package com.example.demoendpoint;

import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.springframework.boot.actuate.endpoint.annotation.Endpoint;
import org.springframework.boot.actuate.endpoint.annotation.ReadOperation;
import org.springframework.boot.actuate.endpoint.annotation.Selector;
import org.springframework.stereotype.Component;
import org.springframework.util.Assert;

@Component
@Endpoint(id="my-params")
public class MyCustomEndpoint {
	  @ReadOperation
	  public Map<String, List<Parameter>> showParameters() {
			Map<String, List<Parameter>> params =  new HashMap<>();
			params.put("cat1", Arrays.asList(new Parameter("url", "toto"), new Parameter("user", "titi")));
			params.put("cat2", Arrays.asList(new Parameter("key.1", "secret"), new Parameter("key.2", "sE3reT")));
			params.put("cat3", Arrays.asList(new Parameter("other1", "foo"), new Parameter("other2", "bar")));
			return params;
	  }
	  @ReadOperation
	  public List<Parameter> showParametersByCategory(@Selector String category) {
			Assert.notNull(category, "category must not be null");
			switch (category) {
				case "cat1" : return Arrays.asList(new Parameter("url", "toto"), new Parameter("user", "titi"));
				case "cat2" : return Arrays.asList(new Parameter("key.1", "secret"), new Parameter("key.2", "sE3reT"));
				case "cat3" : return Arrays.asList(new Parameter("other1", "foo"), new Parameter("other2", "bar"));
				default : return Collections.emptyList();
			}
	  }
	  
	  private static class Parameter {
		private final String name;
		private final String value;

		Parameter(String name, String value) {
			this.name = name;
			this.value = value;
		}

		public String getName() {
			return name;
		}

		public String getValue() {
			return value;
		}
	  }
}