//! Playlist management: ordered collections of media items.

use chrono::{DateTime, Utc};
use serde::{Deserialize, Serialize};
use uuid::Uuid;

use crate::model::MediaId;
use crate::users::UserId;

/// A user-owned playlist of media items.
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct Playlist {
    pub id: Uuid,
    pub owner_id: UserId,
    pub name: String,
    pub description: Option<String>,
    pub is_public: bool,
    pub is_smart: bool,
    pub filter_query: Option<String>,
    pub created_at: DateTime<Utc>,
    pub updated_at: DateTime<Utc>,
}

/// An item within a playlist at a specific position.
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct PlaylistItem {
    pub playlist_id: Uuid,
    pub media_id: MediaId,
    pub position: i32,
    pub added_at: DateTime<Utc>,
}