refactor: extrai componente MetricsChart do dashboard

Modulariza o gráfico de métricas em um componente reutilizável:

- Cria novo componente @/components/dashboard/MetricsChart
- Move toda a lógica de filtragem e visualização para o componente
- Define interfaces e tipos apropriados
- Encapsula estados e lógica de filtragem
- Simplifica a interface do componente (props)
- Mantém toda funcionalidade existente

Mudanças técnicas:
- Extrai interfaces e tipos relacionados
- Move constantes de configuração para o componente
- Encapsula lógica de filtragem temporal
- Simplifica o StudentDashboardPage
- Melhora a manutenibilidade e reusabilidade

CHANGELOG.md

@@ -238,3 +238,9 @@ e este projeto adere ao [Semantic Versioning](https://semver.org/lang/pt-BR/).
 - Otimização do carregamento de dados com agrupamento eficiente
 - Integração com o tema existente do sistema
 - Sistema de filtragem temporal com conversão de datas
+- Componente MetricsChart extraído e modularizado
+  - Interfaces e tipos bem definidos
+  - Lógica de filtragem encapsulada
+  - Estado interno gerenciado
+  - Props minimalistas e bem tipadas
+  - Componente reutilizável em outros contextos

src/components/dashboard/MetricsChart.tsx

@@ -0,0 +1,248 @@
+import React from 'react';
+import { Calendar, HelpCircle } from 'lucide-react';
+import { Line, XAxis, YAxis, CartesianGrid, Tooltip, Legend, ResponsiveContainer, Bar, ComposedChart } from 'recharts';
+
+interface WeeklyMetrics {
+  week: string;
+  fluency: number;
+  pronunciation: number;
+  accuracy: number;
+  comprehension: number;
+  wordsPerMinute: number;
+  pauses: number;
+  errors: number;
+  minutesRead: number;
+}
+
+interface MetricConfig {
+  key: string;
+  name: string;
+  color: string;
+}
+
+type TimeFilter = '3m' | '6m' | '12m' | 'all';
+
+interface TimeFilterOption {
+  value: TimeFilter;
+  label: string;
+  months: number | null;
+}
+
+const METRICS_CONFIG: MetricConfig[] = [
+  { key: 'fluency', name: 'Fluência', color: '#6366f1' },
+  { key: 'pronunciation', name: 'Pronúncia', color: '#f43f5e' },
+  { key: 'accuracy', name: 'Precisão', color: '#0ea5e9' },
+  { key: 'comprehension', name: 'Compreensão', color: '#10b981' },
+  { key: 'wordsPerMinute', name: 'Palavras/Min', color: '#8b5cf6' }
+];
+
+const TIME_FILTERS: TimeFilterOption[] = [
+  { value: '3m', label: '3 meses', months: 3 },
+  { value: '6m', label: '6 meses', months: 6 },
+  { value: '12m', label: '12 meses', months: 12 },
+  { value: 'all', label: 'Todo período', months: null },
+];
+
+interface MetricsChartProps {
+  data: WeeklyMetrics[];
+  className?: string;
+}
+
+export function MetricsChart({ data, className = '' }: MetricsChartProps) {
+  const [visibleMetrics, setVisibleMetrics] = React.useState<Set<string>>(
+    new Set(METRICS_CONFIG.map(metric => metric.key))
+  );
+  const [timeFilter, setTimeFilter] = React.useState<TimeFilter>('12m');
+
+  const toggleMetric = (metricKey: string) => {
+    setVisibleMetrics(prev => {
+      const newSet = new Set(prev);
+      if (newSet.has(metricKey)) {
+        newSet.delete(metricKey);
+      } else {
+        newSet.add(metricKey);
+      }
+      return newSet;
+    });
+  };
+
+  const filterDataByTime = (data: WeeklyMetrics[]): WeeklyMetrics[] => {
+    if (timeFilter === 'all') return data;
+    
+    const months = TIME_FILTERS.find(f => f.value === timeFilter)?.months || 12;
+    const cutoffDate = new Date();
+    cutoffDate.setMonth(cutoffDate.getMonth() - months);
+    
+    return data.filter(item => {
+      const [year, week] = item.week.split('-W').map(Number);
+      const itemDate = new Date(year, 0, 1 + (week - 1) * 7);
+      return itemDate >= cutoffDate;
+    });
+  };
+
+  const filteredData = filterDataByTime(data);
+
+  return (
+    <div className={`bg-white rounded-xl shadow-sm border border-gray-200 p-8 ${className}`}>
+      <div className="flex flex-col gap-6">
+        <div className="flex items-center justify-between">
+          <div className="space-y-1">
+            <h2 className="text-xl font-semibold text-gray-900">Evolução das Métricas por Semana</h2>
+            <p className="text-sm text-gray-500">Acompanhe seu progresso ao longo do tempo</p>
+          </div>
+          <div className="flex items-center gap-4">
+            {/* Filtro de Período */}
+            <div className="flex items-center gap-2 bg-gray-50 p-1 rounded-lg">
+              <Calendar className="h-4 w-4 text-gray-500" />
+              {TIME_FILTERS.map(filter => (
+                <button
+                  key={filter.value}
+                  onClick={() => setTimeFilter(filter.value)}
+                  className={`
+                    px-3 py-1 rounded-md text-sm font-medium transition-all duration-200
+                    ${timeFilter === filter.value
+                      ? 'bg-white text-purple-600 shadow-sm'
+                      : 'text-gray-600 hover:bg-gray-100'
+                    }
+                  `}
+                >
+                  {filter.label}
+                </button>
+              ))}
+            </div>
+            <div 
+              className="text-gray-400 hover:text-gray-600 cursor-help transition-colors"
+              title="Gráfico mostrando a evolução das suas métricas de leitura ao longo das semanas"
+            >
+              <HelpCircle className="h-4 w-4" />
+            </div>
+          </div>
+        </div>
+
+        {/* Pill Buttons */}
+        <div className="flex flex-wrap gap-2 p-1">
+          {METRICS_CONFIG.map(metric => (
+            <button
+              key={metric.key}
+              onClick={() => toggleMetric(metric.key)}
+              className={`
+                px-4 py-2 rounded-full text-sm font-medium transition-all duration-200 ease-in-out
+                ${visibleMetrics.has(metric.key)
+                  ? 'shadow-md transform -translate-y-px'
+                  : 'bg-gray-50 text-gray-500 hover:bg-gray-100'
+                }
+                focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-opacity-50
+              `}
+              style={{
+                backgroundColor: visibleMetrics.has(metric.key) ? metric.color : undefined,
+                color: visibleMetrics.has(metric.key) ? 'white' : undefined,
+                boxShadow: visibleMetrics.has(metric.key) ? '0 2px 4px rgba(0,0,0,0.1)' : undefined
+              }}
+            >
+              <span className="flex items-center gap-2">
+                <span className={`w-2 h-2 rounded-full ${visibleMetrics.has(metric.key) ? 'bg-white' : 'bg-gray-400'}`}></span>
+                {metric.name}
+              </span>
+            </button>
+          ))}
+        </div>
+
+        <div className="h-[400px] w-full">
+          <ResponsiveContainer width="100%" height="100%">
+            <ComposedChart data={filteredData} margin={{ top: 20, right: 30, left: 20, bottom: 20 }}>
+              <defs>
+                <linearGradient id="barGradient" x1="0" y1="0" x2="0" y2="1">
+                  <stop offset="0%" stopColor="#6366f1" stopOpacity={0.3} />
+                  <stop offset="100%" stopColor="#6366f1" stopOpacity={0.1} />
+                </linearGradient>
+              </defs>
+              <CartesianGrid 
+                strokeDasharray="3 3" 
+                vertical={false}
+                stroke="#f0f0f0"
+              />
+              <XAxis 
+                dataKey="week" 
+                axisLine={false}
+                tickLine={false}
+                tick={{ fontSize: 12, fill: '#6b7280' }}
+                dy={10}
+              />
+              <YAxis 
+                yAxisId="left"
+                axisLine={false}
+                tickLine={false}
+                tick={{ fontSize: 12, fill: '#6b7280' }}
+                dx={-10}
+              />
+              <YAxis 
+                yAxisId="right"
+                orientation="right"
+                axisLine={false}
+                tickLine={false}
+                tick={{ fontSize: 12, fill: '#6b7280' }}
+                dx={10}
+              />
+              <Tooltip 
+                formatter={(value: number, name: string) => {
+                  const metricNames: { [key: string]: string } = {
+                    fluency: 'Fluência',
+                    pronunciation: 'Pronúncia',
+                    accuracy: 'Precisão',
+                    comprehension: 'Compreensão',
+                    wordsPerMinute: 'Palavras/Min',
+                    pauses: 'Pausas',
+                    errors: 'Erros',
+                    minutesRead: 'Minutos Lidos'
+                  };
+                  return [value, metricNames[name] || name];
+                }}
+                contentStyle={{
+                  backgroundColor: 'rgba(255, 255, 255, 0.98)',
+                  border: 'none',
+                  borderRadius: '8px',
+                  boxShadow: '0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06)',
+                  padding: '12px'
+                }}
+                isAnimationActive={false}
+              />
+              <Legend 
+                verticalAlign="top"
+                align="right"
+                iconType="circle"
+                wrapperStyle={{
+                  paddingBottom: '20px'
+                }}
+              />
+              {METRICS_CONFIG.map(metric => (
+                visibleMetrics.has(metric.key) && (
+                  <Line
+                    key={metric.key}
+                    yAxisId="left"
+                    type="monotone"
+                    dataKey={metric.key}
+                    stroke={metric.color}
+                    name={metric.name}
+                    strokeWidth={2.5}
+                    dot={{ strokeWidth: 2, r: 4, fill: 'white' }}
+                    activeDot={{ r: 6, strokeWidth: 2 }}
+                    isAnimationActive={false}
+                  />
+                )
+              ))}
+              <Bar
+                yAxisId="right"
+                dataKey="minutesRead"
+                name="Minutos Lidos"
+                fill="url(#barGradient)"
+                radius={[4, 4, 0, 0]}
+                isAnimationActive={false}
+                maxBarSize={50}
+              />
+            </ComposedChart>
+          </ResponsiveContainer>
+        </div>
+      </div>
+    </div>
+  );
+} 

src/pages/student-dashboard/StudentDashboardPage.tsx

@@ -1,9 +1,9 @@
 import React from 'react';
-import { Plus, BookOpen, Clock, TrendingUp, Award, Mic, Target, Brain, Gauge, Pause, XCircle, HelpCircle, Calendar } from 'lucide-react';
+import { Plus, BookOpen, Clock, TrendingUp, Award, Mic, Target, Brain, Gauge, Pause, XCircle, HelpCircle } from 'lucide-react';
 import { useNavigate } from 'react-router-dom';
 import { supabase } from '../../lib/supabase';
 import type { Story, Student } from '../../types/database';
-import { Line, XAxis, YAxis, CartesianGrid, Tooltip, Legend, ResponsiveContainer, Bar, ComposedChart } from 'recharts';
+import { MetricsChart } from '@/components/dashboard/MetricsChart';
 
 interface DashboardMetrics {
   totalStories: number;
@@ -30,18 +30,6 @@ interface WeeklyMetrics {
   minutesRead: number;
 }
 
-interface WeeklyData {
-  count: number;
-  fluency: number;
-  pronunciation: number;
-  accuracy: number;
-  comprehension: number;
-  wordsPerMinute: number;
-  pauses: number;
-  errors: number;
-  minutesRead: number;
-}
-
 interface Recording {
   created_at: string;
   fluency_score: number;
@@ -53,35 +41,18 @@ interface Recording {
   error_count: number;
 }
 
-interface MetricConfig {
-  key: string;
-  name: string;
-  color: string;
+interface WeeklyData {
+  count: number;
+  fluency: number;
+  pronunciation: number;
+  accuracy: number;
+  comprehension: number;
+  wordsPerMinute: number;
+  pauses: number;
+  errors: number;
+  minutesRead: number;
 }
 
-type TimeFilter = '3m' | '6m' | '12m' | 'all';
-
-interface TimeFilterOption {
-  value: TimeFilter;
-  label: string;
-  months: number | null;
-}
-
-const METRICS_CONFIG: MetricConfig[] = [
-  { key: 'fluency', name: 'Fluência', color: '#6366f1' },
-  { key: 'pronunciation', name: 'Pronúncia', color: '#f43f5e' },
-  { key: 'accuracy', name: 'Precisão', color: '#0ea5e9' },
-  { key: 'comprehension', name: 'Compreensão', color: '#10b981' },
-  { key: 'wordsPerMinute', name: 'Palavras/Min', color: '#8b5cf6' }
-];
-
-const TIME_FILTERS: TimeFilterOption[] = [
-  { value: '3m', label: '3 meses', months: 3 },
-  { value: '6m', label: '6 meses', months: 6 },
-  { value: '12m', label: '12 meses', months: 12 },
-  { value: 'all', label: 'Todo período', months: null },
-];
-
 export function StudentDashboardPage() {
   const navigate = useNavigate();
   const [student, setStudent] = React.useState<Student | null>(null);
@@ -101,10 +72,6 @@ export function StudentDashboardPage() {
   const [loading, setLoading] = React.useState(true);
   const [error, setError] = React.useState<string | null>(null);
   const [recentStories, setRecentStories] = React.useState<Story[]>([]);
-  const [visibleMetrics, setVisibleMetrics] = React.useState<Set<string>>(
-    new Set(METRICS_CONFIG.map(metric => metric.key))
-  );
-  const [timeFilter, setTimeFilter] = React.useState<TimeFilter>('12m');
 
   const processWeeklyMetrics = (recordings: Recording[]) => {
     const weeklyData = recordings.reduce((acc: { [key: string]: WeeklyData }, recording) => {
@@ -153,32 +120,6 @@ export function StudentDashboardPage() {
       .sort((a, b) => a.week.localeCompare(b.week));
   };
 
-  const toggleMetric = (metricKey: string) => {
-    setVisibleMetrics(prev => {
-      const newSet = new Set(prev);
-      if (newSet.has(metricKey)) {
-        newSet.delete(metricKey);
-      } else {
-        newSet.add(metricKey);
-      }
-      return newSet;
-    });
-  };
-
-  const filterDataByTime = (data: WeeklyMetrics[]): WeeklyMetrics[] => {
-    if (timeFilter === 'all') return data;
-    
-    const months = TIME_FILTERS.find(f => f.value === timeFilter)?.months || 12;
-    const cutoffDate = new Date();
-    cutoffDate.setMonth(cutoffDate.getMonth() - months);
-    
-    return data.filter(item => {
-      const [year, week] = item.week.split('-W').map(Number);
-      const itemDate = new Date(year, 0, 1 + (week - 1) * 7);
-      return itemDate >= cutoffDate;
-    });
-  };
-
   React.useEffect(() => {
     const fetchDashboardData = async () => {
       try {
@@ -283,10 +224,10 @@ export function StudentDashboardPage() {
 
           // Calcular médias
           setMetrics({
-            totalStories: allStoriesData.length, // Usando o total de histórias
+            totalStories: allStoriesData.length,
             averageReadingFluency: Math.round(metricsSum.fluency / totalRecordings),
-            totalReadingTime: recordings.length * 2, // Exemplo: 2 minutos por gravação
-            currentLevel: Math.ceil(metricsSum.fluency / (totalRecordings * 20)), // Exemplo: nível baseado na fluência
+            totalReadingTime: recordings.length * 2,
+            currentLevel: Math.ceil(metricsSum.fluency / (totalRecordings * 20)),
             averagePronunciation: Math.round(metricsSum.pronunciation / totalRecordings),
             averageAccuracy: Math.round(metricsSum.accuracy / totalRecordings),
             averageComprehension: Math.round(metricsSum.comprehension / totalRecordings),
@@ -339,174 +280,6 @@ export function StudentDashboardPage() {
     );
   }
 
-  const renderMetricsChart = () => {
-    const filteredData = filterDataByTime(weeklyMetrics);
-    
-    return (
-      <div className="bg-white rounded-xl shadow-sm border border-gray-200 p-8 mb-8">
-        <div className="flex flex-col gap-6">
-          <div className="flex items-center justify-between">
-            <div className="space-y-1">
-              <h2 className="text-xl font-semibold text-gray-900">Evolução das Métricas por Semana</h2>
-              <p className="text-sm text-gray-500">Acompanhe seu progresso ao longo do tempo</p>
-            </div>
-            <div className="flex items-center gap-4">
-              {/* Filtro de Período */}
-              <div className="flex items-center gap-2 bg-gray-50 p-1 rounded-lg">
-                <Calendar className="h-4 w-4 text-gray-500" />
-                {TIME_FILTERS.map(filter => (
-                  <button
-                    key={filter.value}
-                    onClick={() => setTimeFilter(filter.value)}
-                    className={`
-                      px-3 py-1 rounded-md text-sm font-medium transition-all duration-200
-                      ${timeFilter === filter.value
-                        ? 'bg-white text-purple-600 shadow-sm'
-                        : 'text-gray-600 hover:bg-gray-100'
-                      }
-                    `}
-                  >
-                    {filter.label}
-                  </button>
-                ))}
-              </div>
-              <div 
-                className="text-gray-400 hover:text-gray-600 cursor-help transition-colors"
-                title="Gráfico mostrando a evolução das suas métricas de leitura ao longo das semanas"
-              >
-                <HelpCircle className="h-4 w-4" />
-              </div>
-            </div>
-          </div>
-
-          {/* Pill Buttons */}
-          <div className="flex flex-wrap gap-2 p-1">
-            {METRICS_CONFIG.map(metric => (
-              <button
-                key={metric.key}
-                onClick={() => toggleMetric(metric.key)}
-                className={`
-                  px-4 py-2 rounded-full text-sm font-medium transition-all duration-200 ease-in-out
-                  ${visibleMetrics.has(metric.key)
-                    ? 'shadow-md transform -translate-y-px'
-                    : 'bg-gray-50 text-gray-500 hover:bg-gray-100'
-                  }
-                  focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-opacity-50
-                `}
-                style={{
-                  backgroundColor: visibleMetrics.has(metric.key) ? metric.color : undefined,
-                  color: visibleMetrics.has(metric.key) ? 'white' : undefined,
-                  boxShadow: visibleMetrics.has(metric.key) ? '0 2px 4px rgba(0,0,0,0.1)' : undefined
-                }}
-              >
-                <span className="flex items-center gap-2">
-                  <span className={`w-2 h-2 rounded-full ${visibleMetrics.has(metric.key) ? 'bg-white' : 'bg-gray-400'}`}></span>
-                  {metric.name}
-                </span>
-              </button>
-            ))}
-          </div>
-
-          <div className="h-[400px] w-full">
-            <ResponsiveContainer width="100%" height="100%">
-              <ComposedChart data={filteredData} margin={{ top: 20, right: 30, left: 20, bottom: 20 }}>
-                <defs>
-                  <linearGradient id="barGradient" x1="0" y1="0" x2="0" y2="1">
-                    <stop offset="0%" stopColor="#6366f1" stopOpacity={0.3} />
-                    <stop offset="100%" stopColor="#6366f1" stopOpacity={0.1} />
-                  </linearGradient>
-                </defs>
-                <CartesianGrid 
-                  strokeDasharray="3 3" 
-                  vertical={false}
-                  stroke="#f0f0f0"
-                />
-                <XAxis 
-                  dataKey="week" 
-                  axisLine={false}
-                  tickLine={false}
-                  tick={{ fontSize: 12, fill: '#6b7280' }}
-                  dy={10}
-                />
-                <YAxis 
-                  yAxisId="left"
-                  axisLine={false}
-                  tickLine={false}
-                  tick={{ fontSize: 12, fill: '#6b7280' }}
-                  dx={-10}
-                />
-                <YAxis 
-                  yAxisId="right"
-                  orientation="right"
-                  axisLine={false}
-                  tickLine={false}
-                  tick={{ fontSize: 12, fill: '#6b7280' }}
-                  dx={10}
-                />
-                <Tooltip 
-                  formatter={(value: number, name: string) => {
-                    const metricNames: { [key: string]: string } = {
-                      fluency: 'Fluência',
-                      pronunciation: 'Pronúncia',
-                      accuracy: 'Precisão',
-                      comprehension: 'Compreensão',
-                      wordsPerMinute: 'Palavras/Min',
-                      pauses: 'Pausas',
-                      errors: 'Erros',
-                      minutesRead: 'Minutos Lidos'
-                    };
-                    return [value, metricNames[name] || name];
-                  }}
-                  contentStyle={{
-                    backgroundColor: 'rgba(255, 255, 255, 0.98)',
-                    border: 'none',
-                    borderRadius: '8px',
-                    boxShadow: '0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06)',
-                    padding: '12px'
-                  }}
-                  isAnimationActive={false}
-                />
-                <Legend 
-                  verticalAlign="top"
-                  align="right"
-                  iconType="circle"
-                  wrapperStyle={{
-                    paddingBottom: '20px'
-                  }}
-                />
-                {METRICS_CONFIG.map(metric => (
-                  visibleMetrics.has(metric.key) && (
-                    <Line
-                      key={metric.key}
-                      yAxisId="left"
-                      type="monotone"
-                      dataKey={metric.key}
-                      stroke={metric.color}
-                      name={metric.name}
-                      strokeWidth={2.5}
-                      dot={{ strokeWidth: 2, r: 4, fill: 'white' }}
-                      activeDot={{ r: 6, strokeWidth: 2 }}
-                      isAnimationActive={false}
-                    />
-                  )
-                ))}
-                <Bar
-                  yAxisId="right"
-                  dataKey="minutesRead"
-                  name="Minutos Lidos"
-                  fill="url(#barGradient)"
-                  radius={[4, 4, 0, 0]}
-                  isAnimationActive={false}
-                  maxBarSize={50}
-                />
-              </ComposedChart>
-            </ResponsiveContainer>
-          </div>
-        </div>
-      </div>
-    );
-  };
-
   return (
     <div>
       {/* Cabeçalho */}
@@ -736,7 +509,7 @@ export function StudentDashboardPage() {
       </div>
 
       {/* Gráfico de Evolução */}
-      {renderMetricsChart()}
+      <MetricsChart data={weeklyMetrics} className="mb-8" />
 
       {/* Histórias Recentes */}
       <div>