using System.ComponentModel;
using System.ComponentModel.DataAnnotations;
using System.Text.Json.Serialization;

using decePubClient.Models.Types;
using decePubClient.Resources;

namespace decePubClient.Models;

/// <summary>
/// A new post or reply. It goes through the Mastodon API (plain text, a content warning, a visibility and media) unless
/// it is located (text only, kept within RangeKm of where it was written, never federated) or meant for a group; those
/// go through /clientapi/post/insert.
/// </summary>
public class ComposeForm
{
	public const int MaxContentLength = 5_000;

	/// <summary>The status a reply answers.</summary>
	public string InReplyToId { get; set; }
	/// <summary>The community or circle the post is for.</summary>
	public string GroupId { get; set; }

	[Required(ErrorMessageResourceName = ValidationNames.Required, ErrorMessageResourceType = typeof(ErrorMessages))]
	public MessageType MessageType { get; set; } = MessageType.Public;
	public bool HasContentWarning { get; set; }
	[StringLength(500, ErrorMessageResourceName = ValidationNames.MaxLength, ErrorMessageResourceType = typeof(ErrorMessages))]
	public string SpoilerText { get; set; }
	[StringLength(MaxContentLength, ErrorMessageResourceName = ValidationNames.MaxLength, ErrorMessageResourceType = typeof(ErrorMessages))]
	public string Content { get; set; }
	public List<UploadMedia> Media { get; set; } = [];

	/// <summary>A located post: shown only to readers within RangeKm of Latitude/Longitude.</summary>
	public bool IsLocated { get; set; }
	[Range(1, 50)]
	public double RangeKm { get; set; } = 5;
	public double? Latitude { get; set; }
	public double? Longitude { get; set; }

	[JsonIgnore, Bindable(false)]
	public MediaType MediaType { get; set; } = MediaType.Images;
	[JsonIgnore, Bindable(false)]
	public bool IsScopeOptionsOpen { get; set; }

	/// <summary>The Mastodon visibility of MessageType.</summary>
	public string Visibility => MessageType switch
	{
		MessageType.Direct => "direct",
		MessageType.FollowersOnly => "private",
		MessageType.Unlisted => "unlisted",
		_ => "public"
	};
}