#include "argparser/argparser.h"
#include "gtest/gtest.h"

// TODO: test empty input for all types


TEST(Types, AutomaticUint8Type) {
  argparser::parser p{};
  argparser::type_handle_impl<uint8_t> uint8Type;
  argparser::parse_result pr;
  argparser::single_arg_handle<uint8_t> arg;
  uint8_t val;
  EXPECT_NO_THROW({
    uint8Type = p.basic_type<uint8_t>("uint8");
    arg = p.arg("a", uint8Type);
    pr = p.parse({"250"});
    val = arg->get(pr);
  });
  EXPECT_EQ(val, 250);
}

TEST(Types, AutomaticInt8Type) {
  argparser::parser p{};
  argparser::type_handle_impl<int8_t> int8Type;
  argparser::parse_result pr;
  argparser::single_arg_handle<int8_t> arg;
  int8_t val;
  EXPECT_NO_THROW({
    int8Type = p.basic_type<int8_t>("int8");
    arg = p.arg("a", int8Type);
    pr = p.parse({"-126"});
    val = arg->get(pr);
  });
  EXPECT_EQ(val, -126);
}

TEST(Types, AutomaticUint16Type) {
  argparser::parser p{};
  argparser::type_handle_impl<uint16_t> uint16Type;
  argparser::parse_result pr;
  argparser::single_arg_handle<uint16_t> arg;
  uint16_t val;
  EXPECT_NO_THROW({
    uint16Type = p.basic_type<uint16_t>("uint16");
    arg = p.arg("a", uint16Type);
    pr = p.parse({"65530"});
    val = arg->get(pr);
  });
  EXPECT_EQ(val, 65530);
}

TEST(Types, AutomaticInt16Type) {
  argparser::parser p{};
  argparser::type_handle_impl<int16_t> int16Type;
  argparser::parse_result pr;
  argparser::single_arg_handle<int16_t> arg;
  int16_t val;
  EXPECT_NO_THROW({
    int16Type = p.basic_type<int16_t>("int16");
    arg = p.arg("a", int16Type);
    pr = p.parse({"-32760"});
    val = arg->get(pr);
  });
  EXPECT_EQ(val, -32760);
}

TEST(Types, AutomaticUint32Type) {
  argparser::parser p{};
  argparser::type_handle_impl<uint32_t> uint32Type;
  argparser::parse_result pr;
  argparser::single_arg_handle<uint32_t> arg;
  uint32_t val;
  EXPECT_NO_THROW({
    uint32Type = p.basic_type<uint32_t>("uint32");
    arg = p.arg("a", uint32Type);
    pr = p.parse({"4294967290"});
    val = arg->get(pr);
  });
  EXPECT_EQ(val, 4294967290);
}

TEST(Types, AutomaticInt32Type) {
  argparser::parser p{};
  argparser::type_handle_impl<int32_t> int32Type;
  argparser::parse_result pr;
  argparser::single_arg_handle<int32_t> arg;
  int32_t val;
  EXPECT_NO_THROW({
    int32Type = p.basic_type<int32_t>("int32");
    arg = p.arg("a", int32Type);
    pr = p.parse({"-2147483645"});
    val = arg->get(pr);
  });
  EXPECT_EQ(val, -2147483645);
}

TEST(Types, AutomaticUint64Type) {
  argparser::parser p{};
  argparser::type_handle_impl<uint64_t> uint64Type;
  argparser::parse_result pr;
  argparser::single_arg_handle<uint64_t> arg;
  uint64_t val;
  EXPECT_NO_THROW({
    uint64Type = p.basic_type<uint64_t>("uint64");
    arg = p.arg("a", uint64Type);
    pr = p.parse({"18446744073709551612"});
    val = arg->get(pr);
  });
  EXPECT_EQ(val, 18446744073709551612ull);
}

TEST(Types, AutomaticInt64Type) {
  argparser::parser p{};
  argparser::type_handle_impl<int64_t> int64Type;
  argparser::parse_result pr;
  argparser::single_arg_handle<int64_t> arg;
  int64_t val;
  EXPECT_NO_THROW({
    int64Type = p.basic_type<int64_t>("int64");
    arg = p.arg("a", int64Type);
    pr = p.parse({"-9223372036854775803"});
    val = arg->get(pr);
  });
  EXPECT_EQ(val, -9223372036854775803);
}

TEST(Types, AutomaticFloatType) {
  argparser::parser p{};
  argparser::type_handle_impl<float> floatType;
  argparser::parse_result pr;
  argparser::single_arg_handle<float> arg;
  float val;
  EXPECT_NO_THROW({
    floatType = p.basic_type<float>("float");
    arg = p.arg("a", floatType);
    pr = p.parse({"23.45"});
    val = arg->get(pr);
  });
  EXPECT_EQ(val, 23.45f);
}

TEST(Types, AutomaticDoubleType) {
  argparser::parser p{};
  argparser::type_handle_impl<double> doubleType;
  argparser::parse_result pr;
  argparser::single_arg_handle<double> arg;
  double val;
  EXPECT_NO_THROW({
    doubleType = p.basic_type<double>("double");
    arg = p.arg("a", doubleType);
    pr = p.parse({"23.45"});
    val = arg->get(pr);
  });
  EXPECT_EQ(val, 23.45);
}

TEST(Types, AutomaticStringType) {
  argparser::parser p{};
  auto stringType = p.basic_type<std::string>("string");
  auto arg = p.arg("a", stringType);
  argparser::parse_result pr;
  EXPECT_NO_THROW(pr = p.parse({"foo bar"}));
  EXPECT_EQ(arg->get(pr), "foo bar");
  EXPECT_NO_THROW(pr = p.parse({"'foo bar'"}));
  EXPECT_EQ(arg->get(pr), "foo bar");
  EXPECT_NO_THROW(pr = p.parse({"\"foo bar\""}));
  EXPECT_EQ(arg->get(pr), "foo bar");
}

TEST(Types, AutomaticStringTypeBareEmptyString) {
  argparser::parser p{};
  auto stringType = p.basic_type<std::string, argparser::internal::parse_opt::BareString>("string");
  auto arg = p.arg("a", stringType);
  argparser::parse_result pr;
  EXPECT_NO_THROW(pr = p.parse({""}));
  EXPECT_EQ(arg->get(pr), "");
}

TEST(Types, AutomaticStringTypeSingleQuotedEmptyString) {
  argparser::parser p{};
  auto stringType = p.basic_type<std::string, argparser::internal::parse_opt::SingleQuotedString>("string");
  auto arg = p.arg("a", stringType);
  argparser::parse_result pr;
  EXPECT_NO_THROW(pr = p.parse({"''"}));
  EXPECT_EQ(arg->get(pr), "");
  EXPECT_THROW(pr = p.parse({""}), argparser::errors::type_parsing_error);
}

TEST(Types, AutomaticStringTypeDoubleQuotedEmptyString) {
  argparser::parser p{};
  auto stringType = p.basic_type<std::string, argparser::internal::parse_opt::DoubleQuotedString>("string");
  auto arg = p.arg("a", stringType);
  argparser::parse_result pr;
  EXPECT_NO_THROW(pr = p.parse({"\"\""}));
  EXPECT_EQ(arg->get(pr), "");
  EXPECT_THROW(pr = p.parse({""}), argparser::errors::type_parsing_error);
}

TEST(Types, AutomaticStringTypeBrokenQuote) {
  argparser::parser p{};
  auto stringType = p.basic_type<std::string>("string");
  auto arg = p.arg("a", stringType);
  argparser::parse_result pr;
  EXPECT_THROW(pr = p.parse({"'foobar"}), argparser::errors::type_parsing_error);
  EXPECT_THROW(pr = p.parse({"\"foobar"}), argparser::errors::type_parsing_error);
  EXPECT_THROW(pr = p.parse({"foo'bar"}), argparser::errors::type_parsing_error);
  EXPECT_THROW(pr = p.parse({"foo\"bar"}), argparser::errors::type_parsing_error);
  EXPECT_THROW(pr = p.parse({"foobar'"}), argparser::errors::type_parsing_error);
  EXPECT_THROW(pr = p.parse({"foobar\""}), argparser::errors::type_parsing_error);
}

TEST(Types, AutomaticStringTypeBareComma) {
  argparser::parser p{};
  auto stringType = p.basic_type<std::string>("string");
  auto arg = p.arg("a", stringType);
  argparser::parse_result pr;
  EXPECT_NO_THROW(pr = p.parse({"foo,bar"}));
  EXPECT_EQ(arg->get(pr), "foo,bar");
}

TEST(Types, AutomaticStringTypeNoBareCommaInTuple) {
  argparser::parser p{};
  auto stringType = p.basic_type<std::string>("string");
  auto uintType = p.basic_type<uint32_t>("uint");
  auto tupleType = p.tuple_type("tuple", stringType, uintType);
  auto arg = p.arg("a", tupleType);
  argparser::parse_result pr;
  EXPECT_THROW(pr = p.parse({"tuple(foo,bar, 2)"}), argparser::errors::type_parsing_error);
}

TEST(Types, AutomaticStringTypeBareWithWhitespaceInTuple) {
  argparser::parser p{};
  auto stringType = p.basic_type<std::string>("string");
  auto uintType = p.basic_type<uint32_t>("uint");
  auto tupleType = p.tuple_type("tuple", stringType, uintType);
  auto arg = p.arg("a", tupleType);
  argparser::parse_result pr;
  EXPECT_NO_THROW(pr = p.parse({"tuple( foo bar  , 2)"}));
  EXPECT_EQ(arg->get(pr), std::make_tuple(" foo bar  ", 2));
}

TEST(Types, AutomaticStringTypeExplicitAny) {
  argparser::parser p{};
  auto stringType = p.basic_type<std::string, argparser::internal::parse_opt::AnyString>("string");
  auto arg = p.arg("a", stringType);
  argparser::parse_result pr;
  EXPECT_NO_THROW(pr = p.parse({"foo bar"}));
  EXPECT_EQ(arg->get(pr), "foo bar");
  EXPECT_NO_THROW(pr = p.parse({"'foo bar'"}));
  EXPECT_EQ(arg->get(pr), "foo bar");
  EXPECT_NO_THROW(pr = p.parse({"\"foo bar\""}));
  EXPECT_EQ(arg->get(pr), "foo bar");
}

TEST(Types, AutomaticStringOnlyBare) {
  argparser::parser p{};
  auto stringType = p.basic_type<std::string, argparser::internal::parse_opt::BareString>("string");
  auto arg = p.arg("a", stringType);
  argparser::parse_result pr;
  EXPECT_NO_THROW(pr = p.parse({"foo bar"}));
  EXPECT_EQ(arg->get(pr), "foo bar");
  EXPECT_THROW(pr = p.parse({"'foo bar'"}), argparser::errors::type_parsing_error);
  EXPECT_THROW(pr = p.parse({"\"foo bar\""}), argparser::errors::type_parsing_error);
}

TEST(Types, AutomaticStringOnlySingleQuoted) {
  argparser::parser p{};
  auto stringType = p.basic_type<std::string, argparser::internal::parse_opt::SingleQuotedString>("string");
  auto arg = p.arg("a", stringType);
  argparser::parse_result pr;
  EXPECT_NO_THROW(pr = p.parse({"'foo bar'"}));
  EXPECT_EQ(arg->get(pr), "foo bar");
  EXPECT_THROW(pr = p.parse({"foo bar"}), argparser::errors::type_parsing_error);
  EXPECT_THROW(pr = p.parse({"\"foo bar\""}), argparser::errors::type_parsing_error);
}

TEST(Types, AutomaticStringOnlyDoubleQuoted) {
  argparser::parser p{};
  auto stringType = p.basic_type<std::string, argparser::internal::parse_opt::DoubleQuotedString>("string");
  auto arg = p.arg("a", stringType);
  argparser::parse_result pr;
  EXPECT_NO_THROW(pr = p.parse({"\"foo bar\""}));
  EXPECT_EQ(arg->get(pr), "foo bar");
  EXPECT_THROW(pr = p.parse({"foo bar"}), argparser::errors::type_parsing_error);
  EXPECT_THROW(pr = p.parse({"'foo bar'"}), argparser::errors::type_parsing_error);
}

TEST(Types, AutomaticStringOnlyQuoted) {
  argparser::parser p{};
  auto stringType = p.basic_type<std::string, argparser::internal::parse_opt::SingleQuotedString | argparser::internal::parse_opt::DoubleQuotedString>("string");
  auto arg = p.arg("a", stringType);
  argparser::parse_result pr;
  EXPECT_NO_THROW(pr = p.parse({"\"foo bar\""}));
  EXPECT_EQ(arg->get(pr), "foo bar");
  EXPECT_NO_THROW(pr = p.parse({"'foo bar'"}));
  EXPECT_EQ(arg->get(pr), "foo bar");
  EXPECT_THROW(pr = p.parse({"foo bar"}), argparser::errors::type_parsing_error);
}

TEST(Types, AutomaticStringOnlyBareOrSingleQuoted) {
  argparser::parser p{};
  auto stringType = p.basic_type<std::string, argparser::internal::parse_opt::SingleQuotedString | argparser::internal::parse_opt::BareString>("string");
  auto arg = p.arg("a", stringType);
  argparser::parse_result pr;
  EXPECT_NO_THROW(pr = p.parse({"'foo bar'"}));
  EXPECT_EQ(arg->get(pr), "foo bar");
  EXPECT_NO_THROW(pr = p.parse({"foo bar"}));
  EXPECT_EQ(arg->get(pr), "foo bar");
  EXPECT_THROW(pr = p.parse({"\"foo bar\""}), argparser::errors::type_parsing_error);
}

TEST(Types, AutomaticStringOnlyBareOrDoubleQuoted) {
  argparser::parser p{};
  auto stringType = p.basic_type<std::string, argparser::internal::parse_opt::DoubleQuotedString | argparser::internal::parse_opt::BareString>("string");
  auto arg = p.arg("a", stringType);
  argparser::parse_result pr;
  EXPECT_NO_THROW(pr = p.parse({"\"foo bar\""}));
  EXPECT_EQ(arg->get(pr), "foo bar");
  EXPECT_NO_THROW(pr = p.parse({"foo bar"}));
  EXPECT_EQ(arg->get(pr), "foo bar");
  EXPECT_THROW(pr = p.parse({"'foo bar'"}), argparser::errors::type_parsing_error);
}


TEST(Types, AutomaticStringTypeUnquotedInTuple) {
  argparser::parser p{};
  auto stringType = p.basic_type<std::string>("string");
  auto tupleType = p.tuple_type("tuple", stringType, stringType);
  auto arg = p.arg("a", tupleType);
  auto pr = p.parse({"(foo bar, asdf)"});
  auto val = arg->get(pr);
  EXPECT_EQ(val, std::make_tuple("foo bar", " asdf"));
}

TEST(Types, AutomaticStringTypeTrim) {
  argparser::parser p{};
  auto stringType = p.basic_type<std::string, argparser::internal::parse_opt::TrimString>("string");
  auto arg = p.arg("a", stringType);
  auto pr = p.parse({" foo "});
  EXPECT_EQ(arg->get(pr), "foo");
  pr = p.parse({"' foo '"});
  EXPECT_EQ(arg->get(pr), "foo");
  pr = p.parse({"\" foo \""});
  EXPECT_EQ(arg->get(pr), "foo");
}

TEST(Types, AutomaticStringTypeTrimOnlyWhitespace) {
  argparser::parser p{};
  auto stringType = p.basic_type<std::string, argparser::internal::parse_opt::TrimString>("string");
  auto arg = p.arg("a", stringType);
  auto pr = p.parse({"  "});
  EXPECT_EQ(arg->get(pr), "");
  pr = p.parse({"'  '"});
  EXPECT_EQ(arg->get(pr), "");
  pr = p.parse({"\"  \""});
  EXPECT_EQ(arg->get(pr), "");
}

TEST(Types, AutomaticStringTypeTrimUnquoted) {
  argparser::parser p{};
  auto stringType = p.basic_type<std::string, argparser::internal::parse_opt::TrimBareString>("string");
  auto arg = p.arg("a", stringType);
  auto pr = p.parse({" foo "});
  EXPECT_EQ(arg->get(pr), "foo");
  pr = p.parse({"' foo '"});
  EXPECT_EQ(arg->get(pr), " foo ");
  pr = p.parse({"\" foo \""});
  EXPECT_EQ(arg->get(pr), " foo ");
}


TEST(Types, EnumType) {
  argparser::parser p;
  auto boolType = p.enum_type<bool>("bool", {{"true", true},
                                             {"yes", true},
                                             {"false", false},
                                             {"no", false}});
  auto fooOption = p.option("--foo", boolType);
  auto parsed = p.parse({"--foo", "true"});
  EXPECT_EQ(fooOption->get(parsed), true);
  parsed = p.parse({"--foo", "false"});
  EXPECT_EQ(fooOption->get(parsed), false);
  parsed = p.parse({"--foo", "yes"});
  EXPECT_EQ(fooOption->get(parsed), true);
  parsed = p.parse({"--foo", "no"});
  EXPECT_EQ(fooOption->get(parsed), false);
}

TEST(Types, EnumTypeEmptyError) {
  argparser::parser p;
  EXPECT_THROW(p.enum_type("enum1", {}), argparser::errors::empty_enum_map_error);
  EXPECT_THROW(p.enum_type<bool>("enum1", {}), argparser::errors::empty_enum_map_error);
}

TEST(Types, EnumTypeLongestMatching) {
  argparser::parser p;
  auto enumType = p.enum_type<int>("enum", {
                                               {"a", 1},
                                               {"ab", 2},
                                           });
  auto fooOption = p.option("--foo", enumType);
  auto parsed = p.parse({"--foo", "a"});
  EXPECT_EQ(fooOption->get(parsed), 1);
  parsed = p.parse({"--foo", "ab"});
  EXPECT_EQ(fooOption->get(parsed), 2);
}

TEST(Types, EnumTypeLongestMatchingReverseOrder) {
  argparser::parser p;
  auto enumType = p.enum_type<int>("enum", {
                                               {"ab", 2},
                                               {"a", 1},
                                           });
  auto fooOption = p.option("--foo", enumType);
  auto parsed = p.parse({"--foo", "a"});
  EXPECT_EQ(fooOption->get(parsed), 1);
  parsed = p.parse({"--foo", "ab"});
  EXPECT_EQ(fooOption->get(parsed), 2);
}

TEST(Types, EnumTypeInvalidValue) {
  argparser::parser p;
  auto enumType = p.enum_type<int>("enum", {{"a", 1}, {"b", 2}, {"c", 3}});
  auto _1 = p.option("--foo", enumType);
  EXPECT_THROW(auto _ = p.parse({"--foo", "x"}), argparser::errors::type_parsing_error);
  EXPECT_THROW(auto _ = p.parse({"--foo", "aa"}), argparser::errors::type_parsing_error);
}

TEST(Types, StringEnumType) {
  argparser::parser p;
  auto enumType = p.enum_type("enum", {"foo", "bar"});
  auto fooOption = p.option("--foo", enumType);
  auto parsed = p.parse({"--foo", "foo"});
  EXPECT_EQ(fooOption->get(parsed), "foo");
  parsed = p.parse({"--foo", "bar"});
  EXPECT_EQ(fooOption->get(parsed), "bar");
}

TEST(Types, UnionType) {
  argparser::parser p;
  auto enumType1 = p.enum_type("enum", {"foo", "bar"});
  auto enumType2 = p.enum_type<bool>("bool", {{"true", true}, {"false", false}});
  auto unionType = p.union_type("enum-or-bool", enumType1, enumType2);
  auto fooOption = p.option("--foo", unionType);
  auto parsed = p.parse({"--foo", "bar"});
  auto val = fooOption->get(parsed);
  EXPECT_EQ(std::holds_alternative<std::string>(val), true);
  EXPECT_EQ(std::get<std::string>(val), "bar");
  parsed = p.parse({"--foo", "true"});
  val = fooOption->get(parsed);
  EXPECT_EQ(std::holds_alternative<bool>(val), true);
  EXPECT_EQ(std::get<bool>(val), true);
}

TEST(Types, UnionTypeWithSameUnderlyingBaseType) {
  argparser::parser p;
  auto enumType1 = p.enum_type("enum", {"foo", "bar"});
  auto enumType2 = p.enum_type("enum", {"hello", "world"});
  auto unionType = p.union_type("enum-or-bool", enumType1, enumType2);
  auto fooOption = p.option("--foo", unionType);
  auto parsed = p.parse({"--foo", "bar"});
  auto val = fooOption->get(parsed);
  EXPECT_EQ(val, "bar");
  parsed = p.parse({"--foo", "hello"});
  val = fooOption->get(parsed);
  EXPECT_EQ(val, "hello");
}

TEST(Types, UnionTypeError) {
  argparser::parser p;
  auto enumType1 = p.enum_type("enum", {"foo", "bar"});
  auto enumType2 = p.enum_type<bool>("bool", {{"true", true}, {"false", false}});
  auto unionType = p.union_type("union", enumType1, enumType2);
  auto fooOption = p.option("--foo", unionType);
  EXPECT_THROW(auto _ = p.parse({"--foo", "123"}), argparser::errors::type_parsing_error);
}

TEST(Types, UnionTypeErrorOnAmbiguity) {
  argparser::parser p;
  auto enumType1 = p.enum_type<int>("enum1", {{"foo", 1}, {"bar", 2}});
  auto enumType2 = p.enum_type<bool>("enum2", {{"bar", true}, {"hello-world", false}});
  auto unionType = p.union_type("union", enumType1, enumType2);
  auto fooOption = p.option("--foo", unionType);
  EXPECT_THROW(auto _1 = p.parse({"--foo", "bar"});, argparser::errors::ambiguous_parse_error);
  auto enumType3 = p.enum_type<int>("enum3", {{"bar", 1}, {"hello-world", 2}});
  auto unionType2 = p.union_type("union", enumType1, enumType3);
  auto barOption = p.option("--bar", unionType2);
  EXPECT_THROW(auto _1 = p.parse({"--bar", "bar"});, argparser::errors::ambiguous_parse_error);
}

TEST(Types, UnionTypeNoAmbiguityErrorIfPossibleValuesIdentical) {
  argparser::parser p;
  auto enumType1 = p.enum_type<int>("enum1", {{"foo", 1}, {"bar", 2}});
  auto enumType2 = p.enum_type<int>("enum2", {{"foo", 1}, {"foobar", 3}});
  auto unionType = p.union_type("union", enumType1, enumType2);
  auto fooOption = p.option("--foo", unionType);
  argparser::parse_result parsed;
  EXPECT_NO_THROW(parsed = p.parse({"--foo", "foo"}));
  ASSERT_EQ(fooOption->get(parsed), 1);
}

TEST(Types, ListType) {
  argparser::parser p;
  auto uintType = p.basic_type<uint32_t>("uint");
  auto listType = p.list_type("uint[]", uintType);
  auto fooOption = p.option("--foo", listType);
  auto parsed = p.parse({"--foo", "[1,2,3,4]"});
  auto val = fooOption->get(parsed);
  EXPECT_EQ(val.size(), 4);
  EXPECT_EQ(val[0], 1);
  EXPECT_EQ(val[1], 2);
  EXPECT_EQ(val[2], 3);
  EXPECT_EQ(val[3], 4);
}

TEST(Types, ListTypeWithoutBracketsAtRoot) {
  argparser::parser p;
  auto uintType = p.basic_type<uint32_t>("uint");
  auto listType = p.list_type("uint[]", uintType);
  auto fooOption = p.option("--foo", listType);
  auto parsed = p.parse({"--foo", "1,2,3,4"});
  auto val = fooOption->get(parsed);
  EXPECT_EQ(val.size(), 4);
  EXPECT_EQ(val[0], 1);
  EXPECT_EQ(val[1], 2);
  EXPECT_EQ(val[2], 3);
  EXPECT_EQ(val[3], 4);
}

TEST(Types, ListTypeTrailingComma) {
  argparser::parser p;
  auto uintType = p.basic_type<uint32_t>("uint");
  auto listType = p.list_type("uint[]", uintType);
  auto fooOption = p.option("--foo", listType);
  auto parsed = p.parse({"--foo", "[1,2,3,]"});
  auto val = fooOption->get(parsed);
  EXPECT_EQ(val.size(), 3);
  EXPECT_EQ(val[0], 1);
  EXPECT_EQ(val[1], 2);
  EXPECT_EQ(val[2], 3);
  parsed = p.parse({"--foo", "1,2,3,"});
  val = fooOption->get(parsed);
  EXPECT_EQ(val.size(), 3);
  EXPECT_EQ(val[0], 1);
  EXPECT_EQ(val[1], 2);
  EXPECT_EQ(val[2], 3);
}

TEST(Types, ListTypeOnlyOneTrailingComma) {
  argparser::parser p;
  auto uintType = p.basic_type<uint32_t>("uint");
  auto listType = p.list_type("uint[]", uintType);
  auto fooOption = p.option("--foo", listType);
  EXPECT_THROW(auto _1 = p.parse({"--foo", "[1,2,3,,]"});, argparser::errors::type_parsing_error);
  EXPECT_THROW(auto _2 = p.parse({"--foo", "1,2,3,,"});, argparser::errors::type_parsing_error);
}

TEST(Types, ListTypeNoPrecedingComma) {
  argparser::parser p;
  auto uintType = p.basic_type<uint32_t>("uint");
  auto listType = p.list_type("uint[]", uintType);
  auto fooOption = p.option("--foo", listType);
  EXPECT_THROW(auto _1 = p.parse({"--foo", "[,1,2,3]"});, argparser::errors::type_parsing_error);
  EXPECT_THROW(auto _2 = p.parse({"--foo", ",1,2,3"});, argparser::errors::type_parsing_error);
}

TEST(Types, ListTypeNoDoubleComma) {
  argparser::parser p;
  auto uintType = p.basic_type<uint32_t>("uint");
  auto listType = p.list_type("uint[]", uintType);
  auto fooOption = p.option("--foo", listType);
  EXPECT_THROW(auto _1 = p.parse({"--foo", "[1,,2,3]"});, argparser::errors::type_parsing_error);
  EXPECT_THROW(auto _2 = p.parse({"--foo", "[1, ,2,3]"});, argparser::errors::type_parsing_error);
}

TEST(Types, ListTypeInvalidBrackets) {
  argparser::parser p;
  auto uintType = p.basic_type<uint32_t>("uint");
  auto listType = p.list_type("uint[]", uintType);
  auto fooOption = p.option("--foo", listType);
  EXPECT_THROW(auto _1 = p.parse({"--foo", "[1,2,3"});, argparser::errors::type_parsing_error);
  EXPECT_THROW(auto _2 = p.parse({"--foo", "1,2,3]"});, argparser::errors::type_parsing_error);
  EXPECT_THROW(auto _2 = p.parse({"--foo", "1[,2,3"});, argparser::errors::type_parsing_error);
  EXPECT_THROW(auto _2 = p.parse({"--foo", "1,[2,3"});, argparser::errors::type_parsing_error);
  EXPECT_THROW(auto _2 = p.parse({"--foo", "1,2],3"});, argparser::errors::type_parsing_error);
  EXPECT_THROW(auto _2 = p.parse({"--foo", "1,2,]3"});, argparser::errors::type_parsing_error);
  EXPECT_THROW(auto _2 = p.parse({"--foo", "[1,2],3"});, argparser::errors::type_parsing_error);
  EXPECT_THROW(auto _2 = p.parse({"--foo", "[1,2,]3"});, argparser::errors::type_parsing_error);
}

TEST(Types, TupleType) {
  argparser::parser p;
  auto uintType = p.basic_type<uint32_t>("uint");
  auto boolType = p.enum_type<bool>("bool", {{"true", true}, {"false", false}});
  auto tupleType = p.tuple_type("tuple", uintType, uintType, boolType);
  auto fooOption = p.option("--foo", tupleType);
  auto parsed = p.parse({"--foo", "(1,2,true)"});
  auto val = fooOption->get(parsed);
  EXPECT_EQ(std::get<0>(val), 1);
  EXPECT_EQ(std::get<1>(val), 2);
  EXPECT_EQ(std::get<2>(val), true);
}
TEST(Types, TupleTypeWithoutParenthesesAtRoot) {
  argparser::parser p;
  auto uintType = p.basic_type<uint32_t>("uint");
  auto tupleType = p.tuple_type("tuple", uintType, uintType, uintType);
  auto fooOption = p.option("--foo", tupleType);
  auto parsed = p.parse({"--foo", "1,2,3"});
  auto val = fooOption->get(parsed);
  EXPECT_EQ(std::get<0>(val), 1);
  EXPECT_EQ(std::get<1>(val), 2);
  EXPECT_EQ(std::get<2>(val), 3);
}

TEST(Types, TupleTypeInvalidParentheses) {
  argparser::parser p;
  auto uintType = p.basic_type<uint32_t>("uint");
  auto tupleType = p.tuple_type("tuple", uintType, uintType, uintType);
  auto fooOption = p.option("--foo", tupleType);
  EXPECT_THROW(auto _1 = p.parse({"--foo", "(1,2,3"});, argparser::errors::type_parsing_error);
  EXPECT_THROW(auto _2 = p.parse({"--foo", "1,2,3)"});, argparser::errors::type_parsing_error);
  EXPECT_THROW(auto _2 = p.parse({"--foo", "1(,2,3"});, argparser::errors::type_parsing_error);
  EXPECT_THROW(auto _2 = p.parse({"--foo", "1,(2,3"});, argparser::errors::type_parsing_error);
  EXPECT_THROW(auto _2 = p.parse({"--foo", "1,2),3"});, argparser::errors::type_parsing_error);
  EXPECT_THROW(auto _2 = p.parse({"--foo", "1,2,)3"});, argparser::errors::type_parsing_error);
  EXPECT_THROW(auto _2 = p.parse({"--foo", "(1,2),3"});, argparser::errors::type_parsing_error);
  EXPECT_THROW(auto _2 = p.parse({"--foo", "(1,2,)3"});, argparser::errors::type_parsing_error);
}

TEST(Types, TupleTypeNoInvalidComma) {
  argparser::parser p;
  auto uintType = p.basic_type<uint32_t>("uint");
  auto tupleType = p.tuple_type("tuple", uintType, uintType, uintType);
  auto fooOption = p.option("--foo", tupleType);
  EXPECT_THROW(auto _2 = p.parse({"--foo", "(1,2,3,)"});, argparser::errors::type_parsing_error);
  EXPECT_THROW(auto _2 = p.parse({"--foo", "(,1,2,3)"});, argparser::errors::type_parsing_error);
  EXPECT_THROW(auto _2 = p.parse({"--foo", "(1,,2,3)"});, argparser::errors::type_parsing_error);
  EXPECT_THROW(auto _2 = p.parse({"--foo", "(1, ,2,3)"});, argparser::errors::type_parsing_error);
  EXPECT_THROW(auto _2 = p.parse({"--foo", "1,2,3,"});, argparser::errors::type_parsing_error);
}

struct SomeStruct {
  uint32_t foo;
  uint32_t bar;
  bool foobar;
};

TEST(Types, TupleTypeWithCustomType) {
  argparser::parser p;
  auto uintType = p.basic_type<uint32_t>("uint");
  auto boolType = p.enum_type<bool>("bool", {{"true", true}, {"false", false}});
  auto tupleType = p.tuple_type<SomeStruct>("tuple", uintType, uintType, boolType);
  auto fooOption = p.option("--foo", tupleType);
  auto parsed = p.parse({"--foo", "(1,2,true)"});
  auto val = fooOption->get(parsed);
  EXPECT_EQ(val.foo, 1);
  EXPECT_EQ(val.bar, 2);
  EXPECT_EQ(val.foobar, true);
}

TEST(Types, TupleWithCustomTypeAndCustomConstructor) {
  argparser::parser p;
  auto uintType = p.basic_type<uint32_t>("uint");
  auto boolType = p.enum_type<bool>("bool", {{"true", true}, {"false", false}});
  auto tupleType = p.tuple_type<SomeStruct>(
      "tuple",
      std::make_tuple(uintType, uintType, boolType),
      [](uint32_t a, uint32_t b, bool c) {
        return SomeStruct{a * 2, b * 3, !c};
      });
  auto fooOption = p.option("--foo", tupleType);
  auto parsed = p.parse({"--foo", "(1,2,true)"});
  auto val = fooOption->get(parsed);
  EXPECT_EQ(val.foo, 2);
  EXPECT_EQ(val.bar, 6);
  EXPECT_EQ(val.foobar, false);
}

TEST(Types, TupleWithSharedPointerAndConstructor) {
  argparser::parser p;
  auto uintType = p.basic_type<uint32_t>("uint");
  auto boolType = p.enum_type<bool>("bool", {{"true", true}, {"false", false}});
  auto tupleType = p.tuple_type<std::shared_ptr<SomeStruct>>(
      "tuple",
      std::make_tuple(uintType, uintType, boolType),
      [](uint32_t a, uint32_t b, bool c) {
        return std::make_shared<SomeStruct>(a, b, c);
      });
  auto fooOption = p.option("--foo", tupleType);
  auto parsed = p.parse({"--foo", "(1,2,true)"});
  auto val = fooOption->get(parsed);
  EXPECT_EQ(val->foo, 1);
  EXPECT_EQ(val->bar, 2);
  EXPECT_EQ(val->foobar, true);
}

class SomeVirtualClass {
public:
  virtual int foo() = 0;
};
class SomeClass : public SomeVirtualClass {
public:
  SomeClass(int a, int b) : a(a), b(b) {}
  int a{};
  int b{};
  int foo() override {
    return a + b;
  }
};

TEST(Types, TupleWithSharedPointerToVirtualClass) {
  argparser::parser p;
  auto uintType = p.basic_type<uint32_t>("uint");
  auto tupleType = p.tuple_type<std::shared_ptr<SomeVirtualClass>>(
      "tuple",
      std::make_tuple(uintType, uintType),
      [](uint32_t a, uint32_t b) {
        return std::make_shared<SomeClass>(a, b);
      });
  auto fooOption = p.option("--foo", tupleType);
  auto parsed = p.parse({"--foo", "(1,2)"});
  auto val = fooOption->get(parsed);
  EXPECT_EQ(val->foo(), 3);
}

TEST(Types, TuplesCanBeNamePrefixed) {
  argparser::parser p;
  auto uintType = p.basic_type<uint32_t>("uint");
  auto boolType = p.enum_type<bool>("bool", {{"true", true}, {"false", false}});
  auto tupleType = p.tuple_type("tuple", uintType, uintType, boolType);
  auto fooOption = p.option("--foo", tupleType);
  auto parsed = p.parse({"--foo", "tuple(1,2,true)"});
  auto val = fooOption->get(parsed);
  EXPECT_EQ(std::get<0>(val), 1);
  EXPECT_EQ(std::get<1>(val), 2);
  EXPECT_EQ(std::get<2>(val), true);
}

TEST(Types, TupleNamePrefixMustBeCorrect) {
  argparser::parser p;
  auto uintType = p.basic_type<uint32_t>("uint");
  auto boolType = p.enum_type<bool>("bool", {{"true", true}, {"false", false}});
  auto tupleType = p.tuple_type("tuple", uintType, uintType, boolType);
  auto fooOption = p.option("--foo", tupleType);
  EXPECT_THROW(auto _1 = p.parse({"--foo", "foobar(1,2,true)"});, argparser::errors::type_parsing_error);
}

TEST(Types, ComplexNestedTypes) {
  argparser::parser p;
  auto uintType = p.basic_type<uint32_t>("uint");
  auto tupleType = p.tuple_type("uint-tuple", uintType, uintType, uintType);
  auto enumType = p.enum_type("enum", {"foo", "bar", "hello", "world"});
  auto unionType = p.union_type("union", tupleType, enumType);
  auto listType = p.list_type("uint-tuple-list", unionType);
  auto fooOption = p.option("--foo", listType);
  auto parsed = p.parse({"--foo", "[foo,(1,2,3),hello,world,(2,3,4),(4,5,6)]"});
  auto val = fooOption->get(parsed);
  using tuplet = std::tuple<uint32_t, uint32_t, uint32_t>;
  EXPECT_EQ(val.size(), 6);
  EXPECT_TRUE(std::holds_alternative<std::string>(val[0]));
  EXPECT_EQ(std::get<std::string>(val[0]), "foo");
  EXPECT_TRUE(std::holds_alternative<tuplet>(val[1]));
  EXPECT_EQ(std::get<0>(std::get<tuplet>(val[1])), 1);
  EXPECT_EQ(std::get<1>(std::get<tuplet>(val[1])), 2);
  EXPECT_EQ(std::get<2>(std::get<tuplet>(val[1])), 3);
  EXPECT_TRUE(std::holds_alternative<std::string>(val[2]));
  EXPECT_EQ(std::get<std::string>(val[2]), "hello");
  EXPECT_TRUE(std::holds_alternative<std::string>(val[3]));
  EXPECT_EQ(std::get<std::string>(val[3]), "world");
  EXPECT_TRUE(std::holds_alternative<tuplet>(val[4]));
  EXPECT_EQ(std::get<0>(std::get<tuplet>(val[4])), 2);
  EXPECT_EQ(std::get<1>(std::get<tuplet>(val[4])), 3);
  EXPECT_EQ(std::get<2>(std::get<tuplet>(val[4])), 4);
  EXPECT_TRUE(std::holds_alternative<tuplet>(val[5]));
  EXPECT_EQ(std::get<0>(std::get<tuplet>(val[5])), 4);
  EXPECT_EQ(std::get<1>(std::get<tuplet>(val[5])), 5);
  EXPECT_EQ(std::get<2>(std::get<tuplet>(val[5])), 6);
}