eureka-manager-cli 0.3.0

use std::{fs::File, io::BufReader, path::PathBuf};

use actix::Addr;
use clap::{Args, ValueEnum};
use eureka_mmanager::{
    download::{
        chapter::{task::DownloadMode, ChapterDownloadMessage},
        cover::CoverDownloadMessage,
        manga::MangaDownloadMessage,
        state::DownloadMessageState,
    },
    history::service::messages::is_in::IsInMessage,
    prelude::*,
};
use indicatif::ProgressBar;
use log::{info, trace};
use mangadex_api_types_rust::RelationshipType;
use uuid::Uuid;

use crate::commands::{AsyncRun, AsyncRunContext};

#[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Clone, Copy, Hash, ValueEnum, Default)]
pub enum ChapterDownloadMode {
    /// the default download mode
    #[default]
    Data,
    /// the economic mode
    DataSaver,
}

impl From<ChapterDownloadMode> for DownloadMode {
    fn from(value: ChapterDownloadMode) -> Self {
        match value {
            ChapterDownloadMode::Data => Self::Normal,
            ChapterDownloadMode::DataSaver => Self::DataSaver,
        }
    }
}

#[derive(Debug, Args)]
pub struct ChapterDownloadArgs {
    /// Manga ids
    #[arg(long = "id")]
    pub ids: Vec<Uuid>,
    #[arg(long)]
    pub id_text_file: Vec<PathBuf>,
    #[arg(short, long)]
    pub mode: ChapterDownloadMode,
}

impl ChapterDownloadArgs {
    pub fn get_id_and_modes(&self) -> Vec<(Uuid, ChapterDownloadMode)> {
        let mut res = Vec::new();
        let mut push_res = |value: (Uuid, ChapterDownloadMode)| {
            res.push(value);
        };

        self.ids
            .iter()
            .map(|id| (*id, self.mode))
            .for_each(&mut push_res);

        self.id_text_file
            .iter()
            .map(|e| (e, File::open(e)))
            .flat_map(|(path, res)| match res {
                Ok(file) => Some(id_list_txt_reader::IdListTxtReader::new(BufReader::new(
                    file,
                ))),
                Err(err) => {
                    log::error!("Cannot open the {} file: {}", path.to_string_lossy(), err);
                    None
                }
            })
            .flat_map(|reader| {
                reader.flat_map(|entry| -> Option<(Uuid, ChapterDownloadMode)> {
                    if entry.contains(';') {
                        let mut split = entry.split(';');
                        let id: Uuid = split.next()?.parse().ok()?;
                        let mode = split
                            .next()
                            .and_then(|part| ChapterDownloadMode::from_str(part, true).ok())
                            .unwrap_or(self.mode);
                        Some((id, mode))
                    } else {
                        Some((entry.parse().ok()?, self.mode))
                    }
                })
            })
            .for_each(&mut push_res);
        res
    }
}

impl AsyncRun for ChapterDownloadArgs {
    async fn run(&self, ctx: AsyncRunContext) -> anyhow::Result<()> {
        let ids = self.get_id_and_modes();
        let mut progress = ProgressBar::new(ids.len() as u64);
        progress = ctx.progress.add(progress);
        trace!(
            "Downloading {} chapters with their titles and cover if needed",
            ids.len()
        );
        for (id, mode) in ids {
            let manager = ctx.manager.clone();
            let task = async move {
                trace!("Downloading chapter {id}");
                let dirs =
                    <Addr<DownloadManager> as GetManagerStateData>::get_dir_options(&manager)
                        .await?;
                let manga = {
                    let chapter_manager = <Addr<DownloadManager> as GetManager<
                        ChapterDownloadManager,
                    >>::get(&manager)
                    .await?;
                    let mut task = chapter_manager
                        .send(
                            ChapterDownloadMessage::new(id)
                                .state(DownloadMessageState::Downloading)
                                .mode(mode),
                        )
                        .await?;
                    let data = task.wait().await?.await?;
                    info!(
                        "downloaded chapter {} = {:?}",
                        data.id, data.attributes.title
                    );
                    data.find_first_relationships(RelationshipType::Manga)
                        .ok_or(anyhow::Error::msg(format!(
                            "Cannot find the chapter {id} title"
                        )))?
                        .clone()
                };
                if !dirs
                    .send(IsInMessage(HistoryEntry::new(
                        manga.id,
                        RelationshipType::Manga,
                    )))
                    .await?
                {
                    let cover = {
                        trace!("Downloading title {}", manga.id);
                        let manga_manager = <Addr<DownloadManager> as GetManager<
                            MangaDownloadManager,
                        >>::get(&manager)
                        .await?;
                        let mut task = manga_manager
                            .send(
                                MangaDownloadMessage::new(manga.id)
                                    .state(DownloadMessageState::Downloading),
                            )
                            .await?;
                        let data = task.wait().await?.await?;
                        info!(
                            "downloaded title {} = {:?}",
                            data.id,
                            data.attributes.title.values().next()
                        );
                        data.find_first_relationships(RelationshipType::CoverArt)
                            .ok_or(anyhow::Error::msg(format!(
                                "Cannot find the title {} cover art",
                                manga.id
                            )))?
                            .clone()
                    };
                    if !dirs
                        .send(IsInMessage(HistoryEntry::new(
                            cover.id,
                            RelationshipType::CoverArt,
                        )))
                        .await?
                    {
                        trace!("Downloading {} cover art", cover.id);
                        let cover_manager = <Addr<DownloadManager> as GetManager<
                            CoverDownloadManager,
                        >>::get(&manager)
                        .await?;
                        let mut task = cover_manager
                            .send(
                                CoverDownloadMessage::new(cover.id)
                                    .state(DownloadMessageState::Downloading),
                            )
                            .await?;
                        task.wait().await?.await?;
                        info!("Downloaded {} cover art", cover.id);
                    }
                }
                Ok::<_, anyhow::Error>(())
            };
            let res = task.await;

            if let Err(err) = res {
                log::error!("{err}");
            }
            progress.inc(1);
        }
        progress.finish();
        ctx.progress.remove(&progress);
        Ok(())
    }
}