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use crate::flac::{CURRENT_VENDOR, get_vendor};
use anyhow::{Result, anyhow};
use directories::BaseDirs;
use std::{
path::{Path, PathBuf},
time::UNIX_EPOCH,
};
use turso::{Connection, params};
const TABLE_CREATE: &str = "CREATE TABLE IF NOT EXISTS flacs (path TEXT PRIMARY KEY UNIQUE, toencode BOOLEAN NOT NULL, modtime INTEGER)";
const ADD_FILE: &str = "INSERT INTO flacs (path, toencode, modtime) VALUES (?1, ?2, ?3)";
const UPDATE_FILE: &str = "UPDATE flacs SET toencode = ?2, modtime = ?3 WHERE path = ?1";
const TOENCODE_PATHS: &str = "SELECT path FROM flacs WHERE toencode";
const TOENCODE_NUMBER: &str = "SELECT COUNT(*) from flacs WHERE toencode";
const CHECK_FILE: &str = "SELECT exists(SELECT 1 FROM flacs WHERE path = ?1)";
const FETCH_FILES: &str = "SELECT path FROM flacs";
const REMOVE_FILE: &str = "DELETE FROM flacs WHERE path = ?1";
const DEDUPE_DB: &str =
"DELETE FROM flacs WHERE rowid NOT IN (SELECT MAX(rowid) FROM flacs GROUP BY path)";
const GET_MODTIME: &str = "SELECT modtime FROM flacs WHERE path = ?1";
pub(crate) async fn init_db(path: Option<&Path>) -> Result<turso::Database> {
let db = if let Some(file) = path {
turso::Builder::new_local(file.to_str().unwrap())
.build()
.await?
} else if let Some(base_dir) = BaseDirs::new() {
let file = base_dir.data_dir().join("reencoder.db");
turso::Builder::new_local(file.to_str().unwrap())
.build()
.await?
} else {
return Err(anyhow!("Failed to locate data directory"));
};
let conn = db.connect()?;
conn.execute(TABLE_CREATE, ()).await?;
Ok(db)
}
pub(crate) async fn insert_file(conn: &Connection, filename: &Path) -> Result<()> {
let toencode = !matches!(get_vendor(filename)?.as_str(), CURRENT_VENDOR);
let modtime = filename
.metadata()?
.modified()?
.duration_since(UNIX_EPOCH)?
.as_secs();
conn.execute(
ADD_FILE,
params![filename.to_str().unwrap(), toencode, modtime],
)
.await?;
Ok(())
}
pub(crate) async fn update_file(conn: &Connection, filename: &Path) -> Result<()> {
let modtime = filename
.metadata()?
.modified()?
.duration_since(UNIX_EPOCH)?
.as_secs();
conn.execute(
UPDATE_FILE,
params![filename.to_str().unwrap(), false, modtime],
)
.await?;
Ok(())
}
pub(crate) async fn check_file(conn: &Connection, filename: &Path) -> Result<bool> {
Ok(conn
.query(CHECK_FILE, params!(filename.to_str().unwrap()))
.await?
.next()
.await?
.unwrap()
.get::<bool>(0)?)
}
pub(crate) async fn init_clean_files(conn: &Connection) -> Result<Vec<PathBuf>, turso::Error> {
conn.execute(DEDUPE_DB, ()).await?;
let mut rows = conn.query(FETCH_FILES, ()).await?;
let mut files = Vec::new();
while let Ok(Some(row)) = rows.next().await {
let path: String = row.get(0)?;
files.push(PathBuf::from(path));
}
Ok(files)
}
pub(crate) async fn remove_file(conn: &Connection, filename: &Path) -> Result<()> {
conn.execute(REMOVE_FILE, params!(filename.to_str().unwrap()))
.await?;
Ok(())
}
pub(crate) async fn get_toencode_files(conn: &Connection) -> Result<Vec<PathBuf>, turso::Error> {
let mut rows = conn.query(TOENCODE_PATHS, ()).await?;
let mut files: Vec<PathBuf> = Vec::new();
while let Ok(Some(row)) = rows.next().await {
let path: String = row.get(0)?;
files.push(PathBuf::from(path));
}
Ok(files)
}
pub(crate) async fn get_toencode_number(conn: &Connection) -> Result<u64, turso::Error> {
Ok(conn
.query(TOENCODE_NUMBER, ())
.await?
.next()
.await?
.unwrap()
.get::<u64>(0)?)
}
pub(crate) async fn get_modtime(conn: &Connection, file: &Path) -> Result<u64> {
Ok(conn
.query(GET_MODTIME, params![file.to_str().unwrap()])
.await?
.next()
.await?
.unwrap()
.get::<u64>(0)?)
}
pub(crate) async fn vacuum(conn: &Connection) -> Result<()> {
conn.execute("VACUUM", ()).await?;
Ok(())
}
#[cfg(test)]
mod tests {
use super::*;
use macro_rules_attribute::apply;
use smol_macros::{Executor, test};
#[apply(test!)]
async fn check_localfiles(ex: &Executor<'_>) {
let dbname = PathBuf::from("temp1.db");
let filenames = [
"./samples/16bit.flac",
"./samples/24bit.flac",
"./samples/32bit.flac",
];
let mut counter = 0;
ex.spawn(async move {
let db = init_db(Some(&dbname)).await.unwrap();
let conn = db.connect().unwrap();
for file in filenames {
let path = PathBuf::from(file);
insert_file(&conn, &path).await.unwrap();
}
let mut returned = conn.query(TOENCODE_PATHS, ()).await.unwrap();
while let Ok(Some(_)) = returned.next().await {
counter += 1
}
std::fs::remove_file(dbname).unwrap();
assert!(counter == 0)
})
.await;
}
#[apply(test!)]
async fn check_update(ex: &Executor<'_>) {
let dbname = PathBuf::from("temp2.db");
let filenames = [
"./samples/16bit.flac",
"./samples/24bit.flac",
"./samples/32bit.flac",
];
ex.spawn(async move {
let db = init_db(Some(&dbname)).await.unwrap();
let conn = db.connect().unwrap();
for file in filenames {
insert_file(&conn, &Path::new(file).canonicalize().unwrap())
.await
.unwrap();
}
conn.execute(
UPDATE_FILE,
params![
Path::new("./samples/16bit.flac")
.canonicalize()
.unwrap()
.to_str()
.unwrap(),
true,
""
],
)
.await
.unwrap();
update_file(
&conn,
&Path::new("./samples/16bit.flac").canonicalize().unwrap(),
)
.await
.unwrap();
let mut returned = conn.query(TOENCODE_PATHS, ()).await.unwrap();
let mut counter = 0;
while let Ok(Some(_)) = returned.next().await {
counter += 1
}
std::fs::remove_file(dbname).unwrap();
assert!(counter == 0)
});
}
}
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