<?php

namespace App\Http\Controllers\Admin;

use App\Filters\CouponFilter;
use App\Http\Requests\CouponRequest;
use App\Http\Resources\CouponResource;
use App\Models\AdminMerchant;
use App\Models\Coupon;
use App\Models\CouponsUserBag;
use App\Models\User;
use App\Utils\Admin;
use App\Utils\QiNiuUpload;
use Carbon\Carbon;
use Illuminate\Http\Request;
use App\Http\Controllers\Controller;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Log;

class CouponController extends Controller
{
    /**
     * Display a listing of the resource.
     *
     * @param CouponFilter $filter
     * @param Request $request
     * @return \Illuminate\Http\JsonResponse
     */
    public function index(CouponFilter $filter, Request $request)
    {
        //
        $coupons = Coupon::query()->filter($filter)->where(AdminMerchant::getMerchantWhere())->orderByDesc('id');

        $coupons = empty($request->get('all')) ? $coupons->paginate() : $coupons->where('grant_start_at', '<', Carbon::now())
            ->where('grant_end_at', '>', Carbon::now())->get();

        return $this->ok(CouponResource::collection($coupons));
    }

    /**
     * Show the form for creating a new resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function create()
    {
        //
    }

    /**
     * store
     *
     * @param CouponRequest $couponRequest
     * @param Coupon $coupon
     * @return \Illuminate\Http\JsonResponse
     * @author Fx
     *
     */
    public function store(CouponRequest $couponRequest, Coupon $coupon)
    {
        //
        $inputs = $couponRequest->validated();
        $inputs['grant_start_at'] = Carbon::make($inputs['grant_start_at'])->format('Y-m-d H:i:s');
        $inputs['grant_end_at'] = Carbon::make($inputs['grant_end_at'])->format('Y-m-d H:i:s');
        $inputs['valid_start_time'] = Carbon::make($inputs['valid_start_time'])->format('Y-m-d H:i:s');
        $inputs['valid_end_time'] = Carbon::make($inputs['valid_end_time'])->format('Y-m-d H:i:s');
        $inputs['admin_id'] = Admin::user()->id;
        $inputs['merchant_id'] = AdminMerchant::putMerchantId();
        $coupon = $coupon->create($inputs);
        return $this->ok(CouponResource::make($coupon));
    }

    /**
     * Display the specified resource.
     *
     * @param int $id
     * @return \Illuminate\Http\Response
     */
    public function show($id)
    {
        //
    }

    /**
     * Show the form for editing the specified resource.
     *
     * @param int $id
     * @return \Illuminate\Http\Response
     */
    public function edit(Coupon $coupon)
    {
        //
        return $this->ok(CouponResource::make($coupon));
    }

    /**
     * Update the specified resource in storage.
     *
     * @param \Illuminate\Http\Request $request
     * @param int $id
     * @return \Illuminate\Http\Response
     */
    public function update(CouponRequest $couponRequest, Coupon $coupon)
    {
        //
        $inputs = $couponRequest->validated();
        $inputs['grant_start_at'] = Carbon::make($inputs['grant_start_at'])->format('Y-m-d H:i:s');
        $inputs['grant_end_at'] = Carbon::make($inputs['grant_end_at'])->format('Y-m-d H:i:s');
        $inputs['valid_start_time'] = Carbon::make($inputs['valid_start_time'])->format('Y-m-d H:i:s');
        $inputs['valid_end_time'] = Carbon::make($inputs['valid_end_time'])->format('Y-m-d H:i:s');
        $inputs['admin_id'] = Admin::user()->id;
        $coupon->update($inputs);
        return $this->ok(CouponResource::make($coupon));
    }

    /**
     * Remove the specified resource from storage.
     *
     * @param int $id
     * @return \Illuminate\Http\Response
     */
    public function destroy(Coupon $coupon)
    {
        //
        $coupon->delete();
        return $this->noContent();
    }

    /**
     * 优惠券图片
     *
     * @return array ['path'=>'上传图片后返回的绝对路径']
     *
     * @author Fx
     * */
    public function uploadImg(Request $request)
    {
        if ($request->hasFile('icon')) {
            $file = $request->file('icon');
            $qiNiuUpload = new QiNiuUpload();
            $path = $qiNiuUpload->upload_image('/coupon/img', $file);
            return $this->ok(['path' => $path]);
        } else {
            return $this->error('文件不存在');
        }

    }

    public function giveCouponToUser(Request $request)
    {
        $mobile = $request->get('mobile') ?? '';
        $coupon_id = $request->get('coupon_id') ?? '';
        $user_id = $request->get('id', 0);
        if (empty($mobile) || !$user_id || empty($coupon_id)) return $this->error('参数错误');

        $users = User::query()->where('id', $user_id)
            ->where('mobile', $mobile)
            ->first();
        if (empty($users)) return $this->error('找不到该用户');
        $coupon = Coupon::query()
            ->where('grant_start_at', '<', Carbon::now())
            ->where('grant_end_at', '>', Carbon::now())
            ->where('status', Coupon::STATUS_OK)
            ->where(AdminMerchant::getMerchantWhere())
            ->find($coupon_id);
        if (empty($coupon)) return $this->error('找不到该优惠券或未到发券时间');

        $valid_end_time = $coupon->valid_end_time;
        switch ($coupon->valid_type) {
            case Coupon::VALID_TYPE_ABSOLUTELY:
                //绝对失效
                break;
            case Coupon::VALID_TYPE_RELATIVE:
                //相对失效
                $valid_end_time = Carbon::now()->addDays($coupon->valid_days)->toDateTimeString();
                break;
            case Coupon::VALID_TYPE_FOR_EVER:
                $valid_end_time = Carbon::now()->addYears(10)->toDateTimeString();
                //永久
                break;
        }

        $data = [
            'coupon_id' => $coupon_id,
            'type' => CouponsUserBag::TYPE_ADMIN_GIVE,
            'user_id' => $users->id,
            'coupons_data' => $coupon->toArray(),
            'coupon_type' => $coupon->type,
            'status' => CouponsUserBag::STATUS_OK,
            'valid_type' => $coupon->valid_type,
            'valid_start_time' => $coupon->valid_start_time,
            'valid_end_time' => $valid_end_time,
            'valid_days' => $coupon->valid_days,
            'grant_start_at' => $coupon->grant_start_at,
            'grant_end_at' => $coupon->grant_end_at,
            'give_admin_id' => Admin::user()->id,
            'order_type' => $coupon->order_type,
            'merchant_id' => $users->merchant_id
        ];
        try {
            DB::beginTransaction();

            CouponsUserBag::create($data);
            $take_count = $coupon->take_count;
            $quota = $coupon->quota;
            if ($coupon->is_quota == Coupon::QUOTA_OK) {
                if ($quota <= $take_count) {
                    DB::rollBack();
                    return $this->error('赠送已达上限，无法继续赠送');
                }
            }
            $coupon->update(['take_count' => ++$take_count]);

            if ($coupon->type === Coupon::TYPE_DEPOSIT_FREE) {
                //免押金卡
                User::query()->where('user_id', $data['user_id'])->update(['is_coupon_deposit_free' => User::IS_COUPON_DEPOSIT_FREE_OK]);
            }
            DB::commit();
            return $this->ok();
        } catch (\Exception $e) {
            Log::error($e->getMessage());
            DB::rollBack();
            return $this->error('赠送错误，请联系管理员');
        }

    }
}