<?php

namespace App\Filament\Pages;

use App\Models\OCRRecord;
use App\Models\OCRQuestionResult;
use App\Jobs\ProcessOCRRecord;
use Filament\Notifications\Notification;
use Filament\Pages\Page;
use Livewire\Attributes\Computed;

class OCRRecordView extends Page
{
    protected static ?string $title = 'OCR记录详情';
    protected static ?string $slug = 'ocr-record-view/{recordId}';
    protected string $view = 'filament.pages.ocr-record-view-new';

    public static function shouldRegisterNavigation(): bool
    {
        return false;
    }

    public string $recordId = '';
    public array $manualAnswers = [];
    public bool $hasAnalysisResults = false;

    #[Computed]
    public function record(): ?OCRRecord
    {
        return OCRRecord::with(['student', 'questions'])->find($this->recordId);
    }

    public function mount(string $recordId): void
    {
        $this->recordId = $recordId;
        $record = $this->record();
        if ($record) {
            foreach ($record->questions as $question) {
                if ($question->manual_answer) {
                    $this->manualAnswers[$question->id] = $question->manual_answer;
                }
            }

            // 检查是否已有AI分析结果
            $this->checkAnalysisResults($record);
        }
    }

    /**
     * Check if record already has AI analysis results
     */
    private function checkAnalysisResults(OCRRecord $record): void
    {
        $this->hasAnalysisResults = $record->questions()
            ->whereNotNull('ai_score')
            ->orWhereNotNull('ai_feedback')
            ->exists();
    }

    /**
     * Submit all questions for AI analysis.
     * Updates manual answers in batch, then sends data to LearningAnalytics.
     */
    public function submitForAnalysis(): void
    {
        $record = $this->record();
        if (! $record) {
            Notification::make()
                ->title('记录不存在')
                ->danger()
                ->send();
            return;
        }

        $updatedCount = 0;
        foreach ($record->questions as $question) {
            $manualAnswer = $this->manualAnswers[$question->id] ?? null;
            if ($manualAnswer && trim($manualAnswer) !== '') {
                $question->update([
                    'manual_answer'   => trim($manualAnswer),
                    'answer_verified' => true,
                ]);
                $updatedCount++;
            }
        }

        // Call LearningAnalytics API
        $client = new \App\Services\LearningAnalyticsClient();
        $results = $client->analyze($record);
        $aiUpdated = 0;

        // LearningAnalyticsClient已经处理了数据更新，这里只需要更新记录状态
        if (is_array($results) && count($results) > 0) {
            $aiUpdated = count($results);

            // 更新记录状态为已分析
            $record->update([
                'ai_analyzed_at' => now(),
                'ai_analysis_count' => $aiUpdated,
            ]);

            // 重新检查分析结果状态
            $this->checkAnalysisResults($record);
        }

        Notification::make()
            ->title('分析完成')
            ->body("已更新 {$updatedCount} 道题的答案，AI 分析完成 {$aiUpdated} 道题目")
            ->success()
            ->send();
    }

    public function startRecognition(): void
    {
        $record = $this->record();
        if (! $record) {
            Notification::make()
                ->title('记录不存在')
                ->danger()
                ->send();
            return;
        }

        if ($record->status === 'processing') {
            Notification::make()
                ->title('正在处理中')
                ->warning()
                ->send();
            return;
        }

        ProcessOCRRecord::dispatch($record);
        $record->update(['status' => 'processing']);

        Notification::make()
            ->title('开始识别')
            ->body('OCR识别任务已启动，请稍后刷新查看结果')
            ->success()
            ->send();
    }

    public function getStatusBadgeConfig(string $status): array
    {
        return match ($status) {
            'pending'    => ['class' => 'badge-warning', 'text' => '待处理'],
            'processing' => ['class' => 'badge-info',    'text' => '处理中'],
            'completed'  => ['class' => 'badge-success', 'text' => '已完成'],
            'failed'     => ['class' => 'badge-error',   'text' => '失败'],
            default      => ['class' => 'badge-ghost',   'text' => $status],
        };
    }
}