<?php

namespace App\Filament\Pages;

use App\Services\QuestionServiceApi;
use BackedEnum;
use Filament\Actions;
use Filament\Notifications\Notification;
use Filament\Pages\Page;
use UnitEnum;
use Livewire\Attributes\Computed;
use Livewire\Attributes\On;

class PromptManagement extends Page
{
    protected static string|BackedEnum|null $navigationIcon = 'heroicon-o-chat-bubble-left-right';

    protected static string|UnitEnum|null $navigationGroup = '题库系统';

    protected static ?string $navigationLabel = '提示词管理';

    protected static ?int $navigationSort = 3;

    protected ?string $heading = '提示词管理';

    protected string $view = 'filament.pages.prompt-management';

    public ?string $selectedType = null;

    public ?string $search = null;

    public int $currentPage = 1;

    public int $perPage = 10;

    public array $selectedPrompts = [];

    /**
     * 获取提示词列表
     */
    public function getPrompts(): array
    {
        $service = app(QuestionServiceApi::class);

        try {
            // 获取所有提示词
            $prompts = $service->listPrompts();

            // 筛选
            if ($this->selectedType) {
                $prompts = array_filter($prompts, fn($prompt) =>
                    $prompt['template_type'] === $this->selectedType
                );
            }

            if ($this->search) {
                $searchTerm = strtolower($this->search);
                $prompts = array_filter($prompts, fn($prompt) =>
                    str_contains(strtolower($prompt['template_name']), $searchTerm) ||
                    str_contains(strtolower($prompt['description']), $searchTerm)
                );
            }

            // 分页
            $total = count($prompts);
            $offset = ($this->currentPage - 1) * $this->perPage;
            $paginated = array_slice($prompts, $offset, $this->perPage);

            return [
                'data' => $paginated,
                'meta' => [
                    'page' => $this->currentPage,
                    'per_page' => $this->perPage,
                    'total' => $total,
                    'total_pages' => (int) ceil($total / $this->perPage),
                ]
            ];
        } catch (\Exception $e) {
            \Log::error('Failed to fetch prompts: ' . $e->getMessage());
            return ['data' => [], 'meta' => ['total' => 0]];
        }
    }

    /**
     * 获取提示词类型统计
     */
    public function getTypeStats(): array
    {
        $service = app(QuestionServiceApi::class);

        try {
            $prompts = $service->listPrompts();
            $stats = [];

            foreach ($prompts as $prompt) {
                $type = $prompt['template_type'];
                if (!isset($stats[$type])) {
                    $stats[$type] = 0;
                }
                $stats[$type]++;
            }

            return $stats;
        } catch (\Exception $e) {
            \Log::error('Failed to fetch prompt stats: ' . $e->getMessage());
            return [];
        }
    }

    /**
     * 获取所有类型选项
     */
    public function getTypeOptions(): array
    {
        return [
            '题目生成' => '题目生成',
            '掌握度评估' => '掌握度评估',
            '技能熟练度' => '技能熟练度',
            '质量审核' => '质量审核',
        ];
    }

    /**
     * 筛选更新
     */
    public function updatedSelectedType(): void
    {
        $this->currentPage = 1;
    }

    public function updatedSearch(): void
    {
        $this->currentPage = 1;
    }

    public function updatedPerPage(): void
    {
        $this->currentPage = 1;
    }

    /**
     * 跳转到指定页
     */
    public function gotoPage(int $page): void
    {
        $this->currentPage = $page;
    }

    /**
     * 上一页
     */
    public function previousPage(): void
    {
        if ($this->currentPage > 1) {
            $this->currentPage--;
        }
    }

    /**
     * 下一页
     */
    public function nextPage(): void
    {
        $totalPages = $this->prompts['meta']['total_pages'] ?? 1;
        if ($this->currentPage < $totalPages) {
            $this->currentPage++;
        }
    }

    /**
     * 创建新提示词
     */
    #[On('create-prompt')]
    public function createPrompt(): void
    {
        Notification::make()
            ->title('创建提示词')
            ->body('打开创建表单')
            ->info()
            ->send();
    }

    /**
     * 编辑提示词
     */
    #[On('edit-prompt')]
    public function editPrompt(array $prompt): void
    {
        Notification::make()
            ->title('编辑提示词：' . $prompt['template_name'])
            ->body('打开编辑表单')
            ->info()
            ->send();
    }

    /**
     * 删除提示词
     */
    #[On('delete-prompt')]
    public function deletePrompt(string $promptName): void
    {
        Notification::make()
            ->title('删除提示词：' . $promptName)
            ->body('此操作不可恢复')
            ->danger()
            ->send();
    }

    /**
     * 启用/禁用提示词
     */
    #[On('toggle-prompt')]
    public function togglePrompt(string $promptName, bool $isActive): void
    {
        $status = $isActive ? '禁用' : '启用';
        Notification::make()
            ->title($status . '提示词：' . $promptName)
            ->success()
            ->send();
    }

    /**
     * 复制提示词
     */
    #[On('duplicate-prompt')]
    public function duplicatePrompt(array $prompt): void
    {
        Notification::make()
            ->title('复制提示词：' . $prompt['template_name'])
            ->success()
            ->send();
    }

    /**
     * 刷新数据
     */
    #[On('refresh-prompts')]
    public function refreshPrompts(): void
    {
        Notification::make()
            ->title('数据已刷新')
            ->success()
            ->send();
    }

    /**
     * 头部操作
     */
    protected function getHeaderActions(): array
    {
        return [
            Actions\Action::make('create')
                ->label('新建提示词')
                ->icon('heroicon-m-plus')
                ->color('success')
                ->action('createPrompt'),

            Actions\Action::make('refresh')
                ->label('刷新')
                ->icon('heroicon-m-arrow-path')
                ->color('warning')
                ->action('refreshPrompts'),
        ];
    }
}