//
use crate::{self as github, webhook};
use git_next_core::{git, server::RepoListenUrl, RegisteredWebhook, WebhookAuth, WebhookId};

use kxio::network;

// https://docs.github.com/en/rest/repos/webhooks?apiVersion=2022-11-28#create-a-repository-webhook
pub async fn register(
    github: &github::Github,
    repo_listen_url: &RepoListenUrl,
) -> git::forge::webhook::Result<RegisteredWebhook> {
    let repo_details = &github.repo_details;
    if repo_details.repo_config.is_none() {
        return Err(git::forge::webhook::Error::NoRepoConfig);
    };

    // remove any lingering webhooks for the same URL
    let existing_webhook_ids = webhook::list(github, repo_listen_url).await?;
    for webhook_id in existing_webhook_ids {
        webhook::unregister(github, &webhook_id).await?;
    }

    let net = &github.net;
    let hostname = repo_details.forge.hostname();
    let authorisation = WebhookAuth::generate();
    let request = network::NetRequest::new(
        network::RequestMethod::Post,
        network::NetUrl::new(format!(
            "https://api.{hostname}/repos/{}/hooks",
            repo_details.repo_path
        )),
        github::webhook::headers(repo_details.forge.token()),
        network::RequestBody::Json(network::json!({
            "name": "web",
            "active": true,
            "events": ["push"],
            "config": {
                "url": repo_listen_url.as_ref(),
                "content_type": "json",
                "secret": authorisation.to_string(),
                "insecure_ssl": "0",
            }
        })),
        network::ResponseType::Json,
        None,
        network::NetRequestLogging::None,
    );
    let result = net.post_json::<github::GithubHook>(request).await;
    match result {
        Ok(response) => {
            let Some(hook) = response.response_body() else {
                #[cfg(not(tarpaulin_include))]
                // request response is Json so response_body never returns None
                return Err(git::forge::webhook::Error::NetworkResponseEmpty);
            };
            tracing::info!(webhook_id = %hook.id, "Webhook registered");
            Ok(RegisteredWebhook::new(
                WebhookId::new(format!("{}", hook.id)),
                authorisation,
            ))
        }
        Err(e) => {
            tracing::warn!("Failed to register webhook");
            Err(git::forge::webhook::Error::FailedToRegister(e.to_string()))
        }
    }
}