feat(phase-2): add trend chart analysis - grid view of number history

application/admin/controller/History.php

@@ -22,7 +22,7 @@ class History extends Backend
      * 无需额外权限检查的方法（但仍在 admin 模块内，需要 admin 登录）
      * @var array
      */
-    protected $noNeedRight = ['missingNum'];
+    protected $noNeedRight = ['missingNum', 'trendData'];
 
     public function _initialize()
     {
@@ -52,5 +52,25 @@ class History extends Backend
         }
     }
 
+    /**
+     * 获取走势图数据
+     * @return void
+     */
+    public function trendData()
+    {
+        if ($this->request->isAjax()) {
+            $periods = $this->request->get('periods', 30, 'intval');
+            if ($periods < 10 || $periods > 100) {
+                $this->error('期数范围必须在 10-100 之间');
+            }
+            $type = $this->request->get('type', 'all');
+            if (!in_array($type, ['all', 'special'])) {
+                $this->error('查询类型不正确');
+            }
+            $result = $this->model->getTrendData($periods, $type);
+            $this->success('查询成功', null, $result);
+        }
+    }
+
 
 }

application/admin/lang/zh-cn/history.php

@@ -15,4 +15,6 @@ return [
     'Query Type' => '查询类型',
     'All Numbers' => '全部号码',
     'Special Only' => '仅特码',
+    'Trend Chart' => '走势图',
+    'No data available' => '暂无数据',
 ];

application/admin/model/History.php

@@ -30,6 +30,56 @@ class History extends Model
 
     ];
 
+    /**
+     * 获取走势图数据
+     * @param int $periods 查询最近多少期
+     * @param string $type 查询类型 all=全部号码 special=仅特码
+     * @return array {expects: [], data: [[num1,...], ...], colorMap: []}
+     */
+    public function getTrendData($periods = 30, $type = 'all')
+    {
+        // 查询波色映射
+        $num_model = new Num();
+        $colorMap = $num_model->column('color', 'num');
+
+        $history = $this
+            ->field('expect,num1,num2,num3,num4,num5,num6,num7,openTime')
+            ->order('openTime', 'asc')
+            ->limit($periods)
+            ->select();
+
+        if (empty($history)) {
+            return ['expects' => [], 'data' => [], 'colorMap' => []];
+        }
+
+        $expects = [];
+        $data = [];
+        foreach ($history as $row) {
+            $expects[] = (string)$row['expect'];
+            if ($type === 'special') {
+                $num = (int)$row['num7'];
+                $data[] = [
+                    'num7' => $num,
+                    'num7_color' => isset($colorMap[$num]) ? $colorMap[$num] : '—'
+                ];
+            } else {
+                $row_data = [];
+                for ($i = 1; $i <= 7; $i++) {
+                    $num = (int)$row['num' . $i];
+                    $row_data['num' . $i] = $num;
+                    $row_data['num' . $i . '_color'] = isset($colorMap[$num]) ? $colorMap[$num] : '—';
+                }
+                $data[] = $row_data;
+            }
+        }
+
+        return [
+            'expects' => $expects,
+            'data' => $data,
+            'colorMap' => $colorMap
+        ];
+    }
+
     /**
      * 计算遗漏号码
      * @param int $periods 查询最近多少期

application/admin/view/history/index.html

@@ -8,6 +8,7 @@
                     <div id="toolbar" class="toolbar">
                         <a href="javascript:;" class="btn btn-primary btn-refresh" title="{:__('Refresh')}" ><i class="fa fa-refresh"></i> </a>
                         <a href="javascript:;" class="btn btn-warning btn-missingnum" title="{:__('Missing Number Analysis')}"><i class="fa fa-search"></i> {:__('Missing Number Analysis')}</a>
+                        <a href="javascript:;" class="btn btn-info btn-trend" title="{:__('Trend Chart')}"><i class="fa fa-area-chart"></i> {:__('Trend Chart')}</a>
 <!--                        <a href="javascript:;" class="btn btn-success btn-add {:$auth->check('history/add')?'':'hide'}" title="{:__('Add')}" ><i class="fa fa-plus"></i> {:__('Add')}</a>-->
                     </div>
                     <table id="table" class="table table-striped table-bordered table-hover table-nowrap"