import React, { useState } from 'react';
import { Layers, ShieldCheck, UserCheck, Eye, Lock, ArrowRight, CheckCircle } from 'lucide-react';

export default function LoginModal({ isOpen, onLogin }) {
  const [email, setEmail] = useState('admin@dlh.go.id');
  const [password, setPassword] = useState('admin123');
  const [selectedRole, setSelectedRole] = useState('admin');

  if (!isOpen) return null;

  const handleQuickFill = (role) => {
    setSelectedRole(role);
    if (role === 'admin') {
      setEmail('admin@dlh.go.id');
      setPassword('admin123');
    } else {
      setEmail('viewer@dlh.go.id');
      setPassword('viewer123');
    }
  };

  const handleSubmit = (e) => {
    e.preventDefault();
    onLogin({
      email,
      role: selectedRole,
      name: selectedRole === 'admin' ? 'Administrator (DLH Lead)' : 'Guest Inspector (Viewer)',
    });
  };

  return (
    <div
      style={{
        position: 'fixed',
        inset: 0,
        background: 'rgba(8, 9, 13, 0.85)',
        backdropFilter: 'blur(12px)',
        display: 'flex',
        alignItems: 'center',
        justifyContent: 'center',
        zIndex: 1000,
        padding: '20px',
      }}
    >
      <div
        style={{
          width: '100%',
          maxWidth: '480px',
          background: 'var(--color-surface, #0E1016)',
          border: '1px solid var(--color-border-strong, rgba(255,255,255,0.14))',
          borderRadius: 'var(--radius-2xl, 24px)',
          boxShadow: '0 25px 70px rgba(0,0,0,0.5)',
          padding: '32px',
          color: 'var(--color-text-primary, #F5F7FA)',
          display: 'flex',
          flexDirection: 'column',
          gap: '24px',
        }}
      >
        {/* BRAND HEADER */}
        <div style={{ textAlign: 'center' }}>
          <div
            style={{
              width: '52px',
              height: '52px',
              borderRadius: '16px',
              background: 'linear-gradient(135deg, #8B7CFF 0%, #6377FF 100%)',
              display: 'flex',
              alignItems: 'center',
              justifyContent: 'center',
              margin: '0 auto 14px auto',
              boxShadow: '0 8px 24px rgba(139, 124, 255, 0.35)',
            }}
          >
            <Layers size={28} color="#ffffff" />
          </div>
          <h2 style={{ fontSize: '20px', fontWeight: '700', margin: '0 0 6px 0', letterSpacing: '-0.3px' }}>
            DLH Low-Code Studio Access
          </h2>
          <p style={{ fontSize: '13px', color: 'var(--color-text-muted, #707686)', margin: 0 }}>
            Select user role or quick-autofill credentials to sign in
          </p>
        </div>

        {/* QUICK AUTOFILL ROLE SELECTOR BUTTONS */}
        <div style={{ display: 'grid', gridTemplateColumns: '1fr 1fr', gap: '10px' }}>
          <button
            type="button"
            onClick={() => handleQuickFill('admin')}
            style={{
              padding: '12px',
              borderRadius: '12px',
              border: selectedRole === 'admin' ? '2px solid #8B7CFF' : '1px solid var(--color-border-subtle, rgba(255,255,255,0.06))',
              background: selectedRole === 'admin' ? 'rgba(139, 124, 255, 0.12)' : 'var(--color-surface-raised, #12141B)',
              color: selectedRole === 'admin' ? '#ffffff' : 'var(--color-text-muted, #707686)',
              cursor: 'pointer',
              display: 'flex',
              flexDirection: 'column',
              alignItems: 'center',
              gap: '6px',
              transition: 'all 0.2s ease',
            }}
          >
            <UserCheck size={20} color={selectedRole === 'admin' ? '#8B7CFF' : '#707686'} />
            <span style={{ fontSize: '12px', fontWeight: '700' }}>👑 Admin Role</span>
            <span style={{ fontSize: '10px', opacity: 0.8 }}>Full Edit & Deploy</span>
          </button>

          <button
            type="button"
            onClick={() => handleQuickFill('viewer')}
            style={{
              padding: '12px',
              borderRadius: '12px',
              border: selectedRole === 'viewer' ? '2px solid #38bdf8' : '1px solid var(--color-border-subtle, rgba(255,255,255,0.06))',
              background: selectedRole === 'viewer' ? 'rgba(56, 189, 248, 0.12)' : 'var(--color-surface-raised, #12141B)',
              color: selectedRole === 'viewer' ? '#ffffff' : 'var(--color-text-muted, #707686)',
              cursor: 'pointer',
              display: 'flex',
              flexDirection: 'column',
              alignItems: 'center',
              gap: '6px',
              transition: 'all 0.2s ease',
            }}
          >
            <Eye size={20} color={selectedRole === 'viewer' ? '#38bdf8' : '#707686'} />
            <span style={{ fontSize: '12px', fontWeight: '700' }}>👁️ Viewer Role</span>
            <span style={{ fontSize: '10px', opacity: 0.8 }}>Read-Only Canvas</span>
          </button>
        </div>

        {/* LOGIN FORM */}
        <form onSubmit={handleSubmit} style={{ display: 'flex', flexDirection: 'column', gap: '14px' }}>
          <div>
            <label style={{ fontSize: '12px', fontWeight: '600', color: 'var(--color-text-secondary, #A5AAB8)', display: 'block', marginBottom: '6px' }}>
              User Email Address
            </label>
            <input
              type="email"
              value={email}
              onChange={(e) => setEmail(e.target.value)}
              required
              style={{
                width: '100%',
                padding: '10px 14px',
                borderRadius: '8px',
                background: 'var(--color-surface-raised, #12141B)',
                border: '1px solid var(--color-border-default, rgba(255,255,255,0.09))',
                color: 'var(--color-text-primary, #F5F7FA)',
                fontSize: '13px',
                outline: 'none',
              }}
            />
          </div>

          <div>
            <label style={{ fontSize: '12px', fontWeight: '600', color: 'var(--color-text-secondary, #A5AAB8)', display: 'block', marginBottom: '6px' }}>
              Password
            </label>
            <input
              type="password"
              value={password}
              onChange={(e) => setPassword(e.target.value)}
              required
              style={{
                width: '100%',
                padding: '10px 14px',
                borderRadius: '8px',
                background: 'var(--color-surface-raised, #12141B)',
                border: '1px solid var(--color-border-default, rgba(255,255,255,0.09))',
                color: 'var(--color-text-primary, #F5F7FA)',
                fontSize: '13px',
                outline: 'none',
              }}
            />
          </div>

          <button
            type="submit"
            style={{
              width: '100%',
              padding: '12px',
              borderRadius: '10px',
              background: selectedRole === 'admin'
                ? 'linear-gradient(135deg, #8B7CFF 0%, #6377FF 100%)'
                : 'linear-gradient(135deg, #0EA5E9 0%, #0284C7 100%)',
              color: '#ffffff',
              border: 'none',
              fontSize: '14px',
              fontWeight: '700',
              cursor: 'pointer',
              display: 'flex',
              alignItems: 'center',
              justifyContent: 'center',
              gap: '8px',
              marginTop: '6px',
              boxShadow: '0 4px 16px rgba(139, 124, 255, 0.3)',
            }}
          >
            Enter Studio Workspace as {selectedRole.toUpperCase()} <ArrowRight size={16} />
          </button>
        </form>
      </div>
    </div>
  );
}