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feat: task based send flow

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This commit is contained in:
cogwheel0
2025-09-01 23:41:22 +05:30
parent 53e16237df
commit 1b65743b06
6 changed files with 445 additions and 33 deletions
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21
lib/core/services/api_service.dart
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@@ -625,7 +625,7 @@ class ApiService {
// If this assistant message includes tool_calls, merge following tool results
final historyMsg = historyMessagesMap != null
? (historyMessagesMap![msgData['id']] as Map<String, dynamic>?)
? (historyMessagesMap[msgData['id']] as Map<String, dynamic>?)
: null;
final toolCalls = (msgData['tool_calls'] is List)
@@ -2652,9 +2652,7 @@ class ApiService {
// Add only essential parameters
if (conversationId != null) {
if (conversationId != null) {
data['chat_id'] = conversationId;
}
data['chat_id'] = conversationId;
}
// Add feature flags if enabled
@@ -2737,13 +2735,10 @@ class ApiService {
// Decide whether to use background task flow.
// Only enable background task mode when we actually need socket/dynamic-channel
// behavior (e.g., provider-native tools or explicit background tasks with a session).
final bool useBackgroundTasks = (
// Use background flow only for provider-native tools or explicit tool servers.
// Pure text generation should prefer SSE even if a socket session exists,
// and background_tasks can still be honored at the end of SSE.
(toolIds != null && toolIds.isNotEmpty) ||
(toolServers != null && toolServers.isNotEmpty)
);
// Always use task-based background flow for unified pipeline.
// When a dynamic channel (session_id) is not provided, this method falls
// back to polling and streams deltas to the UI.
final bool useBackgroundTasks = true;
// Use background flow only when required; otherwise prefer SSE even with chat_id.
// SSE must not include session_id/id to avoid server falling back to task mode.
@@ -3625,12 +3620,12 @@ class ApiService {
: '';
String toEmit;
if ((contentVal as String).startsWith(last)) {
if (contentVal.startsWith(last)) {
toEmit = contentVal.substring(last.length);
} else {
// Fallback: emit suffix after longest common prefix
int i = 0;
final s = contentVal as String;
final s = contentVal;
final minLen = last.length < s.length ? last.length : s.length;
while (i < minLen && last.codeUnitAt(i) == s.codeUnitAt(i)) {
i++;