#include <SDL2/SDL.h>
#include "./constants.h"
#include "./structs.h"

extern App app;

static void handle_key_down(SDL_KeyboardEvent *event) {
	if(event->repeat == 0) {
		if(event->keysym.sym == SDLK_ESCAPE) {
			app.input |= INPUT_RESET;
		}
		if(event->keysym.sym == SDLK_a) {
			app.input |= PADDLE_1_UP;
		}
		if(event->keysym.sym == SDLK_z) {
			app.input |= PADDLE_1_DOWN;
		}
		if(event->keysym.sym == SDLK_QUOTE) {
			app.input |= PADDLE_2_UP;
		}
		if(event->keysym.sym == SDLK_SLASH) {
			app.input |= PADDLE_2_DOWN;
		}
	}
}

static void handle_key_up(SDL_KeyboardEvent *event) {
	if(event->repeat == 0) {
		if(event->keysym.sym == SDLK_a) {
			app.input ^= PADDLE_1_UP;
		}
		if(event->keysym.sym == SDLK_z) {
			app.input ^= PADDLE_1_DOWN;
		}
		if(event->keysym.sym == SDLK_QUOTE) {
			app.input ^= PADDLE_2_UP;
		}
		if(event->keysym.sym == SDLK_SLASH) {
			app.input ^= PADDLE_2_DOWN;
		}
	}
}

void process_input() {
	SDL_Event event;
	while(SDL_PollEvent(&event)) {
		switch(event.type) {
			case SDL_QUIT:
				app.input |= INPUT_RESET;
				break;
			case SDL_KEYDOWN:
				handle_key_down(&event.key);
			break;
			case SDL_KEYUP:
				handle_key_up(&event.key);
			break;
		}
	}
}