import React from 'react';
import {
  BellIcon, SunIcon, MoonIcon, Bars3Icon, Cog6ToothIcon,
  MagnifyingGlassIcon, XMarkIcon, CheckIcon,
} from '@heroicons/react/24/outline';
import { useUiStore, HUES, type BrandHue } from '../../stores/uiStore';
import Portal from '../ui/Portal';

export default function Topbar({ onMobileMenuOpen }: { onMobileMenuOpen?: () => void }) {
  const toggleSidebar       = useUiStore((s) => s.toggleSidebar);
  const darkMode            = useUiStore((s) => s.darkMode);
  const toggleDarkMode      = useUiStore((s) => s.toggleDarkMode);
  const density             = useUiStore((s) => s.density);
  const setDensity          = useUiStore((s) => s.setDensity);
  const brandHue            = useUiStore((s) => s.brandHue);
  const setBrandHue         = useUiStore((s) => s.setBrandHue);
  const sidebarOpen         = useUiStore((s) => s.sidebarOpen);
  const settingsPanelOpen   = useUiStore((s) => s.settingsPanelOpen);
  const toggleSettingsPanel = useUiStore((s) => s.toggleSettingsPanel);

  return (
    <>
      <header className="topbar">
        {/* Sidebar toggle */}
        <button
          className="icon-btn"
          onClick={typeof window !== 'undefined' && window.innerWidth < 1024 ? onMobileMenuOpen : toggleSidebar}
          title={sidebarOpen ? 'جمع کردن منو' : 'باز کردن منو'}
        >
          <Bars3Icon style={{ width: 20, height: 20 }} />
        </button>

        {/* Search bar */}
        <div className="topbar-search">
          <MagnifyingGlassIcon style={{ width: 17, height: 17, flexShrink: 0 }} />
          <input placeholder="جستجوی بیمار، پزشک، نوبت..." readOnly />
          <kbd>⌘K</kbd>
        </div>

        <div style={{ flex: 1 }} />

        {/* Dark mode */}
        <button className="icon-btn" onClick={toggleDarkMode} title={darkMode ? 'حالت روشن' : 'حالت تاریک'}>
          {darkMode
            ? <SunIcon  style={{ width: 18, height: 18, color: 'oklch(0.78 0.18 85)' }} />
            : <MoonIcon style={{ width: 18, height: 18 }} />}
        </button>

        {/* Bell */}
        <button className="icon-btn" title="اعلان‌ها" style={{ position: 'relative' }}>
          <BellIcon style={{ width: 18, height: 18 }} />
          <span className="dot" />
        </button>

        {/* Settings */}
        <button className="icon-btn" onClick={toggleSettingsPanel} title="شخصی‌سازی">
          <Cog6ToothIcon style={{ width: 18, height: 18 }} />
        </button>

        {/* Avatar */}
        <div
          className="avatar sm"
          style={{
            background: 'linear-gradient(145deg, oklch(0.62 0.15 256), oklch(0.48 0.16 256))',
            cursor: 'pointer',
            flexShrink: 0,
          }}
        >
          A
        </div>
      </header>

      {/* Settings Panel */}
      {settingsPanelOpen && (
        <Portal>
        <div
          className="overlay"
          style={{ placeItems: 'stretch', justifyContent: 'flex-start' }}
          onClick={toggleSettingsPanel}
        >
          <div
            className="modal settings-panel"
            onClick={(e) => e.stopPropagation()}
          >
            <div className="modal-head">
              <h2>شخصی‌سازی</h2>
              <button className="mini-btn" onClick={toggleSettingsPanel}>
                <XMarkIcon style={{ width: 18, height: 18 }} />
              </button>
            </div>
            <div className="modal-body" style={{ display: 'flex', flexDirection: 'column', gap: 0 }}>

              {/* Theme */}
              <div className="form-row">
                <label>حالت نمایش</label>
                <div className="seg" style={{ width: '100%' }}>
                  <button
                    className={!darkMode ? 'on' : ''}
                    style={{ flex: 1 }}
                    onClick={() => { if (darkMode) toggleDarkMode(); }}
                  >
                    <SunIcon style={{ width: 14, height: 14, display: 'inline', verticalAlign: 'middle', marginInlineEnd: 5 }} />
                    روشن
                  </button>
                  <button
                    className={darkMode ? 'on' : ''}
                    style={{ flex: 1 }}
                    onClick={() => { if (!darkMode) toggleDarkMode(); }}
                  >
                    <MoonIcon style={{ width: 14, height: 14, display: 'inline', verticalAlign: 'middle', marginInlineEnd: 5 }} />
                    تیره
                  </button>
                </div>
              </div>

              {/* Brand color */}
              <div className="form-row">
                <label>رنگ اصلی</label>
                <div style={{ display: 'flex', gap: 8, flexWrap: 'wrap' }}>
                  {HUES.map((hue) => (
                    <button
                      key={hue.h}
                      onClick={() => setBrandHue(hue as BrandHue)}
                      title={hue.name}
                      style={{
                        width: 40, height: 40, borderRadius: 10,
                        background: `oklch(0.55 ${hue.c} ${hue.h})`,
                        border: brandHue.h === hue.h ? '3px solid var(--text)' : '3px solid transparent',
                        display: 'grid', placeItems: 'center', color: '#fff', cursor: 'pointer',
                      }}
                    >
                      {brandHue.h === hue.h && <CheckIcon style={{ width: 16, height: 16 }} />}
                    </button>
                  ))}
                </div>
              </div>

              {/* Density */}
              <div className="form-row">
                <label>تراکم اطلاعات</label>
                <div className="seg" style={{ width: '100%' }}>
                  <button
                    className={density === 'comfortable' ? 'on' : ''}
                    style={{ flex: 1 }}
                    onClick={() => setDensity('comfortable')}
                  >جادار</button>
                  <button
                    className={density === 'compact' ? 'on' : ''}
                    style={{ flex: 1 }}
                    onClick={() => setDensity('compact')}
                  >فشرده</button>
                </div>
              </div>

              {/* Sidebar */}
              <div className="form-row">
                <label>سایدبار</label>
                <div className="seg" style={{ width: '100%' }}>
                  <button
                    className={sidebarOpen ? 'on' : ''}
                    style={{ flex: 1 }}
                    onClick={() => { if (!sidebarOpen) toggleSidebar(); }}
                  >کامل</button>
                  <button
                    className={!sidebarOpen ? 'on' : ''}
                    style={{ flex: 1 }}
                    onClick={() => { if (sidebarOpen) toggleSidebar(); }}
                  >جمع‌شده</button>
                </div>
              </div>

              <div style={{
                padding: 12, background: 'var(--surface-2)', borderRadius: 'var(--r)',
                fontSize: 12, color: 'var(--text-2)', lineHeight: 1.9, marginTop: 8,
              }}>
                تنظیمات شما به‌صورت خودکار ذخیره می‌شود.
              </div>
            </div>
          </div>
        </div>
        </Portal>
      )}
    </>
  );
}
