use std::collections::HashMap;

use sdl2::image::LoadTexture;
use sdl2::render::Texture;
use sdl2::render::TextureCreator;
use sdl2::video::WindowContext;

pub struct SpriteManager {
    texture_creator: TextureCreator<WindowContext>, // can't make the lifetimes work when this is owned instead of borrowed
    textures: HashMap<String, Texture>,
}

impl SpriteManager {
    pub fn new(texture_creator: TextureCreator<WindowContext>) -> SpriteManager {
        SpriteManager {
            texture_creator,
            textures: HashMap::new(),
        }
    }

    pub fn load(&mut self, name: &str, file: &str) {
        self.textures.insert(
            name.to_string(),
            self.texture_creator.load_texture(file).unwrap(),
        );
    }

    pub fn get(&self, name: &str) -> &Texture {
        self.textures
            .get(name)
            .unwrap_or_else(|| panic!("The sprite '{}' was not found", name))
    }
}