#include "utils.hpp"
#include <iostream>
#include <string>
#include <fstream>
#include <vector>
#include <algorithm>
#include <filesystem>
namespace dropshell {

void maketitle(const std::string& title) {
    std::cout << std::string(title.length() + 4, '-') << std::endl;
    std::cout << "| " << title << " |" << std::endl;
    std::cout << std::string(title.length() + 4, '-') << std::endl;
}

bool replace_line_in_file(const std::string& file_path, const std::string& search_string, const std::string& replacement_line) {
    std::ifstream input_file(file_path);
    std::vector<std::string> file_lines;
    std::string line;

    if (!input_file.is_open()) {
        std::cerr << "Error: Unable to open file: " << file_path << std::endl;
        return false;
    }

    while (std::getline(input_file, line)) {
        if (line.find(search_string) != std::string::npos)
            file_lines.push_back(replacement_line);
            else
                file_lines.push_back(line);
        }
    input_file.close();
        
    std::ofstream output_file(file_path);
    if (!output_file.is_open())
    {
        std::cerr << "Error: Unable to open file: " << file_path << std::endl;
        return false;
    }
    for (const auto& modified_line : file_lines)
        output_file << modified_line << "\n";
    output_file.close();
    return true;
}

std::string trim(std::string str) {
    // Trim leading whitespace
    str.erase(str.begin(), std::find_if(str.begin(), str.end(), [](unsigned char ch) {
        return !std::isspace(ch);
    }));

    // Trim trailing whitespace
    str.erase(std::find_if(str.rbegin(), str.rend(), [](unsigned char ch) {
        return !std::isspace(ch);
    }).base(), str.end());

    return str;
}

std::string dequote(std::string str)
{
    if (str.length() < 2)
        return str;
    if (str.front() == '"' && str.back() == '"') {
        return str.substr(1, str.length() - 2);
    }
    return str;
}

std::string quote(std::string str)
{
    return "\""+str+"\"";
}

std::string multi2string(std::vector<std::string> values)
{
    std::string result;
    for (const auto& value : values) {
        // remove any " contained in the string value, if present
        result += dequote(trim(value)) + ",";
    }
    if (!result.empty()) 
        result.pop_back(); // Remove the last comma
    
    return result;
}

std::vector<std::string> string2multi(std::string values)
{
    std::vector<std::string> result;

    values = dequote(trim(values));

    // Return values separated by commas, but ignore commas within quotes
    bool inside_quotes = false;
    std::string current_item;
    
    for (char c : values) {
        if (c == '"') {
            inside_quotes = !inside_quotes;
        } else if (c == ',' && !inside_quotes) {
            if (!current_item.empty()) {
                std::string final = dequote(trim(current_item));
                if (!final.empty()) 
                    result.push_back(final);
                current_item.clear();
            }
        } else {
            current_item += c;
        }
    }
    
    // Add the last item if not empty
    if (!current_item.empty()) {
        std::string final = dequote(trim(current_item));
        if (!final.empty()) 
            result.push_back(final);
    }
    
    return result;
}

int str2int(const std::string &str)
{
    try {
        return std::stoi(str);
    } catch (const std::exception& e) {
        std::cerr << "Error: Invalid integer string: [" << str << "]" << std::endl;
        return 0;
    }
}


void recursive_copy(const std::string & source, const std::string & destination) {
    try {
        if (std::filesystem::is_directory(source)) {
            if (!std::filesystem::exists(destination)) {
                std::filesystem::create_directory(destination);
            }
            for (const auto& entry : std::filesystem::directory_iterator(source)) {
                recursive_copy(entry.path(), destination / entry.path().filename());
            }
        } else if (std::filesystem::is_regular_file(source)) {
            std::filesystem::copy(source, destination, std::filesystem::copy_options::overwrite_existing);
        }
    } catch (const std::filesystem::filesystem_error& ex) {
        std::cerr << "Error copying " << source << " to " << destination << ": " << ex.what() << std::endl;
    }
}

void ensure_directories_exist(std::vector<std::string> directories)
{
    for (const auto& directory : directories) {
        if (!std::filesystem::exists(directory)) {
            std::filesystem::create_directories(directory);
        }
    }
}

} // namespace dropshell