refactor: continue

apps/recorder/src/extract/mikan/mod.rs

@@ -23,11 +23,11 @@ pub use subscription::{
     MikanBangumiSubscription, MikanSeasonSubscription, MikanSubscriberSubscription,
 };
 pub use web::{
-    MikanBangumiHomepageUrlMeta, MikanBangumiIndexHomepageUrlMeta, MikanBangumiIndexMeta,
+    MikanBangumiHash, MikanBangumiIndexHash, MikanBangumiIndexMeta, MikanBangumiMeta,
-    MikanBangumiMeta, MikanBangumiPosterMeta, MikanEpisodeHomepageUrlMeta, MikanEpisodeMeta,
+    MikanBangumiPosterMeta, MikanEpisodeHash, MikanEpisodeMeta, MikanSeasonFlowUrlMeta,
-    MikanSeasonFlowUrlMeta, MikanSeasonStr, build_mikan_bangumi_expand_subscribed_url,
+    MikanSeasonStr, build_mikan_bangumi_expand_subscribed_url, build_mikan_bangumi_homepage_url,
-    build_mikan_bangumi_homepage_url, build_mikan_episode_homepage_url,
+    build_mikan_episode_homepage_url, build_mikan_season_flow_url,
-    build_mikan_season_flow_url, extract_mikan_bangumi_index_meta_list_from_season_flow_fragment,
+    extract_mikan_bangumi_index_meta_list_from_season_flow_fragment,
     extract_mikan_bangumi_meta_from_expand_subscribed_fragment,
     extract_mikan_episode_meta_from_episode_homepage_html,
     scrape_mikan_bangumi_meta_from_bangumi_homepage_url,

apps/recorder/src/extract/mikan/rss.rs

@@ -1,18 +1,11 @@
 use std::borrow::Cow;
 
-use bytes::Bytes;
 use chrono::DateTime;
 use downloader::bittorrent::defs::BITTORRENT_MIME_TYPE;
-use fetch::{FetchError, IntoUrl, bytes::fetch_bytes};
-use itertools::Itertools;
 use serde::{Deserialize, Serialize};
-use tracing::instrument;
 use url::Url;
 
-use crate::{
+use crate::{errors::app_error::RecorderError, extract::mikan::MikanEpisodeHash};
-    errors::app_error::{RecorderError, RecorderResult},
-    extract::mikan::{MikanClient, MikanEpisodeHomepageUrlMeta},
-};
 
 #[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq)]
 pub struct MikanRssItem {
@@ -112,9 +105,10 @@ impl TryFrom<rss::Item> for MikanRssItem {
                 RecorderError::from_mikan_rss_invalid_field(Cow::Borrowed("homepage:link"))
             })?;
 
-        let MikanEpisodeHomepageUrlMeta {
+        let MikanEpisodeHash {
-            mikan_episode_id, ..
+            mikan_episode_token: mikan_episode_id,
-        } = MikanEpisodeHomepageUrlMeta::parse_url(&homepage).ok_or_else(|| {
+            ..
+        } = MikanEpisodeHash::from_homepage_url(&homepage).ok_or_else(|| {
             RecorderError::from_mikan_rss_invalid_field(Cow::Borrowed("mikan_episode_id"))
         })?;
 

apps/recorder/src/extract/mikan/subscription.rs

@@ -10,7 +10,10 @@ use futures::Stream;
 use itertools::Itertools;
 use maplit::hashmap;
 use scraper::Html;
-use sea_orm::{ColumnTrait, EntityTrait, IntoSimpleExpr, QueryFilter, QuerySelect, prelude::Expr};
+use sea_orm::{
+    ActiveModelTrait, ActiveValue, ColumnTrait, EntityTrait, IntoSimpleExpr, QueryFilter,
+    QuerySelect, prelude::Expr, sea_query::OnConflict,
+};
 use serde::{Deserialize, Serialize};
 use snafu::{OptionExt, ResultExt};
 use url::Url;
@@ -19,8 +22,8 @@ use crate::{
     app::AppContextTrait,
     errors::{RecorderError, RecorderResult},
     extract::mikan::{
-        MikanBangumiHomepageUrlMeta, MikanBangumiMeta, MikanBangumiRssUrlMeta, MikanEpisodeMeta,
+        MikanBangumiHash, MikanBangumiMeta, MikanBangumiRssUrlMeta, MikanEpisodeHash,
-        MikanRssItem, MikanSeasonFlowUrlMeta, MikanSeasonStr,
+        MikanEpisodeMeta, MikanRssItem, MikanSeasonFlowUrlMeta, MikanSeasonStr,
         MikanSubscriberSubscriptionRssUrlMeta, build_mikan_bangumi_expand_subscribed_url,
         build_mikan_bangumi_subscription_rss_url, build_mikan_season_flow_url,
         build_mikan_subscriber_subscription_rss_url,
@@ -29,7 +32,7 @@ use crate::{
         scrape_mikan_episode_meta_from_episode_homepage_url,
     },
     migrations::defs::Bangumi,
-    models::{bangumi, episodes, subscriptions},
+    models::{bangumi, episodes, subscription_bangumi, subscription_episode, subscriptions},
 };
 
 #[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq, InputObject, SimpleObject)]
@@ -46,137 +49,91 @@ impl MikanSubscriberSubscription {
         ctx: Arc<dyn AppContextTrait>,
     ) -> RecorderResult<Vec<MikanBangumiMeta>> {
         let mikan_client = ctx.mikan();
+        let db = ctx.db();
 
-        let new_episode_meta_list: Vec<MikanEpisodeMeta> = {
+        let to_insert_episode_meta_list: Vec<MikanEpisodeMeta> = {
             let rss_item_list = self.pull_rss_items(ctx.clone()).await?;
 
-            let existed_item_set = episodes::Entity::find()
+            let existed_episode_token_list = episodes::Model::get_existed_mikan_episode_list(
-                .select_only()
+                ctx.as_ref(),
-                .column(episodes::Column::MikanEpisodeId)
+                rss_item_list.iter().map(|s| MikanEpisodeHash {
-                .filter(
+                    mikan_episode_token: s.mikan_episode_id.clone(),
-                    episodes::Column::SubscriberId.eq(self.subscriber_id).add(
+                }),
-                        episodes::Column::MikanEpisodeId
+                self.subscriber_id,
-                            .is_in(rss_item_list.iter().map(|s| s.mikan_episode_id.clone())),
+                self.id,
-                    ),
+            )
-                )
+            .await?
-                .into_tuple::<(String,)>()
+            .into_iter()
-                .all(ctx.db())
+            .map(|(id, hash)| (hash.mikan_episode_token, id))
-                .await?
+            .collect::<HashMap<_, _>>();
-                .into_iter()
-                .map(|(value,)| value)
-                .collect::<HashSet<_>>();
 
-            let mut result = vec![];
+            let mut to_insert_episode_meta_list = vec![];
-            for rss_item in rss_item_list
+
-                .into_iter()
+            for to_insert_rss_item in rss_item_list.into_iter().filter(|rss_item| {
-                .filter(|rss_item| !existed_item_set.contains(&rss_item.mikan_episode_id))
+                !existed_episode_token_list.contains_key(&rss_item.mikan_episode_id)
-            {
+            }) {
                 let episode_meta = scrape_mikan_episode_meta_from_episode_homepage_url(
                     mikan_client,
-                    rss_item.homepage,
+                    to_insert_rss_item.homepage,
                 )
                 .await?;
+                to_insert_episode_meta_list.push(episode_meta);
             }
 
-            result
+            subscription_episode::Model::add_episodes_for_subscription(
+                ctx.as_ref(),
+                existed_episode_token_list.into_values(),
+                self.subscriber_id,
+                self.id,
+            )
+            .await?;
+
+            to_insert_episode_meta_list
         };
 
-        {
+        let new_episode_meta_bangumi_map = {
-            let mut new_bangumi_hash_map = new_episode_meta_list
+            let bangumi_hash_map = to_insert_episode_meta_list
                 .iter()
-                .map(|episode_meta| {
+                .map(|episode_meta| (episode_meta.bangumi_hash(), episode_meta))
-                    (
-                        MikanBangumiHomepageUrlMeta {
-                            mikan_bangumi_id: episode_meta.mikan_bangumi_id.clone(),
-                            mikan_fansub_id: episode_meta.mikan_fansub_id.clone(),
-                        },
-                        episode_meta,
-                    )
-                })
                 .collect::<HashMap<_, _>>();
 
-            let mut new_bangumi_meta_map: HashMap<MikanBangumiHomepageUrlMeta, bangumi::Model> =
+            let existed_bangumi_set = bangumi::Model::get_existed_mikan_bangumi_list(
-                hashmap! {};
+                ctx.as_ref(),
+                bangumi_hash_map.keys().cloned(),
+                self.subscriber_id,
+                self.id,
+            )
+            .await?
+            .map(|(_, bangumi_hash)| bangumi_hash)
+            .collect::<HashSet<_>>();
 
-            for bangumi_model in bangumi::Entity::find()
+            let mut to_insert_bangumi_list = vec![];
-                .filter({
-                    Expr::tuple([
-                        bangumi::Column::MikanBangumiId.into_simple_expr(),
-                        bangumi::Column::MikanFansubId.into_simple_expr(),
-                        bangumi::Column::SubscriberId.into_simple_expr(),
-                    ])
-                    .in_tuples(new_bangumi_hash_map.iter().map(
-                        |(bangumi_meta, _)| {
-                            (
-                                bangumi_meta.mikan_bangumi_id.clone(),
-                                bangumi_meta.mikan_fansub_id.clone(),
-                                self.subscriber_id,
-                            )
-                        },
-                    ))
-                })
-                .all(ctx.db())
-                .await?
-            {
-                let bangumi_hash = MikanBangumiHomepageUrlMeta {
-                    mikan_bangumi_id: bangumi_model.mikan_bangumi_id.unwrap(),
-                    mikan_fansub_id: bangumi_model.mikan_fansub_id.unwrap(),
-                };
-                new_bangumi_hash_map.remove(&bangumi_hash);
-                new_bangumi_meta_map.insert(bangumi_hash, bangumi_model);
-            }
 
-            for (bangumi_hash, episode_meta) in new_bangumi_hash_map {
+            for (bangumi_hash, episode_meta) in bangumi_hash_map.iter() {
-                let bangumi_meta: MikanBangumiMeta = episode_meta.clone().into();
+                if !existed_bangumi_set.contains(&bangumi_hash) {
+                    let bangumi_meta: MikanBangumiMeta = (*episode_meta).clone().into();
 
-                let bangumi_active_model = bangumi::ActiveModel::from_mikan_bangumi_meta(
+                    let bangumi_active_model = bangumi::ActiveModel::from_mikan_bangumi_meta(
-                    ctx.clone(),
+                        ctx.as_ref(),
-                    bangumi_meta,
+                        bangumi_meta,
-                    self.subscriber_id,
+                        self.subscriber_id,
-                )
+                        self.id,
-                .with_whatever_context::<_, String, RecorderError>(|_| {
-                    format!(
-                        "failed to create bangumi active model from mikan bangumi meta, \
-                         bangumi_meta = {:?}",
-                        bangumi_meta
                     )
-                })?;
+                    .await?;
 
-                new_bangumi_meta_map.insert(bangumi_hash, bangumi_active_model);
+                    to_insert_bangumi_list.push(bangumi_active_model);
-            }
+                }
-        }
-
-        let mut new_bangumi_meta_map: HashMap<MikanBangumiHomepageUrlMeta, bangumi::Model> = {
-            let mut map = hashmap! {};
-
-            for bangumi_model in existed_bangumi_list {
-                let hash = MikanBangumiHomepageUrlMeta {
-                    mikan_bangumi_id: bangumi_model.mikan_bangumi_id.unwrap(),
-                    mikan_fansub_id: bangumi_model.mikan_fansub_id.unwrap(),
-                };
-                new_bangumi_hash_map.remove(&hash);
-                map.insert(hash, bangumi_model);
             }
 
-            map
+            bangumi::Entity::insert_many(to_insert_bangumi_list)
+                .on_conflict_do_nothing()
+                .exec(db)
+                .await?;
+
+            let mut new_episode_meta_bangumi_map: HashMap<MikanBangumiHash, bangumi::Model> =
+                hashmap! {};
         };
 
-        for bangumi_hash in new_bangumi_hash_map {
-            bangumi::Entity::insert(bangumi::ActiveModel {
-                raw_name: ActiveValue::Set(bangumi_meta.bangumi_title.clone()),
-                display_name: ActiveValue::Set(bangumi_meta.bangumi_title.clone()),
-                ..Default::default()
-            });
-        }
-
-        bangumi::Entity::insert_many(new_bangumi_hash_map.values().map(|bangumi_meta| {
-            bangumi::ActiveModel {
-                raw_name: ActiveValue::Set(bangumi_meta.bangumi_title.clone()),
-                display_name: ActiveValue::Set(bangumi_meta.bangumi_title.clone()),
-                ..Default::default()
-            }
-        }));
-
         todo!()
     }
 

apps/recorder/src/extract/mikan/web.rs

@@ -117,6 +117,15 @@ pub struct MikanEpisodeMeta {
     pub mikan_episode_id: String,
 }
 
+impl MikanEpisodeMeta {
+    pub fn bangumi_hash(&self) -> MikanBangumiHash {
+        MikanBangumiHash {
+            mikan_bangumi_id: self.mikan_bangumi_id.clone(),
+            mikan_fansub_id: self.mikan_fansub_id.clone(),
+        }
+    }
+}
+
 #[derive(Clone, Debug, PartialEq)]
 pub struct MikanBangumiPosterMeta {
     pub origin_poster_src: Url,
@@ -124,12 +133,12 @@ pub struct MikanBangumiPosterMeta {
 }
 
 #[derive(Clone, Debug, PartialEq)]
-pub struct MikanBangumiIndexHomepageUrlMeta {
+pub struct MikanBangumiIndexHash {
     pub mikan_bangumi_id: String,
 }
 
-impl MikanBangumiIndexHomepageUrlMeta {
+impl MikanBangumiIndexHash {
-    pub fn parse_url(url: &Url) -> Option<Self> {
+    pub fn from_homepage_url(url: &Url) -> Option<Self> {
         if url.path().starts_with("/Home/Bangumi/") {
             let mikan_bangumi_id = url.path().replace("/Home/Bangumi/", "");
 
@@ -141,13 +150,13 @@ impl MikanBangumiIndexHomepageUrlMeta {
 }
 
 #[derive(Clone, Debug, PartialEq, Eq, Hash)]
-pub struct MikanBangumiHomepageUrlMeta {
+pub struct MikanBangumiHash {
     pub mikan_bangumi_id: String,
     pub mikan_fansub_id: String,
 }
 
-impl MikanBangumiHomepageUrlMeta {
+impl MikanBangumiHash {
-    pub fn from_url(url: &Url) -> Option<Self> {
+    pub fn from_homepage_url(url: &Url) -> Option<Self> {
         if url.path().starts_with("/Home/Bangumi/") {
             let mikan_bangumi_id = url.path().replace("/Home/Bangumi/", "");
 
@@ -163,16 +172,18 @@ impl MikanBangumiHomepageUrlMeta {
     }
 }
 
-#[derive(Clone, Debug, PartialEq)]
+#[derive(Clone, Debug, PartialEq, Eq, Hash)]
-pub struct MikanEpisodeHomepageUrlMeta {
+pub struct MikanEpisodeHash {
-    pub mikan_episode_id: String,
+    pub mikan_episode_token: String,
 }
 
-impl MikanEpisodeHomepageUrlMeta {
+impl MikanEpisodeHash {
-    pub fn parse_url(url: &Url) -> Option<Self> {
+    pub fn from_homepage_url(url: &Url) -> Option<Self> {
         if url.path().starts_with("/Home/Episode/") {
             let mikan_episode_id = url.path().replace("/Home/Episode/", "");
-            Some(Self { mikan_episode_id })
+            Some(Self {
+                mikan_episode_token: mikan_episode_id,
+            })
         } else {
             None
         }
@@ -333,9 +344,10 @@ pub fn extract_mikan_episode_meta_from_episode_homepage_html(
             RecorderError::from_mikan_meta_missing_field(Cow::Borrowed("episode_title"))
         })?;
 
-    let MikanEpisodeHomepageUrlMeta {
+    let MikanEpisodeHash {
-        mikan_episode_id, ..
+        mikan_episode_token,
-    } = MikanEpisodeHomepageUrlMeta::parse_url(&mikan_episode_homepage_url).ok_or_else(|| {
+        ..
+    } = MikanEpisodeHash::from_homepage_url(&mikan_episode_homepage_url).ok_or_else(|| {
         RecorderError::from_mikan_meta_missing_field(Cow::Borrowed("mikan_episode_id"))
     })?;
 
@@ -484,7 +496,7 @@ pub fn extract_mikan_bangumi_meta_from_bangumi_homepage_html(
     mikan_bangumi_homepage_url: Url,
     mikan_base_url: &Url,
 ) -> RecorderResult<MikanBangumiMeta> {
-    let mikan_fansub_id = MikanBangumiHomepageUrlMeta::from_url(&mikan_bangumi_homepage_url)
+    let mikan_fansub_id = MikanBangumiHash::from_homepage_url(&mikan_bangumi_homepage_url)
         .map(|s| s.mikan_fansub_id)
         .ok_or_else(|| {
             RecorderError::from_mikan_meta_missing_field(Cow::Borrowed("mikan_fansub_id"))

apps/recorder/src/models/bangumi.rs

@@ -2,15 +2,22 @@ use std::sync::Arc;
 
 use async_graphql::SimpleObject;
 use async_trait::async_trait;
-use sea_orm::{ActiveValue, FromJsonQueryResult, entity::prelude::*, sea_query::OnConflict};
+use sea_orm::{
+    ActiveValue, FromJsonQueryResult, FromQueryResult, IntoSimpleExpr, JoinType, QuerySelect,
+    entity::prelude::*,
+    sea_query::{IntoCondition, OnConflict},
+};
 use serde::{Deserialize, Serialize};
 
 use super::subscription_bangumi;
 use crate::{
     app::AppContextTrait,
-    errors::RecorderResult,
+    errors::{RecorderError, RecorderResult},
     extract::{
-        mikan::{MikanBangumiMeta, build_mikan_bangumi_subscription_rss_url},
+        mikan::{
+            MikanBangumiHash, MikanBangumiMeta, build_mikan_bangumi_subscription_rss_url,
+            scrape_mikan_poster_meta_from_image_url,
+        },
         rawname::parse_episode_meta_from_raw_name,
     },
 };
@@ -120,6 +127,59 @@ pub enum RelatedEntity {
     SubscriptionBangumi,
 }
 
+impl ActiveModel {
+    #[tracing::instrument(err, skip_all, fields(mikan_bangumi_id = %meta.mikan_bangumi_id, mikan_fansub_id = %meta.mikan_fansub_id, subscriber_id = %subscriber_id))]
+    pub async fn from_mikan_bangumi_meta(
+        ctx: &dyn AppContextTrait,
+        meta: MikanBangumiMeta,
+        subscriber_id: i32,
+        _subscription_id: i32,
+    ) -> RecorderResult<Self> {
+        let mikan_client = ctx.mikan();
+        let storage_service = ctx.storage();
+        let mikan_base_url = mikan_client.base_url();
+
+        let raw_meta = parse_episode_meta_from_raw_name(&meta.bangumi_title)?;
+
+        let rss_url = build_mikan_bangumi_subscription_rss_url(
+            mikan_base_url.clone(),
+            &meta.mikan_bangumi_id,
+            Some(&meta.mikan_fansub_id),
+        );
+
+        let poster_link = if let Some(origin_poster_src) = meta.origin_poster_src {
+            let poster_meta = scrape_mikan_poster_meta_from_image_url(
+                mikan_client,
+                storage_service,
+                origin_poster_src,
+                subscriber_id,
+            )
+            .await?;
+            poster_meta.poster_src
+        } else {
+            None
+        };
+
+        Ok(Self {
+            mikan_bangumi_id: ActiveValue::Set(Some(meta.mikan_bangumi_id)),
+            mikan_fansub_id: ActiveValue::Set(Some(meta.mikan_fansub_id)),
+            subscriber_id: ActiveValue::Set(subscriber_id),
+            display_name: ActiveValue::Set(meta.bangumi_title.clone()),
+            raw_name: ActiveValue::Set(meta.bangumi_title),
+            season: ActiveValue::Set(raw_meta.season),
+            season_raw: ActiveValue::Set(raw_meta.season_raw),
+            fansub: ActiveValue::Set(Some(meta.fansub)),
+            poster_link: ActiveValue::Set(poster_link),
+            homepage: ActiveValue::Set(Some(meta.homepage.to_string())),
+            rss_link: ActiveValue::Set(Some(rss_url.to_string())),
+            ..Default::default()
+        })
+    }
+}
+
+#[async_trait]
+impl ActiveModelBehavior for ActiveModel {}
+
 impl Model {
     pub async fn get_or_insert_from_mikan<F>(
         ctx: &dyn AppContextTrait,
@@ -181,40 +241,44 @@ impl Model {
             Ok(bgm)
         }
     }
-}
 
-impl ActiveModel {
+    pub async fn get_existed_mikan_bangumi_list(
-    pub fn from_mikan_bangumi_meta(
+        ctx: &dyn AppContextTrait,
-        ctx: Arc<dyn AppContextTrait>,
+        hashes: impl Iterator<Item = MikanBangumiHash>,
-        meta: MikanBangumiMeta,
         subscriber_id: i32,
-    ) -> RecorderResult<Self> {
+        _subscription_id: i32,
-        let mikan_base_url = ctx.mikan().base_url();
+    ) -> RecorderResult<impl Iterator<Item = (i32, MikanBangumiHash)>> {
-
+        Ok(Entity::find()
-        let raw_meta = parse_episode_meta_from_raw_name(&meta.bangumi_title)?;
+            .select_only()
-
+            .column(Column::Id)
-        let rss_url = build_mikan_bangumi_subscription_rss_url(
+            .column(Column::MikanBangumiId)
-            mikan_base_url.clone(),
+            .column(Column::MikanFansubId)
-            &meta.mikan_bangumi_id,
+            .filter(
-            Some(&meta.mikan_fansub_id),
+                Expr::tuple([
-        );
+                    Column::MikanBangumiId.into_simple_expr(),
-
+                    Column::MikanFansubId.into_simple_expr(),
-        Ok(Self {
+                    Column::SubscriberId.into_simple_expr(),
-            mikan_bangumi_id: ActiveValue::Set(Some(meta.mikan_bangumi_id)),
+                ])
-            mikan_fansub_id: ActiveValue::Set(Some(meta.mikan_fansub_id)),
+                .in_tuples(hashes.map(|hash| {
-            subscriber_id: ActiveValue::Set(subscriber_id),
+                    (
-            display_name: ActiveValue::Set(meta.bangumi_title.clone()),
+                        hash.mikan_bangumi_id.clone(),
-            raw_name: ActiveValue::Set(meta.bangumi_title),
+                        hash.mikan_fansub_id.clone(),
-            season: ActiveValue::Set(raw_meta.season),
+                        subscriber_id,
-            season_raw: ActiveValue::Set(raw_meta.season_raw),
+                    )
-            fansub: ActiveValue::Set(Some(meta.fansub)),
+                })),
-            poster_link: ActiveValue::Set(meta.origin_poster_src.map(|url| url.to_string())),
+            )
-            homepage: ActiveValue::Set(Some(meta.homepage.to_string())),
+            .into_tuple::<(i32, String, String)>()
-            rss_link: ActiveValue::Set(Some(rss_url.to_string())),
+            .all(ctx.db())
-            ..Default::default()
+            .await?
-        })
+            .into_iter()
+            .map(|(bangumi_id, mikan_bangumi_id, mikan_fansub_id)| {
+                (
+                    bangumi_id,
+                    MikanBangumiHash {
+                        mikan_bangumi_id,
+                        mikan_fansub_id,
+                    },
+                )
+            }))
     }
 }
-
-#[async_trait]
-impl ActiveModelBehavior for ActiveModel {}

apps/recorder/src/models/episodes.rs

@@ -1,15 +1,19 @@
 use std::sync::Arc;
 
 use async_trait::async_trait;
-use sea_orm::{ActiveValue, FromJsonQueryResult, entity::prelude::*, sea_query::OnConflict};
+use sea_orm::{
+    ActiveValue, ColumnTrait, FromJsonQueryResult, IntoSimpleExpr, JoinType, QuerySelect,
+    entity::prelude::*,
+    sea_query::{Alias, IntoCondition, OnConflict},
+};
 use serde::{Deserialize, Serialize};
 
-use super::{bangumi, query::InsertManyReturningExt, subscription_episode};
+use super::{bangumi, query::InsertManyReturningExt, subscription_bangumi, subscription_episode};
 use crate::{
     app::AppContextTrait,
-    errors::RecorderResult,
+    errors::{RecorderError, RecorderResult},
     extract::{
-        mikan::{MikanEpisodeMeta, build_mikan_episode_homepage_url},
+        mikan::{MikanEpisodeHash, MikanEpisodeMeta, build_mikan_episode_homepage_url},
         rawname::parse_episode_meta_from_raw_name,
     },
 };
@@ -134,59 +138,6 @@ pub struct MikanEpsiodeCreation {
     pub bangumi: Arc<bangumi::Model>,
 }
 
-impl Model {
-    pub async fn add_episodes(
-        ctx: &dyn AppContextTrait,
-        subscriber_id: i32,
-        subscription_id: i32,
-        creations: impl IntoIterator<Item = MikanEpsiodeCreation>,
-    ) -> RecorderResult<()> {
-        let db = ctx.db();
-        let new_episode_active_modes = creations
-            .into_iter()
-            .map(|cr| ActiveModel::from_mikan_episode_meta(ctx, cr))
-            .inspect(|result| {
-                if let Err(e) = result {
-                    tracing::warn!("Failed to create episode: {:?}", e);
-                }
-            })
-            .flatten();
-
-        let inserted_episodes = Entity::insert_many(new_episode_active_modes)
-            .on_conflict(
-                OnConflict::columns([Column::BangumiId, Column::MikanEpisodeId])
-                    .do_nothing()
-                    .to_owned(),
-            )
-            .exec_with_returning_columns(db, [Column::Id])
-            .await?
-            .into_iter()
-            .flat_map(|r| r.try_get_many_by_index::<i32>());
-
-        let insert_subscription_episode_links = inserted_episodes.into_iter().map(|episode_id| {
-            subscription_episode::ActiveModel::from_subscription_and_episode(
-                subscriber_id,
-                subscription_id,
-                episode_id,
-            )
-        });
-
-        subscription_episode::Entity::insert_many(insert_subscription_episode_links)
-            .on_conflict(
-                OnConflict::columns([
-                    subscription_episode::Column::SubscriptionId,
-                    subscription_episode::Column::EpisodeId,
-                ])
-                .do_nothing()
-                .to_owned(),
-            )
-            .exec(db)
-            .await?;
-
-        Ok(())
-    }
-}
-
 impl ActiveModel {
     pub fn from_mikan_episode_meta(
         ctx: &dyn AppContextTrait,
@@ -239,3 +190,92 @@ impl ActiveModel {
 
 #[async_trait]
 impl ActiveModelBehavior for ActiveModel {}
+
+impl Model {
+    pub async fn get_existed_mikan_episode_list(
+        ctx: &dyn AppContextTrait,
+        ids: impl Iterator<Item = MikanEpisodeHash>,
+        subscriber_id: i32,
+        _subscription_id: i32,
+    ) -> RecorderResult<impl Iterator<Item = (i32, MikanEpisodeHash)>> {
+        let db = ctx.db();
+
+        Ok(Entity::find()
+            .select_only()
+            .column(Column::Id)
+            .column(Column::MikanEpisodeId)
+            .filter(
+                Expr::tuple([
+                    Column::MikanEpisodeId.into_simple_expr(),
+                    Column::SubscriberId.into_simple_expr(),
+                ])
+                .in_tuples(
+                    ids.into_iter()
+                        .map(|id| (id.mikan_episode_token, subscriber_id)),
+                ),
+            )
+            .into_tuple::<(i32, String)>()
+            .all(db)
+            .await?
+            .into_iter()
+            .map(|(id, mikan_episode_id)| {
+                (
+                    id,
+                    MikanEpisodeHash {
+                        mikan_episode_token: mikan_episode_id,
+                    },
+                )
+            }))
+    }
+
+    pub async fn add_episodes(
+        ctx: &dyn AppContextTrait,
+        subscriber_id: i32,
+        subscription_id: i32,
+        creations: impl IntoIterator<Item = MikanEpsiodeCreation>,
+    ) -> RecorderResult<()> {
+        let db = ctx.db();
+        let new_episode_active_modes = creations
+            .into_iter()
+            .map(|cr| ActiveModel::from_mikan_episode_meta(ctx, cr))
+            .inspect(|result| {
+                if let Err(e) = result {
+                    tracing::warn!("Failed to create episode: {:?}", e);
+                }
+            })
+            .flatten();
+
+        let inserted_episodes = Entity::insert_many(new_episode_active_modes)
+            .on_conflict(
+                OnConflict::columns([Column::BangumiId, Column::MikanEpisodeId])
+                    .do_nothing()
+                    .to_owned(),
+            )
+            .exec_with_returning_columns(db, [Column::Id])
+            .await?
+            .into_iter()
+            .flat_map(|r| r.try_get_many_by_index::<i32>());
+
+        let insert_subscription_episode_links = inserted_episodes.into_iter().map(|episode_id| {
+            subscription_episode::ActiveModel::from_subscription_and_episode(
+                subscriber_id,
+                subscription_id,
+                episode_id,
+            )
+        });
+
+        subscription_episode::Entity::insert_many(insert_subscription_episode_links)
+            .on_conflict(
+                OnConflict::columns([
+                    subscription_episode::Column::SubscriptionId,
+                    subscription_episode::Column::EpisodeId,
+                ])
+                .do_nothing()
+                .to_owned(),
+            )
+            .exec(db)
+            .await?;
+
+        Ok(())
+    }
+}

apps/recorder/src/models/subscription_bangumi.rs

@@ -2,6 +2,8 @@ use async_trait::async_trait;
 use sea_orm::{ActiveValue, entity::prelude::*};
 use serde::{Deserialize, Serialize};
 
+use crate::{app::AppContextTrait, errors::RecorderResult};
+
 #[derive(Clone, Debug, PartialEq, DeriveEntityModel, Eq, Serialize, Deserialize)]
 #[sea_orm(table_name = "subscription_bangumi")]
 pub struct Model {
@@ -69,3 +71,25 @@ impl ActiveModel {
         }
     }
 }
+
+impl Model {
+    pub async fn add_bangumis_for_subscription(
+        ctx: &dyn AppContextTrait,
+        bangumi_ids: impl Iterator<Item = i32>,
+        subscriber_id: i32,
+        subscription_id: i32,
+    ) -> RecorderResult<()> {
+        let db = ctx.db();
+        Entity::insert_many(bangumi_ids.map(|bangumi_id| ActiveModel {
+            bangumi_id: ActiveValue::Set(bangumi_id),
+            subscriber_id: ActiveValue::Set(subscriber_id),
+            subscription_id: ActiveValue::Set(subscription_id),
+            ..Default::default()
+        }))
+        .on_conflict_do_nothing()
+        .exec(db)
+        .await?;
+
+        Ok(())
+    }
+}

apps/recorder/src/models/subscription_episode.rs

@@ -2,6 +2,8 @@ use async_trait::async_trait;
 use sea_orm::{ActiveValue, entity::prelude::*};
 use serde::{Deserialize, Serialize};
 
+use crate::{app::AppContextTrait, errors::RecorderResult};
+
 #[derive(Clone, Debug, PartialEq, DeriveEntityModel, Eq, Serialize, Deserialize)]
 #[sea_orm(table_name = "subscription_episode")]
 pub struct Model {
@@ -69,3 +71,25 @@ impl ActiveModel {
         }
     }
 }
+
+impl Model {
+    pub async fn add_episodes_for_subscription(
+        ctx: &dyn AppContextTrait,
+        episode_ids: impl Iterator<Item = i32>,
+        subscriber_id: i32,
+        subscription_id: i32,
+    ) -> RecorderResult<()> {
+        let db = ctx.db();
+        Entity::insert_many(episode_ids.map(|episode_id| ActiveModel {
+            episode_id: ActiveValue::Set(episode_id),
+            subscription_id: ActiveValue::Set(subscription_id),
+            subscriber_id: ActiveValue::Set(subscriber_id),
+            ..Default::default()
+        }))
+        .on_conflict_do_nothing()
+        .exec(db)
+        .await?;
+
+        Ok(())
+    }
+}