import { useMemo, useState } from "react"

import { Check, Copy, Terminal } from "lucide-react"

import { Button } from "@/components/ui/button"
import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card"
import { buildUploadCommand } from "@/lib/submission-utils"

type UploadCommandPanelProps = {
  presignedUrl: string
}

export function UploadCommandPanel({
  presignedUrl,
}: UploadCommandPanelProps) {
  const [copied, setCopied] = useState<"url" | "command" | null>(null)

  const uploadCommand = useMemo(
    () => buildUploadCommand(presignedUrl),
    [presignedUrl]
  )

  async function handleCopy(value: string, kind: "url" | "command") {
    await navigator.clipboard.writeText(value)
    setCopied(kind)

    window.setTimeout(() => {
      setCopied((current) => (current === kind ? null : current))
    }, 1400)
  }

  return (
    <Card
      size="sm"
      className="min-w-0 max-w-full border-border bg-card text-card-foreground shadow-none"
    >
      <CardHeader className="gap-2">
        <CardTitle className="flex items-center gap-2 text-sm sm:text-base">
          <Terminal className="size-4" />
          Upload Docker image tar
        </CardTitle>
        <p className="text-sm text-muted-foreground">
          This pre-signed URL expires in 3 hours. Upload your image tar with
          the generated command below.
        </p>
      </CardHeader>
      <CardContent className="min-w-0 space-y-4">
        <div className="space-y-2">
          <div className="flex flex-col items-start gap-2 sm:flex-row sm:items-center sm:justify-between">
            <p className="text-xs font-semibold uppercase tracking-[0.18em] text-muted-foreground">
              Pre-signed URL
            </p>
            <Button
              size="sm"
              type="button"
              variant="outline"
              onClick={() => void handleCopy(presignedUrl, "url")}
            >
              {copied === "url" ? <Check className="size-4" /> : <Copy className="size-4" />}
              {copied === "url" ? "Copied" : "Copy"}
            </Button>
          </div>
          <pre className="max-w-full overflow-x-auto rounded-xl border border-border bg-muted/40 px-4 py-3 text-xs text-muted-foreground">
            <code>{presignedUrl}</code>
          </pre>
        </div>
        <div className="space-y-2">
          <div className="flex flex-col items-start gap-2 sm:flex-row sm:items-center sm:justify-between">
            <p className="text-xs font-semibold uppercase tracking-[0.18em] text-muted-foreground">
              Shell command
            </p>
            <Button
              size="sm"
              type="button"
              variant="outline"
              onClick={() => void handleCopy(uploadCommand, "command")}
            >
              {copied === "command" ? (
                <Check className="size-4" />
              ) : (
                <Copy className="size-4" />
              )}
              {copied === "command" ? "Copied" : "Copy"}
            </Button>
          </div>
          <pre className="max-w-full overflow-x-auto rounded-xl border border-border bg-zinc-950 px-4 py-3 text-xs text-zinc-50">
            <code>{uploadCommand}</code>
          </pre>
        </div>
      </CardContent>
    </Card>
  )
}