Files
social-app/apps/lib/features/chat/data/ai/ai_decision_engine.dart
T
zl-q 3ac09475ad feat(agent): add voice input capability and standardize tool naming
- Add voice recording with transcribe endpoint (ASR) for multimodal input
- Android: add RECORD_AUDIO and INTERNET permissions
- Refactor tool naming: frontend tools use 'front.' prefix, backend tools use 'back.'
- Migrate calendar tools: create_calendar_event -> back.mutate/list/delete events
- Add calendar_event_list.v1 and calendar_operation.v1 UI card types
- Update all Flutter and Python tests to match new tool naming conventions
- Add record package dependency for voice recording
2026-03-09 00:10:09 +08:00

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import 'dart:convert';
enum Intent { createEvent, searchEvent, unknown }
/// 意图匹配规则(顺序敏感:searchEvent 优先级高于 createEvent
final _orderedPatterns = <(RegExp, Intent)>[
(RegExp(r'^查看|^有什么|^今天.*日程|^明天.*安排|^查询'), Intent.searchEvent),
(RegExp(r'提醒|开会|预约|安排.*时间|创建.*日程'), Intent.createEvent),
(RegExp(r'明天.*\d|今天.*\d|后天.*\d|\d{1,2}点|\d{1,2}:\d{2}'), Intent.createEvent),
];
/// 时区常量
const _defaultTimezone = 'Asia/Shanghai';
const _dayToday = '今天';
const _dayTomorrow = '明天';
const _dayAfterTomorrow = '后天';
const _tomorrowOffset = 1;
const _dayAfterTomorrowOffset = 2;
const _defaultMinute = 0;
class AiDecisionEngine {
Intent matchIntent(String text) {
for (final (pattern, intent) in _orderedPatterns) {
if (pattern.hasMatch(text)) return intent;
}
return Intent.unknown;
}
Map<String, dynamic>? tryExtractEventArgs(String text) {
if (matchIntent(text) != Intent.createEvent) return null;
final args = <String, dynamic>{};
final titleMatch = RegExp(r'提醒(.+?)(?:明天|今天|几点|$)').firstMatch(text);
if (titleMatch != null) {
args['title'] = titleMatch.group(1)?.trim() ?? text;
} else if (RegExp(r'\d{1,2}[:点]|\d{1,2}点').hasMatch(text)) {
args['title'] = text
.replaceAll(RegExp(r'\d{1,2}[:点]\d{0,2}|明天|今天|后天'), '')
.trim();
}
final title = args['title'];
if (title == null || (title as String).isEmpty) return null;
final timeMatch = RegExp(
r'(明天|今天|后天)?\s*(\d{1,2})[:点](\d{2})?',
).firstMatch(text);
if (timeMatch != null) {
final dayStr = timeMatch.group(1) ?? _dayToday;
final hour = int.parse(timeMatch.group(2)!);
final minute = int.parse(timeMatch.group(3) ?? '$_defaultMinute');
final now = DateTime.now();
final dayOffset = switch (dayStr) {
_dayTomorrow => _tomorrowOffset,
_dayAfterTomorrow => _dayAfterTomorrowOffset,
_ => 0,
};
final startAt = DateTime(
now.year,
now.month,
now.day + dayOffset,
hour,
minute,
);
args['startAt'] = startAt.toIso8601String();
args['timezone'] = _defaultTimezone;
}
if (!args.containsKey('startAt')) return null;
return args;
}
bool shouldTriggerToolCall(String text) =>
matchIntent(text) == Intent.createEvent;
Map<String, dynamic>? getToolCallArgs(String text) {
if (!shouldTriggerToolCall(text)) return null;
return tryExtractEventArgs(text);
}
ForceTriggerResult? tryForceTrigger(String text) {
final match = RegExp(
r'#tool:([A-Za-z0-9_.-]+)\s*(\{.*\})?',
).firstMatch(text);
if (match == null) return null;
final toolName = match.group(1)!;
final argsJson = match.group(2);
Map<String, dynamic>? args;
if (argsJson != null) {
try {
args = jsonDecode(argsJson) as Map<String, dynamic>;
} catch (_) {
args = {};
}
}
return ForceTriggerResult(toolName: toolName, args: args ?? {});
}
}
class ForceTriggerResult {
final String toolName;
final Map<String, dynamic> args;
ForceTriggerResult({required this.toolName, required this.args});
}