// Copyright 2025 OpenObserve Inc.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

use std::fs;

use async_recursion::async_recursion;
use async_trait::async_trait;

use crate::cli::data::{Context, cli::Cli};

pub struct Import {}

#[async_trait]
impl Context for Import {
    async fn operator(c: Cli) -> Result<bool, anyhow::Error> {
        read_files_in_directory(c.clone(), c.data.as_str()).await
    }
}

#[async_recursion]
async fn read_files_in_directory(c: Cli, dir_path: &str) -> Result<bool, anyhow::Error> {
    let entries = fs::read_dir(dir_path)?;
    for entry in entries {
        let entry = entry?;
        let path = entry.path();
        if path.is_file() {
            let content = fs::read(&path)?;
            let req = proto::cluster_rpc::IngestionRequest {
                org_id: c.org.clone(),
                stream_name: c.stream_name.clone(),
                stream_type: c.stream_type.clone(),
                data: Some(proto::cluster_rpc::IngestionData {
                    data: content.to_vec(),
                }),
                ingestion_type: Some(proto::cluster_rpc::IngestionType::Json.into()),
                metadata: None,
            };
            if let Err(e) = crate::service::ingestion::ingestion_service::ingest(req).await {
                eprintln!("insert data fail {path:?}: {e:?}");
                return Ok(false);
            } else {
                println!("insert data success: {path:?}");
            }
        } else if path.is_dir()
            && !read_files_in_directory(c.clone(), &path.to_string_lossy()).await?
        {
            return Ok(false);
        }
    }
    Ok(true)
}