package com.mattrixwv.cipherstream.controller.monosubstitution;


import static org.junit.jupiter.api.Assertions.*;

import java.util.List;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Tag;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.mockito.InjectMocks;
import org.mockito.junit.jupiter.MockitoExtension;
import org.springframework.test.util.ReflectionTestUtils;

import com.mattrixwv.cipherstream.exception.InvalidCipherParameterException;
import com.mattrixwv.cipherstream.utils.CipherInfoUtil;
import com.mattrixwv.cipherstream.utils.CipherParameterUtil;

import tools.jackson.databind.ObjectMapper;
import tools.jackson.databind.node.ObjectNode;


@Tag("unit-test")
@ExtendWith(MockitoExtension.class)
public class VigenereCipherControllerTest{
	@InjectMocks
	private VigenereCipherController vigenereCipherController;
	//Fields
	private static final ObjectMapper mapper = new ObjectMapper();
	private static final ObjectNode blankNode = mapper.createObjectNode();
	private static final String VIGENERE_KEYWORD = CipherParameterUtil.KEYWORD;
	private static final String VIGENERE_INPUT_STRING = "Message to^encode";
	private static final String VIGENERE_OUTPUT_STRING = "Wiqooxh ds^cjqfgo";
	private static final String vigenereName = "vigenereName";
	private static final String vigenereDescription = "vigenereDescription";
	private static final List<String> vigenereExplanation = List.of("vigenereExplanation1", "vigenereExplanation2", "vigenereExplanation3");
	private static final List<String> vigenereFacts = List.of("vigenereFact1", "vigenereFact2", "vigenereFact3");


	@BeforeEach
	public void setup(){
		ReflectionTestUtils.setField(vigenereCipherController, "vigenereName", vigenereName);
		ReflectionTestUtils.setField(vigenereCipherController, "vigenereDescription", vigenereDescription);
		ReflectionTestUtils.setField(vigenereCipherController, "vigenereExplanation", vigenereExplanation);
		ReflectionTestUtils.setField(vigenereCipherController, "vigenereFacts", vigenereFacts);
	}

	@Test
	public void tetGetCipherInfo(){
		ObjectNode infoNode = CipherInfoUtil.buildInfoNode(vigenereName, vigenereDescription, vigenereExplanation, vigenereFacts);


		ObjectNode returnedJson = vigenereCipherController.getCipherInfo();


		assertEquals(infoNode, returnedJson);
	}

	@Test
	public void testEncodeVigenere(){
		ObjectNode cipherParams = generateParams(VIGENERE_KEYWORD, VIGENERE_INPUT_STRING);


		ObjectNode returnedJson = vigenereCipherController.encodeVigenere(cipherParams);


		assertEquals(cipherParams, returnedJson);
		assertEquals(VIGENERE_OUTPUT_STRING, returnedJson.get(CipherParameterUtil.OUTPUT_STRING).asString());
	}

	@Test
	public void testEncodeVigenere_invalidParameters(){
		assertThrows(InvalidCipherParameterException.class, () -> {
			vigenereCipherController.encodeVigenere(blankNode);
		});
	}

	@Test
	public void testDecodeVigenere(){
		ObjectNode cipherParams = generateParams(VIGENERE_KEYWORD, VIGENERE_OUTPUT_STRING);


		ObjectNode returnedJson = vigenereCipherController.decodeVigenere(cipherParams);


		assertEquals(cipherParams, returnedJson);
		assertEquals(VIGENERE_INPUT_STRING, returnedJson.get(CipherParameterUtil.OUTPUT_STRING).asString());
	}

	@Test
	public void testDecodeVigenere_invalidparameters(){
		assertThrows(InvalidCipherParameterException.class, () -> {
			vigenereCipherController.decodeVigenere(blankNode);
		});
	}

	private ObjectNode generateParams(String keyword, String inputString){
		ObjectNode cipherParams = mapper.createObjectNode();

		cipherParams.put(CipherParameterUtil.PRESERVE_CAPITALS, true);
		cipherParams.put(CipherParameterUtil.PRESERVE_WHITESPACE, true);
		cipherParams.put(CipherParameterUtil.PRESERVE_SYMBOLS, true);
		cipherParams.put(CipherParameterUtil.KEYWORD, keyword);
		cipherParams.put(CipherParameterUtil.INPUT_STRING, inputString);

		return cipherParams;
	}
}