use domain::{ContentType, MediaItem, MediaItemId};

use crate::models::JellyfinItem;

/// Ticks are Jellyfin's time unit: 1 tick = 100 nanoseconds -> 10,000,000 ticks/sec.
pub(crate) const TICKS_PER_SEC: i64 = 10_000_000;

/// Map a raw Jellyfin item to a domain `MediaItem`. Returns `None` for unknown
/// item types (e.g. Season, Series, Folder) so they are silently skipped.
pub(crate) fn map_jellyfin_item(item: JellyfinItem) -> Option<MediaItem> {
    let content_type = match item.item_type.as_str() {
        "Movie" => ContentType::Movie,
        "Episode" => ContentType::Episode,
        _ => return None,
    };

    let duration_secs = item
        .run_time_ticks
        .map(|t| (t / TICKS_PER_SEC) as u32)
        .unwrap_or(0);

    Some(MediaItem::from_persistence(
        MediaItemId::new(item.id),
        item.name,
        content_type,
        duration_secs,
        item.overview,
        item.genres.unwrap_or_default(),
        item.production_year,
        item.tags.unwrap_or_default(),
        item.series_name,
        item.parent_index_number,
        item.index_number,
        None, // thumbnail_url
        None, // collection_id
    ))
}