iris-chat 0.1.65

Iris Chat command line client and shared encrypted chat core
Documentation 
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use super::storage::SaveSnapshot;
use super::*;

// Durable app state lives in `data_dir/core.sqlite3` (managed by
// `core::storage`). The notification-extension preview cache and the
// runtime debug snapshot are still file-backed because they must be
// readable from contexts that don't open the SQLite database (the
// FCM service / iOS Notification Service Extension paths read JSON
// directly).

impl AppCore {
    pub(super) fn debug_snapshot_path(&self) -> PathBuf {
        self.data_dir.join(DEBUG_SNAPSHOT_FILENAME)
    }

    pub(super) fn load_persisted(&mut self) -> anyhow::Result<Option<PersistedState>> {
        self.app_store.delete_expired_messages(unix_now().get())?;
        self.chat_deletions = self.app_store.load_chat_deletions()?;
        self.chat_read_states = self.app_store.load_chat_read_states()?;
        self.chat_mute_states = self.app_store.load_chat_mute_states()?;
        self.chat_pin_states = self.app_store.load_chat_pin_states()?;
        self.app_store.load_state()
    }

    pub(super) fn persist_best_effort(&mut self) {
        if self.batch.depth > 0 {
            self.batch.dirty_persist = true;
            return;
        }
        self.persist_best_effort_inner();
    }

    pub(super) fn persist_best_effort_inner(&mut self) {
        if self.logged_in.is_none() {
            if let Err(error) = self.app_store.save_preferences(&self.preferences) {
                self.push_debug_log("storage.save_preferences_failed", error.to_string());
            }
            self.persist_debug_snapshot_best_effort();
            return;
        }

        if let Err(error) = self.persist_app_state() {
            self.push_debug_log("storage.save_failed", error.to_string());
        }
        self.persist_debug_snapshot_best_effort();
    }

    pub(super) fn persist_app_state(&mut self) -> anyhow::Result<()> {
        let authorization_state = self
            .logged_in
            .as_ref()
            .map(|logged_in| logged_in.authorization_state.into());
        let snapshot = SaveSnapshot {
            active_chat_id: self.active_chat_id.as_deref(),
            next_message_id: self.next_message_id,
            authorization_state,
            preferences: &self.preferences,
            owner_profiles: &self.owner_profiles,
            chat_message_ttl_seconds: &self.chat_message_ttl_seconds,
            app_keys: &self.app_keys,
            groups: &self.groups,
            group_pictures: &self.group_pictures,
            threads: &self.threads,
            seen_event_order: &self.seen_event_order,
        };
        self.app_store.save_state(&snapshot)?;
        self.ack_pending_decrypted_deliveries_after_app_persist();
        Ok(())
    }

    pub(super) fn clear_persistence_best_effort(&mut self) {
        if let Err(error) = self.app_store.clear() {
            self.push_debug_log("storage.clear_failed", error.to_string());
        }
        let debug_path = self.debug_snapshot_path();
        if debug_path.exists() {
            let _ = fs::remove_file(debug_path);
        }
    }

    pub(super) fn persist_debug_snapshot_best_effort(&mut self) {
        if self.logged_in.is_none() {
            return;
        }
        // The on-disk snapshot is a test-harness fixture (only read
        // by `core/tests`, iOS `InteropHarnessTests`, Android
        // `RealRelayHarnessTest`). Production never reads it; the
        // user-facing support bundle rebuilds it in-memory at export
        // time via `build_support_bundle()`. So we gate the
        // continuous file write to debug builds + an explicit env
        // override for the rare release-build test lane.
        if !debug_snapshot_file_writes_enabled() {
            return;
        }
        if self.debug_snapshot.write_inflight {
            self.debug_snapshot.write_dirty = true;
            return;
        }
        // Throttle: even in debug builds, every relay event /
        // protocol persist used to fan out into a full SessionManager
        // clone × N known users + a JSON write. Tests poll the file
        // with multi-second budgets, so a 5s floor is invisible to
        // them and stops the loop the release sample caught.
        let now_ms = unix_now_ms();
        if now_ms.saturating_sub(self.debug_snapshot.last_built_at_ms)
            < DEBUG_SNAPSHOT_MIN_INTERVAL_MS
        {
            self.debug_snapshot.write_dirty = true;
            return;
        }
        let snapshot = self.build_runtime_debug_snapshot();
        self.debug_snapshot.build_count = self.debug_snapshot.build_count.saturating_add(1);
        self.debug_snapshot.last_built_at_ms = now_ms;
        let path = self.debug_snapshot_path();
        let data_dir = self.data_dir.clone();

        #[cfg(target_os = "ios")]
        {
            if let Ok(bytes) = serde_json::to_vec_pretty(&snapshot) {
                let _ = fs::create_dir_all(&data_dir);
                let _ = fs::write(path, bytes);
            }
            return;
        }

        #[cfg(not(target_os = "ios"))]
        {
            self.debug_snapshot.write_inflight = true;
            self.debug_snapshot.write_dirty = false;
            self.debug_snapshot.write_generation =
                self.debug_snapshot.write_generation.wrapping_add(1);
            let generation = self.debug_snapshot.write_generation;
            let tx = self.core_sender.clone();
            self.runtime.spawn_blocking(move || {
                if let Ok(bytes) = serde_json::to_vec_pretty(&snapshot) {
                    let _ = fs::create_dir_all(&data_dir);
                    let _ = fs::write(path, bytes);
                }
                let _ = tx.send(CoreMsg::Internal(Box::new(
                    InternalEvent::DebugSnapshotWriteFinished { generation },
                )));
            });
        }
    }

    /// Read by `FfiApp::core_perf_counters` so the release gate can
    /// budget core-internal hot loops, not just FFI surface traffic.
    pub(crate) fn debug_snapshot_build_count(&self) -> u64 {
        self.debug_snapshot.build_count
    }

    #[cfg(not(target_os = "ios"))]
    pub(super) fn handle_debug_snapshot_write_finished(&mut self, generation: u64) {
        if generation != self.debug_snapshot.write_generation {
            return;
        }
        self.debug_snapshot.write_inflight = false;
        if self.debug_snapshot.write_dirty {
            self.debug_snapshot.write_dirty = false;
            self.persist_debug_snapshot_best_effort();
        }
    }
}

pub(super) fn apply_persisted_preferences(
    preferences: &mut PreferencesSnapshot,
    persisted: &PersistedPreferences,
) {
    preferences.voice_calls_enabled = persisted.voice_calls_enabled;
    preferences.video_calls_enabled = persisted.video_calls_enabled;
    preferences.call_quality = if matches!(
        persisted.call_quality.as_str(),
        "auto" | "high" | "data" | "custom"
    ) {
        persisted.call_quality.clone()
    } else {
        "auto".into()
    };
    preferences.call_max_bitrate_bps = if persisted.call_max_bitrate_bps == 0 {
        2_000_000
    } else {
        persisted.call_max_bitrate_bps.clamp(100_000, 10_000_000)
    };
    preferences.send_typing_indicators = persisted.send_typing_indicators;
    preferences.send_read_receipts = persisted.send_read_receipts;
    preferences.allow_message_deletion_by_others = persisted.allow_message_deletion_by_others;
    preferences.hide_blocked_group_messages = persisted.hide_blocked_group_messages;
    preferences.desktop_notifications_enabled = persisted.desktop_notifications_enabled;
    preferences.invite_acceptance_notifications_enabled =
        persisted.invite_acceptance_notifications_enabled;
    preferences.startup_at_login_enabled = persisted.startup_at_login_enabled;
    preferences.nearby_enabled = persisted.nearby_enabled;
    preferences.nearby_bluetooth_enabled = persisted.nearby_bluetooth_enabled;
    preferences.nearby_lan_enabled = persisted.nearby_lan_enabled;
    preferences.nearby_show_in_chat_list = persisted.nearby_show_in_chat_list;
    preferences.nearby_mailbag_enabled = persisted.nearby_mailbag_enabled;
    preferences.nostr_relay_urls = normalize_nostr_relay_urls(&persisted.nostr_relay_urls);
    preferences.image_proxy_enabled = persisted.image_proxy_enabled;
    preferences.image_proxy_fallback_enabled = persisted.image_proxy_fallback_enabled;
    preferences.image_proxy_url = persisted.image_proxy_url.clone();
    preferences.image_proxy_key_hex = persisted.image_proxy_key_hex.clone();
    preferences.image_proxy_salt_hex = persisted.image_proxy_salt_hex.clone();
    preferences.mobile_push_server_url = persisted.mobile_push_server_url.clone();
    preferences.debug_logging_enabled = persisted.debug_logging_enabled;
    preferences.accept_unknown_direct_messages = persisted.accept_unknown_direct_messages;
    preferences.accept_social_graph_direct_messages = persisted.accept_social_graph_direct_messages;
    preferences.accept_overmuted_direct_messages = persisted.accept_overmuted_direct_messages;
    preferences.muted_chat_ids = persisted.muted_chat_ids.clone();
    preferences.muted_chat_ids.sort();
    preferences.muted_chat_ids.dedup();
    preferences.timed_chat_mutes = persisted.timed_chat_mutes.clone();
    preferences.silent_mention_chat_ids = persisted.silent_mention_chat_ids.clone();
    preferences
        .timed_chat_mutes
        .retain(|mute| mute.until_secs > unix_now().get());
    chat_settings::normalize_timed_chat_mutes(&mut preferences.timed_chat_mutes);
    preferences.pinned_chat_ids = persisted.pinned_chat_ids.clone();
    preferences.pinned_chat_ids.sort();
    preferences.pinned_chat_ids.dedup();
    preferences.blocked_owner_pubkeys = persisted.blocked_owner_pubkeys.clone();
    preferences.blocked_owner_pubkeys.sort();
    preferences.blocked_owner_pubkeys.dedup();
    preferences.accepted_owner_pubkeys = persisted.accepted_owner_pubkeys.clone();
    preferences.accepted_owner_pubkeys.sort();
    preferences.accepted_owner_pubkeys.dedup();
}