delete files left after diesel orm

reason: there should be fallback function that notifies admin about when
something went wrong

diesel.toml

@@ -1,9 +0,0 @@
-# For documentation on how to configure this file,
-# see https://diesel.rs/guides/configuring-diesel-cli
-
-[print_schema]
-file = "src/db/schema.rs"
-custom_type_derives = ["diesel_derive_enum::DbEnum", "diesel::query_builder::QueryId", "Clone"]
-
-[migrations_directory]
-dir = "./migrations"

migrations/00000000000000_diesel_initial_setup/down.sql

@@ -1,6 +0,0 @@
--- This file was automatically created by Diesel to setup helper functions
--- and other internal bookkeeping. This file is safe to edit, any future
--- changes will be added to existing projects as new migrations.
-
-DROP FUNCTION IF EXISTS diesel_manage_updated_at(_tbl regclass);
-DROP FUNCTION IF EXISTS diesel_set_updated_at();

migrations/00000000000000_diesel_initial_setup/up.sql

@@ -1,36 +0,0 @@
--- This file was automatically created by Diesel to setup helper functions
--- and other internal bookkeeping. This file is safe to edit, any future
--- changes will be added to existing projects as new migrations.
-
-
-
-
--- Sets up a trigger for the given table to automatically set a column called
--- `updated_at` whenever the row is modified (unless `updated_at` was included
--- in the modified columns)
---
--- # Example
---
--- ```sql
--- CREATE TABLE users (id SERIAL PRIMARY KEY, updated_at TIMESTAMP NOT NULL DEFAULT NOW());
---
--- SELECT diesel_manage_updated_at('users');
--- ```
-CREATE OR REPLACE FUNCTION diesel_manage_updated_at(_tbl regclass) RETURNS VOID AS $$
-BEGIN
-    EXECUTE format('CREATE TRIGGER set_updated_at BEFORE UPDATE ON %s
-                    FOR EACH ROW EXECUTE PROCEDURE diesel_set_updated_at()', _tbl);
-END;
-$$ LANGUAGE plpgsql;
-
-CREATE OR REPLACE FUNCTION diesel_set_updated_at() RETURNS trigger AS $$
-BEGIN
-    IF (
-        NEW IS DISTINCT FROM OLD AND
-        NEW.updated_at IS NOT DISTINCT FROM OLD.updated_at
-    ) THEN
-        NEW.updated_at := current_timestamp;
-    END IF;
-    RETURN NEW;
-END;
-$$ LANGUAGE plpgsql;

migrations/2025-04-02-141600_create_user/down.sql

@@ -1 +0,0 @@
-DROP TABLE users

migrations/2025-04-02-141600_create_user/up.sql

@@ -1,5 +0,0 @@
-CREATE TABLE users (
-  id SERIAL PRIMARY KEY,
-  is_admin BOOLEAN NOT NULL DEFAULT FALSE
-)
-

migrations/2025-04-02-154126_add_userid_to_users/down.sql

@@ -1,2 +0,0 @@
-ALTER TABLE users
-DROP COLUMN user_id;

migrations/2025-04-02-154126_add_userid_to_users/up.sql

@@ -1,2 +0,0 @@
-ALTER TABLE users
-ADD COLUMN user_id BIGINT NOT NULL;

migrations/2025-04-02-163956_users_id_bigint/down.sql

@@ -1,4 +0,0 @@
-ALTER TABLE users
-ALTER COLUMN id TYPE integer;
-ALTER TABLE users
-ADD COLUMN user_id BIGINT NOT NULL;

migrations/2025-04-02-163956_users_id_bigint/up.sql

@@ -1,4 +0,0 @@
-ALTER TABLE users
-ALTER COLUMN id TYPE BIGINT;
-ALTER TABLE users
-DROP COLUMN user_id;

migrations/2025-04-03-000002_change_user_id_to_bigint.up.sql

@@ -1,6 +0,0 @@
-<<<<<<< HEAD
-=======
-ALTER TABLE users
-ALTER COLUMN id TYPE BIGINT;
->>>>>>> Snippet
-

migrations/2025-04-03-130758_message_literal_map/down.sql

@@ -1 +0,0 @@
-DROP TABLE IF EXISTS messages;

migrations/2025-04-03-130758_message_literal_map/up.sql

@@ -1,7 +0,0 @@
-CREATE TABLE messages (
-    id SERIAL PRIMARY KEY,
-    chat_id BIGINT NOT NULL,
-    message_id BIGINT NOT NULL,
-    token VARCHAR(255) NOT NULL,
-    UNIQUE (chat_id, message_id)
-);

migrations/2025-04-03-134446_token_map/down.sql

@@ -1 +0,0 @@
-DROP TABLE IF EXISTS literals;

migrations/2025-04-03-134446_token_map/up.sql

@@ -1,5 +0,0 @@
-CREATE TABLE literals (
-    id SERIAL PRIMARY KEY,
-    token VARCHAR(255) UNIQUE NOT NULL,
-    value TEXT
-);

migrations/2025-04-03-135748_litral_value_not_null/down.sql

@@ -1,2 +0,0 @@
-ALTER TABLE literals
-ALTER COLUMN value DROP NOT NULL;

migrations/2025-04-03-135748_litral_value_not_null/up.sql

@@ -1,2 +0,0 @@
-ALTER TABLE literals
-ALTER COLUMN value SET NOT NULL;

migrations/2025-04-07-124248_extend_user_table/down.sql

@@ -1,5 +0,0 @@
-ALTER TABLE users
-DROP COLUMN first_name,
-DROP COLUMN last_name,
-DROP COLUMN username,
-DROP COLUMN language_code;

migrations/2025-04-07-124248_extend_user_table/up.sql

@@ -1,5 +0,0 @@
-ALTER TABLE users
-ADD COLUMN first_name VARCHAR(255),
-ADD COLUMN last_name VARCHAR(255),
-ADD COLUMN username VARCHAR(255),
-ADD COLUMN language_code VARCHAR(10);

migrations/2025-04-07-125633_non_optional_firstname/down.sql

@@ -1,6 +0,0 @@
--- This file should undo anything in `up.sql`
-
-
-
-ALTER TABLE "users" ALTER COLUMN "first_name" DROP NOT NULL;
-

migrations/2025-04-07-125633_non_optional_firstname/up.sql

@@ -1,6 +0,0 @@
--- Your SQL goes here
-
-
-
-ALTER TABLE "users" ALTER COLUMN "first_name" SET NOT NULL;
-

migrations/2025-04-07-130716_event_table/down.sql

@@ -1,2 +0,0 @@
-DROP TABLE events;
-

migrations/2025-04-07-130716_event_table/up.sql

@@ -1,4 +0,0 @@
-CREATE TABLE events (
-    id SERIAL PRIMARY KEY,
-    time TIMESTAMP UNIQUE NOT NULL
-);

migrations/2025-04-07-130908_reservation_table/down.sql

@@ -1,2 +0,0 @@
-DROP TABLE reservations;
-DROP TYPE reservation_status;

migrations/2025-04-07-130908_reservation_table/up.sql

@@ -1,10 +0,0 @@
-CREATE TYPE reservation_status AS ENUM ('booked', 'paid');
-
-CREATE TABLE reservations (
-    id SERIAL PRIMARY KEY,
-    user_id INTEGER REFERENCES users(id),
-    entered_name VARCHAR(255),
-    booked_time TIMESTAMP NOT NULL,
-    event_id INTEGER REFERENCES events(id),
-    status reservation_status NOT NULL
-);

migrations/2025-04-07-135609_stringify_reservation_status/down.sql

@@ -1,2 +0,0 @@
-CREATE TYPE reservation_status AS ENUM ('booked', 'paid');
-ALTER TABLE reservations ALTER COLUMN status TYPE reservation_status USING status::reservation_status;

migrations/2025-04-07-135609_stringify_reservation_status/up.sql

@@ -1,2 +0,0 @@
-ALTER TABLE reservations ALTER COLUMN status TYPE VARCHAR;
-DROP TYPE reservation_status;

migrations/2025-04-07-144225_fix_reservation_userid_bigint/down.sql

@@ -1,2 +0,0 @@
-ALTER TABLE reservations
-ALTER COLUMN user_id TYPE INTEGER;

migrations/2025-04-07-144225_fix_reservation_userid_bigint/up.sql

@@ -1,2 +0,0 @@
-ALTER TABLE reservations
-ALTER COLUMN user_id TYPE BIGINT;

migrations/2025-04-07-144945_require_fields_reservation/down.sql

@@ -1,4 +0,0 @@
-ALTER TABLE reservations
-ALTER COLUMN user_id DROP NOT NULL,
-ALTER COLUMN entered_name DROP NOT NULL,
-ALTER COLUMN event_id DROP NOT NULL;

migrations/2025-04-07-144945_require_fields_reservation/up.sql

@@ -1,4 +0,0 @@
-ALTER TABLE reservations
-ALTER COLUMN user_id SET NOT NULL,
-ALTER COLUMN entered_name SET NOT NULL,
-ALTER COLUMN event_id SET NOT NULL;

migrations/2025-04-07-153426_event_timestamptz/down.sql

@@ -1,2 +0,0 @@
-ALTER TABLE events
-ALTER COLUMN time TYPE TIMESTAMP;

migrations/2025-04-07-153426_event_timestamptz/up.sql

@@ -1,2 +0,0 @@
-ALTER TABLE events
-ALTER COLUMN time TYPE TIMESTAMPTZ;

migrations/2025-04-10-120721_media_table/down.sql

@@ -1,2 +0,0 @@
-DROP TABLE media;
-

migrations/2025-04-10-120721_media_table/up.sql

@@ -1,6 +0,0 @@
-CREATE TABLE media (
-    id SERIAL PRIMARY KEY,
-    token VARCHAR NOT NULL,
-    media_type VARCHAR NOT NULL,
-    file_id VARCHAR NOT NULL
-);

migrations/2025-04-18-100731_add_media_group_id/down.sql

@@ -1 +0,0 @@
-ALTER TABLE media DROP COLUMN media_group_id;

migrations/2025-04-18-100731_add_media_group_id/up.sql

@@ -1,2 +0,0 @@
-ALTER TABLE media ADD COLUMN media_group_id VARCHAR NOT NULL;
-

migrations/2025-04-18-101829_optional_media_group_id/down.sql

@@ -1 +0,0 @@
-ALTER TABLE media ALTER COLUMN media_group_id SET NOT NULL;

migrations/2025-04-18-101829_optional_media_group_id/up.sql

@@ -1 +0,0 @@
-ALTER TABLE media ALTER COLUMN media_group_id DROP NOT NULL;

src/admin.rs

@@ -3,11 +3,11 @@ use teloxide::{
     utils::{command::BotCommands, render::RenderMessageTextHelper},
 };
 
-use crate::LogMsg;
 use crate::{
     db::{CallDB, DB},
     BotResult,
 };
+use crate::{BotDialogue, LogMsg, State};
 use log::info;
 
 // These are should not appear in /help
@@ -27,6 +27,12 @@ pub enum AdminCommands {
     Pin,
     /// Removes your admin privileges
     Deop,
+    /// Send command and then click button to edits text in it
+    EditButton,
+    /// Set specified literal value
+    SetLiteral { literal: String },
+    /// Sets chat where this message entered as support's chats
+    SetChat,
 }
 
 pub async fn admin_command_handler(
@@ -34,6 +40,7 @@ pub async fn admin_command_handler(
     bot: Bot,
     msg: Message,
     cmd: AdminCommands,
+    dialogue: BotDialogue,
 ) -> BotResult<()> {
     let tguser = match msg.from.clone() {
         Some(user) => user,
@@ -69,6 +76,32 @@ pub async fn admin_command_handler(
                 .await?;
             Ok(())
         }
+        AdminCommands::EditButton => {
+            dialogue.update(State::EditButton).await?;
+            bot.send_message(msg.chat.id, "Click button which text should be edited")
+                .await?;
+            Ok(())
+        }
+        AdminCommands::SetLiteral { literal } => {
+            dialogue
+                .update(State::Edit {
+                    literal,
+                    lang: "ru".to_string(),
+                    is_caption_set: false,
+                })
+                .await?;
+            bot.send_message(msg.chat.id, "Send message for literal")
+                .await?;
+
+            Ok(())
+        }
+        AdminCommands::SetChat => {
+            dialogue.exit().await?;
+            db.set_literal("support_chat_id", &msg.chat.id.0.to_string())
+                .await?;
+            bot.send_message(msg.chat.id, "ChatId is set!").await?;
+            Ok(())
+        }
     }
 }
 

src/db/application.rs

@@ -0,0 +1,39 @@
+use chrono::{DateTime, FixedOffset, Local};
+use serde::{Deserialize, Serialize};
+
+use super::DbResult;
+use crate::query_call_consume;
+use crate::CallDB;
+
+#[derive(Serialize, Deserialize, Default)]
+pub struct Application<C>
+where
+    C: Serialize,
+{
+    pub _id: bson::oid::ObjectId,
+    pub created_at: DateTime<FixedOffset>,
+    #[serde(flatten)]
+    pub from: C,
+}
+
+impl<C> Application<C>
+where
+    C: Serialize + for<'a> Deserialize<'a> + Send + Sync,
+{
+    pub fn new(from: C) -> Self {
+        Self {
+            _id: Default::default(),
+            created_at: Local::now().into(),
+            from,
+        }
+    }
+
+    query_call_consume!(store, self, db, Self, {
+        let db = db.get_database().await;
+        let ci = db.collection::<Self>("applications");
+
+        ci.insert_one(&self).await?;
+
+        Ok(self)
+    });
+}

src/db/callback_info.rs

@@ -16,6 +16,7 @@ where
 {
     pub _id: bson::oid::ObjectId,
     pub created_at: DateTime<FixedOffset>,
+    pub literal: Option<String>,
     #[serde(flatten)]
     pub callback: C,
 }
@@ -28,6 +29,16 @@ where
         Self {
             _id: Default::default(),
             created_at: Local::now().into(),
+            literal: None,
+            callback,
+        }
+    }
+
+    pub fn new_with_literal(callback: C, literal: String) -> Self {
+        Self {
+            _id: Default::default(),
+            created_at: Local::now().into(),
+            literal: Some(literal),
             callback,
         }
     }

src/db/mod.rs

@@ -1,3 +1,4 @@
+pub mod application;
 pub mod callback_info;
 
 use std::time::Duration;
@@ -37,6 +38,7 @@ pub struct User {
     pub last_name: Option<String>,
     pub username: Option<String>,
     pub language_code: Option<String>,
+    pub metas: Vec<String>,
 }
 
 #[macro_export]
@@ -76,6 +78,23 @@ impl User {
 
         Ok(())
     });
+
+    pub async fn insert_meta<D: CallDB>(&self, db: &mut D, meta: &str) -> DbResult<()> {
+        let db_collection = db.get_database().await.collection::<Self>("users");
+
+        db_collection
+            .update_one(
+                doc! { "_id": self._id },
+                doc! {
+                    "$push": {
+                        "metas": meta,
+                    }
+                },
+            )
+            .await?;
+
+        Ok(())
+    }
 }
 
 #[derive(Serialize, Deserialize)]
@@ -122,7 +141,6 @@ impl DB {
     }
 
     pub async fn migrate(&mut self) -> DbResult<()> {
-        let db = self.get_database().await;
         /// some migrations doesn't realy need type of collection
         type AnyCollection = Event;
         let events = self.get_database().await.collection::<Event>("events");
@@ -216,7 +234,7 @@ pub trait CallDB {
                 doc! { "id": userid },
                 doc! {
                     "$set": doc! { "first_name": firstname},
-                    "$setOnInsert": doc! { "is_admin": false },
+                    "$setOnInsert": doc! { "is_admin": false, "metas": [] },
                 },
             )
             .upsert(true)

src/db/models.rs

@@ -1,74 +0,0 @@
-// Generated by diesel_ext
-
-#![allow(unused)]
-#![allow(clippy::all)]
-
-use crate::db::schema::*;
-
-use chrono::offset::Utc;
-use chrono::DateTime;
-use chrono::NaiveDateTime;
-use diesel::prelude::*;
-#[derive(Queryable, Debug, Identifiable)]
-#[diesel(table_name = events)]
-pub struct Event {
-    pub id: i32,
-    pub time: DateTime<Utc>,
-}
-
-#[derive(Queryable, Debug, Identifiable)]
-#[diesel(table_name = literals)]
-pub struct Literal {
-    pub id: i32,
-    pub token: String,
-    pub value: String,
-}
-
-#[derive(Queryable, Debug, Identifiable)]
-#[diesel(table_name = media)]
-pub struct Media {
-    pub id: i32,
-    pub token: String,
-    pub media_type: String,
-    pub file_id: String,
-    pub media_group_id: Option<String>,
-}
-
-#[derive(Queryable, Debug, Identifiable)]
-#[diesel(table_name = messages)]
-pub struct Message {
-    pub id: i32,
-    pub chat_id: i64,
-    pub message_id: i64,
-    pub token: String,
-}
-
-#[derive(Queryable, Debug, Identifiable)]
-#[diesel(table_name = reservations)]
-pub struct Reservation {
-    pub id: i32,
-    pub user_id: i64,
-    pub entered_name: String,
-    pub booked_time: NaiveDateTime,
-    pub event_id: i32,
-    pub status: String,
-}
-
-#[derive(Queryable, Debug, Identifiable)]
-#[diesel(primary_key(chat_id))]
-#[diesel(table_name = teloxide_dialogues)]
-pub struct TeloxideDialogue {
-    pub chat_id: i64,
-    pub dialogue: Vec<u8>,
-}
-
-#[derive(Queryable, Debug)]
-#[diesel(table_name = users)]
-pub struct User {
-    pub id: i64,
-    pub is_admin: bool,
-    pub first_name: String,
-    pub last_name: Option<String>,
-    pub username: Option<String>,
-    pub language_code: Option<String>,
-}

src/db/schema.rs

@@ -1,84 +0,0 @@
-// @generated automatically by Diesel CLI.
-
-diesel::table! {
-    events (id) {
-        id -> Int4,
-        time -> Timestamptz,
-    }
-}
-
-diesel::table! {
-    literals (id) {
-        id -> Int4,
-        #[max_length = 255]
-        token -> Varchar,
-        value -> Text,
-    }
-}
-
-diesel::table! {
-    media (id) {
-        id -> Int4,
-        token -> Varchar,
-        media_type -> Varchar,
-        file_id -> Varchar,
-        media_group_id -> Nullable<Varchar>,
-    }
-}
-
-diesel::table! {
-    messages (id) {
-        id -> Int4,
-        chat_id -> Int8,
-        message_id -> Int8,
-        #[max_length = 255]
-        token -> Varchar,
-    }
-}
-
-diesel::table! {
-    reservations (id) {
-        id -> Int4,
-        user_id -> Int8,
-        #[max_length = 255]
-        entered_name -> Varchar,
-        booked_time -> Timestamp,
-        event_id -> Int4,
-        status -> Varchar,
-    }
-}
-
-diesel::table! {
-    teloxide_dialogues (chat_id) {
-        chat_id -> Int8,
-        dialogue -> Bytea,
-    }
-}
-
-diesel::table! {
-    users (id) {
-        id -> Int8,
-        is_admin -> Bool,
-        #[max_length = 255]
-        first_name -> Varchar,
-        #[max_length = 255]
-        last_name -> Nullable<Varchar>,
-        #[max_length = 255]
-        username -> Nullable<Varchar>,
-        #[max_length = 10]
-        language_code -> Nullable<Varchar>,
-    }
-}
-
-diesel::joinable!(reservations -> events (event_id));
-diesel::joinable!(reservations -> users (user_id));
-
-diesel::allow_tables_to_appear_in_same_query!(
-    events,
-    literals,
-    media,
-    messages,
-    reservations,
-    teloxide_dialogues,
-    users,
-);

src/main.rs

@@ -3,8 +3,9 @@ pub mod db;
 pub mod mongodb_storage;
 pub mod utils;
 
+use db::application::Application;
 use db::callback_info::CallbackInfo;
-use log::{info, warn};
+use log::{error, info, warn};
 use std::time::Duration;
 use utils::create_callback_button;
 
@@ -14,15 +15,14 @@ use crate::db::{CallDB, DB};
 use crate::mongodb_storage::MongodbStorage;
 
 use chrono::{DateTime, Utc};
-use chrono_tz::Asia;
 use db::DbError;
 use envconfig::Envconfig;
 use serde::{Deserialize, Serialize};
 use teloxide::dispatching::dialogue::serializer::Json;
 use teloxide::dispatching::dialogue::{GetChatId, Serializer};
 use teloxide::types::{
-    InlineKeyboardButton, InlineKeyboardMarkup, InputFile, InputMedia, MediaKind, MessageKind,
-    ParseMode, ReplyMarkup,
+    InlineKeyboardButton, InlineKeyboardMarkup, InputFile, InputMedia, MediaKind, MessageId,
+    MessageKind, ParseMode, ReplyMarkup,
 };
 use teloxide::{
     payloads::SendMessageSetters,
@@ -40,13 +40,15 @@ pub struct Config {
     pub db_url: String,
     #[envconfig(from = "ADMIN_PASS")]
     pub admin_password: String,
+    #[envconfig(from = "ADMIN_ID")]
+    pub admin_id: u64,
 }
 
 #[derive(BotCommands, Clone)]
 #[command(rename_rule = "lowercase")]
 enum UserCommands {
     /// The first message of user
-    Start,
+    Start(String),
     /// Shows this message.
     Help,
 }
@@ -71,6 +73,7 @@ pub enum State {
         lang: String,
         is_caption_set: bool,
     },
+    EditButton,
 }
 
 #[derive(Serialize, Deserialize)]
@@ -79,6 +82,9 @@ pub enum State {
 pub enum Callback {
     MoreInfo,
     ProjectPage { id: u32 },
+    GoHome,
+    LeaveApplication,
+    AskQuestion, // Add this line for the new callback
 }
 
 type CallbackStore = CallbackInfo<Callback>;
@@ -103,6 +109,7 @@ pub enum BotError {
     TeloxideError(#[from] teloxide::RequestError),
     // TODO: not a really good to hardcode types, better to extend it later
     StorageError(#[from] mongodb_storage::MongodbStorageError<<Json as Serializer<State>>::Error>),
+    MsgTooOld(String),
 }
 
 pub type BotResult<T> = Result<T, BotError>;
@@ -143,6 +150,18 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
         .inspect(|u: Update| {
             info!("{u:#?}"); // Print the update to the console with inspect
         })
+        .branch(
+            Update::filter_callback_query()
+                .filter_async(async |q: CallbackQuery, mut db: DB| {
+                    let tguser = q.from.clone();
+                    let user = db
+                        .get_or_init_user(tguser.id.0 as i64, &tguser.first_name)
+                        .await;
+                    user.map(|u| u.is_admin).unwrap_or(false)
+                })
+                .enter_dialogue::<CallbackQuery, MongodbStorage<Json>, State>()
+                .branch(dptree::case![State::EditButton].endpoint(button_edit_callback)),
+        )
         .branch(Update::filter_callback_query().endpoint(callback_handler))
         .branch(command_handler(config))
         .branch(
@@ -186,6 +205,63 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
     Ok(())
 }
 
+async fn button_edit_callback(
+    bot: Bot,
+    mut db: DB,
+    dialogue: BotDialogue,
+    q: CallbackQuery,
+) -> BotResult<()> {
+    bot.answer_callback_query(&q.id).await?;
+
+    let id = match q.data {
+        Some(id) => id,
+        None => {
+            bot.send_message(q.from.id, "Not compatible callback to edit text on")
+                .await?;
+
+            return Ok(());
+        }
+    };
+
+    let ci = match CallbackStore::get(&mut db, &id).await? {
+        Some(ci) => ci,
+        None => {
+            bot.send_message(
+                q.from.id,
+                "Can't get button information. Maybe created not by this bot or message too old",
+            )
+            .await?;
+
+            return Ok(());
+        }
+    };
+    let literal = match ci.literal {
+        Some(l) => l,
+        None => {
+            bot.send_message(
+                q.from.id,
+                "This button is not editable (probably text is generated)",
+            )
+            .await?;
+
+            return Ok(());
+        }
+    };
+
+    let lang = "ru".to_string();
+    dialogue
+        .update(State::Edit {
+            literal,
+            lang,
+            is_caption_set: false,
+        })
+        .await?;
+
+    bot.send_message(q.from.id, "Send text of button").await?;
+
+    Ok(())
+}
+
 async fn callback_handler(bot: Bot, mut db: DB, q: CallbackQuery) -> BotResult<()> {
     bot.answer_callback_query(&q.id).await?;
 
@@ -208,24 +284,194 @@ async fn callback_handler(bot: Bot, mut db: DB, q: CallbackQuery) -> BotResult<(
 
     match callback {
         Callback::MoreInfo => {
-            answer_message(
+            let keyboard = Some(single_button_markup!(
+                create_callback_button("go_home", Callback::GoHome, &mut db).await?
+            ));
+
+            replace_message(
                 &bot,
-                q.chat_id().map(|i| i.0).unwrap_or(q.from.id.0 as i64),
                 &mut db,
-                "more_info",
-                None as Option<InlineKeyboardMarkup>,
+                q.chat_id().map(|i| i.0).unwrap_or(q.from.id.0 as i64),
+                q.message.map_or_else(
+                    || {
+                        Err(BotError::MsgTooOld(
+                            "Failed to get message id, probably message too old".to_string(),
+                        ))
+                    },
+                    |m| Ok(m.id().0),
+                )?,
+                "more_info_msg",
+                keyboard,
             )
             .await?
         }
         Callback::ProjectPage { id } => {
-            bot.send_message(q.from.id, format!("Some project No: {id}"))
-                .await?;
+            let nextproject = match db
+                .get_literal_value(&format!("project_{}_msg", id + 1))
+                .await?
+                .unwrap_or("emptyproject".into())
+                .as_str()
+            {
+                "end" | "empty" | "none" => None,
+                _ => Some(
+                    create_callback_button(
+                        "next_project",
+                        Callback::ProjectPage { id: id + 1 },
+                        &mut db,
+                    )
+                    .await?,
+                ),
+            };
+            let prevproject = match id.wrapping_sub(1) {
+                0 => None,
+                _ => Some(
+                    create_callback_button(
+                        "prev_project",
+                        Callback::ProjectPage {
+                            id: id.wrapping_sub(1),
+                        },
+                        &mut db,
+                    )
+                    .await?,
+                ),
+            };
+            let keyboard = buttons_markup!(
+                [prevproject, nextproject].into_iter().flatten(),
+                [create_callback_button("go_home", Callback::GoHome, &mut db).await?]
+            );
+
+            replace_message(
+                &bot,
+                &mut db,
+                q.chat_id().map(|i| i.0).unwrap_or(q.from.id.0 as i64),
+                q.message.map_or_else(
+                    || {
+                        Err(BotError::MsgTooOld(
+                            "Failed to get message id, probably message too old".to_string(),
+                        ))
+                    },
+                    |m| Ok(m.id().0),
+                )?,
+                &format!("project_{}_msg", id),
+                Some(keyboard),
+            )
+            .await?
+        }
+        Callback::GoHome => {
+            let keyboard = make_start_buttons(&mut db).await?;
+
+            replace_message(
+                &bot,
+                &mut db,
+                q.chat_id().map(|i| i.0).unwrap_or(q.from.id.0 as i64),
+                q.message.map_or_else(
+                    || {
+                        Err(BotError::MsgTooOld(
+                            "Failed to get message id, probably message too old".to_string(),
+                        ))
+                    },
+                    |m| Ok(m.id().0),
+                )?,
+                "start",
+                Some(keyboard),
+            )
+            .await?
+        }
+        Callback::LeaveApplication => {
+            let application = Application::new(q.from.clone()).store(&mut db).await?;
+            send_application_to_chat(&bot, &mut db, &application).await?;
+            answer_message(
+                &bot,
+                q.from.id.0 as i64,
+                &mut db,
+                "left_application_msg",
+                None as Option<InlineKeyboardMarkup>,
+            )
+            .await?;
+        }
+        Callback::AskQuestion => {
+            answer_message(
+                &bot,
+                q.from.id.0 as i64,
+                &mut db,
+                "ask_question_msg",
+                None as Option<InlineKeyboardMarkup>,
+            )
+            .await?;
         }
     };
 
     Ok(())
 }
 
+async fn send_application_to_chat(
+    bot: &Bot,
+    db: &mut DB,
+    app: &Application<teloxide::types::User>,
+) -> BotResult<()> {
+    let chat_id: i64 = match db.get_literal_value("support_chat_id").await? {
+        Some(strcid) => match strcid.parse() {
+            Ok(cid) => cid,
+            Err(err) => {
+                notify_admin(&format!(
+                    "Support chat_id should be a number. Got: {strcid}, err: {err}.\n\
+                Anyways, applied user: {:?}",
+                    app.from
+                ))
+                .await;
+                return Ok(());
+            }
+        },
+        None => {
+            notify_admin(&format!(
+                "support_chat_id is not set!!!\nAnyways, applied user: {:?}",
+                app.from
+            ))
+            .await;
+            return Ok(());
+        }
+    };
+    let msg = match db.get_literal_value("application_format").await? {
+        Some(msg) => msg
+            .replace("{user_id}", app.from.id.0.to_string().as_str())
+            .replace(
+                "{username}",
+                app.from
+                    .username
+                    .clone()
+                    .unwrap_or("Username not set".to_string())
+                    .as_str(),
+            ),
+        None => {
+            notify_admin("format for support_chat_id is not set").await;
+            return Ok(());
+        }
+    };
+
+    bot.send_message(ChatId(chat_id), msg).await?;
+
+    Ok(())
+}
+
+/// This is an emergent situation function, so it should not return any Result, but handle Results
+/// on its own
+async fn notify_admin(text: &str) {
+    let config = match Config::init_from_env() {
+        Ok(config) => config,
+        Err(err) => {
+            error!("notify_admin: Failed to get config from env, err: {err}");
+            return;
+        }
+    };
+    let bot = Bot::new(&config.bot_token);
+    match bot.send_message(UserId(config.admin_id), text).await {
+        Ok(_) => {}
+        Err(err) => {
+            error!("notify_admin: Failed to send message to admin, WHATS WRONG???, err: {err}");
+        }
+    }
+}
+
 async fn edit_msg_cmd_handler(
     bot: Bot,
     mut db: DB,
@@ -432,6 +678,7 @@ fn command_handler(
                     user.map(|u| u.is_admin).unwrap_or(false)
                 })
                 .filter_command::<AdminCommands>()
+                .enter_dialogue::<Message, MongodbStorage<Json>, State>()
                 .endpoint(admin_command_handler),
         )
 }
@@ -456,7 +703,10 @@ async fn user_command_handler(
         msg.html_text().unwrap_or("|EMPTY_MESSAGE|".into())
     );
     match cmd {
-        UserCommands::Start => {
+        UserCommands::Start(meta) => {
+            if !meta.is_empty() {
+                user.insert_meta(&mut db, &meta).await?;
+            }
             let mut db2 = db.clone();
             answer_message(
                 &bot,
@@ -603,32 +853,94 @@ async fn answer_message<RM: Into<ReplyMarkup>>(
     Ok(())
 }
 
-async fn make_start_buttons(db: &mut DB) -> BotResult<InlineKeyboardMarkup> {
-    let mut buttons: Vec<Vec<InlineKeyboardButton>> = db
-        .get_all_events()
+async fn replace_message(
+    bot: &Bot,
+    db: &mut DB,
+    chat_id: i64,
+    message_id: i32,
+    literal: &str,
+    keyboard: Option<InlineKeyboardMarkup>,
+) -> BotResult<()> {
+    let text = db
+        .get_literal_value(literal)
         .await?
-        .iter()
-        .map(|e| {
-            vec![InlineKeyboardButton::callback(
-                e.time.with_timezone(&Asia::Dubai).to_string(),
-                format!("event:{}", e._id),
-            )]
-        })
-        .collect();
-    buttons.push(vec![InlineKeyboardButton::callback(
-        "More info",
-        CallbackStore::new(Callback::MoreInfo)
-            .store(db)
-            .await?
-            .get_id(),
-    )]);
+        .unwrap_or("Please, set content of this message".into());
+    let media = db.get_media(literal).await?;
+    let (chat_id, msg_id) = match media.len() {
+        // just a text
+        0 => {
+            let msg = bot.edit_message_text(ChatId(chat_id), MessageId(message_id), text);
+            let msg = match keyboard {
+                Some(ref kbd) => msg.reply_markup(kbd.clone()),
+                None => msg,
+            };
+            let msg = msg.parse_mode(teloxide::types::ParseMode::Html);
+            info!("ENTS: {:?}", msg.entities);
+            let msg = match msg.await {
+                Ok(msg) => msg,
+                Err(teloxide::RequestError::Api(teloxide::ApiError::Unknown(errtext)))
+                    if errtext.as_str()
+                        == "Bad Request: there is no text in the message to edit" =>
+                {
+                    // fallback to sending message
+                    warn!("Fallback into sending message instead of editing because it contains media");
+                    return answer_message(bot, chat_id, db, literal, keyboard).await;
+                }
+                Err(err) => return Err(err.into()),
+            };
+
+            (msg.chat.id.0, msg.id.0)
+        }
+        // single media
+        1 => {
+            let media = &media[0]; // safe, cause we just checked len
+            let input_file = InputFile::file_id(media.file_id.to_string());
+            let media = match media.media_type.as_str() {
+                "photo" => InputMedia::Photo(teloxide::types::InputMediaPhoto::new(input_file)),
+                "video" => InputMedia::Video(teloxide::types::InputMediaVideo::new(input_file)),
+                _ => todo!(),
+            };
+            bot.edit_message_media(ChatId(chat_id), MessageId(message_id), media)
+                .await?;
+
+            let msg = bot.edit_message_caption(ChatId(chat_id), MessageId(message_id));
+            let msg = match text.as_str() {
+                "" => msg,
+                text => msg.caption(text),
+            };
+            let msg = match keyboard {
+                Some(kbd) => msg.reply_markup(kbd),
+                None => msg,
+            };
+
+            let msg = msg.parse_mode(teloxide::types::ParseMode::Html);
+            let msg = msg.await?;
+
+            (msg.chat.id.0, msg.id.0)
+        }
+        // >= 2, should use media group
+        _ => {
+            unreachable!();
+        }
+    };
+    db.set_message_literal(chat_id, msg_id, literal).await?;
+
+    Ok(())
+}
+
+async fn make_start_buttons(db: &mut DB) -> BotResult<InlineKeyboardMarkup> {
+    let mut buttons: Vec<Vec<InlineKeyboardButton>> = Vec::new();
     buttons.push(vec![
-        create_callback_button(
-            "show_projects",
-            CallbackStore::new(Callback::ProjectPage { id: 1 }),
-            db,
-        )
-        .await?,
+        create_callback_button("show_projects", Callback::ProjectPage { id: 1 }, db).await?,
+    ]);
+    buttons.push(vec![
+        create_callback_button("more_info", Callback::MoreInfo, db).await?,
+    ]);
+    buttons.push(vec![
+        create_callback_button("leave_application", Callback::LeaveApplication, db).await?,
+    ]);
+    buttons.push(vec![
+        create_callback_button("ask_question", Callback::AskQuestion, db).await?,
     ]);
 
     Ok(InlineKeyboardMarkup::new(buttons))

src/utils.rs

@@ -6,9 +6,44 @@ use crate::{
     BotResult,
 };
 
+#[macro_export]
+macro_rules! single_button_markup {
+    ($button:expr) => {
+        InlineKeyboardMarkup {
+            inline_keyboard: vec![vec![$button]],
+        }
+    };
+}
+
+#[macro_export]
+macro_rules! stacked_buttons_markup {
+    ($( $button:expr ),+) => {
+        InlineKeyboardMarkup {
+            inline_keyboard: vec![
+                $(
+                    vec![$button],
+                )*
+            ],
+        }
+    };
+}
+
+#[macro_export]
+macro_rules! buttons_markup {
+    ($( $buttons:expr ),+) => {
+        InlineKeyboardMarkup {
+            inline_keyboard: vec![
+                $(
+                    $buttons.into_iter().collect::<Vec<_>>(),
+                )*
+            ],
+        }
+    };
+}
+
 pub async fn create_callback_button<C, D>(
     literal: &str,
-    ci: CallbackInfo<C>,
+    callback: C,
     db: &mut D,
 ) -> BotResult<InlineKeyboardButton>
 where
@@ -19,10 +54,38 @@ where
         .get_literal_value(literal)
         .await?
         .unwrap_or("Please, set content of this message".into());
-    let ci = ci.store(db).await?;
+    let ci = CallbackInfo::new_with_literal(callback, literal.to_string())
+        .store(db)
+        .await?;
 
     Ok(InlineKeyboardButton::new(
         text,
         teloxide::types::InlineKeyboardButtonKind::CallbackData(ci.get_id()),
     ))
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use teloxide::types::InlineKeyboardButton;
+    use teloxide::types::InlineKeyboardMarkup;
+
+    #[test]
+    fn test_buttons_markup() {
+        let button1 = InlineKeyboardButton::new(
+            "Button 1",
+            teloxide::types::InlineKeyboardButtonKind::CallbackData("callback1".into()),
+        );
+        let button2 = InlineKeyboardButton::new(
+            "Button 2",
+            teloxide::types::InlineKeyboardButtonKind::CallbackData("callback2".into()),
+        );
+
+        let markup = buttons_markup!([button1.clone(), button2.clone()], [button1.clone()]);
+
+        assert_eq!(markup.inline_keyboard.len(), 2);
+        assert_eq!(markup.inline_keyboard[0][0].text, "Button 1");
+        assert_eq!(markup.inline_keyboard[0][1].text, "Button 2");
+        assert_eq!(markup.inline_keyboard[1][0].text, "Button 1");
+    }
+}