"use client";

import { useState } from "react";
import Link from "next/link";
import { Loader2, Mail, Sparkles, User, Lock } from "lucide-react";
import { cn } from "@/lib/utils";

export default function SignUpPage() {
  const [name, setName] = useState("");
  const [email, setEmail] = useState("");
  const [password, setPassword] = useState("");
  const [loading, setLoading] = useState(false);
  const [message, setMessage] = useState<string | null>(null);

  async function onSubmit(e: React.FormEvent) {
    e.preventDefault();
    setMessage(null);
    setLoading(true);
    try {
      await new Promise((r) => setTimeout(r, 600));
      setMessage("Thanks — account creation will connect to your API soon. For now, use dev sign-in.");
    } finally {
      setLoading(false);
    }
  }

  return (
    <div
      className={cn(
        "rounded-2xl border border-border/60 bg-card/80 p-8 shadow-xl shadow-[hsl(var(--teal)/0.06)] backdrop-blur-md",
        "ring-1 ring-[hsl(var(--teal)/0.15)]",
      )}
    >
      <div className="mb-8 text-center">
        <div className="mx-auto mb-4 flex h-12 w-12 items-center justify-center rounded-xl bg-gradient-to-br from-[hsl(var(--teal))] to-[hsl(var(--primary))] text-primary-foreground shadow-lg">
          <Sparkles className="h-6 w-6" aria-hidden />
        </div>
        <h1 className="text-2xl font-semibold tracking-tight text-foreground">Join Tasks</h1>
        <p className="mt-2 text-sm text-muted-foreground">Create your workspace — registration is a preview for now.</p>
      </div>

      <form onSubmit={onSubmit} className="space-y-5">
        {message ? (
          <div
            role="status"
            className="rounded-lg border border-[hsl(var(--teal)/0.35)] bg-[hsl(var(--teal)/0.08)] px-3 py-2 text-sm text-foreground"
          >
            {message}
          </div>
        ) : null}

        <div className="space-y-2">
          <label htmlFor="name" className="text-sm font-medium text-foreground">
            Name
          </label>
          <div className="relative">
            <User className="pointer-events-none absolute left-3 top-1/2 h-4 w-4 -translate-y-1/2 text-muted-foreground" />
            <input
              id="name"
              name="name"
              type="text"
              autoComplete="name"
              required
              value={name}
              onChange={(e) => setName(e.target.value)}
              className={cn(
                "w-full rounded-lg border border-input bg-background py-2.5 pl-10 pr-3 text-sm outline-none transition",
                "placeholder:text-muted-foreground focus:border-[hsl(var(--teal))] focus:ring-2 focus:ring-[hsl(var(--teal)/0.25)]",
              )}
              placeholder="Alex Doe"
            />
          </div>
        </div>

        <div className="space-y-2">
          <label htmlFor="email" className="text-sm font-medium text-foreground">
            Email
          </label>
          <div className="relative">
            <Mail className="pointer-events-none absolute left-3 top-1/2 h-4 w-4 -translate-y-1/2 text-muted-foreground" />
            <input
              id="email"
              name="email"
              type="email"
              autoComplete="email"
              required
              value={email}
              onChange={(e) => setEmail(e.target.value)}
              className={cn(
                "w-full rounded-lg border border-input bg-background py-2.5 pl-10 pr-3 text-sm outline-none transition",
                "placeholder:text-muted-foreground focus:border-[hsl(var(--teal))] focus:ring-2 focus:ring-[hsl(var(--teal)/0.25)]",
              )}
              placeholder="you@example.com"
            />
          </div>
        </div>

        <div className="space-y-2">
          <label htmlFor="password" className="text-sm font-medium text-foreground">
            Password
          </label>
          <div className="relative">
            <Lock className="pointer-events-none absolute left-3 top-1/2 h-4 w-4 -translate-y-1/2 text-muted-foreground" />
            <input
              id="password"
              name="password"
              type="password"
              autoComplete="new-password"
              required
              minLength={8}
              value={password}
              onChange={(e) => setPassword(e.target.value)}
              className={cn(
                "w-full rounded-lg border border-input bg-background py-2.5 pl-10 pr-3 text-sm outline-none transition",
                "placeholder:text-muted-foreground focus:border-[hsl(var(--teal))] focus:ring-2 focus:ring-[hsl(var(--teal)/0.25)]",
              )}
              placeholder="At least 8 characters"
            />
          </div>
        </div>

        <button
          type="submit"
          disabled={loading}
          className={cn(
            "flex w-full items-center justify-center gap-2 rounded-lg py-2.5 text-sm font-medium text-primary-foreground transition",
            "bg-gradient-to-r from-[hsl(var(--primary))] to-[hsl(var(--teal))] hover:opacity-[0.96]",
            "focus-visible:outline focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-[hsl(var(--primary))]",
            "disabled:pointer-events-none disabled:opacity-60",
          )}
        >
          {loading ? <Loader2 className="h-4 w-4 animate-spin" /> : null}
          Create account
        </button>
      </form>

      <p className="mt-8 text-center text-sm text-muted-foreground">
        Already have an account?{" "}
        <Link
          href="/sign-in"
          className="font-medium text-[hsl(var(--primary))] underline-offset-4 hover:underline"
        >
          Sign in
        </Link>
      </p>
    </div>
  );
}