It is (mostly) done!

src/bin/patched_porobot_telegram.rs

@@ -14,8 +14,9 @@ async fn main() {
     use patched_porobot::data::corebundle::globals::LocalizedGlobalsIndexes;
     use patched_porobot::search::cardsearch::CardSearchEngine;
     use patched_porobot::telegram::inline::card_to_inlinequeryresult;
-    use teloxide::payloads::AnswerInlineQuery;
+    use teloxide::payloads::{AnswerInlineQuery, SendMessage};
     use teloxide::requests::JsonRequest;
+    use teloxide::types::{Recipient, ParseMode};
     use teloxide::prelude::*;
     use itertools::Itertools;
 
@@ -62,43 +63,60 @@ async fn main() {
     let me = bot.get_me().send().await.expect("Telegram bot parameters to be valid");
     debug!("Created Telegram bot!");
 
+    debug!("Creating message handler...");
+    let message_handler = Update::filter_message().chain(dptree::endpoint(move |message: Message, bot: Bot| {
+        info!("Handling private message: `{:?}`", &message.text());
+
+        let payload = SendMessage {
+            chat_id: Recipient::Id(message.chat.id.clone()),
+            // TODO: Add a proper message here.
+            text: "TODO: Introduction message!".to_string(),
+            parse_mode: Some(ParseMode::Html),
+            entities: None,
+            disable_web_page_preview: Some(true),
+            disable_notification: None,
+            protect_content: None,
+            reply_to_message_id: None,
+            allow_sending_without_reply: None,
+            reply_markup: None
+        };
+
+        async move {
+            let telegram_reply = JsonRequest::new(bot.clone(), payload).send().await;
+
+            if let Err(e) = telegram_reply {
+                error!("{:?}", &e);
+            }
+
+            respond(())
+        }
+    }));
+    debug!("Created message handler!");
+
     debug!("Creating inline query handler...");
-    let handler = Update::filter_inline_query().chain(dptree::endpoint(move |query: InlineQuery, bot: Bot| {
+    let inline_query_handler = Update::filter_inline_query().chain(dptree::endpoint(move |query: InlineQuery, bot: Bot| {
         info!("Handling inline query: `{}`", &query.query);
 
-        debug!("Querying the search engine...");
+        // It's not a real loop, it's just to make the code flow more tolerable.
-        let performed_query = engine.query(&query.query, 50);
+        let payload: AnswerInlineQuery = loop {
-
+            if query.query.len() == 0 {
-        let payload = match performed_query {
+                break AnswerInlineQuery {
-            Ok(results) => {
+                    inline_query_id: query.id.clone(),
-                if results.len() > 0 {
+                    results: vec![],
-                    AnswerInlineQuery {
+                    cache_time: None,
-                        inline_query_id: query.id.clone(),
+                    is_personal: Some(false),
-                        results: results
+                    next_offset: None,
-                            .iter()
+                    switch_pm_text: Some("Open help message".to_string()),
-                            .map(|card| card_to_inlinequeryresult(&engine.globals, card))
+                    switch_pm_parameter: Some("err-no-query".to_string()),
-                            .collect_vec(),
-                        cache_time: Some(86400),
-                        is_personal: Some(false),
-                        next_offset: None,
-                        switch_pm_text: None,
-                        switch_pm_parameter: None,
-                    }
-                }
-                else {
-                    AnswerInlineQuery {
-                        inline_query_id: query.id.clone(),
-                        results: vec![],
-                        cache_time: None,
-                        is_personal: Some(false),
-                        next_offset: None,
-                        switch_pm_text: Some("No results found".to_string()),
-                        switch_pm_parameter: Some("err-no-results".to_string()),
-                    }
                 }
             }
-            Err(_) => {
+
-                AnswerInlineQuery {
+            debug!("Querying the search engine...");
+            let results = engine.query(&query.query, 50);
+
+            if let Err(_) = results {
+                debug!("Invalid query syntax.");
+                break AnswerInlineQuery {
                     inline_query_id: query.id.clone(),
                     results: vec![],
                     cache_time: None,
@@ -108,6 +126,35 @@ async fn main() {
                     switch_pm_parameter: Some("err-invalid-query".to_string()),
                 }
             }
+            let results = results.unwrap();
+
+            let len = results.len();
+            if len == 0 {
+                debug!("No cards found.");
+                break AnswerInlineQuery {
+                    inline_query_id: query.id.clone(),
+                    results: vec![],
+                    cache_time: None,
+                    is_personal: Some(false),
+                    next_offset: None,
+                    switch_pm_text: Some("No cards found".to_string()),
+                    switch_pm_parameter: Some("err-no-results".to_string()),
+                }
+            }
+
+            debug!("Found {} cards.", &len);
+            break AnswerInlineQuery {
+                inline_query_id: query.id.clone(),
+                results: results
+                    .iter()
+                    .map(|card| card_to_inlinequeryresult(&engine.globals, card))
+                    .collect_vec(),
+                cache_time: Some(300),
+                is_personal: Some(false),
+                next_offset: None,
+                switch_pm_text: None,
+                switch_pm_parameter: None,
+            }
         };
 
         async move {
@@ -122,6 +169,16 @@ async fn main() {
     }));
     debug!("Create inline query handler!");
 
+    debug!("Merging handlers...");
+    let handler = dptree::entry()
+        .branch(inline_query_handler)
+        .branch(message_handler);
+    debug!("Merged handlers!");
+
     info!("@{} is ready!", &me.username.as_ref().expect("bot to have an username"));
-    Dispatcher::builder(bot, handler).enable_ctrlc_handler().build().dispatch().await;
+    Dispatcher::builder(bot, handler)
+        .enable_ctrlc_handler()
+        .build()
+        .dispatch()
+        .await;
 }

src/telegram/display.rs

@@ -28,17 +28,17 @@ pub fn display_card(globals: &LocalizedGlobalsIndexes, card: &Card) -> String {
 
     let stats = match &card.r#type {
         CardType::Spell => format!(
-            "{} mana\n",
+            "{} mana\n\n",
             escape(&card.cost.to_string()),
         ),
         CardType::Unit => format!(
-            "{} mana {}|{}\n",
+            "{} mana {}|{}\n\n",
             escape(&card.cost.to_string()),
             escape(&card.attack.to_string()),
             escape(&card.health.to_string()),
         ),
         CardType::Landmark => format!(
-            "{} mana\n",
+            "{} mana\n\n",
             &card.cost
         ),
         _ => "".to_string(),
@@ -48,11 +48,12 @@ pub fn display_card(globals: &LocalizedGlobalsIndexes, card: &Card) -> String {
     let regions = display_regions(&card.regions, &globals.regions);
     let r#type = display_types(&card.r#type, &card.supertype, &card.subtypes);
 
-    let breadcrumbs = format!("{} › {} › {}\n", &set, &regions, &r#type);
+    let breadcrumbs = format!("{} › {} › {}\n\n", &set, &regions, &r#type);
 
     let keywords = display_keywords(&card.keywords, &globals.keywords);
 
-    let description = format!("{}\n", escape(&card.localized_description_text));
+    let description = display_description(&card.localized_description_text);
+    let levelup = display_levelup(&card.localized_levelup_text);
 
     let flavor = format!(
         "<i>{}</i>\n",
@@ -66,7 +67,7 @@ pub fn display_card(globals: &LocalizedGlobalsIndexes, card: &Card) -> String {
     );
 
     format!(
-        "{title}{breadcrumbs}\n{keywords}{stats}{description}\n-----\n{flavor}{artist}",
+        "{title}{breadcrumbs}{keywords}{stats}{description}{levelup}-----\n{flavor}{artist}",
     )
 }
 
@@ -150,3 +151,23 @@ fn display_keywords(keywords: &[CardKeyword], hm: &LocalizedCardKeywordIndex) ->
     )
 
 }
+
+
+fn display_description(description: &String) -> String {
+    if description == "" {
+        "".to_string()
+    }
+    else {
+        format!("{}\n\n", escape(&description))
+    }
+}
+
+
+fn display_levelup(levelup: &String) -> String {
+    if levelup == "" {
+        "".to_string()
+    }
+    else {
+        format!("<u>Level up</u>: {}\n\n", escape(&levelup))
+    }
+}