<?php

namespace App\Http\Controllers\Admin;

use App\Jobs\SendEmailJob;
use Illuminate\Http\Request;
use App\Http\Controllers\Controller;
use App\Models\Ticket;
use App\Models\TicketMessage;
use Illuminate\Support\Facades\Cache;
use Illuminate\Support\Facades\DB;

class TicketController extends Controller
{
    public function fetch(Request $request)
    {
        if ($request->input('id')) {
            $ticket = Ticket::where('id', $request->input('id'))
                ->first();
            if (!$ticket) {
                abort(500, '工单不存在');
            }
            $ticket['message'] = TicketMessage::where('ticket_id', $ticket->id)->get();
            for ($i = 0; $i < count($ticket['message']); $i++) {
                if ($ticket['message'][$i]['user_id'] !== $ticket->user_id) {
                    $ticket['message'][$i]['is_me'] = true;
                } else {
                    $ticket['message'][$i]['is_me'] = false;
                }
            }
            return response([
                'data' => $ticket
            ]);
        }
        $current = $request->input('current') ? $request->input('current') : 1;
        $pageSize = $request->input('pageSize') >= 10 ? $request->input('pageSize') : 10;
        $model = Ticket::orderBy('created_at', 'DESC');
        if ($request->input('status') !== NULL) {
            $model->where('status', $request->input('status'));
        }
        $total = $model->count();
        $res = $model->forPage($current, $pageSize)
            ->get();
        for ($i = 0; $i < count($res); $i++) {
            if ($res[$i]['last_reply_user_id'] == $request->session()->get('id')) {
                $res[$i]['reply_status'] = 0;
            } else {
                $res[$i]['reply_status'] = 1;
            }
        }
        return response([
            'data' => $res,
            'total' => $total
        ]);
    }

    public function reply(Request $request)
    {
        if (empty($request->input('id'))) {
            abort(500, '参数错误');
        }
        if (empty($request->input('message'))) {
            abort(500, '消息不能为空');
        }
        $ticket = Ticket::where('id', $request->input('id'))
            ->first();
        if (!$ticket) {
            abort(500, '工单不存在');
        }
        if ($ticket->status) {
            abort(500, '工单已关闭，无法回复');
        }
        DB::beginTransaction();
        $ticketMessage = TicketMessage::create([
            'user_id' => $request->session()->get('id'),
            'ticket_id' => $ticket->id,
            'message' => $request->input('message')
        ]);
        $ticket->last_reply_user_id = $request->session()->get('id');
        if (!$ticketMessage || !$ticket->save()) {
            DB::rollback();
            abort(500, '工单回复失败');
        }
        DB::commit();
        $this->sendEmailNotify($ticket, $ticketMessage);
        return response([
            'data' => true
        ]);
    }

    public function close(Request $request)
    {
        if (empty($request->input('id'))) {
            abort(500, '参数错误');
        }
        $ticket = Ticket::where('id', $request->input('id'))
            ->first();
        if (!$ticket) {
            abort(500, '工单不存在');
        }
        $ticket->status = 1;
        if (!$ticket->save()) {
            abort(500, '关闭失败');
        }
        return response([
            'data' => true
        ]);
    }

    // 半小时内不再重复通知
    private function sendEmailNotify(Ticket $ticket, TicketMessage $ticketMessage)
    {
        $user = User::find($ticket->user_id);
        $cacheKey = 'ticket_sendEmailNotify';
        if (!Cache::get($cacheKey)) {
            Cache::put($cacheKey, 1, 1800);
            SendEmailJob::dispatch([
                'email' => $user->email,
                'subject' => '您在' . config('v2board.app_name', 'V2Board') . '的工单得到了回复',
                'template_name' => 'notify',
                'template_value' => [
                    'name' => config('v2board.app_name', 'V2Board'),
                    'url' => config('v2board.app_url'),
                    'content' => "主题：{$ticket->subject}\r\n回复内容：{$ticketMessage->message}"
                ]
            ]);
        }
    }
}