package com.jsoniter;

import com.jsoniter.spi.*;
import junit.framework.TestCase;

import java.io.IOException;
import java.util.*;

import static org.junit.Assert.assertArrayEquals;

public class TestGenerics extends TestCase {

    static {
//        JsonIterator.setMode(DecodingMode.DYNAMIC_MODE_AND_MATCH_FIELD_STRICTLY);
    }

    public void test_int_list() throws IOException {
        JsonIterator iter = JsonIterator.parse("[1,2,3]");
        List<Integer> val = iter.read(new TypeLiteral<ArrayList<Integer>>() {
        });
        assertArrayEquals(new Integer[]{1, 2, 3}, val.toArray(new Integer[0]));
    }

    public void test_string_list() throws IOException {
        JsonIterator iter = JsonIterator.parse("['hello', 'world']".replace('\'', '"'));
        List<String> val = iter.read(new TypeLiteral<List<String>>() {
        });
        assertArrayEquals(new String[]{"hello", "world"}, val.toArray(new String[0]));
    }

    public void test_linked_list() throws IOException {
        JsonIterator iter = JsonIterator.parse("['hello', 'world']".replace('\'', '"'));
        List<String> val = iter.read(new TypeLiteral<LinkedList<String>>() {
        });
        assertArrayEquals(new String[]{"hello", "world"}, val.toArray(new String[0]));
    }

    public void test_string_set() throws IOException {
        JsonIterator iter = JsonIterator.parse("['hello']".replace('\'', '"'));
        Set<String> val = iter.read(new TypeLiteral<Set<String>>() {
        });
        assertArrayEquals(new String[]{"hello"}, val.toArray(new String[0]));
    }

    public void test_string_map() throws IOException {
        JsonIterator iter = JsonIterator.parse("{'hello': 'world'}".replace('\'', '"'));
        Map<String, String> val = iter.read(new TypeLiteral<Map<String, String>>() {
        });
        assertEquals("world", val.get("hello"));
    }

    public void test_integer_map() throws IOException {
        JsonIterator iter = JsonIterator.parse("{'hello': 1}".replace('\'', '"'));
        Map<String, Integer> val = iter.read(new TypeLiteral<Map<String, Integer>>() {
        });
        assertEquals(Integer.valueOf(1), val.get("hello"));
    }

    public void test_list_of_list() throws Exception {
        JsonIterator iter = JsonIterator.parse("[[1,2],[3,4]]");
        List<List<Integer>> listOfList = iter.read(new TypeLiteral<List<List<Integer>>>() {
        });
        assertEquals(Integer.valueOf(4), listOfList.get(1).get(1));
    }

    public void test_complex_object() throws IOException {
        JsonIterator iter = JsonIterator.parse("{'field1': 100, 'field2': [[1,2],[3,4]]}".replace('\'', '"'));
        ComplexObject val = iter.read(ComplexObject.class);
        assertEquals(100, val.field1);
        assertEquals(Integer.valueOf(4), val.field2.get(1).get(1));
    }

    public static class Class1<A, B> {
        public List<A> field1;
        public B[] field2;
        public List<B>[] field3;
        public List<A[]> field4;

        public List<Map<A, List<B>>> getField6() {
            return null;
        }

        public <T> T getField7() {
            return null;
        }

        public void setField8(List<A> a) {
        }
    }

    public static class Class2<C, D, E> extends Class1<C, D> {
        public E field5;
    }

    public static class Class3 extends Class2<String, Integer, Float> {
    }

    public void test_generic_super_class() throws IOException {
        ClassDescriptor desc = ClassDescriptor.getDecodingClassDescriptor(new ClassInfo(Class3.class), true);
        Map<String, String> fieldDecoderCacheKeys = new HashMap<String, String>();
        for (Binding field : desc.allDecoderBindings()) {
            fieldDecoderCacheKeys.put(field.name, field.valueTypeLiteral.getDecoderCacheKey());
        }
        for (Binding field : ClassDescriptor.getEncodingClassDescriptor(new ClassInfo(Class3.class), true).getters) {
            fieldDecoderCacheKeys.put(field.name, field.valueTypeLiteral.getDecoderCacheKey());
        }
        assertTrue(fieldDecoderCacheKeys.get("field1").endsWith("decoder.java.util.List_java.lang.String"));
        assertTrue(fieldDecoderCacheKeys.get("field2").endsWith("decoder.java.lang.Integer_array"));
        assertTrue(fieldDecoderCacheKeys.get("field3").endsWith("decoder.java.util.List_java.lang.Integer_array"));
        assertTrue(fieldDecoderCacheKeys.get("field4").endsWith("decoder.java.util.List_java.lang.String_array"));
        assertTrue(fieldDecoderCacheKeys.get("field5").endsWith("decoder.java.lang.Float"));
        assertTrue(fieldDecoderCacheKeys.get("field6").endsWith("decoder.java.util.List_java.util.Map_java.lang.String_java.util.List_java.lang.Integer"));
        assertTrue(fieldDecoderCacheKeys.get("field7").endsWith("decoder.java.lang.Object"));
        assertTrue(fieldDecoderCacheKeys.get("field8").endsWith("decoder.java.util.List_java.lang.String"));
    }

    public static class NetRes<T> {
        public int code;
        public String desc;
        public T results;
    }

    public static class User {
        public String name;
        public int age;
    }

    public void test_issue_103() {
        String json = "{'code':1, 'desc':'OK', 'results':{'name':'aaa', 'age':18}}".replace('\'', '\"');
        NetRes res = JsonIterator.deserialize(json, new TypeLiteral<NetRes<User>>() {
        });
        assertEquals(User.class, res.results.getClass());
    }

    public static class TestObject7 {
        public List<?> field;
    }

    public void test_wildcard() throws IOException {
        TestObject7 obj = JsonIterator.deserialize("{\"field\":[1]}", TestObject7.class);
        assertEquals(1, obj.field.get(0));
    }
}