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<?php

class OrderItemPhase extends BaseModel
{
    protected $table = "order_item_phase";

    public function orderItem()
    {
        return $this->belongsTo('OrderItem');
    }

    public function invoiceItems()
    {
        return $this->morphMany('InvoiceItem', 'invoiceable');
    }

    public function proInstallment()
    {
        return $this->belongsTo('ProInstallment', 'pro_installment_id', 'id');
    }

    /**
     * for subscription and installment (Invoice has 1 invoiceItem and orderItemPhase)
     */
    public function createInvoice(Invoice $invoice = null)
    {
        if ($invoice === null) {
            // vdump(__FUNCTION__);
            $invoice = new Invoice([
                // 'code'          => "{$this->orderItem->order->code}-{$this->id}",
                'order_id'      => $this->orderItem->order_id,
                'customer_id'   => $this->orderItem->order->customer_id,
                'currency_code' => $this->orderItem->order->currency_code,
                'currency_rate' => $this->orderItem->order->currency_rate,
                'docdate'       => timestamp(),
                'status'        => 'NEW',
            ]);
            $invoice->save();
        }

        $this->createInvoiceItem($invoice);

        $invoice->generateCode()->calcAmount()->save();
        return $invoice;
    }

    public function createInvoiceItem(Invoice $invoice)
    {
        $invoiceItem = new InvoiceItem([
            'supplier_price'         => $this->orderItem->proProductSku->supplier->deductCommission($this->amount),
            'supplier_currency_code' => 'CNY',
            'quantity'               => 1,
            'price'                  => $this->amount,
            'discounted_price'       => $this->amount,
            'invoiceable_type'       => 'OrderItemPhase',
            'invoiceable_id'         => $this->id,
            'supplier_id'            => $this->orderItem->proProductSku->supplier_id,
        ]);
        $invoice->invoiceItems()->save($invoiceItem);
    }

    public function confirm()
    {
        $this->status = "PAID";
        $this->save();
    }

    // create customer point when the order is completed (SALES)
    public function createCustomerPoint()
    {
        // check: an OrderItemPhase has only one InvoiceItem?
        $this->invoiceItems->first()->createCustomerPoint()->save();
    }
}