use crate::constants;
use std::ffi::OsStr;

use std::fs;
use std::path::{Path, PathBuf};

/// Continually go up in the file tree until a manifest (Forc.toml) is found.
pub fn find_manifest_dir(starter_path: &Path) -> Option<PathBuf> {
    let mut path = std::fs::canonicalize(starter_path).ok()?;
    let empty_path = PathBuf::from("/");
    while path != empty_path {
        path.push(crate::constants::MANIFEST_FILE_NAME);
        if path.exists() {
            path.pop();
            return Some(path);
        } else {
            path.pop();
            path.pop();
        }
    }
    None
}
pub fn get_sway_files(path: PathBuf) -> Vec<PathBuf> {
    let mut files = vec![];
    let mut dir_entries = vec![path];

    while let Some(next_dir) = dir_entries.pop() {
        if let Ok(read_dir) = fs::read_dir(next_dir) {
            for entry in read_dir.filter_map(|res| res.ok()) {
                let path = entry.path();

                if path.is_dir() {
                    dir_entries.push(path);
                } else if is_sway_file(&path) {
                    files.push(path)
                }
            }
        }
    }

    files
}
pub fn is_sway_file(file: &Path) -> bool {
    let res = file.extension();
    Some(OsStr::new(constants::SWAY_EXTENSION)) == res
}