import type { AcquisitionSlot, CandidateEvaluation } from "@umt/contracts";
import { Link2 } from "lucide-react";
import type { ReactNode } from "react";
import { formatDateTime } from "~/lib/utils.ts";
import { CANDIDATE_DECISION, SLOT_STATUS, slotReasonText } from "./labels.ts";
import { Chip, ChipList, Tone } from "./parts.tsx";
import { summarizeCompletion, summarizeHard, summarizeSoft, summarizeUpgrade } from "./slot-rules.tsx";

/** 一个 Slot 的卡片(卡内子块,不叠玻璃):状态、规则摘要、当前资产、候选拒绝理由 */
export function SlotCard({
  slot,
  currentAsset,
  unitLabel,
  candidates = [],
  actions,
}: {
  slot: AcquisitionSlot;
  /** 当前资产的一行说明(交付特征) */
  currentAsset?: ReactNode;
  /** 绑定到某个内容单元时的说明 */
  unitLabel?: string;
  candidates?: CandidateEvaluation[];
  actions?: ReactNode;
}) {
  const st = SLOT_STATUS[slot.status];
  const hard = summarizeHard(slot.hardConditions, slot.fallback);
  const soft = summarizeSoft(slot.softPreferences);
  const upgrade = summarizeUpgrade(slot.upgradeThreshold);
  // 服务端按 (Slot, 来源资源) 只保留最新一次评估;这里再按资源去重兜底(列表已按评估时间新→旧)
  const latest = candidates.filter(
    (c, i) => candidates.findIndex((x) => x.sourceReleaseId === c.sourceReleaseId) === i,
  );
  return (
    <article className="min-w-0 rounded-xl border border-border/80 bg-foreground/[0.02] p-4">
      <header className="flex flex-wrap items-center gap-2">
        <h3 className="min-w-0 truncate font-mono text-body font-semibold text-foreground">{slot.name}</h3>
        <Tone v={st} />
        {unitLabel ? <Chip>{unitLabel}</Chip> : null}
        {slot.requireDistinctAsset ? (
          <Chip>
            <Link2 className="h-3 w-3" />
            需独立文件{slot.distinctGroup ? ` · ${slot.distinctGroup}` : ""}
          </Chip>
        ) : null}
        <span className="ml-auto text-meta text-muted-foreground tabular-nums">r{slot.revision}</span>
        {actions}
      </header>
      {slot.statusReason ? (
        <p className="mt-2 text-caption text-muted-foreground">{slotReasonText(slot.statusReason)}</p>
      ) : null}
      <dl className="mt-3 grid gap-3 text-sm sm:grid-cols-2">
        <div className="min-w-0">
          <dt className="mb-1 text-meta text-muted-foreground">硬条件</dt>
          <dd>
            <ChipList items={hard} empty="不限" />
          </dd>
        </div>
        <div className="min-w-0">
          <dt className="mb-1 text-meta text-muted-foreground">软偏好</dt>
          <dd>
            <ChipList items={soft} empty="无" />
          </dd>
        </div>
        <div className="min-w-0">
          <dt className="mb-1 text-meta text-muted-foreground">升级</dt>
          <dd>
            <ChipList items={upgrade} empty="未设置" />
          </dd>
        </div>
        <div className="min-w-0">
          <dt className="mb-1 text-meta text-muted-foreground">完成条件</dt>
          <dd className="text-caption text-foreground">{summarizeCompletion(slot.completion)}</dd>
        </div>
        <div className="min-w-0 sm:col-span-2">
          <dt className="mb-1 text-meta text-muted-foreground">当前文件</dt>
          <dd className="text-caption break-words text-foreground">{currentAsset ?? "无"}</dd>
        </div>
      </dl>
      {latest.length ? (
        <div className="mt-3 border-t border-border/60 pt-3">
          <p className="mb-2 text-meta text-muted-foreground">最近评估的资源和理由（每个资源只列最近一次）</p>
          <ul className="space-y-2">
            {latest.map((c) => (
              <li key={c.sourceReleaseId} className="min-w-0">
                <div className="flex flex-wrap items-center gap-2">
                  <Tone v={CANDIDATE_DECISION[c.decision]} />
                  <span className="min-w-0 font-mono text-meta break-all text-foreground">{c.title}</span>
                </div>
                {c.rejected.length ? (
                  <ul className="mt-1 list-disc space-y-0.5 pl-5 text-meta text-muted-foreground">
                    {c.rejected.map((r) => (
                      <li key={r.code} className="break-words">
                        {r.message}
                      </li>
                    ))}
                  </ul>
                ) : null}
                {c.reasons.length ? (
                  <p className="mt-1 text-meta break-words text-muted-foreground">
                    {c.reasons.map(slotReasonText).filter(Boolean).join(";")}
                  </p>
                ) : null}
                <p className="text-micro text-muted-foreground tabular-nums">评估于 {formatDateTime(c.evaluatedAt)}</p>
              </li>
            ))}
          </ul>
        </div>
      ) : null}
      <p className="mt-3 text-micro text-muted-foreground tabular-nums">
        最近评估 {formatDateTime(slot.lastEvaluatedAt)}
        {slot.nextEvaluateAt ? ` · 下次 ${formatDateTime(slot.nextEvaluateAt)}` : ""}
      </p>
    </article>
  );
}