feat(chat): move thinking modes, token usage pie, and related logic into chat folder

src/components/chat/view/subcomponents/ChatInputControls.tsx

@@ -1,8 +1,8 @@
 import React from 'react';
 import { useTranslation } from 'react-i18next';
-import ThinkingModeSelector from '../../ThinkingModeSelector.jsx';
-import TokenUsagePie from '../../TokenUsagePie';
-import type { PermissionMode, Provider } from '../types';
+import ThinkingModeSelector from './ThinkingModeSelector.jsx';
+import TokenUsagePie from './TokenUsagePie';
+import type { PermissionMode, Provider } from '../../types/types';
 
 interface ChatInputControlsProps {
   permissionMode: PermissionMode | string;

src/components/chat/view/subcomponents/ThinkingModeSelector.tsx

@@ -0,0 +1,145 @@
+import { useState, useRef, useEffect } from 'react';
+import { Brain, X } from 'lucide-react';
+import { useTranslation } from 'react-i18next';
+
+import { thinkingModes } from '../../constants/thinkingModes';
+
+type ThinkingModeSelectorProps = {
+  selectedMode: string;
+  onModeChange: (modeId: string) => void;
+  onClose?: () => void;
+  className?: string;
+};
+
+function ThinkingModeSelector({ selectedMode, onModeChange, onClose, className = '' }: ThinkingModeSelectorProps) {
+  const { t } = useTranslation('chat');
+
+  // Mapping from mode ID to translation key
+  const modeKeyMap: Record<string, string> = {
+    'think-hard': 'thinkHard',
+    'think-harder': 'thinkHarder'
+  };
+  // Create translated modes for display
+  const translatedModes = thinkingModes.map(mode => {
+    const modeKey = modeKeyMap[mode.id] || mode.id;
+    return {
+      ...mode,
+      name: t(`thinkingMode.modes.${modeKey}.name`),
+      description: t(`thinkingMode.modes.${modeKey}.description`),
+      prefix: t(`thinkingMode.modes.${modeKey}.prefix`)
+    };
+  });
+
+  const [isOpen, setIsOpen] = useState(false);
+  const dropdownRef = useRef<HTMLDivElement>(null);
+
+  useEffect(() => {
+    const handleClickOutside = (event: MouseEvent) => {
+      if (dropdownRef.current && !dropdownRef.current.contains(event.target as Node)) {
+        setIsOpen(false);
+        if (onClose) onClose();
+      }
+    };
+
+    document.addEventListener('mousedown', handleClickOutside);
+    return () => document.removeEventListener('mousedown', handleClickOutside);
+  }, [onClose]);
+
+  const currentMode = translatedModes.find(mode => mode.id === selectedMode) || translatedModes[0];
+  const IconComponent = currentMode.icon || Brain;
+
+  return (
+    <div className={`relative ${className}`} ref={dropdownRef}>
+      <button
+        type="button"
+        onClick={() => setIsOpen(!isOpen)}
+        className={`w-10 h-10 sm:w-10 sm:h-10 rounded-full flex items-center justify-center transition-all duration-200 ${selectedMode === 'none'
+            ? 'bg-gray-100 hover:bg-gray-200 dark:bg-gray-700 dark:hover:bg-gray-600'
+            : 'bg-blue-100 hover:bg-blue-200 dark:bg-blue-900 dark:hover:bg-blue-800'
+          }`}
+        title={t('thinkingMode.buttonTitle', { mode: currentMode.name })}
+      >
+        <IconComponent className={`w-5 h-5 ${currentMode.color}`} />
+      </button>
+
+      {isOpen && (
+        <div className="absolute bottom-full right-0 mb-2 w-64 bg-white dark:bg-gray-800 rounded-lg shadow-xl border border-gray-200 dark:border-gray-700 overflow-hidden">
+          <div className="p-3 border-b border-gray-200 dark:border-gray-700">
+            <div className="flex items-center justify-between">
+              <h3 className="text-sm font-semibold text-gray-900 dark:text-white">
+                {t('thinkingMode.selector.title')}
+              </h3>
+              <button
+                onClick={() => {
+                  setIsOpen(false);
+                  if (onClose) onClose();
+                }}
+                className="p-1 hover:bg-gray-100 dark:hover:bg-gray-700 rounded"
+              >
+                <X className="w-4 h-4 text-gray-500" />
+              </button>
+            </div>
+            <p className="text-xs text-gray-500 dark:text-gray-400 mt-1">
+              {t('thinkingMode.selector.description')}
+            </p>
+          </div>
+
+          <div className="py-1">
+            {translatedModes.map((mode) => {
+              const ModeIcon = mode.icon;
+              const isSelected = mode.id === selectedMode;
+
+              return (
+                <button
+                  key={mode.id}
+                  onClick={() => {
+                    onModeChange(mode.id);
+                    setIsOpen(false);
+                    if (onClose) onClose();
+                  }}
+                  className={`w-full px-4 py-3 text-left hover:bg-gray-50 dark:hover:bg-gray-700 transition-colors ${isSelected ? 'bg-gray-50 dark:bg-gray-700' : ''
+                    }`}
+                >
+                  <div className="flex items-start gap-3">
+                    <div className={`mt-0.5 ${mode.icon ? mode.color : 'text-gray-400'}`}>
+                      {ModeIcon ? <ModeIcon className="w-5 h-5" /> : <div className="w-5 h-5" />}
+                    </div>
+                    <div className="flex-1 min-w-0">
+                      <div className="flex items-center gap-2">
+                        <span className={`font-medium text-sm ${isSelected ? 'text-gray-900 dark:text-white' : 'text-gray-700 dark:text-gray-300'
+                          }`}>
+                          {mode.name}
+                        </span>
+                        {isSelected && (
+                          <span className="text-xs bg-blue-100 dark:bg-blue-900 text-blue-700 dark:text-blue-300 px-2 py-0.5 rounded">
+                            {t('thinkingMode.selector.active')}
+                          </span>
+                        )}
+                      </div>
+                      <p className="text-xs text-gray-500 dark:text-gray-400 mt-0.5">
+                        {mode.description}
+                      </p>
+                      {mode.prefix && (
+                        <code className="text-xs bg-gray-100 dark:bg-gray-700 px-1.5 py-0.5 rounded mt-1 inline-block">
+                          {mode.prefix}
+                        </code>
+                      )}
+                    </div>
+                  </div>
+                </button>
+              );
+            })}
+          </div>
+
+          <div className="p-3 border-t border-gray-200 dark:border-gray-700 bg-gray-50 dark:bg-gray-900">
+            <p className="text-xs text-gray-600 dark:text-gray-400">
+              <strong>Tip:</strong> {t('thinkingMode.selector.tip')}
+            </p>
+          </div>
+        </div>
+      )}
+    </div>
+  );
+}
+
+export default ThinkingModeSelector;

src/components/chat/view/subcomponents/TokenUsagePie.tsx

@@ -0,0 +1,54 @@
+type TokenUsagePieProps = {
+  used: number;
+  total: number;
+};
+
+export default function TokenUsagePie({ used, total }: TokenUsagePieProps) {
+  // Token usage visualization component
+  // Only bail out on missing values or non‐positive totals; allow used===0 to render 0%
+  if (used == null || total == null || total <= 0) return null;
+
+  const percentage = Math.min(100, (used / total) * 100);
+  const radius = 10;
+  const circumference = 2 * Math.PI * radius;
+  const offset = circumference - (percentage / 100) * circumference;
+
+  // Color based on usage level
+  const getColor = () => {
+    if (percentage < 50) return '#3b82f6'; // blue
+    if (percentage < 75) return '#f59e0b'; // orange
+    return '#ef4444'; // red
+  };
+
+  return (
+    <div className="flex items-center gap-2 text-xs text-gray-600 dark:text-gray-400">
+      <svg width="24" height="24" viewBox="0 0 24 24" className="transform -rotate-90">
+        {/* Background circle */}
+        <circle
+          cx="12"
+          cy="12"
+          r={radius}
+          fill="none"
+          stroke="currentColor"
+          strokeWidth="2"
+          className="text-gray-300 dark:text-gray-600"
+        />
+        {/* Progress circle */}
+        <circle
+          cx="12"
+          cy="12"
+          r={radius}
+          fill="none"
+          stroke={getColor()}
+          strokeWidth="2"
+          strokeDasharray={circumference}
+          strokeDashoffset={offset}
+          strokeLinecap="round"
+        />
+      </svg>
+      <span title={`${used.toLocaleString()} / ${total.toLocaleString()} tokens`}>
+        {percentage.toFixed(1)}%
+      </span>
+    </div>
+  );
+}