/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   Request.cpp                                        :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*                                                +#+#+#+#+#+   +#+           */
/*                                                                            */
/* ************************************************************************** */

#include "http/Request.hpp"

#include <algorithm>
#include <cctype>

namespace webserv {

const char* toString(Method method) noexcept {
  switch (method) {
    case Method::Get:
      return "GET";
    case Method::Post:
      return "POST";
    case Method::Delete:
      return "DELETE";
  }
  return "GET";
}

bool headerNameEquals(std::string_view a, std::string_view b) noexcept {
  return std::ranges::equal(a, b, [](unsigned char x, unsigned char y) {
    return std::tolower(x) == std::tolower(y);
  });
}

std::optional<std::string_view> Request::header(std::string_view name) const noexcept {
  for (const auto& [fieldName, value] : headers) {
    if (headerNameEquals(fieldName, name)) {
      return std::string_view(value);
    }
  }
  return std::nullopt;
}

}  // namespace webserv