"use client";
import { useState } from "react";
import { useRouter } from "next/navigation";
import Link from "next/link";
import { getSocket } from "../lib/socket-client";
import { writeSession } from "../lib/store";

const AVATARS = ["🦄","🦊","🐼","🐸","🐱","🐶","🦁","🐯","🐰","🐻","🐨","🦝"];

export default function CreateRoomPage() {
  const router = useRouter();
  const [nickname, setNickname] = useState("");
  const [avatar, setAvatar] = useState("🦊");
  const [mode, setMode] = useState<"skribbl"|"gartic"|"color">("skribbl");
  const [rounds, setRounds] = useState(4);
  const [drawTime, setDrawTime] = useState(80);
  const [canvasType, setCanvasType] = useState<"blank"|"template">("blank");
  const [templateId, setTemplateId] = useState("mandala");
  const [busy, setBusy] = useState(false);
  const [err, setErr] = useState("");

  const submit = async (e: React.FormEvent) => {
    e.preventDefault();
    setErr("");
    if (!nickname.trim()) { setErr("Pick a nickname"); return; }
    setBusy(true);
    const settings: any = {};
    if (mode === "skribbl") { settings.rounds = rounds; settings.drawTimeSec = drawTime; settings.language = "en"; }
    if (mode === "color") { settings.canvasType = canvasType; settings.templateId = templateId; }

    const socket = getSocket();
    const finish = () => {
      socket.emit("room:create", { nickname: nickname.trim(), avatar, mode, settings }, (resp: any) => {
        if (!resp || !resp.ok) { setErr(resp?.error || "failed"); setBusy(false); return; }
        writeSession(resp.code, { token: resp.sessionToken, nickname: nickname.trim(), avatar, playerId: resp.playerId });
        router.push(`/room/${resp.code}`);
      });
    };
    if (socket.connected) finish();
    else socket.once("connect", finish);
  };

  return (
    <div>
      <header className="flex items-center justify-between max-w-[1280px] mx-auto px-7 py-5">
        <Link href="/" className="flex items-center gap-2.5 font-bold text-2xl no-underline text-dark">
          <span className="logo-mark sm">
            <svg width="22" height="22" viewBox="0 0 24 24" fill="none" stroke="white" strokeWidth="2.5" strokeLinecap="round"><path d="M12 19l7-7 3 3-7 7-3-3z"/><path d="M18 13l-1.5-7.5L2 2l3.5 14.5L13 18l5-5z"/></svg>
          </span>
          DrawTogether
        </Link>
        <Link href="/join" className="btn btn-ghost" style={{padding:"10px 18px",fontSize:14}}>Join Instead</Link>
      </header>

      <main className="max-w-[760px] mx-auto px-6 pb-16">
        <div className="text-center mb-8">
          <h1 className="text-4xl font-bold">Create your room</h1>
          <p className="font-medium mt-2" style={{color:"rgba(45,45,45,0.7)"}}>Pick a mode and customise the rules</p>
        </div>
        <form className="panel flex flex-col gap-6" onSubmit={submit}>
          <div>
            <label className="field-label">Your nickname</label>
            <input data-testid="nickname-input" className="input-text" maxLength={20} value={nickname} onChange={(e)=>setNickname(e.target.value)} placeholder="Doodle Master"/>
          </div>

          <div>
            <label className="field-label">Pick avatar</label>
            <div className="flex flex-wrap gap-2">
              {AVATARS.map(a => (
                <button type="button" key={a} onClick={()=>setAvatar(a)}
                  className="w-12 h-12 rounded-xl border-[3px] grid place-items-center text-2xl shadow-chunky transition-transform hover:-translate-y-0.5"
                  style={{background: avatar===a?"var(--yellow)":"var(--cream)", borderColor: avatar===a?"var(--dark)":"rgba(45,45,45,0.3)"}}
                  data-testid={`avatar-${a}`}
                >{a}</button>
              ))}
            </div>
          </div>

          <div>
            <label className="field-label">Choose game mode</label>
            <div className="grid grid-cols-3 gap-3 max-[640px]:grid-cols-1">
              {([
                {id:"skribbl", label:"Skribbl Race", desc:"Draw & guess", color:"var(--coral)", testid:"mode-skribbl"},
                {id:"gartic",  label:"Gartic Phone", desc:"Pass it on",   color:"var(--mint)",  testid:"mode-gartic"},
                {id:"color",   label:"Color Together", desc:"Chill paint", color:"var(--lavender)", testid:"mode-color"},
              ] as const).map(m => (
                <button type="button" key={m.id} onClick={()=>setMode(m.id as any)} data-testid={m.testid}
                  className="rounded-2xl border-[3px] p-4 text-left flex flex-col gap-1 transition-transform hover:-translate-y-1"
                  style={{
                    background: mode===m.id ? m.color : "var(--cream)",
                    color: mode===m.id ? "white" : "var(--dark)",
                    borderColor: mode===m.id ? "var(--dark)" : "rgba(45,45,45,0.2)",
                    boxShadow: mode===m.id ? "0 5px 0 rgba(0,0,0,0.18)" : "none",
                  }}>
                  <div className="font-bold text-lg">{m.label}</div>
                  <div className="text-sm opacity-90 font-medium">{m.desc}</div>
                </button>
              ))}
            </div>
          </div>

          {mode === "skribbl" && (
            <div className="grid grid-cols-2 gap-4 max-[640px]:grid-cols-1">
              <div>
                <label className="field-label">Rounds</label>
                <div className="flex gap-2">
                  {[2,4,8].map(r => (
                    <button type="button" key={r} onClick={()=>setRounds(r)}
                      data-testid={`rounds-${r}`}
                      className="flex-1 py-3 rounded-xl border-[3px] font-bold"
                      style={{background: rounds===r ? "var(--yellow)" : "var(--cream)", borderColor:"var(--dark)"}}>{r}</button>
                  ))}
                </div>
              </div>
              <div>
                <label className="field-label">Draw time</label>
                <div className="flex gap-2">
                  {[60,80,120].map(t => (
                    <button type="button" key={t} onClick={()=>setDrawTime(t)}
                      data-testid={`time-${t}`}
                      className="flex-1 py-3 rounded-xl border-[3px] font-bold"
                      style={{background: drawTime===t ? "var(--mint)" : "var(--cream)", borderColor:"var(--dark)"}}>{t}s</button>
                  ))}
                </div>
              </div>
            </div>
          )}

          {mode === "color" && (
            <div className="grid grid-cols-2 gap-4 max-[640px]:grid-cols-1">
              <div>
                <label className="field-label">Canvas</label>
                <div className="flex gap-2">
                  <button type="button" onClick={()=>setCanvasType("blank")} className="flex-1 py-3 rounded-xl border-[3px] font-bold" style={{background: canvasType==="blank"?"var(--yellow)":"var(--cream)",borderColor:"var(--dark)"}}>Blank</button>
                  <button type="button" onClick={()=>setCanvasType("template")} className="flex-1 py-3 rounded-xl border-[3px] font-bold" style={{background: canvasType==="template"?"var(--yellow)":"var(--cream)",borderColor:"var(--dark)"}}>Template</button>
                </div>
              </div>
              {canvasType === "template" && (
                <div>
                  <label className="field-label">Template</label>
                  <select className="input-text" value={templateId} onChange={(e)=>setTemplateId(e.target.value)}>
                    {["mandala","cat","tree","fish","butterfly","house","flower","sun"].map(t => <option key={t} value={t}>{t}</option>)}
                  </select>
                </div>
              )}
            </div>
          )}

          {err && <div className="text-coral font-bold text-sm">{err}</div>}

          <button type="submit" disabled={busy} data-testid="create-submit" className="btn btn-primary self-end" style={{padding:"16px 32px", fontSize:18}}>
            {busy ? "Creating..." : "Create Room"}
          </button>
        </form>
      </main>
    </div>
  );
}