using System.Text.Json;
using Femto.Common.Domain;
using Femto.Modules.Blog.Domain.Posts.Events;
using Femto.Modules.Blog.Emoji;

namespace Femto.Modules.Blog.Domain.Posts;

internal class Post : Entity
{
    public Guid Id { get; private set; }
    public Guid AuthorId { get; private set; }
    public string Content { get; private set; } = null!;
    public IList<PostMedia> Media { get; private set; }

    public IList<PostReaction> Reactions { get; private set; } = [];
    public bool IsPublic { get; set; }
    
    public DateTimeOffset PostedOn { get; private set; }

    private string PossibleReactionsJson { get; set; } = null!;

    public IEnumerable<string> PossibleReactions
    {
        get => JsonSerializer.Deserialize<IEnumerable<string>>(this.PossibleReactionsJson)!;
        init => PossibleReactionsJson = JsonSerializer.Serialize(value);
    }

    private Post() { }

    public Post(Guid authorId, string content, IList<PostMedia> media)
    {
        this.Id = Guid.CreateVersion7();
        this.AuthorId = authorId;
        this.Content = content;
        this.Media = media;
        this.PossibleReactions = AllEmoji.GetRandomEmoji(5);
        this.PostedOn = DateTimeOffset.UtcNow;

        this.AddDomainEvent(new PostCreated(this));
    }
}