first commit

This commit is contained in:
Vladimir Rubin 2025-02-11 00:48:38 +02:00
commit 484296a101
Signed by: vavakado
GPG key ID: CAB744727F36B524
8 changed files with 916 additions and 0 deletions

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.envrc Normal file
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use flake
dotenv_if_exists backend/.env

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/target
.direnv

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"locked": {
"lastModified": 1739154531,
"narHash": "sha256-QGeN6e0nMJlNLzm3Y2A7P6riXhQXMeCXLZ7yajZYFQM=",
"owner": "oxalica",
"repo": "rust-overlay",
"rev": "035dac86ab7ce5c1e8a4d59dfe85e6911a3526ea",
"type": "github"
},
"original": {
"owner": "oxalica",
"repo": "rust-overlay",
"type": "github"
}
},
"systems": {
"locked": {
"lastModified": 1681028828,
"narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
"owner": "nix-systems",
"repo": "default",
"rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
"type": "github"
},
"original": {
"owner": "nix-systems",
"repo": "default",
"type": "github"
}
}
},
"root": "root",
"version": 7
}

40
flake.nix Normal file
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@ -0,0 +1,40 @@
{
description = "DevShell for shanti";
inputs = {
nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
flake-utils.url = "github:numtide/flake-utils";
rust-overlay.url = "github:oxalica/rust-overlay";
};
outputs =
{
nixpkgs,
rust-overlay,
flake-utils,
...
}:
flake-utils.lib.eachDefaultSystem (
system:
let
overlays = [ (import rust-overlay) ];
pkgs = import nixpkgs {
inherit system overlays;
};
in
{
devShells.default =
with pkgs;
mkShell rec {
buildInputs = [
rust-bin.nightly.latest.default
sqlite.dev
sqlite
];
shellHook = ''
export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:${builtins.toString (pkgs.lib.makeLibraryPath buildInputs)}";
'';
};
}
);
}

2
rustfmt.toml Normal file
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imports_granularity = "Module"
group_imports = "StdExternalCrate"

208
src/main.rs Normal file
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use std::env;
use std::path::PathBuf;
use chrono::{DateTime, Duration, NaiveDateTime, Utc};
use clap::{Parser, Subcommand};
use rusqlite::{params, Connection};
#[derive(Parser)]
#[command(name = "whenst")]
#[command(about = "A simple event countdown CLI")]
struct Cli {
#[command(subcommand)]
command: Commands,
}
#[derive(Subcommand)]
enum Commands {
/// Add a new event
Add {
/// Name of the event
name: String,
/// The date of the event (YYYY-MM-DD HH:MM)
date: String,
},
/// List all upcoming events
List {
/// Show how much time is left until the next event
#[arg(short, long, default_value_t = false)]
time: bool,
},
/// Show the next upcoming event
Next {
/// Show id
#[arg(short, long, default_value_t = false)]
id: bool,
/// Show how much time is left until the next event
#[arg(short, long, default_value_t = false)]
time: bool,
/// Show the event name
#[arg(short, long, default_value_t = false)]
name: bool,
},
/// Remove an event by ID
Remove {
/// The ID of the event to remove
id: i32,
},
}
fn init_db() -> rusqlite::Result<rusqlite::Connection> {
let conn = Connection::open(get_config_path())?;
conn.execute(
"CREATE TABLE IF NOT EXISTS events (
id INTEGER PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
timestamp INTEGER NOT NULL
)",
[],
)?;
Ok(conn)
}
fn parse_date(date_str: &str) -> Option<i64> {
NaiveDateTime::parse_from_str(date_str, "%Y-%m-%d %H:%M")
.ok()
.map(|dt| dt.and_utc().timestamp())
}
fn main() -> rusqlite::Result<()> {
let conn = init_db()?;
let cli = Cli::parse();
match cli.command {
Commands::Add { name, date } => {
let timestamp = match parse_date(&date) {
Some(timestamp) => timestamp,
None => {
eprintln!("Invalid date format");
return Err(rusqlite::Error::InvalidQuery);
}
};
conn.execute(
"INSERT INTO events (name, timestamp) VALUES (?1, ?2)",
params![name, timestamp],
)?;
println!("Added event: \"{}\" at {}", name, date);
}
Commands::List { time: show_time } => {
let mut stmt =
conn.prepare("SELECT id, name, timestamp FROM events ORDER BY timestamp ASC")?;
let events_iter = stmt.query_map([], |row| {
Ok((
row.get::<_, i32>(0)?,
row.get::<_, String>(1)?,
row.get::<_, i64>(2)?,
))
})?;
for event in events_iter {
let (id, name, timestamp) = event?;
let datetime = DateTime::from_timestamp(timestamp, 0).unwrap();
let mut total_string =
format!("[{}] {} - {}", id, name, datetime.format("%Y-%m-%d %H:%M"));
if show_time {
let remaining = format_time_left(timestamp);
total_string.push_str(&format!(" - {}", remaining));
}
println!("{}", total_string);
}
}
Commands::Next {
id: show_id,
time: show_time,
name: show_name,
} => {
let mut stmt = conn.prepare("SELECT id, name, timestamp FROM events WHERE timestamp > strftime('%s', 'now') ORDER BY timestamp ASC LIMIT 1")?;
let mut rows = stmt.query([])?;
if let Some(row) = rows.next()? {
let id: i32 = row.get(0)?;
let name: String = row.get(1)?;
let timestamp: i64 = row.get(2)?;
let datetime = DateTime::from_timestamp(timestamp, 0).unwrap();
let mut total_string = String::from("Next event: ");
if show_id {
total_string.push_str(&format!("[{}] ", id));
};
if show_name {
total_string.push_str(&format!("{} - ", name,));
}
if show_time {
let remaining = format_time_left(timestamp);
total_string.push_str(&remaining.to_string());
} else {
total_string.push_str(&format!("{}", datetime.format("%Y-%m-%d %H:%M")));
}
println!("{}", total_string);
} else {
println!("No upcoming events.");
}
}
Commands::Remove { id } => {
let deleted = conn.execute("DELETE FROM events WHERE id = ?1", params![id])?;
if deleted > 0 {
println!("Removed event with ID {}", id);
} else {
println!("No event found with ID {}", id);
}
}
}
Ok(())
}
#[inline]
fn get_config_path() -> PathBuf {
if cfg!(target_os = "windows") {
let username = env::var("USERNAME").unwrap_or_else(|_| "Default".to_string());
PathBuf::from(format!(
"C:\\Users\\{}\\AppData\\Local\\whenst.db",
username
))
} else {
let xdg_config_home = env::var("XDG_CONFIG_HOME").ok();
let home = env::var("HOME").ok();
let user = env::var("USER").unwrap_or_else(|_| "default".to_string());
xdg_config_home
.map(|x| PathBuf::from(format!("{}/whenst.db", x)))
.or_else(|| home.map(|h| PathBuf::from(format!("{}/.config/whenst.db", h))))
.unwrap_or_else(|| PathBuf::from(format!("/home/{}/.config/whenst.db", user)))
}
}
fn format_time_left(event_time: i64) -> String {
let now = Utc::now().timestamp();
let duration = event_time - now;
if duration <= 0 {
return "Event started!".to_string();
}
let duration = Duration::seconds(duration);
let days = duration.num_days();
let hours = duration.num_hours() % 24;
let minutes = duration.num_minutes() % 60;
if days > 0 {
format!("{}d {}h left", days, hours)
} else if hours > 0 {
format!("{}h {}m left", hours, minutes)
} else {
format!("{}m left", minutes)
}
}