server/src/http/partitions.rs

use crate::http::error::CustomError;
use crate::http::jwt::json_web_token::Identity;
use crate::http::shared::AppState;
use crate::http::COMPONENT;
use crate::state::command::EntryCommand;
use crate::streaming::session::Session;
use axum::extract::{Path, Query, State};
use axum::http::StatusCode;
use axum::routing::post;
use axum::{Extension, Json, Router};
use error_set::ErrContext;
use iggy::identifier::Identifier;
use iggy::partitions::create_partitions::CreatePartitions;
use iggy::partitions::delete_partitions::DeletePartitions;
use iggy::validatable::Validatable;
use std::sync::Arc;
use tracing::instrument;

pub fn router(state: Arc<AppState>) -> Router {
    Router::new()
        .route(
            "/streams/{stream_id}/topics/{topic_id}/partitions",
            post(create_partitions).delete(delete_partitions),
        )
        .with_state(state)
}

#[instrument(skip_all, name = "trace_create_partitions", fields(iggy_user_id = identity.user_id, iggy_stream_id = stream_id, iggy_topic_id = topic_id))]
async fn create_partitions(
    State(state): State<Arc<AppState>>,
    Extension(identity): Extension<Identity>,
    Path((stream_id, topic_id)): Path<(String, String)>,
    Json(mut command): Json<CreatePartitions>,
) -> Result<StatusCode, CustomError> {
    command.stream_id = Identifier::from_str_value(&stream_id)?;
    command.topic_id = Identifier::from_str_value(&topic_id)?;
    command.validate()?;

    let mut system = state.system.write().await;
    system
            .create_partitions(
                &Session::stateless(identity.user_id, identity.ip_address),
                &command.stream_id,
                &command.topic_id,
                command.partitions_count,
            )
            .await
            .with_error_context(|error| {
                format!(
                    "{COMPONENT} (error: {error}) - failed to create partitions, stream ID: {}, topic ID: {}",
                    stream_id, topic_id
                )
            })?;

    let system = system.downgrade();
    system
        .state
        .apply(identity.user_id, &EntryCommand::CreatePartitions(command))
        .await
        .with_error_context(|error| {
            format!(
                "{COMPONENT} (error: {error}) - failed to apply create partitions, stream ID: {}, topic ID: {}",
                stream_id, topic_id
            )
        })?;
    Ok(StatusCode::CREATED)
}

#[instrument(skip_all, name = "trace_delete_partitions", fields(iggy_user_id = identity.user_id, iggy_stream_id = stream_id, iggy_topic_id = topic_id))]
async fn delete_partitions(
    State(state): State<Arc<AppState>>,
    Extension(identity): Extension<Identity>,
    Path((stream_id, topic_id)): Path<(String, String)>,
    mut query: Query<DeletePartitions>,
) -> Result<StatusCode, CustomError> {
    query.stream_id = Identifier::from_str_value(&stream_id)?;
    query.topic_id = Identifier::from_str_value(&topic_id)?;
    query.validate()?;

    let mut system = state.system.write().await;
    system
            .delete_partitions(
                &Session::stateless(identity.user_id, identity.ip_address),
                &query.stream_id.clone(),
                &query.topic_id.clone(),
                query.partitions_count,
            )
            .await
            .with_error_context(|error| {
                format!(
                    "{COMPONENT} (error: {error}) - failed to delete partitions for topic with ID: {} in stream with ID: {}",
                    stream_id, topic_id
                )
            })?;

    let system = system.downgrade();
    system
        .state
        .apply(
            identity.user_id,
            &EntryCommand::DeletePartitions(DeletePartitions {
                stream_id: query.stream_id.clone(),
                topic_id: query.topic_id.clone(),
                partitions_count: query.partitions_count,
            }),
        )
        .await
        .with_error_context(|error| {
            format!(
                "{COMPONENT} (error: {error}) - failed to apply delete partitions, stream ID: {}, topic ID: {}",
                stream_id, topic_id
            )
        })?;
    Ok(StatusCode::NO_CONTENT)
}