//! Modal overlay types.

//!

//! The TUI keeps a LIFO stack of modals via [`crate::overlay::OverlayStack`].

//! The topmost modal owns keyboard focus and is rendered on top of the current

//! tab. Each modal carries a [`KeyPolicy`] that the keymap resolver uses to

//! decide whether `q` closes the overlay or inserts a literal character.

pub use crate::form::Form;

#[cfg(test)]

mod tests;

/// Keyboard handling policy for an overlay.

#[derive(Debug, Clone, Copy, PartialEq, Eq)]

pub enum KeyPolicy {

    /// Display overlay (Help, Confirm): both `q` and `Esc` close.

    Display,

    /// Input overlay (Form): `Esc` closes; `q` inserts literally.

    Input,

}

/// Action to execute when a confirm overlay is accepted with `y` or Enter.

#[derive(Debug)]

pub enum ConfirmAction {

    DeleteTransaction(String),

}

/// Anything renderable as an overlay. Kept as an enum rather than a trait

/// object so modal state stays `Debug` and survives through the [`crate::overlay::OverlayStack`].

#[derive(Debug)]

pub enum Modal {

    Form(Form),

    Help,

    Confirm {

        prompt: String,

        action: ConfirmAction,

    },

}

impl Modal {

    /// Key handling policy for this overlay variant.

    #[must_use]

        }

}