/*
 *  Copyright (C) 2005-2018 Team Kodi
 *  This file is part of Kodi - https://kodi.tv
 *
 *  SPDX-License-Identifier: GPL-2.0-or-later
 *  See LICENSES/README.md for more information.
 */

#include "utils/JSONVariantParser.h"
#include "utils/Variant.h"

#include <gtest/gtest.h>

TEST(TestJSONVariantParser, CannotParseNullptr)
{
  CVariant variant;
  ASSERT_FALSE(CJSONVariantParser::Parse(nullptr, variant));
}

TEST(TestJSONVariantParser, CannotParseEmptyString)
{
  CVariant variant;
  ASSERT_FALSE(CJSONVariantParser::Parse("", variant));
  ASSERT_FALSE(CJSONVariantParser::Parse(std::string(), variant));
}

TEST(TestJSONVariantParser, CannotParseInvalidJson)
{
  CVariant variant;
  ASSERT_FALSE(CJSONVariantParser::Parse("{", variant));
  ASSERT_FALSE(CJSONVariantParser::Parse("}", variant));
  ASSERT_FALSE(CJSONVariantParser::Parse("[", variant));
  ASSERT_FALSE(CJSONVariantParser::Parse("]", variant));
  ASSERT_FALSE(CJSONVariantParser::Parse("foo", variant));
}

TEST(TestJSONVariantParser, CanParseNull)
{
  CVariant variant;
  ASSERT_TRUE(CJSONVariantParser::Parse("null", variant));
  ASSERT_TRUE(variant.isNull());
}

TEST(TestJSONVariantParser, CanParseBoolean)
{
  CVariant variant;
  ASSERT_TRUE(CJSONVariantParser::Parse("true", variant));
  ASSERT_TRUE(variant.isBoolean());
  ASSERT_TRUE(variant.asBoolean());

  ASSERT_TRUE(CJSONVariantParser::Parse("false", variant));
  ASSERT_TRUE(variant.isBoolean());
  ASSERT_FALSE(variant.asBoolean());
}

TEST(TestJSONVariantParser, CanParseSignedInteger)
{
  CVariant variant;
  ASSERT_TRUE(CJSONVariantParser::Parse("-1", variant));
  ASSERT_TRUE(variant.isInteger());
  ASSERT_EQ(-1, variant.asInteger());
}

TEST(TestJSONVariantParser, CanParseUnsignedInteger)
{
  CVariant variant;
  ASSERT_TRUE(CJSONVariantParser::Parse("0", variant));
  ASSERT_TRUE(variant.isUnsignedInteger());
  ASSERT_EQ(0U, variant.asUnsignedInteger());

  ASSERT_TRUE(CJSONVariantParser::Parse("1", variant));
  ASSERT_TRUE(variant.isUnsignedInteger());
  ASSERT_EQ(1U, variant.asUnsignedInteger());
}

TEST(TestJSONVariantParser, CanParseSignedInteger64)
{
  CVariant variant;
  ASSERT_TRUE(CJSONVariantParser::Parse("-4294967296", variant));
  ASSERT_TRUE(variant.isInteger());
  ASSERT_EQ(-4294967296, variant.asInteger());
}

TEST(TestJSONVariantParser, CanParseUnsignedInteger64)
{
  CVariant variant;
  ASSERT_TRUE(CJSONVariantParser::Parse("4294967296", variant));
  ASSERT_TRUE(variant.isUnsignedInteger());
  ASSERT_EQ(4294967296U, variant.asUnsignedInteger());
}

TEST(TestJSONVariantParser, CanParseDouble)
{
  CVariant variant;
  ASSERT_TRUE(CJSONVariantParser::Parse("0.0", variant));
  ASSERT_TRUE(variant.isDouble());
  ASSERT_EQ(0.0, variant.asDouble());

  ASSERT_TRUE(CJSONVariantParser::Parse("1.0", variant));
  ASSERT_TRUE(variant.isDouble());
  ASSERT_EQ(1.0, variant.asDouble());

  ASSERT_TRUE(CJSONVariantParser::Parse("-1.0", variant));
  ASSERT_TRUE(variant.isDouble());
  ASSERT_EQ(-1.0, variant.asDouble());
}

TEST(TestJSONVariantParser, CanParseString)
{
  CVariant variant;
  ASSERT_TRUE(CJSONVariantParser::Parse("\"\"", variant));
  ASSERT_TRUE(variant.isString());
  ASSERT_TRUE(variant.empty());

  ASSERT_TRUE(CJSONVariantParser::Parse("\"foo\"", variant));
  ASSERT_TRUE(variant.isString());
  ASSERT_STREQ("foo", variant.asString().c_str());

  ASSERT_TRUE(CJSONVariantParser::Parse("\"foo bar\"", variant));
  ASSERT_TRUE(variant.isString());
  ASSERT_STREQ("foo bar", variant.asString().c_str());
}

TEST(TestJSONVariantParser, CanParseObject)
{
  CVariant variant;
  ASSERT_TRUE(CJSONVariantParser::Parse("{}", variant));
  ASSERT_TRUE(variant.isObject());
  ASSERT_TRUE(variant.empty());

  variant.clear();
  ASSERT_TRUE(CJSONVariantParser::Parse("{ \"foo\": \"bar\" }", variant));
  ASSERT_TRUE(variant.isObject());
  ASSERT_TRUE(variant.isMember("foo"));
  ASSERT_TRUE(variant["foo"].isString());
  ASSERT_STREQ("bar", variant["foo"].asString().c_str());

  variant.clear();
  ASSERT_TRUE(CJSONVariantParser::Parse("{ \"foo\": \"bar\", \"bar\": true }", variant));
  ASSERT_TRUE(variant.isObject());
  ASSERT_TRUE(variant.isMember("foo"));
  ASSERT_TRUE(variant["foo"].isString());
  ASSERT_STREQ("bar", variant["foo"].asString().c_str());
  ASSERT_TRUE(variant.isMember("bar"));
  ASSERT_TRUE(variant["bar"].isBoolean());
  ASSERT_TRUE(variant["bar"].asBoolean());

  variant.clear();
  ASSERT_TRUE(CJSONVariantParser::Parse("{ \"foo\": { \"sub-foo\": \"bar\" } }", variant));
  ASSERT_TRUE(variant.isObject());
  ASSERT_TRUE(variant.isMember("foo"));
  ASSERT_TRUE(variant["foo"].isObject());
  ASSERT_TRUE(variant["foo"].isMember("sub-foo"));
  ASSERT_TRUE(variant["foo"]["sub-foo"].isString());
  ASSERT_STREQ("bar", variant["foo"]["sub-foo"].asString().c_str());
}

TEST(TestJSONVariantParser, CanParseArray)
{
  CVariant variant;
  ASSERT_TRUE(CJSONVariantParser::Parse("[]", variant));
  ASSERT_TRUE(variant.isArray());
  ASSERT_TRUE(variant.empty());

  variant.clear();
  ASSERT_TRUE(CJSONVariantParser::Parse("[ true ]", variant));
  ASSERT_TRUE(variant.isArray());
  ASSERT_EQ(1U, variant.size());
  ASSERT_TRUE(variant[0].isBoolean());
  ASSERT_TRUE(variant[0].asBoolean());

  variant.clear();
  ASSERT_TRUE(CJSONVariantParser::Parse("[ true, \"foo\" ]", variant));
  ASSERT_TRUE(variant.isArray());
  ASSERT_EQ(2U, variant.size());
  ASSERT_TRUE(variant[0].isBoolean());
  ASSERT_TRUE(variant[0].asBoolean());
  ASSERT_TRUE(variant[1].isString());
  ASSERT_STREQ("foo", variant[1].asString().c_str());

  variant.clear();
  ASSERT_TRUE(CJSONVariantParser::Parse("[ { \"foo\": \"bar\" } ]", variant));
  ASSERT_TRUE(variant.isArray());
  ASSERT_EQ(1U, variant.size());
  ASSERT_TRUE(variant[0].isObject());
  ASSERT_TRUE(variant[0].isMember("foo"));
  ASSERT_TRUE(variant[0]["foo"].isString());
  ASSERT_STREQ("bar", variant[0]["foo"].asString().c_str());
}