coderlib 0.1.0

//! Edit plugin implementation for CoderLib
//!
//! This module provides the plugin interface for integrating CoderLib with
//! the Microsoft Edit console editor.

use async_trait::async_trait;
use std::sync::Arc;

use crate::core::{CoderLib, CoderLibConfig, CodeRequest};
use crate::lsp::{Position, Range};
use crate::core::error::IntegrationError;
use crate::integration::{
    HostIntegration, CoderEvent, MessageLevel, HostInfo, HostCapabilities,
    Plugin, PluginContext, HostEvent, HostCommand,
};
use crate::tools::Permission;

/// CoderLib plugin for Microsoft Edit
pub struct CoderLibPlugin {
    coder_lib: Option<CoderLib>,
    config: CoderLibConfig,
    host_integration: Option<Arc<EditHostIntegration>>,
    active_session: Option<String>,
}

impl CoderLibPlugin {
    /// Create a new CoderLib plugin
    pub fn new(config: CoderLibConfig) -> Self {
        Self {
            coder_lib: None,
            config,
            host_integration: None,
            active_session: None,
        }
    }
    
    /// Process an AI request
    pub async fn process_ai_request(&mut self, prompt: String) -> Result<(), IntegrationError> {
        let coder_lib = self.coder_lib.as_ref()
            .ok_or_else(|| IntegrationError::NotAvailable)?;
        
        // Get or create session
        let session_id = if let Some(session_id) = &self.active_session {
            session_id.clone()
        } else {
            let session_id = coder_lib.create_session(Some("Edit Session".to_string())).await
                .map_err(|e| IntegrationError::Communication(e.to_string()))?;
            self.active_session = Some(session_id.clone());
            session_id
        };
        
        // Build request context
        let context = if let Some(host) = &self.host_integration {
            crate::core::RequestContext {
                current_file: host.get_active_file().await.ok().flatten(),
                cursor_position: host.get_cursor_position().await.ok(),
                selection: host.get_selection().await.ok().flatten(),
                project_root: host.get_project_root().await.ok().flatten(),
                open_files: host.get_open_files().await.unwrap_or_default(),
            }
        } else {
            crate::core::RequestContext::default()
        };
        
        let request = CodeRequest {
            session_id,
            content: prompt,
            attachments: Vec::new(),
            model: None,
            context,
        };
        
        // Process the request
        let mut response_stream = coder_lib.process_request(request).await
            .map_err(|e| IntegrationError::Communication(e.to_string()))?;
        
        // Handle streaming response
        tokio::spawn(async move {
            while let Ok(response) = response_stream.recv().await {
                // Handle response chunks
                if !response.content.is_empty() {
                    // TODO: Send to Edit UI
                }
                
                if response.is_complete {
                    break;
                }
            }
        });
        
        Ok(())
    }
}

impl Plugin for CoderLibPlugin {
    fn name(&self) -> &str {
        "CoderLib AI Assistant"
    }
    
    fn version(&self) -> &str {
        env!("CARGO_PKG_VERSION")
    }
    
    fn initialize(&mut self, context: PluginContext) -> Result<(), IntegrationError> {
        // Initialize CoderLib
        let mut coder_lib = tokio::runtime::Handle::current().block_on(async {
            CoderLib::new(self.config.clone()).await
        }).map_err(|e| IntegrationError::Communication(e.to_string()))?;
        
        // Create host integration
        let host_integration = Arc::new(EditHostIntegration::new(context.host_info));
        coder_lib.set_host_integration(host_integration.clone());
        
        self.coder_lib = Some(coder_lib);
        self.host_integration = Some(host_integration);
        
        Ok(())
    }
    
    fn handle_event(&mut self, event: HostEvent) -> Result<Option<HostCommand>, IntegrationError> {
        match event {
            HostEvent::KeyPressed(key) if key == "Ctrl+I" => {
                // AI assistant hotkey
                Ok(Some(HostCommand::ShowDialog {
                    title: "AI Assistant".to_string(),
                    message: "Enter your request:".to_string(),
                    buttons: vec!["Send".to_string(), "Cancel".to_string()],
                }))
            }
            HostEvent::FileOpened(_path) => {
                // File opened, could update context
                Ok(None)
            }
            HostEvent::CursorMoved(_) | HostEvent::SelectionChanged(_) => {
                // Context changed, could update AI context
                Ok(None)
            }
            _ => Ok(None),
        }
    }
    
    fn shutdown(&mut self) -> Result<(), IntegrationError> {
        self.coder_lib = None;
        self.host_integration = None;
        self.active_session = None;
        Ok(())
    }
}

/// Host integration implementation for Microsoft Edit
pub struct EditHostIntegration {
    host_info: HostInfo,
}

impl EditHostIntegration {
    pub fn new(host_info: HostInfo) -> Self {
        Self { host_info }
    }
}

#[async_trait]
impl HostIntegration for EditHostIntegration {
    async fn on_event(&self, _event: CoderEvent) -> Result<(), IntegrationError> {
        // Handle events from CoderLib
        // TODO: Implement event handling
        Ok(())
    }
    
    async fn request_permission(&self, _permission: Permission) -> Result<bool, IntegrationError> {
        // For now, allow all permissions
        // TODO: Implement proper permission dialog
        Ok(true)
    }
    
    async fn get_file_content(&self, path: &std::path::Path) -> Result<String, IntegrationError> {
        tokio::fs::read_to_string(path).await
            .map_err(|e| IntegrationError::Communication(e.to_string()))
    }
    
    async fn update_file_content(&self, path: &std::path::Path, content: &str) -> Result<(), IntegrationError> {
        tokio::fs::write(path, content).await
            .map_err(|e| IntegrationError::Communication(e.to_string()))
    }
    
    async fn get_cursor_position(&self) -> Result<Position, IntegrationError> {
        // TODO: Get actual cursor position from Edit
        Ok(Position { line: 0, character: 0 })
    }
    
    async fn set_cursor_position(&self, _position: Position) -> Result<(), IntegrationError> {
        // TODO: Set cursor position in Edit
        Ok(())
    }
    
    async fn get_selection(&self) -> Result<Option<Range>, IntegrationError> {
        // TODO: Get actual selection from Edit
        Ok(None)
    }
    
    async fn set_selection(&self, _range: Range) -> Result<(), IntegrationError> {
        // TODO: Set selection in Edit
        Ok(())
    }
    
    async fn insert_text(&self, _text: &str) -> Result<(), IntegrationError> {
        // TODO: Insert text in Edit
        Ok(())
    }
    
    async fn replace_text(&self, _range: Range, _text: &str) -> Result<(), IntegrationError> {
        // TODO: Replace text in Edit
        Ok(())
    }
    
    async fn get_active_file(&self) -> Result<Option<std::path::PathBuf>, IntegrationError> {
        // TODO: Get active file from Edit
        Ok(None)
    }
    
    async fn get_open_files(&self) -> Result<Vec<std::path::PathBuf>, IntegrationError> {
        // TODO: Get open files from Edit
        Ok(Vec::new())
    }
    
    async fn get_project_root(&self) -> Result<Option<std::path::PathBuf>, IntegrationError> {
        // TODO: Get project root from Edit
        Ok(None)
    }
    
    async fn show_message(&self, _message: &str, _level: MessageLevel) -> Result<(), IntegrationError> {
        // TODO: Show message in Edit
        Ok(())
    }
    
    async fn show_notification(&self, _title: &str, _message: &str) -> Result<(), IntegrationError> {
        // TODO: Show notification in Edit
        Ok(())
    }
    
    async fn request_input(&self, _prompt: &str, _default: Option<&str>) -> Result<Option<String>, IntegrationError> {
        // TODO: Request input from user in Edit
        Ok(None)
    }
    
    async fn confirm(&self, _message: &str) -> Result<bool, IntegrationError> {
        // TODO: Show confirmation dialog in Edit
        Ok(true)
    }
    
    async fn execute_command(&self, _command: &str, _args: &[&str]) -> Result<String, IntegrationError> {
        // TODO: Execute command in Edit
        Ok(String::new())
    }
    
    fn get_host_info(&self) -> HostInfo {
        self.host_info.clone()
    }
}

/// Create a default host info for Microsoft Edit
pub fn create_edit_host_info() -> HostInfo {
    HostInfo {
        name: "Microsoft Edit".to_string(),
        version: "1.0.0".to_string(),
        capabilities: HostCapabilities {
            file_modification: true,
            ui_dialogs: true,
            command_execution: false,
            notifications: true,
            project_access: true,
            cursor_control: true,
            syntax_highlighting: true,
            multi_file: true,
        },
        metadata: serde_json::json!({
            "editor_type": "console",
            "platform": std::env::consts::OS,
        }),
    }
}