#include "response.h"

#include "root.h"
#include "notfound.h"
#include "badge.h"

const char* Response::status200Header("Status: 200 OK");
const char* Response::status404Header("Status: 404 Not Found");
const char* Response::status405Header("Status: 405 Method Not Allowed");
const char* Response::status500Header("Status: 500 Internal Error");

const char* Response::pathDelimiter("/");
const char* Response::newLine("\n");
const char* Response::headerTerminator("\n\n");

const char* Response::contentTypeHTML("Content-type: text/html");
const char* Response::contentTypeSVG("Content-type: image/svg+xml;charset=utf-8");

constexpr const char* staticHop("static");

Response::Response(Type type):
    type(type)
{}

Response::~Response() {}

Response* Response::create(const std::string_view& path) {
    std::vector<std::string_view> split = splitPath(path);

    if (path.size() == 0) {
        return new Root();
    }

    const std::string_view& firstHop = split[0];
    if (firstHop == staticHop) {
        return new Badge(Badge::Kind::allStatic);
    }

    return new NotFound();
}

std::vector<std::string_view> Response::splitPath(std::string_view path) {
    std::vector<std::string_view> output;
    std::string_view::size_type first = 0;

    while (first < path.size()) {
        const std::string_view::size_type second = path.find_first_of(pathDelimiter, first);

        if (first != second)
            output.emplace_back(path.substr(first, second - first));

        if (second == std::string_view::npos)
            break;

        first = second + 1;
    }

    return output;
}