import { ChevronRight, LogOut, User } from "lucide-react";
import { useAuthStore } from "../../stores/authStore";
import { useNavigate } from "react-router-dom";
import {
  Avatar,
  AvatarFallback,
  AvatarImage,
} from "../../components/ui/avatar";

const DOTS = [
  { size: 10, color: "#f97316", top: "6%", left: "4%", delay: "0s" },
  { size: 7, color: "#a855f7", top: "28%", left: "2%", delay: "1.2s" },
  { size: 9, color: "#22c55e", top: "62%", left: "3%", delay: "0.6s" },
  { size: 12, color: "#3b82f6", top: "10%", right: "4%", delay: "1.8s" },
  { size: 7, color: "#f43f5e", top: "48%", right: "2%", delay: "0.9s" },
  { size: 9, color: "#eab308", top: "76%", right: "5%", delay: "0.4s" },
];

const STYLES = `
  @import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;700;800;900&family=Nunito+Sans:wght@400;600;700&display=swap');

  :root { --content-max: 1100px; }

  .pf-screen {
    min-height: 100vh;
    background: #fffbf4;
    font-family: 'Nunito', sans-serif;
    position: relative;
    overflow-x: hidden;
  }

  .pf-blob { position: fixed; pointer-events: none; z-index: 0; filter: blur(48px); opacity: 0.35; }
  .pf-blob-1 { width:240px;height:240px;background:#fde68a;top:-80px;left:-80px;border-radius:60% 40% 70% 30%/50% 60% 40% 50%;animation:pfWobble1 14s ease-in-out infinite; }
  .pf-blob-2 { width:190px;height:190px;background:#a5f3c0;bottom:-50px;left:6%;border-radius:40% 60% 30% 70%/60% 40% 60% 40%;animation:pfWobble2 16s ease-in-out infinite; }
  .pf-blob-3 { width:210px;height:210px;background:#fbcfe8;top:15%;right:-60px;border-radius:70% 30% 50% 50%/40% 60% 40% 60%;animation:pfWobble1 18s ease-in-out infinite reverse; }
  .pf-blob-4 { width:150px;height:150px;background:#bfdbfe;bottom:12%;right:2%;border-radius:50% 50% 30% 70%/60% 40% 60% 40%;animation:pfWobble2 12s ease-in-out infinite; }

  @keyframes pfWobble1 {
    0%,100%{border-radius:60% 40% 70% 30%/50% 60% 40% 50%;transform:translate(0,0) rotate(0deg);}
    50%{border-radius:40% 60% 30% 70%/60% 40% 60% 40%;transform:translate(12px,16px) rotate(8deg);}
  }
  @keyframes pfWobble2 {
    0%,100%{border-radius:40% 60% 30% 70%/60% 40% 60% 40%;transform:translate(0,0) rotate(0deg);}
    50%{border-radius:60% 40% 70% 30%/40% 60% 40% 60%;transform:translate(-10px,12px) rotate(-6deg);}
  }

  .pf-dot { position:fixed;border-radius:50%;pointer-events:none;z-index:0;opacity:0.3;animation:pfFloat 7s ease-in-out infinite; }
  @keyframes pfFloat {
    0%,100%{transform:translateY(0) rotate(0deg);}
    50%{transform:translateY(-12px) rotate(180deg);}
  }

  .pf-inner {
    position: relative; z-index: 1;
    max-width: 520px; margin: 0 auto;
    padding: 2rem 1.25rem 4rem;
    display: flex; flex-direction: column; gap: 1.5rem;
  }

  /* Desktop / web layout: wider container and two-column grid */
  @media (min-width: 900px) {
    .pf-inner {
      max-width: var(--content-max);
      padding: 2.5rem 2.5rem 4rem;
      display: grid;
      grid-template-columns: 1fr 420px;
      grid-template-rows: auto;
      gap: 1.5rem 2rem;
      align-items: start;
    }

    /* Hero spans full width */
    .pf-hero { grid-column: 1 / -1; display: flex; align-items: center; gap: 1.5rem; }

    /* Keep page title centered across the full layout */
    .pf-page-title { grid-column: 1 / -1; }

    /* Place first section (Account) in left column */
    .pf-inner > section:nth-of-type(1) { grid-column: 1 / 2; }

    /* Right column wrapper (Legal + Support) */
    .pf-right-col { grid-column: 2 / 3; display: flex; flex-direction: column; gap: 1.5rem; }

    /* Make signout button centered and constrained width */
    .pf-signout-btn { grid-column: 1 / -1; justify-self: center; width: 420px; }
  }

  @keyframes pfPopIn {
    from { opacity:0; transform: scale(0.92) translateY(12px); }
    to   { opacity:1; transform: scale(1) translateY(0); }
  }
  .pf-anim   { animation: pfPopIn 0.4s cubic-bezier(0.34,1.56,0.64,1) both; }
  .pf-anim-1 { animation-delay: 0.05s; }
  .pf-anim-2 { animation-delay: 0.1s; }
  .pf-anim-3 { animation-delay: 0.15s; }
  .pf-anim-4 { animation-delay: 0.2s; }
  .pf-anim-5 { animation-delay: 0.25s; }

  /* Page title */
  .pf-page-title {
    font-size: 1.8rem; font-weight: 900; color: #1e1b4b;
    letter-spacing: -0.02em; text-align: center;
    animation: pfPopIn 0.4s cubic-bezier(0.34,1.56,0.64,1) both;
  }

  /* Avatar hero card */
  .pf-hero {
    background: white; border: 2.5px solid #f3f4f6; border-radius: 24px;
    padding: 1.5rem; box-shadow: 0 6px 20px rgba(0,0,0,0.05);
    display: flex; align-items: center; gap: 1rem;
  }
  .pf-avatar-wrap {
    width: 64px; height: 64px; flex-shrink: 0;
    border-radius: 50%;
    background: linear-gradient(135deg, #a855f7, #7c3aed);
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 4px 0 #5b21b655;
  }
  .pf-user-name {
    font-size: 1.15rem; font-weight: 900; color: #1e1b4b; line-height: 1.2;
  }
  .pf-user-email {
    font-family: 'Nunito Sans', sans-serif;
    font-size: 0.8rem; font-weight: 600; color: #9ca3af; margin-top: 0.2rem;
  }
  .pf-user-badge {
    display: inline-flex; align-items: center; gap: 0.3rem;
    background: #f3e8ff; border: 2px solid #e9d5ff; border-radius: 100px;
    padding: 0.2rem 0.6rem; margin-top: 0.35rem;
    font-size: 0.62rem; font-weight: 800; letter-spacing: 0.1em;
    text-transform: uppercase; color: #9333ea;
    width: fit-content;
  }

  /* Section */
  .pf-section { display: flex; flex-direction: column; gap: 0.5rem; }
  .pf-section-label {
    font-size: 0.62rem; font-weight: 800; letter-spacing: 0.18em;
    text-transform: uppercase; color: #9ca3af; padding: 0 0.25rem;
  }

  /* Settings group card */
  .pf-group {
    background: white; border: 2.5px solid #f3f4f6; border-radius: 20px;
    overflow: hidden; box-shadow: 0 4px 14px rgba(0,0,0,0.04);
  }
  .pf-row {
    display: flex; align-items: center; justify-content: space-between;
    padding: 0.9rem 1.1rem; gap: 0.75rem; cursor: not-allowed;
    background: white; border: none; width: 100%; text-align: left;
    transition: background 0.15s ease;
    border-bottom: 2px solid #f9fafb;
    opacity: 0.5;
  }
  .pf-row:last-child { border-bottom: none; }
  .pf-row:hover   { background: #fafaf9; }
  .pf-row:active  { background: #f5f3ef; }

  .pf-row-left { display: flex; align-items: center; gap: 0.75rem; }
  .pf-row-icon {
    width: 34px; height: 34px; border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
  }
  .pf-row-label {
    font-size: 0.9rem; font-weight: 800; color: #1e1b4b;
  }
  .pf-row-sub {
    font-family: 'Nunito Sans', sans-serif;
    font-size: 0.72rem; font-weight: 600; color: #9ca3af;
  }
  .pf-chevron { color: #d1d5db; flex-shrink: 0; }

  /* Sign out button */
  .pf-signout-btn {
    width: 100%;
    background: #f97316; color: white; border: none;
    border-radius: 100px; padding: 1rem;
    font-family: 'Nunito', sans-serif; font-size: 0.95rem; font-weight: 800;
    cursor: pointer; display: flex; align-items: center; justify-content: center; gap: 0.5rem;
    box-shadow: 0 6px 0 #c2560e, 0 8px 20px rgba(249,115,22,0.25);
    transition: transform 0.1s ease, box-shadow 0.1s ease;
  }
  .pf-signout-btn:hover  { transform:translateY(-2px); box-shadow:0 8px 0 #c2560e,0 12px 24px rgba(249,115,22,0.3); }
  .pf-signout-btn:active { transform:translateY(3px);  box-shadow:0 3px 0 #c2560e; }
`;

type RowDef = {
  icon: string;
  iconBg: string;
  label: string;
  sub?: string;
  onClick?: () => void;
};

const SettingsGroup = ({ rows }: { rows: RowDef[] }) => (
  <div className="pf-group">
    {rows.map((row, i) => (
      <button key={i} className="pf-row" onClick={row.onClick}>
        <div className="pf-row-left">
          <div className="pf-row-icon" style={{ background: row.iconBg }}>
            <span style={{ fontSize: "1rem" }}>{row.icon}</span>
          </div>
          <div>
            <p className="pf-row-label">{row.label}</p>
            {row.sub && <p className="pf-row-sub">{row.sub}</p>}
          </div>
        </div>
        <ChevronRight size={17} className="pf-chevron" />
      </button>
    ))}
  </div>
);

export const Profile = () => {
  const user = useAuthStore((state) => state.user);
  const navigate = useNavigate();

  const handleLogout = () => {
    useAuthStore.getState().logout();
    navigate("/login");
  };

  const ACCOUNT_ROWS: RowDef[] = [
    {
      icon: "👤",
      iconBg: "#f3e8ff",
      label: "Account details",
      sub: "Name, email, password",
    },
    {
      icon: "🎟️",
      iconBg: "#fff7ed",
      label: "Redeem a code",
      sub: "Enter your access code",
    },
    {
      icon: "💳",
      iconBg: "#f0fdf4",
      label: "Manage subscription",
      sub: "Plans & billing",
    },
    {
      icon: "⚙️",
      iconBg: "#f8fafc",
      label: "Preferences",
      sub: "Notifications & display",
    },
  ];

  const LEGAL_ROWS: RowDef[] = [
    { icon: "📄", iconBg: "#eff6ff", label: "Terms of Use" },
    { icon: "🔒", iconBg: "#fff1f2", label: "Privacy Policy" },
  ];

  const SUPPORT_ROWS: RowDef[] = [
    {
      icon: "💬",
      iconBg: "#f0fdf4",
      label: "Contact Us",
      sub: "We usually respond within 24h",
    },
  ];

  return (
    <div className="pf-screen pb-12">
      <style>{STYLES}</style>

      {/* Blobs */}
      <div className="pf-blob pf-blob-1" />
      <div className="pf-blob pf-blob-2" />
      <div className="pf-blob pf-blob-3" />
      <div className="pf-blob pf-blob-4" />

      {/* Dots */}
      {DOTS.map((d, i) => (
        <div
          key={i}
          className="pf-dot"
          style={
            {
              width: d.size,
              height: d.size,
              background: d.color,
              top: d.top,
              left: d.left,
              right: d.right,
              animationDelay: d.delay,
              animationDuration: `${5 + i * 0.5}s`,
            } as React.CSSProperties
          }
        />
      ))}

      <div className="pf-inner">
        <h1 className="pf-page-title">Profile</h1>

        {/* Hero card */}
        <div className="pf-hero pf-anim pf-anim-1">
          <Avatar style={{ width: 64, height: 64, flexShrink: 0 }}>
            <AvatarImage src={user?.avatar_url} />
            <AvatarFallback
              style={{
                width: 64,
                height: 64,
                borderRadius: "50%",
                background: "linear-gradient(135deg,#a855f7,#7c3aed)",
                color: "white",
                fontWeight: 900,
                fontSize: "1.5rem",
                display: "flex",
                alignItems: "center",
                justifyContent: "center",
                boxShadow: "0 4px 0 #5b21b655",
              }}
            >
              {user?.name?.slice(0, 1).toUpperCase()}
            </AvatarFallback>
          </Avatar>
          <div>
            <p className="pf-user-name">{user?.name}</p>
            <p className="pf-user-email">{user?.email}</p>
            <div className="pf-user-badge">
              <User size={9} />
              {user?.role === "STUDENT"
                ? "Student"
                : user?.role === "ADMIN"
                  ? "Admin"
                  : "Teacher"}
            </div>
          </div>
        </div>

        {/* Account */}
        <section className="pf-section pf-anim pf-anim-2">
          <p className="pf-section-label">Account</p>
          <SettingsGroup rows={ACCOUNT_ROWS} />
        </section>

        {/* Right column: Legal + Support (stacked) */}
        <div className="pf-right-col pf-anim pf-anim-3">
          <section className="pf-section">
            <p className="pf-section-label">Legal</p>
            <SettingsGroup rows={LEGAL_ROWS} />
          </section>

          <section className="pf-section">
            <p className="pf-section-label">Support</p>
            <SettingsGroup rows={SUPPORT_ROWS} />
          </section>
        </div>

        {/* Sign out */}
        <button
          className="pf-signout-btn pf-anim pf-anim-5"
          onClick={handleLogout}
        >
          <LogOut size={18} /> Sign Out
        </button>
      </div>
    </div>
  );
};
