//! Wire types for the Zesdex IPC protocol.

use serde::{Deserialize, Serialize};

/// A resolved key press sent from the daemon to the client.
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub enum KeyAction {
    Char(char),
    Enter,
    Escape,
    Backspace,
    Delete,
    Tab,
    Up,
    Down,
    Left,
    Right,
    Home,
    End,
    PageUp,
    PageDown,
    Function(u8),
}

/// A message sent from the TUI client to the daemon over the IPC socket.
#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum ClientRequest {
    Tick,
    KeyPress {
        key: KeyAction,
        ctrl: bool,
        alt: bool,
        shift: bool,
    },
    Submit(String),
    Paste(String),
    Resize(u16, u16),
    Close,
    ScrollUp,
    ScrollDown,
}

/// A single chat message within a session.
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct MessageEntry {
    pub role: String,
    pub content: String,
    pub timestamp: i64,
}

/// A transient toast notification sent to the client.
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ToastEntry {
    pub kind: String,
    pub message: String,
    pub created_at: i64,
    pub lifetime_ms: u64,
}

/// Full UI state snapshot pushed from the daemon to the client.
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct StatePayload {
    pub session_id: String,
    pub messages: Vec<MessageEntry>,
    pub edit_count: u32,
    pub message_count: usize,
    pub overlay: Option<String>,
    pub toasts: Vec<ToastEntry>,
    pub dirty: bool,
    pub input_buffer: String,
    pub input_cursor: usize,
}

/// A frame sent from the daemon to the client.
#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum DaemonFrame {
    StateUpdate(Box<StatePayload>),
    StreamToken(String),
    SystemNote {
        kind: String,
        message: String,
    },
    ClipboardCopy(String),
    Closed,
}