using System.ComponentModel;
using System.ComponentModel.DataAnnotations;
using System.Runtime.Serialization;
using Umbraco.Extensions;

namespace Umbraco.Cms.Core.Models.ContentEditing;

[DataContract(Name = "scriptFile", Namespace = "")]
public class CodeFileDisplay : INotificationModel, IValidatableObject
{
    public CodeFileDisplay() => Notifications = new List<BackOfficeNotification>();

    /// <summary>
    ///     VirtualPath is the path to the file on disk
    ///     /views/partials/file.cshtml
    /// </summary>
    [DataMember(Name = "virtualPath", IsRequired = true)]
    public string? VirtualPath { get; set; }

    /// <summary>
    ///     Path represents the path used by the backoffice tree
    ///     For files stored on disk, this is a URL encoded, comma separated
    ///     path to the file, always starting with -1.
    ///     -1,Partials,Parials%2FFolder,Partials%2FFolder%2FFile.cshtml
    /// </summary>
    [DataMember(Name = "path")]
    [ReadOnly(true)]
    public string? Path { get; set; }

    [DataMember(Name = "name", IsRequired = true)]
    public string? Name { get; set; }

    [DataMember(Name = "content", IsRequired = true)]
    public string? Content { get; set; }

    [DataMember(Name = "fileType", IsRequired = true)]
    public string? FileType { get; set; }

    [DataMember(Name = "snippet")]
    [ReadOnly(true)]
    public string? Snippet { get; set; }

    [DataMember(Name = "id")]
    [ReadOnly(true)]
    public string? Id { get; set; }

    public List<BackOfficeNotification> Notifications { get; }

    /// <summary>
    ///     Some custom validation is required for valid file names
    /// </summary>
    /// <param name="validationContext"></param>
    /// <returns></returns>
    public IEnumerable<ValidationResult> Validate(ValidationContext validationContext)
    {
        var illegalChars = System.IO.Path.GetInvalidFileNameChars();
        if (Name?.ContainsAny(illegalChars) ?? false)
        {
            yield return new ValidationResult(
                "The file name cannot contain illegal characters",
                new[] { "Name" });
        }
        else if (System.IO.Path.GetFileNameWithoutExtension(Name).IsNullOrWhiteSpace())
        {
            yield return new ValidationResult(
                "The file name cannot be empty",
                new[] { "Name" });
        }
    }
}