package dev.peerat.parser.java.element.function;

import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.jupiter.api.Assertions.assertEquals;

import java.lang.reflect.Modifier;
import java.util.List;

import dev.peerat.parser.java.Class;
import dev.peerat.parser.java.Function;
import dev.peerat.parser.java.JavaElement;
import dev.peerat.parser.java.Variable;
import dev.peerat.parser.java.element.BaseElementTests;

public class ConstructorFunction extends BaseElementTests{
	
	{
		register(
				"package be.jeffcheasey88;"
				+ ""
				+ "public static final class Test{ "
				+ "    Test(){}"
				+ "}",
				(javafile) -> {
					Class clazz = checkClass(javafile);
					List<JavaElement> elements = clazz.getElements();
					assertNotNull(elements);
					assertEquals(1, elements.size());
					Function function = checkFunction(elements.get(0));
					assertNotNull(function.getName());
					assertEquals(function.getName().getValue(), function.getReturnType().getValue());
					assertEquals(0, function.getElements().size());
					assertEquals(0, function.getModifier());
					assertNull(function.getParameters());
				});
	
		register(
				"package be.jeffcheasey88;"
				+ ""
				+ "public static final class Test{ "
				+ "    public Test(){}"
				+ "}",
				(javafile) -> {
					Class clazz = checkClass(javafile);
					List<JavaElement> elements = clazz.getElements();
					assertNotNull(elements);
					assertEquals(1, elements.size());
					Function function = checkFunction(elements.get(0));
					assertNotNull(function.getName());
					assertEquals(0, function.getElements().size());
					assertEquals(Modifier.PUBLIC, function.getModifier());
					assertNull(function.getParameters());
				});
		
		register(
				"package be.jeffcheasey88;"
				+ ""
				+ "public static final class Test{ "
				+ "    private Test(){}"
				+ "}",
				(javafile) -> {
					Class clazz = checkClass(javafile);
					List<JavaElement> elements = clazz.getElements();
					assertNotNull(elements);
					assertEquals(1, elements.size());
					Function function = checkFunction(elements.get(0));
					assertNotNull(function.getName());
					assertEquals(0, function.getElements().size());
					assertEquals(Modifier.PRIVATE, function.getModifier());
					assertNull(function.getParameters());
				});
		
		register(
				"package be.jeffcheasey88;"
				+ ""
				+ "public static final class Test{ "
				+ "    public Test(int i){}"
				+ "}",
				(javafile) -> {
					Class clazz = checkClass(javafile);
					List<JavaElement> elements = clazz.getElements();
					assertNotNull(elements);
					assertEquals(1, elements.size());
					Function function = checkFunction(elements.get(0));
					assertNotNull(function.getName());
					assertEquals(0, function.getElements().size());
					assertEquals(Modifier.PUBLIC, function.getModifier());
					assertEquals(1, function.getParameters().size());
					Variable param1 = checkVariable(function.getParameters().get(0));
					assertEquals("i", param1.getName().getValue());
					assertEquals("int", param1.getType().getValue());
					assertNull(param1.getValue());
				});
		
		register(
				"package be.jeffcheasey88;"
				+ ""
				+ "public static final class Test{ "
				+ "    public Test(int i, int j){}"
				+ "}",
				(javafile) -> {
					Class clazz = checkClass(javafile);
					List<JavaElement> elements = clazz.getElements();
					assertNotNull(elements);
					assertEquals(1, elements.size());
					Function function = checkFunction(elements.get(0));
					assertNotNull(function.getName());
					assertEquals(0, function.getElements().size());
					assertEquals(Modifier.PUBLIC, function.getModifier());
					assertEquals(2, function.getParameters().size());
					Variable param1 = checkVariable(function.getParameters().get(0));
					Variable param2 = checkVariable(function.getParameters().get(1));
					assertEquals("i", param1.getName().getValue());
					assertEquals("int", param1.getType().getValue());
					assertNull(param1.getValue());
					assertEquals("j", param2.getName().getValue());
					assertEquals("int", param2.getType().getValue());
					assertNull(param2.getValue());
				});
		
		register(
				"package be.jeffcheasey88;"
				+ ""
				+ "public static final class Test{ "
				+ "    public Test(int i, int j) throws Exception{}"
				+ "}",
				(javafile) -> {
					Class clazz = checkClass(javafile);
					List<JavaElement> elements = clazz.getElements();
					assertNotNull(elements);
					assertEquals(1, elements.size());
					Function function = checkFunction(elements.get(0));
					assertNotNull(function.getName());
					assertEquals(0, function.getElements().size());
					assertEquals(Modifier.PUBLIC, function.getModifier());
					assertEquals(2, function.getParameters().size());
					Variable param1 = checkVariable(function.getParameters().get(0));
					Variable param2 = checkVariable(function.getParameters().get(1));
					assertEquals("i", param1.getName().getValue());
					assertEquals("int", param1.getType().getValue());
					assertNull(param1.getValue());
					assertEquals("j", param2.getName().getValue());
					assertEquals("int", param2.getType().getValue());
					assertNull(param2.getValue());
					
					assertNotNull(function.getThrowables());
					assertEquals("Exception", function.getThrowables().get(0).getValue());
				});
	}
}