//! Multithreaded: MNW-integrated forum software.
//!
//! # Design
//!
//! The competitive positioning, moderation policy, and rollback runbook live in
//! the maintainer wiki; audit and fuzz findings are tracked as problems in
//! GoingsOn.
//! <!-- wiki: mt-overview -->

pub mod auth;
pub mod chat;
pub mod config;
pub mod csrf;
pub mod error_page;
pub mod internal_auth;
pub mod link_preview;
pub mod maintenance;
pub mod routes;
pub mod seed;
pub mod static_assets;
pub mod storage;
pub mod templates;
pub mod tls;
pub mod trust_store;
pub mod trusted_proxy;

use config::Config;
use sqlx::PgPool;
use std::sync::Arc;

/// Shared application state available to all handlers.
#[derive(Clone)]
pub struct AppState {
    pub db: PgPool,
    pub config: Config,
    pub http: reqwest::Client,
    /// Link preview fetcher. `LinkPreviewFetcher::Http` in production with an
    /// SSRF-safe redirect policy; `LinkPreviewFetcher::Noop` in tests.
    pub link_preview: link_preview::LinkPreviewFetcher,
    pub s3: Option<Arc<storage::S3Storage>>,
    /// Live chat: the fan-out hub and the per-(user, room) send budgets.
    ///
    /// One per process. Rooms are created lazily when someone listens and
    /// pruned when the last listener leaves, so a deployment where no community
    /// has chat enabled carries an empty map and nothing else.
    pub chat: Arc<livechat::Chat>,
    /// Display names and avatars for chat, cached with a TTL and a hard cap.
    /// Shared with the profile-update path, which invalidates on rename.
    pub chat_identities: chat::IdentityCache,
}