e => e.Description))));
        }
    }
    [HttpPost]
    public async Task<IActionResult> EndowRole(string userId, string roleName)
    {
        var user = await _userManager.FindByIdAsync(userId);
        if (user == null)
        {
            return Ok(new ReturnTemplate(400, "用户不存在", ""));
        }

        var role = await _roleManager.FindByNameAsync(roleName);
        if (role == null)
        {
            return Ok(new ReturnTemplate(400, "角色不存在", ""));
        }

        var result = await _userManager.AddToRoleAsync(user, role.Name);
        if (result.Succeeded)
        {
            return Ok(new ReturnTemplate(200, "角色分配成功", user));
        }
        else
        {
            return Ok(new ReturnTemplate(StatusCodes.Status500InternalServerError, "角色分配失败", "Failed to endow role: " + string.Join(", ", result.Errors.Select(e => e.Description))));
        }
    }


/// <summary>
/// 通过角色查询用户，支持分页
/// </summary>
/// <returns></returns>
    [HttpPost]
    public async Task<IActionResult> SearchUserFromRole([FromBody] SearchUserFromRoleRequest request)
    {
        if (string.IsNullOrWhiteSpace(request.RoleName))
        {
            return Ok(new ReturnTemplate(400, "角色名称不能为空", null));
        }

        var role = await _roleManager.FindByNameAsync(request.RoleName);
        if (role == null)
        {
            return Ok(new ReturnTemplate(400, "角色不存在", null));
        }

        var usersInRole = await _userManager.GetUsersInRoleAsync(role.Name);
        var totalUsers = usersInRole.Count;

        var pagedUsers = usersInRole
            .Skip((request.Page - 1) * request.PageSize)
            .Take(request.PageSize)
            .ToList();

        var response = new SearchUserFromRoleResponse
        {
            TotalCount = totalUsers,
            Users = pagedUsers
        };

        return Ok(new ReturnTemplate(200, "查询成功", response));
    }

    public class SearchUserFromRoleRequest
    {
        public string RoleName { get; set; }
        public int Page { get; set; } = 1;
        public int PageSize { get; set; } = 10;
    }

    public class SearchUserFromRoleResponse
    {
        public int TotalCount { get; set; }
        public List<UserModel> Users { get; set; }
    }
}