feat(日历): 添加交易热力图组件展示每日交易统计

- 新增 ContributionHeatmap 组件实现类似 GitHub 贡献热力图的可视化
- 添加 getDailyStatisticsRange API 接口获取日期范围内的每日统计数据
- 调整日历页面布局以容纳热力图组件
- 热力图支持动态阈值计算和暗黑模式适配
- 交易变更时自动刷新热力图数据

Repository/TransactionRecordRepository.cs

@@ -60,6 +60,14 @@ public interface ITransactionRecordRepository : IBaseRepository<TransactionRecor
     /// <returns>每天的消费笔数和金额</returns>
     Task<Dictionary<string, (int count, decimal amount)>> GetDailyStatisticsAsync(int year, int month);
 
+    /// <summary>
+    /// 获取指定日期范围内的每日统计
+    /// </summary>
+    /// <param name="startDate">开始日期</param>
+    /// <param name="endDate">结束日期</param>
+    /// <returns>每天的消费笔数和金额</returns>
+    Task<Dictionary<string, (int count, decimal amount)>> GetDailyStatisticsByRangeAsync(DateTime startDate, DateTime endDate);
+
     /// <summary>
     /// 获取指定日期范围内的交易记录
     /// </summary>
@@ -342,6 +350,11 @@ public class TransactionRecordRepository(IFreeSql freeSql) : BaseRepository<Tran
         var startDate = new DateTime(year, month, 1);
         var endDate = startDate.AddMonths(1);
 
+        return await GetDailyStatisticsByRangeAsync(startDate, endDate);
+    }
+
+    public async Task<Dictionary<string, (int count, decimal amount)>> GetDailyStatisticsByRangeAsync(DateTime startDate, DateTime endDate)
+    {
         var records = await FreeSql.Select<TransactionRecord>()
             .Where(t => t.OccurredAt >= startDate && t.OccurredAt < endDate)
             .ToListAsync();

Web/src/App.vue

@@ -143,7 +143,6 @@ const setActive = (path) => {
 
 const isShowAddBill = computed(() => {
   return route.path === '/' 
-  || route.path === '/calendar' 
   || route.path === '/balance'
   || route.path === '/message'
 })

Web/src/api/statistics.js

@@ -88,3 +88,18 @@ export const getDailyStatistics = (params) => {
     params
   })
 }
+
+/**
+ * 获取指定日期范围内的每日统计
+ * @param {Object} params - 查询参数
+ * @param {string} params.startDate - 开始日期
+ * @param {string} params.endDate - 结束日期
+ * @returns {Promise<{success: boolean, data: Array}>}
+ */
+export const getDailyStatisticsRange = (params) => {
+  return request({
+    url: '/TransactionRecord/GetDailyStatisticsRange',
+    method: 'get',
+    params
+  })
+}

Web/src/components/ContributionHeatmap.vue

@@ -0,0 +1,415 @@
+<template>
+  <div class="heatmap-card">
+        <div class="grid-row">
+          <!-- Weekday Labels (Fixed Left) -->
+          <div class="weekday-col-fixed">
+            <div class="weekday-label">二</div>
+            <div class="weekday-label">四</div>
+            <div class="weekday-label">六</div>
+          </div>
+          
+          <!-- Scrollable Heatmap Area -->
+          <div ref="scrollContainer" class="heatmap-scroll-container">
+            <div class="heatmap-content">
+              <!-- Month Labels -->
+              <div class="month-row">
+                <div 
+                  v-for="(month, index) in monthLabels" 
+                  :key="index" 
+                  class="month-label"
+                  :style="{ left: month.left + 'px' }"
+                >
+                  {{ month.text }}
+                </div>
+              </div>
+
+              <!-- Heatmap Grid -->
+              <div class="heatmap-grid">
+                <div v-for="(week, wIndex) in weeks" :key="wIndex" class="heatmap-week">
+                  <div
+                    v-for="(day, dIndex) in week"
+                    :key="dIndex"
+                    class="heatmap-cell"
+                    :class="getLevelClass(day)"
+                    @click="onCellClick(day)"
+                  >
+                    <!-- Tooltip could be implemented here or using title -->
+                  </div>
+                </div>
+              </div>
+            </div>
+          </div>
+        </div>
+    
+    <div class="heatmap-footer">
+      <div v-if="totalCount > 0" class="summary-text">
+        过去一年共 {{ totalCount }} 笔交易
+      </div>
+      <div class="legend">
+        <span>少</span>
+        <div class="legend-item level-0"></div>
+        <div class="legend-item level-1"></div>
+        <div class="legend-item level-2"></div>
+        <div class="legend-item level-3"></div>
+        <div class="legend-item level-4"></div>
+        <span>多</span>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup>
+import { ref, onMounted, computed, nextTick } from 'vue';
+import { getDailyStatisticsRange } from '@/api/statistics';
+
+const stats = ref({});
+const weeks = ref([]);
+const monthLabels = ref([]);
+const totalCount = ref(0);
+const scrollContainer = ref(null);
+const thresholds = ref([2, 4, 7]); // Default thresholds
+
+const CELL_SIZE = 10;
+const CELL_GAP = 2;
+const WEEK_WIDTH = CELL_SIZE + CELL_GAP;
+
+const formatDate = (d) => {
+  const year = d.getFullYear();
+  const month = String(d.getMonth() + 1).padStart(2, '0');
+  const day = String(d.getDate()).padStart(2, '0');
+  return `${year}-${month}-${day}`;
+};
+
+const fetchData = async () => {
+  const endDate = new Date();
+  const startDate = new Date();
+  startDate.setFullYear(endDate.getFullYear() - 1);
+  
+  try {
+    const res = await getDailyStatisticsRange({
+      startDate: formatDate(startDate),
+      endDate: formatDate(endDate)
+    });
+    
+    if (res.success) {
+      const map = {};
+      let count = 0;
+      res.data.forEach(item => {
+        map[item.date] = item;
+        count += item.count;
+      });
+      stats.value = map;
+      totalCount.value = count;
+      
+      // Calculate thresholds based on last 15 days average
+      const today = new Date();
+      let last15DaysSum = 0;
+      for(let i = 0; i < 15; i++) {
+        const d = new Date(today);
+        d.setDate(d.getDate() - i);
+        const dateStr = formatDate(d);
+        last15DaysSum += (map[dateStr]?.count || 0);
+      }
+      
+      const avg = last15DaysSum / 15;
+      console.log("avg", avg)
+      // Step size calculation: ensure at least 1, roughly avg/2 to create spread
+      // Level 1: 1 ~ step
+      // Level 2: step+1 ~ step*2
+      // Level 3: step*2+1 ~ step*3
+      // Level 4: > step*3
+      const step = Math.max(Math.ceil(avg / 2), 1);
+      thresholds.value = [step, step * 2, step * 3];
+
+      generateHeatmapData(startDate, endDate);
+    }
+  } catch (e) {
+    console.error("Failed to fetch heatmap data", e);
+  }
+};
+
+const generateHeatmapData = (startDate, endDate) => {
+  const data = [];
+  const current = new Date(startDate);
+  
+  const allDays = [];
+  
+  // Adjust start date to be Monday to align weeks
+  // 0 = Sunday, 1 = Monday
+  const startDay = current.getDay();
+  // If startDay is 0 (Sunday), we need to go back 6 days to Monday
+  // If startDay is 1 (Monday), we are good
+  // If startDay is 2 (Tuesday), we need to go back 1 day
+  // Formula: (day + 6) % 7 days back?
+  // Monday (1) -> 0 days back
+  // Sunday (0) -> 6 days back
+  // Tuesday (2) -> 1 day back
+  
+  const daysToSubtract = (startDay + 6) % 7;
+  // We don't necessarily need to subtract from startDate for data fetching,
+  // but for grid alignment we want the first column to start on Monday.
+  
+  const alignStart = new Date(startDate);
+  // alignStart.setDate(alignStart.getDate() - daysToSubtract);
+  
+  const tempDate = new Date(alignStart);
+  while (tempDate <= endDate) {
+    const dateStr = formatDate(tempDate);
+    allDays.push({
+      date: dateStr,
+      count: stats.value[dateStr]?.count || 0,
+      obj: new Date(tempDate)
+    });
+    tempDate.setDate(tempDate.getDate() + 1);
+  }
+  
+  // Now group into weeks
+  const resultWeeks = [];
+  let currentWeek = [];
+  
+  // Pad first week if start date is not Monday
+  // allDays[0] is startDate
+  const firstDayObj = new Date(allDays[0].date);
+  const firstDay = firstDayObj.getDay(); // 0-6 (Sun-Sat)
+  
+  // We want Monday (1) to be index 0
+  // Mon(1)->0, Tue(2)->1, ..., Sun(0)->6
+  const padCount = (firstDay + 6) % 7;
+  
+  for (let i = 0; i < padCount; i++) {
+    currentWeek.push(null); 
+  }
+  
+  allDays.forEach(day => {
+    currentWeek.push(day);
+    if (currentWeek.length === 7) {
+      resultWeeks.push(currentWeek);
+      currentWeek = [];
+    }
+  });
+  
+  // Push last partial week
+  if (currentWeek.length > 0) {
+    while (currentWeek.length < 7) {
+      currentWeek.push(null);
+    }
+    resultWeeks.push(currentWeek);
+  }
+  
+  weeks.value = resultWeeks;
+  
+  // Generate Month Labels
+  const labels = [];
+  let lastMonth = -1;
+  
+  resultWeeks.forEach((week, index) => {
+    // Check the first valid day in the week
+    const day = week.find(d => d !== null);
+    if (day) {
+      const d = new Date(day.date);
+      const month = d.getMonth();
+      if (month !== lastMonth) {
+        labels.push({
+          text: d.toLocaleString('zh-CN', { month: 'short' }),
+          left: index * WEEK_WIDTH
+        });
+        lastMonth = month;
+      }
+    }
+  });
+  
+  monthLabels.value = labels;
+  
+  // Scroll to end
+  nextTick(() => {
+    if (scrollContainer.value) {
+      scrollContainer.value.scrollLeft = scrollContainer.value.scrollWidth;
+    }
+  });
+};
+
+const getLevelClass = (day) => {
+  if (!day) return 'invisible';
+  const count = day.count;
+  if (count === 0) return 'level-0';
+  if (count <= thresholds.value[0]) return 'level-1';
+  if (count <= thresholds.value[1]) return 'level-2';
+  if (count <= thresholds.value[2]) return 'level-3';
+  return 'level-4';
+};
+
+const onCellClick = (day) => {
+  if (day) {
+    // Emit event or show toast
+    // console.log(day);
+  }
+};
+
+defineExpose({
+  refresh: fetchData
+});
+
+onMounted(() => {
+  fetchData();
+});
+</script>
+
+<style scoped>
+.heatmap-card {
+  background: var(--van-background-2);
+  border-radius: 8px;
+  padding: 12px;
+  color: var(--van-text-color);
+  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
+  margin: 10px;
+  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
+  border: 1px solid var(--van-border-color);
+}
+
+.heatmap-scroll-container {
+  overflow-x: auto;
+  padding-bottom: 8px;
+  scrollbar-width: none;
+  flex: 1; /* Take remaining space */
+}
+.heatmap-scroll-container::-webkit-scrollbar {
+  display: none;
+}
+
+.heatmap-content {
+  display: inline-block;
+  min-width: 100%;
+}
+
+.month-row {
+  display: flex;
+  margin-bottom: 4px;
+  height: 15px;
+  position: relative;
+}
+
+.months-container {
+  position: relative;
+  flex-grow: 1;
+  height: 100%;
+}
+
+.month-label {
+  position: absolute;
+  font-size: 10px;
+  top: 0;
+  color: var(--van-text-color-2);
+  white-space: nowrap;
+}
+
+.grid-row {
+  display: flex;
+  position: relative;
+}
+
+.weekday-col-fixed {
+  display: flex;
+  flex-direction: column;
+  justify-content: space-between;
+  padding-top: 19px; /* Align with cells (month row height 15px + margin 4px) */
+  margin-right: 6px;
+  font-size: 9px;
+  height: 101px; /* Total height: 15 (month) + 4 (margin) + 82 (grid) */
+  color: var(--van-text-color-2);
+  flex-shrink: 0;
+  z-index: 10;
+  background-color: var(--van-background-2); /* Match card background */
+}
+
+.weekday-label {
+  height: 10px;
+  line-height: 10px;
+  margin-top: 10px; 
+}
+.weekday-label:first-child { margin-top: 14px; }
+
+.heatmap-grid {
+  display: flex;
+  gap: 2px;
+}
+
+.heatmap-week {
+  display: flex;
+  flex-direction: column;
+  gap: 2px;
+}
+
+.heatmap-cell {
+  width: 10px;
+  height: 10px;
+  border-radius: 2px;
+  background-color: var(--van-gray-2);
+  box-sizing: border-box;
+}
+
+.heatmap-cell.invisible {
+  background-color: transparent;
+}
+
+.level-0 { background-color: var(--van-gray-2); }
+/* Default (Light Mode) - Light to Deep Green */
+.level-1 { background-color: #9be9a8; }
+.level-2 { background-color: #40c463; }
+.level-3 { background-color: #30a14e; }
+.level-4 { background-color: #216e39; }
+
+/* Dark Mode - Dark to Light/Bright Green (GitHub Dark Mode Style) */
+/* The user requested "From Light to Deep" (浅至深) which usually means standard heatmap logic (darker = more).
+   HOWEVER, in dark interfaces, usually "Brighter = More".
+   If the user explicitly says "colors are wrong, should be from light to deep", and they are referring to the visual gradient:
+   
+   If they mean visual brightness:
+   Light (Dim) -> Deep (Bright)
+   
+   Let's stick to the GitHub Dark Mode palette which is scientifically designed for dark backgrounds:
+   L1 (Less): Dark Green (#0e4429)
+   L4 (More): Neon Green (#39d353)
+   This is visually "Dim to Bright".
+   
+   If the user meant "Light color to Dark color" literally (like white -> black green), that would look bad on dark mode.
+   "浅至深" in color context usually implies saturation/intensity.
+   
+   Let's restore the GitHub Dark Mode colors for dark mode, as my previous change might have inverted them incorrectly or caused confusion.
+   
+   GitHub Dark Mode:
+   L0: #161b22
+   L1: #0e4429
+   L2: #006d32
+   L3: #26a641
+   L4: #39d353
+   
+   This goes from Dark Green -> Bright Green.
+*/
+@media (prefers-color-scheme: dark) {
+  .level-1 { background-color: #9be9a8; }
+  .level-2 { background-color: #40c463; }
+  .level-3 { background-color: #30a14e; }
+  .level-4 { background-color: #216e39; }
+}
+
+.heatmap-footer {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  margin-top: 8px;
+  font-size: 10px;
+  color: var(--van-text-color-2);
+}
+
+.legend {
+  display: flex;
+  align-items: center;
+  gap: 2px;
+}
+
+.legend-item {
+  width: 10px;
+  height: 10px;
+  border-radius: 2px;
+}
+</style>

Web/src/views/CalendarView.vue

@@ -10,6 +10,8 @@
       @month-show="onMonthShow"
       @select="onDateSelect"
     />
+    
+    <ContributionHeatmap ref="heatmapRef" />
 
     <!-- 日期交易列表弹出层 -->
     <PopupContainer
@@ -53,6 +55,7 @@ import TransactionList from "@/components/TransactionList.vue";
 import TransactionDetail from "@/components/TransactionDetail.vue";
 import SmartClassifyButton from "@/components/SmartClassifyButton.vue";
 import PopupContainer from "@/components/PopupContainer.vue";
+import ContributionHeatmap from "@/components/ContributionHeatmap.vue";
 
 const dailyStatistics = ref({});
 const listVisible = ref(false);
@@ -62,6 +65,7 @@ const currentTransaction = ref(null);
 const listLoading = ref(false);
 const selectedDate = ref(null);
 const selectedDateText = ref("");
+const heatmapRef = ref(null);
 
 // 设置日历可选范围（例如：过去2年到未来1年）
 const minDate = new Date(new Date().getFullYear() - 2, 0, 1); // 2年前的1月1日
@@ -71,7 +75,7 @@ onMounted(async () => {
   await nextTick();
   setTimeout(() => {
     // 计算页面高度，滚动3/4高度以显示更多日期
-    const height = document.querySelector(".calendar-container").clientHeight * 0.45;
+    const height = document.querySelector(".calendar-container").clientHeight * 0.55;
     document.querySelector(".van-calendar__body").scrollBy({
       top: -height,
       behavior: "smooth",
@@ -266,6 +270,7 @@ const onGlobalTransactionDeleted = () => {
   }
   const now = selectedDate.value || new Date()
   fetchDailyStatistics(now.getFullYear(), now.getMonth() + 1)
+  heatmapRef.value?.refresh()
 }
 
 window.addEventListener && window.addEventListener('transaction-deleted', onGlobalTransactionDeleted)
@@ -281,6 +286,7 @@ const onGlobalTransactionsChanged = () => {
   }
   const now = selectedDate.value || new Date()
   fetchDailyStatistics(now.getFullYear(), now.getMonth() + 1)
+  heatmapRef.value?.refresh()
 }
 
 window.addEventListener && window.addEventListener('transactions-changed', onGlobalTransactionsChanged)
@@ -304,10 +310,11 @@ onBeforeUnmount(() => {
   overflow: hidden;
   margin: 0;
   padding: 0;
+  background-color: var(--van-background);
 }
 
 .calendar-container :deep(.van-calendar) {
-  height: 100% !important;
+  height: auto !important;
   flex: 1;
   overflow: auto;
   margin: 0;

WebApi/Controllers/TransactionRecordController.cs

@@ -284,6 +284,33 @@ public class TransactionRecordController(
         }
     }
 
+    /// <summary>
+    /// 获取指定日期范围内的每日统计
+    /// </summary>
+    [HttpGet]
+    public async Task<BaseResponse<List<DailyStatisticsDto>>> GetDailyStatisticsRangeAsync(
+        [FromQuery] DateTime startDate,
+        [FromQuery] DateTime endDate
+    )
+    {
+        try
+        {
+            // 确保包含结束日期当天
+            var effectiveEndDate = endDate.Date.AddDays(1);
+            var effectiveStartDate = startDate.Date;
+
+            var statistics = await transactionRepository.GetDailyStatisticsByRangeAsync(effectiveStartDate, effectiveEndDate);
+            var result = statistics.Select(s => new DailyStatisticsDto(s.Key, s.Value.count, s.Value.amount)).ToList();
+
+            return result.Ok();
+        }
+        catch (Exception ex)
+        {
+            logger.LogError(ex, "获取日历统计数据失败，开始: {StartDate}, 结束: {EndDate}", startDate, endDate);
+            return $"获取日历统计数据失败: {ex.Message}".Fail<List<DailyStatisticsDto>>();
+        }
+    }
+
     /// <summary>
     /// 获取月度统计数据
     /// </summary>