/*
 * Copyright 2015, The Querydsl Team (http://www.querydsl.com/team)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.querydsl.core.types;

import static com.querydsl.core.alias.Alias.$;
import static com.querydsl.core.alias.Alias.alias;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;

import java.lang.reflect.Field;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import org.junit.Test;


public class StringTest {

    private static class DummyTemplates extends Templates {

    }

    @SuppressWarnings("unchecked")
    @Test
    public void patternAvailability() throws IllegalArgumentException, IllegalAccessException {
        Templates ops = new DummyTemplates();
        Set<Field> missing = new HashSet<Field>();
        for (Field field : Ops.class.getFields()) {
            if (field.getType().equals(Operator.class)) {
                Operator op = (Operator) field.get(null);
                if (ops.getTemplate(op) == null) {
                    missing.add(field);
                }
            }
        }
        for (Class<?> cl : Ops.class.getClasses()) {
            for (Field field : cl.getFields()) {
                if (field.getType().equals(Operator.class)) {
                    Operator op = (Operator) field.get(null);
                    if (ops.getTemplate(op) == null) {
                        missing.add(field);
                    }
                }
            }
        }

        if (!missing.isEmpty()) {
            for (Field field : missing) {
                System.err.println(field.getName());
            }
            fail();
        }
    }

    @SuppressWarnings("unchecked")
    @Test
    public void toString_() {
        SomeType alias = alias(SomeType.class, "alias");

        // Path toString
        assertEquals("alias.name", $(alias.getName()).toString());
        assertEquals("alias.ref.name", $(alias.getRef().getName()).toString());
        assertEquals("alias.refs.get(0)", $(alias.getRefs().get(0)).toString());

        // Operation toString
        assertEquals("lower(alias.name)", $(alias.getName()).lower().toString());

        // ConstructorExpression
        ConstructorExpression<SomeType> someType = new ConstructorExpression<SomeType>(SomeType.class, new Class<?>[]{SomeType.class}, $(alias));
        assertEquals("new SomeType(alias)", someType.toString());

        // ArrayConstructorExpression
        ArrayConstructorExpression<SomeType> someTypeArray = new ArrayConstructorExpression<SomeType>(SomeType[].class,$(alias));
        assertEquals("new SomeType[](alias)", someTypeArray.toString());
    }


    public static class SomeType {

        public SomeType() { }

        public SomeType(SomeType st) { }

        public String getName() {
            return "";
        }

        public SomeType getRef() {
            return null;
        }

        public List<SomeType> getRefs() {
            return null;
        }

        public int getAmount() {
            return 0;
        }
    }

}