aro/src/main.rs
2023-01-26 15:04:39 +01:00

273 lines
8.4 KiB
Rust

#![feature(option_result_contains)]
use nom::{
bytes::{complete::take_while_m_n, streaming::take_while},
combinator::{map_res, rest},
sequence::tuple,
IResult,
};
use serde::{de::Visitor, Deserialize, Deserializer};
use std::{
fmt::{self, Display},
str::FromStr,
};
fn main() -> Result<(), Box<dyn std::error::Error>> {
let cards = serde_json::from_reader::<_, CardInfo>(std::io::BufReader::new(std::fs::File::open("cards.json")?))?.data;
let query = std::env::args()
.skip(1)
.map(|q| {
query_arg(&q).map(|(_, r)| build_filter(r)).unwrap_or_else(|_| {
println!("Trying to match {} as card name", q);
let q = q.to_lowercase();
Box::new(move |card: &Card| card.name.to_lowercase().contains(&q))
})
})
.collect::<Vec<Box<dyn Fn(&Card) -> bool>>>();
cards.iter().filter(|card| query.iter().all(|q| q(card))).for_each(|c| println!("{c}"));
Ok(())
}
fn query_arg(input: &str) -> IResult<&str, (Field, Operator, Value)> {
tuple((field, operator, value))(input)
}
fn build_filter(query: (Field, Operator, Value)) -> Box<dyn Fn(&Card) -> bool> {
// dbg!("Building filter for {query:?}");
match query {
(Field::Atk, op, Value::Numerical(n)) => Box::new(move |card| op.filter_number(card.atk, n)),
(Field::Def, op, Value::Numerical(n)) => Box::new(move |card| op.filter_number(card.def, n)),
(Field::Level, op, Value::Numerical(n)) => Box::new(move |card| op.filter_number(card.level, n)),
(Field::Type, Operator::Equals, Value::String(s)) => Box::new(move |card| card.r#type.to_lowercase() == s.to_lowercase()),
(Field::Attribute, Operator::Equals, Value::String(s)) => {
Box::new(move |card| card.attribute.as_ref().map(|s| s.to_lowercase()).contains(&s.to_lowercase()))
}
(Field::Class, Operator::Equals, Value::String(s)) => {
let s = s.to_lowercase();
Box::new(move |card| card.card_type.iter().map(|t| t.to_lowercase()).any(|t| t == s))
}
q => {
println!("unknown query: {q:?}");
Box::new(|_| false)
}
}
}
fn field(input: &str) -> IResult<&str, Field> {
map_res(take_while(char::is_alphabetic), str::parse)(input)
}
const OPERATOR_CHARS: &[char] = &['=', '<', '>', ':'];
fn operator(input: &str) -> IResult<&str, Operator> {
map_res(take_while_m_n(1, 2, |c| OPERATOR_CHARS.contains(&c)), str::parse)(input)
}
fn value(input: &str) -> IResult<&str, Value> {
map_res(rest, |i: &str| match i.parse() {
Ok(n) => Result::<_, ()>::Ok(Value::Numerical(n)),
Err(_) => Ok(Value::String(i.to_owned())),
})(input)
}
#[derive(Debug, PartialEq, Eq, Clone, Copy)]
enum Field {
Atk,
Def,
Level,
Type,
Attribute,
Class,
}
impl FromStr for Field {
type Err = String;
fn from_str(s: &str) -> Result<Self, Self::Err> {
Ok(match s.to_lowercase().as_ref() {
"atk" => Self::Atk,
"def" => Self::Def,
"level" | "l" => Self::Level,
"type" | "t" => Self::Type,
"attribute" | "attr" | "a" => Self::Attribute,
"c" | "class" => Self::Class,
_ => Err(s.to_string())?,
})
}
}
#[derive(Debug, PartialEq, Eq, Clone, Copy)]
enum Operator {
Equals,
Less,
LessEqual,
Greater,
GreaterEqual,
}
impl Operator {
pub fn filter_number(&self, a: Option<i32>, b: i32) -> bool {
if let Some(a) = a {
match self {
Self::Equals => a == b,
Self::Less => a < b,
Self::LessEqual => a <= b,
Self::Greater => a > b,
Self::GreaterEqual => a >= b,
}
} else {
false
}
}
}
impl FromStr for Operator {
type Err = String;
fn from_str(s: &str) -> Result<Self, Self::Err> {
Ok(match s {
"=" | "==" | ":" => Self::Equals,
">=" | "=>" => Self::GreaterEqual,
"<=" | "=<" => Self::LessEqual,
">" => Self::Greater,
"<" => Self::Less,
_ => Err(s.to_owned())?,
})
}
}
#[derive(Debug, PartialEq, Eq, Clone)]
enum Value {
String(String),
Numerical(i32),
}
#[derive(Debug, Deserialize, PartialEq, Eq, Clone)]
struct CardInfo {
data: Vec<Card>,
}
fn split_types<'de, D: Deserializer<'de>>(deserializer: D) -> Result<Vec<String>, D::Error> {
struct SplittingVisitor;
impl<'de> Visitor<'de> for SplittingVisitor {
type Value = Vec<String>;
fn expecting(&self, formatter: &mut std::fmt::Formatter) -> std::fmt::Result {
formatter.write_str("a string")
}
fn visit_str<E: serde::de::Error>(self, v: &str) -> Result<Self::Value, E> {
Ok(v.split_whitespace().filter(|t| t != &"Card").map(str::to_owned).collect())
}
}
deserializer.deserialize_any(SplittingVisitor)
}
#[derive(Debug, Deserialize, PartialEq, Eq, Clone, Default)]
#[serde(tag = "type")]
struct Card {
#[serde(rename = "type", deserialize_with = "split_types")]
card_type: Vec<String>,
name: String,
#[serde(rename = "desc")]
text: String,
// Will also be None for ?
atk: Option<i32>,
def: Option<i32>,
attribute: Option<String>,
#[serde(rename = "race")]
r#type: String,
// also includes rank
level: Option<i32>,
#[serde(rename = "linkval")]
link_rating: Option<i32>,
linkmarkers: Option<Vec<String>>,
}
impl Display for Card {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "{} (", &self.name)?;
if let Some(level) = self.level {
write!(f, "Level {level} ")?;
} else if let Some(lr) = self.link_rating {
write!(f, "Link {lr} ")?;
}
if let Some(attr) = &self.attribute {
write!(f, "{attr}/")?;
}
f.write_str(&self.r#type)?;
write!(f, " {})", self.card_type.join(" "))?;
if self.card_type.contains(&String::from("Monster")) {
match (self.atk, self.def) {
(Some(atk), Some(def)) => write!(f, " {atk} ATK / {def} DEF")?,
(Some(atk), None) if self.link_rating.is_some() => write!(f, "{atk} ATK")?,
(None, Some(def)) => write!(f, " ? ATK / {def} DEF")?,
(Some(atk), None) => write!(f, " {atk} ATK / ? DEF")?,
(None, None) => write!(f, " ? ATK / ? DEF")?,
}
}
Ok(())
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_spell() {
let s = r#"
{
"id": 41142615,
"name": "The Cheerful Coffin",
"type": "Spell Card",
"desc": "Discard up to 3 Monster Cards from your hand to the Graveyard.",
"race": "Normal"
}"#;
let coffin: Card = serde_json::from_str(s).unwrap();
assert_eq!(
coffin,
Card {
card_type: vec!["Spell".to_owned()],
name: "The Cheerful Coffin".to_owned(),
text: "Discard up to 3 Monster Cards from your hand to the Graveyard.".to_owned(),
r#type: "Normal".to_owned(),
..Default::default()
}
)
}
#[test]
fn test_monster() {
let s = r#"
{
"id": 2326738,
"name": "Des Lacooda",
"type": "Effect Monster",
"desc": "Once per turn: You can change this card to face-down Defense Position. When this card is Flip Summoned: Draw 1 card.",
"atk": 500,
"def": 600,
"level": 3,
"race": "Zombie",
"attribute": "EARTH"
}"#;
let munch: Card = serde_json::from_str(s).unwrap();
assert_eq!(
munch,
Card {
card_type: vec!["Effect".to_owned(), "Monster".to_owned()],
name: "Des Lacooda".to_owned(),
text:
"Once per turn: You can change this card to face-down Defense Position. When this card is Flip Summoned: Draw 1 card."
.to_owned(),
atk: Some(500),
def: Some(600),
level: Some(3),
r#type: "Zombie".to_owned(),
attribute: Some("EARTH".to_owned()),
..Default::default()
},
)
}
}