#include "bnf.h"
#include "cpp.h"
#include "cppbnf.h"
#include "lexer.h"
#include "grammer.h"
#include "minicc.h"
#include "debug.h"

#include <boost/algorithm/string.hpp>

#include "gmock/gmock.h"
#include "gtest/gtest.h"

#include <algorithm>
#include <cctype>
#include <deque>
#include <map>
#include <memory>
#include <string>
#include <utility>
#include <vector>

class CppTest: public ::testing::Test
{
protected:
 CppTest() {
  //debug = true;
 }
 ~CppTest() {
 }
};

TEST_F(CppTest, preprocessing_tokenize) {
 CPP cpp;
 auto pp_tokens = cpp.preprocessing_tokenize("int main() { return 1; }");

 ASSERT_EQ(pp_tokens.size(), 9);

 auto tokens = cpp.tokens_from_pptokens(pp_tokens);

 ASSERT_EQ(tokens.size(), 9);

 auto nodes = cpp.analysis(tokens);
 
 ASSERT_EQ(nodes.size(), 43);
}

TEST_F(CppTest, preprocessing_tokenize_empty) {
 CPP cpp;
 auto pp_tokens = cpp.preprocessing_tokenize("");

 ASSERT_EQ(pp_tokens.size(), 0);

 auto tokens = cpp.tokens_from_pptokens(pp_tokens);

 ASSERT_EQ(tokens.size(), 0);

 auto nodes = cpp.analysis(tokens);
 
 ASSERT_EQ(nodes.size(), 1);

 ASSERT_EQ(nodes[0].type, "translation-unit");
}

TEST_F(CppTest, preprocessing_tokenize_compile_error) {
 CPP cpp;
 auto ppTree = cpp.preprocessing_tokenize("in ma");

 auto tokens = cpp.tokens_from_pptokens(ppTree);
 
 ASSERT_EQ(tokens.size(), 2);

 try {
  auto nodes = cpp.analysis(tokens);
 } catch (const std::exception& ex) {
  EXPECT_EQ(ex.what(), "Compile error"s);
  return;
 }

 FAIL() << "Exception expected";
}

TEST_F(CppTest, compile_1) {
 CPP cpp;
 
 cpp.compile("int main() { return 1; }");
}

TEST_F(CppTest, compile_add) {
 CPP cpp;
 
 cpp.compile("int main() { return 1 + 2; }");
}

TEST_F(CppTest, compile_123) {
 CPP cpp;
 
 cpp.compile("int main() { return 1 + 2 + 3; }");
}

TEST_F(CppTest, compile_parentheses_left) {
 CPP cpp;
 
 cpp.compile("int main() { return (3 + 1) + 2; }");
}

TEST_F(CppTest, compile_parentheses_right) {
 CPP cpp;
 
 cpp.compile("int main() { return 3 + (1 + 2); }");
}

TEST_F(CppTest, compile_add_mul) {
 CPP cpp;
 
 cpp.compile("int main() { return 1 + (2 * 2); }");
}

TEST_F(CppTest, compile_2_times) {
 CPP cpp;
 
 cpp.compile("int main() { return (1 + 2) * 2; }");
 cpp.compile("int main() { return 1 + 2 * 2; }");
}