//! hexwork-ui: screen stack + HUD + log (docs/04 §4.6).
//! Full keyboard play mandatory; every mouse action has a key twin.

pub mod board;
pub mod chapel;
pub mod death_ui;
pub mod explore;
pub mod hud;
pub mod identify_ui;
pub mod inventory;
pub mod logfmt;
pub mod look;
pub mod screens;
pub mod settings;
pub mod sheet;
pub mod stream;
pub mod text;
pub mod town;
pub mod transfer;
pub mod undo;

/// Screens in the stack: Title → Chargen → Play → … → Death/Replay.
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
pub enum Screen {
    Title,
    Chargen,
    Play,
    Look,
    Inventory,
    Contracts,
    Map,
    Chapel,
    Death,
    Replay,
}

/// Searchable message log. NetHack voice lives here.
#[derive(Clone, Debug, Default)]
pub struct Log {
    lines: Vec<String>,
}

impl Log {
    pub fn new() -> Self {
        Self::default()
    }

    pub fn push(&mut self, line: impl Into<String>) {
        self.lines.push(line.into());
    }

    /// Case-insensitive substring search (the `/` key).
    pub fn search(&self, query: &str) -> Vec<&str> {
        let q = query.to_lowercase();
        self.lines
            .iter()
            .filter(|l| l.to_lowercase().contains(&q))
            .map(|s| s.as_str())
            .collect()
    }

    pub fn lines(&self) -> &[String] {
        &self.lines
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn log_search_is_case_insensitive() {
        let mut log = Log::new();
        log.push("You smell ozone and wet wool.");
        assert_eq!(log.search("OZONE").len(), 1);
        assert!(log.search("dragon").is_empty());
    }
}