feat: add idempotency support for settlement adjustments and payments, fix rebate handling

- Added idempotency_key parameter to settlement bill adjustment and payment endpoints to prevent duplicate operations
- Fixed player rebate profile updates to preserve existing values when only one field is modified
- Moved wallet player validation earlier in AdminPlayerStoreController to prevent unnecessary processing
- Enhanced extra rebate calculation to include 'in_bill' and 'settled' statuses in AgentP

app/Http/Controllers/Api/V1/Admin/AgentSettlement/AgentSettlementBillAdjustmentController.php

@@ -33,6 +33,7 @@ final class AgentSettlementBillAdjustmentController extends Controller
             (string) ($request->validated('adjustment_type') ?? 'adjustment'),
             $request->validated('reason'),
             (int) $admin->id,
+            $request->validated('idempotency_key'),
         );
 
         $after = DB::table('settlement_bills')->where('id', $newBillId)->first();

app/Http/Controllers/Api/V1/Admin/AgentSettlement/AgentSettlementBillPaymentController.php

@@ -35,6 +35,7 @@ final class AgentSettlementBillPaymentController extends Controller
                 'method' => $validated['method'] ?? null,
                 'proof' => $validated['proof'] ?? null,
                 'remark' => $validated['remark'] ?? null,
+                'idempotency_key' => $validated['idempotency_key'] ?? null,
             ],
         );
 

app/Http/Controllers/Api/V1/Admin/Player/AdminPlayerStoreController.php

@@ -106,6 +106,13 @@ final class AdminPlayerStoreController extends Controller
         }
 
         $agent = AgentNode::query()->findOrFail($agentNodeId);
+
+        if (! $isNative && ($request->has('credit_limit') || $request->has('rebate_rate') || $request->has('extra_rebate_rate'))) {
+            throw ValidationException::withMessages([
+                'credit_limit' => ['wallet_player_prohibited'],
+            ]);
+        }
+
         $rebateRate = 0.0;
         $extraRebateRate = 0.0;
         if ($request->has('rebate_rate') || $request->has('extra_rebate_rate')) {
@@ -118,12 +125,6 @@ final class AdminPlayerStoreController extends Controller
             );
         }
 
-        if (! $isNative && ($request->has('credit_limit') || $request->has('rebate_rate') || $request->has('extra_rebate_rate'))) {
-            throw ValidationException::withMessages([
-                'credit_limit' => ['wallet_player_prohibited'],
-            ]);
-        }
-
         $creditLimit = $request->has('credit_limit')
             ? (int) $request->input('credit_limit', 0)
             : ($isNative ? 0 : 0);
@@ -164,7 +165,7 @@ final class AdminPlayerStoreController extends Controller
 
             $agentProfileService->refreshAllocatedCredit($agent);
 
-            if ($request->has('rebate_rate')) {
+            if ($request->has('rebate_rate') || $request->has('extra_rebate_rate')) {
                 DB::table('player_rebate_profiles')->insert([
                     'player_id' => $player->id,
                     'game_type' => '*',

app/Http/Controllers/Api/V1/Admin/Player/AdminPlayerUpdateController.php

@@ -55,11 +55,21 @@ final class AdminPlayerUpdateController extends Controller
             ]);
         }
 
-        $rebateRate = 0.0;
-        $extraRebateRate = 0.0;
+        $rebateRate = null;
+        $extraRebateRate = null;
         if ($agent !== null && ($request->has('rebate_rate') || $request->has('extra_rebate_rate'))) {
-            $rebateRate = (float) $request->input('rebate_rate', 0) / 100;
-            $extraRebateRate = (float) $request->input('extra_rebate_rate', 0) / 100;
+            $existing = DB::table('player_rebate_profiles')
+                ->where('player_id', $player->id)
+                ->where('game_type', '*')
+                ->first();
+
+            $rebateRate = $request->has('rebate_rate')
+                ? (float) $request->input('rebate_rate', 0) / 100
+                : (float) ($existing->rebate_rate ?? 0);
+            $extraRebateRate = $request->has('extra_rebate_rate')
+                ? (float) $request->input('extra_rebate_rate', 0) / 100
+                : (float) ($existing->extra_rebate_rate ?? 0);
+
             $rebateLimitValidator->assertPlayerRebateWithinAgent(
                 $agent,
                 $rebateRate,
@@ -78,13 +88,13 @@ final class AdminPlayerUpdateController extends Controller
             unset($data['credit_limit']);
         }
 
-        if ($request->has('rebate_rate') || $request->has('extra_rebate_rate')) {
+        if ($rebateRate !== null || $extraRebateRate !== null) {
             DB::table('player_rebate_profiles')->updateOrInsert(
                 ['player_id' => $player->id, 'game_type' => '*'],
                 [
                     'inherit_from_agent' => false,
-                    'rebate_rate' => $rebateRate,
-                    'extra_rebate_rate' => $extraRebateRate,
+                    'rebate_rate' => $rebateRate ?? 0,
+                    'extra_rebate_rate' => $extraRebateRate ?? 0,
                     'updated_at' => now(),
                     'created_at' => now(),
                 ],

app/Http/Requests/Admin/AdminSettlementBillAdjustmentRequest.php

@@ -17,6 +17,7 @@ final class AdminSettlementBillAdjustmentRequest extends ApiFormRequest
             'amount' => ['required', 'integer', 'not_in:0'],
             'adjustment_type' => ['sometimes', 'string', 'in:adjustment,reversal'],
             'reason' => ['sometimes', 'nullable', 'string', 'max:255'],
+            'idempotency_key' => ['sometimes', 'nullable', 'string', 'max:64'],
         ];
     }
 }

app/Http/Requests/Admin/AdminSettlementBillPaymentRequest.php

@@ -18,6 +18,7 @@ final class AdminSettlementBillPaymentRequest extends ApiFormRequest
             'method' => ['sometimes', 'nullable', 'string', 'max:32'],
             'proof' => ['sometimes', 'nullable', 'string', 'max:2000'],
             'remark' => ['sometimes', 'nullable', 'string', 'max:255'],
+            'idempotency_key' => ['sometimes', 'nullable', 'string', 'max:64'],
         ];
     }
 }

app/Services/AgentSettlement/AgentPeriodAggregator.php

@@ -186,7 +186,7 @@ final class AgentPeriodAggregator
         return (int) DB::table('rebate_records')
             ->where('ticket_item_id', $ticketItemId)
             ->where('rebate_type', 'extra')
-            ->whereIn('status', ['accrued', 'reversed'])
+            ->whereIn('status', ['accrued', 'in_bill', 'settled', 'reversed'])
             ->whereBetween('created_at', [$periodStart, $periodEnd])
             ->sum('rebate_amount');
     }

app/Services/AgentSettlement/AgentSettlementBillAdjustmentService.php

@@ -21,6 +21,7 @@ final class AgentSettlementBillAdjustmentService
         string $adjustmentType,
         ?string $reason,
         int $adminUserId,
+        ?string $idempotencyKey = null,
     ): int {
         $original = DB::table('settlement_bills')->where('id', $originalBillId)->first();
         if ($original === null) {
@@ -45,11 +46,38 @@ final class AgentSettlementBillAdjustmentService
             ]);
         }
 
+        if ($idempotencyKey !== null && $idempotencyKey !== '') {
+            $existing = DB::table('settlement_adjustments')
+                ->where('original_bill_id', $originalBillId)
+                ->where('idempotency_key', $idempotencyKey)
+                ->first();
+            if ($existing !== null) {
+                return (int) DB::table('settlement_bills')
+                    ->where('reversed_bill_id', $originalBillId)
+                    ->where('bill_type', 'adjustment')
+                    ->value('id');
+            }
+        }
+
         $type = in_array($adjustmentType, ['adjustment', 'reversal'], true)
             ? $adjustmentType
             : 'adjustment';
 
-        return (int) DB::transaction(function () use ($original, $amount, $type, $reason, $adminUserId): int {
+        return (int) DB::transaction(function () use ($original, $amount, $type, $reason, $adminUserId, $idempotencyKey): int {
+            if ($idempotencyKey !== null && $idempotencyKey !== '') {
+                $existing = DB::table('settlement_adjustments')
+                    ->where('original_bill_id', (int) $original->id)
+                    ->where('idempotency_key', $idempotencyKey)
+                    ->lockForUpdate()
+                    ->first();
+                if ($existing !== null) {
+                    return (int) DB::table('settlement_bills')
+                        ->where('reversed_bill_id', (int) $original->id)
+                        ->where('bill_type', 'adjustment')
+                        ->value('id');
+                }
+            }
+
             $now = now();
             $newBillId = (int) DB::table('settlement_bills')->insertGetId([
                 'settlement_period_id' => (int) $original->settlement_period_id,
@@ -81,6 +109,7 @@ final class AgentSettlementBillAdjustmentService
                 'adjustment_type' => $type,
                 'amount' => $amount,
                 'reason' => $reason,
+                'idempotency_key' => $idempotencyKey,
                 'created_by' => $adminUserId > 0 ? $adminUserId : null,
                 'created_at' => $now,
                 'updated_at' => $now,

app/Services/AgentSettlement/AgentSettlementPeriodCloseService.php

@@ -46,57 +46,59 @@ final class AgentSettlementPeriodCloseService
             (string) $period->period_end,
         );
 
-        try {
-            $aggregate = $this->aggregator->aggregate($adminSiteId, $periodStart, $periodEnd);
-        } catch (\InvalidArgumentException $e) {
-            if (str_starts_with($e->getMessage(), 'share_snapshot_missing')) {
-                throw ValidationException::withMessages([
-                    'period' => ['share_snapshot_missing'],
-                ]);
+        return DB::transaction(function () use ($periodId, $period, $adminSiteId, $periodStart, $periodEnd): array {
+            try {
+                $aggregate = $this->aggregator->aggregate($adminSiteId, $periodStart, $periodEnd);
+            } catch (\InvalidArgumentException $e) {
+                if (str_starts_with($e->getMessage(), 'share_snapshot_missing')) {
+                    throw ValidationException::withMessages([
+                        'period' => ['share_snapshot_missing'],
+                    ]);
+                }
+
+                throw $e;
             }
 
-            throw $e;
-        }
+            $billIds = $this->billGenerator->generate($periodId, $adminSiteId, $aggregate);
 
-        $billIds = $this->billGenerator->generate($periodId, $adminSiteId, $aggregate);
+            $roundingDiff = $this->platformRounding->apply($periodId, $aggregate);
 
-        $roundingDiff = $this->platformRounding->apply($periodId, $aggregate);
+            $rebateStats = $this->periodCloseRebate->dispatchAndAllocate($periodId, $adminSiteId, $periodStart, $periodEnd);
 
-        $rebateStats = $this->periodCloseRebate->dispatchAndAllocate($periodId, $periodStart, $periodEnd);
+            $unsettled = $this->unsettledWarning->countForSite($adminSiteId, $periodStart, $periodEnd);
 
-        $unsettled = $this->unsettledWarning->countForSite($adminSiteId, $periodStart, $periodEnd);
+            DB::table('settlement_periods')->where('id', $periodId)->update([
+                'status' => 'closed',
+                'updated_at' => now(),
+            ]);
 
-        DB::table('settlement_periods')->where('id', $periodId)->update([
-            'status' => 'closed',
-            'updated_at' => now(),
-        ]);
+            $siteCode = (string) DB::table('admin_sites')->where('id', $adminSiteId)->value('code');
 
-        $siteCode = (string) DB::table('admin_sites')->where('id', $adminSiteId)->value('code');
+            DB::table('share_ledger')
+                ->whereIn('id', function ($query) use ($siteCode, $periodStart, $periodEnd): void {
+                    $query->select('sl.id')
+                        ->from('share_ledger as sl')
+                        ->join('players as p', 'p.id', '=', 'sl.player_id')
+                        ->where('p.site_code', $siteCode)
+                        ->whereNull('sl.settlement_period_id')
+                        ->whereBetween('sl.settled_at', [$periodStart, $periodEnd]);
+                })
+                ->update(['settlement_period_id' => $periodId]);
 
-        DB::table('share_ledger')
-            ->whereIn('id', function ($query) use ($siteCode, $periodStart, $periodEnd): void {
-                $query->select('sl.id')
-                    ->from('share_ledger as sl')
-                    ->join('players as p', 'p.id', '=', 'sl.player_id')
-                    ->where('p.site_code', $siteCode)
-                    ->whereNull('sl.settlement_period_id')
-                    ->whereBetween('sl.settled_at', [$periodStart, $periodEnd]);
-            })
-            ->update(['settlement_period_id' => $periodId]);
+            $this->reconcileAllocatedCreditForSite($adminSiteId);
 
-        $this->reconcileAllocatedCreditForSite($adminSiteId);
-
-        return [
-            'period_id' => $periodId,
-            'bill_ids' => $billIds,
-            'player_count' => count($aggregate['players']),
-            'agent_edges' => $aggregate['agent_edges'],
-            'rebate_dispatched' => $rebateStats['dispatched'],
-            'rebate_allocations' => $rebateStats['allocations'],
-            'unsettled_ticket_count' => $unsettled['count'],
-            'unsettled_ticket_sample' => $unsettled['ticket_item_ids'],
-            'platform_rounding_adjustment' => $roundingDiff,
-        ];
+            return [
+                'period_id' => $periodId,
+                'bill_ids' => $billIds,
+                'player_count' => count($aggregate['players']),
+                'agent_edges' => $aggregate['agent_edges'],
+                'rebate_dispatched' => $rebateStats['dispatched'],
+                'rebate_allocations' => $rebateStats['allocations'],
+                'unsettled_ticket_count' => $unsettled['count'],
+                'unsettled_ticket_sample' => $unsettled['ticket_item_ids'],
+                'platform_rounding_adjustment' => $roundingDiff,
+            ];
+        });
     }
 
     /** 关账后按真理源重算各代理「已下发额度」，避免与直属玩家/下级代理授信脱节。 */

app/Services/AgentSettlement/CreditLedgerBetFlowPresenter.php

@@ -13,7 +13,7 @@ final class CreditLedgerBetFlowPresenter
 
     public const DISPLAY_GAME_SETTLEMENT = 'game_settlement';
 
-    private const SETTLEMENT_REASONS = ['bet_hold_release', 'game_settlement_loss'];
+    private const SETTLEMENT_REASONS = ['bet_hold_release', 'game_settlement_loss', 'game_settlement_win'];
 
     /**
      * @param  list<object>  $rows  credit_ledger 行（含 reason、ref_type、ref_id、amount、created_at）
@@ -159,12 +159,17 @@ final class CreditLedgerBetFlowPresenter
      */
     private function stakeMinorForSettlement(object $settlement, int $ticketId, array $ticketRefs): int
     {
-        $fromLoss = abs((int) ($settlement->amount ?? 0));
-        if ($fromLoss > 0) {
-            return $fromLoss;
+        $fromTicketRef = (int) ($ticketRefs[$ticketId]['actual_deduct_amount'] ?? 0);
+        if ($fromTicketRef > 0) {
+            return $fromTicketRef;
         }
 
-        return (int) ($ticketRefs[$ticketId]['actual_deduct_amount'] ?? 0);
+        $amount = (int) ($settlement->amount ?? 0);
+        if ($amount < 0) {
+            return abs($amount);
+        }
+
+        return 0;
     }
 
     /**
@@ -174,6 +179,7 @@ final class CreditLedgerBetFlowPresenter
     private function mergeSettlementEntries(int $ticketId, array $entries, array $ticketRefs): ?object
     {
         $loss = null;
+        $win = null;
         $release = null;
         $latestAt = null;
 
@@ -181,6 +187,8 @@ final class CreditLedgerBetFlowPresenter
             $reason = (string) ($entry->reason ?? '');
             if ($reason === 'game_settlement_loss') {
                 $loss = $entry;
+            } elseif ($reason === 'game_settlement_win') {
+                $win = $entry;
             } elseif ($reason === 'bet_hold_release') {
                 $release = $entry;
             }
@@ -191,17 +199,17 @@ final class CreditLedgerBetFlowPresenter
             }
         }
 
-        $primary = $loss ?? $release;
+        $primary = $loss ?? $win ?? $release;
         if ($primary === null) {
             return null;
         }
 
         $signed = $loss !== null
             ? (int) $loss->amount
-            : 0;
+            : ($win !== null ? (int) $win->amount : 0);
 
         return (object) [
-            'id' => (int) ($loss->id ?? $release->id ?? 0),
+            'id' => (int) ($loss->id ?? $win->id ?? $release->id ?? 0),
             'amount' => $signed,
             'reason' => self::DISPLAY_GAME_SETTLEMENT,
             'ref_type' => 'ticket_item',

app/Services/AgentSettlement/PeriodCloseRebateService.php

@@ -15,10 +15,11 @@ final class PeriodCloseRebateService
      */
     public function dispatchAndAllocate(
         int $periodId,
+        int $adminSiteId,
         string $periodStart,
         string $periodEnd,
     ): array {
-        $rebateIds = $this->dispatchAccruedToPeriod($periodId, $periodStart, $periodEnd);
+        $rebateIds = $this->dispatchAccruedToPeriod($periodId, $adminSiteId, $periodStart, $periodEnd);
         $allocationCount = $this->buildAllocations($periodId, $rebateIds);
 
         return [
@@ -30,14 +31,18 @@ final class PeriodCloseRebateService
     /**
      * @return list<int>
      */
-    private function dispatchAccruedToPeriod(int $periodId, string $periodStart, string $periodEnd): array
+    private function dispatchAccruedToPeriod(int $periodId, int $adminSiteId, string $periodStart, string $periodEnd): array
     {
+        $siteCode = (string) DB::table('admin_sites')->where('id', $adminSiteId)->value('code');
+
         $ids = DB::table('rebate_records as rr')
             ->join('ticket_items as ti', 'ti.id', '=', 'rr.ticket_item_id')
             ->join('share_ledger as sl', function ($join): void {
                 $join->on('sl.ticket_item_id', '=', 'ti.id')
                     ->whereNull('sl.reversal_of_id');
             })
+            ->join('players as p', 'p.id', '=', 'rr.player_id')
+            ->where('p.site_code', $siteCode)
             ->where('rr.status', 'accrued')
             ->whereBetween('sl.settled_at', [$periodStart, $periodEnd])
             ->pluck('rr.id')

app/Services/AgentSettlement/SettlementCenterLedgerService.php

@@ -299,6 +299,7 @@ final class SettlementCenterLedgerService
                 'bet_hold',
                 'bet_hold_release',
                 'game_settlement_loss',
+                'game_settlement_win',
             ]);
         }
 
@@ -955,6 +956,7 @@ final class SettlementCenterLedgerService
                 'bet_hold',
                 'bet_hold_release',
                 'game_settlement_loss',
+                'game_settlement_win',
             ])
             ->select([
                 'cl.id',
@@ -1252,14 +1254,19 @@ final class SettlementCenterLedgerService
             return [];
         }
 
+        $adminSiteId = (int) DB::table('admin_sites')->where('code', $siteCode)->value('id');
+        if ($adminSiteId <= 0) {
+            return [];
+        }
+
         $query = DB::table('settlement_adjustments as sa')
             ->leftJoin('settlement_bills as sb', 'sb.id', '=', 'sa.original_bill_id')
             ->leftJoin('settlement_periods as sp', 'sp.id', '=', 'sa.settlement_period_id')
+            ->where('sp.admin_site_id', $adminSiteId)
             ->leftJoin('players as p', function ($join): void {
                 $join->on('p.id', '=', 'sb.owner_id')
                     ->where('sb.owner_type', '=', 'player');
             })
-            ->where('p.site_code', $siteCode)
             ->whereIn('sa.id', $ids)
             ->leftJoin('agent_nodes as da', 'da.id', '=', 'p.agent_node_id')
             ->leftJoin('agent_nodes as pa', 'pa.id', '=', 'da.parent_id')
@@ -1281,15 +1288,21 @@ final class SettlementCenterLedgerService
                 'p.auth_source',
                 'p.funding_mode',
                 'p.default_currency',
-                'da.id as direct_agent_id',
-                'da.code as direct_agent_code',
-                'da.name as direct_agent_name',
+                DB::raw('COALESCE(da.id, owner_an.id) as direct_agent_id'),
+                DB::raw('COALESCE(da.code, owner_an.code) as direct_agent_code'),
+                DB::raw('COALESCE(da.name, owner_an.name) as direct_agent_name'),
                 'pa.id as parent_agent_id',
                 'pa.code as parent_agent_code',
                 'pa.name as parent_agent_name',
-            ]);
+            ])
+            ->selectRaw('COALESCE(p.site_code, ?) as site_code', [$siteCode]);
 
-        AdminAgentSettlementScope::applyDirectPlayersToAlias($query, $admin, 'p');
+        $query->leftJoin('agent_nodes as owner_an', function ($join): void {
+            $join->on('owner_an.id', '=', 'sb.owner_id')
+                ->where('sb.owner_type', '=', 'agent');
+        });
+
+        AdminAgentSettlementScope::applySubtreeToBillsQuery($query, $admin, 'sb');
         $this->applyLedgerSiteScope($query, $admin, 'sp');
 
         return $query->get()->all();

app/Services/AgentSettlement/SettlementPaymentService.php

@@ -22,11 +22,34 @@ final class SettlementPaymentService
     }
 
     /**
-     * @param  array{method?: string|null, proof?: string|null, remark?: string|null}  $meta
+     * @param  array{method?: string|null, proof?: string|null, remark?: string|null, idempotency_key?: string|null}  $meta
      */
     public function recordPayment(int $billId, int $amount, int $adminUserId, array $meta = []): void
     {
-        DB::transaction(function () use ($billId, $amount, $adminUserId, $meta): void {
+        $idempotencyKey = $meta['idempotency_key'] ?? null;
+
+        if ($idempotencyKey !== null && $idempotencyKey !== '') {
+            $existing = DB::table('payment_records')
+                ->where('settlement_bill_id', $billId)
+                ->where('idempotency_key', $idempotencyKey)
+                ->first();
+            if ($existing !== null) {
+                return;
+            }
+        }
+
+        DB::transaction(function () use ($billId, $amount, $adminUserId, $meta, $idempotencyKey): void {
+            if ($idempotencyKey !== null && $idempotencyKey !== '') {
+                $existing = DB::table('payment_records')
+                    ->where('settlement_bill_id', $billId)
+                    ->where('idempotency_key', $idempotencyKey)
+                    ->lockForUpdate()
+                    ->first();
+                if ($existing !== null) {
+                    return;
+                }
+            }
+
             $bill = DB::table('settlement_bills')->where('id', $billId)->lockForUpdate()->first();
             if ($bill === null) {
                 throw new \InvalidArgumentException('bill_not_found');
@@ -63,6 +86,7 @@ final class SettlementPaymentService
                 'method' => $meta['method'] ?? null,
                 'proof' => $meta['proof'] ?? null,
                 'remark' => $meta['remark'] ?? null,
+                'idempotency_key' => $idempotencyKey,
                 'status' => 'confirmed',
                 'created_by' => $adminUserId,
                 'confirmed_by' => $adminUserId,

app/Services/Player/PlayerCreditService.php

@@ -220,18 +220,29 @@ final class PlayerCreditService
             return;
         }
 
-        $this->decreaseUsedCredit($player, $amountMinor);
+        $now = now();
 
-        DB::table('credit_ledger')->insert([
-            'owner_type' => 'player',
-            'owner_id' => $player->id,
-            'amount' => $amountMinor,
-            'reason' => 'game_settlement_win',
-            'ref_type' => 'ticket_item',
-            'ref_id' => $ticketItemId,
-            'created_at' => now(),
-            'updated_at' => now(),
-        ]);
+        // 先写 credit_ledger：以 (ref_type, ref_id, reason) partial unique 索引为幂等闸门。
+        // 已存在同 (ticket_item, game_settlement_win) 的流水则直接返回，避免并发/重入场景下重复扣减 used_credit。
+        try {
+            DB::table('credit_ledger')->insert([
+                'owner_type' => 'player',
+                'owner_id' => $player->id,
+                'amount' => $amountMinor,
+                'reason' => 'game_settlement_win',
+                'ref_type' => 'ticket_item',
+                'ref_id' => $ticketItemId,
+                'created_at' => $now,
+                'updated_at' => $now,
+            ]);
+        } catch (QueryException $e) {
+            if ($this->isUniqueViolation($e)) {
+                return;
+            }
+            throw $e;
+        }
+
+        $this->decreaseUsedCredit($player, $amountMinor);
     }
 
     public function assertMayPlaceBet(Player $player, int $amountMinor): void
@@ -276,38 +287,60 @@ final class PlayerCreditService
             return;
         }
 
-        $this->decreaseUsedCredit($player, $amountMinor);
+        $now = now();
 
-        DB::table('credit_ledger')->insert([
-            'owner_type' => 'player',
-            'owner_id' => $player->id,
-            'amount' => $amountMinor,
-            'reason' => 'bet_hold_release',
-            'ref_type' => 'ticket_item',
-            'ref_id' => $ticketItemId,
-            'created_at' => now(),
-            'updated_at' => now(),
-        ]);
+        // 先写 credit_ledger：以 (ref_type, ref_id, reason) partial unique 索引为幂等闸门。
+        // 已存在同 (ticket_item, bet_hold_release) 的流水则直接返回，避免并发/重入场景下重复扣减 used_credit。
+        try {
+            DB::table('credit_ledger')->insert([
+                'owner_type' => 'player',
+                'owner_id' => $player->id,
+                'amount' => $amountMinor,
+                'reason' => 'bet_hold_release',
+                'ref_type' => 'ticket_item',
+                'ref_id' => $ticketItemId,
+                'created_at' => $now,
+                'updated_at' => $now,
+            ]);
+        } catch (QueryException $e) {
+            if ($this->isUniqueViolation($e)) {
+                return;
+            }
+            throw $e;
+        }
+
+        $this->decreaseUsedCredit($player, $amountMinor);
     }
 
-    public function reverseBetHold(Player $player, int $amountMinor): void
+    public function reverseBetHold(Player $player, int $amountMinor, int $ticketOrderId): void
     {
         if ($amountMinor <= 0 || ! PlayerFundingMode::usesCredit($player)) {
             return;
         }
 
-        $this->decreaseUsedCredit($player, $amountMinor);
+        $now = now();
 
-        DB::table('credit_ledger')->insert([
-            'owner_type' => 'player',
-            'owner_id' => $player->id,
-            'amount' => $amountMinor,
-            'reason' => 'bet_hold_release',
-            'ref_type' => 'bet',
-            'ref_id' => null,
-            'created_at' => now(),
-            'updated_at' => now(),
-        ]);
+        // 先写 credit_ledger：以 (ref_type, ref_id, reason) partial unique 索引为幂等闸门。
+        // 已存在同 (ticket_order, bet_hold_release) 的流水则直接返回，避免并发/重入场景下重复扣减 used_credit。
+        try {
+            DB::table('credit_ledger')->insert([
+                'owner_type' => 'player',
+                'owner_id' => $player->id,
+                'amount' => $amountMinor,
+                'reason' => 'bet_hold_release',
+                'ref_type' => 'ticket_order',
+                'ref_id' => $ticketOrderId,
+                'created_at' => $now,
+                'updated_at' => $now,
+            ]);
+        } catch (QueryException $e) {
+            if ($this->isUniqueViolation($e)) {
+                return;
+            }
+            throw $e;
+        }
+
+        $this->decreaseUsedCredit($player, $amountMinor);
     }
 
     public function reverseGameSettlement(Player $player, int $gameWinLossSigned, int $ticketItemId): void
@@ -317,46 +350,51 @@ final class PlayerCreditService
         }
 
         $now = now();
+        $amountMinor = abs($gameWinLossSigned);
 
-        if ($gameWinLossSigned > 0) {
-            $amountMinor = $gameWinLossSigned;
-            $this->decreaseUsedCredit($player, $amountMinor);
-
+        // 先写 credit_ledger：以 (ref_type, ref_id, reason) partial unique 索引为幂等闸门。
+        try {
             DB::table('credit_ledger')->insert([
                 'owner_type' => 'player',
                 'owner_id' => $player->id,
-                'amount' => $amountMinor,
+                'amount' => $gameWinLossSigned > 0 ? $amountMinor : -$amountMinor,
                 'reason' => 'game_settlement_reversal',
                 'ref_type' => 'ticket_item',
                 'ref_id' => $ticketItemId,
                 'created_at' => $now,
                 'updated_at' => $now,
             ]);
+        } catch (QueryException $e) {
+            if ($this->isUniqueViolation($e)) {
+                return;
+            }
+            throw $e;
+        }
+
+        if ($gameWinLossSigned > 0) {
+            $this->decreaseUsedCredit($player, $amountMinor);
 
             return;
         }
 
-        $amountMinor = abs($gameWinLossSigned);
         $currency = (string) $player->default_currency;
         $majorDelta = CreditAmountScale::minorToMajor($amountMinor, $currency);
 
+        $row = DB::table('player_credit_accounts')
+            ->where('player_id', $player->id)
+            ->lockForUpdate()
+            ->first();
+
+        if ($row === null) {
+            return;
+        }
+
         DB::table('player_credit_accounts')
             ->where('player_id', $player->id)
             ->update([
-                'used_credit' => DB::raw('used_credit + '.$majorDelta),
+                'used_credit' => (int) $row->used_credit + $majorDelta,
                 'updated_at' => $now,
             ]);
-
-        DB::table('credit_ledger')->insert([
-            'owner_type' => 'player',
-            'owner_id' => $player->id,
-            'amount' => -$amountMinor,
-            'reason' => 'game_settlement_reversal',
-            'ref_type' => 'ticket_item',
-            'ref_id' => $ticketItemId,
-            'created_at' => $now,
-            'updated_at' => $now,
-        ]);
     }
 
     /**

app/Services/Ticket/TicketPlacementService.php

@@ -423,6 +423,7 @@ final class TicketPlacementService
                     $this->playerCreditService->reverseBetHold(
                         $player,
                         (int) $placement['success_total_actual_deduct'],
+                        (int) $order->id,
                     );
                 }
             });

database/migrations/2026_06_23_130000_add_idempotency_key_to_payment_and_adjustment.php

@@ -0,0 +1,34 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::table('payment_records', function (Blueprint $table): void {
+            $table->string('idempotency_key', 64)->nullable()->after('remark');
+            $table->index(['settlement_bill_id', 'idempotency_key']);
+        });
+
+        Schema::table('settlement_adjustments', function (Blueprint $table): void {
+            $table->string('idempotency_key', 64)->nullable()->after('reason');
+            $table->index(['original_bill_id', 'idempotency_key']);
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('payment_records', function (Blueprint $table): void {
+            $table->dropIndex(['settlement_bill_id', 'idempotency_key']);
+            $table->dropColumn('idempotency_key');
+        });
+
+        Schema::table('settlement_adjustments', function (Blueprint $table): void {
+            $table->dropIndex(['original_bill_id', 'idempotency_key']);
+            $table->dropColumn('idempotency_key');
+        });
+    }
+};

tests/Feature/AdminCreditLedgerIndexTest.php

@@ -146,6 +146,122 @@ test('admin credit ledger simple display merges release and loss per ticket', fu
         ->assertJsonPath('data.items.0.signed_amount', -1200);
 });
 
+test('admin credit ledger simple display shows win amount for winning bet', function (): void {
+    $site = DB::table('admin_sites')->where('is_default', true)->first();
+    $siteId = (int) $site->id;
+    $siteCode = (string) $site->code;
+
+    $periodId = (int) DB::table('settlement_periods')->insertGetId([
+        'admin_site_id' => $siteId,
+        'period_start' => now()->subDay(),
+        'period_end' => now()->addDay(),
+        'status' => 'open',
+        'created_at' => now(),
+        'updated_at' => now(),
+    ]);
+
+    $player = Player::query()->create([
+        'site_code' => $siteCode,
+        'site_player_id' => 'native:win-flow',
+        'auth_source' => PlayerAuthSource::LOTTERY_NATIVE,
+        'funding_mode' => PlayerFundingMode::CREDIT,
+        'username' => 'win_flow',
+        'default_currency' => 'NPR',
+        'status' => 0,
+    ]);
+
+    $now = now();
+
+    $drawId = (int) DB::table('draws')->insertGetId([
+        'draw_no' => 'WIN-FLOW-001',
+        'business_date' => now()->toDateString(),
+        'sequence_no' => 1,
+        'status' => 'settled',
+        'created_at' => $now,
+        'updated_at' => $now,
+    ]);
+
+    $orderId = (int) DB::table('ticket_orders')->insertGetId([
+        'order_no' => 'ORD-WIN-001',
+        'player_id' => $player->id,
+        'draw_id' => $drawId,
+        'currency_code' => 'NPR',
+        'total_bet_amount' => 800,
+        'total_actual_deduct' => 800,
+        'status' => 'settled',
+        'created_at' => $now,
+        'updated_at' => $now,
+    ]);
+
+    DB::table('ticket_items')->insert([
+        'id' => 99,
+        'ticket_no' => 'TI-WIN-99',
+        'order_id' => $orderId,
+        'player_id' => $player->id,
+        'draw_id' => $drawId,
+        'normalized_number' => '1234',
+        'play_code' => 'straight',
+        'total_bet_amount' => 800,
+        'actual_deduct_amount' => 800,
+        'status' => 'settled_win',
+        'win_amount' => 2500,
+        'created_at' => $now,
+        'updated_at' => $now,
+    ]);
+
+    DB::table('credit_ledger')->insert([
+        [
+            'owner_type' => 'player',
+            'owner_id' => $player->id,
+            'amount' => -800,
+            'reason' => 'bet_hold',
+            'ref_type' => 'bet',
+            'ref_id' => null,
+            'created_at' => $now->copy()->subMinutes(2),
+            'updated_at' => $now->copy()->subMinutes(2),
+        ],
+        [
+            'owner_type' => 'player',
+            'owner_id' => $player->id,
+            'amount' => 800,
+            'reason' => 'bet_hold_release',
+            'ref_type' => 'ticket_item',
+            'ref_id' => 99,
+            'created_at' => $now,
+            'updated_at' => $now,
+        ],
+        [
+            'owner_type' => 'player',
+            'owner_id' => $player->id,
+            'amount' => 2500,
+            'reason' => 'game_settlement_win',
+            'ref_type' => 'ticket_item',
+            'ref_id' => 99,
+            'created_at' => $now,
+            'updated_at' => $now,
+        ],
+    ]);
+
+    $admin = AdminUser::query()->create([
+        'username' => 'win_flow_super',
+        'name' => 'Win Flow',
+        'email' => null,
+        'password' => Hash::make('secret-strong'),
+        'status' => 0,
+    ]);
+    grantSuperAdminRole($admin);
+    $token = $admin->createToken('test', ['*'], now()->addDay())->plainTextToken;
+
+    $this->withHeader('Authorization', 'Bearer '.$token)
+        ->getJson('/api/v1/admin/credit-ledger?admin_site_id='.$siteId.'&settlement_period_id='.$periodId.'&bet_flow_display=simple')
+        ->assertOk()
+        ->assertJsonPath('data.ledger_source', 'credit_ledger')
+        ->assertJsonPath('data.total', 1)
+        ->assertJsonCount(1, 'data.items')
+        ->assertJsonPath('data.items.0.biz_type', 'game_settlement')
+        ->assertJsonPath('data.items.0.signed_amount', 2500);
+});
+
 test('settlement periods include pipeline credit and share counts', function (): void {
     $site = DB::table('admin_sites')->where('is_default', true)->first();
     $siteId = (int) $site->id;

tests/Feature/AdminPlayerManageApiTest.php

@@ -374,3 +374,89 @@ test('native player create rejects chinese username', function (): void {
         ->assertStatus(422)
         ->assertJsonPath('code', \App\Lottery\ErrorCode::ValidationFailed->value);
 });
+
+test('partial rebate update preserves the other rebate field', function (): void {
+    $siteCode = DB::table('admin_sites')->where('is_default', true)->value('code');
+    $siteCode = is_string($siteCode) && $siteCode !== '' ? $siteCode : 'default_site';
+    $rootId = (int) DB::table('agent_nodes')->where('depth', 0)->value('id');
+
+    AgentProfile::query()->updateOrCreate(
+        ['agent_node_id' => $rootId],
+        [
+            'total_share_rate' => 100,
+            'credit_limit' => 50_000,
+            'allocated_credit' => 0,
+            'used_credit' => 0,
+            'rebate_limit' => 0.02,
+            'default_player_rebate' => 0.005,
+            'can_grant_extra_rebate' => true,
+        ],
+    );
+
+    $player = Player::query()->create([
+        'site_code' => $siteCode,
+        'agent_node_id' => $rootId,
+        'site_player_id' => 'partial-rebate-1',
+        'auth_source' => PlayerAuthSource::LOTTERY_NATIVE,
+        'funding_mode' => PlayerFundingMode::CREDIT,
+        'username' => 'partial_rebate_user',
+        'default_currency' => 'NPR',
+        'status' => 0,
+    ]);
+
+    DB::table('player_credit_accounts')->insert([
+        'player_id' => $player->id,
+        'credit_limit' => 0,
+        'used_credit' => 0,
+        'frozen_credit' => 0,
+        'created_at' => now(),
+        'updated_at' => now(),
+    ]);
+
+    DB::table('player_rebate_profiles')->insert([
+        'player_id' => $player->id,
+        'game_type' => '*',
+        'inherit_from_agent' => false,
+        'rebate_rate' => 0.005,
+        'extra_rebate_rate' => 0.002,
+        'created_at' => now(),
+        'updated_at' => now(),
+    ]);
+
+    $token = playerManageAdminToken();
+
+    $this->withHeader('Authorization', 'Bearer '.$token)
+        ->putJson('/api/v1/admin/players/'.$player->id, [
+            'extra_rebate_rate' => 0.1,
+        ])
+        ->assertOk();
+
+    $this->assertDatabaseHas('player_rebate_profiles', [
+        'player_id' => $player->id,
+        'game_type' => '*',
+        'rebate_rate' => 0.005,
+        'extra_rebate_rate' => 0.001,
+    ]);
+
+    DB::table('player_rebate_profiles')
+        ->where('player_id', $player->id)
+        ->where('game_type', '*')
+        ->update([
+            'rebate_rate' => 0.008,
+            'extra_rebate_rate' => 0.001,
+            'updated_at' => now(),
+        ]);
+
+    $this->withHeader('Authorization', 'Bearer '.$token)
+        ->putJson('/api/v1/admin/players/'.$player->id, [
+            'rebate_rate' => 0.3,
+        ])
+        ->assertOk();
+
+    $this->assertDatabaseHas('player_rebate_profiles', [
+        'player_id' => $player->id,
+        'game_type' => '*',
+        'rebate_rate' => 0.003,
+        'extra_rebate_rate' => 0.001,
+    ]);
+});

tests/Feature/AgentSettlementPeriodCloseP0FixesTest.php

@@ -396,3 +396,189 @@ test('period close succeeds with no share ledger rows in window', function (): v
     expect(DB::table('settlement_bills')->where('settlement_period_id', $periodId)->count())
         ->toBe(0);
 });
+
+test('period close does not dispatch rebates from other sites', function (): void {
+    $siteA = createSiteWithRoot('rebate-site-a');
+    $siteB = createSiteWithRoot('rebate-site-b');
+
+    $playerA = Player::query()->create([
+        'site_code' => $siteA['site_code'],
+        'agent_node_id' => $siteA['root_id'],
+        'site_player_id' => 'p-rebate-a',
+        'username' => 'rebate_a',
+        'nickname' => null,
+        'default_currency' => 'NPR',
+        'status' => 0,
+    ]);
+
+    $playerB = Player::query()->create([
+        'site_code' => $siteB['site_code'],
+        'agent_node_id' => $siteB['root_id'],
+        'site_player_id' => 'p-rebate-b',
+        'username' => 'rebate_b',
+        'nickname' => null,
+        'default_currency' => 'NPR',
+        'status' => 0,
+    ]);
+
+    $settledAt = now();
+
+    $ticketAId = createTicketItemForPlayer($playerA, 'T-REB-A');
+    $ticketBId = createTicketItemForPlayer($playerB, 'T-REB-B');
+
+    $snapshotA = json_encode([
+        'total_shares' => ['rebate-site-a' => 100],
+        'chain_codes' => ['rebate-site-a'],
+        'agent_path' => [$siteA['root_id']],
+    ]);
+    $snapshotB = json_encode([
+        'total_shares' => ['rebate-site-b' => 100],
+        'chain_codes' => ['rebate-site-b'],
+        'agent_path' => [$siteB['root_id']],
+    ]);
+
+    DB::table('share_ledger')->insert([
+        [
+            'ticket_item_id' => $ticketAId,
+            'player_id' => $playerA->id,
+            'agent_node_id' => $siteA['root_id'],
+            'agent_path' => json_encode([$siteA['root_id']]),
+            'share_snapshot' => $snapshotA,
+            'game_win_loss' => 1000,
+            'basic_rebate' => 0,
+            'shared_net_win_loss' => 1000,
+            'allocations_json' => json_encode([]),
+            'settled_at' => $settledAt,
+            'created_at' => $settledAt,
+            'updated_at' => $settledAt,
+        ],
+        [
+            'ticket_item_id' => $ticketBId,
+            'player_id' => $playerB->id,
+            'agent_node_id' => $siteB['root_id'],
+            'agent_path' => json_encode([$siteB['root_id']]),
+            'share_snapshot' => $snapshotB,
+            'game_win_loss' => 2000,
+            'basic_rebate' => 0,
+            'shared_net_win_loss' => 2000,
+            'allocations_json' => json_encode([]),
+            'settled_at' => $settledAt,
+            'created_at' => $settledAt,
+            'updated_at' => $settledAt,
+        ],
+    ]);
+
+    $rebateBId = (int) DB::table('rebate_records')->insertGetId([
+        'player_id' => $playerB->id,
+        'ticket_item_id' => $ticketBId,
+        'game_type' => '*',
+        'valid_bet_amount' => 10000,
+        'rebate_rate' => 0.005,
+        'rebate_amount' => 50,
+        'rebate_type' => 'basic',
+        'owner_agent_id' => $siteB['root_id'],
+        'status' => 'accrued',
+        'created_at' => $settledAt,
+        'updated_at' => $settledAt,
+    ]);
+
+    $periodAId = (int) DB::table('settlement_periods')->insertGetId([
+        'admin_site_id' => $siteA['site_id'],
+        'period_start' => $settledAt->copy()->subDay(),
+        'period_end' => $settledAt->copy()->addDay(),
+        'status' => 'open',
+        'created_at' => now(),
+        'updated_at' => now(),
+    ]);
+
+    $result = app(AgentSettlementPeriodCloseService::class)->closePeriod($periodAId);
+
+    expect($result['rebate_dispatched'])->toBe(0);
+
+    expect((string) DB::table('rebate_records')->where('id', $rebateBId)->value('status'))
+        ->toBe('accrued');
+    expect(DB::table('rebate_records')->where('id', $rebateBId)->value('settlement_period_id'))
+        ->toBeNull();
+});
+
+test('period close nets out original and reversal share ledger rows in same period', function (): void {
+    ['site_id' => $siteId, 'site_code' => $siteCode, 'root_id' => $rootId] = createSiteWithRoot('reversal-net');
+
+    $player = Player::query()->create([
+        'site_code' => $siteCode,
+        'agent_node_id' => $rootId,
+        'site_player_id' => 'reversal-net-p1',
+        'auth_source' => 'lottery_native',
+        'funding_mode' => 'credit',
+        'username' => 'reversal_net_p',
+        'nickname' => null,
+        'default_currency' => 'NPR',
+        'status' => 0,
+    ]);
+
+    $settledAt = now();
+    $ticketId = createTicketItemForPlayer($player, 'T-REV-NET');
+
+    $snapshot = json_encode([
+        'total_shares' => ['reversal-net' => 100],
+        'chain_codes' => ['reversal-net'],
+        'agent_path' => [$rootId],
+    ]);
+
+    $originalLedgerId = (int) DB::table('share_ledger')->insertGetId([
+        'ticket_item_id' => $ticketId,
+        'player_id' => $player->id,
+        'agent_node_id' => $rootId,
+        'agent_path' => json_encode([$rootId]),
+        'share_snapshot' => $snapshot,
+        'game_win_loss' => 5000,
+        'basic_rebate' => 0,
+        'shared_net_win_loss' => 5000,
+        'allocations_json' => json_encode([]),
+        'settled_at' => $settledAt->copy()->subSecond(),
+        'created_at' => $settledAt->copy()->subSecond(),
+        'updated_at' => $settledAt->copy()->subSecond(),
+    ]);
+
+    $reversalLedgerId = (int) DB::table('share_ledger')->insertGetId([
+        'ticket_item_id' => $ticketId,
+        'player_id' => $player->id,
+        'agent_node_id' => $rootId,
+        'agent_path' => json_encode([$rootId]),
+        'share_snapshot' => $snapshot,
+        'game_win_loss' => -5000,
+        'basic_rebate' => 0,
+        'shared_net_win_loss' => -5000,
+        'allocations_json' => json_encode([]),
+        'reversal_of_id' => $originalLedgerId,
+        'settled_at' => $settledAt,
+        'created_at' => $settledAt,
+        'updated_at' => $settledAt,
+    ]);
+
+    $periodId = (int) DB::table('settlement_periods')->insertGetId([
+        'admin_site_id' => $siteId,
+        'period_start' => $settledAt->copy()->subDay(),
+        'period_end' => $settledAt->copy()->addDay(),
+        'status' => 'open',
+        'created_at' => now(),
+        'updated_at' => now(),
+    ]);
+
+    $result = app(AgentSettlementPeriodCloseService::class)->closePeriod($periodId);
+
+    expect($result['player_count'])->toBe(1);
+
+    $playerBill = DB::table('settlement_bills')
+        ->where('settlement_period_id', $periodId)
+        ->where('bill_type', 'player')
+        ->where('owner_id', $player->id)
+        ->first();
+    expect($playerBill)->not->toBeNull();
+    expect((int) $playerBill->net_amount)->toBe(0);
+
+    expect(DB::table('share_ledger')->where('id', $originalLedgerId)->value('settlement_period_id'))
+        ->toBe($periodId);
+    expect(DB::table('share_ledger')->where('id', $reversalLedgerId)->value('settlement_period_id'))
+        ->toBe($periodId);
+});

tests/Feature/CreditBetHoldReverseIdempotencyTest.php

@@ -0,0 +1,50 @@
+<?php
+
+use App\Models\Player;
+use App\Services\Player\PlayerCreditService;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Support\Facades\DB;
+
+uses(RefreshDatabase::class);
+
+test('reverse bet hold is idempotent', function (): void {
+    $site = DB::table('admin_sites')->where('is_default', true)->first();
+    $player = Player::query()->create([
+        'site_code' => (string) $site->code,
+        'agent_node_id' => (int) DB::table('agent_nodes')->where('depth', 0)->value('id'),
+        'site_player_id' => 'reverse-hold-p1',
+        'auth_source' => 'lottery_native',
+        'funding_mode' => 'credit',
+        'username' => 'reverse_hold_1',
+        'nickname' => null,
+        'default_currency' => 'NPR',
+        'status' => 0,
+    ]);
+
+    DB::table('player_credit_accounts')->insert([
+        'player_id' => $player->id,
+        'credit_limit' => 5000,
+        'used_credit' => 0,
+        'frozen_credit' => 0,
+        'created_at' => now(),
+        'updated_at' => now(),
+    ]);
+
+    $credit = app(PlayerCreditService::class);
+    $credit->assertMayPlaceBet($player, 200);
+    expect((int) DB::table('player_credit_accounts')->where('player_id', $player->id)->value('used_credit'))->toBe(2);
+
+    $credit->reverseBetHold($player, 200, 999);
+    expect((int) DB::table('player_credit_accounts')->where('player_id', $player->id)->value('used_credit'))->toBe(0);
+
+    $credit->reverseBetHold($player, 200, 999);
+    expect((int) DB::table('player_credit_accounts')->where('player_id', $player->id)->value('used_credit'))->toBe(0);
+
+    expect(DB::table('credit_ledger')
+        ->where('owner_type', 'player')
+        ->where('owner_id', $player->id)
+        ->where('reason', 'bet_hold_release')
+        ->where('ref_type', 'ticket_order')
+        ->where('ref_id', 999)
+        ->count())->toBe(1);
+});