<?php

namespace App\Models;

use App\Casts\JsonArray;
use App\Enums\DealerLvl;
use Dcat\Admin\Traits\HasDateTimeFormatter;
use Illuminate\Database\Eloquent\Model;

class Dealer extends Model
{
    use HasDateTimeFormatter;

    protected $attributes = [
        'lvl' => DealerLvl::None,
        'is_sale' => false,
        'is_manager' => false,
    ];

    protected $casts = [
        'lvl' => DealerLvl::class,
        'is_sale' => 'bool',
        'is_manager' => 'bool',
        'pay_info' => JsonArray::class,
        'contracted_lvl_at' => 'datetime',
    ];

    protected $fillable = [
        'user_id',
        'lvl',
        'is_sale',
        'is_manager',
        'pay_info',
        'contracted_lvl_at',
    ];

    public function user()
    {
        return $this->belongsTo(User::class, 'user_id');
    }

    /**
     * 属于此经销商的用户信息
     */
    public function userInfo()
    {
        return $this->hasOne(UserInfo::class, 'user_id', 'user_id');
    }

    /**
     * 属于此经销商的管理者津贴
     */
    public function managerSalesLogs()
    {
        return $this->hasMany(DealerManagerSalesLog::class, 'user_id', 'user_id');
    }

    /**
     * 属于此经销商的管理者津贴
     */
    public function manageSubsidyLogs()
    {
        return $this->hasMany(DealerManageSubsidyLog::class, 'user_id', 'user_id');
    }

    /**
     * 属于此经销商的升级日志
     */
    public function upgradeLogs()
    {
        return $this->hasMany(DealerUpgradeLog::class, 'user_id', 'user_id');
    }

    public function getLvlTextAttribute()
    {
        return $this->lvl->text();
    }

    /**
     * 确认此经销商是否是金牌经销商
     *
     * @return boolean
     */
    public function isGoldDealer()
    {
        return $this->lvl === DealerLvl::Gold;
    }

    /**
     * 确认此经销商是否是特邀经销商
     *
     * @return boolean
     */
    public function isSpecialDealer()
    {
        return $this->lvl === DealerLvl::Special;
    }

    /**
     * 获取此用户的所有上级经销商
     *
     * @return array
     */
    public function getDealers()
    {
        if (empty($pids = $this->userInfo->parent_ids)) {
            return [];
        }

        $ancestors = UserInfo::with(['dealer'])
                            ->whereIn('user_id', $pids)
                            ->latest('depth')
                            ->get(['user_id']);

        return $ancestors->map(function ($item) {
            return $item->dealer;
        })->all();
    }

    /**
     * 获取此用户的所有直属上级经销商
     *
     * @return array
     */
    public function getRealDealers()
    {
        if (empty($pids = $this->userInfo->real_parent_ids)) {
            return [];
        }

        $ancestors = UserInfo::with(['dealer'])
                            ->whereIn('user_id', $pids)
                            ->latest('depth')
                            ->get(['user_id']);

        return $ancestors->map(function ($item) {
            return $item->dealer;
        })->all();
    }

    /**
     * 变更等级
     *
     * @param \App\Enums\DealerLvl $lvl
     * @param string|null $remark
     * @return void
     */
    public function changeLvl(DealerLvl $lvl, ?string $remark = null)
    {
        if ($this->lvl === $lvl) {
            return;
        }

        $before = $this->lvl;

        if ($lvl->value < DealerLvl::Contracted->value) {
            $this->contracted_lvl_at = null;
        } elseif ($lvl->value >= DealerLvl::Contracted->value && $this->contracted_lvl_at === null) {
            $this->contracted_lvl_at = now();
        }

        $this->lvl = $lvl;
        $this->save();

        $this->upgradeLogs()->create([
            'before_lvl' => $before,
            'change_lvl' => $lvl,
            'remark' => $remark,
        ]);

        // 变更代理等级
        $mapAgentLvl = $this->lvl->agentLvl();

        if ($this->userInfo->agent_level < $mapAgentLvl) {
            $this->userInfo->agent_level = $mapAgentLvl;
            $this->userInfo->save();
        }
    }
}