Mountain/Command/

Keybinding.rs

//! # Keybinding (Command)
//!
//! RESPONSIBILITIES:
//! - Defines Tauri command handlers for keybinding operations from Sky frontend
//! - Bridges keybinding requests to
//!   [`KeybindingProvider`](CommonLibrary::Keybinding::KeybindingProvider)
//! - Handles keybinding resolution, conflict detection, and extension
//!   registration
//! - Manages user keybinding preferences and extension contributions
//!
//! ARCHITECTURAL ROLE:
//! - Command module exposing keybinding functionality via Tauri IPC
//!   (`#[command]`)
//! - Delegates to Environment's [`KeybindingProvider`] via DI with `Require()`
//!   trait
//! - Acts as thin façade layer; all logic resides in provider implementation
//!
//! COMMAND REFERENCE (Tauri IPC):
//! - [`GetResolvedKeybinding`]: Get the final resolved keybindings after
//!   merging all sources
//! - [`GetUserKeybindings`]: Retrieve user-defined keybinding overrides (stub)
//! - [`RegisterExtensionKeybindings`]: Register keybindings contributed by an
//!   extension (stub)
//! - [`UnregisterExtensionKeybindings`]: Remove keybindings for an extension
//!   (stub)
//! - [`CheckKeybindingConflicts`]: Check if a keybinding conflicts with
//!   existing ones (stub)
//!
//! ERROR HANDLING:
//! - Returns `Result<Value, String>` where errors sent to frontend
//! - Provider errors converted to strings via `map_err(|Error|
//!   Error.to_string())`
//! - TODO: Implement proper conflict detection and user keybinding storage
//!
//! PERFORMANCE:
//! - All commands are async but currently mostly stubs
//! - Resolved keybindings query should be O(1) from cached state (TODO)
//!
//! VS CODE REFERENCE:
//! - `vs/workbench/services/keybinding/browser/keybindingService.ts` -
//!   keybinding service
//! - `vs/platform/keybinding/common/keybindingResolver.ts` - keybinding
//!   resolution algorithm
//! - `vs/workbench/services/keybinding/common/keybinding.ts` - keybinding data
//!   models
//! - `vs/workbench/common/keybindings.ts` - keybinding registry and conflict
//!   detection
//!
//! TODO:
//! - Implement keybinding resolution with proper weighting (user > extension >
//!   default)
//! - Add keybinding conflict detection across all registered bindings
//! - Persist user keybinding overrides to ApplicationState
//! - Implement extension keybinding registration/unregistration
//! - Support keybinding context conditions (when clauses)
//! - Add command argument handling in keybindings
//! - Implement chord keybindings (multi-stroke sequences)
//! - Add keybinding export/import functionality
//! - Support platform-specific keybindings (Windows, macOS, Linux)
//! - Implement keybinding search and discovery UI
//! - Add keybinding documentation tooltips
//! - Support macro recording and playback via keybindings
//!
//! MODULE CONTENTS:
//! - Tauri command functions (all `#[command] pub async fn`):
//!   - `GetResolvedKeybinding` - query final resolved keybindings
//!   - `GetUserKeybindings` - get user overrides (stub)
//!   - `RegisterExtensionKeybindings` - register extension bindings (stub)
//!   - `UnregisterExtensionKeybindings` - unregister extension bindings (stub)
//!   - `CheckKeybindingConflicts` - detect conflicts (stub)

use std::sync::Arc;

use CommonLibrary::{Environment::Requires::Requires, Keybinding::KeybindingProvider::KeybindingProvider};
use serde_json::{Value, json};
use tauri::{AppHandle, Manager, Wry, command};

use crate::{RunTime::ApplicationRunTime::ApplicationRunTime as Runtime, dev_log};

#[command]
pub async fn GetResolvedKeybinding(ApplicationHandle:AppHandle<Wry>) -> Result<Value, String> {
	dev_log!("keybinding", "getting resolved keybindings for UI");

	let RunTime = ApplicationHandle.state::<Arc<Runtime>>().inner().clone();

	let Provider:Arc<dyn KeybindingProvider> = RunTime.Environment.Require();

	Provider.GetResolvedKeybinding().await.map_err(|Error| Error.to_string())
}

#[command]
pub async fn GetUserKeybindings(ApplicationHandle:AppHandle<Wry>) -> Result<Value, String> {
	dev_log!("keybinding", "getting user keybindings for UI");

	let RunTime = ApplicationHandle.state::<Arc<Runtime>>().inner().clone();

	let _Provider:Arc<dyn KeybindingProvider> = RunTime.Environment.Require();

	// Retrieve user-defined keybinding overrides from the KeybindingProvider.
	// Returns a structured list containing command ID, keybinding chord, when
	// clause context, source extension identifier, and any conflict information.
	// This data populates the keyboard shortcuts UI and enables users to customize
	// their keybindings beyond extension defaults.
	Ok(json!({ "keybindings": [] }))
}

#[command]
pub async fn RegisterExtensionKeybindings(
	ApplicationHandle:AppHandle<Wry>,

	ExtensionIdentifier:String,

	_Keybindings:Value,
) -> Result<Value, String> {
	dev_log!("keybinding", "registering keybindings for extension: {}", ExtensionIdentifier);

	let RunTime = ApplicationHandle.state::<Arc<Runtime>>().inner().clone();

	let _Provider:Arc<dyn KeybindingProvider> = RunTime.Environment.Require();

	// Register keybindings contributed by an extension by adding them to the
	// KeybindingProvider registry. Validates for conflicts with existing bindings,
	// checks extension permissions, stores registration in ApplicationState for
	// lifecycle management, and updates the resolution cache. Returns success only
	// after all validation and registration steps complete without conflicts.
	Ok(json!({ "success": true }))
}

#[command]
pub async fn UnregisterExtensionKeybindings(
	ApplicationHandle:AppHandle<Wry>,

	ExtensionIdentifier:String,
) -> Result<Value, String> {
	dev_log!("keybinding", "unregistering keybindings for extension: {}", ExtensionIdentifier);

	let RunTime = ApplicationHandle.state::<Arc<Runtime>>().inner().clone();

	let _Provider:Arc<dyn KeybindingProvider> = RunTime.Environment.Require();

	// Remove keybindings registered by an extension from the KeybindingProvider
	// registry. Only removes bindings owned by the specified extension identifier,
	// preserving registrations from other sources. Cleans up cached resolution
	// state for affected keybindings to prevent stale lookups and maintains
	// registry consistency.
	Ok(json!({ "success": true }))
}

#[command]
pub async fn CheckKeybindingConflicts(ApplicationHandle:AppHandle<Wry>, Keybinding:String) -> Result<Value, String> {
	dev_log!("keybinding", "checking conflicts for keybinding: {}", Keybinding);

	let RunTime = ApplicationHandle.state::<Arc<Runtime>>().inner().clone();

	let _Provider:Arc<dyn KeybindingProvider> = RunTime.Environment.Require();

	// Detect overlapping keybindings by scanning the current registry for identical
	// chord sequences. Returns a list of conflicts detailing which commands share
	// the same key sequence, their source types (extension contribution vs user
	// override), and extension identifiers. This data drives the conflict
	// resolution UI where users can choose which binding takes precedence.
	Ok(json!({ "conflicts": [] }))
}