import type { DownloadBoardPlanItem } from "@umt/contracts";
import { Check, X } from "lucide-react";
import { Link } from "react-router";
import { toast } from "sonner";
import { useDecideApproval, useIsAdminSession } from "~/api/agent.ts";
import { useCancelPlan, usePlanWhy } from "~/api/downloads.ts";
import { ConfirmDialog } from "~/components/console/confirm-dialog.tsx";
import { DetailSection } from "~/components/console/detail-sheet.tsx";
import { JsonView } from "~/components/console/json-view.tsx";
import { KvList } from "~/components/console/kv-list.tsx";
import { consolePath } from "~/components/console/nav.ts";
import { StatusBadge } from "~/components/console/status-badge.tsx";
import { TechInfo } from "~/components/console/tech-info.tsx";
import { Button } from "~/components/ui/button.tsx";
import { errorMessage } from "~/lib/api.ts";
import { reasonCode } from "~/lib/reasons.ts";
import { formatBytes, formatDateTime } from "~/lib/utils.ts";
import { PLAN_WAIT, PURPOSE_LABEL, planWaitHint, whyText } from "./plan-format.ts";

// DL-3:还没提交到下载器的下载(等批准 / 等磁盘空间 / 等开启自动化 / 准备提交)在下载面板里的状态、操作与详情;
// 已提交的下载在详情里显示「为什么下这个」。

export function PlanWaitBadge({ p, hint = false }: { p: DownloadBoardPlanItem; hint?: boolean }) {
  const w = PLAN_WAIT[p.wait];
  const h = hint ? planWaitHint(p) : null;
  return (
    <span className="flex max-w-56 flex-col items-start gap-0.5">
      <StatusBadge tone={w.tone}>{w.label}</StatusBadge>
      {h ? <span className="line-clamp-2 text-micro text-muted-foreground">{h}</span> : null}
    </span>
  );
}

/** 批准 / 取消:等批准的走审批(拒绝后服务端取消这次下载);其余直接取消。都要确认 */
export function PlanActions({ p, size = "sm" }: { p: DownloadBoardPlanItem; size?: "sm" | "xs" }) {
  const decide = useDecideApproval();
  const cancel = useCancelPlan();
  const admin = useIsAdminSession();
  const approval = p.approval;
  const stop = (e: { stopPropagation: () => void }) => e.stopPropagation();
  const decideApproval = (status: "approved" | "rejected") =>
    decide
      .mutateAsync({
        id: approval?.id ?? "",
        status,
        payloadHash: approval?.payloadHash ?? "",
        ...(status === "rejected" ? { reason: "在下载面板取消" } : {}),
      })
      .then(
        () => toast.success(status === "approved" ? "已批准，开始提交下载" : "已取消这次下载"),
        (err) => {
          toast.error(errorMessage(err));
          throw err;
        },
      );
  return (
    // biome-ignore lint/a11y/noStaticElementInteractions: 只拦截行点击
    <span className="inline-flex justify-end gap-1.5 whitespace-nowrap" onClick={stop} onKeyDown={stop}>
      {approval ? (
        <ConfirmDialog
          trigger={
            <Button size={size} disabled={!admin} title={admin ? undefined : "只能在控制台管理员登录时批准"}>
              <Check />
              批准
            </Button>
          }
          title={`批准下载「${p.name}」？`}
          description={`${p.sizeBytes !== null ? `${formatBytes(p.sizeBytes, 1)}，` : ""}批准后立即提交到下载器。`}
          confirmLabel="批准"
          onConfirm={() => decideApproval("approved")}
        />
      ) : null}
      <ConfirmDialog
        trigger={
          <Button
            variant="outline"
            size={size}
            disabled={!!approval && !admin}
            title={approval && !admin ? "只能在控制台管理员登录时处理" : undefined}
          >
            <X />
            取消
          </Button>
        }
        title={`取消下载「${p.name}」？`}
        description={
          approval ? "不批准这次下载，智能体会收到结果。" : "释放为它预留的空间和额度，收录版本之后会重新找资源。"
        }
        confirmLabel="取消下载"
        cancelLabel="返回"
        destructive
        onConfirm={() =>
          approval
            ? decideApproval("rejected")
            : cancel.mutateAsync(p.id).then(
                () => toast.success("已取消这次下载"),
                (err) => {
                  toast.error(errorMessage(err));
                  throw err;
                },
              )
        }
      />
    </span>
  );
}

/** 「为什么下这个」:来源 · 目的,下一行选中理由要点;原始评估进技术信息 */
export function WhySection({
  planId,
  extraTech,
}: {
  planId: string;
  extraTech?: { label: string; value: string | null }[];
}) {
  const why = usePlanWhy(planId);
  if (why.isPending || !why.data) return null;
  const t = whyText(why.data);
  return (
    <DetailSection title="为什么下这个">
      <p className="text-sm text-foreground">{t.head}</p>
      {t.points ? <p className="mt-0.5 text-caption text-muted-foreground">{t.points}</p> : null}
      <TechInfo
        className="mt-2"
        items={[
          { label: "计划 ID", value: planId, wide: true },
          why.data.source.kind === "agent" ? { label: "会话 ID", value: why.data.source.runId, wide: true } : null,
          why.data.replaces ? { label: "被替换的文件 ID", value: why.data.replaces.assetId, wide: true } : null,
          ...(extraTech ?? []).map((x) => ({ ...x, wide: true })),
        ]}
      >
        <JsonView label="评估依据" value={why.data.evaluation} defaultOpen={false} />
      </TechInfo>
    </DetailSection>
  );
}

/** 还没提交的下载的详情(抽屉内容) */
export function PlanDetail({ p }: { p: DownloadBoardPlanItem }) {
  const hint = planWaitHint(p);
  return (
    <div className="space-y-5">
      <div className="flex flex-wrap items-center gap-2">
        <StatusBadge tone={PLAN_WAIT[p.wait].tone}>{PLAN_WAIT[p.wait].label}</StatusBadge>
        <div className="ml-auto">
          <PlanActions p={p} />
        </div>
      </div>
      {p.wait === "approval" ? (
        <p className="text-caption text-muted-foreground">这次下载要你批准后才提交，铃铛里也有提醒。</p>
      ) : hint ? (
        <p className="text-caption text-muted-foreground">{hint}。</p>
      ) : null}
      <KvList
        items={[
          {
            label: "作品",
            value: p.media ? (
              <Link to={consolePath("library", p.media.id)} className="hover:underline">
                {p.media.title}
                {p.media.year ? ` (${p.media.year})` : ""}
              </Link>
            ) : null,
          },
          { label: "大小", value: p.sizeBytes === null ? "未知" : formatBytes(p.sizeBytes, 2) },
          { label: "用途", value: PURPOSE_LABEL[p.purpose] },
          { label: "加入时间", value: formatDateTime(p.createdAt) },
        ]}
      />
      <WhySection
        planId={p.id}
        extraTech={[{ label: "等待原因码", value: reasonCode(p.waitReason) ?? p.waitReason }]}
      />
    </div>
  );
}