/*
 * Copyright (C) 2007-2010 Júlio Vilmar Gesser.
 * Copyright (C) 2011, 2013-2024 The JavaParser Team.
 *
 * This file is part of JavaParser.
 *
 * JavaParser can be used either under the terms of
 * a) the GNU Lesser General Public License as published by
 *     the Free Software Foundation, either version 3 of the License, or
 *     (at your option) any later version.
 * b) the terms of the Apache License
 *
 * You should have received a copy of both licenses in LICENCE.LGPL and
 * LICENCE.APACHE. Please refer to those files for details.
 *
 * JavaParser is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 */

package com.github.javaparser.ast.body;

import static com.github.javaparser.StaticJavaParser.parse;
import static com.github.javaparser.StaticJavaParser.parseBodyDeclaration;
import static org.junit.jupiter.api.Assertions.*;

import com.github.javaparser.StaticJavaParser;
import com.github.javaparser.ast.CompilationUnit;
import com.github.javaparser.ast.Modifier;
import com.github.javaparser.ast.Modifier.Keyword;
import com.github.javaparser.ast.NodeList;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;

class FieldDeclarationTest {
    @Test
    void wofjweoifj() {
        CompilationUnit compilationUnit = parse("" + "class A {\n" + "    int a, b;\n" + "}");

        BodyDeclaration<?> declaration = compilationUnit.getType(0).getMembers().get(0);
        FieldDeclaration fieldDeclaration = declaration.asFieldDeclaration();
        VariableDeclarator var1 = fieldDeclaration.getVariables().get(0);
        VariableDeclarator var2 = fieldDeclaration.getVariables().get(1);
        assertEquals(var1, var1.getType().getParentNode().get());
        assertEquals(var2, var2.getType().getParentNode().get());
    }

    @Test
    void setModifiersPrimitiveType() {
        FieldDeclaration field =
                parseBodyDeclaration("public static final int var = 1;").asFieldDeclaration();
        testChangingModifiers(field);
    }

    @Test
    void setModifiersNonPrimitiveType() {
        FieldDeclaration field =
                parseBodyDeclaration("public static final String var = \"a\";").asFieldDeclaration();
        testChangingModifiers(field);
    }

    private void testChangingModifiers(FieldDeclaration field) {
        NodeList<Modifier> modifiers = field.getModifiers();
        assertTrue(modifiers.contains(Modifier.publicModifier()));
        assertTrue(modifiers.contains(Modifier.staticModifier()));
        assertTrue(modifiers.contains(Modifier.finalModifier()));
        assertEquals(3, modifiers.size());

        field.setModifiers(new NodeList<Modifier>());
        modifiers = field.getModifiers();
        assertEquals(0, modifiers.size());

        field.setModifiers(Keyword.PRIVATE, Keyword.SYNCHRONIZED);
        modifiers = field.getModifiers();
        assertTrue(modifiers.contains(Modifier.privateModifier()));
        assertTrue(modifiers.contains(Modifier.synchronizedModifier()));
        assertEquals(2, modifiers.size());
    }

    @Test
    void interfaceFieldTest() {
        CompilationUnit compilationUnit = parse("" + "interface A {\n"
                + "    int a = 1;\n"
                + "    static int a_s = 1;\n"
                + "    final int a_f = 1;\n"
                + "    static final int a_s_f = 1;\n"
                + "    String b = \"b\";\n"
                + "    static String b_s = \"b\";\n"
                + "    final String b_f = \"b\";\n"
                + "    static final String b_s_f = \"b\";\n"
                + "}\n");
        for (int i = 0; i < 8; ++i) {
            BodyDeclaration<?> declaration =
                    compilationUnit.getType(0).getMembers().get(i);
            FieldDeclaration fieldDeclaration = declaration.asFieldDeclaration();
            Assertions.assertTrue(fieldDeclaration.isStatic());
            Assertions.assertTrue(fieldDeclaration.isFinal());
        }
    }

    /**
     * Regression test for issue #4056.
     */
    @Test
    void testEnumWithPrivateFieldInsideInterface() {
        String source = "interface Outer {\n" + "  enum Numbers {\n"
                + "    ONE(1),\n"
                + "    TWO(2),\n"
                + "    THREE(3);\n"
                + "\n"
                + "    Numbers(int i) {\n"
                + "      this.i = i;\n"
                + "    }\n"
                + "\n"
                + "    private int i;\n"
                + "  }\n"
                + "}";
        CompilationUnit cu = StaticJavaParser.parse(source);
        FieldDeclaration i = cu.getTypes()
                .get(0)
                .asClassOrInterfaceDeclaration()
                .getMembers()
                .get(0)
                .asEnumDeclaration()
                .getFields()
                .get(0);
        assertAll(() -> assertFalse(i.isPublic()), () -> assertFalse(i.isStatic()), () -> assertFalse(i.isFinal()));
    }
}
