pub mod config; // Configuration loading from YAML
pub mod db; // SQLite database access (CRUD for assets and tags)
pub mod error; // Centralized error types and HTTP error responses
pub mod hash; // SHA-256 content hashing
pub mod models; // Data structures shared across the codebase
pub mod routes; // HTTP API route handlers
pub mod storage; // File I/O: reading, writing, and trashing asset files
pub mod verifier; // Background integrity checker and file-attribute syncer
pub mod xattr; // OS-level file metadata (xattr on Unix, NTFS ADS on Windows)

use std::sync::Arc;

use crate::config::Config;
use crate::db::Db;

/// Broadcast channel for notifying sync subscribers about new assets.
/// Each message is `"hash:timestamp"` (e.g. `"abc123def456:1710000000000"`).
pub type SyncEventSender = tokio::sync::broadcast::Sender<String>;

/// Shared application state passed to every HTTP handler.
#[derive(Clone)]
pub struct AppState {
    pub config: Arc<Config>,
    pub db: Db,
    pub sync_events: SyncEventSender,
}