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

#[derive(Debug, Clone, Serialize, Deserialize, FromRow)]
pub struct Bookmark {
    pub id: Uuid,
    pub user_id: Uuid,
    pub manga_id: Uuid,
    pub chapter_id: Option<Uuid>,
    pub page: Option<i32>,
    pub created_at: DateTime<Utc>,
}

/// `Bookmark` enriched with the parent manga's title + cover and the
/// chapter's reader-facing number, so the /bookmarks page can render a
/// proper card (title, cover, link target) without N+1 round-trips.
/// Populated by JOINs in `repo::bookmark::list_for_user`:
/// - `manga_title` / `manga_cover_image_path` come from `mangas` via an
///   INNER JOIN (safe: `bookmarks.manga_id` is `ON DELETE CASCADE`, so a
///   bookmark cannot outlive its manga).
/// - `chapter_number` comes from `chapters` via a LEFT JOIN; `null` for
///   manga-level bookmarks or for chapter bookmarks whose chapter has
///   since been deleted (`bookmarks.chapter_id` is `ON DELETE SET NULL`).
#[derive(Debug, Clone, Serialize, FromRow)]
pub struct BookmarkSummary {
    pub id: Uuid,
    pub user_id: Uuid,
    pub manga_id: Uuid,
    pub manga_title: String,
    pub manga_cover_image_path: Option<String>,
    pub chapter_id: Option<Uuid>,
    pub chapter_number: Option<i32>,
    pub page: Option<i32>,
    pub created_at: DateTime<Utc>,
}