//! Sticker attachment on a message — maps to `message_sticker` table.
//!
//! Large sticker images sent in messages, distinct from emoji reactions.
//! Stickers are either workspace-level (custom, defined in appks) or
//! system-level (built-in sticker packs).

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

/// A sticker attached to a message.
///
/// Maps to the `message_sticker` table. Stickers are larger than emoji
/// and can be workspace-level (custom) or system-level (built-in packs).
#[derive(Debug, Clone, Serialize, Deserialize, sqlx::FromRow)]
pub struct MessageSticker {
    pub id: Uuid,
    pub message_id: Uuid,
    /// References a sticker defined in appks (workspace or system sticker).
    pub sticker_id: Uuid,
    /// Sticker name at time of send (snapshot for history).
    pub name: String,
    /// Image URL (snapshot).
    pub image_url: String,
    /// "png" | "apng" | "lottie"
    pub format_type: String,
    /// Pack name (e.g. "Wumpus" or workspace name).
    pub pack_name: Option<String>,
    /// Search tags for discovery.
    pub tags: Option<String>,
    pub created_at: DateTime<Utc>,
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_sticker_serialize() {
        let s = MessageSticker {
            id: Uuid::now_v7(),
            message_id: Uuid::now_v7(),
            sticker_id: Uuid::now_v7(),
            name: "Hype!".into(),
            image_url: "https://cdn.example.com/stickers/hype.png".into(),
            format_type: "png".into(),
            pack_name: Some("Wumpus".into()),
            tags: Some("excited,hype".into()),
            created_at: Utc::now(),
        };

        let json = serde_json::to_value(&s).unwrap();
        assert_eq!(json["name"], "Hype!");
        assert_eq!(json["format_type"], "png");
    }
}