// Copyright (C) 2020-2021 Primate Labs Inc.
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#include "litehtml/url_path.h"

#include <gtest/gtest.h>

#include <iostream>
#include <utility>
#include <vector>

using namespace litehtml;

namespace {

struct url_path_testcase {
  tstring base;
  tstring path;
  tstring expected;
};

}  // namespace

TEST(URLPathTest, Absolute) {
  std::vector<std::pair<tstring, bool>> testcases = {
      {_t(""), false}, {_t("a"), false}, {_t("a/"), false}, {_t("a/b"), false}, {_t("a/b/"), false}, {_t("a/b/c"), false}, {_t("a/b/c/"), false},

      {_t("/"), true}, {_t("/a"), true}, {_t("/a/"), true}, {_t("/a/b"), true}, {_t("/a/b/"), true}, {_t("/a/b/c"), true}, {_t("/a/b/c/"), true},
  };

  for (auto& testcase : testcases) {
    EXPECT_EQ(testcase.second, is_url_path_absolute(testcase.first));
  }
}

TEST(URLPathTest, DirectoryName) {
  std::vector<std::pair<tstring, tstring>> testcases = {
      {_t(""), _t(".")},  {_t("a"), _t(".")},  {_t("a/"), _t("a/")},   {_t("a/b"), _t("a/")},   {_t("a/b/"), _t("a/b/")},   {_t("a/b/c"), _t("a/b/")},   {_t("a/b/c/"), _t("a/b/c/")},

      {_t("/"), _t("/")}, {_t("/a"), _t("/")}, {_t("/a/"), _t("/a/")}, {_t("/a/b"), _t("/a/")}, {_t("/a/b/"), _t("/a/b/")}, {_t("/a/b/c"), _t("/a/b/")}, {_t("/a/b/c/"), _t("/a/b/c/")},
  };

  for (auto& testcase : testcases) {
    EXPECT_EQ(testcase.second, url_path_directory_name(testcase.first));
  }
}

TEST(URLPathTest, BaseName) {
  std::vector<std::pair<tstring, tstring>> testcases = {
      {_t(""), _t("")},  {_t("a"), _t("a")},  {_t("a/"), _t("")},  {_t("a/b"), _t("b")},  {_t("a/b/"), _t("")},  {_t("a/b/c"), _t("c")},  {_t("a/b/c/"), _t("")},

      {_t("/"), _t("")}, {_t("/a"), _t("a")}, {_t("/a/"), _t("")}, {_t("/a/b"), _t("b")}, {_t("/a/b/"), _t("")}, {_t("/a/b/c"), _t("c")}, {_t("/a/b/c/"), _t("")},
  };

  for (auto& testcase : testcases) {
    EXPECT_EQ(testcase.second, url_path_base_name(testcase.first));
  }
}

TEST(URLPathTest, Append) {
  std::vector<url_path_testcase> testcases = {
      {_t(""), _t("a"), _t("a")},
      {_t("/"), _t("a"), _t("/a")},
      {_t("/a"), _t(""), _t("/a")},
      {_t("/a"), _t("b"), _t("/a/b")},
  };

  for (auto& testcase : testcases) {
    EXPECT_EQ(testcase.expected, url_path_append(testcase.base, testcase.path));
  }
}

TEST(URLPathTest, Resolve) {
  std::vector<url_path_testcase> testcases = {
      {_t("/"), _t("a"), _t("/a")},
      {_t("/a"), _t("b"), _t("/b")},
      {_t("/a"), _t("/b"), _t("/b")},
  };

  for (auto& testcase : testcases) {
    EXPECT_EQ(testcase.expected, url_path_resolve(testcase.base, testcase.path));
  }
}