'use client'

import { useRef } from 'react'
import { useTheme } from '@/lib/ThemeContext'
import { useLanguage } from '@/lib/LanguageContext'
import { useWorksheet } from '@/lib/worksheet-editor/WorksheetContext'
import type { EditorTool } from '@/app/worksheet-editor/types'

interface EditorToolbarProps {
  onOpenAIGenerator: () => void
  onOpenDocumentImporter: () => void
  onOpenCleanupPanel?: () => void
  onOpenOCRImport?: () => void
  className?: string
}

interface ToolButtonProps {
  tool: EditorTool
  icon: React.ReactNode
  label: string
  isActive: boolean
  onClick: () => void
  isDark: boolean
}

function ToolButton({ tool, icon, label, isActive, onClick, isDark }: ToolButtonProps) {
  return (
    <button
      onClick={onClick}
      title={label}
      className={`w-12 h-12 flex items-center justify-center rounded-xl transition-all ${
        isActive
          ? isDark
            ? 'bg-purple-500/30 text-purple-300 shadow-lg'
            : 'bg-purple-100 text-purple-700 shadow-lg'
          : isDark
            ? 'text-white/70 hover:bg-white/10 hover:text-white'
            : 'text-slate-600 hover:bg-slate-100 hover:text-slate-900'
      }`}
    >
      {icon}
    </button>
  )
}

export function EditorToolbar({ onOpenAIGenerator, onOpenDocumentImporter, onOpenCleanupPanel, onOpenOCRImport, className = '' }: EditorToolbarProps) {
  const { isDark } = useTheme()
  const { t } = useLanguage()
  const fileInputRef = useRef<HTMLInputElement>(null)

  const {
    activeTool,
    setActiveTool,
    canvas,
    canUndo,
    canRedo,
    undo,
    redo,
  } = useWorksheet()

  const handleToolClick = (tool: EditorTool) => {
    setActiveTool(tool)
  }

  const handleImageUpload = () => {
    fileInputRef.current?.click()
  }

  const handleFileChange = (e: React.ChangeEvent<HTMLInputElement>) => {
    const file = e.target.files?.[0]
    if (!file || !canvas) return

    const reader = new FileReader()
    reader.onload = (event) => {
      const url = event.target?.result as string
      if ((canvas as any).addImage) {
        (canvas as any).addImage(url)
      }
    }
    reader.readAsDataURL(file)

    // Reset input
    e.target.value = ''
  }

  // Glassmorphism styles
  const toolbarStyle = isDark
    ? 'backdrop-blur-xl bg-white/10 border border-white/20'
    : 'backdrop-blur-xl bg-white/70 border border-black/10 shadow-xl'

  const dividerStyle = isDark
    ? 'border-white/20'
    : 'border-slate-200'

  return (
    <div className={`flex flex-col gap-2 p-2 rounded-2xl ${toolbarStyle} ${className}`}>
      {/* Selection Tool */}
      <ToolButton
        tool="select"
        isActive={activeTool === 'select'}
        onClick={() => handleToolClick('select')}
        isDark={isDark}
        label="Auswählen"
        icon={
          <svg className="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24">
            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M15 15l-2 5L9 9l11 4-5 2zm0 0l5 5M7.188 2.239l.777 2.897M5.136 7.965l-2.898-.777M13.95 4.05l-2.122 2.122m-5.657 5.656l-2.12 2.122" />
          </svg>
        }
      />

      <div className={`border-t ${dividerStyle}`} />

      {/* Text Tool */}
      <ToolButton
        tool="text"
        isActive={activeTool === 'text'}
        onClick={() => handleToolClick('text')}
        isDark={isDark}
        label="Text"
        icon={
          <svg className="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24">
            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M11 5H6a2 2 0 00-2 2v11a2 2 0 002 2h11a2 2 0 002-2v-5m-1.414-9.414a2 2 0 112.828 2.828L11.828 15H9v-2.828l8.586-8.586z" />
          </svg>
        }
      />

      <div className={`border-t ${dividerStyle}`} />

      {/* Shape Tools */}
      <ToolButton
        tool="rectangle"
        isActive={activeTool === 'rectangle'}
        onClick={() => handleToolClick('rectangle')}
        isDark={isDark}
        label="Rechteck"
        icon={
          <svg className="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24">
            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M4 6h16M4 18h16M4 6v12M20 6v12" />
          </svg>
        }
      />

      <ToolButton
        tool="circle"
        isActive={activeTool === 'circle'}
        onClick={() => handleToolClick('circle')}
        isDark={isDark}
        label="Kreis"
        icon={
          <svg className="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24">
            <circle cx="12" cy="12" r="9" strokeWidth={1.5} />
          </svg>
        }
      />

      <ToolButton
        tool="line"
        isActive={activeTool === 'line'}
        onClick={() => handleToolClick('line')}
        isDark={isDark}
        label="Linie"
        icon={
          <svg className="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24">
            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M4 20L20 4" />
          </svg>
        }
      />

      <ToolButton
        tool="arrow"
        isActive={activeTool === 'arrow'}
        onClick={() => handleToolClick('arrow')}
        isDark={isDark}
        label="Pfeil"
        icon={
          <svg className="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24">
            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M17 8l4 4m0 0l-4 4m4-4H3" />
          </svg>
        }
      />

      <div className={`border-t ${dividerStyle}`} />

      {/* Image Tools */}
      <ToolButton
        tool="image"
        isActive={activeTool === 'image'}
        onClick={handleImageUpload}
        isDark={isDark}
        label="Bild hochladen"
        icon={
          <svg className="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24">
            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M4 16l4.586-4.586a2 2 0 012.828 0L16 16m-2-2l1.586-1.586a2 2 0 012.828 0L20 14m-6-6h.01M6 20h12a2 2 0 002-2V6a2 2 0 00-2-2H6a2 2 0 00-2 2v12a2 2 0 002 2z" />
          </svg>
        }
      />

      <input
        ref={fileInputRef}
        type="file"
        accept="image/*"
        onChange={handleFileChange}
        className="hidden"
      />

      {/* AI Image Generator */}
      <ToolButton
        tool="ai-image"
        isActive={activeTool === 'ai-image'}
        onClick={onOpenAIGenerator}
        isDark={isDark}
        label="KI-Bild generieren"
        icon={
          <svg className="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24">
            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M5 3v4M3 5h4M6 17v4m-2-2h4m5-16l2.286 6.857L21 12l-5.714 2.143L13 21l-2.286-6.857L5 12l5.714-2.143L13 3z" />
          </svg>
        }
      />

      <div className={`border-t ${dividerStyle}`} />

      {/* Document Import */}
      <button
        onClick={onOpenDocumentImporter}
        title="Dokument importieren"
        className={`w-12 h-12 flex items-center justify-center rounded-xl transition-all ${
          isDark
            ? 'text-blue-300 hover:bg-blue-500/20 hover:text-blue-200'
            : 'text-blue-600 hover:bg-blue-100 hover:text-blue-700'
        }`}
      >
        <svg className="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24">
          <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M9 12h6m-6 4h6m2 5H7a2 2 0 01-2-2V5a2 2 0 012-2h5.586a1 1 0 01.707.293l5.414 5.414a1 1 0 01.293.707V19a2 2 0 01-2 2z" />
          <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M12 3v6a1 1 0 001 1h6" />
        </svg>
      </button>

      {/* Cleanup Panel - Handwriting Removal */}
      {onOpenCleanupPanel && (
        <button
          onClick={onOpenCleanupPanel}
          title="Arbeitsblatt bereinigen (Handschrift entfernen)"
          className={`w-12 h-12 flex items-center justify-center rounded-xl transition-all ${
            isDark
              ? 'text-orange-300 hover:bg-orange-500/20 hover:text-orange-200'
              : 'text-orange-600 hover:bg-orange-100 hover:text-orange-700'
          }`}
        >
          <svg className="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24">
            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M19.428 15.428a2 2 0 00-1.022-.547l-2.387-.477a6 6 0 00-3.86.517l-.318.158a6 6 0 01-3.86.517L6.05 15.21a2 2 0 00-1.806.547M8 4h8l-1 1v5.172a2 2 0 00.586 1.414l5 5c1.26 1.26.367 3.414-1.415 3.414H4.828c-1.782 0-2.674-2.154-1.414-3.414l5-5A2 2 0 009 10.172V5L8 4z" />
          </svg>
        </button>
      )}

      {/* OCR Import */}
      {onOpenOCRImport && (
        <button
          onClick={onOpenOCRImport}
          title="OCR Daten importieren (aus Grid Analyse)"
          className={`w-12 h-12 flex items-center justify-center rounded-xl transition-all ${
            isDark
              ? 'text-green-300 hover:bg-green-500/20 hover:text-green-200'
              : 'text-green-600 hover:bg-green-100 hover:text-green-700'
          }`}
        >
          <svg className="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24">
            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M7 16a4 4 0 01-.88-7.903A5 5 0 1115.9 6L16 6a5 5 0 011 9.9M15 13l-3-3m0 0l-3 3m3-3v12" />
          </svg>
        </button>
      )}

      <div className={`border-t ${dividerStyle}`} />

      {/* Table Tool */}
      <ToolButton
        tool="table"
        isActive={activeTool === 'table'}
        onClick={() => handleToolClick('table')}
        isDark={isDark}
        label="Tabelle"
        icon={
          <svg className="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24">
            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M3 10h18M3 14h18m-9-4v8m-7 0h14a2 2 0 002-2V8a2 2 0 00-2-2H5a2 2 0 00-2 2v8a2 2 0 002 2z" />
          </svg>
        }
      />

      <div className={`border-t ${dividerStyle} mt-auto`} />

      {/* Undo/Redo */}
      <button
        onClick={undo}
        disabled={!canUndo}
        title="Rückgängig (Ctrl+Z)"
        className={`w-12 h-12 flex items-center justify-center rounded-xl transition-all ${
          canUndo
            ? isDark
              ? 'text-white/70 hover:bg-white/10 hover:text-white'
              : 'text-slate-600 hover:bg-slate-100 hover:text-slate-900'
            : isDark
              ? 'text-white/30 cursor-not-allowed'
              : 'text-slate-300 cursor-not-allowed'
        }`}
      >
        <svg className="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24">
          <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M3 10h10a8 8 0 018 8v2M3 10l6 6m-6-6l6-6" />
        </svg>
      </button>

      <button
        onClick={redo}
        disabled={!canRedo}
        title="Wiederholen (Ctrl+Y)"
        className={`w-12 h-12 flex items-center justify-center rounded-xl transition-all ${
          canRedo
            ? isDark
              ? 'text-white/70 hover:bg-white/10 hover:text-white'
              : 'text-slate-600 hover:bg-slate-100 hover:text-slate-900'
            : isDark
              ? 'text-white/30 cursor-not-allowed'
              : 'text-slate-300 cursor-not-allowed'
        }`}
      >
        <svg className="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24">
          <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M21 10h-10a8 8 0 00-8 8v2M21 10l-6 6m6-6l-6-6" />
        </svg>
      </button>
    </div>
  )
}