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use std::env;
use std::fs;
use std::path::PathBuf;
#[cfg(test)]
mod tests;
#[allow(deprecated)]
pub(crate) fn get_dbpath_for_term(term: &str) -> Option<PathBuf> {
    let mut dirs_to_search = Vec::new();
    let first_char = term.chars().next()?;
    
    if let Some(dir) = env::var_os("TERMINFO") {
        dirs_to_search.push(PathBuf::from(dir));
    }
    if let Ok(dirs) = env::var("TERMINFO_DIRS") {
        for i in dirs.split(':') {
            if i == "" {
                dirs_to_search.push(PathBuf::from("/usr/share/terminfo"));
            } else {
                dirs_to_search.push(PathBuf::from(i));
            }
        }
    } else {
        
        
        
        
        
        if let Some(mut homedir) = env::home_dir() {
            homedir.push(".terminfo");
            dirs_to_search.push(homedir)
        }
        dirs_to_search.push(PathBuf::from("/etc/terminfo"));
        dirs_to_search.push(PathBuf::from("/lib/terminfo"));
        dirs_to_search.push(PathBuf::from("/usr/share/terminfo"));
        dirs_to_search.push(PathBuf::from("/boot/system/data/terminfo"));
    }
    
    for mut p in dirs_to_search {
        if fs::metadata(&p).is_ok() {
            p.push(&first_char.to_string());
            p.push(&term);
            if fs::metadata(&p).is_ok() {
                return Some(p);
            }
            p.pop();
            p.pop();
            
            
            p.push(&format!("{:x}", first_char as usize));
            p.push(term);
            if fs::metadata(&p).is_ok() {
                return Some(p);
            }
        }
    }
    None
}