use std::{env::current_dir, path::PathBuf};

use mingling::{
    Program,
    macros::{arg, program_setup},
    picker::{PickerHelper, value::DirPath},
};

use crate::ThisProgram;

#[derive(Default, Clone)]
pub struct ResGodotProjectDirectory {
    pub dir: Option<PathBuf>,
}

#[program_setup]
pub fn godot_project_setup(p: &mut Program<ThisProgram>) {
    let dir = p
        .pick_argument(&arg![project: Option<DirPath>, 'P'])
        .unwrap();

    if let Some(dir) = dir
        && dir.to_path_buf().join("project.godot").exists()
    {
        p.with_resource(ResGodotProjectDirectory {
            dir: Some(dir.to_path_buf()),
        });
        return;
    }

    let mut cwd = current_dir().unwrap();
    loop {
        if cwd.join("project.godot").exists() {
            p.with_resource(ResGodotProjectDirectory { dir: Some(cwd) });
            return;
        }
        if !cwd.pop() {
            break;
        }
    }

    p.with_resource(ResGodotProjectDirectory { dir: None });
}