#include "matador/object/schema.hpp"

#include "matador/logger/log_manager.hpp"

#include "author.hpp"
#include "book.hpp"

#include <iostream>

/*
 *  node author
 *
 *  relation_endpoints
 *      1. - field_name "books"
 *         - type "has_many"
 *         - node <author>
 *         - foreign endpoint (1) "author"
 *
 *  node book
 *      2. - field_name "author_id"
 *         - type "belongs_to"
 *         - node <book>
 *         - foreign endpoint (2) "books"
 *
 *  Attach process:
 *
 *  attach<author>
 *  - relation completer detects "has_many<book>"
 *  - has_many<book> doesn't find <book> (not yet attached)
 *  - create endpoint (1) without foreign endpoint
 *  - create node many_to_many_relation<author, book>("author_id", "id")
 *  - 3. create endpoint
 *      - field name "author_id"
 *      - type "belongs_to"
 *      - node <many_to_many_relation<author, book>>
 *      - foreign endpoint (1) "author
 *  - set foreign endpoint of (1) to endpoint (3)
 *  - register endpoint in authors node by type book
 *  - attach (internal) node<many_to_many_relation<author, book>>
 *
 *  attach<book>
 *  - relation completer detects "belongs_to<author>"
 *  - belongs_to<author> finds <book>
 *  - try to find relation endpoint of type book in authors node
 *  - if endpoint was found
 *    - validate node in endpoint
 *    - if node is of type many_to_many_relation
 *      - detach node of endpoint
 *      - update node in endpoint to <book>
 *  - else
 *    - create endpoint <book> (1)
 *    - create endpoint <author> (2)
 *    - set foreign endpoint of (1) to endpoint (2)
 *    - set foreign endpoint of (2) to endpoint (1)
 *  - check relation endpoints...
 */
using namespace demo;
using namespace matador;

int main() {
  logger::default_min_log_level(logger::log_level::LVL_DEBUG);
  logger::add_log_sink(logger::create_stdout_sink());

  {
    object::schema schema;

    auto result = schema.attach<author>("authors")
        .and_then([&schema] { return schema.attach<book>("books"); });

    schema.dump(std::cout);
  }
  {
    object::schema schema;

    auto result = schema.attach<book>("books")
        .and_then([&schema] { return schema.attach<author>("authors"); });

    schema.dump(std::cout);
  }
}