use rust_decimal::Decimal;
use serde::{Deserialize, Serialize};
use std::{fmt::Display, str::FromStr};
use thiserror::Error;

#[derive(Serialize, Deserialize, Clone, Eq, PartialEq, Ord, PartialOrd, Hash, Debug, Default)]
#[serde(transparent)]
pub struct StockName(String);

impl From<String> for StockName {
    fn from(s: String) -> Self {
        Self(s)
    }
}

#[derive(Error, Debug)]
pub enum StockNameParseError {}

impl FromStr for StockName {
    type Err = StockNameParseError;

    fn from_str(s: &str) -> Result<Self, Self::Err> {
        Ok(Self(s.to_string()))
    }
}

#[derive(Serialize, Deserialize, Clone, Eq, PartialEq, Ord, PartialOrd, Hash, Debug, Default)]
#[serde(transparent)]
pub struct StockSymbol(String);

impl Display for StockSymbol {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        write!(f, "${}", self.0)
    }
}

impl From<String> for StockSymbol {
    fn from(s: String) -> Self {
        Self(s)
    }
}

impl FromStr for StockSymbol {
    type Err = StockNameParseError;

    fn from_str(s: &str) -> Result<Self, Self::Err> {
        Ok(Self(s.to_string()))
    }
}

impl StockSymbol {
    pub fn inner(&self) -> &str {
        &self.0
    }
}

#[derive(Serialize, Deserialize, Clone, Eq, PartialEq, Ord, PartialOrd, Hash, Debug, Default)]
#[serde(transparent)]
pub struct StockDescription(String);

impl From<String> for StockDescription {
    fn from(s: String) -> Self {
        Self(s)
    }
}

#[derive(Serialize, Deserialize, Copy, Clone, PartialEq, PartialOrd, Debug, Default)]
#[serde(transparent)]
pub struct StockPrice(Decimal);

impl From<Decimal> for StockPrice {
    fn from(p: Decimal) -> Self {
        Self(p)
    }
}

#[derive(Serialize, Deserialize, Clone, PartialEq, Debug)]
pub struct Stock {
    name: StockName,
    symbol: StockSymbol,
    description: StockDescription,
    price: StockPrice,
}

impl Stock {
    pub fn new(
        name: impl Into<StockName>,
        symbol: impl Into<StockSymbol>,
        description: impl Into<StockDescription>,
        price: impl Into<StockPrice>,
    ) -> Self {
        Self {
            name: name.into(),
            symbol: symbol.into(),
            description: description.into(),
            price: price.into(),
        }
    }
}