#include "util/MockAssert.hpp"
#include "util/config/Array.hpp"
#include "util/config/ConfigConstraints.hpp"
#include "util/config/ConfigValue.hpp"
#include "util/config/Types.hpp"
#include "util/config/ValueView.hpp"

#include <gtest/gtest.h>

#include <algorithm>
#include <cstdint>
#include <vector>

using namespace util::config;

TEST(ArrayTest, prefix)
{
    EXPECT_EQ(Array::prefix("foo.[]"), "foo.[]");
    EXPECT_EQ(Array::prefix("foo.[].bar"), "foo.[]");
    EXPECT_EQ(Array::prefix("foo.bar.[].baz"), "foo.bar.[]");
}

struct ArrayAssertTest : common::util::WithMockAssert {};

TEST_F(ArrayAssertTest, prefix)
{
    EXPECT_CLIO_ASSERT_FAIL(Array::prefix("foo.bar"));
}

TEST(ArrayTest, addSingleValue)
{
    auto arr = Array{ConfigValue{ConfigType::Double}};
    ASSERT_FALSE(arr.addValue(111.11));
    EXPECT_EQ(arr.size(), 1);
}

TEST(ArrayTest, addAndCheckMultipleValues)
{
    auto arr = Array{ConfigValue{ConfigType::Double}};
    ASSERT_FALSE(arr.addValue(111.11));
    ASSERT_FALSE(arr.addValue(222.22));
    ASSERT_FALSE(arr.addValue(333.33));
    EXPECT_EQ(arr.size(), 3);

    auto const cv = arr.at(0);
    ValueView const vv{cv};
    EXPECT_EQ(vv.asDouble(), 111.11);

    auto const cv2 = arr.at(1);
    ValueView const vv2{cv2};
    EXPECT_EQ(vv2.asDouble(), 222.22);

    EXPECT_EQ(arr.size(), 3);
    ASSERT_FALSE(arr.addValue(444.44));

    EXPECT_EQ(arr.size(), 4);
    auto const cv4 = arr.at(3);
    ValueView const vv4{cv4};
    EXPECT_EQ(vv4.asDouble(), 444.44);
}

TEST(ArrayTest, testArrayPattern)
{
    auto const arr = Array{ConfigValue{ConfigType::String}};
    auto const arrPattern = arr.getArrayPattern();
    EXPECT_EQ(arrPattern.type(), ConfigType::String);
}

TEST(ArrayTest, iterateValueArray)
{
    auto arr = Array{ConfigValue{ConfigType::Integer}.withConstraint(gValidateUint16)};
    std::vector<int64_t> const expected{543, 123, 909};

    for (auto const num : expected)
        ASSERT_FALSE(arr.addValue(num));

    std::vector<int64_t> actual;
    for (auto it = arr.begin(); it != arr.end(); ++it)
        actual.emplace_back(std::get<int64_t>(it->getValue()));

    EXPECT_TRUE(std::ranges::equal(expected, actual));
}

TEST(ArrayTest, addNullOptional)
{
    Array arr{ConfigValue{ConfigType::Integer}.optional()};
    ASSERT_FALSE(arr.addNull());
    ASSERT_FALSE(arr.addValue(1));

    ASSERT_EQ(arr.size(), 2);
    EXPECT_FALSE(arr.at(0).hasValue());
    EXPECT_TRUE(arr.at(1).hasValue());
    EXPECT_EQ(std::get<int64_t>(arr.at(1).getValue()), 1);
}

TEST(ArrayTest, addNullDefault)
{
    Array arr{ConfigValue{ConfigType::Integer}.defaultValue(42)};
    ASSERT_FALSE(arr.addNull());
    ASSERT_FALSE(arr.addValue(1));

    ASSERT_EQ(arr.size(), 2);
    EXPECT_EQ(std::get<int64_t>(arr.at(0).getValue()), 42);
    EXPECT_EQ(std::get<int64_t>(arr.at(1).getValue()), 1);
}

TEST(ArrayTest, addNullRequired)
{
    Array arr{ConfigValue{ConfigType::Integer}};
    auto const error = arr.addNull();
    EXPECT_TRUE(error.has_value());
}