refactor: cover the edit/answer surface in MediaSender, test the button flows

docs/architecture-refactor.md §3 sketched the trait with "按需扩展:
edit_message_caption / delete_message / answer_callback_query …", but only the
five send methods landed, so `callback.rs` and the edit-before-forward caption
swap were stuck on the concrete `Bot` and remained untested (AGENTS.md still
lists callback.rs as untestable).

- `MediaSender` gains `answer_callback_query`, `edit_message_caption` (HTML
  parse mode baked in, every caller uses it) and `delete_message`; the mock
  records call order plus the texts, captions and answer toasts, so tests can
  assert what the user saw.
- `send_message` now returns the sent message id instead of the whole
  `Message`: the only consumer of the value is the edit-before-forward prompt
  (which keys its record by it), and returning a `Message` forced every mock
  to build a teloxide type. `reply`/`reply_html` follow.
- `callback.rs`: the dptree entry only unpacks the update; `handle_callback`
  takes plain values + `&AppContext`. `handlers/mod.rs::edit_message_handler`
  likewise takes the values the reply carries. Admin/setup APIs
  (`get_chat`, `get_chat_administrators`, `get_me`, `set_my_commands`) stay on
  the concrete `Bot`: they are not user flows worth a trait.
- The scripted mock moves to `parking_lot::Mutex` (no poisoning unwraps).

Tests: +11 (template button, forward ok/no-channel/retryable, expired+unknown
prompt, caption swap via template, escaping of user text into the caption,
failed swap still consuming the reply, prompt record written by post_send).
fmt/clippy clean, 70 + 69 tests pass.
This commit is contained in:
2026-09-17 01:31:30 +08:00
parent c2d7c8406e
commit 0a9ff58a69
5 changed files with 576 additions and 108 deletions
+252 -61
View File
@@ -1,56 +1,76 @@
//! Callback query handling: the edit-before-forward prompt's `"forward"` and
//! `"template|<name>"` buttons.
//!
//! [`callback_query_handler`] is the dptree entry; it only pulls the plain
//! values out of the teloxide update and hands them to [`handle_callback`],
//! which holds the button logic and is driven directly by tests.
use super::{CHAT_STORE, CONFIG, TASK_QUEUE};
use crate::ctx::AppContext;
use crate::db::unix_now;
use crate::send::{self, Task};
use teloxide::RequestError;
use teloxide::prelude::*;
use teloxide::types::{CallbackQuery, ChatId, MessageId, ParseMode};
use teloxide::types::{CallbackQuery, CallbackQueryId, MessageId};
/// The `"forward"` button's data.
const FORWARD: &str = "forward";
/// Prefix of a template button's data: `"template|<name>"`.
const TEMPLATE_PREFIX: &str = "template|";
pub async fn callback_query_handler(bot: Bot, query: CallbackQuery) -> Result<(), RequestError> {
let callback_query_id = query.id;
let data = query.data.clone();
let Some(message) = &query.message else {
return respond(());
};
let chat_id = message.chat().id.0;
let prompt_message_id = message.id().0 as i64;
let ttl_secs = CONFIG.edit_message_ttl.as_secs() as i64;
let chat_data = CHAT_STORE.get(chat_id).await;
let Some(data) = query.data.clone() else {
return respond(());
};
let ctx = AppContext::from_statics(&bot);
handle_callback(
&ctx,
query.id.clone(),
message.chat().id.0,
message.id().0 as i64,
&data,
)
.await;
respond(())
}
/// Handles one button press on the edit-before-forward prompt.
async fn handle_callback(
ctx: &AppContext<'_>,
callback_query_id: CallbackQueryId,
chat_id: i64,
prompt_message_id: i64,
data: &str,
) {
let ttl_secs = ctx.config.edit_message_ttl.as_secs() as i64;
let chat_data = ctx.chat_store.get(chat_id).await;
let edit = chat_data.edit_message.get(&prompt_message_id).cloned();
let Some(edit) = edit else {
log::debug!(
"callback from {}: no edit record for prompt {prompt_message_id}",
chat_id
);
bot.answer_callback_query(callback_query_id)
.text("Expired")
.await?;
return respond(());
log::debug!("callback from {chat_id}: no edit record for prompt {prompt_message_id}");
let _ = ctx
.sender
.answer_callback_query(callback_query_id, Some("Expired".to_string()))
.await;
return;
};
// Lazy expiry: a stale record (past the TTL, not yet swept) is dropped.
if edit.created_at + ttl_secs <= unix_now() {
CHAT_STORE
ctx.chat_store
.update(chat_id, |data| {
data.edit_message.remove(&prompt_message_id);
})
.await;
bot.answer_callback_query(callback_query_id)
.text("Expired")
.await?;
return respond(());
let _ = ctx
.sender
.answer_callback_query(callback_query_id, Some("Expired".to_string()))
.await;
return;
}
let Some(data) = data else {
return respond(());
};
log::info!(
"callback from {} on prompt {prompt_message_id}: {data}",
chat_id
);
if data == "forward" {
let ctx = crate::ctx::AppContext::from_statics(&bot);
log::info!("callback from {chat_id} on prompt {prompt_message_id}: {data}");
if data == FORWARD {
match chat_data.forward_channel_id {
Some(channel_id) => {
let forward_task = Task::ForwardMessages {
@@ -60,62 +80,72 @@ pub async fn callback_query_handler(bot: Bot, query: CallbackQuery) -> Result<()
notify_chat_id: Some(chat_id),
notify_message_id: Some(prompt_message_id),
};
match send::forward_messages(&ctx, &forward_task).await {
let (answer, settled) = match send::forward_messages(ctx, &forward_task).await {
Ok(()) => {
log::info!(
"forwarded {} message(s) to channel {channel_id}",
edit.forward_message_ids.len()
);
bot.answer_callback_query(callback_query_id)
.text("✅ Forwarded")
.await?;
let _ = bot
.delete_message(ChatId(chat_id), MessageId(prompt_message_id as i32))
.await;
CHAT_STORE
.update(chat_id, |data| {
data.edit_message.remove(&prompt_message_id);
})
.await;
("✅ Forwarded".to_string(), true)
}
Err(send::SendError::Retryable {
delay_seconds,
task,
}) => {
log::info!("forward queued for retry in {delay_seconds:.1}s");
send::enqueue_retry(&TASK_QUEUE, *task, delay_seconds).await;
bot.answer_callback_query(callback_query_id)
.text("Forward queued for retry.")
.await?;
send::enqueue_retry(ctx.task_queue, *task, delay_seconds).await;
("Forward queued for retry.".to_string(), false)
}
Err(send::SendError::Permanent { message, .. }) => {
log::error!("forward failed permanently: {message}");
bot.answer_callback_query(callback_query_id)
.text(format!("Forward failed: {message}"))
.await?;
(format!("Forward failed: {message}"), false)
}
};
if settled {
// The prompt is done: drop it and its record.
let _ = ctx
.sender
.delete_message(ChatId(chat_id), MessageId(prompt_message_id as i32))
.await;
ctx.chat_store
.update(chat_id, |data| {
data.edit_message.remove(&prompt_message_id);
})
.await;
}
let _ = ctx
.sender
.answer_callback_query(callback_query_id, Some(answer))
.await;
}
None => {
log::debug!("forward callback without a forward channel set");
bot.answer_callback_query(callback_query_id)
.text("No forward channel set.")
.await?;
let _ = ctx
.sender
.answer_callback_query(
callback_query_id,
Some("No forward channel set.".to_string()),
)
.await;
}
}
return respond(());
return;
}
if let Some(name) = data.strip_prefix("template|") {
if let Some(name) = data.strip_prefix(TEMPLATE_PREFIX) {
if let Some(template_html) = chat_data.template.get(name).cloned()
&& let Some(first_forward_id) = edit.forward_message_ids.first().copied()
{
// Raw template including the [] placeholder (Python parity).
let _ = bot
.edit_message_caption(ChatId(chat_id), MessageId(first_forward_id as i32))
.caption(template_html)
.parse_mode(ParseMode::Html)
let _ = ctx
.sender
.edit_message_caption(
ChatId(chat_id),
MessageId(first_forward_id as i32),
template_html,
)
.await;
CHAT_STORE
ctx.chat_store
.update(chat_id, |data| {
if let Some(entry) = data.edit_message.get_mut(&prompt_message_id) {
entry.template = name.to_string();
@@ -124,7 +154,168 @@ pub async fn callback_query_handler(bot: Bot, query: CallbackQuery) -> Result<()
.await;
log::info!("template '{name}' applied to prompt {prompt_message_id}");
}
bot.answer_callback_query(callback_query_id).await?;
let _ = ctx
.sender
.answer_callback_query(callback_query_id, None)
.await;
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::ctx::test_support::TestStores;
use crate::media_sender::test_support::{MockSender, Outcome};
use crate::state::EditMessage;
use teloxide::ApiError;
/// The edit-before-forward prompt's message id in these tests.
const PROMPT_ID: i64 = 7;
/// The message the prompt refers to (the one whose caption is swapped).
const FORWARDED_ID: i64 = 9;
fn api_error() -> RequestError {
RequestError::Api(ApiError::Unknown("Bad Request: chat not found".into()))
}
fn callback_id() -> CallbackQueryId {
CallbackQueryId("cb-1".to_string())
}
/// Seeds a live prompt record plus a forward channel and a template;
/// `created_at` backdates the record for the expiry cases.
async fn seed_prompt(ctx: &AppContext<'_>, created_at: i64) {
ctx.chat_store
.update(1, |data| {
data.forward_channel_id = Some(2);
data.template
.insert("tpl".to_string(), "<b>[]</b>".to_string());
data.edit_message.insert(
PROMPT_ID,
EditMessage {
url: "https://x.com/u/status/1".into(),
chat_id: 1,
forward_message_ids: vec![FORWARDED_ID],
template: String::new(),
created_at,
},
);
})
.await;
}
#[tokio::test]
async fn template_button_swaps_the_caption_and_records_the_choice() {
let sender = MockSender::scripted(vec![Outcome::EditOk], api_error);
let stores = TestStores::new();
let ctx = stores.ctx(&sender);
seed_prompt(&ctx, crate::db::unix_now()).await;
handle_callback(&ctx, callback_id(), 1, PROMPT_ID, "template|tpl").await;
assert_eq!(
sender.calls(),
vec!["edit_message_caption", "answer_callback_query"]
);
// The raw template, including the [] the user edits into.
assert_eq!(sender.captions(), vec!["<b>[]</b>"]);
assert_eq!(sender.answers(), vec![None]);
let data = ctx.chat_store.get(1).await;
assert_eq!(data.edit_message[&PROMPT_ID].template, "tpl");
}
#[tokio::test]
async fn forward_button_copies_then_clears_the_prompt() {
let sender = MockSender::scripted(vec![Outcome::CopyOk], api_error);
let stores = TestStores::new();
let ctx = stores.ctx(&sender);
seed_prompt(&ctx, crate::db::unix_now()).await;
handle_callback(&ctx, callback_id(), 1, PROMPT_ID, "forward").await;
assert_eq!(
sender.calls(),
vec!["copy_messages", "delete_message", "answer_callback_query"]
);
assert_eq!(sender.answers(), vec![Some("✅ Forwarded".to_string())]);
assert!(
ctx.chat_store.get(1).await.edit_message.is_empty(),
"a settled prompt must drop its record"
);
}
#[tokio::test]
async fn forward_without_a_channel_is_reported() {
let sender = MockSender::scripted(vec![], api_error);
let stores = TestStores::new();
let ctx = stores.ctx(&sender);
seed_prompt(&ctx, crate::db::unix_now()).await;
ctx.chat_store
.update(1, |data| data.forward_channel_id = None)
.await;
handle_callback(&ctx, callback_id(), 1, PROMPT_ID, "forward").await;
assert_eq!(sender.calls(), vec!["answer_callback_query"]);
assert_eq!(
sender.answers(),
vec![Some("No forward channel set.".to_string())]
);
}
#[tokio::test]
async fn retryable_forward_is_queued_and_keeps_the_prompt() {
use teloxide::types::Seconds;
let sender = MockSender::scripted(vec![Outcome::CopyErr], || {
RequestError::RetryAfter(Seconds::from_seconds(7))
});
let stores = TestStores::new();
let ctx = stores.ctx(&sender);
seed_prompt(&ctx, crate::db::unix_now()).await;
handle_callback(&ctx, callback_id(), 1, PROMPT_ID, "forward").await;
assert_eq!(
sender.calls(),
vec!["copy_messages", "answer_callback_query"]
);
assert_eq!(
sender.answers(),
vec![Some("Forward queued for retry.".to_string())]
);
assert_eq!(stores.queued_tasks().await, 1);
// The prompt is not settled: the queued retry still needs the record.
assert!(
ctx.chat_store
.get(1)
.await
.edit_message
.contains_key(&PROMPT_ID)
);
}
#[tokio::test]
async fn unknown_and_expired_prompts_answer_expired() {
let sender = MockSender::scripted(vec![], api_error);
let stores = TestStores::new();
let ctx = stores.ctx(&sender);
// No record at all.
handle_callback(&ctx, callback_id(), 1, PROMPT_ID, "forward").await;
assert_eq!(sender.answers(), vec![Some("Expired".to_string())]);
// A record past its TTL (nothing swept it yet) is dropped on use.
let stale = crate::db::unix_now() - ctx.config.edit_message_ttl.as_secs() as i64 - 1;
seed_prompt(&ctx, stale).await;
handle_callback(&ctx, callback_id(), 1, PROMPT_ID, "forward").await;
assert_eq!(
sender.answers(),
vec![Some("Expired".to_string()), Some("Expired".to_string())]
);
assert!(
ctx.chat_store.get(1).await.edit_message.is_empty(),
"the expired record must be dropped"
);
assert_eq!(sender.calls(), vec!["answer_callback_query"; 2]);
}
respond(())
}