import { useState } from 'react';

const PromptEditor = ({ customPrompt, setCustomPrompt, isMac, isMobile }) => {
  const [isEditingPrompt, setIsEditingPrompt] = useState(false);
  const [isCollapsed, setIsCollapsed] = useState(isMobile); // Collapsed by default on mobile
  const [tempPrompt, setTempPrompt] = useState("");

  return (
    <div className={`w-full max-w-4xl ${isMobile ? 'mt-2 mb-4' : 'mb-4'}`}>
      <div className="flex justify-between items-center mb-1">
        <label 
          htmlFor="system-prompt" 
          className={`block ${isMobile ? 'text-xs' : 'text-sm'} font-medium text-gray-700 cursor-pointer`}
          onClick={() => isMobile && setIsCollapsed(!isCollapsed)}
        >
          System Prompt {isMobile && (isCollapsed ? '▼' : '▲')}
        </label>
        {!isEditingPrompt && !isCollapsed ? (
          <button
            onClick={() => {
              setTempPrompt(customPrompt);
              setIsEditingPrompt(true);
            }}
            className={`${isMobile ? 'text-xs' : 'text-sm'} text-blue-600 hover:text-blue-800 flex items-center`}
          >
            <svg xmlns="http://www.w3.org/2000/svg" className={`${isMobile ? 'h-3 w-3' : 'h-4 w-4'} mr-1`} fill="none" viewBox="0 0 24 24" stroke="currentColor">
              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M15.232 5.232l3.536 3.536m-2.036-5.036a2.5 2.5 0 113.536 3.536L6.5 21.036H3v-3.572L16.732 3.732z" />
            </svg>
            Edit
          </button>
        ) : null}
      </div>
      
      {!isCollapsed && (
        <>
          {isEditingPrompt ? (
            <div>
              <textarea
                id="system-prompt"
                value={tempPrompt}
                onChange={(e) => setTempPrompt(e.target.value)}
                onKeyDown={(e) => {
                  // Save on Ctrl+Enter or Cmd+Enter
                  if ((e.ctrlKey || e.metaKey) && e.key === 'Enter') {
                    e.preventDefault();
                    setCustomPrompt(tempPrompt);
                    setIsEditingPrompt(false);
                  }
                }}
                className={`w-full p-3 border border-gray-300 rounded-lg shadow-sm focus:ring-blue-500 focus:border-blue-500 ${isMobile ? 'text-xs' : 'text-sm'}`}
                rows={isMobile ? 3 : 4}
                placeholder="Enter your custom prompt for Gemini..."
              />
              <div className="flex justify-end mt-2 space-x-2">
                <span className={`${isMobile ? 'text-xxs' : 'text-xs'} text-gray-500 self-center mr-auto`}>
                  Tip: Press {isMac ? '⌘' : 'Ctrl'}+Enter to save
                </span>
                <button
                  onClick={() => setIsEditingPrompt(false)}
                  className={`px-3 py-1 ${isMobile ? 'text-xs' : 'text-sm'} text-gray-600 border border-gray-300 rounded-md hover:bg-gray-100`}
                >
                  Cancel
                </button>
                <button
                  onClick={() => {
                    setCustomPrompt(tempPrompt);
                    setIsEditingPrompt(false);
                  }}
                  className={`px-3 py-1 ${isMobile ? 'text-xs' : 'text-sm'} text-white bg-blue-600 rounded-md hover:bg-blue-700`}
                >
                  Save
                </button>
              </div>
            </div>
          ) : (
            <div className={`p-2 bg-gray-50 border border-gray-200 rounded-lg ${isMobile ? 'text-xs' : 'text-sm'} text-gray-800 whitespace-pre-wrap ${isMobile ? 'max-h-20' : 'max-h-32'} overflow-y-auto`}>
              {customPrompt}
            </div>
          )}
        </>
      )}
    </div>
  );
};

export default PromptEditor;