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path: root/crates/turtle/src/command/client/sync.rs
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use clap::Subcommand;
use eyre::{Result, WrapErr};
use serde_json::json;

use crate::{
    atuin_client::{
        database::ClientSqlite, encryption, history::store::HistoryStore, record::{sqlite_store::SqliteStore, store::Store, sync}, settings::Settings
    },
    atuin_common::utils,
};

mod status;

#[derive(Subcommand, Debug)]
#[command(infer_subcommands = true)]
pub(crate) enum Cmd {
    /// Sync with the configured server
    Perform {
        /// Force re-download everything
        #[arg(long, short)]
        force: bool,
    },

    /// Print (or generate) the encryption key and user id for transfer to another machine
    KeyAndId {},

    /// Display the sync status
    Status,
}

impl Cmd {
    pub(crate) async fn run(
        self,
        settings: Settings,
        db: &ClientSqlite,
        store: SqliteStore,
    ) -> Result<()> {
        match self {
            Self::Perform { force } => run(&settings, force, db, store).await,
            Self::Status => status::run(&settings).await,
            Self::KeyAndId {} => {
                use crate::atuin_client::encryption::{encode_key, load_key};

                let key = load_key(&settings).wrap_err("could not load encryption key")?;
                let user_id = settings
                    .sync
                    .user_id()
                    .wrap_err("Failed to load user-id")?
                    .unwrap_or_else(utils::uuid_v7);

                let key = encode_key(&key).wrap_err("could not encode encryption key")?;

                let json = serde_json::to_string_pretty(&json!({ "key": key, "user_id": user_id }))
                    .expect("Will always be formattable");

                println!("{json}");

                Ok(())
            }
        }
    }
}

async fn run(
    settings: &Settings,
    force: bool,
    db: &ClientSqlite,
    store: SqliteStore,
) -> Result<()> {
    let encryption_key: [u8; 32] = encryption::load_key(settings)
        .context("could not load encryption key")?
        .into();

    let host_id = Settings::host_id().await?;
    let history_store = HistoryStore::new(store.clone(), host_id, encryption_key);

    let (uploaded, downloaded) = sync::sync(settings, &store, &encryption_key)
        .await
        .map_err(crate::print_error::format_sync_error)?;

    crate::sync::build(settings, &store, db, Some(&downloaded)).await?;

    println!("{uploaded}/{} up/down to record store", downloaded.len());

    let history_length = db.history_count(true).await?;
    let store_history_length = store.len_tag("history").await?;

    #[expect(clippy::cast_sign_loss)]
    if history_length as u64 > store_history_length {
        println!("{history_length} in history index, but {store_history_length} in history store");
        println!("Running automatic history store init...");

        // Internally we use the global filter mode, so this context is ignored.
        // don't recurse or loop here.
        history_store.init_store(db).await?;

        println!("Re-running sync due to new records locally");

        // we'll want to run sync once more, as there will now be stuff to upload
        let (uploaded, downloaded) = sync::sync(settings, &store, &encryption_key)
            .await
            .map_err(crate::print_error::format_sync_error)?;

        crate::sync::build(settings, &store, db, Some(&downloaded)).await?;

        println!("{uploaded}/{} up/down to record store", downloaded.len());
    }

    println!(
        "Sync complete! {} items in history database, force: {}",
        db.history_count(true).await?,
        force
    );

    Ok(())
}