use anyhow::{Error, Result};
use rusqlite_migration::{Migrations, M};
use tokio_rusqlite::Connection;

pub mod files;
mod utils;

pub async fn init(path: &str) -> Result<Connection> {
    let connection = Connection::open(path)
        .await
        .map_err(|err| Error::msg(format!("Error opening connection: {err}")))?;

    apply_migrations(&connection).await?;
    set_pragma(&connection, "foreign_keys", "ON").await?;
    set_pragma(&connection, "journal_mode", "wal").await?;
    Ok(connection)
}

async fn apply_migrations(conn: &Connection) -> Result<()> {
    let migrations = Migrations::new(vec![
        M::up(include_str!("migrations/01-init.sql")),
        M::up(include_str!("migrations/02-strict-tables.sql")),
    ]);

    Ok(conn
        .call(move |conn| {
            migrations
                .to_latest(conn)
                .map_err(|migration_err| tokio_rusqlite::Error::Other(Box::new(migration_err)))
        })
        .await?)
}

async fn set_pragma(
    conn: &Connection,
    key: impl Into<String>,
    value: impl Into<String>,
) -> Result<()> {
    let key = key.into();
    let value = value.into();
    Ok(conn
        .call(move |conn| {
            conn.pragma_update(None, &key, &value)
                .map_err(tokio_rusqlite::Error::Rusqlite)
        })
        .await?)
}