/*
  Copyright 2011-2021 David Robillard <d@drobilla.net>

  Permission to use, copy, modify, and/or distribute this software for any
  purpose with or without fee is hereby granted, provided that the above
  copyright notice and this permission notice appear in all copies.

  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/

#undef NDEBUG

#include "serd/serd.h"

#include <assert.h>
#include <stddef.h>

static void
test_copy(void)
{
  assert(!serd_cursor_copy(NULL));

  SerdWorld* const  world = serd_world_new();
  SerdModel* const  model = serd_model_new(world, SERD_ORDER_SPO, 0u);
  SerdCursor* const begin = serd_model_begin(model);
  SerdCursor* const copy  = serd_cursor_copy(begin);

  assert(serd_cursor_equals(copy, begin));

  serd_cursor_free(copy);
  serd_cursor_free(begin);
  serd_model_free(model);
  serd_world_free(world);
}

static void
test_comparison(void)
{
  SerdWorld* const world = serd_world_new();
  SerdNodes* const nodes = serd_world_nodes(world);
  SerdModel* const model = serd_model_new(world, SERD_ORDER_SPO, 0u);

  serd_model_add_index(model, SERD_ORDER_OPS);

  const SerdNode* const a =
    serd_nodes_uri(nodes, SERD_STRING("http://example.org/a"));
  const SerdNode* const b =
    serd_nodes_uri(nodes, SERD_STRING("http://example.org/b"));
  const SerdNode* const c =
    serd_nodes_uri(nodes, SERD_STRING("http://example.org/c"));

  // Add a single statement
  assert(!serd_model_add(model, a, b, c, NULL));

  // Make cursors that point to the statement but via different patterns
  SerdCursor* const c1 = serd_model_find(model, a, NULL, NULL, NULL);
  SerdCursor* const c2 = serd_model_find(model, a, b, NULL, NULL);
  SerdCursor* const c3 = serd_model_find(model, NULL, b, c, NULL);

  // Ensure that they refer to the same statement but are not equal
  assert(serd_cursor_get(c1) == serd_cursor_get(c2));
  assert(serd_cursor_get(c2) == serd_cursor_get(c3));
  assert(!serd_cursor_equals(c1, c2));
  assert(!serd_cursor_equals(c2, c3));
  assert(!serd_cursor_equals(c1, c3));

  // Check that none are equal to begin (which has a different mode) or end
  SerdCursor* const begin = serd_model_begin(model);
  assert(!serd_cursor_equals(c1, begin));
  assert(!serd_cursor_equals(c2, begin));
  assert(!serd_cursor_equals(c3, begin));
  assert(!serd_cursor_equals(c1, serd_model_end(model)));
  assert(!serd_cursor_equals(c2, serd_model_end(model)));
  assert(!serd_cursor_equals(c3, serd_model_end(model)));
  serd_cursor_free(begin);

  // Check that a cursor that points to it via the same pattern is equal
  SerdCursor* const c4 = serd_model_find(model, a, b, NULL, NULL);
  assert(serd_cursor_get(c4) == serd_cursor_get(c1));
  assert(serd_cursor_equals(c4, c2));
  assert(!serd_cursor_equals(c4, c3));
  serd_cursor_free(c4);

  // Advance everything to the end
  assert(serd_cursor_advance(c1) == SERD_FAILURE);
  assert(serd_cursor_advance(c2) == SERD_FAILURE);
  assert(serd_cursor_advance(c3) == SERD_FAILURE);

  // Check that they are now equal, and equal to the model's end
  assert(serd_cursor_equals(c1, c2));
  assert(serd_cursor_equals(c1, serd_model_end(model)));
  assert(serd_cursor_equals(c2, serd_model_end(model)));

  serd_cursor_free(c3);
  serd_cursor_free(c2);
  serd_cursor_free(c1);
  serd_model_free(model);
  serd_world_free(world);
}

int
main(void)
{
  test_copy();
  test_comparison();

  return 0;
}