#include <gmock/gmock.h>
#include <gtest/gtest.h>

#include <jvalidate/detail/pointer.h>
#include <jvalidate/detail/relative_pointer.h>
#include <jvalidate/validation_result.h>

#include <json/reader.h>
#include <json/value.h>

inline auto operator""_jptr(char const * data, size_t len) {
  return jvalidate::detail::Pointer::parse(std::string_view{data, len}).value();
}

inline auto operator""_relptr(char const * data, size_t len) {
  return jvalidate::detail::RelativePointer::parse(std::string_view{data, len}).value();
}

inline Json::Value operator""_json(char const * data, size_t len) {
  Json::Value value;

  Json::CharReaderBuilder builder;
  std::unique_ptr<Json::CharReader> reader(builder.newCharReader());

  std::string error;
  // NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic)
  if (not reader->parse(data, data + len, &value, &error)) {
    throw std::runtime_error(error);
  }

  return value;
}

MATCHER_P(Expected, m, "") {
  if (arg.has_value()) {
    return testing::ExplainMatchResult(m, arg.value(), result_listener);
  }
  return false;
}

MATCHER_P(Unexpected, m, "") {
  if (not arg.has_value()) {
    return testing::ExplainMatchResult(m, arg.error(), result_listener);
  }
  return false;
}

MATCHER(Valid, "") { return arg.valid(); }

MATCHER_P(HasAnnotationsFor, doc_path, "") { return arg.has(doc_path); }

MATCHER_P2(HasAnnotationAt, doc_path, schema_path, "") { return arg.has(doc_path, schema_path); }

MATCHER_P4(AnnotationAt, doc_path, schema_path, key, matcher, "") {
  auto const * anno = arg.annotation(doc_path, schema_path, key);
  *result_listener << "\ninstanceLocation: " << doc_path << " is "
                   << (arg.has(doc_path) ? "present" : "missing");
  *result_listener << "\nevaluationLocation: " << schema_path << " is "
                   << (arg.has(doc_path, schema_path) ? "present" : "missing");
  if (not anno) {
    *result_listener << "\nannotation: (nil)";
    return false;
  }
  *result_listener << "\nannotation: " << testing::PrintToString(*anno);
  return testing::ExplainMatchResult(matcher, *anno, result_listener);
}

template <typename M> auto AnnotationAt(std::string const & key, M && matcher) {
  return AnnotationAt(jvalidate::detail::Pointer(), jvalidate::detail::Pointer(), key,
                      std::forward<M>(matcher));
}

MATCHER_P4(ErrorAt, doc_path, schema_path, key, matcher, "") {
  auto const * anno = arg.error(doc_path, schema_path, key);
  *result_listener << "\ninstanceLocation: " << doc_path << " is "
                   << (arg.has(doc_path) ? "present" : "missing");
  *result_listener << "\nevaluationLocation: " << schema_path << " is "
                   << (arg.has(doc_path, schema_path) ? "present" : "missing");
  if (not anno) {
    *result_listener << "\nannotation: (nil)";
    return false;
  }
  *result_listener << "\nannotation: " << testing::PrintToString(*anno);
  return testing::ExplainMatchResult(matcher, *anno, result_listener);
}

template <typename M> auto ErrorAt(std::string const & key, M && matcher) {
  return ErrorAt(jvalidate::detail::Pointer(), jvalidate::detail::Pointer(), key,
                 std::forward<M>(matcher));
}