#include <di/Translation.h>
#include <iostream>
#include <fstream>
#include <gtest/gtest.h>

using namespace Di;
using namespace std;

TEST(Translation, isDefaultLangage) {
	Translation t(".");
	EXPECT_TRUE(t.isDefaultLanguage("default"));
}

TEST(Translation, setDefaultLanguage) {
	Translation t(".");
	t.setDefaultLanguage("nl");
	EXPECT_TRUE(t.isDefaultLanguage("nl"));
}

TEST(Translation, loadInvalidFile) {
	Translation t(".");
	ofstream testFile;
	testFile.open("default.json", ofstream::out);
	testFile << "invalid" << endl;
	testFile.close();

	EXPECT_EQ("", t.getDefaultTranslation("save"));

	unlink("default.json");
}

TEST(Translation, getDefaultTranslation) {
	Translation t(".");
	ofstream testFile;
	testFile.open("default.json", ofstream::out);
	testFile << "{\"save\": \"opslaan\", \"cancel\":\"annuleren\"}" << endl;
	testFile.close();

	EXPECT_EQ("opslaan", t.getDefaultTranslation("save"));
	EXPECT_EQ("annuleren", t.getDefaultTranslation("cancel"));

	unlink("default.json");
}

TEST(Translation, reloadLanguage) {
	Translation t(".");
	ofstream testFile;
	testFile.open("nl.json", ofstream::out);
	testFile << "{\"save\": \"opslaan\", \"cancel\":\"annuleren\"}" << endl;
	testFile.close();

	EXPECT_EQ("opslaan", t.getTranslation("save", "nl"));
	EXPECT_EQ("annuleren", t.getTranslation("cancel", "nl"));

	testFile.open("nl.json", ofstream::out);
	testFile << "{\"save\": \"save\", \"cancel\":\"cancel\"}" << endl;
	testFile.close();

	t.reloadLanguage("nl");

	EXPECT_EQ("save", t.getTranslation("save", "nl"));
	EXPECT_EQ("cancel", t.getTranslation("cancel", "nl"));

	unlink("nl.json");
}


TEST(Translation, getDefaultTranslationButNotFound) {
	Translation t(".");
	ofstream testFile;
	testFile.open("default.json", ofstream::out);
	testFile << "{\"save\": \"opslaan\", \"cancel\":\"annuleren\"}" << endl;
	testFile.close();

	EXPECT_EQ("", t.getDefaultTranslation("next"));

	unlink("default.json");
}

TEST(Translation, getTranslationButFallbackOnDefaultLanguage) {
	Translation t(".");
	ofstream testFile;
	testFile.open("default.json", ofstream::out);
	testFile << "{\"save\": \"opslaan\", \"cancel\":\"annuleren\"}" << endl;
	testFile.close();

	ofstream testFile2;
	testFile2.open("en.json", ofstream::out);
	testFile2 << "{\"save\": \"save\"}" << endl;
	testFile2.close();

	ofstream testFile3;
	testFile3.open("de.json", ofstream::out);
	testFile3 << "{}" << endl;
	testFile3.close();

	EXPECT_EQ("save", t.getTranslation("save", "en"));
	EXPECT_EQ("annuleren", t.getTranslation("cancel", "en"));
	EXPECT_EQ("opslaan", t.getTranslation("save", "de"));
	EXPECT_EQ("opslaan", t.getTranslation("save", "fr"));

	unlink("default.json");
	unlink("en.json");
	unlink("de.json");
}

TEST(Translation, getTranslationFallbackOnDefaultLanguageButNotFound) {
	Translation t(".");
	ofstream testFile;
	testFile.open("en.json", ofstream::out);
	testFile << "{\"save\": \"save\"}" << endl;
	testFile.close();


	EXPECT_EQ("save", t.getTranslation("save", "en"));
	EXPECT_EQ("", t.getTranslation("cancel", "en"));

	unlink("en.json");
}

TEST(Translation, formattedTranslation) {
	Translation t(".");
	ofstream testFile;
	testFile.open("en.json", ofstream::out);
	testFile << "{\"message\": \"A %1$s jumped from a %2$d meter high fence.\"}" << endl;
	testFile.close();


	EXPECT_EQ("A cat jumped from a 10 meter high fence.", t.getTranslation("message", "en", "cat", 10));
	EXPECT_EQ("A horse jumped from a 3 meter high fence.", t.getTranslation("message", "en", "horse", 3));

	unlink("en.json");
}