//Copyright (c) 2020 Ultimaker B.V.
//libSavitar is released under the terms of the AGPLv3 or higher.

#include "../src/Namespace.h"

#include <fstream>
#include <gtest/gtest.h>
#include <iostream>
#include <string>
#include "../pugixml/src/pugixml.hpp"

namespace xml_namespace
{
    class NamespaceTest : public testing::Test
    {
    public:
        pugi::xml_document document;
        pugi::xml_node main_xml_node;

        void SetUp()
        {
            std::ifstream test_model_file("../tests/namespaces.xml");
            if (test_model_file.is_open())
            {
                const std::string xml_string(std::istreambuf_iterator<char>{test_model_file}, {});

                pugi::xml_parse_result result = document.load_string(xml_string.c_str());
                main_xml_node = document.child("main");
            }
        }
    };

    TEST_F(NamespaceTest, getAncestralNamespaces)
    {
        ASSERT_TRUE(main_xml_node);

        pugi::xml_node node;
        xml_namespace::xmlns_map_t result;

        node = main_xml_node.child("simple");
        result = xml_namespace::getAncestralNamespaces(node);
        ASSERT_EQ(result.size(), 2); // <-- including default namespace
        ASSERT_EQ(result["_a_"].size(), 1);
        ASSERT_EQ(result["_a_"].count("a"), 1);

        node = main_xml_node.child("multiple");
        result = xml_namespace::getAncestralNamespaces(node);
        ASSERT_EQ(result["_a_"].count("a"), 1);
        ASSERT_EQ(result["_b_"].count("b"), 1);
        ASSERT_EQ(result["_c_"].count("c"), 1);

        node = main_xml_node.child("overwrite"); // _before_ overwrite
        result = xml_namespace::getAncestralNamespaces(node);
        ASSERT_EQ(result.size(), 2);
        ASSERT_EQ(result["_b_"].size(), 1);
        ASSERT_EQ(result["_b_"].count("b"), 1);

        node = main_xml_node.child("overwrite").child("sub"); // _after_ overwrite
        result = xml_namespace::getAncestralNamespaces(node);
        ASSERT_EQ(result.size(), 2);
        ASSERT_EQ(result.count("_b_"), 0);
        ASSERT_EQ(result["_c_"].size(), 1);
        ASSERT_EQ(result["_c_"].count("b"), 1);

        node = main_xml_node.child("combine").child("sub");
        result = xml_namespace::getAncestralNamespaces(node);
        ASSERT_EQ(result.size(), 2);
        ASSERT_EQ(result["_s_"].size(), 2);
        ASSERT_EQ(result["_s_"].count("s"), 1);
        ASSERT_EQ(result["_s_"].count("n"), 1);

        node = main_xml_node.child("deep").child("sub");
        result = xml_namespace::getAncestralNamespaces(node);
        ASSERT_EQ(result.size(), 3);
        ASSERT_EQ(result.count("_w_"), 0);
        ASSERT_EQ(result.count("_x_"), 1);

        node = main_xml_node.child("deep").child("sub").child("subber").child("subbest");
        result = xml_namespace::getAncestralNamespaces(node);
        ASSERT_EQ(result.size(), 6);
        ASSERT_EQ(result.count("_w_"), 1);
        ASSERT_EQ(result.count("_x_"), 1);

        node = main_xml_node.child("multideep").child("sub").child("subber").child("subbest");
        result = xml_namespace::getAncestralNamespaces(node);
        ASSERT_EQ(result.size(), 6);
        ASSERT_EQ(result.count("_w_"), 1);
        ASSERT_EQ(result.count("_x_"), 1);

        node = main_xml_node.child("multideep").child("subber").child("subbest");
        result = xml_namespace::getAncestralNamespaces(node);
        ASSERT_EQ(result.size(), 5);
        ASSERT_EQ(result.count("_w_"), 0);
        ASSERT_EQ(result.count("_e_"), 1);
        ASSERT_EQ(result.count("_q_"), 1);
        ASSERT_EQ(result.count("_r_"), 1);

        node = main_xml_node.child("multideep").child("subbest");
        result = xml_namespace::getAncestralNamespaces(node);
        ASSERT_EQ(result.size(), 3);
        ASSERT_EQ(result.count("_e_"), 0);
        ASSERT_EQ(result.count("_q_"), 1);
    }

    // std::set<std::string> getNamesFor(const xmlns_map_t& map, const std::string& uri);
    TEST_F(NamespaceTest, getNamesFor)
    {
        ASSERT_TRUE(main_xml_node);
        pugi::xml_node node = main_xml_node.child("multideep").child("sub").child("subber").child("subbest");
        xml_namespace::xmlns_map_t map = xml_namespace::getAncestralNamespaces(node);
        ASSERT_EQ(xml_namespace::getNamesFor(map, "_w_").count("w"), 1);
        ASSERT_EQ(xml_namespace::getNamesFor(map, "_p_").size(), 0);
    }

} // namespace xml_namespace