#include "catch2/catch_test_macros.hpp"

#include "SessionFixture.hpp"

#include "models/airplane.hpp"
#include "models/author.hpp"
#include "models/book.hpp"
#include "models/flight.hpp"

#include <iostream>

using namespace matador;
using namespace matador::object;
using namespace matador::test;

TEST_CASE_METHOD(SessionFixture, "Session relation test", "[session][relation]") {
  const auto result = ses.attach<airplane>("airplanes")
    .and_then([this] { return ses.attach<flight>("flights"); } )
    .and_then([this] { return ses.create_schema(); } );
  REQUIRE(result.is_ok());

  tables_to_drop.emplace("airplanes");
  tables_to_drop.emplace("flights");

  auto plane = ses.insert<airplane>(1, "Boeing", "A380");
  REQUIRE(plane.is_ok());
  auto f = ses.insert<flight>(2, *plane, "sully");
  REQUIRE(f.is_ok());

  const auto res = ses.find<flight>(2);
  REQUIRE(res.is_ok());
  auto rf = *res;
  REQUIRE(rf->id == (*f)->id);
  REQUIRE(rf->pilot_name == (*f)->pilot_name);
  REQUIRE(rf->plane);
  REQUIRE(rf->plane->id == (*plane)->id);
  REQUIRE(rf->plane->brand == (*plane)->brand);
  REQUIRE(rf->plane->model == (*plane)->model);
}

TEST_CASE_METHOD(SessionFixture, "Use session to find object with id", "[session][find]") {
  const auto result = ses.attach<airplane>("airplanes")
    .and_then([this] { return ses.create_schema(); } );
  REQUIRE(result.is_ok());

  tables_to_drop.emplace("airplanes");

  auto a380 = ses.insert<airplane>(1, "Boeing", "A380");
  REQUIRE(a380.is_ok());

  auto res = ses.find<airplane>(2);
  REQUIRE(!result.is_ok());
  REQUIRE((result.err().ec() == orm::error_code::FailedToFindObject));

  auto find_result = ses.find<airplane>(1);

  REQUIRE(find_result);
  auto read_a380 = find_result.value();
  REQUIRE((*a380)->id == read_a380->id);
}

TEST_CASE_METHOD(SessionFixture, "Use session to find all objects", "[session][find]") {
  const auto result = ses.attach<airplane>("airplanes")
    .and_then([this] { return ses.create_schema(); } );
  REQUIRE(result.is_ok());

  tables_to_drop.emplace("airplanes");

  std::vector<std::unique_ptr<airplane>> planes;
  planes.emplace_back(new airplane(1, "Airbus", "A380"));
  planes.emplace_back(new airplane(2, "Boeing", "707"));
  planes.emplace_back(new airplane(3, "Boeing", "747"));

  for (auto &&plane: planes) {
    auto res = ses.insert(plane.release());
    REQUIRE(res.is_ok());
  }

  auto find_result = ses.find<airplane>();

  std::vector<std::tuple<unsigned long, std::string, std::string>> expected_result {
    {1, "Airbus", "A380"},
    {2, "Boeing", "707"},
    {3, "Boeing", "747"}
  };
  REQUIRE(find_result);
  auto all_planes = find_result.release();
  size_t index {0};
  for (const auto &i: all_planes) {
    REQUIRE(i.id == std::get<0>(expected_result[index]));
    REQUIRE(i.brand == std::get<1>(expected_result[index]));
    REQUIRE(i.model == std::get<2>(expected_result[index]));
    ++index;
  }
}

TEST_CASE_METHOD(SessionFixture, "Use session to find all objects with one-to-many relation", "[session][find][one-to-many]") {
  auto result = ses.attach<author>("authors")
    .and_then( [this] { return ses.attach<book>("books"); } )
    .and_then( [this] { return ses.create_schema(); } );

  tables_to_drop.emplace("authors");
  tables_to_drop.emplace("books");

  std::vector<std::unique_ptr<author>> authors;
  authors.emplace_back(new author{1, "Michael", "Crichton", "23.10.1942", 1975, true, {}});
  authors.emplace_back(new author{ 2, "Steven", "King", "21.9.1947", 1956, false, {}});

  for (auto &&a: authors) {
      auto res = ses.insert(a.release());
      REQUIRE(res.is_ok());
  }

  auto find_result = ses.find<author>();
  REQUIRE(find_result.is_ok());
  auto all_authors = find_result.release();
  std::vector<object_ptr<author>> author_repo;
  for (auto it = all_authors.begin(); it != all_authors.end(); ++it) {
      std::cout << "author: " << it->first_name << " (books: " << it->books.size() << ")\n";
      author_repo.emplace_back(it.release());
  }
  REQUIRE(author_repo.size() == 2);

  std::vector<std::unique_ptr<book>> books;
  books.emplace_back( new book{3, "Jurassic Park", author_repo[0], 1990} );
  books.emplace_back( new book{4, "Timeline", author_repo[0], 1999} );
  books.emplace_back( new book{5, "The Andromeda Strain", author_repo[0], 1969} );
  books.emplace_back( new book{6, "Congo", author_repo[0], 1980} );
  books.emplace_back( new book{7, "Prey", author_repo[0], 2002} );
  books.emplace_back( new book{8, "Carrie", author_repo[1], 1974} );
  books.emplace_back( new book{9, "The Shining", author_repo[1], 1977} );
  books.emplace_back( new book{10, "It", author_repo[1], 1986} );
  books.emplace_back( new book{11, "Misery", author_repo[1], 1987} );
  books.emplace_back( new book{12, "The Dark Tower: The Gunslinger", author_repo[1], 1982} );

  for (auto &&b: books) {
    auto res = ses.insert(b.release());
    REQUIRE(res.is_ok());
  }

  find_result = ses.find<author>();
  REQUIRE(find_result);

  all_authors = find_result.release();
  for (auto it = all_authors.begin(); it != all_authors.end(); ++it) {
      std::cout << "author: " << it->first_name << " (books: " << it->books.size() << ")\n";
  }
}