Exams page more code

sql/exam_entry.sql

@@ -1,7 +1,7 @@
-create table exam_entry
+create table exam_entries
 (
     id      integer primary key,
-    exam_id integer not null references exam on delete cascade,
+    exam_id integer not null references exams on delete cascade,
     word_id integer not null references words on delete cascade,
     status integer default null
 );

src/data_provider/exam.rs

@@ -64,19 +64,19 @@ pub struct ExamEntryQuerySet;
 
 impl TableAccessQuerySet<ExamEntry> for ExamEntryQuerySet {
     fn load() -> &'static str {
-        "SELECT id, exam_id, word_id, status FROM exam_entry"
+        "SELECT id, exam_id, word_id, status FROM exam_entries"
     }
 
     fn save() -> &'static str {
-        "UPDATE exam_entry set status = $1 WHERE id = $2"
+        "UPDATE exam_entries set status = $1 WHERE id = $2"
     }
 
     fn add() -> &'static str {
-        "INSERT into exam_entry (exam_id, word_id, status) VALUES ($1, $2, $3)"
+        "INSERT into exam_entries (exam_id, word_id, status) VALUES ($1, $2, $3)"
     }
 
     fn name() -> &'static str {
-        "exam_entry"
+        "exam_entries"
     }
 
     fn from_sql(row: &Row) -> Result<ExamEntry, Error> {

src/navigation.rs

@@ -1,4 +1,4 @@
-use crate::app::{AppState, fill_state};
+use crate::app::{fill_state, AppState};
 use crate::data_provider::sqlite::create_db;
 use crate::data_provider::web_api::{
     get_local_version, get_web_version, load_data, set_local_version,
@@ -12,6 +12,7 @@ use crate::notification::{
 };
 use crate::pages::dictionary::{DictionaryMessage, DictionaryState};
 use crate::pages::dictionary_quiz::{DictionaryQuizMessage, DictionaryQuizState};
+use crate::pages::exams::{ExamsMessage, ExamsState};
 use crate::pages::history::{HistoryMessage, HistoryState};
 use crate::pages::import::{ImportMessage, ImportState};
 use crate::pages::quiz::{QuizMessage, QuizState};
@@ -59,6 +60,7 @@ pub enum RootMessage {
     History(HistoryMessage),
     RepetitionSettings(RepetitionSettingsMessage),
     Import(ImportMessage),
+    Exams(ExamsMessage),
     Keyboard(Event),
     PushNotification(NotificationRequest),
     Notification(NotificationMessage),
@@ -80,6 +82,7 @@ pub enum Page {
     History(HistoryState),
     RepetitionSettings(RepetitionSettingsState),
     Import(ImportState),
+    Exams(ExamsState),
     PreviousPage,
 }
 
@@ -182,7 +185,8 @@ impl ScreenState {
                 Sync,
                 History,
                 RepetitionSettings,
-                Import
+                Import,
+                Exams
             );
         }
         debug!("Update took {:?}", time.elapsed());
@@ -205,7 +209,8 @@ impl ScreenState {
             Sync,
             History,
             RepetitionSettings,
-            Import
+            Import,
+            Exams
         )
     }
 
@@ -225,7 +230,8 @@ impl ScreenState {
             Sync,
             History,
             RepetitionSettings,
-            Import
+            Import,
+            Exams
         );
 
         let notifications = self.notification_manager.draw().map(Notification);

src/pages.rs

@@ -11,3 +11,4 @@ pub mod selector;
 pub mod sync;
 pub mod word;
 pub mod writing;
+pub mod exams;

src/pages/exams.rs

@@ -0,0 +1,359 @@
+use crate::app::AppState;
+use crate::data::entities::{DeckSettings, EntityHandle, Exam, ExamEntry};
+use crate::data::repositories::{BatchedRepository, Repository};
+use crate::data::Id;
+use crate::navigation::Page::PreviousPage;
+use crate::navigation::{NavigatedPage, Page, RootMessage};
+use crate::notification::MaybeError;
+use crate::pages::exams::ExamsMessage::*;
+use crate::pages::repetitions::Style;
+use crate::push_error;
+use crate::styling::{back_overlay, BUTTON_RADIUS, DEFAULT_SPACING, HALF_SPACING};
+use crate::{jl_button, push_error_task};
+use chrono::Utc;
+use iced::widget::button::Status;
+use iced::widget::{
+    button, center_x, column, container, row, scrollable, space, text, tooltip, Column,
+};
+use iced::{Element, Task};
+use iced_core::Alignment::*;
+use iced_core::Length::{Fill, FillPortion};
+use iced_core::{Background, Border, Color, Shadow, Theme};
+use std::collections::BTreeMap;
+use std::ops::{Deref, DerefMut};
+use std::sync::Arc;
+
+pub struct ExamsState {
+    state: AppState,
+    deck_id: EntityHandle<DeckSettings>,
+    deck: DeckSettings,
+    selected_exam_id: Option<EntityHandle<Exam>>,
+    exams: BTreeMap<EntityHandle<Exam>, ExamExtended>,
+}
+
+#[derive(Clone, Eq, PartialEq)]
+pub enum ExamsMessage {
+    Back,
+    SelectExam(EntityHandle<Exam>),
+    DeleteExam(EntityHandle<Exam>),
+    CreateExam,
+    GotoExam,
+}
+
+impl NavigatedPage<ExamsMessage> for ExamsState {
+    fn navigate(&mut self, message: &ExamsMessage) -> Option<Page> {
+        if let Back = message {
+            return Some(PreviousPage);
+        }
+        if let Some(selected_exam_id) = self.selected_exam_id
+            && GotoExam == *message
+        {
+            return Some(PreviousPage);
+        }
+        None
+    }
+
+    fn navigated(&mut self) {}
+
+    fn update(&mut self, message: ExamsMessage) -> Task<RootMessage> {
+        match message {
+            Back => {}
+            GotoExam => {}
+            SelectExam(id) => {
+                self.selected_exam_id = Some(id);
+            }
+            DeleteExam(id) => {
+                self.selected_exam_id = None;
+            }
+            CreateExam => {
+                let exam = Exam {
+                    id: Default::default(),
+                    timestamp: Utc::now(),
+                    deck_id: self.deck_id.id,
+                };
+                let mut exam_repo = self.state.exam.write();
+                let handle = exam_repo.create_now(exam);
+                if let Ok(handle) = handle {
+                    drop(exam_repo);
+                    if let Err(err) = self.append_exam_entries(handle) {
+                        return push_error_task!(err);
+                    }
+                    self.exams = Self::get_exams_list(&self.state, self.deck_id.id);
+                    self.selected_exam_id = Some(handle);
+                } else {
+                    return push_error_task!(handle.err().unwrap());
+                }
+            }
+        }
+
+        Task::none()
+    }
+
+    fn view(&self) -> Element<'_, ExamsMessage> {
+        back_overlay(
+            column![
+                text(format!("Экзамены для колоды {}", self.deck.name)),
+                row![row![
+                    column![
+                        scrollable(self.exams_list()).height(Fill),
+                        jl_button!("Добавить").width(Fill).on_press(CreateExam),
+                    ]
+                    .spacing(DEFAULT_SPACING)
+                    .width(FillPortion(1)),
+                    self.selected_exam_view(),
+                ]]
+            ]
+            .into(),
+            Back,
+        )
+    }
+}
+
+impl ExamsState {
+    pub fn new(deck_id: EntityHandle<DeckSettings>, state: AppState) -> Self {
+        let deck = state.decks.read().get_static(deck_id).unwrap();
+
+        Self {
+            exams: Self::get_exams_list(&state, deck_id.id),
+            state,
+            deck_id,
+            deck,
+            selected_exam_id: None,
+        }
+    }
+
+    fn selected_exam(&self) -> Option<&ExamExtended> {
+        self.exams.get(&self.selected_exam_id?)
+    }
+    fn selected_exam_mut(&mut self) -> Option<&mut ExamExtended> {
+        self.exams.get_mut(&self.selected_exam_id?)
+    }
+
+    fn append_exam_entries(&mut self, handle: EntityHandle<Exam>) -> MaybeError {
+        let deck_id = self.deck_id.id;
+        let words: Vec<_> = self
+            .state
+            .card_states
+            .read()
+            .iter()
+            .filter(|state| state.deck_id == deck_id)
+            .map(|state| state.word_id)
+            .collect();
+        let mut entries = words
+            .iter()
+            .map(|word_id| ExamEntry {
+                id: Default::default(),
+                exam_id: handle.id,
+                word_id: *word_id,
+                status: None,
+            })
+            .collect::<Vec<_>>();
+
+        self.state
+            .exam_entries
+            .write()
+            .create_now_many(entries.as_mut_slice())?;
+
+        Ok(())
+    }
+
+    fn get_exams_list(state: &AppState, deck_id: Id) -> BTreeMap<EntityHandle<Exam>, ExamExtended> {
+        let mut query = state
+            .exam
+            .read()
+            .query(Arc::new(move |exam| exam.deck_id == deck_id));
+        let handles: Vec<_> = query.handles().collect();
+        query
+            .iter(&state.exam.read())
+            .cloned()
+            .zip(handles)
+            .map(|(e, h)| (h, ExamExtended::from(e, &state)))
+            .collect()
+    }
+}
+
+impl ExamsState {
+    pub fn exams_list(&self) -> Column<'_, ExamsMessage> {
+        let mut column = Column::new();
+
+        for (handle, deck) in self.exams.iter() {
+            column = column.push(
+                button(text!("{}", &deck.timestamp.format("%d/%m/%Y %H:%M")))
+                    .on_press_with(move || SelectExam(*handle))
+                    .style(move |_x: &Theme, status: Status| Style {
+                        background: if status == Status::Hovered {
+                            Some(Background::Color(Color::WHITE.scale_alpha(0.2)))
+                        } else {
+                            None
+                        },
+                        text_color: _x.palette().primary,
+                        border: Border {
+                            color: Default::default(),
+                            width: 0.0,
+                            radius: BUTTON_RADIUS.into(),
+                        },
+                        shadow: Shadow::default(),
+                        snap: false,
+                    }),
+            );
+        }
+
+        column
+    }
+    pub fn selected_exam_view(&self) -> Element<'_, ExamsMessage> {
+        if let Some(exam) = self.selected_exam() {
+            return column![
+                center_x(text!(
+                    "Экзамен от {}",
+                    exam.timestamp.format("%d/%m/%Y %H:%M")
+                )),
+                row![text!("{} карточек", exam.total), Self::exam_bar(exam)]
+                    .height(30)
+                    .align_y(Center)
+                    .width(Fill).spacing(HALF_SPACING),
+                self.exam_variable_view(exam),
+            ]
+            .spacing(DEFAULT_SPACING)
+            .width(FillPortion(2))
+            .into();
+        }
+
+        space().width(FillPortion(3)).into()
+    }
+
+    fn exam_bar(exam: &ExamExtended) -> Element<'_, ExamsMessage> {
+        let total = 1000.0;
+        let answered = exam.answered as f64 / exam.total as f64 * total;
+        let unknown = exam.unknown as f64 / exam.total as f64 * total;
+        let remaining = exam.remaining() as f64 / exam.total as f64 * total;
+        row![
+            tooltip(
+                container(space())
+                    .height(Fill)
+                    .width(FillPortion(answered as u16))
+                .style(|theme: &Theme| {
+                        container::Style {
+                            background: Some(Background::Color(theme.palette().success)),
+                            text_color: Default::default(),
+                            border: Default::default(),
+                            shadow: Default::default(),
+                            snap: false,
+                        }
+                    }),
+                text!("Правильно: {}%", answered / 10.0),
+                tooltip::Position::Bottom
+            ),
+            tooltip(
+                container(space())
+                    .height(Fill)
+                    .width(FillPortion(unknown as u16))
+                .style(|theme: &Theme| {
+                        container::Style {
+                            background: Some(Background::Color(theme.palette().danger)),
+                            text_color: Default::default(),
+                            border: Default::default(),
+                            shadow: Default::default(),
+                            snap: false,
+                        }
+                    }),
+                text!("Не получилось: {}%", unknown / 10.0),
+                tooltip::Position::Bottom
+            ),
+            tooltip(
+                container(space())
+                    .height(Fill)
+                    .width(FillPortion(remaining as u16))
+                    .style(|theme: &Theme| {
+                        container::Style {
+                            background: Some(Background::Color(theme.palette().primary)),
+                            text_color: Default::default(),
+                            border: Default::default(),
+                            shadow: Default::default(),
+                            snap: false,
+                        }
+                    }),
+                text!("Осталось {}%", remaining / 10.0),
+                tooltip::Position::Bottom
+            )
+        ]
+        .width(Fill)
+        .height(Fill)
+        .into()
+    }
+
+    fn exam_variable_view(&self, exam: &ExamExtended) -> Element<'_, ExamsMessage> {
+        if exam.finished() {
+            self.exam_finished_view(exam)
+        } else {
+            self.exam_ongoing_view(exam)
+        }
+    }
+
+    fn exam_finished_view(&self, exam: &ExamExtended) -> Element<'_, ExamsMessage> {
+        column![].spacing(DEFAULT_SPACING).into()
+    }
+
+    fn exam_ongoing_view(&self, exam: &ExamExtended) -> Element<'_, ExamsMessage> {
+        center_x(button("Продолжить экзамен").on_press(GotoExam)).into()
+    }
+}
+
+struct ExamExtended {
+    exam: Exam,
+    total: u32,
+    answered: u32,
+    unknown: u32,
+}
+
+impl ExamExtended {
+    fn from(exam: Exam, state: &AppState) -> Self {
+        let entries = state.exam_entries.read();
+        let mut total = 0;
+        let mut answered = 0;
+        let mut unknown = 0;
+        entries.iter().filter(|e| e.exam_id == e.id).for_each(|e| {
+            total += 1;
+            match e.status {
+                None => {}
+                Some(s) => {
+                    if s {
+                        answered += 1;
+                    } else {
+                        unknown += 1;
+                    }
+                }
+            }
+        });
+        Self {
+            exam,
+
+            total,
+            answered,
+            unknown,
+        }
+    }
+    fn solved(&self) -> u32 {
+        self.answered + self.unknown
+    }
+
+    fn finished(&self) -> bool {
+        self.solved() == self.total
+    }
+
+    fn remaining(&self) -> u32 {
+        self.total - self.solved()
+    }
+}
+
+impl Deref for ExamExtended {
+    type Target = Exam;
+    fn deref(&self) -> &Self::Target {
+        &self.exam
+    }
+}
+
+impl DerefMut for ExamExtended {
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        &mut self.exam
+    }
+}

src/pages/repetitions.rs

@@ -3,9 +3,10 @@ use crate::core::deck::DeckData;
 use crate::core::srs::{AppendMode, OrderMode};
 use crate::data::entities::{CardState, DeckSettings, EntityHandle, WordData};
 use crate::data::repositories::{BatchedRepository, Repository};
-use crate::navigation::Page::{History, PreviousPage, Repetition, RepetitionSettings};
+use crate::navigation::Page::{Exams, History, PreviousPage, Repetition, RepetitionSettings};
 use crate::navigation::{NavigatedPage, Page, RootMessage};
 use crate::notification::MaybeError;
+use crate::pages::exams::ExamsState;
 use crate::pages::history::HistoryState;
 use crate::pages::repetition::RepetitionState;
 use crate::pages::repetition_settings::RepetitionSettingsState;
@@ -16,17 +17,16 @@ use crate::styling::*;
 use crate::{jl_button, jl_text_input};
 use chrono::{Days, Local, Utc};
 use hashbrown::HashSet;
+use iced::widget::button::{danger, Status};
 pub use iced::widget::button::{Catalog, Style};
-use iced::widget::button::{Status, danger};
 use iced::widget::tooltip::Position::Top;
 use iced::widget::{
-    Column, Row, button, column, container, lazy, radio, row, scrollable, space, svg, text,
+    button, column, container, lazy, radio, row, scrollable, space, svg, text, tooltip, Column, Row,
-    text_input, tooltip,
 };
 use iced::{Background, Border, Center, Color, Element, Fill, Length, Shadow, Task, Theme};
-use iced_core::Padding;
 use iced_core::border::Radius;
 use iced_core::svg::Handle;
+use iced_core::Padding;
 use std::collections::BTreeMap;
 use std::ops::Deref;
 use std::sync::Arc;
@@ -74,7 +74,10 @@ impl NavigatedPage<RepetitionsMessage> for RepetitionsState {
                 self.selected_deck_handle.unwrap(),
                 self.state.clone(),
             )))
-        } else {
+        } else if let GoToExams = message {
+            Some(Exams(ExamsState::new(self.selected_deck_handle.unwrap(), self.state.clone())))
+        } else
+        {
             None
         }
     }
@@ -219,6 +222,7 @@ impl NavigatedPage<RepetitionsMessage> for RepetitionsState {
                     return push_error_task!(err);
                 }
             }
+            GoToExams => {}
         }
         Task::none()
     }
@@ -355,7 +359,10 @@ impl RepetitionsState {
                                         Some(deck.open_mode),
                                         SetOpenMode
                                     ),
-                                    jl_button!("История").on_press(GoToHistory),
+                                    row![
+                                        jl_button!("История").on_press(GoToHistory),
+                                        jl_button!("Экзамены").on_press(GoToExams),
+                                    ].spacing(DEFAULT_SPACING),
                                 ]
                                 .spacing(HALF_SPACING)
                             }
@@ -630,6 +637,7 @@ pub enum RepetitionsMessage {
     SetOpenMode(OrderMode),
     SetAppendMode(AppendMode),
     GoToHistory,
+    GoToExams,
     GoToSettings,
     AppendWords(usize),
 }