package com.ipsen.medical.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.web.SecurityFilterChain;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.CorsConfigurationSource;
import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
import org.springframework.web.reactive.function.client.WebClient;

import java.util.Arrays;

import com.ipsen.medical.security.PlainTextPasswordEncoder;

/**
 * Spring Security配置
 */
@Configuration
@EnableWebSecurity
public class SecurityConfig {

    @Bean
    public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
        http
            .cors(cors -> cors.configurationSource(corsConfigurationSource()))
            .csrf(csrf -> csrf.disable())
            .authorizeHttpRequests(authz -> authz
                .anyRequest().permitAll()
            )
            .httpBasic(httpBasic -> httpBasic.disable())
            .formLogin(formLogin -> formLogin.disable());

        return http.build();
    }

    @Bean
    public CorsConfigurationSource corsConfigurationSource() {
        CorsConfiguration configuration = new CorsConfiguration();
        configuration.setAllowedOriginPatterns(Arrays.asList("*"));
        configuration.setAllowedMethods(Arrays.asList("GET", "POST", "PUT", "DELETE", "OPTIONS"));
        configuration.setAllowedHeaders(Arrays.asList("*"));
        configuration.setAllowCredentials(true);
        
        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
        source.registerCorsConfiguration("/**", configuration);
        return source;
    }

    @Bean
    public PasswordEncoder passwordEncoder() {
        return new PlainTextPasswordEncoder();
    }
    
    @Bean
    public WebClient.Builder webClientBuilder() {
        return WebClient.builder()
                .codecs(configurer -> configurer.defaultCodecs().maxInMemorySize(10 * 1024 * 1024)); // 10MB buffer
    }

}