feat: add waveform download and storage.

This commit is contained in:
2026-04-14 02:15:33 -04:00
parent b384ba66d1
commit edb4698bfb
5 changed files with 195 additions and 7 deletions
+58 -1
View File
@@ -445,8 +445,19 @@ class AchSession:
# ── Persist to SQLite DB ─────────────────────────────────────
_session_start = datetime.datetime.now()
try:
# Build waveform blobs for events that have full raw_samples
_waveform_blobs = {}
for _ev in new_events:
if _ev._waveform_key and _ev.raw_samples:
_blob = _build_waveform_blob(_ev)
if _blob:
_waveform_blobs[_ev._waveform_key.hex()] = _blob
if _waveform_blobs:
log.info(" [DB] waveform blobs prepared: %d", len(_waveform_blobs))
_ev_ins, _ev_skip = self.db.insert_events(
new_events, serial=serial or self.peer, session_id=None
new_events, serial=serial or self.peer, session_id=None,
waveform_blobs=_waveform_blobs,
)
_ml_ins, _ml_skip = self.db.insert_monitor_log(
new_monitor_entries, session_id=None
@@ -599,6 +610,52 @@ def _event_to_dict(e: Event) -> dict:
}
def _build_waveform_blob(e: Event) -> Optional[str]:
"""
Serialise a downloaded event's full waveform data as a JSON string for
storage in the DB waveform_blob column.
Returns the same shape as GET /device/event/{index}/waveform so the
waveform viewer can consume either source without modification.
Returns None if the event has no raw_samples (e.g. metadata-only download).
"""
raw = e.raw_samples or {}
if not raw:
return None
pv = e.peak_values
peak_values = None
if pv:
peak_values = {
"tran": pv.tran,
"vert": pv.vert,
"long": pv.long,
"micl_psi": pv.micl,
"peak_vector_sum": pv.peak_vector_sum,
}
ts = e.timestamp
timestamp_str = (
f"{ts.year:04d}-{ts.month:02d}-{ts.day:02d}T"
f"{ts.hour:02d}:{ts.minute:02d}:{ts.second:02d}"
if ts else None
)
blob = {
"index": e.index,
"record_type": e.record_type,
"timestamp": timestamp_str,
"total_samples": e.total_samples,
"pretrig_samples": e.pretrig_samples,
"rectime_seconds": e.rectime_seconds,
"samples_decoded": len(raw.get("Tran", [])),
"sample_rate": e.sample_rate,
"peak_values": peak_values,
"channels": raw,
}
return json.dumps(blob)
def _monitor_log_entry_to_dict(e: MonitorLogEntry) -> dict:
return {
"key": e.key,
+40 -2
View File
@@ -81,6 +81,7 @@ CREATE TABLE IF NOT EXISTS events (
sample_rate INTEGER,
record_type TEXT, -- "single_shot" | "continuous"
false_trigger INTEGER NOT NULL DEFAULT 0, -- 0=no, 1=yes (manual flag)
waveform_blob TEXT, -- JSON waveform response (channels + metadata)
created_at TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
UNIQUE(serial, timestamp)
);
@@ -216,6 +217,17 @@ class SeismoDb:
""")
log.info("_migrate: monitor_log table rebuilt OK")
# Migration 3: add waveform_blob column to events (nullable TEXT).
# ALter TABLE ADD COLUMN is safe in SQLite for nullable columns — no rebuild needed.
col_names = {
row[1]
for row in conn.execute("PRAGMA table_info(events)").fetchall()
}
if "waveform_blob" not in col_names:
log.info("_migrate: adding waveform_blob column to events")
conn.execute("ALTER TABLE events ADD COLUMN waveform_blob TEXT")
log.info("_migrate: waveform_blob column added OK")
@staticmethod
def _iso(dt: Optional[datetime.datetime]) -> Optional[str]:
return dt.isoformat() if dt is not None else None
@@ -282,12 +294,19 @@ class SeismoDb:
*,
serial: str,
session_id: Optional[str] = None,
waveform_blobs: Optional[dict[str, str]] = None,
) -> tuple[int, int]:
"""
Insert triggered events. Silently skips duplicates (serial+timestamp).
Returns (inserted, skipped).
waveform_blobs: optional mapping of waveform_key (hex str) → JSON string
containing the full waveform response (channels + metadata). When provided,
the blob is stored alongside the event row and is retrievable via
GET /db/events/{id}/waveform.
"""
inserted = skipped = 0
blobs = waveform_blobs or {}
with self._connect() as conn:
for ev in events:
key = ev._waveform_key.hex() if ev._waveform_key else None
@@ -307,6 +326,7 @@ class SeismoDb:
pv = ev.peak_values
pi = ev.project_info
blob = blobs.get(key)
try:
conn.execute(
@@ -315,8 +335,8 @@ class SeismoDb:
(id, serial, waveform_key, session_id, timestamp,
tran_ppv, vert_ppv, long_ppv, peak_vector_sum, mic_ppv,
project, client, operator, sensor_location,
sample_rate, record_type)
VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
sample_rate, record_type, waveform_blob)
VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
""",
(
self._new_id(), serial, key, session_id, ts,
@@ -331,6 +351,7 @@ class SeismoDb:
pi.sensor_location if pi else None,
ev.sample_rate,
ev.record_type,
blob,
),
)
inserted += 1
@@ -387,6 +408,23 @@ class SeismoDb:
)
return cur.rowcount > 0
def get_event_waveform(self, event_id: str) -> tuple[bool, Optional[str]]:
"""
Return (found, waveform_blob) for a given event UUID.
found=False means the event row doesn't exist.
found=True, blob=None means the event exists but has no stored waveform
(e.g. downloaded before waveform storage was implemented).
found=True, blob=<str> means the full waveform JSON is available.
"""
with self._connect() as conn:
row = conn.execute(
"SELECT waveform_blob FROM events WHERE id = ?", (event_id,)
).fetchone()
if row is None:
return False, None
return True, row["waveform_blob"]
# ── Monitor log ───────────────────────────────────────────────────────────
def insert_monitor_log(
+35
View File
@@ -1006,6 +1006,41 @@ def db_set_false_trigger(
return {"status": "ok", "event_id": event_id, "false_trigger": value}
@app.get("/db/events/{event_id}/waveform")
def db_event_waveform(event_id: str) -> dict:
"""
Return the stored waveform blob for a DB event.
The response shape is identical to GET /device/event/{index}/waveform so the
waveform viewer can consume either source without modification:
- total_samples, pretrig_samples, rectime_seconds, samples_decoded
- sample_rate
- peak_values (tran, vert, long, micl_psi, peak_vector_sum)
- channels ({"Tran": [...], "Vert": [...], "Long": [...], "Mic": [...]})
Returns 404 if the event doesn't exist, 422 if the event exists but has no
stored waveform (downloaded before waveform storage was implemented).
"""
import json as _json
db = _get_db()
found, blob_str = db.get_event_waveform(event_id)
if not found:
raise HTTPException(status_code=404, detail=f"Event {event_id} not found")
if blob_str is None:
raise HTTPException(
status_code=422,
detail=(
f"Event {event_id} has no stored waveform. "
"Waveform storage requires ACH server v0.11+. "
"Re-download the event from the device to backfill."
),
)
try:
return _json.loads(blob_str)
except Exception as exc:
raise HTTPException(status_code=500, detail=f"Waveform blob corrupt: {exc}") from exc
@app.get("/db/monitor_log")
def db_monitor_log(
serial: Optional[str] = Query(None, description="Filter by unit serial"),
+15
View File
@@ -548,6 +548,18 @@
.ft-toggle-btn:hover { border-color: var(--red); color: var(--red); }
.ft-toggle-btn.flagged { border-color: var(--red); color: var(--red); background: rgba(248,81,73,0.1); }
.wf-btn {
background: none;
border: 1px solid var(--border);
border-radius: var(--radius);
color: var(--accent);
cursor: pointer;
font-size: 13px;
padding: 1px 6px;
line-height: 1;
}
.wf-btn:hover { background: rgba(56,139,253,0.15); border-color: var(--accent); }
.db-empty {
color: var(--text-mute);
font-size: 13px;
@@ -921,6 +933,7 @@
<table class="db-table" id="hist-table">
<thead>
<tr>
<th></th>
<th>Timestamp</th>
<th>Serial</th>
<th>Tran (in/s)</th>
@@ -1744,7 +1757,9 @@ async function loadHistory() {
const tr = document.createElement('tr');
const pvs = ev.peak_vector_sum;
const maxPPV = Math.max(ev.tran_ppv ?? 0, ev.vert_ppv ?? 0, ev.long_ppv ?? 0);
const waveformUrl = `${api()}/waveform?db_id=${encodeURIComponent(ev.id)}&api_base=${encodeURIComponent(api())}`;
tr.innerHTML = `
<td><button class="wf-btn" onclick="window.open('${waveformUrl}','_blank')" title="View waveform">〜</button></td>
<td>${_fmtTs(ev.timestamp)}</td>
<td class="td-key">${ev.serial ?? '—'}</td>
<td class="${_ppvClass(ev.tran_ppv)}">${_ppvFmt(ev.tran_ppv)}</td>
+45 -2
View File
@@ -244,6 +244,46 @@
let eventList = []; // populated from /device/events after connect
let currentEventIndex = 0;
// ── DB mode: opened via ?db_id=<uuid>&api_base=<url> from History tab ────────
const _urlParams = new URLSearchParams(window.location.search);
const _dbId = _urlParams.get('db_id');
const _dbApiBase = (_urlParams.get('api_base') || '').replace(/\/$/, '');
async function _loadFromDb() {
const apiBase = _dbApiBase || document.getElementById('api-base').value.replace(/\/$/, '');
setStatus('Loading waveform from database…', 'loading');
document.getElementById('unit-bar').style.display = 'none';
// Hide live-device controls — not relevant in DB mode
document.querySelector('header .conn-group').style.display = 'none';
const url = `${apiBase}/db/events/${encodeURIComponent(_dbId)}/waveform`;
let data;
try {
const resp = await fetch(url);
if (!resp.ok) {
const err = await resp.json().catch(() => ({ detail: resp.statusText }));
throw new Error(err.detail || resp.statusText);
}
data = await resp.json();
} catch (e) {
setStatus(`Error: ${e.message}`, 'error');
return;
}
lastData = data;
renderWaveform(data);
}
// Auto-load when opened with db_id param
window.addEventListener('DOMContentLoaded', () => {
if (_dbId) {
// Pre-fill api-base if provided
if (_dbApiBase) {
document.getElementById('api-base').value = _dbApiBase;
}
_loadFromDb();
}
});
function setStatus(msg, cls = '') {
const bar = document.getElementById('status-bar');
bar.textContent = msg;
@@ -404,8 +444,11 @@
bar.innerHTML = '';
bar.className = 'ok';
const ts = data.timestamp;
if (ts) {
bar.textContent = `Event #${data.index} — ${ts.display} `;
const tsDisplay = ts
? (typeof ts === 'string' ? ts : (ts.display ?? JSON.stringify(ts)))
: null;
if (tsDisplay) {
bar.textContent = `Event #${data.index} — ${tsDisplay} `;
} else {
bar.textContent = `Event #${data.index} `;
}