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import type { HeadInfo, Ref } from "@/worker/git";
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import { getRepoActivity, getRepoStub } from "@/worker/common";
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import {
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  computeStorageMetrics,
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  computeCompactionStatus,
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  getDefaultBranchFromHead,
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  loadAdminPackRefIndexState,
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  loadHeadAndRefsCached,
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  resolveAdminPageRepoAccess,
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  type DebugState,
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} from "./helpers";
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import type { AppContext } from "../hono";
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import { renderUiDocumentResponse } from "../uiResponse";
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export async function handleAdminPage(c: AppContext<"/:owner/:repo/admin">) {
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  const env = c.env;
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  const owner = c.req.param("owner");
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  const repo = c.req.param("repo");
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  const access = await resolveAdminPageRepoAccess(c, owner, repo);
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  if (access.kind === "response") return access.response;
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  const { route, cacheCtx, viewer, limiter } = access;
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  const repoId = route.doName;
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  const stub = getRepoStub(env, repoId);
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  const [rawState, refsData, progress] = await Promise.all([
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    limiter
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      .run("do:admin-page-debug-state", () => stub.debugState())
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      .catch(() => ({}) as Partial<DebugState>),
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    loadHeadAndRefsCached(env, cacheCtx, repoId),
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    getRepoActivity(env, repoId, cacheCtx),
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  ]);
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  const state = await loadAdminPackRefIndexState({
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    env,
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    repoId,
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    state: rawState,
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    cacheCtx,
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  });
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  const head: HeadInfo | undefined = refsData?.head || undefined;
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  const refs: Ref[] = refsData?.refs || [];
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  const { storageSize, packCount, packList, supersededPackCount } = computeStorageMetrics(state);
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  const { compactionStatus, compactionStartedAt } = computeCompactionStatus(state.compaction);
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  const defaultBranch = getDefaultBranchFromHead(head);
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  const refEnc = encodeURIComponent(defaultBranch);
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  return renderUiDocumentResponse(
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    env,
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    "admin",
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    {
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      title: `Admin · ${owner}/${repo}`,
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      owner,
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      repo,
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      refEnc,
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      head,
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      refs,
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      storageSize,
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      packCount,
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      packList,
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      state,
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      defaultBranch,
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      compactionStatus,
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      compactionStartedAt,
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      compactionData: state.compaction,
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      supersededPackCount,
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      progress,
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    },
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    {
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      cacheControl: "no-store",
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      failureBody: "Failed to render view",
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      viewer,
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    }
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  );
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}