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pub mod decoder;
pub mod encoder;

pub mod method;
pub mod content_body;
pub mod content_header;


use self::method::MethodPayload;
use self::content_header::ContentHeaderPayload;
use self::content_body::ContentBodyPayload;


pub const FRAME_END_OCTET: u8 = 0xCE;


#[derive(PartialEq, Clone, Debug)]
pub struct Frame {
    pub header: FrameHeader,
    pub payload: FramePayload,
}


#[derive(PartialEq, Clone, Debug)]
pub struct FrameHeader {
    pub channel: u16,
}


#[derive(Eq, PartialEq, Clone, Debug)]
pub enum FrameType {
    Method,
    ContentHeader,
    ContentBody,
    Heartbeat,
}


#[derive(PartialEq, Clone, Debug)]
pub enum FramePayload {
    Method(MethodPayload),
    ContentHeader(ContentHeaderPayload),
    ContentBody(ContentBodyPayload),
    Heartbeat,
}


// Implementation of Frame {{{
impl Frame {
    pub fn method(&self) -> Option<&MethodPayload> {
        match &self.payload {
            &FramePayload::Method(ref p) => Some(p),
            _ => None,
        }
    }

    pub fn content_header(&self) -> Option<&ContentHeaderPayload> {
        match &self.payload {
            &FramePayload::ContentHeader(ref p) => Some(p),
            _ => None,
        }
    }

    pub fn content_body(&self) -> Option<&ContentBodyPayload> {
        match &self.payload {
            &FramePayload::ContentBody(ref p) => Some(p),
            _ => None,
        }
    }

    pub fn heartbeat(&self) -> Option<()> {
        match &self.payload {
            &FramePayload::Heartbeat => Some(()),
            _ => None,
        }
    }
}
// }}}