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use crate::entry::Entry;
use crate::errors::Error;
pub trait Output {
fn header(&mut self) -> Result<(), Error>;
fn entries(&mut self, entries: &Vec<Entry>) -> Result<(), Error>;
fn footer(&mut self) -> Result<(), Error>;
}
pub struct HTML<B> {
buf: B,
}
impl<B: std::io::Write> HTML<B> {
pub fn new(buf: B) -> HTML<B> {
HTML { buf: buf }
}
}
impl<B: std::io::Write> Output for HTML<B> {
fn header(&mut self) -> Result<(), Error> {
self.buf.write(
"<!DOCTYPE html>\
<html>\
<head>\
<meta charset=\"utf-8\"/>\
</head>\
<body>\
<table>"
.as_bytes(),
)?;
Ok(())
}
fn entries(&mut self, entries: &Vec<Entry>) -> Result<(), Error> {
for entry in entries {
self.buf.write(format!("{}", entry).as_bytes())?;
}
Ok(self.buf.flush()?)
}
fn footer(&mut self) -> Result<(), Error> {
self.buf.write("</table></body></html>".as_bytes())?;
Ok(())
}
}