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use log::info;
use rand;
use rusqlite;
use std::sync::mpsc;
use std::time;
#[derive(Debug)]
pub struct Post {
id: u32,
title: String,
author: String,
body: String,
}
#[derive(Debug)]
pub struct Conn {
db: rusqlite::Connection,
rx: mpsc::Receiver<Cmd>,
}
#[derive(Debug)]
pub enum Cmd {
Create,
Update,
Disconnect,
NOOP,
}
impl Conn {
fn init() -> rusqlite::Connection {
let start = time::Instant::now();
info!("Connecting to database");
let conn = rusqlite::Connection::open_with_flags(
"/tmp/db.sql",
rusqlite::OpenFlags::SQLITE_OPEN_FULL_MUTEX
| rusqlite::OpenFlags::SQLITE_OPEN_CREATE
| rusqlite::OpenFlags::SQLITE_OPEN_READ_WRITE,
)
.expect("Could not connect to DB");
conn.execute(
"CREATE TABLE IF NOT EXISTS posts (
id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
title TEXT NOT NULL,
author TEXT NOT NULL,
body TEXT NOT NULL
)",
rusqlite::NO_PARAMS,
)
.expect("Could not initialize DB");
info!(
"Database connection established in {}ms",
start.elapsed().as_millis()
);
conn
}
pub fn new(rx: mpsc::Receiver<Cmd>) -> Self {
Conn {
db: Conn::init(),
rx,
}
}
}
impl Cmd {
pub fn new(txt: &str) -> Self {
match txt {
"create" => Cmd::Create,
"update" => Cmd::Update,
"disconnect" => Cmd::Disconnect,
_ => Cmd::NOOP,
}
}
}
impl Post {
pub fn new(title: &str, author: &str, body: &str) -> Self {
let id = rand::random::<u32>();
let title = title.to_string();
let author = author.to_string();
let body = body.to_string();
Post {
id,
title,
author,
body,
}
}
pub fn id(&self) -> String {
format!("{}", self.id)
}
pub fn title(&self) -> String {
self.title.clone()
}
pub fn author(&self) -> String {
self.author.clone()
}
pub fn body(&self) -> String {
self.body.clone()
}
}
|