use super::{sprite::SpriteDraw, AtlasLayout, Renderer};
use hurrycurry_protocol::glam::Vec2;
use sdl2::rect::Rect;

pub struct FontTextures {
    pub glyphs: [Rect; 128],
}

impl FontTextures {
    pub fn init(layout: &AtlasLayout) -> Self {
        FontTextures {
            glyphs: (0..128)
                .into_iter()
                .map(|n| {
                    layout
                        .get(&format!("letter_{n}+a"))
                        .copied()
                        .unwrap_or(Rect::new(0, 0, 0, 0))
                })
                .collect::<Vec<_>>()
                .try_into()
                .unwrap(),
        }
    }
}

impl<'a> Renderer<'a> {
    pub fn draw_text(&mut self, position: Vec2, text: &str) {
        let mut cursor = position;
        for c in text.chars() {
            if (c as u32) < 128 {
                let r = self.font_textures.glyphs[c as usize];
                self.draw_ui(SpriteDraw::overlay(
                    r,
                    cursor,
                    Vec2::new(r.width() as f32, r.height() as f32),
                    None,
                ));
                cursor.x += r.width() as f32;
            }
        }
    }
}