<?php

namespace App\Http\Controllers\V2\Admin;

use App\Http\Controllers\Controller;
use App\Http\Requests\Admin\OrderAssign;
use App\Http\Requests\Admin\OrderUpdate;
use App\Models\Order;
use App\Models\Plan;
use App\Models\User;
use App\Services\OrderService;
use App\Services\PlanService;
use App\Services\UserService;
use App\Utils\Helper;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;

class OrderController extends Controller
{

    public function detail(Request $request)
    {
        $order = Order::with(['user', 'plan', 'commission_log'])->find($request->input('id'));
        if (!$order)
            return $this->fail([400202, '订单不存在']);
        if ($order->surplus_order_ids) {
            $order['surplus_orders'] = Order::whereIn('id', $order->surplus_order_ids)->get();
        }
        $order['period'] = PlanService::getLegacyPeriod($order->period);
        return $this->success($order);
    }

    public function fetch(Request $request)
    {
        $current = $request->input('current', 1);
        $pageSize = $request->input('pageSize', 10);
        $orderModel = Order::with('plan:id,name');
        if ($request->input('is_commission')) {
            $orderModel->whereNotNull('invite_user_id')
                ->whereNotIn('status', [0, 2])
                ->where('commission_balance', '>', 0);
        }
        $this->applyFiltersAndSorts($request, $orderModel);
        $orders = $orderModel
            ->orderBy('created_at', 'desc')
            ->paginate($pageSize, ['*'], 'page', $current);
        return response([
            'data' => $orders->transform(function ($order) {
                $order['period'] = PlanService::getLegacyPeriod($order->period);
                return $order;
            }),
            'total' => $orders->total()
        ]);
    }

    private function applyFiltersAndSorts(Request $request, $builder)
    {
        if ($request->has('filter')) {
            collect($request->input('filter'))->each(callback: function ($filter) use ($builder) {
                $key = $filter['id'];
                $value = $filter['value'];
                $builder->where(function ($query) use ($key, $value) {
                    if (is_array($value)) {
                        $query->whereIn($key, $value);
                    } else {
                        $query->where($key, 'like', "%{$value}%");
                    }
                });
            });
        }

        if ($request->has('sort')) {
            collect($request->input('sort'))->each(function ($sort) use ($builder) {
                $key = $sort['id'];
                $value = $sort['desc'] ? 'DESC' : 'ASC';
                $builder->orderBy($key, $value);
            });
        }
    }

    public function paid(Request $request)
    {
        $order = Order::where('trade_no', $request->input('trade_no'))
            ->first();
        if (!$order) {
            return $this->fail([400202, '订单不存在']);
        }
        if ($order->status !== 0)
            return $this->fail([400, '只能对待支付的订单进行操作']);

        $orderService = new OrderService($order);
        if (!$orderService->paid('manual_operation')) {
            return $this->fail([500, '更新失败']);
        }
        return $this->success(true);
    }

    public function cancel(Request $request)
    {
        $order = Order::where('trade_no', $request->input('trade_no'))
            ->first();
        if (!$order) {
            return $this->fail([400202, '订单不存在']);
        }
        if ($order->status !== 0)
            return $this->fail([400, '只能对待支付的订单进行操作']);

        $orderService = new OrderService($order);
        if (!$orderService->cancel()) {
            return $this->fail([400, '更新失败']);
        }
        return $this->success(true);
    }

    public function update(OrderUpdate $request)
    {
        $params = $request->only([
            'commission_status'
        ]);

        $order = Order::where('trade_no', $request->input('trade_no'))
            ->first();
        if (!$order) {
            return $this->fail([400202, '订单不存在']);
        }

        try {
            $order->update($params);
        } catch (\Exception $e) {
            \Log::error($e);
            return $this->fail([500, '更新失败']);
        }

        return $this->success(true);
    }

    public function assign(OrderAssign $request)
    {
        $plan = Plan::find($request->input('plan_id'));
        $user = User::where('email', $request->input('email'))->first();

        if (!$user) {
            return $this->fail([400202, '该用户不存在']);
        }

        if (!$plan) {
            return $this->fail([400202, '该订阅不存在']);
        }

        $userService = new UserService();
        if ($userService->isNotCompleteOrderByUserId($user->id)) {
            return $this->fail([400, '该用户还有待支付的订单，无法分配']);
        }

        try {
            DB::beginTransaction();
            $order = new Order();
            $orderService = new OrderService($order);
            $order->user_id = $user->id;
            $order->plan_id = $plan->id;
            $order->period = $request->input('period');
            $order->trade_no = Helper::guid();
            $order->total_amount = $request->input('total_amount');

            if ($order->period === 'reset_price') {
                $order->type = Order::TYPE_RESET_TRAFFIC;
            } else if ($user->plan_id !== NULL && $order->plan_id !== $user->plan_id) {
                $order->type = Order::TYPE_UPGRADE;
            } else if ($user->expired_at > time() && $order->plan_id == $user->plan_id) {
                $order->type = Order::TYPE_RENEWAL;
            } else {
                $order->type = Order::TYPE_NEW_PURCHASE;
            }

            $orderService->setInvite($user);

            if (!$order->save()) {
                DB::rollBack();
                return $this->fail([500, '订单创建失败']);
            }
            DB::commit();
        } catch (\Exception $e) {
            DB::rollBack();
            throw $e;
        }

        return $this->success($order->trade_no);
    }
}