use crate::types::http::*;
use std::fmt;

impl fmt::Display for Method {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        match self {
            Method::ALL => write!(f, "ALL"),
            Method::GET => write!(f, "GET"),
            Method::POST => write!(f, "POST"),
            Method::PUT => write!(f, "PUT"),
            Method::DELETE => write!(f, "DELETE"),
        }
    }
}

impl From<String> for Method {
    fn from(s: String) -> Self {
        match s.to_uppercase().as_str() {
            "GET" => Method::GET,
            "POST" => Method::POST,
            "PUT" => Method::PUT,
            "DELETE" => Method::DELETE,
            _ => Method::ALL,
        }
    }
}

impl StatusCode {
    pub fn to_code(&self) -> u16 { *self as u16 }

    pub fn reason_phrase(&self) -> &'static str {
        match self {
            StatusCode::Ok => "OK",
            StatusCode::Created => "Created",
            StatusCode::NoContent => "No Content",
            StatusCode::MovedPermanently => "Moved Permanently",
            StatusCode::Found => "Found",
            StatusCode::SeeOther => "See Other",
            StatusCode::NotModified => "Not Modified",
            StatusCode::TemporaryRedirect => "Temporary Redirect",
            StatusCode::BadRequest => "Bad Request",
            StatusCode::Unauthorized => "Unauthorized",
            StatusCode::Forbidden => "Forbidden",
            StatusCode::NotFound => "Not Found",
            StatusCode::MethodNotAllowed => "Method Not Allowed",
            StatusCode::InternalServerError => "Internal Server Error",
        }
    }
}

impl From<u16> for StatusCode {
    fn from(code: u16) -> Self {
        match code {
            200 => StatusCode::Ok,
            201 => StatusCode::Created,
            204 => StatusCode::NoContent,
            301 => StatusCode::MovedPermanently,
            302 => StatusCode::Found,
            303 => StatusCode::SeeOther,
            304 => StatusCode::NotModified,
            307 => StatusCode::TemporaryRedirect,
            400 => StatusCode::BadRequest,
            401 => StatusCode::Unauthorized,
            403 => StatusCode::Forbidden,
            404 => StatusCode::NotFound,
            405 => StatusCode::MethodNotAllowed,
            500 => StatusCode::InternalServerError,
            _ => panic!("Unsupported status code"),
        }
    }
}

impl Default for Response {
    fn default() -> Self { Self::new() }
}

impl From<&mut Response> for Response {
    fn from(response: &mut Response) -> Self { std::mem::replace(response, Response::default()) }
}