mod branch;
pub mod handlers;
mod load;
pub mod messages;

#[cfg(test)]
mod tests;

use std::time::Duration;

use actix::prelude::*;

use derive_more::Deref;
use git_next_config as config;
use git_next_git as git;

use kxio::network::Network;
use tracing::{info, warn, Instrument};

#[derive(Clone, Debug, Default)]
pub struct RepoActorLog(std::sync::Arc<std::sync::RwLock<Vec<String>>>);
impl Deref for RepoActorLog {
    type Target = std::sync::Arc<std::sync::RwLock<Vec<String>>>;

    fn deref(&self) -> &Self::Target {
        &self.0
    }
}

/// An actor that represents a Git Repository.
///
/// When this actor is started it is sent the [CloneRepo] message.
#[derive(Debug, derive_more::Display, derive_with::With)]
#[display("{}:{}:{}", generation, repo_details.forge.forge_alias(), repo_details.repo_alias)]
pub struct RepoActor {
    sleep_duration: std::time::Duration,
    generation: git::Generation,
    message_token: messages::MessageToken,
    repo_details: git::RepoDetails,
    webhook: config::server::Webhook,
    webhook_id: Option<config::WebhookId>, // INFO: if [None] then no webhook is configured
    webhook_auth: Option<config::WebhookAuth>, // INFO: if [None] then no webhook is configured
    last_main_commit: Option<git::Commit>,
    last_next_commit: Option<git::Commit>,
    last_dev_commit: Option<git::Commit>,
    repository_factory: Box<dyn git::repository::RepositoryFactory>,
    open_repository: Option<Box<dyn git::repository::OpenRepositoryLike>>,
    net: Network,
    forge: Box<dyn git::ForgeLike>,
    log: Option<RepoActorLog>,
}
impl RepoActor {
    pub fn new(
        repo_details: git::RepoDetails,
        forge: Box<dyn git::ForgeLike>,
        webhook: config::server::Webhook,
        generation: git::Generation,
        net: Network,
        repository_factory: Box<dyn git::repository::RepositoryFactory>,
        sleep_duration: std::time::Duration,
    ) -> Self {
        let message_token = messages::MessageToken::default();
        Self {
            generation,
            message_token,
            repo_details,
            webhook,
            webhook_id: None,
            webhook_auth: None,
            last_main_commit: None,
            last_next_commit: None,
            last_dev_commit: None,
            repository_factory,
            open_repository: None,
            forge,
            net,
            sleep_duration,
            log: None,
        }
    }
}
impl Actor for RepoActor {
    type Context = Context<Self>;
    #[tracing::instrument(name = "RepoActor::stopping", skip_all, fields(repo = %self.repo_details))]
    fn stopping(&mut self, ctx: &mut Self::Context) -> Running {
        tracing::debug!("stopping");
        info!("Checking webhook");
        match self.webhook_id.take() {
            Some(webhook_id) => {
                tracing::warn!("stopping - unregistering webhook");
                info!(%webhook_id, "Unregistring webhook");
                let forge = self.forge.duplicate();
                async move {
                    if let Err(err) = forge.unregister_webhook(&webhook_id).await {
                        warn!("unregistering webhook: {err}");
                    }
                }
                .in_current_span()
                .into_actor(self)
                .wait(ctx);
                Running::Continue
            }
            None => Running::Stop,
        }
    }
}

pub fn delay_send<M>(
    addr: Addr<RepoActor>,
    delay: Duration,
    msg: M,
    log: &Option<crate::RepoActorLog>,
) where
    M: actix::Message + Send + 'static + std::fmt::Debug,
    RepoActor: actix::Handler<M>,
    <M as actix::Message>::Result: Send,
{
    let log_message = format!("send-after-delay: {:?}", msg);
    tracing::debug!(log_message);
    logger(log, log_message);
    std::thread::sleep(delay);
    do_send(addr, msg, log)
}

pub fn do_send<M>(_addr: Addr<RepoActor>, msg: M, log: &Option<crate::RepoActorLog>)
where
    M: actix::Message + Send + 'static + std::fmt::Debug,
    RepoActor: actix::Handler<M>,
    <M as actix::Message>::Result: Send,
{
    let log_message = format!("send: {:?}", msg);
    tracing::debug!(log_message);
    logger(log, log_message);
    #[cfg(not(test))]
    _addr.do_send(msg)
}

pub fn logger(log: &Option<crate::RepoActorLog>, message: impl Into<String>) {
    if let Some(log) = log {
        let message: String = message.into();
        tracing::debug!(message);
        let _ = log.write().map(|mut l| l.push(message));
    }
}