cfc/cfc-frontend/pages/mind/emotion-trend.vue

<template>
  <view class="trend-container">
    <!-- 统计概览卡片 -->
    <view class="stats-overview">
      <view class="stat-item">
        <text class="stat-value">{{ stats.totalCheckins || 0 }}</text>
        <text class="stat-label">总打卡</text>
      </view>
      <view class="stat-item">
        <text class="stat-value">{{ stats.currentStreak || 0 }}</text>
        <text class="stat-label">连续天数</text>
      </view>
      <view class="stat-item">
        <text class="stat-value">{{ stats.thisMonthCheckins || 0 }}</text>
        <text class="stat-label">本月打卡</text>
      </view>
      <view class="stat-item">
        <text class="stat-value">{{ stats.totalEnergy || 0 }}</text>
        <text class="stat-label">心能量</text>
      </view>
    </view>

    <!-- 周期切换 -->
    <view class="period-tabs">
      <view
        :class="['period-tab', period === 'week' ? 'period-active' : '']"
        @click="switchPeriod('week')">
        <text>周</text>
      </view>
      <view
        :class="['period-tab', period === 'month' ? 'period-active' : '']"
        @click="switchPeriod('month')">
        <text>月</text>
      </view>
    </view>

    <!-- ===== Phase 1.1: 情绪评分折线图 ===== -->
    <view class="chart-card" v-if="moodTrendData.length > 0">
      <text class="card-title">情绪评分趋势</text>
      <text class="card-subtitle" v-if="trend && trend.moodScoreAvg">周均分: {{ trend.moodScoreAvg }}</text>
      <canvas class="line-chart-canvas" canvas-id="moodTrendCanvas" @ready="drawMoodTrend"></canvas>
    </view>

    <!-- ===== Phase 1.1: 效价-激活度散点图 ===== -->
    <view class="chart-card" v-if="scatterData.length > 0">
      <text class="card-title">情绪空间分布</text>
      <text class="card-subtitle">每个点代表一次打卡</text>
      <canvas class="scatter-canvas" canvas-id="scatterCanvas" @ready="drawScatter"></canvas>
    </view>

    <!-- ===== 情绪日历（升级为热力版） ===== -->
    <view class="calendar-card">
      <text class="card-title">情绪日历</text>
      <view class="calendar-grid">
        <view class="calendar-weekday" v-for="wd in weekdays" :key="wd">
          <text>{{ wd }}</text>
        </view>
        <view
          v-for="(day, idx) in calendarDays"
          :key="idx"
          :class="['calendar-day', day.isToday ? 'is-today' : '', day.moodScore ? 'has-data' : '']"
          :style="day.bgStyle"
          @click="day.moodScore && showDayDetail(day)">
          <text class="day-num">{{ day.dayNum }}</text>
          <text v-if="day.weather" class="day-emoji-small">{{ weatherEmoji(day.weather) }}</text>
          <text v-if="day.moodScore" class="day-score">{{ day.moodScore }}</text>
        </view>
      </view>
      <!-- 热力图例 -->
      <view class="heatmap-legend">
        <text class="legend-label">低</text>
        <view class="legend-bar">
          <view class="legend-step" style="background:#FFE0E0"></view>
          <view class="legend-step" style="background:#FFB0B0"></view>
          <view class="legend-step" style="background:#FFD9A0"></view>
          <view class="legend-step" style="background:#C8E6C9"></view>
          <view class="legend-step" style="background:#81C784"></view>
        </view>
        <text class="legend-label">高</text>
      </view>
    </view>

    <!-- 情绪分布 -->
    <view class="distribution-card">
      <text class="card-title">情绪分布</text>
      <view class="distribution-list">
        <view class="dist-item" v-for="dist in distributionData" :key="dist.weather">
          <text class="dist-emoji">{{ dist.icon }}</text>
          <text class="dist-label">{{ dist.label }}</text>
          <view class="dist-bar-track">
            <view class="dist-bar-fill" :style="{ width: dist.percent + '%', background: dist.color }"></view>
          </view>
          <text class="dist-count">{{ dist.count }}次</text>
        </view>
      </view>
    </view>

    <!-- 按天详情（含情绪精细数据） -->
    <view class="daily-list-card" v-if="dailyData.length > 0">
      <text class="card-title">每日记录</text>
      <view class="daily-item" v-for="(day, idx) in dailyData" :key="idx" @click="viewDayCheckin(day)">
        <text class="daily-date">{{ formatDate(day.date) }}</text>
        <text class="daily-emoji">{{ weatherEmoji(day.weather) }}</text>
        <text class="daily-weather">{{ weatherLabel(day.weather) }}</text>
        <!-- Phase 1.1 精细数据标签 -->
        <view class="daily-tags" v-if="day.moodScore">
          <text class="daily-tag score-tag">{{ day.moodScore }}分</text>
          <text class="daily-tag type-tag" v-if="day.emotionType">{{ emotionTypeLabel(day.emotionType) }}</text>
          <text class="daily-tag arousal-tag" v-if="day.arousalLevel">激活{{ day.arousalLevel }}</text>
        </view>
      </view>
    </view>

    <view class="empty-state" v-if="!stats || stats.totalCheckins === 0">
      <text class="empty-icon">&#x1F4AD;</text>
      <text class="empty-text">还没有情绪打卡记录</text>
      <button class="empty-btn" @click="goCheckin">去打卡</button>
    </view>
  </view>
</template>

<script>
import config from '../../config'

export default {
  data() {
    return {
      period: 'week',
      stats: null,
      trend: null,
      weekdays: ['日', '一', '二', '三', '四', '五', '六'],
      weatherConfig: {
        sunny: { icon: '\u2600\uFE0F', label: '心情很好', color: '#FFB347' },
        cloudy: { icon: '\u26C5', label: '一般般', color: '#A0A0A0' },
        rainy: { icon: '\uD83C\uDF27\uFE0F', label: '有点难过', color: '#6B9BD2' },
        stormy: { icon: '\u26A1', label: '很烦躁', color: '#8B5CF6' },
        rainbow: { icon: '\uD83C\uDF08', label: '特别开心', color: '#FF6B9D' }
      },
      // Plutchik 情绪中文映射
      emotionTypeLabels: {
        'joy': '开心', 'trust': '信任', 'fear': '恐惧', 'surprise': '惊讶',
        'sadness': '悲伤', 'disgust': '厌恶', 'anger': '愤怒', 'anticipation': '期待'
      },

      // 散点/折线图数据
      scatterData: [],
      moodTrendData: [],

      // Canvas 上下文
      scatterCtx: null,
      trendCtx: null
    }
  },

  computed: {
    calendarDays() {
      const days = []
      const now = new Date()
      const year = now.getFullYear()
      const month = now.getMonth()
      const firstDay = new Date(year, month, 1).getDay()
      const daysInMonth = new Date(year, month + 1, 0).getDate()
      const today = now.getDate()

      // Build data map from dailyData
      const dataMap = {}
      if (this.trend && this.trend.dailyData) {
        for (const d of this.trend.dailyData) {
          if (d.date) {
            const dateObj = new Date(d.date)
            dataMap[dateObj.getDate()] = d
          }
        }
      }

      // Empty leading cells
      for (let i = 0; i < firstDay; i++) {
        days.push({ dayNum: '', weather: null, moodScore: null, isToday: false, bgStyle: '' })
      }

      for (let d = 1; d <= daysInMonth; d++) {
        const data = dataMap[d]
        var bgStyle = ''
        if (data && data.moodScore) {
          // Heatmap intensity: moodScore 1-10 mapped to color
          var score = data.moodScore
          var r, g, b
          if (score <= 3) {
            // 1-3: red tint
            var intensity1 = (score - 1) / 2
            r = 255
            g = Math.round(180 + 75 * intensity1)
            b = Math.round(180 + 75 * intensity1)
          } else if (score <= 6) {
            // 4-6: orange/yellow tint
            var intensity2 = (score - 4) / 2
            r = 255
            g = Math.round(200 + 55 * intensity2)
            b = Math.round(160 - 60 * intensity2)
          } else {
            // 7-10: green tint
            var intensity3 = (score - 7) / 3
            r = Math.round(200 - 120 * intensity3)
            g = Math.round(230 - 20 * intensity3)
            b = Math.round(200 - 120 * intensity3)
          }
          bgStyle = 'background: rgba(' + r + ',' + g + ',' + b + ',0.4)'
        }

        days.push({
          dayNum: d,
          weather: data ? data.weather : null,
          moodScore: data ? data.moodScore : null,
          emotionType: data ? data.emotionType : null,
          arousalLevel: data ? data.arousalLevel : null,
          isToday: d === today,
          bgStyle: bgStyle
        })
      }

      return days
    },

    distributionData() {
      const dist = this.trend && this.trend.weatherDistribution
      if (!dist) return []
      const total = Object.values(dist).reduce((a, b) => a + b, 0)
      if (total === 0) return []

      return Object.keys(dist).map(w => {
        const cfg = this.weatherConfig[w] || { icon: '?', label: w, color: '#ccc' }
        return {
          weather: w,
          icon: cfg.icon,
          label: cfg.label,
          color: cfg.color,
          count: dist[w],
          percent: Math.round(dist[w] / total * 100)
        }
      })
    },

    dailyData() {
      return this.trend && this.trend.dailyData || []
    }
  },

  onLoad() {
    this.loadData()
  },

  methods: {
    loadData() {
      const app = getApp()
      const childId = app.globalData.currentChildId
      if (!childId) return

      uni.request({
        url: config.API_BASE_URL + '/api/mind/checkin/stats',
        method: 'POST',
        data: { childId },
        success: (res) => {
          if (res.data && res.data.code === 200) {
            this.stats = res.data.data
          }
        }
      })

      uni.request({
        url: config.API_BASE_URL + '/api/mind/checkin/trend',
        method: 'POST',
        data: { childId, period: this.period },
        success: (res) => {
          if (res.data && res.data.code === 200) {
            this.trend = res.data.data
            // Extract scatter & trend data
            this.scatterData = this.trend && this.trend.scatterData || []
            this.moodTrendData = this.trend && this.trend.moodTrend || []
            // Draw charts after data is ready
            this.$nextTick(function() {
              this.drawMoodTrend()
              this.drawScatter()
            })
          }
        }
      })
    },

    switchPeriod(p) {
      this.period = p
      this.loadData()
    },

    weatherEmoji(weather) {
      const cfg = this.weatherConfig[weather]
      return cfg ? cfg.icon : ''
    },

    weatherLabel(weather) {
      const cfg = this.weatherConfig[weather]
      return cfg ? cfg.label : weather
    },

    emotionTypeLabel(type) {
      return this.emotionTypeLabels[type] || type
    },

    formatDate(dateStr) {
      if (!dateStr) return ''
      const d = new Date(dateStr)
      return (d.getMonth() + 1) + '/' + d.getDate()
    },

    goCheckin() {
      uni.navigateTo({ url: '/pages/mind/emotion-checkin' })
    },

    showDayDetail(day) {
      // 点击日历格子可以跳转到当天的打卡详情
      // 简单 toast 显示评分
      uni.showToast({ title: '情绪评分: ' + day.moodScore + '/10', icon: 'none' })
    },

    viewDayCheckin(day) {
      // 查看单条打卡详情（当前简单响应）
      if (day.moodScore) {
        uni.showToast({ title: '情绪评分: ' + day.moodScore + '/10', icon: 'none' })
      }
    },

    // ===== Canvas 绘图 =====

    drawMoodTrend() {
      if (this.moodTrendData.length < 1) return

      var canvasId = 'moodTrendCanvas'
      var query = uni.createSelectorQuery()
      var self = this

      query.select('#' + canvasId).fields({ node: true, size: true }).exec(function(res) {
        // Fallback: use context API for older uni-app
        var ctx = uni.createCanvasContext(canvasId, self)
        var dpr = 2
        // Get canvas dimensions from the element
        query.select('#' + canvasId).boundingClientRect(function(rect) {
          if (!rect) return
          var width = rect.width || 300
          var height = rect.height || 200
          var canvasWidth = width * dpr
          var canvasHeight = height * dpr

          // Clear
          ctx.clearRect(0, 0, canvasWidth, canvasHeight)

          var data = self.moodTrendData
          var count = data.length
          if (count === 0) return

          var padding = { top: 20 * dpr, right: 20 * dpr, bottom: 30 * dpr, left: 30 * dpr }
          var plotW = canvasWidth - padding.left - padding.right
          var plotH = canvasHeight - padding.top - padding.bottom

          // Draw axes
          ctx.setStrokeStyle('#E0E0E0')
          ctx.setLineWidth(1 * dpr)
          ctx.beginPath()
          ctx.moveTo(padding.left, padding.top)
          ctx.lineTo(padding.left, padding.top + plotH)
          ctx.lineTo(padding.left + plotW, padding.top + plotH)
          ctx.stroke()

          // Draw Y axis labels
          ctx.setFontSize(10 * dpr)
          ctx.setFillStyle('#999')
          ctx.setTextAlign('right')
          for (var yVal = 2; yVal <= 10; yVal += 2) {
            var yPos = padding.top + plotH - (yVal / 10) * plotH
            ctx.fillText(yVal + '', padding.left - 6 * dpr, yPos + 3 * dpr)
            // Grid line
            ctx.setStrokeStyle('#F0F0F0')
            ctx.setLineWidth(1 * dpr)
            ctx.beginPath()
            ctx.moveTo(padding.left, yPos)
            ctx.lineTo(padding.left + plotW, yPos)
            ctx.stroke()
          }

          // Determine trend line color based on trend direction
          var avg = 0
          for (var si = 0; si < count; si++) {
            avg += data[si].moodScore
          }
          avg /= count
          var lineColor = avg >= 5 ? '#10B981' : '#FF6B9D'

          // Draw data points and lines
          ctx.setStrokeStyle(lineColor)
          ctx.setLineWidth(3 * dpr)
          ctx.setFillStyle(lineColor)

          for (var i = 0; i < count; i++) {
            var x = padding.left + (i / Math.max(count - 1, 1)) * plotW
            var y = padding.top + plotH - (data[i].moodScore / 10) * plotH

            if (i === 0) {
              ctx.beginPath()
              ctx.moveTo(x, y)
            } else {
              ctx.lineTo(x, y)
            }

            // Draw point circle
            ctx.beginPath()
            ctx.arc(x, y, 4 * dpr, 0, 2 * Math.PI)
            ctx.setFillStyle(lineColor)
            ctx.fill()
          }
          ctx.stroke()

          // Draw X axis labels (dates)
          ctx.setFontSize(9 * dpr)
          ctx.setFillStyle('#999')
          ctx.setTextAlign('center')
          var step = Math.max(1, Math.floor(count / 6))
          for (var di = 0; di < count; di += step) {
            var labelX = padding.left + (di / Math.max(count - 1, 1)) * plotW
            var labelText = self.formatDate(data[di].date)
            ctx.fillText(labelText, labelX, padding.top + plotH + 18 * dpr)
          }

          ctx.draw()
        }).exec()
      })
    },

    drawScatter() {
      if (this.scatterData.length < 3) return

      var canvasId = 'scatterCanvas'
      var query = uni.createSelectorQuery()
      var self = this

      query.select('#' + canvasId).boundingClientRect(function(rect) {
        if (!rect) return
        var ctx = uni.createCanvasContext(canvasId, self)
        var dpr = 2
        var width = rect.width || 300
        var height = rect.height || 200
        var canvasWidth = width * dpr
        var canvasHeight = height * dpr

        ctx.clearRect(0, 0, canvasWidth, canvasHeight)

        var padding = { top: 20 * dpr, right: 20 * dpr, bottom: 30 * dpr, left: 30 * dpr }
        var plotW = canvasWidth - padding.left - padding.right
        var plotH = canvasHeight - padding.top - padding.bottom

        // Draw background with 4 quadrants
        // Q1 (high arousal, high valence): top-right
        var midX = padding.left + plotW / 2
        var midY = padding.top + plotH / 2

        // Quadrant backgrounds
        ctx.setFillStyle('rgba(255,240,240,0.3)')
        ctx.fillRect(midX, padding.top, plotW / 2, plotH / 2)  // high arousal, high valence
        ctx.setFillStyle('rgba(240,240,255,0.3)')
        ctx.fillRect(padding.left, padding.top, plotW / 2, plotH / 2)  // high arousal, low valence
        ctx.setFillStyle('rgba(255,248,240,0.3)')
        ctx.fillRect(midX, midY, plotW / 2, plotH / 2)  // low arousal, high valence
        ctx.setFillStyle('rgba(245,245,245,0.3)')
        ctx.fillRect(padding.left, midY, plotW / 2, plotH / 2)  // low arousal, low valence

        // Quadrant labels
        ctx.setFontSize(10 * dpr)
        ctx.setFillStyle('rgba(0,0,0,0.15)')
        ctx.setTextAlign('center')
        ctx.fillText('兴奋', padding.left + plotW * 0.75, padding.top + plotH * 0.3)
        ctx.fillText('烦躁', padding.left + plotW * 0.25, padding.top + plotH * 0.3)
        ctx.fillText('平静', padding.left + plotW * 0.75, padding.top + plotH * 0.8)
        ctx.fillText('低落', padding.left + plotW * 0.25, padding.top + plotH * 0.8)

        // Axes
        ctx.setStrokeStyle('#E0E0E0')
        ctx.setLineWidth(1 * dpr)
        ctx.beginPath()
        ctx.moveTo(padding.left, padding.top + plotH / 2)
        ctx.lineTo(padding.left + plotW, padding.top + plotH / 2)
        ctx.stroke()
        ctx.beginPath()
        ctx.moveTo(padding.left + plotW / 2, padding.top)
        ctx.lineTo(padding.left + plotW / 2, padding.top + plotH)
        ctx.stroke()

        // Axis labels
        ctx.setFontSize(9 * dpr)
        ctx.setFillStyle('#999')
        ctx.setTextAlign('center')
        ctx.fillText('效价 →', padding.left + plotW / 2, padding.top + plotH + 18 * dpr)
        ctx.save()
        ctx.translate(padding.left - 4 * dpr, padding.top + plotH / 2)
        ctx.rotate(-Math.PI / 2)
        ctx.setTextAlign('center')
        ctx.fillText('激活度', 0, 0)
        ctx.restore()

        // Draw scatter points
        for (var i = 0; i < self.scatterData.length; i++) {
          var pt = self.scatterData[i]
          var px = padding.left + (pt.valence / 10) * plotW
          var py = padding.top + plotH - (pt.arousal / 10) * plotH

          // Color based on valence
          var color
          if (pt.valence >= 7) {
            color = '#10B981'
          } else if (pt.valence >= 5) {
            color = '#FFD93D'
          } else {
            color = '#FF6B9D'
          }

          ctx.beginPath()
          ctx.arc(px, py, 5 * dpr, 0, 2 * Math.PI)
          ctx.setFillStyle(color)
          ctx.setGlobalAlpha(0.7)
          ctx.fill()
          ctx.setGlobalAlpha(1)
        }

        ctx.draw()
      }).exec()
    }
  }
}
</script>

<style scoped>
.trend-container {
  min-height: 100vh;
  background: #F8F8F8;
  padding-bottom: 40rpx;
}

.stats-overview {
  display: flex;
  margin: 24rpx 32rpx;
  background: linear-gradient(135deg, #FF6B9D, #FF8CB3);
  border-radius: 20rpx;
  padding: 28rpx 16rpx;
}

.stat-item {
  flex: 1;
  text-align: center;
}

.stat-value {
  font-size: 36rpx;
  font-weight: 700;
  color: #fff;
  display: block;
}

.stat-label {
  font-size: 22rpx;
  color: rgba(255, 255, 255, 0.8);
  margin-top: 6rpx;
  display: block;
}

.period-tabs {
  display: flex;
  margin: 0 32rpx;
  background: #fff;
  border-radius: 12rpx;
  overflow: hidden;
}

.period-tab {
  flex: 1;
  text-align: center;
  padding: 16rpx 0;
  font-size: 26rpx;
  color: #666;
}

.period-active {
  background: #FF6B9D;
  color: #fff;
  font-weight: 600;
}

/* ===== 图表卡片 ===== */
.chart-card {
  margin: 24rpx 32rpx;
  background: #fff;
  border-radius: 20rpx;
  padding: 28rpx;
  box-shadow: 0 2rpx 12rpx rgba(0, 0, 0, 0.04);
}

.chart-card .card-title {
  font-size: 28rpx;
  font-weight: 600;
  color: #333;
  display: block;
  margin-bottom: 4rpx;
}

.chart-card .card-subtitle {
  font-size: 22rpx;
  color: #999;
  display: block;
  margin-bottom: 16rpx;
}

.line-chart-canvas,
.scatter-canvas {
  width: 100%;
  height: 360rpx;
  border-radius: 12rpx;
  background: #FCFCFC;
}

.calendar-card,
.distribution-card,
.daily-list-card {
  margin: 24rpx 32rpx;
  background: #fff;
  border-radius: 20rpx;
  padding: 28rpx;
  box-shadow: 0 2rpx 12rpx rgba(0, 0, 0, 0.04);
}

.card-title {
  font-size: 28rpx;
  font-weight: 600;
  color: #333;
  display: block;
  margin-bottom: 20rpx;
}

.calendar-grid {
  display: flex;
  flex-wrap: wrap;
}

.calendar-weekday {
  width: 14.28%;
  text-align: center;
  font-size: 22rpx;
  color: #999;
  padding: 10rpx 0;
}

.calendar-day {
  width: 14.28%;
  text-align: center;
  padding: 8rpx 0;
  min-height: 80rpx;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: 8rpx;
}

.calendar-day.has-data {
  cursor: pointer;
}

.is-today {
  border: 2rpx solid #FF6B9D;
  box-sizing: border-box;
}

.day-num {
  font-size: 24rpx;
  color: #333;
}

.day-emoji-small {
  font-size: 20rpx;
  margin-top: 2rpx;
}

.day-score {
  font-size: 18rpx;
  color: #888;
  margin-top: 2rpx;
}

/* 热力图例 */
.heatmap-legend {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12rpx;
  margin-top: 16rpx;
}

.legend-label {
  font-size: 20rpx;
  color: #999;
}

.legend-bar {
  display: flex;
  gap: 2rpx;
  border-radius: 6rpx;
  overflow: hidden;
}

.legend-step {
  width: 24rpx;
  height: 16rpx;
}

/* ===== 情绪分布 ===== */
.distribution-list {
  display: flex;
  flex-direction: column;
  gap: 16rpx;
}

.dist-item {
  display: flex;
  align-items: center;
  gap: 16rpx;
}

.dist-emoji {
  font-size: 32rpx;
  width: 48rpx;
  text-align: center;
}

.dist-label {
  font-size: 24rpx;
  color: #666;
  width: 120rpx;
}

.dist-bar-track {
  flex: 1;
  height: 20rpx;
  background: #F0F0F0;
  border-radius: 10rpx;
  overflow: hidden;
}

.dist-bar-fill {
  height: 100%;
  border-radius: 10rpx;
  transition: width 0.3s;
}

.dist-count {
  font-size: 24rpx;
  color: #999;
  width: 60rpx;
  text-align: right;
}

/* ===== 每日记录 ===== */
.daily-item {
  display: flex;
  align-items: center;
  padding: 16rpx 0;
  border-bottom: 2rpx solid #F5F5F5;
  gap: 16rpx;
}

.daily-date {
  font-size: 24rpx;
  color: #999;
  width: 100rpx;
  flex-shrink: 0;
}

.daily-emoji {
  font-size: 32rpx;
  width: 40rpx;
  text-align: center;
  flex-shrink: 0;
}

.daily-weather {
  font-size: 26rpx;
  color: #666;
  width: 120rpx;
  flex-shrink: 0;
}

.daily-tags {
  display: flex;
  gap: 8rpx;
  flex-wrap: wrap;
}

.daily-tag {
  font-size: 20rpx;
  padding: 4rpx 12rpx;
  border-radius: 12rpx;
  color: #fff;
}

.score-tag { background: #FF6B9D; }
.type-tag { background: #8B5CF6; }
.arousal-tag { background: #3B82F6; }

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 120rpx 32rpx;
}

.empty-icon {
  font-size: 80rpx;
  margin-bottom: 20rpx;
}

.empty-text {
  font-size: 28rpx;
  color: #999;
  margin-bottom: 40rpx;
}

.empty-btn {
  background: #FF6B9D;
  color: #fff;
  padding: 16rpx 60rpx;
  border-radius: 40rpx;
  font-size: 28rpx;
}
</style>