<?php

namespace App\Http\Controllers\Admin;

use App\Http\Requests\Admin\UserFetch;
use App\Http\Requests\Admin\UserGenerate;
use App\Http\Requests\Admin\UserUpdate;
use App\Utils\Helper;
use Illuminate\Http\Request;
use App\Http\Controllers\Controller;
use App\Models\Order;
use App\Models\User;
use App\Models\Plan;
use Illuminate\Support\Facades\DB;

class UserController extends Controller
{

    private function filter(Request $request, $builder)
    {
        if ($request->input('filter')) {
            $request->validate([
                'filter' => 'array',
                'filter.*.key' => 'required|in:email,transfer_enable,d,expired_at,uuid,token',
                'filter.*.condition' => 'required|in:>,<,=,>=,<=',
                'filter.*.value' => 'required'
            ]);
            foreach ($request->input('filter') as $filter) {
                if ($filter['key'] === 'email' && $filter['condition'] === '=') {
                    $builder->where($filter['key'], 'like', '%' . $filter['value'] . '%');
                    continue;
                }
                if ($filter['key'] === 'd' || $filter['key'] === 'transfer_enable') {
                    $filter['value'] = $filter['value'] * 1073741824;
                }
                $builder->where($filter['key'], $filter['condition'], $filter['value']);
            }
        }
    }

    public function fetch(UserFetch $request)
    {
        $current = $request->input('current') ? $request->input('current') : 1;
        $pageSize = $request->input('pageSize') >= 10 ? $request->input('pageSize') : 10;
        $sortType = in_array($request->input('sort_type'), ['ASC', 'DESC']) ? $request->input('sort_type') : 'DESC';
        $sort = $request->input('sort') ? $request->input('sort') : 'created_at';
        $userModel = User::orderBy($sort, $sortType);
        $this->filter($request, $userModel);
        $total = $userModel->count();
        $res = $userModel->forPage($current, $pageSize)
            ->get();
        $plan = Plan::get();
        for ($i = 0; $i < count($res); $i++) {
            for ($k = 0; $k < count($plan); $k++) {
                if ($plan[$k]['id'] == $res[$i]['plan_id']) {
                    $res[$i]['plan_name'] = $plan[$k]['name'];
                }
            }
        }
        return response([
            'data' => $res,
            'total' => $total
        ]);
    }

    public function getUserInfoById(Request $request)
    {
        if (empty($request->input('id'))) {
            abort(500, '参数错误');
        }
        return response([
            'data' => User::find($request->input('id'))
        ]);
    }

    public function update(UserUpdate $request)
    {
        $params = $request->validated();
        $user = User::find($request->input('id'));
        if (!$user) {
            abort(500, '用户不存在');
        }
        if (User::where('email', $params['email'])->first() && $user->email !== $params['email']) {
            abort(500, '邮箱已被使用');
        }
        if (isset($params['password'])) {
            $params['password'] = password_hash($params['password'], PASSWORD_DEFAULT);
            $params['password_algo'] = NULL;
        } else {
            unset($params['password']);
        }
        if (isset($params['plan_id'])) {
            $plan = Plan::find($params['plan_id']);
            if (!$plan) {
                abort(500, '订阅计划不存在');
            }
            $params['group_id'] = $plan->group_id;
        }

        try {
            $user->update($params);
        } catch (\Exception $e) {
            abort(500, '保存失败');
        }
        return response([
            'data' => true
        ]);
    }

    public function dumpCSV(Request $request)
    {
        $userModel = User::orderBy('id', 'asc');
        $this->filter($request, $userModel);
        $res = $userModel->get();
        $plan = Plan::get();
        for ($i = 0; $i < count($res); $i++) {
            for ($k = 0; $k < count($plan); $k++) {
                if ($plan[$k]['id'] == $res[$i]['plan_id']) {
                    $res[$i]['plan_name'] = $plan[$k]['name'];
                }
            }
        }

        $data = "邮箱,余额,推广佣金,总流量,剩余流量,套餐到期时间,订阅计划,订阅地址\r\n";
        $baseUrl = config('v2board.subscribe_url', config('v2board.app_url', env('APP_URL')));
        foreach($res as $user) {
            $expireDate = $user['expired_at'] === NULL ? '长期有效' : date('Y-m-d H:i:s', $user['expired_at']);
            $balance = $user['balance'] / 100;
            $commissionBalance = $user['commission_balance'] / 100;
            $transferEnable = $user['transfer_enable'] ? $user['transfer_enable'] / 1073741824 : 0;
            $notUseFlow = (($user['transfer_enable'] - ($user['u'] + $user['d'])) / 1073741824) ?? 0;
            $planName = $user['plan_name'] ?? '无订阅';
            $subscribeUrl = $baseUrl . '/api/v1/client/subscribe?token=' . $user['token'];
            $data .= "{$user['email']},{$balance},{$commissionBalance},{$transferEnable},{$notUseFlow},{$expireDate},{$planName},{$subscribeUrl}\r\n";
        }
        echo $data;
    }

    public function generate(UserGenerate $request)
    {
        if ($request->input('email_prefix')) {
            if ($request->input('plan_id')) {
                $plan = Plan::find($request->input('plan_id'));
                if (!$plan) {
                    abort(500, '订阅计划不存在');
                }
            }
            $user = [
                'email' => $request->input('email_prefix') . '@' . $request->input('email_suffix'),
                'plan_id' => isset($plan->id) ? $plan->id : NULL,
                'group_id' => isset($plan->group_id) ? $plan->group_id : NULL,
                'transfer_enable' => isset($plan->transfer_enable) ? $plan->transfer_enable * 1073741824 : 0,
                'expired_at' => $request->input('expired_at') ?? NULL,
                'uuid' => Helper::guid(true),
                'token' => Helper::guid()
            ];
            $user['password'] = password_hash($request->input('password') ?? $user['email'], PASSWORD_DEFAULT);
            if (!User::create($user)) {
                abort(500, '生成失败');
            }
            return response([
                'data' => true
            ]);
        }
        if ($request->input('count')) {
            $this->multiGenerate($request);
        }
    }

    private function multiGenerate(Request $request)
    {
        if ($request->input('plan_id')) {
            $plan = Plan::find($request->input('plan_id'));
            if (!$plan) {
                abort(500, '订阅计划不存在');
            }
        }
        $users = [];
        for ($i = 0;$i < $request->input('count');$i++) {
            $user = [
                'email' => Helper::randomChar(6) . '@' . $request->input('email_suffix'),
                'plan_id' => isset($plan->id) ? $plan->id : NULL,
                'group_id' => isset($plan->group_id) ? $plan->group_id : NULL,
                'transfer_enable' => isset($plan->transfer_enable) ? $plan->transfer_enable * 1073741824 : 0,
                'expired_at' => $request->input('expired_at') ?? NULL,
                'uuid' => Helper::guid(true),
                'token' => Helper::guid(),
                'created_at' => time(),
                'updated_at' => time()
            ];
            $user['password'] = password_hash($request->input('password') ?? $user['email'], PASSWORD_DEFAULT);
            array_push($users, $user);
        }
        DB::beginTransaction();
        if (!User::insert($users)) {
            DB::rollBack();
            abort(500, '生成失败');
        }
        DB::commit();
        $data = "账号,密码,过期时间,UUID,创建时间,订阅地址\r\n";
        $baseUrl = config('v2board.subscribe_url', config('v2board.app_url', env('APP_URL')));
        foreach($users as $user) {
            $expireDate = $user['expired_at'] === NULL ? '长期有效' : date('Y-m-d H:i:s', $user['expired_at']);
            $createDate = date('Y-m-d H:i:s', $user['created_at']);
            $password = $request->input('password') ?? $user['email'];
            $subscribeUrl = $baseUrl . '/api/v1/client/subscribe?token=' . $user['token'];
            $data .= "{$user['email']},{$password},{$expireDate},{$user['uuid']},{$createDate},{$subscribeUrl}\r\n";
        }
        echo $data;
    }
}