feat : add audit logs

app/admin/actions.ts

@@ -9,6 +9,7 @@ import {
   deleteGlossaryAlias,
 } from "@/lib/glossary-repository";
 import { requireAdmin } from "@/lib/auth/server";
+import { auditActor } from "@/lib/audit-log";
 import { publicGuideSections } from "@/lib/guides/public-sections";
 import { publicationIssues } from "@/lib/guides/publication";
 import { getAdminGuideContentById } from "@/lib/guides/queries";
@@ -47,10 +48,11 @@ type GuideActionResult =
 type CreateGuideActionResult = Exclude<GuideActionResult, { status: "conflict" }>;
 type SaveIntent = { overwrite?: boolean };
 
-function overwriteDetails(admin: Awaited<ReturnType<typeof requireAdmin>>, intent?: SaveIntent) {
-  return intent?.overwrite
-    ? { operation: "overwrite" as const, actorName: (admin.user.name?.trim() || admin.user.email).slice(0, 100) }
-    : undefined;
+function mutationContext(
+  admin: Awaited<ReturnType<typeof requireAdmin>>,
+  intent?: SaveIntent,
+) {
+  return { actor: auditActor(admin.user), overwrite: intent?.overwrite };
 }
 
 async function runGuideAction(action: () => Promise<{ version?: number }>): Promise<GuideActionResult> {
@@ -69,9 +71,9 @@ async function runGuideAction(action: () => Promise<{ version?: number }>): Prom
 }
 
 export async function createStructuredGuide(input: unknown): Promise<CreateGuideActionResult> {
-  await requireAdmin();
+  const admin = await requireAdmin();
   try {
-    const guide = await createGuide(input);
+    const guide = await createGuide(input, mutationContext(admin));
     return { status: "saved", version: guide.version, location: `/admin/${guide.characterKey}` };
   } catch (cause) {
     return { status: "error", message: cause instanceof Error ? cause.message : "สร้าง Guide ไม่สำเร็จ" };
@@ -80,27 +82,27 @@ export async function createStructuredGuide(input: unknown): Promise<CreateGuide
 
 export async function saveWeaponSection(guideId: string, input: unknown, intent?: SaveIntent) {
   const admin = await requireAdmin();
-  return runGuideAction(() => saveWeapons(guideId, input, overwriteDetails(admin, intent)));
+  return runGuideAction(() => saveWeapons(guideId, input, mutationContext(admin, intent)));
 }
 
 export async function saveGuideOverview(guideId: string, input: unknown, intent?: SaveIntent) {
   const admin = await requireAdmin();
-  return runGuideAction(() => updateGuideBasics(guideId, input, overwriteDetails(admin, intent)));
+  return runGuideAction(() => updateGuideBasics(guideId, input, mutationContext(admin, intent)));
 }
 
 export async function saveArtifactSection(guideId: string, input: unknown, intent?: SaveIntent) {
   const admin = await requireAdmin();
-  return runGuideAction(() => saveArtifacts(guideId, input, overwriteDetails(admin, intent)));
+  return runGuideAction(() => saveArtifacts(guideId, input, mutationContext(admin, intent)));
 }
 
 export async function saveConstellationSection(guideId: string, input: unknown, intent?: SaveIntent) {
   const admin = await requireAdmin();
-  return runGuideAction(() => saveConstellations(guideId, input, overwriteDetails(admin, intent)));
+  return runGuideAction(() => saveConstellations(guideId, input, mutationContext(admin, intent)));
 }
 
 export async function saveTeamSection(guideId: string, input: unknown, intent?: SaveIntent) {
   const admin = await requireAdmin();
-  return runGuideAction(() => saveTeams(guideId, input, overwriteDetails(admin, intent)));
+  return runGuideAction(() => saveTeams(guideId, input, mutationContext(admin, intent)));
 }
 
 export async function listTeamImportGuides(currentGuideId: string) {
@@ -129,9 +131,13 @@ export async function loadTeamImportGuide(guideId: string) {
 }
 
 export async function createGuideExtra(guideId: string, input: unknown) {
-  await requireAdmin();
+  const admin = await requireAdmin();
   try {
-    const section = await createExtraSection(z.string().uuid().parse(guideId), input);
+    const section = await createExtraSection(
+      z.string().uuid().parse(guideId),
+      input,
+      mutationContext(admin),
+    );
     updateTag(pageCacheTag(guideId));
     return {
       status: "saved" as const,
@@ -160,18 +166,19 @@ export async function saveGuideExtra(
   const parsedGuideId = z.string().uuid().parse(guideId);
   const parsedSectionId = z.string().uuid().parse(sectionId);
   const result = await runGuideAction(() =>
-    saveExtraSection(parsedGuideId, parsedSectionId, input, overwriteDetails(admin, intent)),
+    saveExtraSection(parsedGuideId, parsedSectionId, input, mutationContext(admin, intent)),
   );
   if (result.status === "saved") updateTag(pageCacheTag(guideId));
   return result;
 }
 
 export async function deleteGuideExtra(guideId: string, sectionId: string) {
-  await requireAdmin();
+  const admin = await requireAdmin();
   const result = await runGuideAction(() =>
     deleteExtraSection(
       z.string().uuid().parse(guideId),
       z.string().uuid().parse(sectionId),
+      mutationContext(admin),
     ),
   );
   if (result.status === "saved") updateTag(pageCacheTag(guideId));
@@ -179,36 +186,40 @@ export async function deleteGuideExtra(guideId: string, sectionId: string) {
 }
 
 export async function reorderGuideExtras(guideId: string, input: unknown) {
-  await requireAdmin();
+  const admin = await requireAdmin();
   const result = await runGuideAction(() =>
-    reorderExtraSections(z.string().uuid().parse(guideId), input),
+    reorderExtraSections(
+      z.string().uuid().parse(guideId),
+      input,
+      mutationContext(admin),
+    ),
   );
   if (result.status === "saved") updateTag(pageCacheTag(guideId));
   return result;
 }
 
 export async function moveGuideToTrash(guideId: string) {
-  await requireAdmin();
-  return runGuideAction(() => trashGuide(guideId));
+  const admin = await requireAdmin();
+  return runGuideAction(() => trashGuide(guideId, mutationContext(admin)));
 }
 
 export async function restoreStructuredGuide(guideId: string) {
-  await requireAdmin();
-  return runGuideAction(() => restoreGuide(guideId));
+  const admin = await requireAdmin();
+  return runGuideAction(() => restoreGuide(guideId, mutationContext(admin)));
 }
 
 export async function setStructuredGuideVisibility(
   guideId: string,
   input: unknown,
 ) {
-  await requireAdmin();
+  const admin = await requireAdmin();
   const parsed = z.strictObject({
     isPublic: z.boolean(),
     expectedVersion: z.number().int().positive(),
   }).safeParse(input);
   if (!parsed.success) return { status: "error" as const, message: "ข้อมูลการเผยแพร่ไม่ถูกต้อง" };
   if (!parsed.data.isPublic) {
-    return runGuideAction(() => setGuideVisibility(guideId, parsed.data));
+    return runGuideAction(() => setGuideVisibility(guideId, parsed.data, mutationContext(admin)));
   }
 
   const guide = await getAdminGuideContentById(guideId);
@@ -223,18 +234,21 @@ export async function setStructuredGuideVisibility(
   if (issues.length) {
     return { status: "error" as const, message: issues.join(" • "), issues };
   }
-  return runGuideAction(() => setGuideVisibility(guideId, parsed.data));
+  return runGuideAction(() => setGuideVisibility(guideId, parsed.data, mutationContext(admin)));
 }
 
 export async function deleteStructuredGuide(guideId: string) {
-  await requireAdmin();
-  return runGuideAction(() => permanentlyDeleteGuide(guideId));
+  const admin = await requireAdmin();
+  return runGuideAction(() => permanentlyDeleteGuide(guideId, mutationContext(admin)));
 }
 
 export async function startCatalogSync() {
-  await requireAdmin();
+  const admin = await requireAdmin();
   try {
-    return { status: "started" as const, job: await startCatalogSyncJob() };
+    return {
+      status: "started" as const,
+      job: await startCatalogSyncJob(auditActor(admin.user)),
+    };
   } catch (cause) {
     return { status: "error" as const, message: cause instanceof Error ? cause.message : "เริ่ม Sync ไม่สำเร็จ" };
   }
@@ -246,14 +260,14 @@ export async function getCatalogSyncProgress(jobId: string) {
 }
 
 export async function cancelCatalogSync(jobId: string) {
-  await requireAdmin();
-  return cancelCatalogSyncJob(jobId);
+  const admin = await requireAdmin();
+  return cancelCatalogSyncJob(jobId, auditActor(admin.user));
 }
 
 export async function addGlossaryAlias(input: unknown) {
-  await requireAdmin();
+  const admin = await requireAdmin();
   try {
-    const alias = await createGlossaryAlias(input);
+    const alias = await createGlossaryAlias(input, auditActor(admin.user));
     updateTag(GLOSSARY_CACHE_TAG);
     return { status: "saved" as const, alias };
   } catch (cause) {
@@ -269,9 +283,12 @@ export async function addGlossaryAlias(input: unknown) {
 }
 
 export async function removeGlossaryAlias(id: string) {
-  await requireAdmin();
+  const admin = await requireAdmin();
   try {
-    await deleteGlossaryAlias(z.string().uuid().parse(id));
+    await deleteGlossaryAlias(
+      z.string().uuid().parse(id),
+      auditActor(admin.user),
+    );
     updateTag(GLOSSARY_CACHE_TAG);
     return { status: "saved" as const };
   } catch (cause) {

app/admin/activity/page.tsx

@@ -0,0 +1,212 @@
+import { redirect } from "next/navigation";
+import { connection } from "next/server";
+import { ClipboardListIcon } from "lucide-react";
+
+import { AdminHeader } from "@/components/admin/admin-header";
+import { AuditLogFilters } from "@/components/admin/audit-log-filters";
+import { Badge } from "@/components/ui/badge";
+import {
+  Empty,
+  EmptyDescription,
+  EmptyHeader,
+  EmptyMedia,
+  EmptyTitle,
+} from "@/components/ui/empty";
+import {
+  Pagination,
+  PaginationContent,
+  PaginationItem,
+  PaginationNext,
+  PaginationPrevious,
+} from "@/components/ui/pagination";
+import {
+  Table,
+  TableBody,
+  TableCell,
+  TableHead,
+  TableHeader,
+  TableRow,
+} from "@/components/ui/table";
+import {
+  AUDIT_ACTION_LABELS,
+  AUDIT_TARGET_LABELS,
+  AUDIT_TARGET_TYPES,
+  isAuditTargetType,
+  listAuditActors,
+  listAuditLogs,
+  type AuditAction,
+} from "@/lib/audit-log";
+import { getAdminSession } from "@/lib/auth/server";
+
+function pageHref(
+  page: number,
+  actorId?: string,
+  targetType?: string,
+) {
+  const query = new URLSearchParams({ page: String(page) });
+  if (actorId) query.set("actor", actorId);
+  if (targetType) query.set("type", targetType);
+  return `/admin/activity?${query}`;
+}
+
+function eventSummary(metadata: Record<string, string | number | boolean | null>) {
+  const label = metadata.sectionTitle
+    ?? metadata.guideName
+    ?? metadata.alias
+    ?? metadata.fileName
+    ?? metadata.accountLabel;
+  if (typeof label === "string") return label;
+  if (typeof metadata.error === "string") return metadata.error;
+  return null;
+}
+
+export default async function AuditLogPage({
+  searchParams,
+}: {
+  searchParams: Promise<Record<string, string | string[] | undefined>>;
+}) {
+  await connection();
+  if (!(await getAdminSession())) redirect("/admin/login");
+  const query = await searchParams;
+  const rawPage = Array.isArray(query.page) ? query.page[0] : query.page;
+  const parsedPage = Number(rawPage);
+  const page = Number.isSafeInteger(parsedPage) && parsedPage > 0
+    ? parsedPage
+    : 1;
+  const rawActorId = Array.isArray(query.actor) ? query.actor[0] : query.actor;
+  const actorId = rawActorId && rawActorId.length <= 128
+    ? rawActorId
+    : undefined;
+  const rawTargetType = Array.isArray(query.type) ? query.type[0] : query.type;
+  const targetType = isAuditTargetType(rawTargetType)
+    ? rawTargetType
+    : undefined;
+  const [{ events, pageCount, total }, actors] = await Promise.all([
+    listAuditLogs({ page, pageSize: 50, actorId, targetType }),
+    listAuditActors(),
+  ]);
+  const dateTime = new Intl.DateTimeFormat("th-TH", {
+    dateStyle: "medium",
+    timeStyle: "medium",
+    timeZone: "Asia/Bangkok",
+  });
+
+  return (
+    <div className="min-h-svh">
+      <AdminHeader />
+      <main className="mx-auto flex w-full max-w-7xl flex-col gap-6 p-4 sm:p-6 lg:p-8">
+        <header>
+          <p className="text-sm font-medium text-primary">Admin audit trail</p>
+          <h1 className="font-heading text-3xl font-semibold">Activity</h1>
+          <p className="mt-2 text-muted-foreground">
+            ประวัติการเปลี่ยนแปลงที่บันทึกสำเร็จทั้งหมด {total.toLocaleString("th-TH")} รายการ
+          </p>
+        </header>
+        <AuditLogFilters
+          key={`${actorId ?? "all"}:${targetType ?? "all"}`}
+          actors={actors}
+          targetTypes={AUDIT_TARGET_TYPES.map((value) => ({
+            value,
+            label: AUDIT_TARGET_LABELS[value],
+          }))}
+          initialActorId={actorId}
+          initialTargetType={targetType}
+        />
+        {events.length ? (
+          <>
+            <div className="rounded-xl border">
+              <Table>
+                <TableHeader>
+                  <TableRow>
+                    <TableHead>เวลา</TableHead>
+                    <TableHead>ผู้ดูแล</TableHead>
+                    <TableHead>การทำงาน</TableHead>
+                    <TableHead>เป้าหมาย</TableHead>
+                    <TableHead>รายละเอียด</TableHead>
+                  </TableRow>
+                </TableHeader>
+                <TableBody>
+                  {events.map((event) => {
+                    const action = event.action as AuditAction;
+                    const summary = eventSummary(event.metadata);
+                    return (
+                      <TableRow key={event.id}>
+                        <TableCell>{dateTime.format(event.createdAt)}</TableCell>
+                        <TableCell>{event.actorLabel}</TableCell>
+                        <TableCell>
+                          <div className="flex items-center gap-2">
+                            <span>{AUDIT_ACTION_LABELS[action] ?? event.action}</span>
+                            {event.metadata.overwrite === true ? (
+                              <Badge variant="outline">Overwrite</Badge>
+                            ) : null}
+                          </div>
+                        </TableCell>
+                        <TableCell>
+                          <div className="flex flex-col gap-1">
+                            <Badge variant="secondary">
+                              {isAuditTargetType(event.targetType)
+                                ? AUDIT_TARGET_LABELS[event.targetType]
+                                : event.targetType}
+                            </Badge>
+                            <span className="max-w-48 truncate font-mono text-xs text-muted-foreground">
+                              {event.targetId}
+                            </span>
+                          </div>
+                        </TableCell>
+                        <TableCell>
+                          <div className="flex max-w-80 flex-col gap-1">
+                            {summary ? <span className="truncate">{summary}</span> : null}
+                            <span className="text-xs text-muted-foreground">
+                              {event.scope ? `${event.scope} · ` : ""}
+                              {event.resultingVersion
+                                ? `v${event.resultingVersion}`
+                                : ""}
+                            </span>
+                          </div>
+                        </TableCell>
+                      </TableRow>
+                    );
+                  })}
+                </TableBody>
+              </Table>
+            </div>
+            {pageCount > 1 ? (
+              <Pagination>
+                <PaginationContent>
+                  {page > 1 ? (
+                    <PaginationItem>
+                      <PaginationPrevious
+                        href={pageHref(page - 1, actorId, targetType)}
+                        text="ก่อนหน้า"
+                      />
+                    </PaginationItem>
+                  ) : null}
+                  {page < pageCount ? (
+                    <PaginationItem>
+                      <PaginationNext
+                        href={pageHref(page + 1, actorId, targetType)}
+                        text="ถัดไป"
+                      />
+                    </PaginationItem>
+                  ) : null}
+                </PaginationContent>
+              </Pagination>
+            ) : null}
+          </>
+        ) : (
+          <Empty className="border">
+            <EmptyHeader>
+              <EmptyMedia variant="icon">
+                <ClipboardListIcon />
+              </EmptyMedia>
+              <EmptyTitle>ยังไม่มีกิจกรรม</EmptyTitle>
+              <EmptyDescription>
+                ลองเปลี่ยนตัวกรอง หรือกลับมาหลังจากมีการแก้ไขข้อมูล
+              </EmptyDescription>
+            </EmptyHeader>
+          </Empty>
+        )}
+      </main>
+    </div>
+  );
+}

app/admin/register/actions.ts

@@ -8,7 +8,10 @@ import { z } from "zod";
 import { getDb } from "@/db";
 import { users } from "@/db/schema";
 import { getAuth, requireAdmin } from "@/lib/auth/server";
-import { securityLog } from "@/lib/security/http";
+import {
+  auditActor,
+  writeAuditLogBestEffort,
+} from "@/lib/audit-log";
 
 export interface CreateAccountState {
   status: "idle" | "error" | "success";
@@ -45,7 +48,7 @@ export async function createAccount(
   }
 
   try {
-    await getAuth().api.createUser({
+    const created = await getAuth().api.createUser({
       body: {
         name: parsed.data.name,
         email: parsed.data.email,
@@ -55,12 +58,19 @@ export async function createAccount(
       },
       headers: await headers(),
     });
+    await writeAuditLogBestEffort(auditActor(admin.user), {
+      action: "admin_account.created",
+      targetType: "admin_account",
+      targetId: created.user.id,
+      metadata: {
+        accountLabel: created.user.name?.trim() || created.user.email,
+      },
+    });
   } catch {
     return { status: "error", message: "สร้างบัญชีไม่สำเร็จ โปรดลองอีกครั้ง" };
   }
 
   revalidatePath("/admin/register");
-  securityLog("account-created", { actorId: admin.user.id });
   return { status: "success", message: `สร้างบัญชี ${parsed.data.email} แล้ว` };
 }
 
@@ -75,16 +85,30 @@ export async function removeAccount(
     return { status: "error", message: "ไม่สามารถลบบัญชีที่กำลังใช้งานอยู่" };
   }
 
+  const [target] = await getDb()
+    .select({ name: users.name, email: users.email })
+    .from(users)
+    .where(eq(users.id, userId))
+    .limit(1);
+  if (!target) return { status: "error", message: "ไม่พบบัญชีนี้" };
+
   try {
     await getAuth().api.removeUser({
       body: { userId },
       headers: await headers(),
     });
+    await writeAuditLogBestEffort(auditActor(session.user), {
+      action: "admin_account.removed",
+      targetType: "admin_account",
+      targetId: userId,
+      metadata: {
+        accountLabel: target.name.trim() || target.email,
+      },
+    });
   } catch {
     return { status: "error", message: "ลบบัญชีไม่สำเร็จ โปรดลองอีกครั้ง" };
   }
 
   revalidatePath("/admin/register");
-  securityLog("account-removed", { actorId: session.user.id, targetId: userId });
   return { status: "success" };
 }

app/api/admin/media/[id]/complete/route.ts

@@ -4,6 +4,7 @@ import * as z from "zod";
 
 import { requireAdmin } from "@/lib/auth/server";
 import { completePendingMedia } from "@/lib/media/repository";
+import { auditActor } from "@/lib/audit-log";
 
 export async function POST(
   request: Request,
@@ -17,7 +18,9 @@ export async function POST(
     if (!z.string().uuid().safeParse(id).success) {
       return Response.json({ error: "invalid-id" }, { status: 400 });
     }
-    const result = await withUploadSlot(() => completePendingMedia(id));
+    const result = await withUploadSlot(() =>
+      completePendingMedia(id, auditActor(admin.user)),
+    );
     if (result.status === "ready") {
       return Response.json({
         media: {

app/api/admin/media/[id]/route.ts

@@ -4,6 +4,7 @@ import * as z from "zod";
 
 import { requireAdmin } from "@/lib/auth/server";
 import { discardUnreferencedMedia } from "@/lib/media/repository";
+import { auditActor } from "@/lib/audit-log";
 
 export async function DELETE(
   request: Request,
@@ -17,7 +18,7 @@ export async function DELETE(
     if (!z.string().uuid().safeParse(id).success) {
       return Response.json({ error: "invalid-id" }, { status: 400 });
     }
-    const deleted = await discardUnreferencedMedia(id);
+    const deleted = await discardUnreferencedMedia(id, auditActor(admin.user));
     return deleted
       ? new Response(null, { status: 204 })
       : Response.json({ error: "media-is-referenced-or-missing" }, { status: 409 });

app/api/admin/media/route.ts

@@ -1,8 +1,9 @@
 import { requireAdmin } from "@/lib/auth/server";
 import { uploadPublicMedia } from "@/lib/media/repository";
 import { MAX_MEDIA_BYTES, mediaUploadSchema } from "@/lib/media/validation";
-import { boundedBody, errorResponse, HttpError, requireSameOrigin, securityLog, withUploadSlot } from "@/lib/security/http";
+import { boundedBody, errorResponse, HttpError, requireSameOrigin, withUploadSlot } from "@/lib/security/http";
 import { limitRequest } from "@/lib/security/rate-limit";
+import { auditActor } from "@/lib/audit-log";
 
 export async function POST(request: Request) {
   try {
@@ -26,8 +27,7 @@ export async function POST(request: Request) {
       if (!mediaUploadSchema.safeParse({ fileName: file.name, mimeType: file.type, byteSize: file.size }).success) {
         throw new HttpError(415, "invalid-image");
       }
-      const result = await uploadPublicMedia(file, admin.user.id);
-      securityLog("media-uploaded", { actorId: admin.user.id, targetId: result.id });
+      const result = await uploadPublicMedia(file, auditActor(admin.user));
       return Response.json(result, { status: 201, headers: { "Cache-Control": "no-store" } });
     });
   } catch (cause) {

components/admin/admin-header.tsx

@@ -8,6 +8,7 @@ import {
   ImageIcon,
   LayoutDashboardIcon,
   BookOpenIcon,
+  ClipboardListIcon,
   LogOutIcon,
   PlusIcon,
   UserPlusIcon,
@@ -31,6 +32,15 @@ export function AdminHeader() {
           <span className="hidden sm:inline">ไกด์เกนชินไม่ใช่เกมมือถือ</span>
         </Link>
         <nav aria-label="Admin navigation" className="flex items-center gap-1">
+          <Button
+            variant={pathname === "/admin/activity" ? "secondary" : "ghost"}
+            size="sm"
+            nativeButton={false}
+            render={<Link href="/admin/activity" />}
+          >
+            <ClipboardListIcon data-icon="inline-start" />
+            <span className="hidden sm:inline">Activity</span>
+          </Button>
           <Button
             variant={pathname === "/admin/glossary" ? "secondary" : "ghost"}
             size="sm"

components/admin/audit-log-filters.tsx

@@ -0,0 +1,101 @@
+"use client";
+
+import { useRouter } from "next/navigation";
+import { useState } from "react";
+import { FilterIcon, RotateCcwIcon } from "lucide-react";
+
+import { Button } from "@/components/ui/button";
+import { Field, FieldGroup, FieldLabel } from "@/components/ui/field";
+import {
+  Select,
+  SelectContent,
+  SelectGroup,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from "@/components/ui/select";
+
+const ALL = "all";
+
+export function AuditLogFilters({
+  actors,
+  targetTypes,
+  initialActorId,
+  initialTargetType,
+}: {
+  actors: Array<{ id: string; label: string }>;
+  targetTypes: Array<{ value: string; label: string }>;
+  initialActorId?: string;
+  initialTargetType?: string;
+}) {
+  const router = useRouter();
+  const [actorId, setActorId] = useState(initialActorId ?? ALL);
+  const [targetType, setTargetType] = useState(initialTargetType ?? ALL);
+
+  function applyFilters() {
+    const query = new URLSearchParams();
+    if (actorId !== ALL) query.set("actor", actorId);
+    if (targetType !== ALL) query.set("type", targetType);
+    const suffix = query.toString();
+    router.push(suffix ? `/admin/activity?${suffix}` : "/admin/activity");
+  }
+
+  return (
+    <FieldGroup className="rounded-xl border p-4 md:flex-row md:items-end">
+      <Field>
+        <FieldLabel htmlFor="audit-actor">ผู้ดูแล</FieldLabel>
+        <Select value={actorId} onValueChange={(value) => value && setActorId(value)}>
+          <SelectTrigger id="audit-actor" className="w-full md:w-64">
+            <SelectValue />
+          </SelectTrigger>
+          <SelectContent>
+            <SelectGroup>
+              <SelectItem value={ALL}>ทั้งหมด</SelectItem>
+              {actors.map((actor) => (
+                <SelectItem key={actor.id} value={actor.id}>
+                  {actor.label}
+                </SelectItem>
+              ))}
+            </SelectGroup>
+          </SelectContent>
+        </Select>
+      </Field>
+      <Field>
+        <FieldLabel htmlFor="audit-target-type">ประเภทเป้าหมาย</FieldLabel>
+        <Select value={targetType} onValueChange={(value) => value && setTargetType(value)}>
+          <SelectTrigger id="audit-target-type" className="w-full md:w-56">
+            <SelectValue />
+          </SelectTrigger>
+          <SelectContent>
+            <SelectGroup>
+              <SelectItem value={ALL}>ทั้งหมด</SelectItem>
+              {targetTypes.map((type) => (
+                <SelectItem key={type.value} value={type.value}>
+                  {type.label}
+                </SelectItem>
+              ))}
+            </SelectGroup>
+          </SelectContent>
+        </Select>
+      </Field>
+      <div className="flex gap-2">
+        <Button type="button" onClick={applyFilters}>
+          <FilterIcon data-icon="inline-start" />
+          กรอง
+        </Button>
+        <Button
+          type="button"
+          variant="outline"
+          onClick={() => {
+            setActorId(ALL);
+            setTargetType(ALL);
+            router.push("/admin/activity");
+          }}
+        >
+          <RotateCcwIcon data-icon="inline-start" />
+          ล้าง
+        </Button>
+      </div>
+    </FieldGroup>
+  );
+}

db/schema.ts

@@ -177,6 +177,45 @@ export const outboxEvents = pgTable(
   ],
 );
 
+export const auditLogs = pgTable(
+  "audit_log",
+  {
+    id: bigint("id", { mode: "number" })
+      .primaryKey()
+      .generatedAlwaysAsIdentity(),
+    actorId: text("actor_id").notNull(),
+    actorLabel: text("actor_label").notNull(),
+    action: varchar("action", { length: 64 }).notNull(),
+    targetType: varchar("target_type", { length: 32 }).notNull(),
+    targetId: text("target_id").notNull(),
+    scope: varchar("scope", { length: 64 }),
+    resultingVersion: integer("resulting_version"),
+    metadata: jsonb("metadata")
+      .$type<Record<string, string | number | boolean | null>>()
+      .default({})
+      .notNull(),
+    createdAt: timestamp("created_at", { withTimezone: true })
+      .defaultNow()
+      .notNull(),
+  },
+  (table) => [
+    index("audit_log_created_idx").on(table.createdAt, table.id),
+    index("audit_log_actor_created_idx").on(
+      table.actorId,
+      table.createdAt,
+    ),
+    index("audit_log_target_created_idx").on(
+      table.targetType,
+      table.targetId,
+      table.createdAt,
+    ),
+    index("audit_log_action_created_idx").on(
+      table.action,
+      table.createdAt,
+    ),
+  ],
+);
+
 export const catalogCharacters = catalogSchema.table(
   "character",
   {

drizzle/0053_woozy_callisto.sql

@@ -0,0 +1,17 @@
+CREATE TABLE "audit_log" (
+	"id" bigint PRIMARY KEY GENERATED ALWAYS AS IDENTITY (sequence name "audit_log_id_seq" INCREMENT BY 1 MINVALUE 1 MAXVALUE 9223372036854775807 START WITH 1 CACHE 1),
+	"actor_id" text NOT NULL,
+	"actor_label" text NOT NULL,
+	"action" varchar(64) NOT NULL,
+	"target_type" varchar(32) NOT NULL,
+	"target_id" text NOT NULL,
+	"scope" varchar(64),
+	"resulting_version" integer,
+	"metadata" jsonb DEFAULT '{}'::jsonb NOT NULL,
+	"created_at" timestamp with time zone DEFAULT now() NOT NULL
+);
+--> statement-breakpoint
+CREATE INDEX "audit_log_created_idx" ON "audit_log" USING btree ("created_at","id");--> statement-breakpoint
+CREATE INDEX "audit_log_actor_created_idx" ON "audit_log" USING btree ("actor_id","created_at");--> statement-breakpoint
+CREATE INDEX "audit_log_target_created_idx" ON "audit_log" USING btree ("target_type","target_id","created_at");--> statement-breakpoint
+CREATE INDEX "audit_log_action_created_idx" ON "audit_log" USING btree ("action","created_at");

drizzle/meta/_journal.json

@@ -372,6 +372,13 @@
       "when": 1790498384479,
       "tag": "0052_round_blazing_skull",
       "breakpoints": true
+    },
+    {
+      "idx": 53,
+      "version": "7",
+      "when": 1790499026606,
+      "tag": "0053_woozy_callisto",
+      "breakpoints": true
     }
   ]
 }

lib/audit-log.test.ts

@@ -0,0 +1,60 @@
+import { describe, expect, it, vi } from "vitest";
+
+vi.mock("server-only", () => ({}));
+
+import { auditLogs } from "@/db/schema";
+import {
+  AUDIT_ACTION_LABELS,
+  AUDIT_ACTIONS,
+  AUDIT_TARGET_LABELS,
+  AUDIT_TARGET_TYPES,
+  auditActor,
+  isAuditTargetType,
+  writeAuditLog,
+} from "@/lib/audit-log";
+
+describe("audit log", () => {
+  it("builds a stable actor snapshot", () => {
+    expect(auditActor({ id: "admin-1", name: "  Editor  ", email: "[email protected]" }))
+      .toEqual({ id: "admin-1", label: "Editor" });
+    expect(auditActor({ id: "admin-2", name: "", email: "[email protected]" }))
+      .toEqual({ id: "admin-2", label: "[email protected]" });
+  });
+
+  it("keeps action and target labels complete", () => {
+    expect(Object.keys(AUDIT_ACTION_LABELS)).toHaveLength(AUDIT_ACTIONS.length);
+    expect(Object.keys(AUDIT_TARGET_LABELS)).toHaveLength(AUDIT_TARGET_TYPES.length);
+    expect(isAuditTargetType("guide")).toBe(true);
+    expect(isAuditTargetType("unknown")).toBe(false);
+  });
+
+  it("writes only the explicit compact event envelope", async () => {
+    const values = vi.fn().mockResolvedValue(undefined);
+    const insert = vi.fn(() => ({ values }));
+
+    await writeAuditLog(
+      { insert } as never,
+      { id: "admin-1", label: "Editor" },
+      {
+        action: "guide.weapon.saved",
+        targetType: "guide",
+        targetId: "guide-1",
+        scope: "weapon",
+        resultingVersion: 4,
+        metadata: { guideName: "Amber", overwrite: true },
+      },
+    );
+
+    expect(insert).toHaveBeenCalledWith(auditLogs);
+    expect(values).toHaveBeenCalledWith({
+      actorId: "admin-1",
+      actorLabel: "Editor",
+      action: "guide.weapon.saved",
+      targetType: "guide",
+      targetId: "guide-1",
+      scope: "weapon",
+      resultingVersion: 4,
+      metadata: { guideName: "Amber", overwrite: true },
+    });
+  });
+});

lib/audit-log.ts

@@ -0,0 +1,212 @@
+import "server-only";
+
+import { and, count, desc, eq } from "drizzle-orm";
+
+import { getDb, type Database } from "@/db";
+import { auditLogs } from "@/db/schema";
+import { securityLog } from "@/lib/security/http";
+
+export const AUDIT_ACTIONS = [
+  "guide.created",
+  "guide.overview.saved",
+  "guide.weapon.saved",
+  "guide.artifact.saved",
+  "guide.constellations.saved",
+  "guide.team.saved",
+  "guide.extra.created",
+  "guide.extra.saved",
+  "guide.extra.deleted",
+  "guide.extra.reordered",
+  "guide.trashed",
+  "guide.restored",
+  "guide.published",
+  "guide.unpublished",
+  "guide.permanently_deleted",
+  "glossary_alias.created",
+  "glossary_alias.deleted",
+  "media.uploaded",
+  "media.deleted",
+  "admin_account.created",
+  "admin_account.removed",
+  "catalog_sync.requested",
+  "catalog_sync.cancel_requested",
+  "catalog_sync.completed",
+  "catalog_sync.unchanged",
+  "catalog_sync.cancelled",
+  "catalog_sync.failed",
+] as const;
+
+export const AUDIT_TARGET_TYPES = [
+  "guide",
+  "extra_section",
+  "glossary_alias",
+  "media",
+  "admin_account",
+  "catalog_sync",
+] as const;
+
+export type AuditAction = (typeof AUDIT_ACTIONS)[number];
+export type AuditTargetType = (typeof AUDIT_TARGET_TYPES)[number];
+export type AuditMetadata = Record<
+  string,
+  string | number | boolean | null
+>;
+
+export interface AuditActor {
+  id: string;
+  label: string;
+}
+
+export interface AuditLogInput {
+  action: AuditAction;
+  targetType: AuditTargetType;
+  targetId: string;
+  scope?: string;
+  resultingVersion?: number;
+  metadata?: AuditMetadata;
+}
+
+type AuditWriter = Pick<Database, "insert">;
+
+export function auditActor(user: {
+  id: string;
+  name?: string | null;
+  email?: string | null;
+}): AuditActor {
+  return {
+    id: user.id,
+    label: (user.name?.trim() || user.email?.trim() || user.id).slice(0, 160),
+  };
+}
+
+export async function writeAuditLog(
+  writer: AuditWriter,
+  actor: AuditActor,
+  event: AuditLogInput,
+): Promise<void> {
+  await writer.insert(auditLogs).values({
+    actorId: actor.id,
+    actorLabel: actor.label,
+    action: event.action,
+    targetType: event.targetType,
+    targetId: event.targetId,
+    scope: event.scope,
+    resultingVersion: event.resultingVersion,
+    metadata: event.metadata ?? {},
+  });
+}
+
+export async function writeAuditLogBestEffort(
+  actor: AuditActor,
+  event: AuditLogInput,
+): Promise<void> {
+  try {
+    await writeAuditLog(getDb(), actor, event);
+  } catch {
+    securityLog("audit-write-failed", {
+      actorId: actor.id,
+      targetId: event.targetId,
+    });
+  }
+}
+
+export interface AuditLogFilters {
+  actorId?: string;
+  targetType?: AuditTargetType;
+  page?: number;
+  pageSize?: number;
+}
+
+export async function listAuditLogs(filters: AuditLogFilters = {}) {
+  const page = Math.max(1, Math.floor(filters.page ?? 1));
+  const pageSize = Math.max(1, Math.min(100, Math.floor(filters.pageSize ?? 50)));
+  const conditions = [
+    filters.actorId ? eq(auditLogs.actorId, filters.actorId) : undefined,
+    filters.targetType
+      ? eq(auditLogs.targetType, filters.targetType)
+      : undefined,
+  ].filter((condition) => condition !== undefined);
+  const where = conditions.length ? and(...conditions) : undefined;
+  const db = getDb();
+  const [events, [total]] = await Promise.all([
+    db
+      .select()
+      .from(auditLogs)
+      .where(where)
+      .orderBy(desc(auditLogs.createdAt), desc(auditLogs.id))
+      .limit(pageSize)
+      .offset((page - 1) * pageSize),
+    db
+      .select({ value: count() })
+      .from(auditLogs)
+      .where(where),
+  ]);
+  return {
+    events,
+    page,
+    pageSize,
+    total: total.value,
+    pageCount: Math.max(1, Math.ceil(total.value / pageSize)),
+  };
+}
+
+export async function listAuditActors() {
+  const rows = await getDb()
+    .selectDistinctOn([auditLogs.actorId], {
+      id: auditLogs.actorId,
+      label: auditLogs.actorLabel,
+    })
+    .from(auditLogs)
+    .orderBy(auditLogs.actorId, desc(auditLogs.id));
+  return rows.sort((left, right) =>
+    left.label.localeCompare(right.label, "th"),
+  );
+}
+
+export const AUDIT_TARGET_LABELS: Record<
+  AuditTargetType,
+  string
+> = {
+  guide: "Guide",
+  extra_section: "Extra section",
+  glossary_alias: "Glossary",
+  media: "Media",
+  admin_account: "Admin account",
+  catalog_sync: "Catalog sync",
+};
+
+export const AUDIT_ACTION_LABELS: Record<AuditAction, string> = {
+  "guide.created": "สร้าง Guide",
+  "guide.overview.saved": "บันทึก Overview",
+  "guide.weapon.saved": "บันทึก Weapons",
+  "guide.artifact.saved": "บันทึก Artifacts",
+  "guide.constellations.saved": "บันทึก Constellations",
+  "guide.team.saved": "บันทึก Team",
+  "guide.extra.created": "สร้าง Extra section",
+  "guide.extra.saved": "บันทึก Extra section",
+  "guide.extra.deleted": "ลบ Extra section",
+  "guide.extra.reordered": "เรียง Extra sections",
+  "guide.trashed": "ย้าย Guide ไปถังขยะ",
+  "guide.restored": "กู้คืน Guide",
+  "guide.published": "เผยแพร่ Guide",
+  "guide.unpublished": "ยกเลิกเผยแพร่ Guide",
+  "guide.permanently_deleted": "ลบ Guide ถาวร",
+  "glossary_alias.created": "เพิ่ม Glossary shortcut",
+  "glossary_alias.deleted": "ลบ Glossary shortcut",
+  "media.uploaded": "อัปโหลด Media",
+  "media.deleted": "ลบ Media",
+  "admin_account.created": "สร้างบัญชี Admin",
+  "admin_account.removed": "ลบบัญชี Admin",
+  "catalog_sync.requested": "เริ่ม Catalog sync",
+  "catalog_sync.cancel_requested": "ขอยกเลิก Catalog sync",
+  "catalog_sync.completed": "Catalog sync สำเร็จ",
+  "catalog_sync.unchanged": "Catalog เป็นเวอร์ชันล่าสุด",
+  "catalog_sync.cancelled": "ยกเลิก Catalog sync แล้ว",
+  "catalog_sync.failed": "Catalog sync ล้มเหลว",
+};
+
+export function isAuditTargetType(
+  value: string | undefined,
+): value is AuditTargetType {
+  return AUDIT_TARGET_TYPES.some((type) => type === value);
+}

lib/catalog/sync.ts

@@ -38,6 +38,11 @@ import {
   lunarisVersionSchema,
 } from "@/lib/catalog/version";
 import { getMediaStorage } from "@/lib/media/storage";
+import {
+  writeAuditLog,
+  writeAuditLogBestEffort,
+  type AuditActor,
+} from "@/lib/audit-log";
 
 const VERSION_URL = "https://api.lunaris.moe/data/version.json";
 const API_ROOT = "https://api.lunaris.moe/data";
@@ -676,20 +681,33 @@ export async function getCatalogSyncJob(id: string): Promise<CatalogSyncJob | nu
   return value ? JSON.parse(value) as CatalogSyncJob : null;
 }
 
-export async function cancelCatalogSyncJob(id: string): Promise<CatalogSyncJob | null> {
+export async function cancelCatalogSyncJob(
+  id: string,
+  actor: AuditActor,
+): Promise<CatalogSyncJob | null> {
   const job = await getCatalogSyncJob(id);
   if (!job || ["completed", "unchanged", "cancelled", "error"].includes(job.status)) return job;
+  await writeAuditLog(getDb(), actor, {
+    action: "catalog_sync.cancel_requested",
+    targetType: "catalog_sync",
+    targetId: id,
+  });
   return writeSyncJob({ ...job, message: "กำลังยกเลิก Sync…", status: "cancelled" });
 }
 
-export async function startCatalogSyncJob(): Promise<CatalogSyncJob> {
+export async function startCatalogSyncJob(actor: AuditActor): Promise<CatalogSyncJob> {
   const id = crypto.randomUUID();
+  await writeAuditLog(getDb(), actor, {
+    action: "catalog_sync.requested",
+    targetType: "catalog_sync",
+    targetId: id,
+  });
   const job = await writeSyncJob({ id, status: "queued", phase: "queued", completed: 0, total: 0, message: "กำลังเตรียม Sync" });
-  void executeCatalogSyncJob(job).catch(() => undefined);
+  void executeCatalogSyncJob(job, actor).catch(() => undefined);
   return job;
 }
 
-async function executeCatalogSyncJob(initial: CatalogSyncJob) {
+async function executeCatalogSyncJob(initial: CatalogSyncJob, actor: AuditActor) {
   let lastCancellationCheck = 0;
   let cancellationCheck: Promise<void> | null = null;
   const checkCancelled = async () => {
@@ -714,11 +732,30 @@ async function executeCatalogSyncJob(initial: CatalogSyncJob) {
     await writeSyncJob({ ...initial, status: "running", phase: "version", message: "กำลังตรวจสอบเวอร์ชัน Lunaris" });
     const result = await processCatalogSync(undefined, { checkCancelled, report });
     await writeSyncJob({ ...initial, status: result === "unchanged" ? "unchanged" : "completed", phase: "done", completed: 1, total: 1, message: result === "unchanged" ? "Catalog เป็นเวอร์ชันล่าสุดแล้ว" : "Sync Catalog สำเร็จ" });
+    await writeAuditLogBestEffort(actor, {
+      action: result === "unchanged"
+        ? "catalog_sync.unchanged"
+        : "catalog_sync.completed",
+      targetType: "catalog_sync",
+      targetId: initial.id,
+    });
   } catch (cause) {
     if (cause instanceof Error && cause.message === "CATALOG_SYNC_CANCELLED") {
       await writeSyncJob({ ...initial, status: "cancelled", phase: "cancelled", message: "ยกเลิก Sync แล้ว" });
+      await writeAuditLogBestEffort(actor, {
+        action: "catalog_sync.cancelled",
+        targetType: "catalog_sync",
+        targetId: initial.id,
+      });
     } else {
-      await writeSyncJob({ ...initial, status: "error", phase: "error", message: "Sync ไม่สำเร็จ", error: cause instanceof Error ? cause.message : "Unknown sync error" });
+      const error = cause instanceof Error ? cause.message : "Unknown sync error";
+      await writeSyncJob({ ...initial, status: "error", phase: "error", message: "Sync ไม่สำเร็จ", error });
+      await writeAuditLogBestEffort(actor, {
+        action: "catalog_sync.failed",
+        targetType: "catalog_sync",
+        targetId: initial.id,
+        metadata: { error: error.slice(0, 500) },
+      });
     }
   }
 }

lib/glossary-repository.ts

@@ -13,6 +13,7 @@ import {
   glossaryAliasInputSchema,
   normalizeGlossaryAlias,
 } from "@/lib/glossary";
+import { writeAuditLog, type AuditActor } from "@/lib/audit-log";
 
 const catalogTables = {
   character: catalogCharacters,
@@ -27,28 +28,52 @@ export async function listGlossaryAliases() {
   );
 }
 
-export async function createGlossaryAlias(input: unknown) {
+export async function createGlossaryAlias(input: unknown, actor: AuditActor) {
   const data = glossaryAliasInputSchema.parse(input);
   const table = catalogTables[data.kind];
-  const [item] = await getDb()
-    .select({ key: table.key })
-    .from(table)
-    .where(eq(table.key, data.catalogKey))
-    .limit(1);
-  if (!item) throw new Error("ไม่พบรายการใน Catalog");
-  const [created] = await getDb().insert(glossaryAliases).values({
-    ...data,
-    alias: data.alias.trim(),
-    normalizedAlias: normalizeGlossaryAlias(data.alias),
-  }).returning();
-  return created;
+  return getDb().transaction(async (tx) => {
+    const [item] = await tx
+      .select({ key: table.key })
+      .from(table)
+      .where(eq(table.key, data.catalogKey))
+      .limit(1);
+    if (!item) throw new Error("ไม่พบรายการใน Catalog");
+    const [created] = await tx.insert(glossaryAliases).values({
+      ...data,
+      alias: data.alias.trim(),
+      normalizedAlias: normalizeGlossaryAlias(data.alias),
+    }).returning();
+    await writeAuditLog(tx, actor, {
+      action: "glossary_alias.created",
+      targetType: "glossary_alias",
+      targetId: created.id,
+      metadata: {
+        alias: created.alias,
+        kind: created.kind,
+        catalogKey: created.catalogKey,
+      },
+    });
+    return created;
+  });
 }
 
-export async function deleteGlossaryAlias(id: string) {
-  const [deleted] = await getDb()
-    .delete(glossaryAliases)
-    .where(eq(glossaryAliases.id, id))
-    .returning();
-  if (!deleted) throw new Error("ไม่พบ Shortcut");
-  return deleted;
+export async function deleteGlossaryAlias(id: string, actor: AuditActor) {
+  return getDb().transaction(async (tx) => {
+    const [deleted] = await tx
+      .delete(glossaryAliases)
+      .where(eq(glossaryAliases.id, id))
+      .returning();
+    if (!deleted) throw new Error("ไม่พบ Shortcut");
+    await writeAuditLog(tx, actor, {
+      action: "glossary_alias.deleted",
+      targetType: "glossary_alias",
+      targetId: deleted.id,
+      metadata: {
+        alias: deleted.alias,
+        kind: deleted.kind,
+        catalogKey: deleted.catalogKey,
+      },
+    });
+    return deleted;
+  });
 }

lib/guides/mutations.ts

@@ -40,6 +40,11 @@ import {
 } from "@/lib/guides/schemas";
 import { normalizeExtraRichText } from "@/lib/rich-text";
 import type { AdminEditorScope } from "@/lib/events/invalidation";
+import {
+  writeAuditLog,
+  type AuditAction,
+  type AuditActor,
+} from "@/lib/audit-log";
 
 const DEFAULT_SECTIONS = [
   { kind: "weapon", slug: "weapon", title: "Weapons", sortOrder: 0 },
@@ -53,6 +58,40 @@ export interface GuideEventDetails {
   actorName: string;
 }
 
+export interface GuideMutationContext {
+  actor: AuditActor;
+  overwrite?: boolean;
+}
+
+function invalidationDetails(
+  context: GuideMutationContext,
+): GuideEventDetails | undefined {
+  return context.overwrite
+    ? { operation: "overwrite", actorName: context.actor.label.slice(0, 100) }
+    : undefined;
+}
+
+async function auditGuide(
+  tx: Parameters<Parameters<ReturnType<typeof getDb>["transaction"]>[0]>[0],
+  context: GuideMutationContext,
+  action: AuditAction,
+  guide: { id: string; name: string; characterKey: string; version: number },
+  scope?: AdminEditorScope,
+) {
+  await writeAuditLog(tx, context.actor, {
+    action,
+    targetType: "guide",
+    targetId: guide.id,
+    scope,
+    resultingVersion: guide.version,
+    metadata: {
+      guideName: guide.name,
+      characterKey: guide.characterKey,
+      ...(context.overwrite ? { overwrite: true } : {}),
+    },
+  });
+}
+
 export class GuideVersionConflictError extends Error {
   constructor(readonly currentVersion: number) {
     super("ข้อมูลถูกแก้ไขจากแท็บอื่น กด Save now เพื่อบันทึก Local draft ทับเวอร์ชันล่าสุด");
@@ -70,7 +109,7 @@ async function emitGuideEvents(tx: Parameters<Parameters<ReturnType<typeof getDb
   ]);
 }
 
-export async function createGuide(input: unknown) {
+export async function createGuide(input: unknown, context: GuideMutationContext) {
   const parsed = createGuideSchema.parse(input);
   const db = getDb();
   const [character] = await db.select().from(catalogCharacters).where(eq(catalogCharacters.key, parsed.characterKey)).limit(1);
@@ -103,6 +142,7 @@ export async function createGuide(input: unknown) {
     await tx.insert(artifactProfiles).values({ guideId: guide.id });
     await tx.update(media).set({ currentReferenceCount: sql`${media.currentReferenceCount} + 1` }).where(eq(media.id, parsed.coverMediaId));
     await emitGuideEvents(tx, guide.id, guide.version, true);
+    await auditGuide(tx, context, "guide.created", guide);
     return guide;
   });
 }
@@ -118,23 +158,24 @@ async function advanceGuideVersion(tx: Parameters<Parameters<ReturnType<typeof g
   return guide;
 }
 
-export async function saveWeapons(guideId: string, input: unknown, details?: GuideEventDetails) {
+export async function saveWeapons(guideId: string, input: unknown, context: GuideMutationContext) {
   const data = weaponSectionSchema.parse(input);
   const [guide] = await getDb().select().from(guides).where(eq(guides.id, guideId)).limit(1);
   if (!guide) throw new Error("ไม่พบ Guide");
   return getDb().transaction(async (tx) => {
-    const updated = await advanceGuideVersion(tx, guideId, data.expectedVersion, false, "weapon", details);
+    const updated = await advanceGuideVersion(tx, guideId, data.expectedVersion, false, "weapon", invalidationDetails(context));
     await tx.update(guideSections).set({ note: data.note }).where(and(eq(guideSections.guideId, guideId), eq(guideSections.slug, "weapon")));
     await tx.delete(weaponConditions).where(eq(weaponConditions.guideId, guideId));
     for (const [sortOrder, group] of data.groups.entries()) {
       const [created] = await tx.insert(weaponConditions).values({ guideId, name: group.name, note: group.note, sortOrder }).returning();
       if (group.rows.length) await tx.insert(weaponRecommendations).values(group.rows.map((row, rowOrder) => ({ ...row, refinement: row.refinement, overallPercent: row.overallPercent?.toString() ?? null, personalPercent: row.personalPercent?.toString() ?? null, conditionId: created.id, sortOrder: rowOrder })));
     }
+    await auditGuide(tx, context, "guide.weapon.saved", updated, "weapon");
     return updated;
   });
 }
 
-export async function updateGuideBasics(guideId: string, input: unknown, details?: GuideEventDetails) {
+export async function updateGuideBasics(guideId: string, input: unknown, context: GuideMutationContext) {
   const data = updateGuideSchema.parse(input);
   const [current] = await getDb().select().from(guides).where(eq(guides.id, guideId)).limit(1);
   if (!current) throw new Error("ไม่พบ Guide");
@@ -159,7 +200,7 @@ export async function updateGuideBasics(guideId: string, input: unknown, details
         : [];
       if (bleedingMedia.length !== bleedingMediaIds.length) throw new Error("ไม่พบภาพ Bleeding ที่อัปโหลดแล้ว");
     }
-    const updated = await advanceGuideVersion(tx, guideId, data.expectedVersion, true, "overview", details);
+    const updated = await advanceGuideVersion(tx, guideId, data.expectedVersion, true, "overview", invalidationDetails(context));
     await tx.update(guides).set({
       overview: data.overview,
       coverMediaId: data.coverMediaId,
@@ -204,16 +245,17 @@ export async function updateGuideBasics(guideId: string, input: unknown, details
         await tx.update(media).set({ currentReferenceCount: sql`${media.currentReferenceCount} + 1` }).where(eq(media.id, posterArtMediaId));
       }
     }
+    await auditGuide(tx, context, "guide.overview.saved", updated, "overview");
     return updated;
   });
 }
 
-export async function saveArtifacts(guideId: string, input: unknown, details?: GuideEventDetails) {
+export async function saveArtifacts(guideId: string, input: unknown, context: GuideMutationContext) {
   const data = artifactSectionSchema.parse(input);
   const [guide] = await getDb().select().from(guides).where(eq(guides.id, guideId)).limit(1);
   if (!guide) throw new Error("ไม่พบ Guide");
   return getDb().transaction(async (tx) => {
-    const updated = await advanceGuideVersion(tx, guideId, data.expectedVersion, false, "artifact", details);
+    const updated = await advanceGuideVersion(tx, guideId, data.expectedVersion, false, "artifact", invalidationDetails(context));
     await tx.delete(artifactConditions).where(eq(artifactConditions.guideId, guideId));
     for (const [conditionOrder, condition] of data.groups.entries()) {
       const [createdCondition] = await tx.insert(artifactConditions).values({ guideId, name: condition.name, note: condition.note, sortOrder: conditionOrder }).returning();
@@ -223,25 +265,27 @@ export async function saveArtifacts(guideId: string, input: unknown, details?: G
       }
     }
     await tx.insert(artifactProfiles).values({ guideId, sands: data.sands, goblet: data.goblet, circlet: data.circlet, substats: data.substats, recommendedConditions: data.recommendedGroups ?? [{ name: null, note: null, sands: data.sands, goblet: data.goblet, circlet: data.circlet, substats: data.substats }], targets: data.targetGroups[0]?.rows ?? [], targetConditions: data.targetGroups, talents: data.talents, note: data.note }).onConflictDoUpdate({ target: artifactProfiles.guideId, set: { sands: data.sands, goblet: data.goblet, circlet: data.circlet, substats: data.substats, recommendedConditions: data.recommendedGroups ?? [{ name: null, note: null, sands: data.sands, goblet: data.goblet, circlet: data.circlet, substats: data.substats }], targets: data.targetGroups[0]?.rows ?? [], targetConditions: data.targetGroups, talents: data.talents, note: data.note } });
+    await auditGuide(tx, context, "guide.artifact.saved", updated, "artifact");
     return updated;
   });
 }
 
-export async function saveConstellations(guideId: string, input: unknown, details?: GuideEventDetails) {
+export async function saveConstellations(guideId: string, input: unknown, context: GuideMutationContext) {
   const data = constellationSectionSchema.parse(input);
   return getDb().transaction(async (tx) => {
-    const updated = await advanceGuideVersion(tx, guideId, data.expectedVersion, false, "constellations", details);
+    const updated = await advanceGuideVersion(tx, guideId, data.expectedVersion, false, "constellations", invalidationDetails(context));
     await tx.update(guideSections).set({ note: data.note }).where(and(eq(guideSections.guideId, guideId), eq(guideSections.slug, "constellations")));
     await tx.delete(constellationConditions).where(eq(constellationConditions.guideId, guideId));
     for (const [sortOrder, group] of data.groups.entries()) {
       const [created] = await tx.insert(constellationConditions).values({ guideId, name: group.name, note: group.note, sortOrder }).returning();
       if (group.rows.length) await tx.insert(constellationRecommendations).values(group.rows.map((row) => ({ ...row, cumulativePercent: row.cumulativePercent.toString(), conditionId: created.id })));
     }
+    await auditGuide(tx, context, "guide.constellations.saved", updated, "constellations");
     return updated;
   });
 }
 
-export async function saveTeams(guideId: string, input: unknown, details?: GuideEventDetails) {
+export async function saveTeams(guideId: string, input: unknown, context: GuideMutationContext) {
   const data = teamSectionSchema.parse(input);
   const [guide] = await getDb().select().from(guides).where(eq(guides.id, guideId)).limit(1);
   if (!guide) throw new Error("ไม่พบ Guide");
@@ -265,7 +309,7 @@ export async function saveTeams(guideId: string, input: unknown, details?: Guide
     }
   }
   return getDb().transaction(async (tx) => {
-    const updated = await advanceGuideVersion(tx, guideId, data.expectedVersion, false, "team", details);
+    const updated = await advanceGuideVersion(tx, guideId, data.expectedVersion, false, "team", invalidationDetails(context));
     await tx.delete(teamConditions).where(eq(teamConditions.guideId, guideId));
     for (const [groupOrder, group] of data.groups.entries()) {
       const [condition] = await tx.insert(teamConditions).values({ guideId, name: group.name, note: group.note, sortOrder: groupOrder }).returning();
@@ -274,11 +318,16 @@ export async function saveTeams(guideId: string, input: unknown, details?: Guide
         await tx.insert(teamMembers).values(team.members.map((member, position) => ({ ...member, teamId: created.id, position, damage: member.damage.toString() })));
       }
     }
+    await auditGuide(tx, context, "guide.team.saved", updated, "team");
     return updated;
   });
 }
 
-export async function createExtraSection(guideId: string, input: unknown) {
+export async function createExtraSection(
+  guideId: string,
+  input: unknown,
+  context: GuideMutationContext,
+) {
   const data = createExtraSectionSchema.parse(input);
   return getDb().transaction(async (tx) => {
     const existing = await tx
@@ -313,6 +362,19 @@ export async function createExtraSection(guideId: string, input: unknown) {
       .returning();
     await tx.insert(extraSections).values({ sectionId: section.id });
     await emitGuideEvents(tx, guideId, updated.version, false, "extras:list");
+    await writeAuditLog(tx, context.actor, {
+      action: "guide.extra.created",
+      targetType: "extra_section",
+      targetId: section.id,
+      scope: "extras:list",
+      resultingVersion: updated.version,
+      metadata: {
+        guideId,
+        guideName: updated.name,
+        characterKey: updated.characterKey,
+        sectionTitle: section.title,
+      },
+    });
     return { ...section, version: updated.version };
   });
 }
@@ -321,7 +383,7 @@ export async function saveExtraSection(
   guideId: string,
   sectionId: string,
   input: unknown,
-  details?: GuideEventDetails,
+  context: GuideMutationContext,
 ) {
   const data = saveExtraSectionSchema.parse(input);
   return getDb().transaction(async (tx) => {
@@ -336,7 +398,7 @@ export async function saveExtraSection(
       .limit(1);
     if (!target) throw new Error("ไม่พบ Extra section");
 
-    const updated = await advanceGuideVersion(tx, guideId, data.expectedVersion, false, `extra:${sectionId}`, details);
+    const updated = await advanceGuideVersion(tx, guideId, data.expectedVersion, false, `extra:${sectionId}`, invalidationDetails(context));
     await tx
       .update(guideSections)
       .set({ title: data.section.title, enabled: true })
@@ -352,14 +414,32 @@ export async function saveExtraSection(
         sortOrder,
       })));
     }
+    await writeAuditLog(tx, context.actor, {
+      action: "guide.extra.saved",
+      targetType: "extra_section",
+      targetId: sectionId,
+      scope: `extra:${sectionId}`,
+      resultingVersion: updated.version,
+      metadata: {
+        guideId,
+        guideName: updated.name,
+        characterKey: updated.characterKey,
+        sectionTitle: data.section.title,
+        ...(context.overwrite ? { overwrite: true } : {}),
+      },
+    });
     return updated;
   });
 }
 
-export async function deleteExtraSection(guideId: string, sectionId: string) {
+export async function deleteExtraSection(
+  guideId: string,
+  sectionId: string,
+  context: GuideMutationContext,
+) {
   return getDb().transaction(async (tx) => {
     const [target] = await tx
-      .select({ id: guideSections.id })
+      .select({ id: guideSections.id, title: guideSections.title })
       .from(guideSections)
       .where(and(
         eq(guideSections.id, sectionId),
@@ -377,11 +457,28 @@ export async function deleteExtraSection(guideId: string, sectionId: string) {
     if (!updated) throw new Error("ไม่พบ Guide");
     await tx.delete(guideSections).where(eq(guideSections.id, sectionId));
     await emitGuideEvents(tx, guideId, updated.version);
+    await writeAuditLog(tx, context.actor, {
+      action: "guide.extra.deleted",
+      targetType: "extra_section",
+      targetId: sectionId,
+      scope: "extras:list",
+      resultingVersion: updated.version,
+      metadata: {
+        guideId,
+        guideName: updated.name,
+        characterKey: updated.characterKey,
+        sectionTitle: target.title,
+      },
+    });
     return updated;
   });
 }
 
-export async function reorderExtraSections(guideId: string, input: unknown) {
+export async function reorderExtraSections(
+  guideId: string,
+  input: unknown,
+  context: GuideMutationContext,
+) {
   const data = reorderExtraSectionsSchema.parse(input);
   return getDb().transaction(async (tx) => {
     const existing = await tx
@@ -403,24 +500,27 @@ export async function reorderExtraSections(guideId: string, input: unknown) {
         .set({ sortOrder: 4 + index })
         .where(eq(guideSections.id, sectionId));
     }
+    await auditGuide(tx, context, "guide.extra.reordered", updated, "extras:list");
     return updated;
   });
 }
 
-export async function trashGuide(guideId: string) {
+export async function trashGuide(guideId: string, context: GuideMutationContext) {
   return getDb().transaction(async (tx) => {
     const [guide] = await tx.update(guides).set({ trashedAt: new Date(), version: sql`${guides.version} + 1` }).where(eq(guides.id, guideId)).returning();
     if (!guide) throw new Error("ไม่พบ Guide");
     await emitGuideEvents(tx, guide.id, guide.version, true);
+    await auditGuide(tx, context, "guide.trashed", guide);
     return guide;
   });
 }
 
-export async function restoreGuide(guideId: string) {
+export async function restoreGuide(guideId: string, context: GuideMutationContext) {
   return getDb().transaction(async (tx) => {
     const [guide] = await tx.update(guides).set({ trashedAt: null, version: sql`${guides.version} + 1` }).where(eq(guides.id, guideId)).returning();
     if (!guide) throw new Error("ไม่พบ Guide");
     await emitGuideEvents(tx, guide.id, guide.version, true);
+    await auditGuide(tx, context, "guide.restored", guide);
     return guide;
   });
 }
@@ -431,6 +531,7 @@ export async function setGuideVisibility(
     isPublic: boolean;
     expectedVersion: number;
   },
+  context: GuideMutationContext,
 ) {
   return getDb().transaction(async (tx) => {
     const [guide] = await tx
@@ -458,11 +559,20 @@ export async function setGuideVisibility(
       throw new GuideVersionConflictError(current.version);
     }
     await emitGuideEvents(tx, guide.id, guide.version, true);
+    await auditGuide(
+      tx,
+      context,
+      input.isPublic ? "guide.published" : "guide.unpublished",
+      guide,
+    );
     return guide;
   });
 }
 
-export async function permanentlyDeleteGuide(guideId: string) {
+export async function permanentlyDeleteGuide(
+  guideId: string,
+  context: GuideMutationContext,
+) {
   return getDb().transaction(async (tx) => {
     const [guide] = await tx.select().from(guides).where(eq(guides.id, guideId)).limit(1);
     if (!guide?.trashedAt) throw new Error("Guide ต้องอยู่ในถังขยะก่อนลบถาวร");
@@ -476,6 +586,16 @@ export async function permanentlyDeleteGuide(guideId: string) {
       await tx.update(media).set({ currentReferenceCount: sql`greatest(${media.currentReferenceCount} - 1, 0)` }).where(eq(media.id, layer.mediaId));
     }
     await emitGuideEvents(tx, guide.id, guide.version + 1, true);
+    await writeAuditLog(tx, context.actor, {
+      action: "guide.permanently_deleted",
+      targetType: "guide",
+      targetId: guide.id,
+      resultingVersion: guide.version + 1,
+      metadata: {
+        guideName: guide.name,
+        characterKey: guide.characterKey,
+      },
+    });
     return { version: guide.version + 1 };
   });
 }

lib/media/repository.ts

@@ -20,6 +20,7 @@ import {
   safeObjectFileName,
   type MediaUploadInput,
 } from "@/lib/media/validation";
+import { writeAuditLog, type AuditActor } from "@/lib/audit-log";
 
 export async function createPendingMedia(
   input: MediaUploadInput,
@@ -48,7 +49,7 @@ export async function createPendingMedia(
 
 export async function uploadPublicMedia(
   file: File,
-  authorId: string,
+  actor: AuditActor,
 ): Promise<{ id: string; url: string; fileName: string; width: number; height: number }> {
   const parsed = mediaUploadSchema.parse({
     fileName: file.name,
@@ -63,17 +64,29 @@ export async function uploadPublicMedia(
   const storage = await getMediaStorage();
   await storage.write(objectKey, bytes, { type: parsed.mimeType, acl: "public-read" });
   try {
-    await getDb().insert(media).values({
-      id,
-      objectKey,
-      fileName: parsed.fileName,
-      mimeType: parsed.mimeType,
-      byteSize: parsed.byteSize,
-      width,
-      height,
-      status: "ready",
-      currentReferenceCount: 0,
-      createdById: authorId,
+    await getDb().transaction(async (tx) => {
+      await tx.insert(media).values({
+        id,
+        objectKey,
+        fileName: parsed.fileName,
+        mimeType: parsed.mimeType,
+        byteSize: parsed.byteSize,
+        width,
+        height,
+        status: "ready",
+        currentReferenceCount: 0,
+        createdById: actor.id,
+      });
+      await writeAuditLog(tx, actor, {
+        action: "media.uploaded",
+        targetType: "media",
+        targetId: id,
+        metadata: {
+          fileName: parsed.fileName,
+          mimeType: parsed.mimeType,
+          byteSize: parsed.byteSize,
+        },
+      });
     });
   } catch (cause) {
     await storage.delete(objectKey).catch(() => undefined);
@@ -88,7 +101,7 @@ export async function uploadPublicMedia(
   };
 }
 
-export async function completePendingMedia(mediaId: string) {
+export async function completePendingMedia(mediaId: string, actor: AuditActor) {
   const [record] = await getDb()
     .select()
     .from(media)
@@ -124,17 +137,38 @@ export async function completePendingMedia(mediaId: string) {
     // A still-valid presigned PUT must not be able to overwrite verified bytes.
     const objectKey = `media/${record.id}/verified/${crypto.randomUUID()}/${safeObjectFileName(record.fileName)}`;
     await storage.write(objectKey, bytes, { type: record.mimeType, acl: "private" });
-    const [updated] = await getDb()
-      .update(media)
-      .set({
-        status: "ready",
-        byteSize: bytes.byteLength,
-        checksum: createHash("sha256").update(bytes).digest("hex"),
-        objectKey,
-        ...dimensions,
-      })
-      .where(and(eq(media.id, record.id), eq(media.status, "pending")))
-      .returning();
+    let updated: typeof record | undefined;
+    try {
+      updated = await getDb().transaction(async (tx) => {
+        const [ready] = await tx
+          .update(media)
+          .set({
+            status: "ready",
+            byteSize: bytes.byteLength,
+            checksum: createHash("sha256").update(bytes).digest("hex"),
+            objectKey,
+            ...dimensions,
+          })
+          .where(and(eq(media.id, record.id), eq(media.status, "pending")))
+          .returning();
+        if (ready) {
+          await writeAuditLog(tx, actor, {
+            action: "media.uploaded",
+            targetType: "media",
+            targetId: ready.id,
+            metadata: {
+              fileName: ready.fileName,
+              mimeType: ready.mimeType,
+              byteSize: ready.byteSize,
+            },
+          });
+        }
+        return ready;
+      });
+    } catch (cause) {
+      await storage.delete(objectKey).catch(() => undefined);
+      throw cause;
+    }
     if (!updated) await storage.delete(objectKey).catch(() => undefined);
     else await file.delete().catch(() => undefined);
     return updated
@@ -145,10 +179,28 @@ export async function completePendingMedia(mediaId: string) {
   }
 }
 
-export async function discardUnreferencedMedia(mediaId: string): Promise<boolean> {
+export async function discardUnreferencedMedia(
+  mediaId: string,
+  actor: AuditActor,
+): Promise<boolean> {
   // Delete atomically under the FK/reference-count constraints before storage.
-  const [record] = await getDb().delete(media)
-    .where(and(eq(media.id, mediaId), eq(media.currentReferenceCount, 0))).returning();
+  const record = await getDb().transaction(async (tx) => {
+    const [deleted] = await tx.delete(media)
+      .where(and(eq(media.id, mediaId), eq(media.currentReferenceCount, 0))).returning();
+    if (deleted) {
+      await writeAuditLog(tx, actor, {
+        action: "media.deleted",
+        targetType: "media",
+        targetId: deleted.id,
+        metadata: {
+          fileName: deleted.fileName,
+          mimeType: deleted.mimeType,
+          byteSize: deleted.byteSize,
+        },
+      });
+    }
+    return deleted;
+  });
   if (!record) return false;
   await (await getMediaStorage()).delete(record.objectKey).catch(() => undefined);
   return true;