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Григорий Сафронов 2025-11-30 16:57:44 +00:00
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// src/lua_shell.rs
//! Интерактивная Lua оболочка для Futriix
//!
//! Предоставляет интерфейс для взаимодействия с базой данных через Lua
//! и CRUD команды. Использует wait-free доступ к данным через атомарные ссылки.
#![allow(dead_code)]
use std::sync::Arc;
use tokio::io::{AsyncBufReadExt, BufReader};
use serde_json::Value;
use crate::common::Result;
use crate::server::database::Database;
use crate::server::lua_engine::LuaEngine;
use crate::server::sharding::ShardingManager;
use crate::server::csv_import_export::CsvManager;
use crate::common::protocol;
use crate::server::database::{Index, IndexType};
/// Конвертация HEX цвета в ANSI escape code
fn hex_to_ansi(hex_color: &str) -> String {
let hex = hex_color.trim_start_matches('#');
if hex.len() == 6 {
if let (Ok(r), Ok(g), Ok(b)) = (
u8::from_str_radix(&hex[0..2], 16),
u8::from_str_radix(&hex[2..4], 16),
u8::from_str_radix(&hex[4..6], 16),
) {
return format!("\x1b[38;2;{};{};{}m", r, g, b);
}
}
"\x1b[38;2;255;255;255m".to_string()
}
/// Вывод текста с красным цветом для ошибок
fn print_error(text: &str) {
let red_color = hex_to_ansi("#FF0000");
println!("{}{}\x1b[0m", red_color, text);
}
/// Вывод текста с зеленым цветом для успеха
fn print_success(text: &str) {
let green_color = hex_to_ansi("#00FF00");
println!("{}{}\x1b[0m", green_color, text);
}
/// Вывод текста с синим цветом для информации
fn print_info(text: &str) {
let blue_color = hex_to_ansi("#00bfff");
println!("{}{}\x1b[0m", blue_color, text);
}
/// Вывод текста с цветом #33d17a для приглашения Lua
fn print_lua_color(text: &str) {
let lua_color = hex_to_ansi("#33d17a"); // Новый цвет #33d17a
println!("{}{}\x1b[0m", lua_color, text);
}
/// Интерактивная Lua оболочка
pub struct LuaShell {
lua_engine: LuaEngine,
database: Arc<Database>,
sharding_manager: Arc<ShardingManager>,
csv_manager: Arc<CsvManager>,
inbox_mode: bool,
}
impl LuaShell {
pub fn new(
lua_engine: LuaEngine,
database: Arc<Database>,
sharding_manager: Arc<ShardingManager>,
csv_manager: Arc<CsvManager>,
) -> Self {
Self {
lua_engine,
database,
sharding_manager,
csv_manager,
inbox_mode: false,
}
}
/// Запуск интерактивной оболочки
pub async fn run(&mut self) -> Result<()> {
let stdin = tokio::io::stdin();
let mut reader = BufReader::new(stdin).lines();
// Выводим приветственное сообщение при запуске Lua интерпретатора
print_lua_color("Lua interpreter started. Type 'inbox.start' for database commands or Lua code.");
println!();
loop {
if self.inbox_mode {
let inbox_prompt_color = hex_to_ansi("#00bfff");
print!("{}futriix:~>\x1b[0m ", inbox_prompt_color);
} else {
// ПРИГЛАШЕНИЕ LUA ТЕПЕРЬ ЦВЕТА #33d17a
let lua_color = hex_to_ansi("#33d17a");
print!("{}lua>\x1b[0m ", lua_color);
}
let _ = std::io::Write::flush(&mut std::io::stdout());
let line = match reader.next_line().await {
Ok(Some(line)) => line,
Ok(None) => break,
Err(e) => {
eprintln!("Read error: {}", e);
continue;
}
};
let input = line.trim();
match input {
"exit" | "quit" => break,
"inbox.start" => {
self.inbox_mode = true;
// ИЗМЕНЕНИЕ: убрана точка и изменен цвет на #33d17a
let lua_color = hex_to_ansi("#33d17a");
println!("{}Entering database mode\x1b[0m", lua_color);
continue;
}
"inbox.stop" if self.inbox_mode => {
self.inbox_mode = false;
print_success("Exiting database mode. Back to Lua interpreter.");
continue;
}
"help" if self.inbox_mode => {
self.show_help().await?;
continue;
}
_ => {}
}
if self.inbox_mode {
self.handle_inbox_command(input).await?;
} else {
self.handle_lua_command(input).await?;
}
}
print_info("Shutting down Futriix server...");
Ok(())
}
/// Обработка Lua команд
async fn handle_lua_command(&self, input: &str) -> Result<()> {
if input.is_empty() {
return Ok(());
}
match self.lua_engine.execute_script(input) {
Ok(_) => {}
Err(e) => {
let error_msg = e.to_string();
if error_msg.contains("Lua error: syntax error:") || error_msg.contains("Unknown command:") {
print_error(&error_msg);
} else {
eprintln!("Lua error: {}", e);
}
}
}
Ok(())
}
/// Обработка команд inbox (CRUD + новые команды)
async fn handle_inbox_command(&self, input: &str) -> Result<()> {
let parts: Vec<&str> = input.split_whitespace().collect();
if parts.is_empty() {
return Ok(());
}
match parts[0] {
// Базовые CRUD команды
"create" => self.handle_create(parts).await,
"read" => self.handle_read(parts).await,
"update" => self.handle_update(parts).await,
"delete" => self.handle_delete(parts).await,
"list" => self.handle_list(parts).await,
// Новые команды для управления кластером
"cluster.status" => self.handle_cluster_status(parts).await,
"add.node" => self.handle_add_node(parts).await,
"evict.node" => self.handle_evict_node(parts).await,
"list.raft.nodes" => self.handle_list_raft_nodes(parts).await,
"cluster.rebalance" => self.handle_cluster_rebalance(parts).await,
// Новые команды для CSV операций
"csv" => self.handle_csv(parts).await,
"help" => self.show_help().await,
_ => {
let error_msg = format!("Unknown command: {}. Type 'help' for available commands.", parts[0]);
print_error(&error_msg);
Ok(())
}
}
}
// Новые методы для управления кластером
async fn handle_cluster_status(&self, _parts: Vec<&str>) -> Result<()> {
match self.sharding_manager.get_cluster_status() {
Ok(status) => {
println!("Cluster Status:");
println!(" Formed: {}", status.cluster_formed);
println!(" Leader Exists: {}", status.leader_exists);
println!(" Total Capacity: {}", status.total_capacity);
println!(" Total Used: {}", status.total_used);
println!(" Nodes: {}", status.nodes.len());
for node in status.nodes {
println!(" - {}: {} ({}% used)", node.node_id, node.address, (node.used as f64 / node.capacity as f64) * 100.0);
}
println!(" Raft Nodes: {}", status.raft_nodes.len());
for raft_node in status.raft_nodes {
println!(" - {}: {} (term: {}, state: {})", raft_node.node_id, raft_node.address, raft_node.term, raft_node.state);
}
}
Err(e) => {
println!("Error getting cluster status: {}", e);
}
}
Ok(())
}
async fn handle_add_node(&self, parts: Vec<&str>) -> Result<()> {
if parts.len() < 2 {
println!("Usage: add.node <node_url> or add.node <node_ip>");
return Ok(());
}
let node_address = parts[1].to_string();
let node_id = format!("node_{}", uuid::Uuid::new_v4().to_string()[..8].to_string());
match self.sharding_manager.add_node(node_id.clone(), node_address.clone(), 1024 * 1024 * 1024) {
Ok(_) => {
println!("Node '{}' added to cluster at address '{}'", node_id, node_address);
}
Err(e) => {
println!("Error adding node: {}", e);
}
}
Ok(())
}
async fn handle_evict_node(&self, parts: Vec<&str>) -> Result<()> {
if parts.len() < 2 {
println!("Usage: evict.node <node_url> or evict.node <node_ip>");
return Ok(());
}
let node_address = parts[1].to_string();
// Находим node_id по адресу
let mut node_id_to_remove = None;
for entry in self.sharding_manager.get_nodes() {
if entry.address == node_address {
node_id_to_remove = Some(entry.node_id.clone());
break;
}
}
if let Some(node_id) = node_id_to_remove {
match self.sharding_manager.remove_node(&node_id) {
Ok(_) => {
println!("Node '{}' at address '{}' removed from cluster", node_id, node_address);
}
Err(e) => {
println!("Error removing node: {}", e);
}
}
} else {
println!("Node with address '{}' not found in cluster", node_address);
}
Ok(())
}
async fn handle_list_raft_nodes(&self, _parts: Vec<&str>) -> Result<()> {
let raft_nodes = self.sharding_manager.get_raft_nodes();
println!("Raft Nodes ({}):", raft_nodes.len());
for node in raft_nodes {
println!(" - {}: {} (term: {}, state: {:?}, last_heartbeat: {})",
node.node_id, node.address, node.term, node.state, node.last_heartbeat);
}
Ok(())
}
async fn handle_cluster_rebalance(&self, _parts: Vec<&str>) -> Result<()> {
match self.sharding_manager.rebalance_cluster() {
Ok(_) => {
println!("Cluster rebalancing completed successfully");
}
Err(e) => {
println!("Error rebalancing cluster: {}", e);
}
}
Ok(())
}
// Новый метод для CSV операций
async fn handle_csv(&self, parts: Vec<&str>) -> Result<()> {
if parts.len() < 2 {
println!("Usage: csv import <collection> <file_path>");
println!(" csv export <collection> <file_path>");
println!(" csv list");
println!(" csv progress <collection>");
return Ok(());
}
match parts[1] {
"import" => {
if parts.len() < 4 {
println!("Usage: csv import <collection> <file_path>");
return Ok(());
}
let collection = parts[2].to_string();
let file_path = parts[3].to_string();
match self.csv_manager.import_csv(&collection, &file_path) {
Ok(count) => {
println!("Successfully imported {} records from '{}'", count, file_path);
}
Err(e) => {
println!("Error importing CSV: {}", e);
}
}
}
"export" => {
if parts.len() < 4 {
println!("Usage: csv export <collection> <file_path>");
return Ok(());
}
let collection = parts[2].to_string();
let file_path = parts[3].to_string();
match self.csv_manager.export_csv(&collection, &file_path) {
Ok(count) => {
println!("Successfully exported {} records to '{}'", count, file_path);
}
Err(e) => {
println!("Error exporting CSV: {}", e);
}
}
}
"list" => {
match self.csv_manager.list_csv_files() {
Ok(files) => {
if files.is_empty() {
println!("No CSV files found");
} else {
println!("CSV files:");
for file in files {
println!(" - {}", file);
}
}
}
Err(e) => {
println!("Error listing CSV files: {}", e);
}
}
}
"progress" => {
if parts.len() < 3 {
println!("Usage: csv progress <collection>");
return Ok(());
}
let collection = parts[2].to_string();
let progress = self.csv_manager.get_import_progress(&collection);
println!("Import progress for '{}': {:.2}%", collection, progress);
}
_ => {
println!("Usage: csv import <collection> <file_path>");
println!(" csv export <collection> <file_path>");
println!(" csv list");
println!(" csv progress <collection>");
}
}
Ok(())
}
// Базовые методы CRUD (упрощенные)
async fn handle_create(&self, parts: Vec<&str>) -> Result<()> {
if parts.len() < 3 {
println!("Usage: create <collection> <json_data>");
return Ok(());
}
let collection = parts[1].to_string();
let document = parts[2..].join(" ").into_bytes();
let command = protocol::Command::Create {
collection,
document,
};
match self.database.execute_command(command) {
Ok(response) => {
if let protocol::Response::Success(data) = response {
if let Ok(id) = String::from_utf8(data) {
println!("Document created with ID: {}", id);
} else {
println!("Document created successfully");
}
} else if let protocol::Response::Error(e) = response {
println!("Error: {}", e);
}
}
Err(e) => {
println!("Error: {}", e);
}
}
Ok(())
}
async fn handle_read(&self, parts: Vec<&str>) -> Result<()> {
if parts.len() < 3 {
println!("Usage: read <collection> <id>");
return Ok(());
}
let collection = parts[1].to_string();
let id = parts[2].to_string();
let command = protocol::Command::Read {
collection,
id,
};
match self.database.execute_command(command) {
Ok(response) => {
if let protocol::Response::Success(data) = response {
if let Ok(document) = String::from_utf8(data) {
println!("{}", document);
} else {
println!("Document read successfully (binary data)");
}
} else if let protocol::Response::Error(e) = response {
println!("Error: {}", e);
}
}
Err(e) => {
println!("Error: {}", e);
}
}
Ok(())
}
async fn handle_update(&self, parts: Vec<&str>) -> Result<()> {
if parts.len() < 4 {
println!("Usage: update <collection> <id> <json_data>");
return Ok(());
}
let collection = parts[1].to_string();
let id = parts[2].to_string();
let document = parts[3..].join(" ").into_bytes();
let command = protocol::Command::Update {
collection,
id,
document,
};
match self.database.execute_command(command) {
Ok(response) => {
if let protocol::Response::Success(_) = response {
println!("Document updated successfully");
} else if let protocol::Response::Error(e) = response {
println!("Error: {}", e);
}
}
Err(e) => {
println!("Error: {}", e);
}
}
Ok(())
}
async fn handle_delete(&self, parts: Vec<&str>) -> Result<()> {
if parts.len() < 3 {
println!("Usage: delete <collection> <id>");
return Ok(());
}
let collection = parts[1].to_string();
let id = parts[2].to_string();
let command = protocol::Command::Delete {
collection,
id,
};
match self.database.execute_command(command) {
Ok(response) => {
if let protocol::Response::Success(_) = response {
println!("Document deleted successfully");
} else if let protocol::Response::Error(e) = response {
println!("Error: {}", e);
}
}
Err(e) => {
println!("Error: {}", e);
}
}
Ok(())
}
async fn handle_list(&self, parts: Vec<&str>) -> Result<()> {
if parts.len() < 2 {
println!("Usage: list <collection> [filter]");
return Ok(());
}
let collection = parts[1].to_string();
let filter = if parts.len() > 2 {
parts[2..].join(" ").into_bytes()
} else {
vec![]
};
let command = protocol::Command::Query {
collection,
filter,
};
match self.database.execute_command(command) {
Ok(response) => {
if let protocol::Response::Success(data) = response {
if let Ok(documents) = String::from_utf8(data) {
// Используем std::result::Result вместо нашего Result
let parsed: std::result::Result<Value, _> = serde_json::from_str(&documents);
match parsed {
Ok(value) => {
println!("{}", serde_json::to_string_pretty(&value).unwrap());
}
Err(_) => {
println!("{}", documents);
}
}
} else {
println!("Documents read successfully (binary data)");
}
} else if let protocol::Response::Error(e) = response {
println!("Error: {}", e);
}
}
Err(e) => {
println!("Error: {}", e);
}
}
Ok(())
}
/// Показать справку по командам
async fn show_help(&self) -> Result<()> {
println!("Available commands:");
println!(" Basic CRUD:");
println!(" create <collection> <json_data> - Create document");
println!(" read <collection> <id> - Read document");
println!(" update <collection> <id> <json> - Update document");
println!(" delete <collection> <id> - Delete document");
println!(" list <collection> [filter] - List documents");
println!(" Cluster Management:");
println!(" cluster.status - Show cluster status");
println!(" add.node <node_url> - Add node to cluster");
println!(" evict.node <node_url> - Remove node from cluster");
println!(" list.raft.nodes - List Raft nodes");
println!(" cluster.rebalance - Rebalance cluster (shards and nodes)");
println!(" CSV Operations:");
println!(" csv import <coll> <file> - Import CSV to collection");
println!(" csv export <coll> <file> - Export collection to CSV");
println!(" csv list - List CSV files");
println!(" csv progress <coll> - Show import progress");
println!(" Other:");
println!(" inbox.stop - Exit database mode");
println!(" help - Show this help");
Ok(())
}
}