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53 lines
1.7 KiB
Rust
53 lines
1.7 KiB
Rust
use regex::Regex;
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use serenity::client::Context;
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use serenity::framework::standard::macros::command;
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use serenity::framework::standard::{Args, CommandResult};
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use serenity::model::channel::Message;
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use crate::providers::qalc;
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static QALC_HELP: &[&str] = &["help", "--help", "-h", "h"];
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#[command]
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#[description("Calculates an expression")]
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#[min_args(1)]
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#[usage("<expression>")]
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#[example("1 * 1 + 1 / sqrt(2)")]
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#[aliases("calc", "calculate", "qalculate")]
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#[bucket("general")]
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async fn qalc(ctx: &Context, msg: &Message, args: Args) -> CommandResult {
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let expression = args.message();
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lazy_static::lazy_static! {
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static ref ERROR_REGEX: Regex = Regex::new(r"^error:.*").unwrap();
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}
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if QALC_HELP.contains(&expression) {
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msg.channel_id.send_message(ctx, |f| {
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f.embed(|e| e.title("Help").description("Read the [Qalculate! Manual](https://qalculate.github.io/manual/index.html)"))
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}).await?;
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} else {
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let result = qalc::qalc(expression).await?;
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let mut description = format!("`{}`", result);
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if ERROR_REGEX.is_match(&result) {
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description +=
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"\nRead the [Qalculate! Manual](https://qalculate.github.io/manual/index.html)";
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}
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if &result == "aborted\n" {
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description =
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"Calculation aborted after timeout. Try a less complex calculation.".to_string();
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}
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msg.channel_id
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.send_message(ctx, |f| {
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f.embed(|e| {
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e.description(description)
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.footer(|f| f.text("Powered by qalculate!"))
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})
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})
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.await?;
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}
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Ok(())
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}
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