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numbat.rs
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numbat.rs
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/*
*
* This source file is part of the Loungy open source project
*
* Copyright (c) 2024 Loungy, Matthias Grandl and the Loungy project contributors
* Licensed under MIT License
*
* See https://github.com/MatthiasGrandl/Loungy/blob/main/LICENSE.md for license information
*
*/
use gpui::*;
use numbat::{
markup::{Formatter, PlainTextFormatter},
module_importer::BuiltinModuleImporter,
pretty_print::PrettyPrint,
Context,
};
use crate::{
components::{list::ItemComponent, shared::Icon},
query::{TextEvent, TextInputWeak},
theme::Theme,
};
#[derive(Clone)]
pub struct NumbatResult {
equation: String,
pub result: String,
unit: String,
type_id: String,
}
#[derive(Clone)]
pub struct Numbat {
pub result: Option<NumbatResult>,
}
fn rephraser(s: &str) -> String {
let mut s = s.to_string();
if s.contains(" and ") {
s = s.replace(" and ", " + ");
}
if s.contains(" from now") {
s = format!("now() + {}", s.replace(" from now", ""));
}
s
}
impl Numbat {
pub fn init(query: &TextInputWeak, cx: &mut WindowContext) -> View<Numbat> {
let importer = BuiltinModuleImporter::default();
let mut ctx = Context::new(importer);
ctx.load_currency_module_on_demand(true);
Context::prefetch_exchange_rates();
let _ = ctx.interpret("use prelude", numbat::resolver::CodeSource::Text);
cx.new_view(move |cx| {
if let Some(query) = query.view.upgrade() {
cx.subscribe(&query, move |subscriber: &mut Numbat, _, event, cx| {
if let TextEvent::Input { text } = event {
let result =
ctx.interpret(&rephraser(text), numbat::resolver::CodeSource::Text);
let formatter = PlainTextFormatter {};
subscriber.result = match result {
Ok((statements, result)) => {
let s: Vec<String> = statements
.iter()
.map(|s| formatter.format(&s.pretty_print(), false))
.collect();
let s = s.join(" ");
let result = &result.to_markup(
statements.last(),
ctx.dimension_registry(),
true,
true,
);
let mut value: Option<String> = None;
let mut type_id: Option<String> = None;
let mut unit: Option<String> = None;
for part in &result.0 {
match part.1 {
numbat::markup::FormatType::String => {
value = Some(part.2.clone())
}
numbat::markup::FormatType::Value => {
value = Some(part.2.clone());
}
numbat::markup::FormatType::TypeIdentifier => {
type_id = Some(part.2.clone());
}
numbat::markup::FormatType::Unit => {
unit = Some(part.2.clone());
}
_ => {}
}
}
value.map(|value| NumbatResult {
result: value,
unit: unit.unwrap_or_default(),
type_id: type_id.unwrap_or_default(),
equation: s.replace('➞', "to"),
})
}
Err(_e) => None,
};
cx.notify();
}
})
.detach();
}
Numbat { result: None }
})
}
}
#[derive(Clone)]
pub struct NumbatWrapper {
pub inner: View<Numbat>,
}
impl ItemComponent for NumbatWrapper {
fn render(&self, _selected: bool, _cx: &WindowContext) -> AnyElement {
self.inner.clone().into_any_element()
}
}
impl Render for Numbat {
fn render(&mut self, cx: &mut gpui::ViewContext<Self>) -> impl IntoElement {
let theme = cx.global::<Theme>();
if self.result.is_none() {
return div();
}
let result = self.result.as_ref().unwrap().clone();
let len = result
.equation
.len()
.max(format!("{} {}", result.result, result.unit).len());
if len > 30 {
div().text_sm()
} else if len > 25 {
div()
} else if len > 20 {
div().text_lg()
} else {
div().text_xl()
}
.flex()
.font_weight(FontWeight::SEMIBOLD)
.relative()
.child(
div()
.w_1_2()
.h_24()
.flex()
.items_center()
.justify_center()
.child(result.equation),
)
.child(
div()
.w_1_2()
.h_24()
.flex()
.items_center()
.justify_center()
.child(format!("{} {}", result.result, result.unit)),
)
.child(
div()
.absolute()
.flex()
.items_center()
.justify_center()
.inset_0()
.child(
svg()
.path(Icon::MoveRight.path())
.size_12()
.text_color(theme.surface0),
),
)
}
}