hive-router 0.0.47

use std::collections::HashMap;

use crate::pipeline::authorization::AuthorizationError;
use crate::pipeline::coerce_variables::CoerceVariablesPayload;
use crate::pipeline::error::PipelineError;
use crate::pipeline::normalize::GraphQLNormalizationPayload;
use crate::shared_state::RouterSharedState;
use hive_router_internal::telemetry::traces::spans::graphql::{
    GraphQLExecuteSpan, GraphQLOperationSpan,
};
use hive_router_plan_executor::execution::client_request_details::ClientRequestDetails;
use hive_router_plan_executor::execution::jwt_forward::JwtAuthForwardingPlan;
use hive_router_plan_executor::execution::plan::{
    execute_query_plan, PlanExecutionOutput, QueryPlanExecutionOpts,
};
use hive_router_plan_executor::hooks::on_supergraph_load::SupergraphData;
use hive_router_plan_executor::introspection::resolve::IntrospectionContext;
use hive_router_plan_executor::plugin_context::PluginRequestState;
use hive_router_query_planner::planner::plan_nodes::QueryPlan;
use http::HeaderName;
use sonic_rs::json;
use tracing::Instrument;

pub static EXPOSE_QUERY_PLAN_HEADER: HeaderName = HeaderName::from_static("hive-expose-query-plan");

#[derive(Clone, Debug, PartialEq, Eq)]
pub enum ExposeQueryPlanMode {
    Yes,
    No,
    DryRun,
}

pub struct PlannedRequest<'req> {
    pub normalized_payload: &'req GraphQLNormalizationPayload,
    pub query_plan_payload: &'req QueryPlan,
    pub variable_payload: &'req CoerceVariablesPayload,
    pub client_request_details: &'req ClientRequestDetails<'req>,
    pub authorization_errors: Vec<AuthorizationError>,
    pub plugin_req_state: &'req Option<PluginRequestState<'req>>,
}

#[inline]
pub async fn execute_plan(
    supergraph: &SupergraphData,
    app_state: &RouterSharedState,
    planned_request: PlannedRequest<'_>,
    span: &GraphQLOperationSpan,
) -> Result<PlanExecutionOutput, PipelineError> {
    let execute_span = GraphQLExecuteSpan::new();
    async {
        let introspection_context = IntrospectionContext {
            query: planned_request
                .normalized_payload
                .operation_for_introspection
                .as_deref(),
            schema: &supergraph.planner.consumer_schema.document,
            metadata: &supergraph.metadata,
        };

        let mut extensions = HashMap::new();

        let mut expose_query_plan = ExposeQueryPlanMode::No;
        if app_state.router_config.query_planner.allow_expose {
            if let Some(expose_qp_header) = planned_request
                .client_request_details
                .headers
                .get(&EXPOSE_QUERY_PLAN_HEADER)
            {
                let str_value = expose_qp_header.to_str().unwrap_or_default().trim();
                match str_value {
                    "true" => expose_query_plan = ExposeQueryPlanMode::Yes,
                    "dry-run" => expose_query_plan = ExposeQueryPlanMode::DryRun,
                    _ => {}
                }
            }
        }

        if matches!(
            expose_query_plan,
            ExposeQueryPlanMode::Yes | ExposeQueryPlanMode::DryRun
        ) {
            extensions.insert(
                "queryPlan".into(),
                sonic_rs::to_value(&planned_request.query_plan_payload)
                    .map_err(PipelineError::QueryPlanSerializationFailed)?,
            );
        }

        if matches!(expose_query_plan, ExposeQueryPlanMode::DryRun) {
            let body = sonic_rs::to_vec(&json!({
                "extensions": extensions,
            }))
            .map_err(PipelineError::QueryPlanSerializationFailed)?;

            return Ok(PlanExecutionOutput {
                body,
                ..Default::default()
            });
        }

        let jwt_auth_forwarding: Option<JwtAuthForwardingPlan> = if app_state
            .router_config
            .jwt
            .is_jwt_extensions_forwarding_enabled()
        {
            planned_request
                .client_request_details
                .jwt
                .build_forwarding_plan(
                    &app_state
                        .router_config
                        .jwt
                        .forward_claims_to_upstream_extensions
                        .field_name,
                )?
        } else {
            None
        };

        let result = execute_query_plan(QueryPlanExecutionOpts {
            query_plan: planned_request.query_plan_payload,
            operation_for_plan: &planned_request.normalized_payload.operation_for_plan,
            projection_plan: &planned_request.normalized_payload.projection_plan,
            headers_plan: &app_state.headers_plan,
            variable_values: &planned_request.variable_payload.variables_map,
            extensions,
            client_request: planned_request.client_request_details,
            introspection_context: &introspection_context,
            operation_type_name: planned_request.normalized_payload.root_type_name,
            jwt_auth_forwarding,
            graphql_error_recorder: app_state.telemetry_context.metrics.graphql.error_recorder(),
            executors: &supergraph.subgraph_executor_map,
            initial_errors: planned_request
                .authorization_errors
                .iter()
                .map(|e| e.into())
                .collect(),
            span,
            plugin_req_state: planned_request.plugin_req_state,
        })
        .await?;

        Ok(result)
    }
    .instrument(execute_span.span)
    .await
}