math_cms/app/Filament/Pages/StudentDashboard.php

<?php

namespace App\Filament\Pages;

use App\Services\LearningAnalyticsService;
use BackedEnum;
use Filament\Pages\Page;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Http;
use Illuminate\Support\Facades\Log;
use UnitEnum;
use Livewire\Attributes\Layout;
use Livewire\Attributes\Title;
use Livewire\Attributes\On;

class StudentDashboard extends Page
{
    use \Filament\Pages\Concerns\InteractsWithFormActions;

    protected static string|BackedEnum|null $navigationIcon = 'heroicon-o-chart-bar';

    protected static string|UnitEnum|null $navigationGroup = '操作';

    protected static ?string $navigationLabel = '学生仪表板';

    protected static ?int $navigationSort = 3;

    protected ?string $heading = '学生仪表板';

    protected string $view = 'filament.pages.student-dashboard';

    public string $studentId = '';
    public string $teacherId = '';
    public array $dashboardData = [];
    public bool $isLoading = false;
    public string $errorMessage = '';
    public array $teachers = [];
    public array $students = [];

    public function mount(Request $request): void
    {
        // 加载老师列表
        $this->loadTeachers();

        // 从请求中获取老师ID或使用默认值
        $this->teacherId = $request->input('teacher_id', $this->getDefaultTeacherId());

        // 根据老师ID加载学生列表
        $this->loadStudentsByTeacher();

        // 从请求中获取学生ID或使用默认值
        $this->studentId = $request->input('student_id', $this->getDefaultStudentId());
    }

    /**
     * 获取默认老师ID（列表中的第一个老师）
     */
    private function getDefaultTeacherId(): string
    {
        return !empty($this->teachers) ? $this->teachers[0]->teacher_id : '';
    }

    /**
     * 获取默认学生ID（列表中的第一个学生）
     */
    private function getDefaultStudentId(): string
    {
        return !empty($this->students) ? $this->students[0]->student_id : '';
    }

    /**
     * 从MySQL加载老师列表
     */
    public function loadTeachers(): void
    {
        try {
            // 首先获取teachers表中的老师
            $this->teachers = DB::connection('remote_mysql')
                ->table('teachers as t')
                ->leftJoin('users as u', 't.teacher_id', '=', 'u.user_id')
                ->select(
                    't.teacher_id',
                    't.name',
                    't.subject',
                    'u.username',
                    'u.email'
                )
                ->orderBy('t.name')
                ->get()
                ->toArray();

            // 如果有学生但没有对应的老师记录，添加一个"未知老师"条目
            $teacherIds = array_column($this->teachers, 'teacher_id');
            $missingTeacherIds = DB::connection('remote_mysql')
                ->table('students as s')
                ->distinct()
                ->whereNotIn('s.teacher_id', $teacherIds)
                ->pluck('teacher_id')
                ->toArray();

            if (!empty($missingTeacherIds)) {
                foreach ($missingTeacherIds as $missingId) {
                    $this->teachers[] = (object) [
                        'teacher_id' => $missingId,
                        'name' => '未知老师 (' . $missingId . ')',
                        'subject' => '未知',
                        'username' => null,
                        'email' => null
                    ];
                }

                // 重新排序
                usort($this->teachers, function($a, $b) {
                    return strcmp($a->name, $b->name);
                });
            }
        } catch (\Exception $e) {
            Log::error('加载老师列表失败', [
                'error' => $e->getMessage()
            ]);
            $this->teachers = [];
        }
    }

    /**
     * 根据老师ID加载学生列表
     */
    public function loadStudentsByTeacher(): void
    {
        try {
            if (empty($this->teacherId)) {
                $this->students = [];
                return;
            }

            $this->students = DB::connection('remote_mysql')
                ->table('students as s')
                ->leftJoin('users as u', 's.student_id', '=', 'u.user_id')
                ->where('s.teacher_id', $this->teacherId)
                ->select(
                    's.student_id',
                    's.name',
                    's.grade',
                    's.class_name',
                    'u.username',
                    'u.email'
                )
                ->orderBy('s.name')
                ->get()
                ->toArray();
        } catch (\Exception $e) {
            Log::error('加载学生列表失败', [
                'teacher_id' => $this->teacherId,
                'error' => $e->getMessage()
            ]);
            $this->students = [];
        }
    }

    /**
     * 老师改变时重新加载学生列表
     */
    public function updatedTeacherId(): void
    {
        $this->loadStudentsByTeacher();
        // 清空之前选中的学生ID
        $this->studentId = '';
        // 自动加载第一个学生的数据
        $this->studentId = $this->getDefaultStudentId();
        if (!empty($this->studentId)) {
            $this->loadDashboardData();
        }
    }

    public function loadDashboardData(): void
    {
        $this->isLoading = true;
        $this->errorMessage = '';

        try {
            $service = app(LearningAnalyticsService::class);

            // 检查服务健康状态
            if (!$service->checkHealth()) {
                $this->errorMessage = '学习分析系统当前不可用，请稍后重试';
                $this->isLoading = false;
                return;
            }

            Log::info('开始加载仪表板数据', ['student_id' => $this->studentId]);

            // 获取各项数据
            $masteryOverview = $service->getStudentMasteryOverview($this->studentId);
            $skillProficiency = $service->getStudentSkillProficiency($this->studentId);
            $skillSummary = $service->getStudentSkillSummary($this->studentId);
            $predictions = $service->getStudentPredictions($this->studentId, 5);
            $learningPaths = $service->getStudentLearningPaths($this->studentId, 3);
            $predictionAnalytics = $service->getPredictionAnalytics($this->studentId);
            $pathAnalytics = $service->getLearningPathAnalytics($this->studentId);
            $quickPrediction = $service->quickScorePrediction($this->studentId);

            Log::info('快速预测结果', [
                'student_id' => $this->studentId,
                'quick_prediction' => $quickPrediction
            ]);

            $recommendations = $service->recommendLearningPaths($this->studentId, 3);

            // 组合数据
            $this->dashboardData = [
                'mastery' => [
                    'overview' => $masteryOverview,
                    'list' => $service->getStudentMasteryList($this->studentId),
                ],
                'skill' => [
                    'proficiency' => $skillProficiency,
                    'summary' => $skillSummary,
                ],
                'prediction' => [
                    'list' => $predictions,
                    'analytics' => $predictionAnalytics,
                    'quick' => $quickPrediction,
                ],
                'learning_path' => [
                    'list' => $learningPaths,
                    'analytics' => $pathAnalytics,
                    'recommendations' => $recommendations,
                ],
            ];

            Log::info('仪表板数据加载完成', [
                'student_id' => $this->studentId,
                'dashboard_data_keys' => array_keys($this->dashboardData)
            ]);

        } catch (\Exception $e) {
            $this->errorMessage = '加载数据时发生错误：' . $e->getMessage();
            Log::error('学生仪表板数据加载失败', [
                'student_id' => $this->studentId,
                'error' => $e->getMessage()
            ]);
        } finally {
            $this->isLoading = false;
        }
    }

    public function updatedStudentId(): void
    {
        // 学生ID更新后自动刷新数据
        $this->loadDashboardData();
    }

    public function recalculateMastery(string $kpCode): void
    {
        try {
            $service = app(LearningAnalyticsService::class);
            $result = $service->recalculateMastery($this->studentId, $kpCode);

            if ($result) {
                $this->dispatch('notify', message: '掌握度重新计算完成', type: 'success');
                $this->loadDashboardData(); // 刷新数据
            } else {
                $this->dispatch('notify', message: '掌握度重新计算失败', type: 'danger');
            }
        } catch (\Exception $e) {
            Log::error('重新计算掌握度失败', [
                'student_id' => $this->studentId,
                'kp_code' => $kpCode,
                'error' => $e->getMessage()
            ]);
            $this->dispatch('notify', message: '操作失败：' . $e->getMessage(), type: 'danger');
        }
    }

    public function batchUpdateSkills(): void
    {
        try {
            $service = app(LearningAnalyticsService::class);
            $result = $service->batchUpdateSkillProficiency($this->studentId);

            if ($result) {
                $this->dispatch('notify', message: '技能熟练度更新完成', type: 'success');
                $this->loadDashboardData(); // 刷新数据
            } else {
                $this->dispatch('notify', message: '技能熟练度更新失败', type: 'danger');
            }
        } catch (\Exception $e) {
            Log::error('批量更新技能熟练度失败', [
                'student_id' => $this->studentId,
                'error' => $e->getMessage()
            ]);
            $this->dispatch('notify', message: '操作失败：' . $e->getMessage(), type: 'danger');
        }
    }

    public function generateQuickPrediction(): void
    {
        try {
            $service = app(LearningAnalyticsService::class);
            $result = $service->quickScorePrediction($this->studentId);

            if ($result) {
                $this->dispatch('notify', message: '快速预测生成完成', type: 'success');
                $this->loadDashboardData(); // 刷新数据
            } else {
                $this->dispatch('notify', message: '快速预测生成失败', type: 'danger');
            }
        } catch (\Exception $e) {
            Log::error('生成快速预测失败', [
                'student_id' => $this->studentId,
                'error' => $e->getMessage()
            ]);
            $this->dispatch('notify', message: '操作失败：' . $e->getMessage(), type: 'danger');
        }
    }


    /**
     * 监听TeacherStudentSelector组件的老师变化事件
     */
    #[On('teacherChanged')]
    public function onTeacherChanged(string $teacherId): void
    {
        $this->teacherId = $teacherId;
        $this->loadStudentsByTeacher();
        $this->studentId = $this->getDefaultStudentId();
    }

    /**
     * 监听TeacherStudentSelector组件的学生变化事件
     */
    #[On('studentChanged')]
    public function onStudentChanged(string $teacherId, string $studentId): void
    {
        $this->teacherId = $teacherId;
        $this->studentId = $studentId;
        $this->loadDashboardData();
    }
}