kptui 0.20.0

use std::path::PathBuf;

use zeroize::Zeroize;

const VAULT: &str = "~/.local/share/kptui/default.kdbx";

fn strip_surrounding_quotes(path: &str) -> &str {
	let bytes = path.as_bytes();

	if bytes.len() >= 2 {
		let first = bytes[0];
		let last = bytes[bytes.len() - 1];

		if (first == b'\'' && last == b'\'') || (first == b'"' && last == b'"') {
			return &path[1..path.len() - 1];
		}
	}

	path
}

pub fn expand_tilde(path: &str) -> PathBuf {
	let path = strip_surrounding_quotes(path.trim());

	if let Some(rest) = path.strip_prefix("~/")
		&& let Ok(home) = std::env::var("HOME")
	{
		return PathBuf::from(home).join(rest);
	}
	PathBuf::from(path)
}

pub fn default_new_database_path() -> PathBuf {
	expand_tilde(VAULT)
}

pub fn wrap_help_items(items: &[&str], width: u16) -> Vec<String> {
	let width = width as usize;
	let mut lines: Vec<String> = Vec::new();
	let mut current = String::new();

	for item in items {
		let extra = if current.is_empty() { 0 } else { 2 };

		if !current.is_empty() && current.len() + extra + item.len() > width {
			lines.push(std::mem::take(&mut current));
		}

		if !current.is_empty() {
			current.push_str("  ");
		}
		current.push_str(item);
	}

	if !current.is_empty() || lines.is_empty() {
		lines.push(current);
	}

	lines
}

pub fn secret_pop(secret: &mut String) {
	if let Some((index, _)) = secret.char_indices().next_back() {
		secret[index..].zeroize();
		secret.truncate(index);
	}
}