using JobsMedical.Web.Data;
using JobsMedical.Web.Models;
using JobsMedical.Web.Services;
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 BroadcastModel : PageModel
{
    private readonly AppDbContext _db;
    private readonly NotificationService _notify;

    public BroadcastModel(AppDbContext db, NotificationService notify)
    {
        _db = db;
        _notify = notify;
    }

    [BindProperty] public string Title { get; set; } = "";
    [BindProperty] public string? Body { get; set; }
    [BindProperty] public string? Url { get; set; }
    [BindProperty] public string Audience { get; set; } = "all";   // all | staff | employers
    [TempData] public string? Result { get; set; }

    public void OnGet() { }

    public async Task<IActionResult> OnPostAsync()
    {
        if (string.IsNullOrWhiteSpace(Title)) { Result = "عنوان لازم است."; return Page(); }

        IQueryable<User> q = _db.Users.Where(u => !u.IsBanned);
        q = Audience switch
        {
            "staff" => q.Where(u => u.Role == UserRole.Doctor),
            "employers" => q.Where(u => u.Role == UserRole.FacilityAdmin),
            _ => q,
        };
        var ids = await q.Select(u => u.Id).ToListAsync();
        await _notify.BroadcastAsync(ids, Title.Trim(), Body?.Trim(), string.IsNullOrWhiteSpace(Url) ? "/" : Url.Trim());

        Result = $"اعلان برای {ids.Count} کاربر ارسال شد (در‌اپ + پوش در صورت فعال‌بودن).";
        return RedirectToPage();
    }
}