mod change_user_address;
mod change_user_tier;
mod change_user_tier_by_address;
mod change_user_tier_by_key;
mod check_config;
mod count_users;
mod create_user;
mod drop_migration_lock;
mod list_user_tier;
mod rpc_accounting;
mod sentryd;
mod transfer_key;
mod user_export;
mod user_import;

use argh::FromArgs;
use log::{info, warn};
use std::fs;
use web3_proxy::{
    app::{get_db, get_migrated_db, APP_USER_AGENT},
    config::TopConfig,
};

#[derive(Debug, FromArgs)]
/// Command line interface for admins to interact with web3_proxy
pub struct CliConfig {
    /// path to the application config (optional).
    #[argh(option)]
    pub config: Option<String>,

    /// if no config, what database the client should connect to. Defaults to dev db
    #[argh(
        option,
        default = "\"mysql://root:dev_web3_proxy@127.0.0.1:13306/dev_web3_proxy\".to_string()"
    )]
    pub db_url: String,

    /// if no config, what sentry url should the client should connect to
    #[argh(option)]
    pub sentry_url: Option<String>,

    /// this one cli can do multiple things
    #[argh(subcommand)]
    sub_command: SubCommand,
}

#[derive(FromArgs, PartialEq, Debug)]
#[argh(subcommand)]
enum SubCommand {
    ChangeUserAddress(change_user_address::ChangeUserAddressSubCommand),
    ChangeUserTier(change_user_tier::ChangeUserTierSubCommand),
    ChangeUserTierByAddress(change_user_tier_by_address::ChangeUserTierByAddressSubCommand),
    ChangeUserTierByKey(change_user_tier_by_key::ChangeUserTierByKeySubCommand),
    CheckConfig(check_config::CheckConfigSubCommand),
    CountUsers(count_users::CountUsersSubCommand),
    CreateUser(create_user::CreateUserSubCommand),
    DropMigrationLock(drop_migration_lock::DropMigrationLockSubCommand),
    RpcAccounting(rpc_accounting::RpcAccountingSubCommand),
    Sentryd(sentryd::SentrydSubCommand),
    TransferKey(transfer_key::TransferKeySubCommand),
    UserExport(user_export::UserExportSubCommand),
    UserImport(user_import::UserImportSubCommand),
    // TODO: sub command to downgrade migrations? sea-orm has this but doing downgrades here would be easier+safer
    // TODO: sub command to add new api keys to an existing user?
    // TODO: sub command to change a user's tier
}

#[tokio::main]
async fn main() -> anyhow::Result<()> {
    // if RUST_LOG isn't set, configure a default
    // TODO: is there a better way to do this?
    let rust_log = match std::env::var("RUST_LOG") {
        Ok(x) => x,
        Err(_) => "info,web3_proxy=debug,web3_proxy_cli=debug".to_string(),
    };

    // this probably won't matter for us in docker, but better safe than sorry
    fdlimit::raise_fd_limit();

    let mut cli_config: CliConfig = argh::from_env();

    let _top_config = if let Some(top_config_path) = cli_config.config.clone() {
        let top_config: String = fs::read_to_string(top_config_path)?;
        let top_config: TopConfig = toml::from_str(&top_config)?;

        if let Some(db_url) = top_config.app.db_url.clone() {
            cli_config.db_url = db_url;
        }

        if let Some(sentry_url) = top_config.app.sentry_url.clone() {
            cli_config.sentry_url = Some(sentry_url);
        }

        Some(top_config)
    } else {
        None
    };

    let logger = env_logger::builder().parse_filters(&rust_log).build();

    let max_level = logger.filter();

    // connect to sentry for error reporting
    // if no sentry, only log to stdout
    let _sentry_guard = if let Some(sentry_url) = cli_config.sentry_url.clone() {
        let logger = sentry::integrations::log::SentryLogger::with_dest(logger);

        log::set_boxed_logger(Box::new(logger)).unwrap();

        let guard = sentry::init((
            sentry_url,
            sentry::ClientOptions {
                release: sentry::release_name!(),
                // TODO: Set this a to lower value (from config) in production
                traces_sample_rate: 1.0,
                ..Default::default()
            },
        ));

        Some(guard)
    } else {
        log::set_boxed_logger(Box::new(logger)).unwrap();

        None
    };

    log::set_max_level(max_level);

    info!("{}", APP_USER_AGENT);

    match cli_config.sub_command {
        SubCommand::ChangeUserAddress(x) => {
            let db_conn = get_db(cli_config.db_url, 1, 1).await?;

            x.main(&db_conn).await
        }
        SubCommand::ChangeUserTier(x) => {
            let db_conn = get_db(cli_config.db_url, 1, 1).await?;

            x.main(&db_conn).await
        }
        SubCommand::ChangeUserTierByAddress(x) => {
            let db_conn = get_db(cli_config.db_url, 1, 1).await?;

            x.main(&db_conn).await
        }
        SubCommand::ChangeUserTierByKey(x) => {
            let db_conn = get_db(cli_config.db_url, 1, 1).await?;

            x.main(&db_conn).await
        }
        SubCommand::CheckConfig(x) => x.main().await,
        SubCommand::CreateUser(x) => {
            let db_conn = get_migrated_db(cli_config.db_url, 1, 1).await?;

            x.main(&db_conn).await
        }
        SubCommand::CountUsers(x) => {
            let db_conn = get_db(cli_config.db_url, 1, 1).await?;

            x.main(&db_conn).await
        }
        SubCommand::DropMigrationLock(x) => {
            // very intentionally, do NOT run migrations here
            let db_conn = get_db(cli_config.db_url, 1, 1).await?;

            x.main(&db_conn).await
        }
        SubCommand::Sentryd(x) => {
            if cli_config.sentry_url.is_none() {
                warn!("sentry_url is not set! Logs will only show in this console");
            }

            x.main().await
        }
        SubCommand::RpcAccounting(x) => {
            let db_conn = get_migrated_db(cli_config.db_url, 1, 1).await?;

            x.main(&db_conn).await
        }
        SubCommand::TransferKey(x) => {
            let db_conn = get_db(cli_config.db_url, 1, 1).await?;

            x.main(&db_conn).await
        }
        SubCommand::UserExport(x) => {
            let db_conn = get_migrated_db(cli_config.db_url, 1, 1).await?;

            x.main(&db_conn).await
        }
        SubCommand::UserImport(x) => {
            let db_conn = get_migrated_db(cli_config.db_url, 1, 1).await?;

            x.main(&db_conn).await
        }
    }
}