import { Database, Search } from "lucide-react"

import { Badge } from "@/shared/ui/badge"
import { Card } from "@/shared/ui/card"

import type { SelectionStockResult } from "../api/selection.types"
import { PatternScoreDetails } from "./pattern-score"
import { categoryToneClass, getCategoryLabel } from "./selection-presentation"
import { SignalDetails } from "./signal-details"

interface SignalDetailPanelProps {
  stock: SelectionStockResult | undefined
}

export function SignalDetailPanel({ stock }: SignalDetailPanelProps) {
  if (!stock) {
    return (
      <Card
        aria-label="当前股票详情"
        className="hidden min-h-0 overflow-auto rounded-md border-border/80 bg-card p-3 md:flex md:flex-col md:justify-center"
      >
        <div className="space-y-2 text-center">
          <Search
            className="mx-auto size-5 text-muted-foreground"
            aria-hidden="true"
          />
          <p className="font-medium">暂无选中股票</p>
          <p className="text-xs leading-5 text-muted-foreground">
            从左侧列表选择一只股票查看详情。
          </p>
        </div>
      </Card>
    )
  }

  return (
    <aside
      aria-label="当前股票详情"
      className="hidden min-h-0 overflow-auto rounded-md border border-border/80 bg-card p-3 md:block"
    >
      <p className="text-[10px] font-bold tracking-[0.08em] text-muted-foreground uppercase">
        Selected stock
      </p>
      <div className="mt-2 flex items-start justify-between gap-3">
        <div className="min-w-0">
          <h2 className="truncate text-xl font-semibold tracking-tight">
            {stock.name}
          </h2>
          <p className="font-mono text-xs text-muted-foreground">
            {stock.ts_code}
          </p>
        </div>
        <Database
          className="mt-1 size-4 shrink-0 text-muted-foreground"
          aria-hidden="true"
        />
      </div>

      <p className="mt-4 text-3xl font-semibold tabular-nums tracking-tight">
        ¥ {stock.close.toFixed(2)}
      </p>

      <div className="mt-3 flex flex-wrap gap-1">
        {stock.signals.map((signal) => (
          <Badge
            key={signal.category}
            className={categoryToneClass(signal.category)}
            variant="outline"
          >
            {getCategoryLabel(signal.category)}
          </Badge>
        ))}
      </div>

      <dl className="mt-4 divide-y divide-border/60 border-y border-border/60 text-xs">
        <div className="flex items-center justify-between gap-3 py-2.5">
          <dt className="text-muted-foreground">目标交易日</dt>
          <dd className="font-medium tabular-nums">
            {stock.target_trade_date}
          </dd>
        </div>
        <div className="flex items-center justify-between gap-3 py-2.5">
          <dt className="text-muted-foreground">策略</dt>
          <dd className="font-medium">知行 B1</dd>
        </div>
      </dl>

      <section className="mt-4" aria-labelledby="pattern-score-details">
        <h3
          className="mb-2 text-xs font-medium text-muted-foreground"
          id="pattern-score-details"
        >
          图形相似度评分
        </h3>
        <PatternScoreDetails score={stock.score} />
      </section>

      <section className="mt-4" aria-labelledby="signal-detail-metrics">
        <h3
          className="mb-2 text-xs font-medium text-muted-foreground"
          id="signal-detail-metrics"
        >
          关键指标
        </h3>
        <div className="space-y-4">
          {stock.signals.map((signal) => (
            <section key={signal.category} className="space-y-2">
              <h4 className="text-xs font-medium text-foreground">
                {getCategoryLabel(signal.category)}
              </h4>
              <SignalDetails details={signal.details} />
            </section>
          ))}
        </div>
      </section>
    </aside>
  )
}