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use processing_glfw::GlfwContext;

use bevy::math::Vec3;

use processing::prelude::*;

use processing_render::render::command::DrawCommand;

fn main() {

match sketch() {

Ok(_) => {

eprintln!("Sketch completed successfully");

exit(0).unwrap();

}

Err(e) => {

eprintln!("Sketch error: {:?}", e);

exit(1).unwrap();

}

};

}

fn sketch() -> error::Result<()> {

let mut glfw_ctx = GlfwContext::new(400, 400, false)?;

init(Config::default())?;

let width = 400;

let height = 400;

let surface = glfw_ctx.create_surface(width, height, false)?;

let graphics = graphics_create(surface, width, height, TextureFormat::Rgba16Float)?;

let box_geo = geometry_box(100.0, 100.0, 100.0)?;

let pbr_mat = material_create_pbr()?;

material_set(pbr_mat, "roughness", shader_value::ShaderValue::Float(0.0))?;

// We will only declare lights in `setup`

// rather than calling some sort of `light()` method inside of `draw`

// create a directional light

let _dir_light =

light_create_directional(graphics, bevy::color::Color::srgb(0.35, 0.25, 0.5), 500.0)?;

// create a point light

let point_light_a = light_create_point(

graphics,

bevy::color::Color::srgb(1.0, 0.5, 0.25),

1_000_000.0,

200.0,

0.5,

)?;

transform_set_position(point_light_a, Vec3::new(-25.0, 5.0, 51.0))?;

transform_look_at(point_light_a, Vec3::new(0.0, 0.0, 0.0))?;

// create another point light

let point_light_b = light_create_point(

graphics,

bevy::color::Color::srgb(0.0, 0.5, 0.75),

2_000_000.0,

200.0,

0.25,

)?;

transform_set_position(point_light_b, Vec3::new(0.0, 5.0, 50.5))?;

transform_look_at(point_light_b, Vec3::new(0.0, 0.0, 0.0))?;

// and a spot light, too!

let spot_light = light_create_spot(

graphics,

bevy::color::Color::srgb(0.25, 0.8, 0.19),

15.0 * 1_000_000.0,

200.0,

0.84,

0.0,

core::f32::consts::FRAC_PI_4,

)?;

transform_set_position(spot_light, Vec3::new(40.0, 0.0, 70.0))?;

transform_look_at(spot_light, Vec3::new(0.0, 0.0, 0.0))?;

graphics_mode_3d(graphics)?;

transform_set_position(graphics, Vec3::new(100.0, 100.0, 300.0))?;

transform_look_at(graphics, Vec3::new(0.0, 0.0, 0.0))?;

let mut angle = 0.0;

while glfw_ctx.poll_events() {

graphics_begin_draw(graphics)?;

graphics_record_command(

graphics,

DrawCommand::BackgroundColor(bevy::color::Color::srgb(0.18, 0.20, 0.15)),

)?;

graphics_record_command(graphics, DrawCommand::Fill(bevy::color::Color::WHITE))?;

graphics_record_command(graphics, DrawCommand::Material(pbr_mat))?;

graphics_record_command(graphics, DrawCommand::PushMatrix)?;

graphics_record_command(

graphics,

DrawCommand::Rotate {

angle,

axis: Vec3::Z,

)?;

graphics_record_command(graphics, DrawCommand::Geometry(box_geo))?;

graphics_record_command(graphics, DrawCommand::PopMatrix)?;

graphics_end_draw(graphics)?;

angle += 0.02;

}

Ok(())

}