ontv 0.1.3

A rich desktop application for tracking tv shows
Documentation 
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use serde::{Deserialize, Serialize};

use crate::prelude::*;

#[derive(Default, Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
#[serde(rename_all = "kebab-case")]
pub(crate) struct State {
    future: bool,
}

#[derive(Debug, Clone)]
pub(crate) enum Message {
    Future(usize, comps::episode::Message),
    Episode(usize, comps::episode::Message),
    ToggleFuture(bool),
}

#[derive(Default)]
pub(crate) struct WatchNext {
    future: Vec<comps::Episode>,
    episodes: Vec<comps::Episode>,
}

impl WatchNext {
    pub(crate) fn prepare(&mut self, cx: &mut Ctxt<'_>, state: &State) {
        let today = cx.state.today();

        if state.future {
            let future = cx.service.pending().rev().filter(|p| p.will_air(today));

            self.future
                .init_from_iter(future.map(|p| comps::episode::Props {
                    include_series: true,
                    episode_id: p.episode.id,
                    watched: cx.service.watched(&p.episode.id),
                }));
        } else {
            self.future.clear();
        }

        let episodes = cx.service.pending().rev().filter(|p| p.has_aired(today));

        self.episodes
            .init_from_iter(episodes.map(|p| comps::episode::Props {
                include_series: true,
                episode_id: p.episode.id,
                watched: cx.service.watched(&p.episode.id),
            }));

        for e in self.future.iter_mut().chain(&mut self.episodes) {
            e.prepare(cx);
        }
    }

    pub(crate) fn update(&mut self, cx: &mut Ctxt<'_>, state: &mut State, message: Message) {
        match message {
            Message::Future(index, m) => {
                if let Some(c) = self.future.get_mut(index) {
                    c.update(cx, m);
                }
            }
            Message::Episode(index, m) => {
                if let Some(c) = self.episodes.get_mut(index) {
                    c.update(cx, m);
                }
            }
            Message::ToggleFuture(value) => {
                state.future = value;
            }
        }
    }

    pub(crate) fn view(
        &self,
        cx: &CtxtRef<'_>,
        state: &State,
    ) -> Result<Element<'static, Message>> {
        let mut list = w::Column::new();

        list = list.push(w::vertical_space(Length::Shrink));

        list = list.push(centered(
            w::text("Watch next").size(TITLE_SIZE).width(Length::Fill),
            None,
        ));

        let mut options = w::Row::new();

        options = options.push(centered(
            w::Row::new()
                .push(w::checkbox(
                    "Show future episodes",
                    state.future,
                    Message::ToggleFuture,
                ))
                .width(Length::Fill),
            None,
        ));

        list = list.push(options.width(Length::Fill));

        if !self.future.is_empty() {
            list = list.push(centered(
                w::text("Future episodes:")
                    .size(SUBTITLE_SIZE)
                    .width(Length::Fill),
                None,
            ));

            for (index, episode) in self.future.iter().enumerate() {
                list = list.push(
                    centered(
                        episode
                            .view(cx, true)?
                            .map(move |m| Message::Future(index, m)),
                        Some(style::weak),
                    )
                    .padding(GAP),
                );
            }
        }

        if !self.episodes.is_empty() {
            list = list.push(centered(
                w::text("Available episodes:")
                    .size(SUBTITLE_SIZE)
                    .width(Length::Fill),
                None,
            ));

            for (index, episode) in self.episodes.iter().enumerate() {
                list = list.push(
                    centered(
                        episode
                            .view(cx, true)?
                            .map(move |m| Message::Episode(index, m)),
                        Some(style::weak),
                    )
                    .padding(GAP),
                );
            }
        }

        Ok(w::Column::new()
            .push(list.spacing(GAP2))
            .width(Length::Fill)
            .spacing(GAP2)
            .into())
    }
}