use crate::qintr::*;
use std::{cell::RefCell, fs};
use memmap::Mmap;
use maraiah::map;

pub struct Project
{
   emit: ProjectEmitter,
   wad:  RefCell<Option<map::Wad>>,
}

impl Drop for Project
{
   fn drop(&mut self)
   {
      if cfg!(debug_assertions) {
         eprintln!("drop Project");
      }
   }
}

impl ProjectTrait for Project
{
   fn new(emit: ProjectEmitter) -> Project
   {
      if cfg!(debug_assertions) {
         eprintln!("new Project");
      }

      Project{emit, wad: RefCell::new(None)}
   }

   fn emit(&mut self) -> &mut ProjectEmitter
   {
      &mut self.emit
   }

   fn open(&mut self, path: String) -> bool
   {
      if cfg!(debug_assertions) {
         eprintln!("opening project: {}", &path);
      }

      let fp = fs::File::open(path);
      let fp = if let Ok(fp) = fp {fp} else {return false;};

      let mm = unsafe {Mmap::map(&fp)};
      let mm = if let Ok(mm) = mm {mm} else {return false;};

      if let Ok(wad) = map::read(&mm) {
         self.wad.replace(Some(wad));
         return true;
      }

      false
   }
}

// EOF