use deserializing properly

Cargo.toml

@@ -4,7 +4,7 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
-chrono = { version = "0.4.38", default-features = false }
+chrono = { version = "0.4.38", default-features = false, features = ["serde"] }
 crossterm = { version = "0.29", default-features = false, features = ["events"] }
 futures = { version = "0.3.30", default-features = false }
 icy_sixel = { version = "0.1.2", default-features = false }

src/error.rs

@@ -176,6 +176,13 @@ pub enum PublicationDemographicError {
     InvalidValue,
 }
 
+#[derive(Error, Debug)]
+pub enum ParseLangErr {
+    #[error("found invalid lang")]
+    Invalid,
+}
+
+
 #[derive(Debug, Error, Deserialize)]
 #[serde(rename_all = "camelCase")]
 pub struct ApiError {

src/language.rs

@@ -2,6 +2,7 @@
 
 use serde::{Serialize, Serializer};
 use std::fmt;
+use crate::error::ParseLangErr;
 
 #[derive(Debug, Serialize)]
 pub enum Language {
@@ -62,13 +63,19 @@ impl ExtraLang {
     }
 }
 
-impl Language {
-    pub fn from(s: &str) -> Self {
+use std::str::FromStr;
+
+impl FromStr for Language {
+    type Err = ParseLangErr;
+
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
         if let Some(extra) = ExtraLang::from(s) {
-            Language::Extra(extra)
-        } else {
-            Language::Normal(isolang::Language::from_639_1(s).unwrap())
+            return Ok(Language::Extra(extra));
         }
+        if let Some(lang) = isolang::Language::from_639_1(s) {
+            return Ok(Language::Normal(lang));
+        }
+        Err(Self::Err::Invalid)
     }
 }
 

src/main.rs

@@ -1,7 +1,7 @@
 // TODO: Only use a single struct for deserializing
 use client::{MangaClient, MangaClientBuilder, Search, SearchOptionsBuilder};
 use language::Language;
-use response_deserializer::{Chapter, DataType, Id, Manga};
+use types::{Chapter, DataType, Id, Manga};
 use select::Entry;
 use std::{fs, future::Future, path::Path, pin::Pin, process};
 use util::{ConfigSearch, CoverSize, SelectionType};
@@ -14,6 +14,7 @@ mod select;
 mod test;
 mod util;
 mod language;
+mod types;
 
 const BASE: &str = "https://api.mangadex.org";
 const ONLY_METADATA: bool = true;

src/response_deserializer.rs

@@ -1,311 +1,10 @@
 // TODO: Remove this
-#![allow(unused)]
 use crate::error::*;
+use crate::types::*;
 use crate::language::Language;
-use chrono::{DateTime, FixedOffset};
-use serde::{Deserialize, Deserializer, Serialize};
+use serde::{Deserialize, Deserializer};
 use std::fmt;
 
-#[derive(Debug, Clone, PartialEq, Deserialize)]
-pub struct Id(pub String);
-
-#[derive(Deserialize, Debug, PartialEq)]
-#[serde(rename_all = "lowercase")]
-pub enum ResponseResult {
-    Ok,
-}
-
-#[derive(Debug, Serialize, Deserialize)]
-#[serde(rename_all = "lowercase")]
-pub enum Status {
-    Completed,
-    Ongoing,
-    Hiatus,
-    Cancelled,
-}
-
-#[derive(Debug, Serialize, Deserialize)]
-#[serde(rename_all = "lowercase")]
-pub enum ContentRating {
-    Safe,
-    Suggestive,
-    Erotica,
-    Pornographic,
-}
-
-#[derive(Debug, Serialize)]
-pub enum PublicationDemographic {
-    Shounen,
-    Shoujo,
-    Seinen,
-    Josei,
-}
-
-#[derive(Debug, Serialize, Deserialize)]
-#[serde(rename_all = "lowercase")]
-pub enum State {
-    Published,
-}
-
-#[derive(Debug, Deserialize)]
-#[serde(rename_all = "lowercase")]
-pub enum Response {
-    Collection,
-    Entity,
-}
-
-#[derive(Debug, PartialEq, Deserialize)]
-#[serde(rename_all = "snake_case")]
-pub enum DataType {
-    Manga,
-    Chapter,
-    CoverArt,
-    Author,
-    Artist,
-    ScanlationGroup,
-    Tag,
-    User,
-    CustomList,
-    Creator,
-}
-
-#[derive(Debug, Deserialize)]
-#[serde(rename_all = "camelCase")]
-#[serde(deny_unknown_fields)]
-pub struct ChapterImages {
-    pub result: ResponseResult,
-    pub base_url: String,
-    pub chapter: ChapterImageData,
-}
-
-#[derive(Debug, Deserialize)]
-#[serde(rename_all = "camelCase")]
-#[serde(deny_unknown_fields)]
-pub struct ChapterImageData {
-    pub hash: String,
-    pub data: Vec<String>,
-    pub data_saver: Vec<String>,
-}
-
-#[derive(Deserialize, Debug)]
-#[serde(deny_unknown_fields)]
-pub struct ChapterFeed {
-    pub result: ResponseResult,
-    pub response: Response,
-    pub data: Vec<Chapter>,
-    pub limit: u32,
-    pub offset: u32,
-    pub total: u32,
-}
-
-#[derive(Deserialize, Debug)]
-#[serde(deny_unknown_fields)]
-pub struct Chapter {
-    pub id: Id,
-    #[serde(rename = "type")]
-    pub data_type: DataType,
-    pub attributes: ChapterAttributes,
-    pub relationships: Vec<Relationship>,
-}
-
-#[derive(Deserialize, Debug)]
-#[serde(rename_all = "camelCase")]
-#[serde(deny_unknown_fields)]
-pub struct ChapterAttributes {
-    #[serde(deserialize_with = "opt_string_to_opt_f32")]
-    pub volume: Option<f32>,
-    #[serde(deserialize_with = "opt_string_to_opt_f32")]
-    pub chapter: Option<f32>,
-    pub title: Option<String>,
-    #[serde(deserialize_with = "string_to_language")]
-    pub translated_language: Language,
-    pub external_url: Option<String>,
-    pub is_unavailable: bool,
-    #[serde(deserialize_with = "string_to_datetime")]
-    #[serde(rename = "publishAt")]
-    pub published_at: DateTime<FixedOffset>,
-    #[serde(deserialize_with = "string_to_datetime")]
-    pub readable_at: DateTime<FixedOffset>,
-    #[serde(deserialize_with = "string_to_datetime")]
-    pub created_at: DateTime<FixedOffset>,
-    #[serde(deserialize_with = "string_to_datetime")]
-    pub updated_at: DateTime<FixedOffset>,
-    pub pages: u32,
-    pub version: u32,
-}
-
-#[derive(Deserialize, Debug)]
-#[serde(deny_unknown_fields)]
-pub struct SearchResult {
-    pub result: ResponseResult,
-    pub response: Response,
-    pub data: Vec<Manga>,
-    pub limit: u32,
-    pub offset: u32,
-    pub total: u32,
-}
-
-#[derive(Deserialize, Debug)]
-#[serde(deny_unknown_fields)]
-pub struct IdQueryResult {
-    pub result: ResponseResult,
-    pub response: Response,
-    pub data: Manga,
-}
-
-#[derive(Deserialize, Debug)]
-#[serde(deny_unknown_fields)]
-pub struct Manga {
-    pub id: Id,
-    #[serde(rename = "type")]
-    pub data_type: DataType,
-    pub attributes: MangaAttributes,
-    pub relationships: Vec<Relationship>,
-}
-
-#[derive(Deserialize, Debug)]
-#[serde(rename_all = "camelCase")]
-#[serde(deny_unknown_fields)]
-pub struct MangaAttributes {
-    pub title: Titles,
-    pub alt_titles: Vec<AltTitles>,
-    pub description: Description,
-    pub is_locked: bool,
-    pub links: Option<Links>,
-    pub official_links: Option<Vec<String>>,
-    #[serde(deserialize_with = "string_to_language")]
-    pub original_language: Language,
-    #[serde(deserialize_with = "opt_string_to_opt_f32")]
-    pub last_volume: Option<f32>,
-    #[serde(deserialize_with = "opt_string_to_opt_f32")]
-    pub last_chapter: Option<f32>,
-    #[serde(deserialize_with = "opt_string_to_opt_demographic")]
-    pub publication_demographic: Option<PublicationDemographic>,
-    pub status: Status,
-    pub year: Option<u32>,
-    pub content_rating: ContentRating,
-    pub tags: Vec<Tag>,
-    pub state: State,
-    pub chapter_numbers_reset_on_new_volume: bool,
-    #[serde(deserialize_with = "string_to_datetime")]
-    pub created_at: DateTime<FixedOffset>,
-    #[serde(deserialize_with = "string_to_datetime")]
-    pub updated_at: DateTime<FixedOffset>,
-    pub version: u32,
-    #[serde(deserialize_with = "vec_opt_string_to_vec_opt_language")]
-    pub available_translated_languages: Vec<Option<Language>>,
-    #[serde(deserialize_with = "opt_string_to_opt_id")]
-    pub latest_uploaded_chapter: Option<Id>,
-}
-
-#[derive(Deserialize, Debug)]
-#[serde(rename_all = "camelCase")]
-#[serde(deny_unknown_fields)]
-pub struct CoverAttributes {
-    pub description: String,
-    #[serde(deserialize_with = "opt_string_to_opt_f32")]
-    pub volume: Option<f32>,
-    pub file_name: Id,
-    #[serde(deserialize_with = "string_to_language")]
-    pub locale: Language,
-    #[serde(deserialize_with = "string_to_datetime")]
-    pub created_at: DateTime<FixedOffset>,
-    #[serde(deserialize_with = "string_to_datetime")]
-    pub updated_at: DateTime<FixedOffset>,
-    pub version: u32,
-}
-
-#[derive(Deserialize, Debug)]
-#[serde(deny_unknown_fields)]
-pub struct Tag {
-    pub id: Id,
-    #[serde(rename = "type")]
-    pub data_type: DataType,
-    pub attributes: TagAttributes,
-    pub relationships: Vec<Relationship>,
-}
-
-#[derive(Deserialize, Debug)]
-#[serde(deny_unknown_fields)]
-pub struct Relationship {
-    pub id: Id,
-    #[serde(rename = "type")]
-    pub data_type: DataType,
-    pub related: Option<String>,
-    pub attributes: Option<CoverAttributes>,
-}
-
-#[derive(Deserialize, Debug)]
-#[serde(deny_unknown_fields)]
-pub struct TagAttributes {
-    pub name: TagName,
-    pub description: Description,
-    pub group: String,
-    pub version: u32,
-}
-
-#[derive(Deserialize, Debug)]
-#[serde(deny_unknown_fields)]
-pub struct TagName {
-    pub en: String,
-}
-
-#[derive(Deserialize, Debug, Default)]
-#[serde(deny_unknown_fields)]
-pub struct Links {
-    al: Option<String>,
-    ap: Option<String>,
-    bw: Option<String>,
-    kt: Option<String>,
-    mu: Option<String>,
-    amz: Option<String>,
-    cdj: Option<String>,
-    ebj: Option<String>,
-    mal: Option<String>,
-    engtl: Option<String>,
-    raw: Option<String>,
-    nu: Option<String>,
-}
-
-#[derive(Deserialize, Debug)]
-// #[serde(deny_unknown_fields)]
-// TODO: Fill
-pub struct Description {
-    pub en: Option<String>,
-    pub ru: Option<String>,
-}
-
-#[derive(Deserialize, Debug)]
-// #[serde(deny_unknown_fields)]
-// TODO: Fill
-pub struct AltTitles {
-    en: Option<String>,
-    ja: Option<String>,
-    ru: Option<String>,
-    de: Option<String>,
-    lt: Option<String>,
-    ar: Option<String>,
-    zh: Option<String>,
-    hi: Option<String>,
-}
-
-#[derive(Deserialize, Debug)]
-#[serde(deny_unknown_fields)]
-pub struct Titles {
-    pub en: String,
-}
-
-impl TryFrom<&str> for State {
-    type Error = ();
-
-    fn try_from(s: &str) -> Result<Self, Self::Error> {
-        Ok(match s {
-            "published" => Self::Published,
-            _ => return Err(()),
-        })
-    }
-}
-
 impl TryFrom<&str> for ContentRating {
     type Error = ();
 
@@ -447,29 +146,6 @@ pub fn deserialize_chapter_images(json: &str) -> ChapterImages {
     serde_json::from_str(json).unwrap()
 }
 
-fn opt_string_to_opt_demographic<'de, D>(
-    deserializer: D,
-) -> Result<Option<PublicationDemographic>, D::Error>
-where
-    D: Deserializer<'de>,
-{
-    let opt = Option::<String>::deserialize(deserializer)?;
-    match opt {
-        Some(n) => Ok(Some(
-            n.as_str().try_into().map_err(serde::de::Error::custom)?,
-        )),
-        None => Ok(None),
-    }
-}
-
-fn string_to_datetime<'de, D>(deserializer: D) -> Result<DateTime<FixedOffset>, D::Error>
-where
-    D: Deserializer<'de>,
-{
-    let s = String::deserialize(deserializer)?;
-    DateTime::parse_from_rfc3339(&s).map_err(serde::de::Error::custom)
-}
-
 fn opt_string_to_opt_f32<'de, D>(deserializer: D) -> Result<Option<f32>, D::Error>
 where
     D: Deserializer<'de>,
@@ -487,34 +163,65 @@ where
     }
 }
 
-fn string_to_language<'de, D>(deserializer: D) -> Result<Language, D::Error>
-where
-    D: Deserializer<'de>,
-{
-    let s = String::deserialize(deserializer)?;
-    Ok(Language::from(s.as_str()))
+use serde::de::{self, Visitor};
+
+struct LanguageVisitor;
+
+impl<'de> Visitor<'de> for LanguageVisitor {
+    type Value = Language;
+
+    fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+        formatter.write_str("an integer or string for for converting to Language")
+    }
+
+    fn visit_str<E>(self, value: &str) -> Result<Self::Value, E>
+    where
+        E: de::Error,
+    {
+        value.parse().map_err(|_| {
+            E::custom(format!(
+                "invalid str for converting to Language, got `{value}`"
+            ))
+        })
+    }
 }
 
-fn vec_opt_string_to_vec_opt_language<'de, D>(
-    deserializer: D,
-) -> Result<Vec<Option<Language>>, D::Error>
-where
-    D: Deserializer<'de>,
-{
-    Ok(Vec::<Option<String>>::deserialize(deserializer)?
-        .into_iter()
-        .map(|m| m.map(|v| Language::from(v.as_str())))
-        .collect())
+impl<'de> Deserialize<'de> for Language {
+    fn deserialize<D>(deserializer: D) -> Result<Language, D::Error>
+    where
+        D: Deserializer<'de>,
+    {
+        deserializer.deserialize_any(LanguageVisitor)
+    }
 }
 
-fn opt_string_to_opt_id<'de, D>(deserializer: D) -> Result<Option<Id>, D::Error>
-where
-    D: Deserializer<'de>,
-{
-    let opt = Option::<String>::deserialize(deserializer)?;
-    match opt {
-        Some(n) => Ok(Some(Id(n))),
-        None => Ok(None),
+struct PublicationDemographicVisitor;
+
+impl<'de> Visitor<'de> for PublicationDemographicVisitor {
+    type Value = PublicationDemographic;
+
+    fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+        formatter.write_str("an integer or string for for converting to PublicationDemographic")
+    }
+
+    fn visit_str<E>(self, value: &str) -> Result<Self::Value, E>
+    where
+        E: de::Error,
+    {
+        value.try_into().map_err(|_| {
+            E::custom(format!(
+                "invalid str for converting to PublicationDemographic, got `{value}`"
+            ))
+        })
+    }
+}
+
+impl<'de> Deserialize<'de> for PublicationDemographic {
+    fn deserialize<D>(deserializer: D) -> Result<PublicationDemographic, D::Error>
+    where
+        D: Deserializer<'de>,
+    {
+        deserializer.deserialize_any(PublicationDemographicVisitor)
     }
 }
 

src/types.rs

@@ -0,0 +1,303 @@
+#![allow(unused)]
+use crate::language::Language;
+use chrono::{DateTime, FixedOffset};
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, Clone, PartialEq, Deserialize)]
+pub struct Id(pub String);
+
+#[derive(Deserialize, Debug, PartialEq)]
+#[serde(rename_all = "lowercase")]
+pub enum ResponseResult {
+    Ok,
+}
+
+#[derive(Debug, Serialize, Deserialize)]
+#[serde(rename_all = "lowercase")]
+pub enum Status {
+    Completed,
+    Ongoing,
+    Hiatus,
+    Cancelled,
+}
+
+#[derive(Debug, Serialize, Deserialize)]
+#[serde(rename_all = "lowercase")]
+pub enum ContentRating {
+    Safe,
+    Suggestive,
+    Erotica,
+    Pornographic,
+}
+
+#[derive(Debug, Serialize)]
+pub enum PublicationDemographic {
+    Shounen,
+    Shoujo,
+    Seinen,
+    Josei,
+}
+
+#[derive(Debug, Serialize, Deserialize)]
+#[serde(rename_all = "lowercase")]
+pub enum State {
+    Published,
+}
+
+#[derive(Debug, Deserialize)]
+#[serde(rename_all = "lowercase")]
+pub enum Response {
+    Collection,
+    Entity,
+}
+
+#[derive(Debug, PartialEq, Deserialize)]
+#[serde(rename_all = "snake_case")]
+pub enum DataType {
+    Manga,
+    Chapter,
+    CoverArt,
+    Author,
+    Artist,
+    ScanlationGroup,
+    Tag,
+    User,
+    CustomList,
+    Creator,
+}
+
+#[derive(Debug, Deserialize)]
+#[serde(rename_all = "camelCase")]
+#[serde(deny_unknown_fields)]
+pub struct ChapterImages {
+    pub result: ResponseResult,
+    pub base_url: String,
+    pub chapter: ChapterImageData,
+}
+
+#[derive(Debug, Deserialize)]
+#[serde(rename_all = "camelCase")]
+#[serde(deny_unknown_fields)]
+pub struct ChapterImageData {
+    pub hash: String,
+    pub data: Vec<String>,
+    pub data_saver: Vec<String>,
+}
+
+#[derive(Deserialize, Debug)]
+#[serde(deny_unknown_fields)]
+pub struct ChapterFeed {
+    pub result: ResponseResult,
+    pub response: Response,
+    pub data: Vec<Chapter>,
+    pub limit: u32,
+    pub offset: u32,
+    pub total: u32,
+}
+
+#[derive(Deserialize, Debug)]
+#[serde(deny_unknown_fields)]
+pub struct Chapter {
+    pub id: Id,
+    #[serde(rename = "type")]
+    pub data_type: DataType,
+    pub attributes: ChapterAttributes,
+    pub relationships: Vec<Relationship>,
+}
+
+#[derive(Deserialize, Debug)]
+#[serde(rename_all = "camelCase")]
+#[serde(deny_unknown_fields)]
+pub struct ChapterAttributes {
+    #[serde(deserialize_with = "opt_string_to_opt_f32")]
+    pub volume: Option<f32>,
+    #[serde(deserialize_with = "opt_string_to_opt_f32")]
+    pub chapter: Option<f32>,
+    pub title: Option<String>,
+    pub translated_language: Language,
+    pub external_url: Option<String>,
+    pub is_unavailable: bool,
+    #[serde(rename = "publishAt")]
+    pub published_at: DateTime<FixedOffset>,
+    pub readable_at: DateTime<FixedOffset>,
+    pub created_at: DateTime<FixedOffset>,
+    pub updated_at: DateTime<FixedOffset>,
+    pub pages: u32,
+    pub version: u32,
+}
+
+#[allow(unused)]
+#[derive(Deserialize, Debug)]
+#[serde(deny_unknown_fields)]
+pub struct SearchResult {
+    pub result: ResponseResult,
+    pub response: Response,
+    pub data: Vec<Manga>,
+    pub limit: u32,
+    pub offset: u32,
+    pub total: u32,
+}
+
+#[allow(unused)]
+#[derive(Deserialize, Debug)]
+#[serde(deny_unknown_fields)]
+pub struct IdQueryResult {
+    pub result: ResponseResult,
+    pub response: Response,
+    pub data: Manga,
+}
+
+#[allow(unused)]
+#[derive(Deserialize, Debug)]
+#[serde(deny_unknown_fields)]
+pub struct Manga {
+    pub id: Id,
+    #[serde(rename = "type")]
+    pub data_type: DataType,
+    pub attributes: MangaAttributes,
+    pub relationships: Vec<Relationship>,
+}
+
+#[allow(unused)]
+#[derive(Deserialize, Debug)]
+#[serde(rename_all = "camelCase")]
+#[serde(deny_unknown_fields)]
+pub struct MangaAttributes {
+    pub title: Titles,
+    pub alt_titles: Vec<AltTitles>,
+    pub description: Description,
+    pub is_locked: bool,
+    pub links: Option<Links>,
+    pub official_links: Option<Vec<String>>,
+    pub original_language: Language,
+    #[serde(deserialize_with = "opt_string_to_opt_f32")]
+    pub last_volume: Option<f32>,
+    #[serde(deserialize_with = "opt_string_to_opt_f32")]
+    pub last_chapter: Option<f32>,
+    pub publication_demographic: Option<PublicationDemographic>,
+    pub status: Status,
+    pub year: Option<u32>,
+    pub content_rating: ContentRating,
+    pub tags: Vec<Tag>,
+    pub state: State,
+    pub chapter_numbers_reset_on_new_volume: bool,
+    pub created_at: DateTime<FixedOffset>,
+    pub updated_at: DateTime<FixedOffset>,
+    pub version: u32,
+    pub available_translated_languages: Vec<Option<Language>>,
+    pub latest_uploaded_chapter: Option<Id>,
+}
+
+#[allow(unused)]
+#[derive(Deserialize, Debug)]
+#[serde(rename_all = "camelCase")]
+#[serde(deny_unknown_fields)]
+pub struct CoverAttributes {
+    pub description: String,
+    #[serde(deserialize_with = "opt_string_to_opt_f32")]
+    pub volume: Option<f32>,
+    pub file_name: Id,
+    pub locale: Language,
+    pub created_at: DateTime<FixedOffset>,
+    pub updated_at: DateTime<FixedOffset>,
+    pub version: u32,
+}
+
+#[allow(unused)]
+#[derive(Deserialize, Debug)]
+#[serde(deny_unknown_fields)]
+pub struct Tag {
+    pub id: Id,
+    #[serde(rename = "type")]
+    pub data_type: DataType,
+    pub attributes: TagAttributes,
+    pub relationships: Vec<Relationship>,
+}
+
+#[allow(unused)]
+#[derive(Deserialize, Debug)]
+#[serde(deny_unknown_fields)]
+pub struct Relationship {
+    pub id: Id,
+    #[serde(rename = "type")]
+    pub data_type: DataType,
+    pub related: Option<String>,
+    pub attributes: Option<CoverAttributes>,
+}
+
+#[allow(unused)]
+#[derive(Deserialize, Debug)]
+#[serde(deny_unknown_fields)]
+pub struct TagAttributes {
+    pub name: TagName,
+    pub description: Description,
+    pub group: String,
+    pub version: u32,
+}
+
+#[allow(unused)]
+#[derive(Deserialize, Debug)]
+#[serde(deny_unknown_fields)]
+pub struct TagName {
+    pub en: String,
+}
+
+#[allow(unused)]
+#[derive(Deserialize, Debug, Default)]
+#[serde(deny_unknown_fields)]
+pub struct Links {
+    al: Option<String>,
+    ap: Option<String>,
+    bw: Option<String>,
+    kt: Option<String>,
+    mu: Option<String>,
+    amz: Option<String>,
+    cdj: Option<String>,
+    ebj: Option<String>,
+    mal: Option<String>,
+    engtl: Option<String>,
+    raw: Option<String>,
+    nu: Option<String>,
+}
+
+#[allow(unused)]
+#[derive(Deserialize, Debug)]
+// #[serde(deny_unknown_fields)]
+// TODO: Fill
+pub struct Description {
+    pub en: Option<String>,
+    pub ru: Option<String>,
+}
+
+#[allow(unused)]
+#[derive(Deserialize, Debug)]
+// #[serde(deny_unknown_fields)]
+// TODO: Fill
+pub struct AltTitles {
+    en: Option<String>,
+    ja: Option<String>,
+    ru: Option<String>,
+    de: Option<String>,
+    lt: Option<String>,
+    ar: Option<String>,
+    zh: Option<String>,
+    hi: Option<String>,
+}
+
+#[derive(Deserialize, Debug)]
+#[serde(deny_unknown_fields)]
+pub struct Titles {
+    pub en: String,
+}
+
+impl TryFrom<&str> for State {
+    type Error = ();
+
+    fn try_from(s: &str) -> Result<Self, Self::Error> {
+        Ok(match s {
+            "published" => Self::Published,
+            _ => return Err(()),
+        })
+    }
+}
+