//! # Zesdex Infrastructure Layer
//!
//! ALL concrete implementations of domain repository traits, application port
//! traits, and platform services. This is the outermost ring of the Clean
//! Architecture onion — it depends on `zesdex-domain` and `zesdex-application`
//! but NEVER on interface/presentation crates.
//!
//! ## Architecture
//!
//! ```text
//! src/
//! ├── lib.rs              — Foundational types + re-exports
//! ├── utils.rs            — CastOr, write_json_atomic, slugify
//! ├── persistence/        — Repository implementations (IAM, CMS, SQLite)
//! ├── auth/               — JWT, Argon2, OAuth loopback
//! ├── llm/                — LLM provider HTTP client
//! ├── ipc/                — Unix-socket IPC protocol
//! ├── mcp/                — Model Context Protocol bridge
//! ├── bgbash/             — Background bash job management
//! ├── tools/              — All 37 agent-invocable tools
//! ├── subagent/           — Subagent spawning & execution engine
//! ├── workflow/           — Hive-mind orchestration engine
//! ├── review/             — Post-edit auto-review subagent
//! ├── guard/              — Tool-gate access control
//! └── middleware/          — Axum HTTP middleware (auth, cors, rate-limit)
//! ```

pub mod auth;
pub mod best_practice;
pub mod bgbash;
pub mod guard;
pub mod ipc;
pub mod llm;
pub mod mcp;
pub mod middleware;
pub mod persistence;
pub mod subagent;
pub mod tools;
pub mod utils;
pub mod workflow;

// ---------------------------------------------------------------------------
// Re-exports from domain
// ---------------------------------------------------------------------------
pub use zesdex_domain::*;

// ---------------------------------------------------------------------------
// Foundation types — these replace `crate::app::state::*` references
// from the legacy backend code.
// ---------------------------------------------------------------------------

use std::path::PathBuf;
use std::sync::Arc;

// Which kind of caller (main agent vs. subagent vs. reviewer) is
// invoking a tool, used to scope permissions and tag log/output paths.
// ---------------------------------------------------------------------------
// TurnEvent & runtime types have been moved to zesdex_domain::agent
// ---------------------------------------------------------------------------

// ---------------------------------------------------------------------------
// Tool types — needed by all tool modules
// ---------------------------------------------------------------------------

pub use tools::{GraduatedCheck, Tool, ToolCtx, ToolCtxBuilder};

// Re-export commonly needed types at the crate root
pub use zesdex_domain::core::{ChatMessage, Role, Store, ToolCallResult, UsageStats};

/// A shared, async-writable cache of directory entries, used to avoid
/// re-reading a directory every render frame.
#[derive(Clone)]
pub struct DirCache {
    entries: Arc<tokio::sync::RwLock<Vec<PathBuf>>>,
}

impl DirCache {
    /// Create an empty directory cache.
    pub fn new() -> Self {
        DirCache {
            entries: Arc::new(tokio::sync::RwLock::new(Vec::new())),
        }
    }

    /// Replace the cached directory entries.
    pub async fn set(&self, paths: Vec<PathBuf>) {
        let mut w = self.entries.write().await;
        *w = paths;
    }
}

impl Default for DirCache {
    fn default() -> Self {
        Self::new()
    }
}

/// A shared, whole-workspace file-path index used for `@file` mention
/// autocomplete.
#[derive(Clone)]
pub struct MentionIndex {
    entries: Arc<std::sync::RwLock<Vec<String>>>,
}

impl MentionIndex {
    /// Create an empty mention index.
    pub fn new() -> Self {
        MentionIndex {
            entries: Arc::new(std::sync::RwLock::new(Vec::new())),
        }
    }

    /// Replace the entire index with a new set of file paths.
    pub fn set(&self, paths: Vec<String>) {
        if let Ok(mut w) = self.entries.write() {
            *w = paths;
        }
    }

    /// Append a single file path to the index.
    pub fn push(&self, path: String) {
        if let Ok(mut w) = self.entries.write() {
            w.push(path);
        }
    }

    /// Return a copy of all indexed paths.
    pub fn snapshot(&self) -> Vec<String> {
        self.entries.read().map(|r| r.clone()).unwrap_or_default()
    }
}

impl Default for MentionIndex {
    fn default() -> Self {
        Self::new()
    }
}