Add dictionary and dictionary quiz pages

Cargo.lock

@@ -649,6 +649,27 @@ version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f27ae1dd37df86211c42e150270f82743308803d90a6f6e6651cd730d5e1732f"
 
+[[package]]
+name = "dirs"
+version = "6.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c3e8aa94d75141228480295a7d0e7feb620b1a5ad9f12bc40be62411e38cce4e"
+dependencies = [
+ "dirs-sys",
+]
+
+[[package]]
+name = "dirs-sys"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e01a3366d27ee9890022452ee61b2b63a67e6f13f58900b651ff5665f0bb1fab"
+dependencies = [
+ "libc",
+ "option-ext",
+ "redox_users",
+ "windows-sys 0.61.2",
+]
+
 [[package]]
 name = "dispatch"
 version = "0.2.0"
@@ -986,6 +1007,17 @@ dependencies = [
  "windows-link",
 ]
 
+[[package]]
+name = "getrandom"
+version = "0.2.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ff2abc00be7fca6ebc474524697ae276ad847ad0a6b3faa4bcb027e9a4614ad0"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "wasi",
+]
+
 [[package]]
 name = "getrandom"
 version = "0.3.4"
@@ -1392,8 +1424,11 @@ checksum = "92ecc6618181def0457392ccd0ee51198e065e016d1d527a7ac1b6dc7c1f09d2"
 name = "jap_learn"
 version = "0.1.0"
 dependencies = [
+ "dirs",
  "iced",
  "rand",
+ "serde",
+ "serde_json",
 ]
 
 [[package]]
@@ -2146,6 +2181,12 @@ version = "1.21.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "42f5e15c9953c5e4ccceeb2e7382a716482c34515315f7b03532b8b4e8393d2d"
 
+[[package]]
+name = "option-ext"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "04744f49eae99ab78e0d5c0b603ab218f515ea8cfe5a456d7629ad883a3b6e7d"
+
 [[package]]
 name = "orbclient"
 version = "0.3.50"
@@ -2440,6 +2481,17 @@ dependencies = [
  "bitflags 2.10.0",
 ]
 
+[[package]]
+name = "redox_users"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a4e608c6638b9c18977b00b475ac1f28d14e84b27d8d42f70e0bf1e3dec127ac"
+dependencies = [
+ "getrandom 0.2.17",
+ "libredox",
+ "thiserror 2.0.18",
+]
+
 [[package]]
 name = "renderdoc-sys"
 version = "1.1.0"
@@ -3070,6 +3122,12 @@ dependencies = [
  "winapi-util",
 ]
 
+[[package]]
+name = "wasi"
+version = "0.11.1+wasi-snapshot-preview1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ccf3ec651a847eb01de73ccad15eb7d99f80485de043efb2f370cd654f4ea44b"
+
 [[package]]
 name = "wasip2"
 version = "1.0.2+wasi-0.2.9"

Cargo.toml

@@ -6,3 +6,6 @@ edition = "2024"
 [dependencies]
 iced = { version = "0.14.0", features = ["canvas"] }
 rand = "0.10.0"
+dirs = "6.0.0"
+serde = { version = "1.0.144", features = ["derive"] }
+serde_json = "1.0.149"

src/dictionary.rs

@@ -0,0 +1,317 @@
+use crate::dictionary::DictionaryMessage::Test;
+use crate::dictionary_test::DictionaryQuizState;
+use crate::{NavigatedPage, Page, RootMessage};
+use iced::alignment::Vertical::Center;
+use iced::widget::button::Style;
+use iced::widget::*;
+use iced::{Border, Color, Length, Shadow, Task};
+use serde::{Deserialize, Serialize};
+use std::collections::HashMap;
+use std::fs;
+use std::fs::File;
+use std::io::Read;
+use std::path::PathBuf;
+use DictionaryMessage::Back;
+
+#[derive(Clone, Debug)]
+pub struct DictionaryState {
+    dict: Vec<DictionaryElement>,
+    include_map: Vec<bool>,
+    tag_map: HashMap<String, bool>,
+    reverse: bool
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+pub struct DictionaryElement {
+    pub key: String,
+    pub value: String,
+    pub tags: String,
+}
+
+impl DictionaryElement {
+    fn new() -> Self {
+        Self {
+            key: String::new(),
+            value: String::new(),
+            tags: String::new(),
+        }
+    }
+}
+
+#[derive(Debug, Clone)]
+pub enum DictionaryMessage {
+    Back,
+    SetTags(usize, String),
+    SetKey(usize, String),
+    SetValue(usize, String),
+    Remove(usize),
+    NewWord,
+    Include(usize, bool),
+    IncludeTag(String, bool),
+    Save,
+    Test,
+    ResetTags,
+    SetReverse(bool),
+}
+
+impl NavigatedPage<DictionaryMessage> for DictionaryState {
+    fn navigate(&self, message: &DictionaryMessage) -> Option<Page> {
+        if let Back = message {
+            return Some(Page::PreviousPage);
+        }
+        if let Test = message {
+            if self.include_map.iter().any(|x| *x) {
+                let mut words = vec![];
+                for i in 0..self.include_map.len(){
+                    if self.include_map[i] {
+                        words.push(self.dict[i].clone());
+                    }
+                }
+                return Some(Page::DictionaryQuiz(DictionaryQuizState::new(words, self.reverse)))
+            }
+        }
+        None
+    }
+}
+
+impl Default for DictionaryState {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+impl DictionaryState {
+    pub fn new() -> Self {
+        let mut current_dict = "[]".to_string();
+        match File::open(dict_file()) {
+            Ok(mut f) => {
+                current_dict = String::new();
+                f.read_to_string(&mut current_dict).unwrap();
+            }
+            _ => {}
+        }
+        let list: Vec<DictionaryElement> = serde_json::from_str(&current_dict).unwrap();
+        let mut result = DictionaryState {
+            include_map: vec![false; list.len()],
+            dict: list,
+            tag_map: HashMap::new(),
+            reverse: false,
+        };
+
+        result.update_tags();
+        result
+    }
+
+    pub fn update(&mut self, message: DictionaryMessage) -> Task<RootMessage> {
+        match message {
+            DictionaryMessage::NewWord => {
+                self.dict.push(DictionaryElement::new());
+                self.include_map.push(false);
+            }
+            DictionaryMessage::SetKey(i, v) => self.dict[i].key = v,
+            DictionaryMessage::SetValue(i, v) => self.dict[i].value = v,
+            DictionaryMessage::SetTags(i, v) => {
+                self.dict[i].tags = v;
+                self.update_tags();
+            }
+            DictionaryMessage::Remove(i) => {
+                self.dict.remove(i);
+            }
+            DictionaryMessage::Include(i, b) => self.include_map[i] = b,
+            DictionaryMessage::IncludeTag(t, v) => {
+                println!("Including tag {}", t);
+                self.tag_map.insert(t, v);
+                self.update_words_include()
+            }
+            DictionaryMessage::ResetTags => {
+                self.tag_map.iter_mut().for_each(|(_, v)| *v = false);
+                self.include_map.iter_mut().for_each(|x| *x = false)
+            }
+            DictionaryMessage::Save => {
+                let dir = dict_file();
+                let content = serde_json::to_string_pretty(&self.dict.clone()).unwrap();
+                fs::write(dir, content.clone())
+                    .unwrap_or_else(|e| println!("Can't write file: {}", e));
+                println!("{}", content);
+            },
+            DictionaryMessage::SetReverse(v) => self.reverse = v,
+            _ => {}
+        }
+
+        Task::none()
+    }
+
+    pub fn view(&self) -> iced::Element<'_, DictionaryMessage> {
+        container(row![
+            iced::widget::column![
+                button("Назад").on_press(Back),
+                self.words_list(),
+                row![
+                    button("Добавить слово").on_press(DictionaryMessage::NewWord),
+                    button("Сохранить словарь").on_press(DictionaryMessage::Save),
+                ]
+                .spacing(10)
+            ]
+            .spacing(5)
+            .padding(10),
+            self.filters()
+        ])
+        .padding(10)
+        .into()
+    }
+
+    fn words_list(&self) -> iced::Element<'_, DictionaryMessage> {
+        let mut col = Column::new().width(Length::Fill);
+
+        let mut i = 0;
+        for word in &self.dict {
+            let mut line = Row::new().width(Length::Fill).align_y(Center);
+            line = line
+                .push(
+                    checkbox(self.include_map[i])
+                        .on_toggle(move |b| DictionaryMessage::Include(i, b)),
+                )
+                .push(space().width(10));
+
+            line = line.push(
+                text_input("Ключ", &word.key).size(20)
+                    .width(Length::Fill)
+                    .on_input(move |string| DictionaryMessage::SetKey(i, string)),
+            );
+            line = line.push(
+                text_input("Значение", &word.value).size(20)
+                    .width(Length::Fill)
+                    .on_input(move |string| DictionaryMessage::SetValue(i, string)),
+            );
+            line = line.push(
+                text_input("Тэги", &word.tags).size(20)
+                    .width(Length::Fill)
+                    .on_input(move |string| DictionaryMessage::SetTags(i, string)),
+            );
+
+            line = line
+                .push(
+                    button("-")
+                        .on_press_with(move || DictionaryMessage::Remove(i))
+                        .style(|_x, _status| Style {
+                            background: None,
+                            text_color: Color::BLACK,
+                            border: Border::default(),
+                            shadow: Shadow::default(),
+                            snap: false,
+                        }),
+                )
+                .push(space().width(10));
+
+            col = col.push(line);
+            i += 1;
+        }
+
+        scrollable(col).height(Length::Fill).into()
+    }
+
+    fn filters(&self) -> iced::Element<'_, DictionaryMessage> {
+        iced::widget::column![
+            text!("Всего слов: {}", self.dict.len()),
+            text!(
+                "Выбрано слов: {}",
+                self.include_map.iter().filter(|i| **i).count()
+            ),
+            self.tags_selector(),
+            toggler(self.reverse).label("Обратный тест").on_toggle(DictionaryMessage::SetReverse),
+            button(text!("Тест").center().width(Length::Fill))
+                .on_press(Test)
+                .width(Length::Fill),
+        ]
+        .width(250)
+        .spacing(10)
+        .into()
+    }
+
+    fn tags_selector(&self) -> iced::Element<'_, DictionaryMessage> {
+        let mut col = Column::new().width(Length::Fill);
+        col = col.push(
+            button("Сбросить")
+                .on_press(DictionaryMessage::ResetTags)
+                .style(|x: &Theme, _status| Style {
+                    background: None,
+                    text_color: x.palette().primary,
+                    border: Border::default(),
+                    shadow: Shadow::default(),
+                    snap: false,
+                }),
+        );
+        for tag in &self.tag_map {
+            col = col.push(
+                checkbox(*tag.1)
+                    .label(tag.0)
+                    .on_toggle(|x1| DictionaryMessage::IncludeTag(tag.0.clone(), x1)),
+            )
+        }
+
+        container(scrollable(col)).height(Length::Fill).into()
+    }
+
+    fn update_tags(&mut self) {
+        let mut tags_list: Vec<String> = vec![];
+        for element in &self.dict {
+            tags_list.append(&mut to_tags_list(element.tags.clone()));
+        }
+
+        let current_tags = self
+            .tag_map
+            .keys()
+            .map(|k| k.clone().to_string())
+            .collect::<Vec<String>>();
+        for current in current_tags {
+            if !tags_list.contains(&current) {
+                self.tag_map.remove(&current.clone());
+            }
+        }
+
+        for found_tag in &tags_list {
+            if !self.tag_map.contains_key(&found_tag.clone()) {
+                self.tag_map.insert(found_tag.clone(), false);
+            }
+        }
+    }
+
+    fn update_words_include(&mut self) {
+        let include_tags = self
+            .tag_map
+            .iter()
+            .filter(|i| *(*i).1)
+            .map(|(t, _)| t.clone())
+            .collect::<Vec<String>>();
+
+        println!("Including include tags: {:?}", include_tags);
+
+        if include_tags.is_empty() {
+            self.include_map.iter_mut().for_each(|x| *x = false);
+            return;
+        }
+
+        for i in 0..self.include_map.len() {
+            let tags = to_tags_list(self.dict[i].tags.clone());
+            if tags.iter().any(|t| include_tags.contains(t)) {
+                self.include_map[i] = true;
+            }
+        }
+    }
+}
+
+fn to_tags_list(ts: String) -> Vec<String> {
+    ts.split(',')
+        .map(|ts| ts.to_lowercase().trim().to_string())
+        .filter(|t| !t.is_empty())
+        .collect::<Vec<String>>()
+}
+
+fn dict_file() -> PathBuf {
+    let mut dir = dirs::data_dir().unwrap();
+    dir.push("jap_learn");
+    if !dir.exists() {
+        fs::create_dir(dir.clone()).unwrap();
+    }
+    dir.push("dict.json");
+    dir
+}

src/dictionary_test.rs

@@ -0,0 +1,148 @@
+use crate::dictionary::DictionaryElement;
+use crate::quiz::Score;
+use crate::Page::PreviousPage;
+use crate::RootMessage;
+use crate::{NavigatedPage, Page};
+use iced::widget::{button, container, row, text, text_input};
+use iced::{alignment, Fill, Task};
+use rand::prelude::SliceRandom;
+
+#[derive(Debug, Clone)]
+pub struct DictionaryQuizState {
+    words: Vec<DictionaryElement>,
+    current_set: Vec<DictionaryElement>,
+    answer: String,
+    view: String,
+    correct: String,
+    score: Score,
+    is_help: bool,
+    reverse: bool,
+}
+#[derive(Debug, Clone)]
+pub enum DictionaryQuizMessage {
+    Next,
+    Back,
+    AnswerChanged(String),
+    SubmitAnswer,
+}
+
+impl NavigatedPage<DictionaryQuizMessage> for DictionaryQuizState {
+    fn navigate(&self, message: &DictionaryQuizMessage) -> Option<Page> {
+        match message {
+            DictionaryQuizMessage::Back => Some(PreviousPage),
+            _ => None,
+        }
+    }
+}
+
+impl DictionaryQuizState {
+    pub fn new(words: Vec<DictionaryElement>, reverse: bool) -> DictionaryQuizState {
+        DictionaryQuizState {
+            words,
+            current_set: Vec::new(),
+            answer: "".to_string(),
+            view: "---".to_string(),
+            correct: "".to_string(),
+            score: Default::default(),
+            is_help: false,
+            reverse: reverse,
+        }
+    }
+
+    pub fn update(&mut self, message: DictionaryQuizMessage) -> Task<RootMessage> {
+        match message {
+            DictionaryQuizMessage::Next => {
+                self.next();
+            }
+            DictionaryQuizMessage::Back => {}
+            DictionaryQuizMessage::AnswerChanged(c) => self.answer = c.clone(),
+            DictionaryQuizMessage::SubmitAnswer => self.submit(),
+        }
+        Task::none()
+    }
+
+    pub fn view(&self) -> iced::Element<'_, DictionaryQuizMessage> {
+        container(
+            iced::widget::column![
+                row![
+                    text!("{}", self.view).size(54),
+                    text!(
+                        "{}",
+                        if self.is_help {
+                            self.correct.clone()
+                        } else {
+                            String::new()
+                        }
+                    ),
+                ]
+                .align_y(alignment::Vertical::Center)
+                .spacing(20),
+                text_input("Перевод", &self.answer)
+                    .size(28)
+                    .width(150)
+                    .on_input(DictionaryQuizMessage::AnswerChanged)
+                    .on_submit(DictionaryQuizMessage::SubmitAnswer),
+                row![
+                    text!("{}", self.score.total.to_string()).size(25),
+                    text!("{}", self.score.correct.to_string())
+                        .size(25)
+                        .color(iced::Color::from_rgb8(60, 170, 60)),
+                    text!("{}", self.score.fail.to_string())
+                        .color(iced::Color::from_rgb8(255, 79, 0))
+                        .size(25),
+                ]
+                .spacing(10),
+                button("Закончить").on_press(DictionaryQuizMessage::Back),
+            ]
+            .spacing(10)
+            .align_x(alignment::Horizontal::Center),
+        )
+        .center_y(Fill)
+        .center_x(Fill)
+        .into()
+    }
+    fn next(&mut self) {}
+
+    fn submit(&mut self) {
+        if self.view == "---" {
+            self.show_next();
+            return;
+        }
+
+        if !self.is_help {
+            self.score.total += 1;
+        }
+        if self.answer == self.correct {
+            if self.is_help == false {
+                self.score.correct += 1;
+            }
+            self.show_next()
+        } else {
+            self.score.fail += 1;
+            self.is_help = true;
+        }
+    }
+
+    fn update_set(&mut self) {
+        self.current_set.append(&mut self.words.clone());
+        self.current_set.shuffle(&mut rand::rng())
+    }
+
+    fn show_next(&mut self) {
+        self.is_help = false;
+        self.answer = String::new();
+
+        if self.current_set.is_empty() {
+            self.update_set();
+        }
+
+        let next = self.current_set.pop().unwrap();
+        if self.reverse {
+            self.view = next.value.clone();
+            self.correct = next.key.clone();
+        } else {
+            self.view = next.key.clone();
+            self.correct = next.value.clone();
+        }
+    }
+}

src/main.rs

@@ -3,14 +3,18 @@ mod lang;
 mod quiz;
 mod selector;
 mod writing;
+mod dictionary;
+mod dictionary_test;
 
 use crate::quiz::*;
 use crate::selector::*;
 use crate::writing::{WritingMessage, WritingState};
-use crate::Page::{Quiz, Selector, Writing};
+use crate::Page::{Dictionary, DictionaryQuiz, Quiz, Selector, Writing};
 use iced::widget::text;
 use iced::Task;
 use iced::Element;
+use crate::dictionary::{DictionaryMessage, DictionaryState};
+use crate::dictionary_test::{DictionaryQuizMessage, DictionaryQuizState};
 
 fn main() -> iced::Result {
     iced::application(ScreenState::boot, ScreenState::update, ScreenState::view)
@@ -22,12 +26,16 @@ pub enum RootMessage {
     Selector(SelectorMessage),
     Quiz(QuizMessage),
     Writing(WritingMessage),
+    Dictionary(DictionaryMessage),
+    DictionaryQuiz(DictionaryQuizMessage),
 }
 
 enum Page {
     Selector(SelectorState),
     Quiz(QuizState),
     Writing(WritingState),
+    Dictionary(DictionaryState),
+    DictionaryQuiz(DictionaryQuizState),
     PreviousPage,
 }
 
@@ -53,12 +61,13 @@ impl ScreenState {
     pub fn boot() -> (ScreenState, Task<RootMessage>){
         (ScreenState::default(), Task::none())
     }
-    pub fn update(&mut self, message: RootMessage) {
+    pub fn update(&mut self, message: RootMessage)  -> Task<RootMessage> {
-        state_update!(message, self.stack, Selector, Quiz, Writing);
+        state_update!(message, self.stack, Selector, Quiz, Writing, Dictionary, DictionaryQuiz);
+        Task::none()
     }
 
     pub fn view(&self) -> Element<'_, RootMessage> {
-        view_navigation!(self.stack, Quiz, Selector, Writing)
+        view_navigation!(self.stack, Quiz, Selector, Writing, Dictionary, DictionaryQuiz)
     }
 }
 
@@ -95,11 +104,11 @@ macro_rules! message_navigation {
         if let Some(new_page) = $state.navigate(&$msg) {
             if let Page::PreviousPage = new_page {
                 $stack.pop();
-                return;
+                return Task::none();
             }
             $stack.push(new_page);
         } else {
-            $state.update($msg);
+            return $state.update($msg);
         }
     };
 }

src/quiz.rs

@@ -1,8 +1,8 @@
 use crate::lang::KanaSet;
 use crate::Page::PreviousPage;
-use crate::{NavigatedPage, Page};
+use crate::{NavigatedPage, Page, RootMessage};
 use iced::widget::*;
-use iced::{alignment, Element, Fill};
+use iced::{alignment, Element, Fill, Task};
 use rand::seq::SliceRandom;
 
 #[derive(Clone, Debug)]
@@ -51,14 +51,14 @@ impl Default for QuizState {
 }
 
 impl QuizState {
-    pub fn update(&mut self, message: QuizMessage) {
+    pub fn update(&mut self, message: QuizMessage) -> Task<RootMessage> {
         match message {
             QuizMessage::ContentChanged(content) => {
                 if content.contains("`") {
                     self.is_help = true;
                     self.score.fail += 1;
 
-                    return;
+                    return Task::none();
                 }
                 self.current_roman = content;
                 if self.correct_roman == self.current_roman {
@@ -77,6 +77,7 @@ impl QuizState {
             }
             QuizMessage::Back => todo!(),
         }
+        Task::none()
     }
 
     fn update_showed(&mut self) {
@@ -144,7 +145,7 @@ pub enum QuizMessage {
 
 #[derive(Default, Debug, Clone)]
 pub struct Score {
-    total: i32,
+    pub(crate) total: i32,
-    correct: i32,
+    pub(crate) correct: i32,
-    fail: i32,
+    pub(crate) fail: i32,
 }

src/selector.rs

@@ -2,9 +2,10 @@ use crate::lang::{KanaSet, KanaType};
 use crate::selector::SelectorMessage::ChangeMode;
 use crate::writing::WritingState;
 use crate::Page::{Quiz, Writing};
-use crate::{NavigatedPage, Page, QuizState};
+use crate::{NavigatedPage, Page, QuizState, RootMessage};
 use iced::widget::*;
-use iced::{alignment, Element};
+use iced::{alignment, Element, Task};
+use crate::dictionary::DictionaryState;
 
 pub struct SelectorState {
     pub set: KanaSet,
@@ -26,6 +27,7 @@ pub enum SelectorMessage {
     Goto,
     Check(usize, bool),
     ChangeMode(bool),
+    ToDictionary,
 }
 
 impl NavigatedPage<SelectorMessage> for SelectorState {
@@ -40,27 +42,32 @@ impl NavigatedPage<SelectorMessage> for SelectorState {
                 Some(Quiz(quiz))
             };
         }
+        if let SelectorMessage::ToDictionary = message {
+            return Some(Page::Dictionary(DictionaryState::default()))
+        }
         None
     }
 }
 
 impl SelectorState {
-    pub fn update(&mut self, message: SelectorMessage) {
+    pub fn update(&mut self, message: SelectorMessage)  -> Task<RootMessage> {
         match message {
             SelectorMessage::Change => match self.set.chars_type {
                 KanaType::Katakana => self.set = KanaSet::hiragana(),
                 KanaType::Hiragana => self.set = KanaSet::katakana(),
             },
-            SelectorMessage::Goto => {}
             SelectorMessage::Check(i, b) => self.set.include_map[i] = b,
             ChangeMode(b) => self.is_writing = b,
+            _ => {}
         }
+        Task::none()
     }
 
     pub fn view(&self) -> Element<'_, SelectorMessage> {
         container(
             iced::widget::column![
-                button("Переключить").on_press(SelectorMessage::Change),
+                row![button("Переключить азбуки").on_press(SelectorMessage::Change),
+                button("Словарь").on_press(SelectorMessage::ToDictionary),].spacing(10),
                 self.rows_selector(),
                 toggler(self.is_writing)
                     .label("Режим письма")
@@ -85,10 +92,7 @@ impl SelectorState {
 
             for v in &self.set.dictionary[i] {
                 chars_column = chars_column.push(
-                    container(
+                    container(text!("{}", v.0.clone().to_uppercase()).size(36))
-                        text!("{}", v.0.clone().to_uppercase())
-                            .size(36),
-                    )
                         .padding(20)
                         .style(container::rounded_box),
                 );

src/writing.rs

@@ -1,8 +1,8 @@
 use crate::lang::KanaSet;
 use crate::Page::PreviousPage;
-use crate::{NavigatedPage, Page};
+use crate::{NavigatedPage, Page, RootMessage};
 use iced::widget::*;
-use iced::{alignment, Element, Fill};
+use iced::{alignment, Element, Fill, Task};
 use rand::seq::SliceRandom;
 
 #[derive(Clone, Debug)]
@@ -43,12 +43,13 @@ impl WritingState {
 }
 
 impl WritingState {
-    pub fn update(&mut self, message: WritingMessage) {
+    pub fn update(&mut self, message: WritingMessage) -> Task<RootMessage>  {
         match message {
             WritingMessage::Back => todo!(),
             WritingMessage::Next => self.next(),
             WritingMessage::SwitchShowMode(b) => self.show_all = b,
         }
+        Task::none()
     }
 
     fn next(&mut self) {