<?php
namespace App\Domains\Account\Services;

use App\Dicts;
use App\Core\Service;
use Illuminate\Support\Str;
use App\Events\FileUploadEvent;
use App\Models\Account\Account;
use Illuminate\Validation\Rule;
use Illuminate\Http\UploadedFile;
use Illuminate\Support\Facades\DB;
use App\Exceptions\NotExistException;
use Illuminate\Support\Facades\Event;
use Illuminate\Support\Facades\Validator;
use App\Exceptions\InvalidArgumentException;
use App\Domains\Permission\Services\RoleService;
use App\Domains\Account\Repositories\AccountRepository;
use App\Domains\Permission\Repositories\RoleRepository;
use Dipper\JWTAuth\ServiceContract as JwtServiceContract;

class AccountService extends Service implements JwtServiceContract
{
    protected $accountRepository;
    protected $dicts;
    protected $account;

    /**
     * 构造函数
     *
     * @return void
     */
    public function __construct(AccountRepository $accountRepository, Dicts $dicts)
    {
        $this->accountRepository = $accountRepository;
        $this->dicts = $dicts;
    }

    /**
     * 获取用户
     *
     * @param string|int $key
     * @param boolean $force
     * @return void
     */
    public function fetch($key, $force = false): ?Account
    {
        if ($force) {
            $this->accountRepository->forgetCached();
        }

        $account = $this->accountRepository->fetch($key);

        return $account;
    }

    /**
     * 账号列表
     *
     * @param array $conditions
     * @return mixed
     */
    public function index(array $conditions = [])
    {
        $limit = $conditions['limit'] ?? 20;

        $accounts = $this->accountRepository->withConditions($conditions)->applyConditions()->paginate($limit);

        return $accounts;
    }

    /**
     * 存储账号
     *
     * @param array $attributes
     * @param Account $parent
     * @return Account
     */
    public function store(array $attributes = [])
    {
        $attributes = array_only($attributes, array_merge(app(Account::class)->getFillable(), ['parent_id', 'role_id', 'avatar']));

        $rule = [
            'username' => ['username', 'between:2,12', Rule::unique($this->accountRepository->getTable(), 'username')->ignore($attributes['id']), Rule::notIn(config('domain.account.reserved_account'))],
            'nickname' => ['string', 'display_length:2,32'],
            'mobile' => ['string', 'cn_phone', Rule::unique($this->accountRepository->getTable(), 'mobile')->ignore($attributes['id'])],
            'email' => ['string', 'email', Rule::unique($this->accountRepository->getTable(), 'email')->ignore($attributes['id'])],
            'password' => ['string'],
            'avatar' => ['image'],
        ];

        $message = [
            'username.required' => '请输入用户名',
            'username.between' => '用户名只能以非特殊字符和数字开头，不能包含特殊字符',
            'username.display_length' => '用户名长度不合法',
            'username.unique' => '用户名已经被其他用户所使用',
            'username.not_in' => '系统保留用户名，禁止使用',
            'nickname.display_length' => '昵称长度不合法',
            'mobile.unique' => '手机号已被其他用户使用',
            'password.required' => '请输入密码',
            'password.string' => '密码格式不合法',
        ];

        if (!$attributes['id']) {
            $rule['password'][] = 'required';
            $rule['username'][] = 'required';
        }

        Validator::validate($attributes, $rule, $message);

        if ($attributes['parent_id']) {
            $parent = $this->accountRepository->find($attributes['parent_id']);
        }

        DB::beginTransaction();

        if ($attributes['password']) {
            $attributes['salt'] = Str::random(6);
            $attributes['password'] = md5($attributes['password'].$attributes['salt']);
        }

        if (!$attributes['id']) {
            $attributes['status'] = $attributes['status'] === 2 ? 2 : 1;
            $node = $this->accountRepository->create($attributes, $parent);
        }

        if ($attributes['id']) {
            unset($attributes['username']);

            $node = $this->accountRepository->find($attributes['id']);

            if (!$node) {
                throw new NotExistException('用户不存在');
            }

            if ($parent && $parentid != $node->getParentId()) {
                $node->appendToNode($parent);
            }

            $this->accountRepository->setModel($node)->update($attributes);
        }

        try {
            if (($avatar = $attributes['avatar']) && $avatar instanceof UploadedFile) {
                Event::fire(new FileUploadEvent($avatar, [
                    'filename' => $this->generateAvatarPath($node->id),
                    'type' => 'account/avatar',
                    'typeid' => $node->id,
                    'cover' => true,
                ], $disk = 'data'));

                $node->avatar = account_avatar($node->id, $node->updated_at, 128);
            }

            if ($attributes['role_id']) {
                $role = app(RoleRepository::class)->findById($attributes['role_id']);

                app(RoleService::class)->syncRoles($node, $role);
            }

            DB::commit();
        } catch (\Exception $e) {
            DB::rollBack();
            throw $e;
        }
        
        return $node;
    }

    /**
     * 删除
     *
     * @return bool
     */
    public function destroy($ids)
    {
        $ids = is_array($ids) ? $ids : [$ids];

        $this->accountRepository->destroy($ids);

        return true;
    }
    
    /**
     * 头像路径
     */
    public static function generateAvatarPath($accountId)
    {
        return '/account/avatar/' . sha1($accountId . 'avatar').'.jpg';
    }
}