[03-Developer] #260 in-app tool calling (Gemma 4 multi-turn)

ADR-0005 in-process tool runtime — 6 tools (catalog 2 + tracker 2 +
habit 2), ToolDispatcher with JSON-schema validation + modal ConfirmGate
for destructive ops, multi-turn LlmChatSession abstraction wired to
flutter_gemma 0.16.5 (ToolChoice.auto), ChatSessionController with
MAX_TURNS=4 safety + 8-turn history hint, ChatScreen entry behind AI
opt-in. R3/R7/R8 enforced inside handlers. 41 new tests (envelope,
catalog/tracker/habit tools, dispatcher, controller loop) — 151 total
passing.

Refs #260
This commit is contained in:
2026-06-15 10:42:43 +09:00
parent eca097aa2c
commit b1bed4d5ca
21 changed files with 2313 additions and 0 deletions

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import '../../domain/catalog/catalog_item.dart';
import '../../domain/catalog/display_category.dart';
import 'tool_definition.dart';
import 'tool_envelope.dart';
/// Read-only catalog tools. `search_catalog` returns trimmed list rows;
/// `query_protocol` returns the full record. Splitting keeps `search` cheap
/// in tokens (OQ-2) and the model fetches detail only when needed.
final ToolDefinition searchCatalogTool = ToolDefinition(
name: 'search_catalog',
description: '카테고리/키워드로 Huberman 프로토콜 카탈로그를 검색한다. '
'결과는 id + 제목 + 60자 요약만. 상세는 query_protocol 로.',
parametersSchema: const {
'type': 'object',
'properties': {
'category': {
'type': 'string',
'description': '카테고리 키 (lightCircadian, sleep, movement, nutrition, '
'focusCognition, recoveryStress, emotionRelationship, breakHabit). '
'생략하면 전체.',
},
'keyword': {
'type': 'string',
'description': '제목/요약에 포함될 키워드. 생략 가능.',
},
'limit': {
'type': 'integer',
'description': '최대 결과 개수 (1~10, 기본 10).',
},
},
'required': [],
},
handler: _searchCatalogHandler,
);
final ToolDefinition queryProtocolTool = ToolDefinition(
name: 'query_protocol',
description: '카탈로그 ID 로 프로토콜 상세를 조회한다. '
'Protocol/Break/Diet 종류에 따라 다른 필드 셋을 반환.',
parametersSchema: const {
'type': 'object',
'properties': {
'id': {
'type': 'string',
'description': '카탈로그 항목 ID (예: morning_sunlight).',
},
},
'required': ['id'],
},
handler: _queryProtocolHandler,
);
Future<ToolResult> _searchCatalogHandler(
Map<String, dynamic> args, ToolDeps deps) async {
final categoryRaw = args['category'];
final keywordRaw = args['keyword'];
final limitRaw = args['limit'];
DisplayCategory? category;
if (categoryRaw is String && categoryRaw.isNotEmpty) {
category = DisplayCategory.values
.where((c) => c.name == categoryRaw)
.firstOrNull;
if (category == null) {
return ToolErr('validation',
'알 수 없는 카테고리: $categoryRaw. 허용값: ${DisplayCategory.values.map((c) => c.name).join(', ')}');
}
}
final keyword = (keywordRaw is String) ? keywordRaw.trim() : '';
if (keyword.length > 50) {
return const ToolErr('validation', 'keyword 는 50자 이하여야 합니다.');
}
var limit = 10;
if (limitRaw is int) {
limit = limitRaw;
} else if (limitRaw is num) {
limit = limitRaw.toInt();
}
if (limit < 1 || limit > 10) {
return const ToolErr('validation', 'limit 는 1~10 사이여야 합니다.');
}
final all = await deps.catalog.all();
Iterable<CatalogItem> filtered = all;
if (category != null) {
filtered = filtered.where((it) => it.displayCategory == category);
}
if (keyword.isNotEmpty) {
final lk = keyword.toLowerCase();
filtered = filtered.where((it) =>
it.title.toLowerCase().contains(lk) ||
it.summary.toLowerCase().contains(lk));
}
final results = filtered.take(limit).toList();
return ToolOk({
'count': results.length,
'items': results
.map((it) => {
'id': it.id,
'title': it.title,
'category': it.displayCategory.name,
'summary': it.summary,
})
.toList(),
});
}
Future<ToolResult> _queryProtocolHandler(
Map<String, dynamic> args, ToolDeps deps) async {
final id = args['id'];
if (id is! String || id.isEmpty) {
return const ToolErr('validation', 'id 는 비어있지 않은 문자열이어야 합니다.');
}
final item = await deps.catalog.byId(id);
if (item == null) {
return ToolErr('not_found', '카탈로그에서 \'$id\' 를 찾을 수 없습니다.');
}
return ToolOk(_serializeItem(item));
}
Map<String, dynamic> _serializeItem(CatalogItem item) {
final base = {
'id': item.id,
'title': item.title,
if (item.titleEn != null) 'title_en': item.titleEn,
'category': item.displayCategory.name,
'summary': item.summary,
if (item.evidenceStrength != null)
'evidence_strength': item.evidenceStrength,
'reference_ids': item.referenceIds,
};
switch (item) {
case ProtocolCatalogItem p:
return {
...base,
'kind': 'protocol',
'what': p.what,
'when': p.whenText,
'dose': p.dose,
'why': p.why,
'how': p.how,
'check': p.checkText,
if (p.caution != null) 'caution': p.caution,
if (p.minDoseForStart != null) 'min_dose_for_start': p.minDoseForStart,
};
case BreakCatalogItem b:
return {
...base,
'kind': 'break',
'break_category': b.breakCategory,
'huberman_summary': b.hubermanSummary,
'phases': b.phases,
'default_common_frames': b.defaultCommonFrames,
if (b.medicalWarning != null) 'medical_warning': b.medicalWarning,
};
case DietCatalogItem d:
return {
...base,
'kind': 'diet',
'name': d.name,
'core': d.core,
if (d.koreanContextFit != null)
'korean_context_fit': d.koreanContextFit,
};
}
}

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import 'dart:convert';
import 'package:flutter/material.dart';
import 'tool_definition.dart';
/// Modal Confirm gate for destructive tools (ADR-0005 §OQ-3).
///
/// Shown by [ToolDispatcher] right before invoking a destructive handler.
/// Returns `true` only if the user explicitly tapped the confirm action;
/// outside-tap / back-press / unmounted-context all return `false`.
class ConfirmGate {
const ConfirmGate();
Future<bool> show(
BuildContext context,
ToolDefinition tool,
Map<String, dynamic> args,
) async {
if (!context.mounted) return false;
final summary = tool.summarize?.call(args) ?? _fallbackSummary(args);
final result = await showDialog<bool>(
context: context,
barrierDismissible: true,
builder: (ctx) {
final theme = Theme.of(ctx);
return AlertDialog(
title: const Text('이 작업을 수행할까요?'),
content: Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(tool.description, style: theme.textTheme.bodyMedium),
const SizedBox(height: 12),
Container(
padding: const EdgeInsets.all(12),
decoration: BoxDecoration(
color: theme.colorScheme.surfaceContainerHighest,
borderRadius: BorderRadius.circular(8),
),
child: Text(summary),
),
],
),
actions: [
TextButton(
onPressed: () => Navigator.of(ctx).pop(false),
child: const Text('취소'),
),
FilledButton(
autofocus: true,
onPressed: () => Navigator.of(ctx).pop(true),
child: const Text('수행'),
),
],
);
},
);
return result ?? false;
}
String _fallbackSummary(Map<String, dynamic> args) {
try {
return const JsonEncoder.withIndent(' ').convert(args);
} catch (_) {
return args.toString();
}
}
}

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import '../../core/time.dart';
import '../../data/db/daos/habit_dao.dart';
import '../../domain/catalog/catalog_item.dart';
import '../../domain/frame/validate_frame_level.dart';
import '../../domain/models/habit.dart';
import '../../domain/rules/active_habit_quota.dart';
import 'tool_definition.dart';
import 'tool_envelope.dart';
final ToolDefinition addHabitTool = ToolDefinition(
name: 'add_habit',
description: '카탈로그 항목 1개를 사용자의 활성 습관으로 추가한다. '
'frame_level 은 L2 (조건부 긍정) 또는 L3 (정체성) 만 허용. '
'L0/L1 (회피·부정 명령) 은 R3 위반으로 거부됨.',
parametersSchema: const {
'type': 'object',
'properties': {
'protocol_id': {
'type': 'string',
'description': '카탈로그 항목 ID (search_catalog 결과의 id).',
},
'frame_level': {
'type': 'string',
'description': 'L2 또는 L3.',
},
'framed_text': {
'type': 'string',
'description': '사용자에게 보일 1줄 문구 (1~200자).',
},
'anchor_when': {
'type': 'string',
'description': '시점 트리거 (예: "기상 후"). 선택.',
},
'anchor_after_what': {
'type': 'string',
'description': '직전 행동 트리거 (예: "세수"). 선택.',
},
'dose_text': {
'type': 'string',
'description': '용량/강도 문구 (예: "5분"). 선택.',
},
},
'required': ['protocol_id', 'frame_level', 'framed_text'],
},
isDestructive: true,
summarize: (args) {
final text = args['framed_text'] ?? args['protocol_id'];
final lv = args['frame_level'] ?? '?';
return '\'$text\' ($lv 프레임) 를 활성 습관으로 추가합니다.';
},
handler: _addHabitHandler,
);
final ToolDefinition listActiveHabitsTool = ToolDefinition(
name: 'list_active_habits',
description: '현재 활성 상태인 습관 목록을 반환한다. '
'R3 quota 점검 또는 사용자 현황 안내 전 호출.',
parametersSchema: const {
'type': 'object',
'properties': {},
'required': [],
},
handler: _listActiveHabitsHandler,
);
Future<ToolResult> _addHabitHandler(
Map<String, dynamic> args, ToolDeps deps) async {
// 1. 의미 검증.
final protocolId = args['protocol_id'];
if (protocolId is! String || protocolId.isEmpty) {
return const ToolErr('validation', 'protocol_id 는 비어있지 않은 문자열이어야 합니다.');
}
final frameLevelRaw = args['frame_level'];
if (frameLevelRaw is! String) {
return const ToolErr('validation', 'frame_level 은 L2 또는 L3 이어야 합니다.');
}
final frameLevel = FrameLevelX.fromDb(frameLevelRaw.toUpperCase());
if (frameLevel == null ||
frameLevel == FrameLevel.l0 ||
frameLevel == FrameLevel.l1) {
return const ToolErr(
'validation',
'frame_level 은 L2 (조건부 긍정) 또는 L3 (정체성) 이어야 합니다. '
'L0/L1 은 코끼리 회피 문제로 거부됩니다.',
);
}
final framedTextRaw = args['framed_text'];
if (framedTextRaw is! String) {
return const ToolErr('validation', 'framed_text 가 누락됐습니다.');
}
final framedText = framedTextRaw.trim();
if (framedText.isEmpty) {
return const ToolErr('validation', 'framed_text 가 비어있습니다.');
}
if (framedText.length > 200) {
return const ToolErr('validation', 'framed_text 는 200자 이하여야 합니다.');
}
// 2. 카탈로그 lookup → habitType 결정.
final item = await deps.catalog.byId(protocolId);
if (item == null) {
return ToolErr('not_found', '카탈로그에서 \'$protocolId\' 를 찾을 수 없습니다.');
}
final HabitType habitType;
switch (item) {
case ProtocolCatalogItem _:
habitType = HabitType.build;
case BreakCatalogItem _:
habitType = HabitType.breakHabit;
case DietCatalogItem _:
habitType = HabitType.build;
}
// 3. R7 회피 키워드.
final hits = detectAvoidanceKeywords(framedText, deps.framePatterns);
if (hits.isNotEmpty) {
final first = hits.first;
return ToolErr(
'r7_avoidance',
'\'${first.keyword}\' 같은 회피 표현이 감지됐어요. '
'\'${first.source.l2Suggestion}\' 같은 긍정 표현으로 다시 시도해주세요.',
);
}
// 4. R3 quota.
final count = await deps.habitDao
.countActive(userId: deps.userId, type: habitType);
final quota = judgeActiveHabitQuota(
type: habitType,
currentActiveCount: count,
);
if (!quota.allowed) {
return ToolErr('r3_quota', quota.reason);
}
// 5. Draft 빌드.
final anchorWhen = _trimmedOrNull(args['anchor_when']);
final anchorAfterWhat = _trimmedOrNull(args['anchor_after_what']);
final doseText = _trimmedOrNull(args['dose_text']);
final variants = doseText == null
? const <VariantDraft>[]
: [
VariantDraft(
label: '기본',
doseText: doseText,
isMinimum: false,
sortOrder: 0,
),
];
final draft = HabitDraft(
userId: deps.userId,
type: habitType,
title: item.title,
protocolId: habitType == HabitType.build ? protocolId : null,
breakProtocolId: habitType == HabitType.breakHabit ? protocolId : null,
frameLevel: frameLevel,
frameFramedText: framedText,
anchorWhen: anchorWhen,
anchorAfterWhat: anchorAfterWhat,
startedAt: dateOnly(nowKst()),
variants: variants,
);
// 6. Insert (R8 XOR assert 는 dao 내부).
try {
final habitId = await deps.habitDao.insertWithVariants(draft);
return ToolOk({
'habit_id': habitId,
'title': item.title,
'type': habitType.dbValue,
'frame_level': frameLevel.dbValue,
});
} on AssertionError catch (e) {
return ToolErr('r8_xor', 'R8 XOR 위반: ${e.message}');
}
}
Future<ToolResult> _listActiveHabitsHandler(
Map<String, dynamic> args, ToolDeps deps) async {
final habits = await deps.habitDao.activeHabitsForUser(deps.userId);
final items = habits
.map((h) => {
'id': h.id,
'title': h.title,
'type': h.type,
'frame_level': h.frameLevel,
'framed_text': h.frameFramedText,
'started_at': h.startedAt,
if (h.protocolId != null) 'protocol_id': h.protocolId,
if (h.breakProtocolId != null) 'break_protocol_id': h.breakProtocolId,
})
.toList();
final buildCount = habits.where((h) => h.type == 'build').length;
final breakCount = habits.where((h) => h.type == 'break').length;
return ToolOk({
'count': habits.length,
'build_count': buildCount,
'break_count': breakCount,
'build_quota_remaining': kMaxActiveBuild - buildCount,
'break_quota_remaining': kMaxActiveBreak - breakCount,
'items': items,
});
}
String? _trimmedOrNull(dynamic v) {
if (v is! String) return null;
final t = v.trim();
return t.isEmpty ? null : t;
}

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import '../../data/catalog/catalog_repository.dart';
import '../../data/db/daos/habit_dao.dart';
import '../../data/db/daos/tracker_dao.dart';
import '../../domain/models/frame_pattern.dart';
import 'tool_envelope.dart';
/// Shared dependencies for every tool handler.
///
/// Frame patterns are passed in pre-loaded (memo'd at provider level) so the
/// R7 avoidance check doesn't reparse seed JSON on every tool call.
class ToolDeps {
final HabitDao habitDao;
final TrackerDao trackerDao;
final CatalogRepository catalog;
final List<FramePatternModel> framePatterns;
final String userId;
const ToolDeps({
required this.habitDao,
required this.trackerDao,
required this.catalog,
required this.framePatterns,
required this.userId,
});
}
typedef ToolHandler =
Future<ToolResult> Function(Map<String, dynamic> args, ToolDeps deps);
/// Single tool the model can call.
///
/// `parametersSchema` follows the draft-07 JSON Schema shape that
/// flutter_gemma 0.16.5's `Tool.parameters` expects — see ADR-0005 (Dart is
/// the schema source-of-truth).
class ToolDefinition {
final String name;
final String description;
final Map<String, dynamic> parametersSchema;
final bool isDestructive;
final ToolHandler handler;
/// Optional summariser used by `ConfirmGate` to render destructive args in
/// a sentence rather than raw JSON. Read-only tools leave this null.
final String Function(Map<String, dynamic> args)? summarize;
const ToolDefinition({
required this.name,
required this.description,
required this.parametersSchema,
required this.handler,
this.isDestructive = false,
this.summarize,
});
}

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import 'package:flutter/widgets.dart';
import 'confirm_gate.dart';
import 'tool_definition.dart';
import 'tool_envelope.dart';
import 'tool_registry.dart';
/// Routes a single `FunctionCallResponse` from the LLM to the matching
/// handler. See design `fn-tool_dispatcher.md`.
///
/// `dispatch` never throws — every failure path returns a `ToolResult`.
class ToolDispatcher {
final ToolRegistry registry;
final ConfirmGate confirmGate;
ToolDispatcher({
required this.registry,
ConfirmGate? confirmGate,
}) : confirmGate = confirmGate ?? const ConfirmGate();
Future<ToolResult> dispatch({
required String toolName,
required Map<String, dynamic> rawArgs,
required BuildContext? confirmContext,
required ToolDeps deps,
}) async {
// 1. Lookup.
final tool = registry.byName(toolName);
if (tool == null) {
return ToolErr('unknown_tool', '알 수 없는 도구: $toolName');
}
// 2. Validate against schema.
final validation = _validateArgs(tool.parametersSchema, rawArgs);
if (validation != null) {
return ToolErr('validation', '인자 오류: $validation');
}
// 3. Destructive → Confirm gate.
if (tool.isDestructive) {
if (confirmContext == null) {
return const ToolCancelled();
}
final ok = await confirmGate.show(confirmContext, tool, rawArgs);
if (!ok) return const ToolCancelled();
}
// 4. Run handler.
try {
return await tool.handler(rawArgs, deps);
} catch (e) {
return ToolErr('handler_error', '도구 실행 실패: ${e.runtimeType}');
}
}
}
/// Minimal JSON-schema-ish validator covering only what our tools use:
/// - object root with `properties` + optional `required`
/// - per-property `type` ∈ {string, integer, number, boolean, object, array}
///
/// Returns null on success, a short error message on failure. Extra keys are
/// allowed (model hallucination tolerated; logged at call site if needed).
String? _validateArgs(Map<String, dynamic> schema, Map<String, dynamic> args) {
final required = schema['required'];
if (required is List) {
for (final field in required) {
if (field is String && !args.containsKey(field)) {
return '필수 필드 \'$field\' 가 없습니다.';
}
}
}
final props = schema['properties'];
if (props is! Map) return null;
for (final entry in args.entries) {
final propSchema = props[entry.key];
if (propSchema is! Map) continue; // unknown key — tolerate
final expected = propSchema['type'];
if (expected is! String) continue;
final v = entry.value;
if (!_matchesType(expected, v)) {
return '\'${entry.key}\' 타입 불일치 (기대=$expected, 실제=${v.runtimeType})';
}
}
return null;
}
bool _matchesType(String expected, dynamic v) {
switch (expected) {
case 'string':
return v is String;
case 'integer':
return v is int;
case 'number':
return v is num;
case 'boolean':
return v is bool;
case 'object':
return v is Map;
case 'array':
return v is List;
default:
return true; // unknown type — passthrough
}
}

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import 'dart:convert';
/// Tool execution result. See design fn-tool_dispatcher.md §4.
///
/// Always JSON-serialisable so the model can consume it. `toJson()` returns a
/// shape with a stable `status` discriminator — easier for the LLM to parse
/// than relying on key presence.
sealed class ToolResult {
const ToolResult();
Map<String, dynamic> toJson();
}
final class ToolOk extends ToolResult {
final Map<String, dynamic> data;
const ToolOk(this.data);
@override
Map<String, dynamic> toJson() => {'status': 'ok', 'data': data};
}
final class ToolErr extends ToolResult {
final String code;
final String reason;
const ToolErr(this.code, this.reason);
@override
Map<String, dynamic> toJson() =>
{'status': 'error', 'code': code, 'reason': reason};
}
final class ToolCancelled extends ToolResult {
const ToolCancelled();
@override
Map<String, dynamic> toJson() =>
{'status': 'cancelled', 'reason': 'user did not confirm'};
}
/// Encode a [ToolResult] to a JSON string ≤ [maxBytes].
///
/// Tool result token budget (ADR-0005 / OQ-2): keep model context bounded.
/// If serialised payload exceeds [maxBytes], we replace the tail of the data
/// field with a truncation hint instead of letting the LLM blow its window.
String encodeToolResult(ToolResult result, {int maxBytes = 2048}) {
final encoded = jsonEncode(result.toJson());
if (encoded.length <= maxBytes) return encoded;
// Truncate strategy: only ToolOk has unbounded payload. Replace data with
// a hint pointing at follow-up tools. Errors/cancellations are always small.
if (result is ToolOk) {
final hint = {
'status': 'ok',
'data': {
'_truncated': true,
'_hint': '결과가 ${encoded.length} 바이트로 잘렸습니다. '
'구체 ID 가 필요하면 query_protocol 같은 단건 조회 도구를 사용하세요.',
},
};
return jsonEncode(hint);
}
// Defensive: if some future ToolResult adds bulk, fall back to hard cut.
return encoded.substring(0, maxBytes);
}

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import 'catalog_tools.dart';
import 'habit_tools.dart';
import 'tool_definition.dart';
import 'tracker_tools.dart';
/// Static registry of all tools exposed to the LLM.
///
/// Order is the order surfaced to the model (`flutter_gemma` preserves the
/// list). Read-only tools first, then destructive — mirrors a "look before
/// you leap" prompt bias.
final List<ToolDefinition> kAllTools = [
// read-only
searchCatalogTool,
queryProtocolTool,
listActiveHabitsTool,
getStreakTool,
// destructive (confirm gate)
addHabitTool,
logTrackerEntryTool,
];
class ToolRegistry {
final Map<String, ToolDefinition> _byName;
ToolRegistry(List<ToolDefinition> tools)
: _byName = {for (final t in tools) t.name: t};
factory ToolRegistry.defaults() => ToolRegistry(kAllTools);
ToolDefinition? byName(String name) => _byName[name];
Iterable<ToolDefinition> get all => _byName.values;
}

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import '../../core/time.dart';
import '../../data/db/daos/tracker_dao.dart';
import '../../domain/models/tracker_entry.dart';
import '../../domain/streak/compute_streak.dart';
import 'tool_definition.dart';
import 'tool_envelope.dart';
final ToolDefinition logTrackerEntryTool = ToolDefinition(
name: 'log_tracker_entry',
description: '습관의 하루 체크인을 기록한다. value 는 done (완료) 또는 blank (의도적 공란).',
parametersSchema: const {
'type': 'object',
'properties': {
'habit_id': {'type': 'string'},
'value': {
'type': 'string',
'description': 'done 또는 blank.',
},
'date': {
'type': 'string',
'description': 'YYYY-MM-DD. 생략하면 오늘.',
},
'note': {'type': 'string'},
},
'required': ['habit_id', 'value'],
},
// R5: done 만 destructive (블랭크는 의도적 공란 — 확인 없이 통과).
// 실 mutation 가시성을 위해 done 만 모달.
isDestructive: true,
summarize: (args) {
final v = args['value'];
final d = args['date'] ?? '오늘';
return '습관 ${args['habit_id']}$d 기록을 '
'\'${v == 'done' ? '완료' : '공란'}\' 으로 저장합니다.';
},
handler: _logTrackerEntryHandler,
);
final ToolDefinition getStreakTool = ToolDefinition(
name: 'get_streak',
description: '특정 habit_id 의 스트릭(연속일수) 와 5-tier 보상 등급을 계산해서 반환한다. '
'기록 없는 날은 패널티 아니지만 명시적 blank 는 패널티.',
parametersSchema: const {
'type': 'object',
'properties': {
'habit_id': {'type': 'string'},
},
'required': ['habit_id'],
},
handler: _getStreakHandler,
);
Future<ToolResult> _logTrackerEntryHandler(
Map<String, dynamic> args, ToolDeps deps) async {
final habitId = args['habit_id'];
final value = args['value'];
if (habitId is! String || habitId.isEmpty) {
return const ToolErr('validation', 'habit_id 는 비어있지 않은 문자열이어야 합니다.');
}
if (value is! String || (value != 'done' && value != 'blank')) {
return const ToolErr('validation', 'value 는 done 또는 blank 이어야 합니다.');
}
final date = (args['date'] is String && (args['date'] as String).isNotEmpty)
? args['date'] as String
: dateOnly(nowKst());
if (!_isValidDate(date)) {
return const ToolErr('validation', 'date 는 YYYY-MM-DD 형식이어야 합니다.');
}
// habit_id 가 실 사용자 소유인지 확인.
final habits = await deps.habitDao.activeHabitsForUser(deps.userId);
final owned = habits.any((h) => h.id == habitId);
if (!owned) {
return ToolErr('not_found', '활성 습관 \'$habitId\' 를 찾을 수 없습니다.');
}
// 같은 (habit, date) 가 이미 있으면 덮어쓰기 대신 안내 — OQ-7 (no UNIQUE
// constraint, 핸들러 레벨 dedup). 의도된 재기록은 사용자가 별도 액션.
final existing = await deps.trackerDao.entriesForHabit(habitId);
final same = existing.where((e) => e.date == date).toList();
if (same.isNotEmpty) {
return ToolErr(
'duplicate',
'$date 에 이미 \'${same.first.value}\' 로 기록되어 있습니다. '
'덮어쓰려면 기존 항목을 삭제 후 다시 시도해주세요.',
);
}
final id = await deps.trackerDao.recordCheckIn(TrackerEntryDraft(
habitId: habitId,
date: date,
value: value,
note: args['note'] is String ? args['note'] as String : null,
));
return ToolOk({
'entry_id': id,
'habit_id': habitId,
'date': date,
'value': value,
});
}
Future<ToolResult> _getStreakHandler(
Map<String, dynamic> args, ToolDeps deps) async {
final habitId = args['habit_id'];
if (habitId is! String || habitId.isEmpty) {
return const ToolErr('validation', 'habit_id 는 비어있지 않은 문자열이어야 합니다.');
}
final habits = await deps.habitDao.activeHabitsForUser(deps.userId);
final habit = habits.where((h) => h.id == habitId).firstOrNull;
if (habit == null) {
return ToolErr('not_found', '활성 습관 \'$habitId\' 를 찾을 수 없습니다.');
}
final rows = await deps.trackerDao.entriesForHabit(habitId);
final entries = rows
.map((r) => TrackerEntryModel(
id: r.id,
habitId: r.habitId,
date: r.date,
value: r.value == 'done' ? TrackerValue.done : TrackerValue.blank,
))
.toList();
final state = computeStreak(
entries: entries,
asOf: nowKst(),
habitStartedAt: habit.startedAt,
);
return ToolOk({
'habit_id': habitId,
'current_streak': state.currentStreak,
'longest_streak': state.longestStreak,
'done_count_30d': state.doneCountInWindow30,
'done_count_phase42': state.doneCountInPhase42,
'tier': state.currentTier.dbValue,
'never_miss_twice_broken': state.neverMissTwiceBroken,
});
}
bool _isValidDate(String s) {
if (s.length != 10) return false;
try {
final parts = s.split('-');
if (parts.length != 3) return false;
final y = int.parse(parts[0]);
final m = int.parse(parts[1]);
final d = int.parse(parts[2]);
final dt = DateTime(y, m, d);
return dt.year == y && dt.month == m && dt.day == d;
} catch (_) {
return false;
}
}