1pub mod kvp;
 2
 3use std::fs;
 4use std::ops::Deref;
 5use std::path::Path;
 6
 7use anyhow::Result;
 8use indoc::indoc;
 9use sqlez::connection::Connection;
10use sqlez::domain::Domain;
11use sqlez::thread_safe_connection::ThreadSafeConnection;
12
13const INITIALIZE_QUERY: &'static str = indoc! {"
14    PRAGMA journal_mode=WAL;
15    PRAGMA synchronous=NORMAL;
16    PRAGMA foreign_keys=TRUE;
17    PRAGMA case_sensitive_like=TRUE;
18"};
19
20#[derive(Clone)]
21pub struct Db<D: Domain>(ThreadSafeConnection<D>);
22
23impl<D: Domain> Deref for Db<D> {
24    type Target = sqlez::connection::Connection;
25
26    fn deref(&self) -> &Self::Target {
27        &self.0.deref()
28    }
29}
30
31impl<D: Domain> Db<D> {
32    /// Open or create a database at the given directory path.
33    pub fn open(db_dir: &Path, channel: &'static str) -> Self {
34        // Use 0 for now. Will implement incrementing and clearing of old db files soon TM
35        let current_db_dir = db_dir.join(Path::new(&format!("0-{}", channel)));
36        fs::create_dir_all(&current_db_dir)
37            .expect("Should be able to create the database directory");
38        let db_path = current_db_dir.join(Path::new("db.sqlite"));
39
40        Db(
41            ThreadSafeConnection::new(db_path.to_string_lossy().as_ref(), true)
42                .with_initialize_query(INITIALIZE_QUERY),
43        )
44    }
45
46    /// Open a in memory database for testing and as a fallback.
47    pub fn open_in_memory(db_name: &str) -> Self {
48        Db(ThreadSafeConnection::new(db_name, false).with_initialize_query(INITIALIZE_QUERY))
49    }
50
51    pub fn persisting(&self) -> bool {
52        self.persistent()
53    }
54
55    pub fn write_to<P: AsRef<Path>>(&self, dest: P) -> Result<()> {
56        let destination = Connection::open_file(dest.as_ref().to_string_lossy().as_ref());
57        self.backup_main(&destination)
58    }
59
60    pub fn open_as<D2: Domain>(&self) -> Db<D2> {
61        Db(self.0.for_domain())
62    }
63}