<?php

namespace App\Livewire;

use App\Services\LearningAnalyticsService;
use App\Models\User;
use Illuminate\Support\Facades\DB;
use Livewire\Component;

class MasteryHeatmap extends Component
{
    public string $studentId;
    public array $heatmapData = [];
    public bool $loading = false;
    public string $error = '';

    protected LearningAnalyticsService $laService;

    public function mount($studentId)
    {
        $this->studentId = $studentId;
        $this->laService = app(LearningAnalyticsService::class);
        $this->loadHeatmapData();
    }

    public function loadHeatmapData()
    {
        $this->loading = true;
        $this->error = '';

        try {
            $masteryData = $this->laService->getStudentMastery($this->studentId) ?: [];
            $knowledgePoints = $masteryData['data'] ?? [];

            // 构建热力图数据
            $this->heatmapData = array_map(function($kp) {
                $mastery = ($kp['mastery_level'] ?? 0) * 100;
                
                // 根据掌握度分配颜色
                if ($mastery >= 80) {
                    $color = '#10b981'; // green-500
                    $bgClass = 'bg-green-500';
                } elseif ($mastery >= 60) {
                    $color = '#3b82f6'; // blue-500
                    $bgClass = 'bg-blue-500';
                } elseif ($mastery >= 40) {
                    $color = '#f59e0b'; // yellow-500
                    $bgClass = 'bg-yellow-500';
                } elseif ($mastery >= 20) {
                    $color = '#f97316'; // orange-500
                    $bgClass = 'bg-orange-500';
                } else {
                    $color = '#ef4444'; // red-500
                    $bgClass = 'bg-red-500';
                }

                return [
                    'code' => $kp['kp_code'],
                    'name' => $kp['kp_name'] ?? $kp['kp_code'],
                    'mastery' => round($mastery, 1),
                    'total_attempts' => $kp['total_attempts'] ?? 0,
                    'correct_attempts' => $kp['correct_attempts'] ?? 0,
                    'color' => $color,
                    'bgClass' => $bgClass,
                ];
            }, $knowledgePoints);

        } catch (\Exception $e) {
            $this->error = '加载热力图数据失败: ' . $e->getMessage();
            \Log::error('MasteryHeatmap load error', [
                'student_id' => $this->studentId,
                'error' => $e->getMessage()
            ]);
        } finally {
            $this->loading = false;
        }
    }

    public function render()
    {
        return view('livewire.mastery-heatmap');
    }
}