Grove/API/

vscode.rs

//! VS Code API Facade Module
//!
//! Provides the VS Code API facade for Grove extensions.
//! This implements the interface described in vscode.d.ts for extension
//! compatibility.

use std::sync::Arc;

use serde::{Deserialize, Serialize};

use crate::API::types::*;

/// VS Code API facade - the main entry point for extensions
#[derive(Debug, Clone)]
pub struct VSCodeAPI {
	/// Commands namespace
	pub commands:Arc<CommandNamespace>,
	/// Window namespace
	pub window:Arc<Window>,
	/// Workspace namespace
	pub workspace:Arc<Workspace>,
	/// Languages namespace
	pub languages:Arc<LanguageNamespace>,
	/// Extensions namespace
	pub extensions:Arc<ExtensionNamespace>,
	/// Environment namespace
	pub env:Arc<Env>,
}

impl VSCodeAPI {
	/// Create a new VS Code API facade
	pub fn new() -> Self {
		Self {
			commands:Arc::new(CommandNamespace::new()),
			window:Arc::new(Window::new()),
			workspace:Arc::new(Workspace::new()),
			languages:Arc::new(LanguageNamespace::new()),
			extensions:Arc::new(ExtensionNamespace::new()),
			env:Arc::new(Env::new()),
		}
	}
}

impl Default for VSCodeAPI {
	fn default() -> Self { Self::new() }
}

/// Commands namespace
#[derive(Debug, Clone)]
pub struct CommandNamespace;

impl CommandNamespace {
	/// Create a new CommandNamespace instance
	pub fn new() -> Self { Self }

	/// Register a command
	pub fn register_command(&self, command_id:String, _callback:CommandCallback) -> Result<Command, String> {
		Ok(Command { id:command_id.clone() })
	}

	/// Execute a command
	pub async fn execute_command<T:serde::de::DeserializeOwned>(
		&self,
		command_id:String,
		_args:Vec<serde_json::Value>,
	) -> Result<T, String> {
		// Placeholder implementation
		Err(format!("Command not implemented: {}", command_id))
	}
}

/// Command callback type
pub type CommandCallback = Box<dyn Fn(Vec<serde_json::Value>) -> Result<serde_json::Value, String> + Send + Sync>;

/// Command representation
#[derive(Debug, Clone)]
pub struct Command {
	/// The unique identifier of the command
	pub id:String,
}

/// Window namespace
#[derive(Debug, Clone)]
pub struct Window;

impl Window {
	/// Create a new Window instance
	pub fn new() -> Self { Self }

	/// Show an information message
	pub async fn show_information_message(&self, _message:String) -> Result<String, String> {
		// Placeholder implementation
		Ok("OK".to_string())
	}

	/// Show a warning message
	pub async fn show_warning_message(&self, _message:String) -> Result<String, String> {
		// Placeholder implementation
		Ok("OK".to_string())
	}

	/// Show an error message
	pub async fn show_error_message(&self, _message:String) -> Result<String, String> {
		// Placeholder implementation
		Ok("OK".to_string())
	}

	/// Create and show a new output channel
	pub fn create_output_channel(&self, name:String) -> OutputChannel { OutputChannel::new(name) }
}

/// Output channel for logging
#[derive(Debug, Clone)]
pub struct OutputChannel {
	/// The name of the output channel
	name:String,
}

impl OutputChannel {
	/// Create a new output channel
	///
	/// # Arguments
	///
	/// * `name` - The name of the output channel
	pub fn new(name:String) -> Self { Self { name } }

	/// Append a line to the channel
	pub fn append_line(&self, line:&str) {
		tracing::info!("[{}] {}", self.name, line);
	}

	/// Append to the channel
	pub fn append(&self, value:&str) {
		tracing::info!("[{}] {}", self.name, value);
	}

	/// Show the output channel
	pub fn show(&self) {
		// Placeholder - in real implementation, would show the channel
	}

	/// Hide the output channel
	pub fn hide(&self) {
		// Placeholder - in real implementation, would hide the channel
	}

	/// Dispose the output channel
	pub fn dispose(&self) {
		// Placeholder - in real implementation, would dispose resources
	}
}

/// Workspace namespace
#[derive(Debug, Clone)]
pub struct Workspace;

impl Workspace {
	/// Create a new Workspace instance
	pub fn new() -> Self { Self }

	/// Get workspace folders
	pub fn workspace_folders(&self) -> Vec<WorkspaceFolder> {
		// Placeholder implementation
		Vec::new()
	}

	/// Get workspace configuration
	pub fn get_configuration(&self, section:Option<String>) -> WorkspaceConfiguration {
		WorkspaceConfiguration::new(section)
	}
}

/// Workspace folder
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct WorkspaceFolder {
	/// The uri of the workspace folder
	pub uri:String,

	/// The name of the workspace folder
	pub name:String,

	/// The ordinal number of the workspace folder
	pub index:u32,
}

/// Workspace configuration
#[derive(Debug, Clone)]
pub struct WorkspaceConfiguration {
	/// The configuration section name
	#[allow(dead_code)]
	section:Option<String>,
}

impl WorkspaceConfiguration {
	/// Create a new workspace configuration
	///
	/// # Arguments
	///
	/// * `section` - Optional section name to retrieve
	pub fn new(section:Option<String>) -> Self { Self { section } }

	/// Get a configuration value
	pub fn get<T:serde::de::DeserializeOwned>(&self, _key:String) -> Result<T, String> {
		// Placeholder implementation
		Err("Configuration not implemented".to_string())
	}

	/// Check if a key exists in the configuration
	pub fn has(&self, _key:String) -> bool { false }

	/// Update a configuration value
	pub async fn update(&self, _key:String, _value:serde_json::Value) -> Result<(), String> {
		// Placeholder implementation
		Err("Update configuration not implemented".to_string())
	}
}

/// Languages namespace - mirrors the full vscode.languages API surface.
/// Each register*Provider method returns a Disposable and communicates
/// with Mountain via the transport layer (gRPC/IPC/WASM).
#[derive(Debug, Clone)]
pub struct LanguageNamespace;

impl LanguageNamespace {
	/// Create a new LanguageNamespace instance
	pub fn new() -> Self { Self }

	/// Register completion item provider
	pub async fn register_completion_item_provider<T:CompletionItemProvider>(
		&self,
		_selector:DocumentSelector,
		_provider:T,
		_trigger_characters:Option<Vec<String>>,
	) -> Result<Disposable, String> {
		Ok(Disposable::new())
	}

	/// Register hover provider
	pub fn register_hover_provider(&self, _selector:DocumentSelector) -> Disposable { Disposable::new() }

	/// Register definition provider
	pub fn register_definition_provider(&self, _selector:DocumentSelector) -> Disposable { Disposable::new() }

	/// Register reference provider
	pub fn register_reference_provider(&self, _selector:DocumentSelector) -> Disposable { Disposable::new() }

	/// Register code actions provider
	pub fn register_code_actions_provider(&self, _selector:DocumentSelector) -> Disposable { Disposable::new() }

	/// Register document highlight provider
	pub fn register_document_highlight_provider(&self, _selector:DocumentSelector) -> Disposable { Disposable::new() }

	/// Register document symbol provider
	pub fn register_document_symbol_provider(&self, _selector:DocumentSelector) -> Disposable { Disposable::new() }

	/// Register workspace symbol provider
	pub fn register_workspace_symbol_provider(&self) -> Disposable { Disposable::new() }

	/// Register rename provider
	pub fn register_rename_provider(&self, _selector:DocumentSelector) -> Disposable { Disposable::new() }

	/// Register document formatting provider
	pub fn register_document_formatting_edit_provider(&self, _selector:DocumentSelector) -> Disposable { Disposable::new() }

	/// Register document range formatting provider
	pub fn register_document_range_formatting_edit_provider(&self, _selector:DocumentSelector) -> Disposable { Disposable::new() }

	/// Register on-type formatting provider
	pub fn register_on_type_formatting_edit_provider(&self, _selector:DocumentSelector, _trigger_characters:Vec<String>) -> Disposable { Disposable::new() }

	/// Register signature help provider
	pub fn register_signature_help_provider(&self, _selector:DocumentSelector) -> Disposable { Disposable::new() }

	/// Register code lens provider
	pub fn register_code_lens_provider(&self, _selector:DocumentSelector) -> Disposable { Disposable::new() }

	/// Register folding range provider
	pub fn register_folding_range_provider(&self, _selector:DocumentSelector) -> Disposable { Disposable::new() }

	/// Register selection range provider
	pub fn register_selection_range_provider(&self, _selector:DocumentSelector) -> Disposable { Disposable::new() }

	/// Register semantic tokens provider
	pub fn register_document_semantic_tokens_provider(&self, _selector:DocumentSelector) -> Disposable { Disposable::new() }

	/// Register inlay hints provider
	pub fn register_inlay_hints_provider(&self, _selector:DocumentSelector) -> Disposable { Disposable::new() }

	/// Register type hierarchy provider
	pub fn register_type_hierarchy_provider(&self, _selector:DocumentSelector) -> Disposable { Disposable::new() }

	/// Register call hierarchy provider
	pub fn register_call_hierarchy_provider(&self, _selector:DocumentSelector) -> Disposable { Disposable::new() }

	/// Register linked editing range provider
	pub fn register_linked_editing_range_provider(&self, _selector:DocumentSelector) -> Disposable { Disposable::new() }

	/// Register declaration provider
	pub fn register_declaration_provider(&self, _selector:DocumentSelector) -> Disposable { Disposable::new() }

	/// Register implementation provider
	pub fn register_implementation_provider(&self, _selector:DocumentSelector) -> Disposable { Disposable::new() }

	/// Register type definition provider
	pub fn register_type_definition_provider(&self, _selector:DocumentSelector) -> Disposable { Disposable::new() }

	/// Register diagnostic collection
	pub fn create_diagnostic_collection(&self, name:Option<String>) -> DiagnosticCollection {
		DiagnosticCollection::new(name)
	}

	/// Set language configuration
	pub fn set_language_configuration(&self, _language:String) -> Disposable { Disposable::new() }
}

/// Document selector
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct DocumentFilter {
	/// A language id, like `typescript`
	pub language:Option<String>,

	/// A Uri scheme, like `file` or `untitled`
	pub scheme:Option<String>,

	/// A glob pattern, like `*.{ts,js}`
	pub pattern:Option<String>,
}

/// Document selector type
pub type DocumentSelector = Vec<DocumentFilter>;

/// Completion item provider
pub trait CompletionItemProvider: Send + Sync {
	/// Provide completion items at the given position
	///
	/// # Arguments
	///
	/// * `document` - The text document identifier
	/// * `position` - The position in the document
	/// * `context` - The completion context
	/// * `token` - Optional cancellation token
	///
	/// # Returns
	///
	/// A vector of completion items
	fn provide_completion_items(
		&self,
		document:TextDocumentIdentifier,
		position:Position,
		context:CompletionContext,
		token:Option<String>,
	) -> Vec<CompletionItem>;
}

/// Completion context
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CompletionContext {
	/// How the completion was triggered
	#[serde(rename = "triggerKind")]
	pub trigger_kind:CompletionTriggerKind,

	/// The character that triggered the completion
	#[serde(rename = "triggerCharacter")]
	pub trigger_character:Option<String>,
}

/// Completion trigger kind
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Serialize, Deserialize)]
pub enum CompletionTriggerKind {
	/// Completion was triggered by typing an identifier
	#[serde(rename = "Invoke")]
	Invoke = 0,

	/// Completion was triggered by a trigger character
	#[serde(rename = "TriggerCharacter")]
	TriggerCharacter = 1,

	/// Completion was re-triggered
	#[serde(rename = "TriggerForIncompleteCompletions")]
	TriggerForIncompleteCompletions = 2,
}

/// Diagnostic collection
#[derive(Debug, Clone)]
pub struct DiagnosticCollection {
	/// The name of the diagnostic collection
	#[allow(dead_code)]
	name:Option<String>,
}

impl DiagnosticCollection {
	/// Create a new diagnostic collection
	///
	/// # Arguments
	///
	/// * `name` - Optional name for the collection
	pub fn new(name:Option<String>) -> Self { Self { name } }

	/// Set diagnostics for a resource
	pub fn set(&self, _uri:String, _diagnostics:Vec<Diagnostic>) {
		// Placeholder implementation
	}

	/// Delete diagnostics for a resource
	pub fn delete(&self, _uri:String) {
		// Placeholder implementation
	}

	/// Clear all diagnostics
	pub fn clear(&self) {
		// Placeholder implementation
	}

	/// Dispose the collection
	pub fn dispose(&self) {
		// Placeholder implementation
	}
}

/// Disposable item
#[derive(Debug, Clone)]
pub struct Disposable;

impl Disposable {
	/// Create a new disposable item
	pub fn new() -> Self { Self }

	/// Dispose the resource
	pub fn dispose(&self) {
		// Placeholder implementation
	}
}

/// Extensions namespace
#[derive(Debug, Clone)]
pub struct ExtensionNamespace;

impl ExtensionNamespace {
	/// Create a new ExtensionNamespace instance
	pub fn new() -> Self { Self }

	/// Get all extensions
	pub fn all(&self) -> Vec<Extension> { Vec::new() }

	/// Get an extension by id
	pub fn get_extension(&self, _extension_id:String) -> Option<Extension> { None }
}

/// Extension representation
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct Extension {
	/// The canonical extension identifier in the form of `publisher.name`
	pub id:String,

	/// The absolute file path of the directory containing the extension
	#[serde(rename = "extensionPath")]
	pub extension_path:String,

	/// `true` if the extension is enabled
	pub is_active:bool,

	/// The package.json object of the extension
	#[serde(rename = "packageJSON")]
	pub package_json:serde_json::Value,
}

/// Environment namespace
#[derive(Debug, Clone)]
pub struct Env;

impl Env {
	/// Create a new Env instance
	pub fn new() -> Self { Self }

	/// Get environment variable
	pub fn get_env_var(&self, name:String) -> Option<String> { std::env::var(name).ok() }

	/// Check if running on a specific platform
	pub fn is_windows(&self) -> bool { cfg!(windows) }

	/// Check if running on macOS
	pub fn is_mac(&self) -> bool { cfg!(target_os = "macos") }

	/// Check if running on Linux
	pub fn is_linux(&self) -> bool { cfg!(target_os = "linux") }

	/// Get the app name
	pub fn app_name(&self) -> String { "VS Code".to_string() }

	/// Get the app root
	pub fn app_root(&self) -> Option<String> { std::env::var("VSCODE_APP_ROOT").ok() }
}

#[cfg(test)]
mod tests {
	use super::*;

	#[test]
	fn test_vscode_api_creation() {
		let _api = VSCodeAPI::new();
		// Arc fields are always initialized, so just verify creation works
	}

	#[test]
	fn test_position_operations() {
		let pos = Position::new(5, 10);
		assert_eq!(pos.line, 5);
		assert_eq!(pos.character, 10);
	}

	#[test]
	fn test_output_channel() {
		let channel = OutputChannel::new("test".to_string());
		channel.append_line("test message");
	}

	#[test]
	fn test_disposable() {
		let disposable = Disposable::new();
		disposable.dispose();
	}
}