<?php

namespace App\Models;

use foo\bar;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Log;

const LINK_TYPE_URL = "url";


class ActionBar extends Model
{
    protected $table = "action_bars";
    public $timestamps = false;
    protected $fillable = ["parent", "icon", "link_type", "link", "name", "description"];

    /**
     * @param array $params
     * parent ActionBar 的上一级id
     * icon ActionBar的图标
     * link_type ActionBar的时间类型，当期只有url跳转
     * link 根据link_type需要的数据，当前为url，也可以是页面上的某个id
     * name ActionBar的名字
     * description ActionBar的的描述
     *
     * @param array $params
     * @return array
     */
    public function AddActionBar(array $params)
    {
        if ($params["name"] == "") {
            return ["code" => EMPTY_ACTION_BAR_NAME];
        }

        if ($this->parent < 0) {
            return ["code" => INVALID_ACTION_PARENT];
        }
        if ($this->link_type == "") {
            $this->link_type = LINK_TYPE_URL;
        }

        $name = $params["name"];
        $result = $this->firstOrCreate(["name" => $name], $params);
        unset($result["is_del"]);
        unset($result["created_user_id"]);
        unset($result["updated_user_id"]);
        return ["code" => SUCCESS, "data" => $result];
    }


    /**
     * 根据菜单的id更新一个菜单内容
     *
     * @param array $params
     * @return string
     */
    public function ModifyActionBar(array $params)
    {
        $update = [];
        $id = $params["id"];
        if ($id == "") {
            return EMPTY_ACTION_BAR_ID;
        }
        if ($params["parent"] > 0) {
            $update["parent"] = $params["parent"];
        }
        if (strlen($params["icon"]) > 0) {
            $update["icon"] = $params["icon"];
        }
        if (strlen($params["link_type"]) > 0) {
            $update["link_type"] = $params["link_type"];
        }
        if (strlen($params["link"]) > 0) {
            $update["link"] = $params["link"];
        }
        if (strlen($params["name"]) > 0) {
            Log::debug("name is " . $params["name"]);
            $update["name"] = $params["name"];
        }
        if (strlen($params["description"]) > 0) {
            $update["description"] = $params["description"];
        }
        if (count($update) == 0) {
            return NOTHING_UPDATE;
        }

        // check the data if exist in system.
        $actionBar = $this->where("id", $id)->where("is_del", false)->first();
        if (!$actionBar) {
            return INVALID_ACTION_BAR_ID;
        }

        $this->where("id", $id)->where("is_del", false)->update($update);
        return SUCCESS;
    }

    /**
     * 删除一个菜单项目，这里存在一个问题，就是如果删除上层的菜单，下层的菜单也应该都被删掉。但是可以通过parent来控制
     * 下层菜单不被加载出来
     *
     * @param array $params
     * @return int
     */
    public function DeleteActionBar(array $params)
    {
        $id = $params["id"];
        if ($id < 1) {
            return EMPTY_ACTION_BAR_ID;
        }
        $row = $this->where("id", $id)->where("is_del", false)->update(["is_del" => true]);
        if ($row == 0) {
            return INVALID_ACTION_BAR_ID;
        }
        return SUCCESS;
    }

    /**
     * 列出所有的菜单数据
     *
     * @param array $ids
     * @param bool $isAll
     * @param array $selector
     * @return array
     */
    public function ListActionBar(array $ids, bool $isAll, array $selector)
    {
        if (count($ids) < 1 && !$isAll) {
            return [];
        }
        $opera = $this->select($selector);
        if (!$isAll) {
            $opera = $opera->whereIn("id", $ids);
        }
        $data = $opera->where("is_del", false)->orderBy("id", "asc")->get();
        return $data;
    }

    public function ListActionBar_KV(array $ids, bool $isAll, array $selector)
    {
        $bars = $this->ListActionBar($ids, $isAll, $selector);
        if (count($bars) == 0) {
            return [];
        }
        $result = [];
        foreach ($bars as $bar) {
            $result[$bar["id"]] = $bar;
        }
        return $result;
    }


    /**
     * 将菜单数据重新组合成有层级的数据,将不同等级的菜单放进多维数组里。
     * parent=0的放在第一级。
     *
     * @param array $ids
     * @param bool $isAll
     * @return array
     */
    public function LoadActionBarByIds_Format(array $ids, bool $isAll)
    {
        if (count($ids) < 1 && !$isAll) {
            return [];
        }
        $opera = $this->select("id", "parent", "name", "description", "icon", "link_type", "link", "status");
        if (!$isAll) {
            $opera = $opera->whereIn("id", $ids);
        }
        $bars = $opera->orderBy("parent", "asc")->orderBy("id", "asc")->where("is_del", false)->get();

        $result = $this->AssembleBars(json_decode(json_encode($bars), true));
        return $result;
    }

    /**
     * 把actionBar根据parent组成成有上下级层次的结构，起始 parent 为 0。
     * 这里存在的问题是，返回出去的数据，如果只有一个key，并且key为0时，
     * 数据会是一个array，所以外层调用的地方有必要时可以强制转为object，如：
     * 当渴望的数据是：
    {
        "1":{
            "0":[
                {
                    "id":1,
                    "parent":0,
                    "name":"abdfdf",
                    "description":null,
                    "icon":"hhhe",
                    "link_type":null,
                    "link":null
                }
            ]
        }
    }
     * 得到的却是：
    {
        "1":[
                [
                    {
                    "id":1,
                    "parent":0,
                    "name":"abdfdf",
                    "description":null,
                    "icon":"hhhe",
                    "link_type":null,
                    "link":null
                    }
                ]
        ]
    }
     *
     * @param array $bars
     * @return array
     */
    public function AssembleBars(array $bars)
    {
        // 开始将菜单数据重新组合成有层级的数据
        $tmpRes = [];
        foreach ($bars as $bar) {
            $parent = $bar["parent"];
            if (!key_exists($parent, $tmpRes)) {
                $tmpRes[$parent] = [];
            }
            $arr = $tmpRes[$parent];
            array_push($arr, $bar);
            $tmpRes[$parent] = $arr;
        }
        // 消除没有上层的菜单，或者消除上层菜单无效的菜单数据
        $result = [];
        $this->ClearInvalidActionBars(["0"], $tmpRes, $result);
        return $result;
    }

    /**
     * 消除没有上层的菜单，或者消除上层菜单无效的菜单数据
     *
     * @param array $ids
     * @param array $data
     * @param $newData
     */
    private function ClearInvalidActionBars(array $ids, array $data, &$newData)
    {
        if (count($ids) == 0) {
            return;
        }
        $newIds = [];
        foreach ($ids as $id) {
            if (!key_exists($id, $data)) {
                continue;
            }
            $newData[$id] = $data[$id];
            $bars = $data[$id];
            foreach ($bars as $bar) {
                array_push($newIds, $bar["id"]);
            }
        }
        $this->ClearInvalidActionBars($newIds, $data, $newData);
        return;
    }
}