using JobsMedical.Web.Data;
using JobsMedical.Web.Models;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;
using Microsoft.EntityFrameworkCore;

namespace JobsMedical.Web.Pages.Admin;

[Authorize(Roles = "Admin")]
public class UsersModel : PageModel
{
    private readonly AppDbContext _db;
    public UsersModel(AppDbContext db) => _db = db;

    public record Row(User User, int Facilities);
    public List<Row> Users { get; private set; } = new();
    [BindProperty(SupportsGet = true)] public string? Q { get; set; }
    [BindProperty(SupportsGet = true)] public UserRole? RoleFilter { get; set; }

    public async Task OnGetAsync()
    {
        IQueryable<User> q = _db.Users;
        if (!string.IsNullOrWhiteSpace(Q))
        {
            var s = Q.Trim();
            q = q.Where(u => u.Phone.Contains(s) || (u.FullName != null && u.FullName.Contains(s)));
        }
        if (RoleFilter is not null) q = q.Where(u => u.Role == RoleFilter);

        var users = await q.OrderByDescending(u => u.CreatedAt).Take(300).ToListAsync();
        var ids = users.Select(u => u.Id).ToList();
        var facCounts = await _db.Facilities.Where(f => f.OwnerUserId != null && ids.Contains(f.OwnerUserId.Value))
            .GroupBy(f => f.OwnerUserId!.Value).Select(g => new { g.Key, C = g.Count() })
            .ToDictionaryAsync(x => x.Key, x => x.C);

        Users = users.Select(u => new Row(u, facCounts.GetValueOrDefault(u.Id))).ToList();
    }

    public async Task<IActionResult> OnPostBanAsync(int id, string? reason)
    {
        var u = await _db.Users.FindAsync(id);
        if (u is null) return NotFound();
        if (u.Role == UserRole.Admin) { TempData["err"] = "نمی‌توان مدیر را مسدود کرد."; return RedirectToPage(new { Q, RoleFilter }); }
        u.IsBanned = true;
        u.BanReason = string.IsNullOrWhiteSpace(reason) ? "نقض قوانین" : reason.Trim();
        await _db.SaveChangesAsync();
        return RedirectToPage(new { Q, RoleFilter });
    }

    public async Task<IActionResult> OnPostUnbanAsync(int id)
    {
        var u = await _db.Users.FindAsync(id);
        if (u is null) return NotFound();
        u.IsBanned = false; u.BanReason = null;
        await _db.SaveChangesAsync();
        return RedirectToPage(new { Q, RoleFilter });
    }
}