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//! Detail-view background fetches. Ten `spawn_detail_*` helpers, one per
//! lazily-loaded slice of the per-env Detail view: the Health tab's
//! alarms + recent-versions, the Logs tab's log-group discovery + log
//! tail, the Config tab's env-vars + tags, the Metrics tab series, the
//! Queue tab's queue stats, the Events tab, and the Instances tab.
//!
//! Each is fired when the operator opens the relevant tab (or on Detail
//! open for the eager ones), routes its result through a typed
//! `AppMsg::Detail*` variant, and the handler in `msg.rs` writes it into
//! the active `DetailState`. Several carry a `--demo` short-circuit that
//! injects `demo_fixture` data so VHS recordings show a populated view
//! instead of stub AWS errors.
//!
//! 0.21+ lift: cluster gathered out of `src/app.rs` (where the ten
//! methods were scattered across six locations) as the final step of the
//! `spawn_*` clusters refactor. Pure relocation; fn → pub(super) for the
//! app-module callers. No behaviour change.
use super::{collect_tail_logs, flatten_err, App, AppMsg, LogTailStage};
impl App {
/// Detail-Health-tab alarms fetch. Mirrors `spawn_why_red_alarms`
/// but lands on `AppMsg::DetailAlarms` so the result populates the
/// Detail view's `cw_alarms` field instead of the `:why` overlay
/// state. The Health tab + `:why` now share the *same* underlying
/// AWS call shape but each lands on its own typed result so a stale
/// fetch from a closed overlay can't clobber the Detail view.
pub(super) fn spawn_detail_alarms(&mut self, env_name: String) {
if let Some(d) = self.detail.as_mut() {
d.loading_cw_alarms = true;
}
// Demo-mode short-circuit (same pattern as
// spawn_detail_instances / spawn_detail_events). Inject
// fixture alarms so Detail/Health doesn't show an
// ugly "error: DescribeAlarms failed" row.
if self.demo_mode {
let result = Ok(crate::demo_fixture::alarms_for_env(&env_name));
let gen = self.generation;
let _ = self.msg_tx.send(AppMsg::DetailAlarms {
gen,
env_name,
result,
});
return;
}
let env_for_msg = env_name.clone();
let dims = self.cfg.alarm_dimensions.clone();
self.spawn_aws_in(
self.detail_client(),
"list_alarms_for_env",
move |aws| async move { aws.list_alarms_for_env(&env_name, &dims).await },
move |gen, result| AppMsg::DetailAlarms {
gen,
env_name: env_for_msg,
result,
},
);
}
/// Detail-Health-tab recent-versions fetch. Same shape as
/// `spawn_why_red_deploys` but lands on `AppMsg::DetailRecentVersions`.
pub(super) fn spawn_detail_recent_versions(&mut self, app_name: String, env_name: String) {
if let Some(d) = self.detail.as_mut() {
d.loading_recent_versions = true;
}
if self.demo_mode {
let result = Ok(crate::demo_fixture::deploys_for_app(&app_name));
let gen = self.generation;
let _ = self.msg_tx.send(AppMsg::DetailRecentVersions {
gen,
env_name,
result,
});
return;
}
self.spawn_aws_in(
self.detail_client(),
"list_application_versions",
move |aws| async move { aws.list_application_versions(&app_name).await },
move |gen, result| AppMsg::DetailRecentVersions {
gen,
env_name,
result,
},
);
}
pub(super) fn spawn_detail_log_groups(&mut self) {
let Some(d) = self.detail.as_ref() else {
return;
};
let env_name = d.env_name.clone();
let client = self.detail_client();
let tx = self.msg_tx.clone();
let gen = self.generation;
tokio::spawn(async move {
// We don't surface fetch errors here — failure just means we
// can't tell whether CW Logs are configured, in which case the
// Logs tab falls back to the generic "press ^R or s" hint.
// A client that won't resolve is the same non-answer.
let groups = match client.resolve().await {
Ok(aws) => aws
.discover_env_log_groups(&env_name)
.await
.unwrap_or_default(),
Err(_) => Vec::new(),
};
let _ = tx.send(AppMsg::DetailLogGroups {
gen,
env_name,
groups,
});
});
}
pub(super) fn spawn_detail_env_vars(&mut self) {
let Some(d) = self.detail.as_ref() else {
return;
};
let app_name = d.env_snapshot.application.clone();
let env_name = d.env_name.clone();
if let Some(d) = self.detail.as_mut() {
d.loading_env_vars = true;
}
let env_for_msg = env_name.clone();
self.spawn_aws_in(
self.detail_client(),
"fetch_env_vars",
move |aws| async move { aws.fetch_env_vars(&app_name, &env_name).await },
move |gen, result| AppMsg::DetailEnvVars {
gen,
env_name: env_for_msg,
result,
},
);
}
pub(super) fn spawn_detail_tags(&mut self) {
let Some(d) = self.detail.as_ref() else {
return;
};
let Some(arn) = d.env_snapshot.arn.clone() else {
return;
};
let env_name = d.env_name.clone();
if let Some(d) = self.detail.as_mut() {
d.loading_tags = true;
}
self.spawn_aws_in(
self.detail_client(),
"list_tags",
move |aws| async move { aws.list_tags(&arn).await },
move |gen, result| AppMsg::DetailTags {
gen,
env_name,
result,
},
);
}
pub(super) fn spawn_detail_logs(&mut self, env_name: String) {
if let Some(d) = self.detail.as_mut() {
// Re-entering an in-flight tail is a refresh; reset state. Existing
// content is retained until the new fetch lands so the user keeps
// seeing the previous tail rather than a blank screen.
d.log_tail.stage = LogTailStage::Requesting;
d.log_tail.poll_attempt = 0;
d.log_tail.error = None;
}
let client = self.detail_client();
let tx = self.msg_tx.clone();
let gen = self.generation;
let env_for_msg = env_name.clone();
tokio::spawn(async move {
let result = match client.resolve().await {
Ok(aws) => collect_tail_logs(aws, env_name.clone(), tx.clone(), gen).await,
Err(e) => Err(flatten_err("cached_client", e)),
};
let _ = tx.send(AppMsg::DetailLogs {
gen,
env_name: env_for_msg,
result,
});
});
}
pub(super) fn spawn_detail_metrics(&mut self, env_name: String) {
let range = self
.detail
.as_ref()
.map(|d| d.metrics_range_secs)
.unwrap_or(3600);
if let Some(d) = self.detail.as_mut() {
d.loading_metrics = true;
d.error = None;
}
// Snapshot the custom-metrics spec list at spawn time so concurrent
// `:metric add`s don't race with the in-flight fetch.
let custom: Vec<crate::aws::CustomMetricQuery> = self
.custom_metrics
.iter()
.map(|(label, spec)| {
(
label.clone(),
spec.namespace.clone(),
spec.name.clone(),
spec.stat.clone(),
spec.dimensions.clone(),
)
})
.collect();
let client = self.detail_client();
let tx = self.msg_tx.clone();
let gen = self.generation;
let name = env_name.clone();
tokio::spawn(async move {
let aws = match client.resolve().await {
Ok(aws) => aws,
Err(e) => {
let _ = tx.send(AppMsg::DetailMetrics {
gen,
env_name,
result: Err(flatten_err("cached_client", e)),
});
return;
}
};
// Fire both queries concurrently; combine into one ordered series
// list. Built-ins come first, then user metrics in add-order so
// the operator sees their additions appended to the familiar
// four.
let (builtin, user) = tokio::join!(
aws.fetch_env_metrics(&name, range),
aws.fetch_custom_env_metrics(&name, range, &custom),
);
let result = match builtin {
Ok(mut series) => {
if let Ok(extra) = user {
series.extend(extra);
}
Ok(series)
}
Err(e) => Err(flatten_err("fetch_env_metrics", e)),
};
let _ = tx.send(AppMsg::DetailMetrics {
gen,
env_name,
result,
});
});
}
pub(super) fn spawn_detail_queues(&mut self, application_name: String, env_name: String) {
if let Some(d) = self.detail.as_mut() {
d.loading_queues = true;
d.error = None;
}
if self.demo_mode {
let result = Ok(crate::demo_fixture::worker_queues_for_env(&env_name));
let gen = self.generation;
let _ = self.msg_tx.send(AppMsg::DetailQueues {
gen,
env_name,
result,
});
return;
}
let env_for_msg = env_name.clone();
self.spawn_aws_in(
self.detail_client(),
"describe_worker_queues",
move |aws| async move {
aws.describe_worker_queues(&application_name, &env_name)
.await
},
move |gen, result| AppMsg::DetailQueues {
gen,
env_name: env_for_msg,
result,
},
);
}
pub(super) fn spawn_detail_events(&mut self, env_name: String) {
if let Some(d) = self.detail.as_mut() {
d.loading_events = true;
d.error = None;
}
// Demo-mode short-circuit: filter the fixture's fleet-wide
// events down to this env, mirror what list_events_for_env
// would have returned. Same channel + msg variant the live
// path uses, so the rest of the rendering pipeline is
// untouched.
if self.demo_mode {
let result = Ok(crate::demo_fixture::events_for_env(&env_name));
let gen = self.generation;
let _ = self.msg_tx.send(AppMsg::DetailEvents {
gen,
env_name,
result,
});
return;
}
let env_for_msg = env_name.clone();
self.spawn_aws_in(
self.detail_client(),
"list_events_for_env",
move |aws| async move { aws.list_events_for_env(&env_name, 50).await },
move |gen, result| AppMsg::DetailEvents {
gen,
env_name: env_for_msg,
result,
},
);
}
pub(super) fn spawn_detail_instances(&mut self, env_name: String) {
if let Some(d) = self.detail.as_mut() {
d.loading_instances = true;
d.error = None;
}
// Demo-mode short-circuit: synthesise the fixture's per-env
// instance list and send the result message directly. Avoids
// firing list_instances against the stub AwsClient, which
// would error and leave Detail/Instances stuck on "loading…".
if self.demo_mode {
let result = Ok(crate::demo_fixture::instances_for(&env_name));
let gen = self.generation;
let _ = self.msg_tx.send(AppMsg::DetailInstances {
gen,
env_name,
result,
});
return;
}
let env_for_msg = env_name.clone();
self.spawn_aws_in(
self.detail_client(),
"list_instances",
move |aws| async move { aws.list_instances(&env_name).await },
move |gen, result| AppMsg::DetailInstances {
gen,
env_name: env_for_msg,
result,
},
);
}
}