<?php

namespace console\controllers;

use biz\ghs\classes\GhsClass as BizGhsClass;
use bizGhs\custom\classes\AccountMoneyClass;
use yii\console\Controller;

/**
 * 采购供货商 xhGhs 余额合并（按采购待结订单重算）
 *
 * 【用途】批量处理 ghsApp 采购供货商（ownShopId>0）未 merge 的 xhGhs 行：
 *         净 balance = max(原正余额,0) - 待结采购单 actPrice 合计，debtAmount 清 0。
 * 【与线上一致】调用 AccountMoneyClass::mergeOwnShopGhsBalanceFromPurchaseOrdersIfNeeded。
 *
 * 用法：php yii ghs-purchase-balance-merge/run
 * 预览：php yii ghs-purchase-balance-merge/run --dryRun=1
 * 单户：php yii ghs-purchase-balance-merge/run --ghsId=123
 */
class GhsPurchaseBalanceMergeController extends Controller
{
    /** 1=只预览不写库 */
    public $dryRun = 0;

    /** 指定 xhGhs.id，0=扫全表符合条件的 ownShop 行 */
    public $ghsId = 0;

    public function options($actionID)
    {
        return array_merge(parent::options($actionID), ['dryRun', 'ghsId']);
    }

    /**
     * 执行或预览：按采购待结订单重算 ownShop 供货商净余额。
     */
    public function actionRun()
    {
        $dry = (int)$this->dryRun === 1;
        $ghsId = intval($this->ghsId);
        echo $dry ? "【预览：采购供货商按订单重算余额】\n" : "【执行：采购供货商按订单重算余额】\n";

        if ($ghsId > 0) {
            $count = $this->mergeOneGhs($ghsId, $dry) ? 1 : 0;
            echo "完成：处理 {$count} 条，dryRun=" . ($dry ? '1' : '0') . PHP_EOL;
            return;
        }

        $count = 0;
        $where = ['and', ['>', 'ownShopId', 0]];
        if ($this->columnExists('xhGhs', 'balanceMerged')) {
            $where = ['and', ['>', 'ownShopId', 0], ['balanceMerged' => 0]];
        } else {
            $where = ['and', ['>', 'ownShopId', 0], ['>', 'debtAmount', 0]];
        }

        $list = BizGhsClass::getAllByCondition($where, null, 'id,ownShopId,balance,debtAmount,balanceMerged', null, true);
        foreach ($list as $ghs) {
            if ($this->mergeOneGhs(intval($ghs->id ?? 0), $dry)) {
                $count++;
            }
        }
        echo "完成：处理 {$count} 条，dryRun=" . ($dry ? '1' : '0') . PHP_EOL;
    }

    /**
     * 合并单行；预览模式只打印将写入的金额。
     */
    protected function mergeOneGhs($ghsId, $dry)
    {
        if ($ghsId <= 0) {
            return false;
        }
        $ghs = BizGhsClass::getById($ghsId, true);
        if (empty($ghs)) {
            echo "[跳过] id={$ghsId} 不存在" . PHP_EOL;
            return false;
        }
        $ownShopId = intval($ghs->ownShopId ?? 0);
        if ($ownShopId <= 0) {
            echo "[跳过] id={$ghsId} 非采购供货商行（无 ownShopId）" . PHP_EOL;
            return false;
        }

        $orderDebt = AccountMoneyClass::sumPurchaseOrderDebtForGhs($ghsId);
        $rawBalance = bcadd((string)($ghs->balance ?? '0'), '0', 2);
        $positiveCredit = bccomp($rawBalance, '0', 2) > 0 ? $rawBalance : '0.00';
        $newBalance = bcsub($positiveCredit, $orderDebt, 2);

        if ($dry) {
            echo "[供货商] id={$ghsId} ownShopId={$ownShopId} balance={$ghs->balance} debtAmount={$ghs->debtAmount}"
                . " 采购待结合计={$orderDebt} => 新balance={$newBalance}" . PHP_EOL;
            return true;
        }

        $locked = BizGhsClass::getLockById($ghsId);
        AccountMoneyClass::mergeOwnShopGhsBalanceFromPurchaseOrdersIfNeeded($locked, true);
        echo "[已合并] id={$ghsId} 采购待结={$orderDebt} 新balance={$newBalance}" . PHP_EOL;
        return true;
    }

    /**
     * 判断 xhGhs 是否已有 balanceMerged 字段。
     */
    protected function columnExists($table, $column)
    {
        $db = \Yii::$app->db;
        $schema = $db->getTableSchema($table, true);
        return $schema && isset($schema->columns[$column]);
    }
}