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//! Vector database commands
use crate::cli::VectorCommands;
use crate::data::vector_db::VectorDatabase;
use anyhow::Result;
use colored::*;
/// Handle vector database commands
pub async fn handle(command: VectorCommands) -> Result<()> {
match command {
VectorCommands::List => {
let databases = VectorDatabase::list_databases()?;
if databases.is_empty() {
println!("No vector databases found.");
println!(
"Create one by running: {}",
"lc embed -d <name> -m <model> \"your text\"".dimmed()
);
} else {
println!("\n{} Vector databases:", "📊".bold().blue());
for db_name in databases {
match VectorDatabase::new(&db_name) {
Ok(db) => {
let count = db.count().unwrap_or(0);
let model_info = db.get_model_info().unwrap_or(None);
print!(" {} {} ({} vectors)", "•".blue(), db_name.bold(), count);
if let Some((model, provider)) = model_info {
print!(" - {}:{}", provider.dimmed(), model.dimmed());
}
println!();
}
Err(_) => {
println!(" {} {} (error reading)", "•".red(), db_name.bold());
}
}
}
}
}
VectorCommands::Create { name } => {
// Check if database already exists
let databases = VectorDatabase::list_databases()?;
if databases.contains(&name) {
anyhow::bail!("Vector database '{}' already exists", name);
}
// Create empty database
let _ = VectorDatabase::new(&name)?;
println!(
"{} Vector database '{}' created successfully",
"✓".green(),
name
);
println!(
"Use {} to add embeddings",
format!("lc embed -d {} <text>", name).dimmed()
);
}
VectorCommands::Delete { name, yes } => {
// Check if database exists
let databases = VectorDatabase::list_databases()?;
if !databases.contains(&name) {
anyhow::bail!("Vector database '{}' not found", name);
}
// Ask for confirmation unless --yes is provided
if !yes {
println!(
"{} Are you sure you want to delete database '{}'? This cannot be undone.",
"⚠️".yellow(),
name.bold()
);
print!("Type 'yes' to confirm: ");
use std::io::{self, Write};
io::stdout().flush()?;
let mut input = String::new();
io::stdin().read_line(&mut input)?;
if input.trim().to_lowercase() != "yes" {
println!("Deletion cancelled.");
return Ok(());
}
}
VectorDatabase::delete_database(&name)?;
println!(
"{} Vector database '{}' deleted successfully",
"✓".green(),
name
);
}
VectorCommands::Info { name } => {
// Check if database exists
let databases = VectorDatabase::list_databases()?;
if !databases.contains(&name) {
anyhow::bail!("Vector database '{}' not found", name);
}
let db = VectorDatabase::new(&name)?;
let count = db.count()?;
let model_info = db.get_model_info()?;
println!("\n{} Database: {}", "ℹ️".bold().blue(), name.bold());
println!(" Vector count: {}", count);
if let Some((model, provider)) = model_info {
println!(" Model: {}", model);
println!(" Provider: {}", provider);
} else {
println!(" Model: {}", "Not set".dimmed());
println!(" Provider: {}", "Not set".dimmed());
}
// Show recent entries if any
if count > 0 {
println!("\n{} Recent entries:", "📝".bold().blue());
let vectors = db.get_all_vectors()?;
for (i, entry) in vectors.iter().take(10).enumerate() {
let preview = if entry.text.len() > 80 {
format!("{}...", &entry.text[..80])
} else {
entry.text.clone()
};
let source_info = if let Some(ref file_path) = entry.file_path {
if let (Some(chunk_idx), Some(total_chunks)) =
(entry.chunk_index, entry.total_chunks)
{
format!(" [{}:{}/{}]", file_path, chunk_idx + 1, total_chunks)
} else {
format!(" [{}]", file_path)
}
} else {
String::new()
};
println!(
" {}. {}{} ({})",
i + 1,
preview,
source_info.dimmed(),
entry
.created_at
.format("%Y-%m-%d %H:%M")
.to_string()
.dimmed()
);
}
if vectors.len() > 10 {
println!(" ... and {} more", vectors.len() - 10);
}
}
}
VectorCommands::Stats { name } => {
let databases = VectorDatabase::list_databases()?;
if !databases.contains(&name) {
anyhow::bail!("Vector database '{}' not found", name);
}
let db = VectorDatabase::new(&name)?;
let count = db.count()?;
let model_info = db.get_model_info()?;
println!("\n{} Vector database: {}", "📊".bold().blue(), name.bold());
println!("Vectors: {}", count);
if let Some((model, provider)) = model_info {
println!("Model: {}:{}", provider, model);
// Try to get dimensions from first vector
if count > 0 {
let vectors = db.get_all_vectors()?;
if let Some(first) = vectors.first() {
println!("Dimensions: {}", first.vector.len());
}
}
} else {
println!("Model: {}", "Not set".dimmed());
}
// Get database file size
let embeddings_dir = VectorDatabase::embeddings_dir()?;
let db_path = embeddings_dir.join(format!("{}.db", name));
if let Ok(metadata) = std::fs::metadata(&db_path) {
let size_mb = metadata.len() as f64 / (1024.0 * 1024.0);
println!("Size: {:.2} MB", size_mb);
}
if count > 0 {
println!("\n{} Recent entries:", "📝".bold().blue());
let vectors = db.get_all_vectors()?;
for (i, entry) in vectors.iter().take(5).enumerate() {
let preview = if entry.text.len() > 60 {
format!("{}...", &entry.text[..60])
} else {
entry.text.clone()
};
let source_info = if let Some(ref file_path) = entry.file_path {
if let (Some(chunk_idx), Some(total_chunks)) =
(entry.chunk_index, entry.total_chunks)
{
format!(" [{}:{}/{}]", file_path, chunk_idx + 1, total_chunks)
} else {
format!(" [{}]", file_path)
}
} else {
String::new()
};
println!(
" {}. {}{} ({})",
i + 1,
preview,
source_info.dimmed(),
entry
.created_at
.format("%Y-%m-%d %H:%M")
.to_string()
.dimmed()
);
}
if vectors.len() > 5 {
println!(" ... and {} more", vectors.len() - 5);
}
}
}
VectorCommands::Clear { name, yes } => {
// Check if database exists
let databases = VectorDatabase::list_databases()?;
if !databases.contains(&name) {
anyhow::bail!("Vector database '{}' not found", name);
}
let db = VectorDatabase::new(&name)?;
let count = db.count()?;
if count == 0 {
println!("Vector database '{}' is already empty.", name);
return Ok(());
}
// Ask for confirmation unless --yes is provided
if !yes {
println!(
"{} Are you sure you want to clear {} vectors from database '{}'? This cannot be undone.",
"⚠️".yellow(),
count,
name.bold()
);
print!("Type 'yes' to confirm: ");
use std::io::{self, Write};
io::stdout().flush()?;
let mut input = String::new();
io::stdin().read_line(&mut input)?;
if input.trim().to_lowercase() != "yes" {
println!("Clear operation cancelled.");
return Ok(());
}
}
// Delete and recreate the database to clear it
VectorDatabase::delete_database(&name)?;
let _ = VectorDatabase::new(&name)?;
println!(
"{} Vector database '{}' cleared successfully ({} vectors removed)",
"✓".green(),
name,
count
);
}
}
Ok(())
}