kotoba-projection-engine 0.1.21

//! GQL Engine Integration
//!
//! Integration layer between Projection Engine and GQL Query Engine.

use std::sync::Arc;
use anyhow::Result;

use kotoba_storage::KeyValueStore;
use crate::ProjectionEngine;

/// Projection Engine adapter for GQL engine
pub struct ProjectionEngineAdapter<T: KeyValueStore> {
    projection_engine: Arc<ProjectionEngine<T>>,
}

impl<T: KeyValueStore + 'static> ProjectionEngineAdapter<T> {
    /// Create new adapter
    pub fn new(projection_engine: Arc<ProjectionEngine<T>>) -> Self {
        Self { projection_engine }
    }

    /// Execute GQL query (simplified implementation)
    pub async fn execute_gql_query(
        &self,
        query: &str,
        _context: serde_json::Value,
    ) -> Result<serde_json::Value> {
        // Simplified GQL query implementation
        // This would need a full GQL parser and executor
        // For now, delegate to projection engine's query method
        self.projection_engine.query_projections(serde_json::json!({"query": query})).await
    }

    /// Execute GQL statement (simplified implementation)
    pub async fn execute_gql_statement(
        &self,
        statement: &str,
        _context: serde_json::Value,
    ) -> Result<serde_json::Value> {
        // Simplified GQL statement implementation
        // For now, return a basic response
        Ok(serde_json::json!({
            "statement": statement,
            "status": "not_implemented",
            "message": "GQL statement execution is not fully implemented yet"
        }))
    }
}