deepwoken 0.2.5

A library for interacting with Deepwoken data in a more convenient format, with a few added utilities.
Documentation 
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use std::{
    collections::HashMap,
    ops::{Add, AddAssign},
    str::FromStr,
};

use serde::{Deserialize, Deserializer, de};

use std::path::Path;

use crate::{error, model::data::DeepData, model::opt::OptionalGroup, model::req::Requirement};

/// The parsed representation of a reqfile
#[derive(Clone, Debug)]
pub struct Reqfile {
    pub general: Vec<Requirement>,
    pub post: Vec<Requirement>,

    pub optional: Vec<OptionalGroup>,

    /// Implicit talent reqs, keyed by identifier.
    pub implicit: HashMap<String, Requirement>,
}

impl Add for Reqfile {
    type Output = Reqfile;

    fn add(self, rhs: Self) -> Self::Output {
        Self {
            general: self
                .general
                .iter()
                .chain(rhs.general.iter())
                .cloned()
                .collect(),
            post: self.post.iter().chain(rhs.post.iter()).cloned().collect(),
            optional: self
                .optional
                .iter()
                .chain(rhs.optional.iter())
                .cloned()
                .collect(),
            implicit: self.implicit.into_iter().chain(rhs.implicit).collect(),
        }
    }
}

impl AddAssign for Reqfile {
    fn add_assign(&mut self, rhs: Self) {
        self.general.extend(rhs.general);
        self.post.extend(rhs.post);
        self.optional.extend(rhs.optional);
        self.implicit.extend(rhs.implicit);
    }
}

impl Reqfile {
    pub fn parse_str(content: &str) -> error::Result<Self> {
        crate::parse::reqfile::parse_reqfile_str(content)
    }

    pub fn resolve_implicit(&mut self, data: &DeepData) {
        for talent in data.talents().filter(|t| t.implicit) {
            if let Some(name) = talent.reqs.name.clone() {
                self.implicit.insert(name, talent.reqs.clone());
            }
        }
    }

    pub fn from_file(path: &Path) -> error::Result<Self> {
        crate::parse::reqfile::parse_reqfile(path)
    }

    #[must_use]
    pub fn generate(&self) -> String {
        crate::parse::reqfile::gen_reqfile(self)
    }

    /// Retrieve an iterator containing the required requirements
    pub fn req_iter(&self) -> impl Iterator<Item = &Requirement> {
        self.general.iter().chain(self.post.iter())
    }
}

impl FromStr for Reqfile {
    type Err = String;

    fn from_str(s: &str) -> Result<Self, Self::Err> {
        crate::parse::reqfile::parse_reqfile_str(s)
            .map_err(|e| format!("Failed to parse requirement: {e}"))
    }
}

impl<'de> Deserialize<'de> for Reqfile {
    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
    where
        D: Deserializer<'de>,
    {
        let s = String::deserialize(deserializer)?;
        s.parse().map_err(de::Error::custom)
    }
}