@@ -3,9 +3,8 @@ package com.parseable.android.ui.screens.logviewer
33import androidx.lifecycle.ViewModel
44import androidx.lifecycle.viewModelScope
55import com.parseable.android.data.escapeIdentifier
6−import com.parseable.android.data.escapeLikePattern
76import com.parseable.android.data.escapeSql
8−import com.parseable.android.data.model.*
7+import com.parseable.android.data.model.ApiResult
98import com.parseable.android.data.repository.ParseableRepository
109import dagger.hilt.android.lifecycle.HiltViewModel
1110import kotlinx.coroutines.Job
@@ -16,13 +15,8 @@ import kotlinx.coroutines.flow.asStateFlow
1615import kotlinx.coroutines.flow.update
1716import kotlinx.coroutines.isActive
1817import kotlinx.coroutines.launch
19−import kotlinx.coroutines.sync.Mutex
20−import kotlinx.coroutines.sync.withLock
2118import kotlinx.serialization.json.JsonObject
2219import kotlinx.serialization.json.jsonPrimitive
23−import java.time.Instant
24−import java.time.LocalDateTime
25−import java.time.OffsetDateTime
2620import java.time.ZoneOffset
2721import java.time.ZonedDateTime
2822import java.time.format.DateTimeFormatter
@@ -40,21 +34,10 @@ enum class TimeRange(val label: String, val minutes: Long) {
4034 CUSTOM("Custom", 0),
4135}
4236
43−/** The original (column, operator, value) a filter chip was built from. */
44−data class FilterCondition(
45− val column: String,
46− val operator: String,
47− val value: String,
48−)
49−
5037data class FilterState(
5138 val searchQuery: String = "",
5239 val activeFilters: List<String> = emptyList(),
5340 val filterClauses: List<String> = emptyList(),
54− // Structured form of each chip, index-aligned with activeFilters/filterClauses.
55− // Kept so saved filters reconstruct from real values instead of re-parsing the
56− // human-readable display string (which is ambiguous when a value contains an operator).
57− val filterConditions: List<FilterCondition> = emptyList(),
5841 val customSql: String = "",
5942 val isSearching: Boolean = false,
6043)
@@ -66,33 +49,19 @@ data class StreamingState(
6649 val currentIntervalMs: Long = 3000L,
6750)
6851
69−data class SavedFiltersState(
70− val filters: List<SavedFilter> = emptyList(),
71− val isLoading: Boolean = false,
72− val isSaving: Boolean = false,
73− val error: String? = null,
74−)
75−
7652data class LogViewerState(
7753 val streamName: String = "",
7854 val logs: List<JsonObject> = emptyList(),
79− val logKeys: List<String> = emptyList(),
8055 val columns: List<String> = emptyList(),
81− val searchableColumns: List<String> = emptyList(),
8256 val isLoading: Boolean = false,
8357 val error: String? = null,
8458 val selectedTimeRange: TimeRange = TimeRange.LAST_1H,
8559 val filters: FilterState = FilterState(),
8660 val streaming: StreamingState = StreamingState(),
87− val savedFilters: SavedFiltersState = SavedFiltersState(),
8861 val currentLimit: Int = 500,
8962 val hasMore: Boolean = false,
9063 val customStartTime: Long? = null,
9164 val customEndTime: Long? = null,
92− // Upper time bound (epoch millis) fixed at the first page of a paging session, so loadMore()
93− // doesn't slide a relative ("last N minutes") window forward as it re-queries. Null until the
94− // first refresh of a session; re-anchored whenever currentLimit resets to the initial page.
95− val pageAnchorTime: Long? = null,
9665) {
9766 // Convenience accessors for backward compatibility with Screen
9867 val searchQuery: String get() = filters.searchQuery
@@ -120,53 +89,17 @@ class LogViewerViewModel @Inject constructor(
12089 @Volatile private var streamingGeneration: Int = 0
12190 @Volatile private var lastSeenTimestamp: String? = null
12291 @Volatile private var consecutiveStreamingErrors: Int = 0
123− // True while the log list is scrolled to the top. New rows prepend at the top, so when the
124− // user is already there they see them live and the "+N new" badge must stay at 0. The badge
125− // only accumulates while the user is scrolled away, and resets when they return to the top.
126− @Volatile private var viewingTop: Boolean = true
127−
128− // Identities of rows already surfaced during the current streaming session. Used to dedupe
129− // re-fetched boundary rows. Kept INDEPENDENT of the displayed `logs` list — which is capped
130− // at STREAMING_MAX_LOGS — so that under sustained high-volume streaming, boundary rows
131− // evicted from the view are still recognized as duplicates and not prepended twice.
132− // Insertion-ordered so the oldest keys are trimmed first. Touched only from the single
133− // streaming coroutine and from startStreaming (which first cancels that coroutine).
134− private val seenStreamingKeys = LinkedHashSet<String>()
13592 private var searchJob: Job? = null
13693 private var schemaJob: Job? = null
137− private var refreshJob: Job? = null
13894
13995 companion object {
14096 private const val STREAMING_BASE_INTERVAL_MS = 3000L
14197 private const val STREAMING_MAX_INTERVAL_MS = 30000L
14298 private const val STREAMING_MAX_LOGS = 1000
143− // Remember more identities than the display cap so a row evicted from the view is still
144− // deduped on a later re-fetch. 2x the display cap covers the worst realistic overlap.
145− private const val SEEN_STREAMING_KEYS_MAX = STREAMING_MAX_LOGS * 2
14699 private const val MAX_LOAD_LIMIT = 5000
147100 private const val LOAD_MORE_INCREMENT = 500
148101 private const val MAX_STREAMING_ERRORS = 5
149102 private val ALLOWED_OPERATORS = setOf("=", "!=", "LIKE", "ILIKE", ">", "<", ">=", "<=", "IS NULL", "IS NOT NULL")
150−
151− /**
152− * Produces deterministic keys for a list of log entries so that expanded state
153− * survives list mutations (e.g., new logs prepended during streaming).
154− */
155− internal fun computeLogKeys(logs: List<JsonObject>): List<String> {
156− val seen = mutableMapOf<String, Int>()
157− return logs.map { log ->
158− // Key on the full row content (same identity used for streaming dedup, see
159− // logIdentity). Keying on only p_timestamp/p_metadata/p_tags collided for rows
160− // sharing those fields but differing in body, so the positional tiebreaker made
161− // keys shift when streaming prepended rows — corrupting expanded state and
162− // letting remember(stableKey) blocks render a stale body. The trailing counter
163− // only disambiguates genuinely identical rows, whose rendering is identical too.
164− val base = log.toString()
165− val count = seen.getOrDefault(base, 0)
166− seen[base] = count + 1
167− if (count == 0) base else "$base|$count"
168− }
169− }
170103 }
171104
172105 fun initialize(streamName: String) {
@@ -182,9 +115,8 @@ class LogViewerViewModel @Inject constructor(
182115 schemaJob = viewModelScope.launch {
183116 when (val result = repository.getStreamSchema(streamName)) {
184117 is ApiResult.Success -> {
185− val columns = result.data.fields.map { it.name }.sorted()
186− val searchable = columns.filter { !it.startsWith("p_") }
187− _state.update { it.copy(columns = columns, searchableColumns = searchable) }
118+ val columns = result.data.fields.map { it.name }
119+ _state.update { it.copy(columns = columns) }
188120 }
189121 is ApiResult.Error -> { /* Schema loading failure is non-fatal */ }
190122 }
@@ -218,11 +150,7 @@ class LogViewerViewModel @Inject constructor(
218150 }
219151
220152 fun onSearchQueryChange(query: String) {
221− // A new query invalidates the live-tail baseline and the paged-up limit, matching
222− // the time-range / custom-SQL handlers.
223− stopStreaming()
224− // Searching returns to the filter-builder query path, so drop any active custom SQL.
225− _state.update { it.copy(currentLimit = 500, filters = it.filters.copy(searchQuery = query, customSql = "", isSearching = query.isNotBlank())) }
153+ _state.update { it.copy(filters = it.filters.copy(searchQuery = query, isSearching = query.isNotBlank())) }
226154 searchJob?.cancel()
227155 searchJob = viewModelScope.launch {
228156 delay(300)
@@ -231,55 +159,28 @@ class LogViewerViewModel @Inject constructor(
231159 }
232160 }
233161
234− /**
235− * Run the current search immediately (e.g. the IME "Search" action). Cancels the pending
236− * debounce so it can't fire a second, redundant refresh ~300ms later.
237− */
238− fun submitSearch() {
239− searchJob?.cancel()
240− _state.update { it.copy(filters = it.filters.copy(isSearching = false)) }
241− stopStreaming()
242− refresh()
243− }
244−
245162 fun addFilter(column: String, operator: String, value: String) {
246− addFilterInternal(column, operator, value)
247− refresh()
248− }
249−
250− private fun addFilterInternal(column: String, operator: String, value: String) {
251163 if (operator !in ALLOWED_OPERATORS) return
252164 val safeColumn = escapeIdentifier(column)
165+ val safeValue = escapeSql(value)
253166 val clause = when (operator) {
254167 "IS NULL", "IS NOT NULL" -> "\"$safeColumn\" $operator"
255− // %/_ in the user's value must match literally, so escape the LIKE wildcards
256− // and declare the escape character. Exact comparisons keep %/_ verbatim.
257− "LIKE", "ILIKE" -> "\"$safeColumn\" $operator '%${escapeLikePattern(value)}%' ESCAPE '\\'"
258− else -> "\"$safeColumn\" $operator '${escapeSql(value)}'"
259− }
260− // IS NULL / IS NOT NULL ignore the value in both the clause and the display, so store
261− // an empty value in the structured condition too (keeps saved filters clean).
262− val conditionValue = when (operator) {
263− "IS NULL", "IS NOT NULL" -> ""
264− else -> value
168+ "LIKE", "ILIKE" -> "\"$safeColumn\" $operator '%$safeValue%'"
169+ else -> "\"$safeColumn\" $operator '$safeValue'"
265170 }
266171 val display = when (operator) {
267172 "IS NULL", "IS NOT NULL" -> "$column $operator"
268173 else -> "$column $operator $value"
269174 }
270− // A new filter invalidates the live-tail baseline and the paged-up limit.
271− stopStreaming()
272175 _state.update {
273176 it.copy(
274− currentLimit = 500,
275177 filters = it.filters.copy(
276178 filterClauses = it.filters.filterClauses + clause,
277179 activeFilters = it.filters.activeFilters + display,
278− filterConditions = it.filters.filterConditions + FilterCondition(column, operator, conditionValue),
279− customSql = "",
280180 ),
281181 )
282182 }
183+ refresh()
283184 }
284185
285186 fun removeFilter(display: String) {
@@ -289,93 +190,81 @@ class LogViewerViewModel @Inject constructor(
289190 if (index >= 0 && index < it.filters.filterClauses.size) {
290191 removed = true
291192 it.copy(
292− currentLimit = 500,
293193 filters = it.filters.copy(
294194 activeFilters = it.filters.activeFilters.filterIndexed { i, _ -> i != index },
295195 filterClauses = it.filters.filterClauses.filterIndexed { i, _ -> i != index },
296− filterConditions = it.filters.filterConditions.filterIndexed { i, _ -> i != index },
297− customSql = "",
298196 ),
299197 )
300198 } else {
301199 it
302200 }
303201 }
304− if (removed) {
305− // A changed filter set invalidates the live-tail baseline.
306− stopStreaming()
307− refresh()
308− }
202+ if (removed) refresh()
309203 }
310204
311205 fun clearFilters() {
312− stopStreaming()
313206 _state.update {
314− it.copy(currentLimit = 500, filters = it.filters.copy(activeFilters = emptyList(), filterClauses = emptyList(), filterConditions = emptyList(), customSql = "", searchQuery = "", isSearching = false))
207+ it.copy(filters = it.filters.copy(activeFilters = emptyList(), filterClauses = emptyList()))
315208 }
316209 refresh()
317210 }
318211
319212 fun executeCustomSql(sql: String) {
320− // Custom SQL changes the query basis, so cancel any pending search debounce that would
321− // otherwise fire a redundant refresh() ~300ms later. (Unlike the filter/time-range
322− // handlers, this path doesn't route through stopStreaming().)
323− searchJob?.cancel()
324− // Drop a trailing statement terminator before we append anything — otherwise
325− // "SELECT * FROM x;" would become "SELECT * FROM x; LIMIT 5000", a syntax error.
326− val trimmed = sql.trim().trimEnd(';').trim()
213+ val trimmed = sql.trim()
327214 if (!trimmed.uppercase().startsWith("SELECT")) {
328215 _state.update { it.copy(error = "Only SELECT queries are allowed") }
329216 return
330217 }
331− // Enforce a LIMIT to prevent OOM from unbounded queries. Only honor a *top-level*
332− // `LIMIT <n>` (optionally with OFFSET) anchored at the end of the statement — a
333− // LIMIT inside a subquery doesn't bound the outer result set, so matching it
334− // anywhere would let an unbounded outer query slip past the safety limit. Anchoring
335− // at the end also means a string literal like 'LIMIT EXCEEDED' can't disable it.
336− val hasTopLevelLimit =
337− Regex("(?i)\\bLIMIT\\s+\\d+(\\s+OFFSET\\s+\\d+)?\\s*$").containsMatchIn(trimmed)
338− val safeSql = if (!hasTopLevelLimit) {
218+ // Enforce a LIMIT to prevent OOM from unbounded queries
219+ val safeSql = if (!trimmed.uppercase().contains("LIMIT")) {
339220 "$trimmed LIMIT $MAX_LOAD_LIMIT"
340221 } else {
341222 trimmed
342223 }
343− // Store the custom SQL and let refresh() run it. Keeping it in state means
344− // pull-to-refresh / time-range changes re-run the custom query instead of
345− // silently replacing it with the default filter query.
346224 _state.update { it.copy(filters = it.filters.copy(customSql = safeSql), currentLimit = 500) }
347− refresh()
225+ viewModelScope.launch {
226+ _state.update { it.copy(isLoading = true, error = null) }
227+
228+ val (startTime, endTime) = getTimeRange()
229+ when (val result = repository.queryLogsRaw(safeSql, startTime, endTime)) {
230+ is ApiResult.Success -> {
231+ _state.update {
232+ it.copy(
233+ logs = result.data,
234+ isLoading = false,
235+ hasMore = result.data.size >= it.currentLimit,
236+ )
237+ }
238+ }
239+ is ApiResult.Error -> {
240+ _state.update {
241+ it.copy(isLoading = false, error = result.userMessage)
242+ }
243+ }
244+ }
245+ }
348246 }
349247
350− private fun buildSearchClause(searchableColumns: List<String>, searchQuery: String): String? {
248+ private fun buildSearchClause(columns: List<String>, searchQuery: String): String? {
351249 if (searchQuery.isBlank()) return null
352− if (searchableColumns.isEmpty()) return null
353− val safeSearch = escapeLikePattern(searchQuery)
354− return searchableColumns.joinToString(" OR ") {
355− "CAST(\"${escapeIdentifier(it)}\" AS VARCHAR) ILIKE '%$safeSearch%' ESCAPE '\\'"
250+ val safeSearch = escapeSql(searchQuery)
251+ // Search across ALL non-internal columns (not just 5)
252+ val searchFields = columns.filter { !it.startsWith("p_") }
253+ if (searchFields.isEmpty()) return null
254+ return searchFields.joinToString(" OR ") {
255+ "\"${escapeIdentifier(it)}\" ILIKE '%$safeSearch%'"
356256 }
357257 }
358258
359259 fun refresh() {
360260 if (_state.value.streamName.isEmpty()) return
361261
362− // Cancel any in-flight query so out-of-order completions can't overwrite
363− // fresh results with stale ones (filter/search/time-range/loadMore all call refresh()).
364− refreshJob?.cancel()
365− refreshJob = viewModelScope.launch {
366− // Anchor the upper time bound on the first page of a paging session (currentLimit at
367− // its initial value) and reuse it for subsequent loadMore() pages. Otherwise a relative
368− // range would recompute "now" on every page in getTimeRange(), sliding the window and
369− // duplicating/dropping rows on an actively-ingesting stream.
370− val anchor = _state.value.let { s ->
371− if (s.currentLimit <= 500) System.currentTimeMillis() else s.pageAnchorTime
372− }
262+ viewModelScope.launch {
373263 _state.update {
374264 it.copy(
375265 isLoading = true,
376266 error = null,
377267 streaming = it.streaming.copy(streamingError = null),
378− pageAnchorTime = anchor,
379268 )
380269 }
381270
@@ -383,24 +272,10 @@ class LogViewerViewModel @Inject constructor(
383272 val current = _state.value
384273 val (startTime, endTime) = getTimeRange()
385274
386− // A custom SQL query owns the whole statement (its own LIMIT, columns, ordering),
387− // so re-run it verbatim. It is not paginated via loadMore(), hence hasMore = false.
388− if (current.filters.customSql.isNotBlank()) {
389− when (val result = repository.queryLogsRaw(current.filters.customSql, startTime, endTime)) {
390− is ApiResult.Success -> {
391− _state.update { it.copy(logs = result.data, logKeys = computeLogKeys(result.data), isLoading = false, hasMore = false) }
392− }
393− is ApiResult.Error -> {
394− _state.update { it.copy(isLoading = false, error = result.userMessage) }
395− }
396− }
397− return@launch
398− }
399−
400275 // Build WHERE clause from filters + search
401276 val clauses = current.filters.filterClauses.toMutableList()
402277 if (current.filters.searchQuery.isNotBlank()) {
403− val searchClause = buildSearchClause(current.searchableColumns, current.filters.searchQuery)
278+ val searchClause = buildSearchClause(current.columns, current.filters.searchQuery)
404279 if (searchClause != null) {
405280 clauses.add("($searchClause)")
406281 } else {
@@ -413,26 +288,20 @@ class LogViewerViewModel @Inject constructor(
413288
414289 val filterSql = clauses.joinToString(" AND ")
415290
416− // Over-fetch by one row so we can distinguish "exactly currentLimit rows exist"
417− // (no more pages) from "the page is full and more may exist" without firing a
418− // wasted extra query the next time the user scrolls to the bottom.
419− val requestLimit = current.currentLimit + 1
420291 when (val result = repository.queryLogs(
421292 stream = current.streamName,
422293 startTime = startTime,
423294 endTime = endTime,
424295 filterSql = filterSql,
425− limit = requestLimit,
296+ limit = current.currentLimit,
426297 )) {
427298 is ApiResult.Success -> {
428− val hasMore = result.data.size > current.currentLimit && current.currentLimit < MAX_LOAD_LIMIT
429− val logs = if (result.data.size > current.currentLimit) {
430− result.data.take(current.currentLimit)
431− } else {
432− result.data
433− }
434299 _state.update {
435− it.copy(logs = logs, logKeys = computeLogKeys(logs), isLoading = false, hasMore = hasMore)
300+ it.copy(
301+ logs = result.data,
302+ isLoading = false,
303+ hasMore = result.data.size >= it.currentLimit,
304+ )
436305 }
437306 }
438307 is ApiResult.Error -> {
@@ -444,29 +313,8 @@ class LogViewerViewModel @Inject constructor(
444313 }
445314 }
446315
447− /**
448− * Pull-to-refresh: restart the paging session from the first page. Resetting currentLimit
449− * makes refresh() re-anchor pageAnchorTime to "now", so a relative time range advances and
450− * newly-ingested rows appear. Calling refresh() alone keeps the frozen anchor once the user
451− * has paged past the first page, making pull-to-refresh look like it does nothing.
452− */
453− fun pullRefresh() {
454− if (_state.value.streamName.isEmpty()) return
455− // While live-tailing, the poller continuously prepends fresh rows; a concurrent refresh()
456− // would replace the list with a full page at the same time, racing the poller on logs/
457− // logKeys/streamingError and producing duplicated or dropped rows plus a stale "+N" badge.
458− // The displayed logs are already current under streaming, so the pull is a no-op here —
459− // mirror loadMore()'s guard rather than the stopStreaming() path the other mutators take.
460− if (_state.value.streaming.isStreaming) return
461− _state.update { it.copy(currentLimit = 500) }
462− refresh()
463− }
464−
465316 fun loadMore() {
466317 val current = _state.value
467− // While live-tailing, logs are prepended in memory; a refresh() here would replace
468− // them with a fresh page and drop the streamed rows. Pagination resumes once stopped.
469− if (current.streaming.isStreaming) return
470318 if (current.currentLimit >= MAX_LOAD_LIMIT) {
471319 _state.update { it.copy(hasMore = false) }
472320 return
@@ -489,9 +337,7 @@ class LogViewerViewModel @Inject constructor(
489337 )
490338 return Pair(start.format(dateFormatter), end.format(dateFormatter))
491339 }
492− val now = current.pageAnchorTime
493− ?.let { ZonedDateTime.ofInstant(java.time.Instant.ofEpochMilli(it), ZoneOffset.UTC) }
494− ?: ZonedDateTime.now(ZoneOffset.UTC)
340+ val now = ZonedDateTime.now(ZoneOffset.UTC)
495341 val start = now.minusMinutes(current.selectedTimeRange.minutes)
496342 return Pair(
497343 start.format(dateFormatter),
@@ -499,17 +345,6 @@ class LogViewerViewModel @Inject constructor(
499345 )
500346 }
501347
502− /**
503− * Report whether the log list is scrolled to the top. Clears the "+N new" streaming badge
504− * when the user returns to the top, since prepended rows there are seen immediately.
505− */
506− fun setViewingTop(atTop: Boolean) {
507− viewingTop = atTop
508− if (atTop && _state.value.streaming.streamingNewCount != 0) {
509− _state.update { it.copy(streaming = it.streaming.copy(streamingNewCount = 0)) }
510− }
511− }
512−
513348 fun toggleStreaming() {
514349 if (_state.value.streaming.isStreaming) {
515350 stopStreaming()
@@ -519,10 +354,6 @@ class LogViewerViewModel @Inject constructor(
519354 }
520355
521356 private fun startStreaming() {
522− // The poller builds its own default SELECT * query and cannot honor a custom SQL
523− // projection/filter, so streaming custom-query results would prepend mismatched rows.
524− // The UI disables the toggle in this state; guard here too in case it's reached anyway.
525− if (_state.value.filters.customSql.isNotBlank()) return
526357 stopStreaming()
527358 consecutiveStreamingErrors = 0
528359 val generation = ++streamingGeneration
@@ -530,12 +361,6 @@ class LogViewerViewModel @Inject constructor(
530361 it.copy(streaming = StreamingState(isStreaming = true, streamingNewCount = 0))
531362 }
532363
533− // Seed the dedup set with the rows already on screen so an initial row sitting exactly
534− // on the streaming baseline timestamp can't be re-fetched and duplicated.
535− seenStreamingKeys.clear()
536− _state.value.logs.forEach { seenStreamingKeys.add(logIdentity(it)) }
537− trimSeenStreamingKeys()
538−
539364 // Set the baseline timestamp to "now" so we only poll for new logs
540365 lastSeenTimestamp = ZonedDateTime.now(ZoneOffset.UTC).format(dateFormatter)
541366
@@ -558,13 +383,6 @@ class LogViewerViewModel @Inject constructor(
558383 }
559384
560385 fun stopStreaming() {
561− // Cancel any pending search debounce too. Every query-basis change (time range, filters,
562− // saved filter, clear, new search) routes through stopStreaming(); without this, a
563− // searchJob scheduled moments before such a change would still fire refresh() ~300ms
564− // later and redundantly re-query over the just-applied state. onSearchQueryChange()
565− // re-assigns searchJob immediately after calling stopStreaming(), so its own debounce
566− // survives.
567− searchJob?.cancel()
568386 streamingGeneration++
569387 streamingJob?.cancel()
570388 streamingJob = null
@@ -579,49 +397,6 @@ class LogViewerViewModel @Inject constructor(
579397 }
580398 }
581399
582− /**
583− * Content-based identity for a log row, used to dedupe re-fetched boundary logs.
584− * Uses the full row: two rows are duplicates only when every field matches, so
585− * distinct logs that happen to share a timestamp/metadata/tags are not dropped.
586− */
587− private fun logIdentity(log: JsonObject): String = log.toString()
588−
589− /**
590− * Parse a server-rendered p_timestamp (which may be ISO with 'Z', offset-carrying,
591− * space-separated, or offset-less UTC) and reformat it to the canonical query format
592− * (`dateFormatter`) so it's a valid inclusive startTime for the next poll. Returns null
593− * if the value can't be parsed, so the caller can keep the previous boundary.
594− */
595− private fun normalizeBoundaryTimestamp(raw: String): String? {
596− val isoLike = if (' ' in raw && 'T' !in raw) raw.replaceFirst(' ', 'T') else raw
597− val instant = try {
598− Instant.parse(isoLike)
599− } catch (_: Exception) {
600− try {
601− OffsetDateTime.parse(isoLike).toInstant()
602− } catch (_: Exception) {
603− try {
604− LocalDateTime.parse(isoLike).toInstant(ZoneOffset.UTC)
605− } catch (_: Exception) {
606− return null
607− }
608− }
609− }
610− return instant.atOffset(ZoneOffset.UTC).format(dateFormatter)
611− }
612−
613− /** Bound the dedup set, evicting the oldest identities first (insertion order). */
614− private fun trimSeenStreamingKeys() {
615− if (seenStreamingKeys.size <= SEEN_STREAMING_KEYS_MAX) return
616− val iterator = seenStreamingKeys.iterator()
617− var toRemove = seenStreamingKeys.size - SEEN_STREAMING_KEYS_MAX
618− while (toRemove > 0 && iterator.hasNext()) {
619− iterator.next()
620− iterator.remove()
621− toRemove--
622− }
623− }
624−
625400 private suspend fun pollNewLogs() {
626401 val current = _state.value
627402 if (current.streamName.isEmpty()) return
@@ -632,118 +407,46 @@ class LogViewerViewModel @Inject constructor(
632407 // Build WHERE clause from active filters + search
633408 val clauses = current.filters.filterClauses.toMutableList()
634409 if (current.filters.searchQuery.isNotBlank()) {
635− val searchClause = buildSearchClause(current.searchableColumns, current.filters.searchQuery)
410+ val searchClause = buildSearchClause(current.columns, current.filters.searchQuery)
636411 if (searchClause != null) {
637− // Parenthesize: the search clause is OR-joined and must not break the
638− // precedence of the AND-joined filter clauses around it.
639− clauses.add("($searchClause)")
640− } else {
641− // Schema not loaded yet, so we can't build the search filter. Skip this
642− // poll rather than querying without it — otherwise we'd prepend rows that
643− // don't match the active search into a filtered view. Mirrors refresh(),
644− // which errors out instead of running an unfiltered query.
645− _state.update {
646− it.copy(
647− streaming = it.streaming.copy(
648− streamingError = "Search unavailable: stream schema not loaded",
649− ),
650− )
651− }
652− return
412+ clauses.add(searchClause)
653413 }
654414 }
655415
656416 val whereClause = if (clauses.isNotEmpty()) " WHERE ${clauses.joinToString(" AND ")}" else ""
657417 val safeName = escapeIdentifier(current.streamName)
658− // Fetch up to the in-memory display cap. With a small limit (e.g. 200), a burst of
659− // more than that many logs in one interval would advance lastSeenTimestamp past the
660− // un-fetched rows and drop them permanently. Capping at STREAMING_MAX_LOGS means we
661− // never skip rows we'd actually keep (anything older is evicted by the cap anyway).
662− val sql = "SELECT * FROM \"$safeName\"$whereClause ORDER BY p_timestamp DESC LIMIT $STREAMING_MAX_LOGS"
418+ val sql = "SELECT * FROM \"$safeName\"$whereClause ORDER BY p_timestamp DESC LIMIT 200"
663419
664420 when (val result = repository.queryLogsRaw(sql, startTime, endTime)) {
665421 is ApiResult.Success -> {
666422 val newLogs = result.data
667423 if (newLogs.isNotEmpty()) {
668− // Advance the last-seen boundary. Rows are ordered newest-first, so
669− // normally we jump to the newest. But a full page means the LIMIT may
670− // have capped off matching rows OLDER than the newest in this batch
671− // (possible once filters/search narrow a high-volume stream) — advancing
672− // to the newest would skip them forever. In that case advance only to the
673− // oldest row we did fetch, so the next poll re-queries forward and closes
674− // the gap (re-fetched rows are deduped below).
675− val fullPage = newLogs.size >= STREAMING_MAX_LOGS
676− val boundaryLog = if (fullPage) newLogs.lastOrNull() else newLogs.firstOrNull()
677− val boundaryTimestamp = try {
678− boundaryLog?.get("p_timestamp")?.jsonPrimitive?.content
424+ // Update the last seen timestamp to the most recent log
425+ val newestTimestamp = try {
426+ newLogs.firstOrNull()
427+ ?.get("p_timestamp")?.jsonPrimitive?.content
679428 } catch (_: Exception) {
680429 null
681430 }
682− // Re-canonicalize the server's p_timestamp before reusing it as the next
683− // query's startTime. The raw value can be space-separated or offset-less,
684− // which the query API may reject or misparse — that would stall live-tail
685− // after the first batch. If it can't be parsed, leave lastSeenTimestamp as-is
686− // (the inclusive startTime simply re-fetches the window; rows are deduped).
687− var normalized = boundaryTimestamp?.let { normalizeBoundaryTimestamp(it) }
688− // On a saturated (full) page the boundary is the OLDEST fetched row so the
689− // next poll re-queries forward and closes the LIMIT gap. But if that oldest
690− // row carries the SAME timestamp we're already at — e.g. a burst of more than
691− // STREAMING_MAX_LOGS rows sharing one millisecond, or the parse failing — the
692− // boundary wouldn't move and we'd re-query the identical window forever. Fall
693− // back to the NEWEST row's timestamp to guarantee forward progress; the
694− // skipped backlog would be evicted by the display cap anyway.
695− if (fullPage && (normalized == null || normalized == lastSeenTimestamp)) {
696− val newestTimestamp = try {
697− newLogs.firstOrNull()?.get("p_timestamp")?.jsonPrimitive?.content
698− } catch (_: Exception) {
699− null
700− }
701− val newestNormalized = newestTimestamp?.let { normalizeBoundaryTimestamp(it) }
702− if (newestNormalized != null && newestNormalized != lastSeenTimestamp) {
703− normalized = newestNormalized
704− }
705− }
706− if (normalized != null) {
707− lastSeenTimestamp = normalized
431+ if (newestTimestamp != null) {
432+ lastSeenTimestamp = newestTimestamp
708433 }
709434
710− // The query's startTime is inclusive, so rows sitting on the previous
711− // boundary timestamp get re-fetched. Dedup against everything seen this
712− // session (independent of the display cap) to avoid duplicate rows and an
713− // inflated count. Computed BEFORE the state update — and the seen-set
714− // mutated here, not inside the update lambda, which may re-run.
715− val freshLogs = newLogs.filterNot { logIdentity(it) in seenStreamingKeys }
716− newLogs.forEach { seenStreamingKeys.add(logIdentity(it)) }
717− trimSeenStreamingKeys()
718−
719− if (freshLogs.isEmpty()) {
720− _state.update { it.copy(streaming = it.streaming.copy(streamingError = null)) }
721− } else {
722− _state.update { state ->
723− // Prepend new logs, cap total — avoid full intermediate list allocation
724− val remaining = (STREAMING_MAX_LOGS - freshLogs.size).coerceAtLeast(0)
725− val capped = ArrayList<JsonObject>(freshLogs.size + remaining).apply {
726− addAll(freshLogs)
727− val oldLogs = state.logs
728− addAll(oldLogs.subList(0, remaining.coerceAtMost(oldLogs.size)))
729− }
730− state.copy(
731− logs = capped,
732− logKeys = computeLogKeys(capped),
733− streaming = state.streaming.copy(
734− // Accumulate new rows while the user is scrolled away; reset
735− // to 0 when they're at the top (where prepended rows are seen
736− // live). The previous cap was against total list size, so the
737− // badge saturated at the display cap and never cleared.
738− streamingNewCount = if (viewingTop) {
739− 0
740− } else {
741− state.streaming.streamingNewCount + freshLogs.size
742− },
743− streamingError = null,
744− ),
745− )
435+ _state.update { state ->
436+ // Prepend new logs, cap total
437+ val combined = newLogs + state.logs
438+ val capped = if (combined.size > STREAMING_MAX_LOGS) {
439+ combined.take(STREAMING_MAX_LOGS)
440+ } else {
441+ combined
746442 }
443+ state.copy(
444+ logs = capped,
445+ streaming = state.streaming.copy(
446+ streamingNewCount = state.streaming.streamingNewCount + newLogs.size,
447+ streamingError = null,
448+ ),
449+ )
747450 }
748451 }
749452 consecutiveStreamingErrors = 0
@@ -768,191 +471,6 @@ class LogViewerViewModel @Inject constructor(
768471 }
769472 }
770473
771− // --- Saved Filters (synced with Parseable server) ---
772−
773− // Serializes loadSavedFilters / saveCurrentFilter / deleteSavedFilter so they never
774− // interleave. Without this, a wholesale-overwrite load completing after a concurrent
775− // save (append) or delete (remove) would silently drop the local add/remove — a
776− // read-modify-write race across coroutines.
777− private val savedFiltersMutex = Mutex()
778−
779− fun loadSavedFilters() {
780− // Capture the stream this load is for; if the user navigates to a different stream
781− // before it completes, bind the result to the right stream instead of clobbering the
782− // new stream's filter list with another stream's results.
783− val stream = _state.value.streamName
784− viewModelScope.launch {
785− savedFiltersMutex.withLock {
786− _state.update { it.copy(savedFilters = it.savedFilters.copy(isLoading = true, error = null)) }
787− when (val result = repository.listFilters()) {
788− is ApiResult.Success -> {
789− if (_state.value.streamName != stream) {
790− _state.update { it.copy(savedFilters = it.savedFilters.copy(isLoading = false)) }
791− return@withLock
792− }
793− val streamFilters = result.data
794− .filter { it.streamName == stream }
795− .sortedBy { it.filterName.lowercase() }
796− _state.update {
797− it.copy(savedFilters = it.savedFilters.copy(filters = streamFilters, isLoading = false))
798− }
799− }
800− is ApiResult.Error -> {
801− _state.update {
802− it.copy(savedFilters = it.savedFilters.copy(isLoading = false, error = result.userMessage))
803− }
804− }
805− }
806− }
807− }
808− }
809−
810− fun saveCurrentFilter(name: String) {
811− val current = _state.value
812− if (current.streamName.isEmpty()) return
813−
814− viewModelScope.launch {
815− savedFiltersMutex.withLock {
816− _state.update { it.copy(savedFilters = it.savedFilters.copy(isSaving = true, error = null)) }
817−
818− val query = if (current.filters.customSql.isNotBlank()) {
819− SavedFilterQuery(
820− filterType = "sql",
821− filterQuery = current.filters.customSql,
822− )
823− } else {
824− val ruleGroups = current.filters.filterConditions
825− .mapIndexed { index, condition ->
826− FilterRule(
827− id = "rule_$index",
828− field = condition.column,
829− value = condition.value,
830− operator = condition.operator,
831− )
832− }
833− val builder = if (ruleGroups.isNotEmpty()) {
834− FilterBuilder(
835− id = "root",
836− combinator = "and",
837− rules = listOf(
838− FilterRuleGroup(
839− id = "group_0",
840− combinator = "and",
841− rules = ruleGroups,
842− ),
843− ),
844− )
845− } else null
846−
847− SavedFilterQuery(
848− filterType = if (current.filters.searchQuery.isNotBlank()) "search" else "filter",
849− filterQuery = current.filters.searchQuery.ifBlank { null },
850− filterBuilder = builder,
851− )
852− }
853−
854− val filter = SavedFilter(
855− filterName = name,
856− streamName = current.streamName,
857− query = query,
858− )
859−
860− when (val result = repository.createFilter(filter)) {
861− is ApiResult.Success -> {
862− _state.update {
863− it.copy(
864− savedFilters = it.savedFilters.copy(
865− isSaving = false,
866− filters = it.savedFilters.filters + result.data,
867− ),
868− )
869− }
870− }
871− is ApiResult.Error -> {
872− _state.update {
873− it.copy(savedFilters = it.savedFilters.copy(isSaving = false, error = result.userMessage))
874− }
875− }
876− }
877− }
878− }
879− }
880−
881− fun applySavedFilter(filter: SavedFilter) {
882− stopStreaming()
883−
884− when (filter.query.filterType) {
885− "sql" -> {
886− val sql = filter.query.filterQuery ?: return
887− // Reset to a clean filter state first, then let executeCustomSql validate
888− // the SQL and own the customSql state. Pre-seeding filters.customSql with
889− // the raw, unvalidated query meant that if executeCustomSql rejected it
890− // (e.g. a legacy non-SELECT saved filter, which returns early without
891− // touching state) we were left wedged in custom-SQL mode with broken SQL
892− // that every later refresh() would keep re-running.
893− _state.update {
894− it.copy(
895− filters = FilterState(),
896− currentLimit = 500,
897− )
898− }
899− executeCustomSql(sql)
900− }
901− "search" -> {
902− val searchQuery = filter.query.filterQuery ?: ""
903− _state.update {
904− it.copy(
905− filters = FilterState(searchQuery = searchQuery),
906− currentLimit = 500,
907− )
908− }
909− // Also apply builder rules if present
910− applyBuilderRules(filter.query.filterBuilder)
911− refresh()
912− }
913− else -> {
914− _state.update {
915− it.copy(
916− filters = FilterState(),
917− currentLimit = 500,
918− )
919− }
920− applyBuilderRules(filter.query.filterBuilder)
921− refresh()
922− }
923− }
924− }
925−
926− private fun applyBuilderRules(builder: FilterBuilder?) {
927− if (builder == null) return
928− for (group in builder.rules) {
929− for (rule in group.rules) {
930− if (rule.field.isNotBlank()) {
931− addFilterInternal(rule.field, rule.operator, rule.value)
932− }
933− }
934− }
935− }
936−
937− fun deleteSavedFilter(filterId: String) {
938− viewModelScope.launch {
939− savedFiltersMutex.withLock {
940− when (repository.deleteFilter(filterId)) {
941− is ApiResult.Success -> {
942− _state.update {
943− it.copy(
944− savedFilters = it.savedFilters.copy(
945− filters = it.savedFilters.filters.filter { f -> f.filterId != filterId },
946− ),
947− )
948− }
949− }
950− is ApiResult.Error -> { /* Silently ignore — will show on next reload */ }
951− }
952− }
953− }
954− }
955−
956474 override fun onCleared() {
957475 super.onCleared()
958476 schemaJob?.cancel()