using System.ComponentModel.DataAnnotations;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;
using plushealthtech.Mail;

namespace plushealthtech.Pages
{
    public class ContactModel : PageModel
    {
        private readonly MailSender _mailSender;
        private readonly ILogger<ContactModel> _logger;

        public ContactModel(MailSender mailSender, ILogger<ContactModel> logger)
        {
            _mailSender = mailSender;
            _logger = logger;
        }

        [BindProperty]
        [Required]
        [StringLength(200)]
        public string Name { get; set; } = string.Empty;

        [BindProperty]
        [Required]
        [EmailAddress]
        [StringLength(320)]
        public string Email { get; set; } = string.Empty;

        [BindProperty]
        [StringLength(200)]
        public string? Organization { get; set; }

        [BindProperty]
        [StringLength(50)]
        public string? Phone { get; set; }

        [BindProperty]
        [Required]
        [StringLength(5000)]
        public string Message { get; set; } = string.Empty;

        public string? Success { get; set; }

        public string? Error { get; set; }

        public void OnGet()
        {
            Success = null;
            Error = null;
        }

        public async Task<IActionResult> OnPostAsync()
        {
            if (!ModelState.IsValid)
            {
                return Page();
            }

            var lines = new List<string>
            {
                $"Name: {Name}",
                $"Email: {Email}"
            };

            if (!string.IsNullOrWhiteSpace(Organization))
            {
                lines.Add($"Organization: {Organization}");
            }

            if (!string.IsNullOrWhiteSpace(Phone))
            {
                lines.Add($"Phone: {Phone}");
            }

            lines.Add(string.Empty);
            lines.Add(Message);

            try
            {
                await _mailSender.SendAsync($"New contact form message — {Name}", string.Join("\n", lines));
                Success = $"Thanks — your message has been sent. We'll reply to {Email}.";
            }
            catch (Exception ex)
            {
                // Log the full exception; never surface SMTP details to the user.
                _logger.LogError(ex, "Failed to send contact form message from {Email}", Email);
                Error = "Your message could not be sent right now. Please try again or email us directly.";
            }

            return Page();
        }
    }
}