<?php

namespace App\Models;

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

class Dealer extends Model
{
    use HasDateTimeFormatter;

    protected $attributes = [
        'lvl' => DealerLvl::None,
        'is_sale' => true,
        'is_manager' => false,
        'self_sales_value' => 0,
        'team_sales_value' => 0,
    ];

    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',
        'bonds',
        'self_sales_value',
        'team_sales_value',
    ];

    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');
    }

    public function wallet()
    {
        return $this->hasOne(DealerWallet::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');
    }

    /**
     * 属于此经销商的进货补贴
     */
    public function purchaseSubsidies()
    {
        return $this->hasMany(DealerPurchaseSubsidy::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();
    }

    /**
     * 获取直属金牌经销商数量
     *
     * @return int
     */
    public function getDirectGoldDealersCount(): int
    {
        return static::whereHas('userInfo', function ($query) {
            $query->where('inviter_id', $this->user_id);
        })->where('lvl', '>=', DealerLvl::Gold)->count();
    }

    /**
     * 获取直属的特邀经销商数量
     *
     * @return int
     */
    public function getDirectSpecialDealersCount(): int
    {
        return static::whereHas('userInfo', function ($query) {
            $query->where('inviter_id', $this->user_id);
        })->where('lvl', '>=', DealerLvl::Special)->count();
    }

    /**
     * 获取直属的签约经销商数量
     *
     * @return int
     */
    public function getDirectContractedDealersCount(): int
    {
        return static::whereHas('userInfo', function ($query) {
            $query->where('inviter_id', $this->user_id);
        })->where('lvl', '>=', DealerLvl::Contracted)->count();
    }

    /**
     * 获取非直属的签约经销商数量
     *
     * @return int
     */
    public function getIndirectContractedDealersCount(): int
    {
        $path = $this->userInfo->full_path;

        return static::whereHas('userInfo', function ($query) use ($path) {
            $query->where('inviter_id', '!=', $this->user_id)->where('path', 'like', "{$path}%");
        })->where('lvl', '>=', DealerLvl::Contracted)->count();
    }

    /**
     * 获取直属的二级经销商数量
     *
     * @return int
     */
    public function getSecondaryDealersCountOnDifferentLines(): int
    {
        $path = $this->userInfo->full_path;

        $dealers = static::whereHas('userInfo', function ($query) use ($path) {
            $query->where('path', 'like', "{$path}%");
        })->where('lvl', '>=', DealerLvl::Secondary)->get();

        $dealers->load('userInfo:user_id,path');

        $lines = [];

        foreach ($dealers as $dealer) {
            preg_match("#\A{$path}\d+-#", $dealer->userInfo->full_path, $matches);

            $line = $matches[0];

            if (! isset($lines[$line])) {
                $lines[$line] = 1;
            }
        }

        return count($lines);
    }

    /**
     * 尝试升级
     *
     * @return void
     */
    public function attemptUpgrade()
    {
        $lvl = $this->lvl;

        if (in_array($lvl, [DealerLvl::None, DealerLvl::Top])) {
            return;
        }

        $remark = '';

        if ($lvl === DealerLvl::Gold && $this->getDirectGoldDealersCount() >= 5) {
            $lvl = DealerLvl::Special;

            $remark .= '有5个直推金牌';
        }

        if ($lvl === DealerLvl::Special && $this->getDirectSpecialDealersCount() >= 4) {
            $lvl = DealerLvl::Contracted;

            if ($remark !== '') {
                $remark .= ';';
            }

            $remark .= '有4个直推特邀';
        }

        if ($lvl === DealerLvl::Contracted) {
            // 直推签约经销商数量
            $directDealersCount = $this->getDirectContractedDealersCount();
            // 非直推签约经销商数量
            $indirectDealersCount = $this->getIndirectContractedDealersCount();

            if ($directDealersCount >= 5 && $indirectDealersCount >= 4) {
                $lvl = DealerLvl::Secondary;
                $remark .= "有{$directDealersCount}个直推签约，{$indirectDealersCount}个间接签约";
            } elseif ($directDealersCount >= 4 && $indirectDealersCount >= 5) {
                $lvl = DealerLvl::Secondary;
                $remark .= "有{$directDealersCount}个直推签约，{$indirectDealersCount}个间接签约";
            } elseif ($directDealersCount >= 3 && $indirectDealersCount >= 6) {
                $lvl = DealerLvl::Secondary;
                $remark .= "有{$directDealersCount}个直推签约，{$indirectDealersCount}个间接签约";
            }
        }

        if ($lvl === DealerLvl::Secondary && $this->getSecondaryDealersCountOnDifferentLines() >= 4) {
            $lvl = DealerLvl::Top;

            if ($remark !== '') {
                $remark .= ';';
            }

            $remark .= '有4个二级经销商';
        }

        $this->upgrade($lvl, $remark);
    }

    /**
     * 直接升级
     *
     * @param \App\Enums\DealerLvl $lvl
     * @param string|null $remark
     * @return void
     */
    public function upgrade(DealerLvl $lvl, ?string $remark = null)
    {
        if ($this->lvl->value >= $lvl->value) {
            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) {
            $this->userInfo->changeAgentLvl($mapAgentLvl, '经销商享商城权益');
        }
    }

    /**
     * 获取已结算的进货业绩
     *
     * @return string
     */
    public function getArchivedPurchaseAmountAttribute()
    {
        return Cache::remember('dealer_archived_purchase_amount:'.$this->user_id, 3600, function () {
            return $this->purchaseSubsidies()->sum('total_purchase_amount');
        });
    }

    public function canWithdraw()
    {
        return true;
        // $days = app_settings('dealer.withdraw_days', 7);
        // return DealerWalletToBankLog::where('user_id', $this->user_id)->where('created_at', '>', now()->subDays($days))->doesntExist();
    }
}