<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Facades\Log;

/**
 * 该类调用时应该在http控制层限制管理员才能调用
 *
 * Class Role
 * @package App\Models
 */
class Role extends Model
{
    protected $table = "roles";
    public $timestamps = false;


    /**
     * 创建一个用户的角色
     *
     * @param array $params
     * @return array
     */
    public function CreateRole(array $params)
    {
        if ($params["description"] == null) {
            $params["description"] = "";
        }
        $this->name = $params["name"];
        $this->description = $params["description"];
        $this->status = "normal";

        if ($this->name == "") {
            return ["code" => EMPTY_ROLE_NAME];
        }
        // check if has the same role name in system.
        $role = $this->where("name", $this->name)->where("is_del", false)->first();
        if ($role) {
            return ["code" => ALREADY_EXIST_ROLE];
        }
        //
        $this->save();
        $params["id"] = $this->getQueueableId();
        return ["code" => SUCCESS, "data" => $params];
    }


    /**
     * 更新用户角色的名字，描述等信息
     *
     * @param array $params
     * @return int
     */
    public function ModifyRole(array $params)
    {
        $update = [];
        $id = $params["id"];
        if ($id == "") {
            return EMPTY_ROLE_ID;
        }
        // check if role exist
        $role = $this->where("id", $id)->where("is_del", false)->first();
        if (!$role) {
            return INVALID_ROLE_ID;
        }

        if ($params["name"] != "") {
            $update["name"] = $params["name"];
        }
        if ($params["description"] != "") {
            $update["description"] = $params["description"];
        }
        if (count($update) == 0) {
            return NOTHING_UPDATE;
        }
        $this->where("id", $id)->where("is_del", false)->update($update);
        return SUCCESS;
    }

    /**
     * 删除一个用户角色
     *
     * @param array $params
     * @return int
     */
    public function DeleteRole(array $params)
    {
        $id = $params["id"];
        if ($id == "") {
            return EMPTY_ROLE_ID;
        }
        $role = $this->where("id", $id)->where("is_del", false)->first();
        if (!$role) {
            return INVALID_ROLE_ID;
        }
        $this->where("id", $id)->where("is_del", false)->update(["is_del" => true]);
        return SUCCESS;
    }

    /**
     * 列出用户角色列表
     *
     * @param array $params
     * @return mixed
     */
    public function ListRole(array $params)
    {
        $page = $params["page"];
        $pageCount = $params["pageCount"];

        if ($page < 1) {
            $page = 1;
        }
        if ($pageCount > 15 || $pageCount < 1) {
            $pageCount = 15;
        }

        $data = $this->select("name", "description")
            ->where("is_del", false)->orderBy("created_at", "asc")
            ->paginate($pageCount, ["*"], "page", $page);
        return $data;
    }

    public function LoadRoleByIds($rids)
    {
        $data = $this->select("id", "name", "description", "status")
            ->whereIn("id", $rids)->where("is_del", false)->get();
        return $data;
    }

    public function LoadRoleByIds_KV($rids)
    {
        $roles = $this->LoadRoleByIds($rids);
        $data = [];
        foreach ($roles as $role){
            $data[$role["id"]] = $role;
        }
        return $data;
    }

    public function LoadRole($uid)
    {
        $roles = $this->where("user_id", $uid)->where("is_del", false)->get();
        if (count($roles) == 0) {
            return ["code" => 0];
        }
        $roleIds = [];
        foreach ($roles as $role) {
            array_push($roleIds, $role["role_id"]);
        }
        return [];
    }

    /**
     * 列出角色下的用户，如果列出指定角色下的用户，可以keyword指定为角色名即可.
     *
     * @param $keyword 根据role的名称来列出，支持模糊搜索
     * @param $page 暂时没用
     * @param $pageCount 暂时没用
     * @return array
     */
    public function LoadRoleUsers($keyword, $page, $pageCount)
    {
//        print $keyword;
//        print $page;
//        print $pageCount;

        // load all roles
        $roleQuery = $this->select("id", "name", "description");
        if ($keyword != "") {
            $roleQuery = $roleQuery->where("name", "like", "%" . $keyword . "%")->where("is_del", false);
        }
        $roles = $roleQuery->get();

        if (count($roles) < 1) {
            return [];
        }

        // load users by role ids.
        $rids = [];
        foreach ($roles as $role) {
            array_push($rids, $role["id"]);
        }

        // load users with roles.
        $roleUsers = new UserRole();
        $users = $roleUsers->LoadUsersWithRoles($rids);

        // return result
        $users["roles"] = $roles;
        return $users;
    }

}