Backend/src/main/java/cc.fascinated/Main.java

package cc.fascinated;

import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import lombok.NonNull;
import lombok.SneakyThrows;
import lombok.extern.log4j.Log4j2;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

import java.io.File;
import java.net.http.HttpClient;
import java.nio.file.Files;
import java.nio.file.StandardCopyOption;
import java.util.Objects;

@Log4j2
@SpringBootApplication
public class Main {

    public static final Gson GSON = new GsonBuilder()
            .setDateFormat("MM-dd-yyyy HH:mm:ss")
            .create();
    public static final HttpClient HTTP_CLIENT = HttpClient.newHttpClient();

    @SneakyThrows
    public static void main(String[] args) {
        File config = new File("application.yml");
        if (!config.exists()) { // Saving the default config if it doesn't exist locally
            Files.copy(Objects.requireNonNull(Main.class.getResourceAsStream("/application.yml")), config.toPath(), StandardCopyOption.REPLACE_EXISTING);
            log.info("Saved the default configuration to '{}', please re-launch the application", // Log the default config being saved
                    config.getAbsolutePath()
            );
            return;
        }
        log.info("Found configuration at '{}'", config.getAbsolutePath()); // Log the found config

        SpringApplication.run(Main.class, args); // Start the application
    }

    @Bean
    public WebMvcConfigurer corsConfigurer() {
        return new WebMvcConfigurer() {
            @Override
            public void addCorsMappings(@NonNull CorsRegistry registry) {
                // Allow all origins to access the API
                registry.addMapping("/**")
                        .allowedOrigins("*") // Allow all origins
                        .allowedMethods("*") // Allow all methods
                        .allowedHeaders("*"); // Allow all headers
            }
        };
    }
}