package event

import (
	mp "github.com/foomo/sesamy-go/measurementprotocol"
	mpv2 "github.com/foomo/sesamy-go/measurementprotocol/v2"
)

/*
Refund https://developers.google.com/tag-platform/gtagjs/reference/events#refund

	gtag('event', 'refund', {
		currency: 'USD',
		value: 30.03,
		transaction_id: 'T_12345',
		coupon: 'SUMMER_FUN',
		shipping: 3.33,
		tax: 1.11,
		items: [
			{
				item_id: 'SKU_12345',
				item_name: 'Stan and Friends Tee',
				affiliation: 'Google Store',
				coupon: 'SUMMER_FUN',
				discount: 2.22,
				index: 5,
				item_brand: 'Google',
				item_category: 'Apparel',
				item_category2: 'Adult',
				item_category3: 'Shirts',
				item_category4: 'Crew',
				item_category5: 'Short sleeve',
				item_list_id: 'related_products',
				item_list_name: 'Related products',
				item_variant: 'green',
				location_id: 'ChIJIQBpAG2ahYAR_6128GcTUEo',
				price: 10.01,
				quantity: 3
			}
		]
	});

Query: v=2&tid=G-PZ5ELRCR31&gtm=45he42t1v9177778896z89175355532za220&_p=1709537217366&_dbg=1&gcd=13l3l3l3l1&npa=0&dma_cps=sypham&dma=1&cid=1220643501.1708014725&ul=en-us&sr=3840x1600&_fplc=0&ur=&uaa=arm&uab=64&uafvl=Chromium%3B122.0.6261.69%7CNot(A%253ABrand%3B24.0.0.0%7CGoogle%2520Chrome%3B122.0.6261.69&uamb=0&uam=&uap=macOS&uapv=14.3.1&uaw=0&are=1&pscdl=noapi&_eu=IA&sst.uc=&sst.gcd=13l3l3l3l1&sst.tft=1709537217366&_s=6&cu=USD&sid=1709534872&sct=10&seg=1&dl=https%3A%2F%2Fsniffer.local.bestbytes.net%2F%3Fgtm_debug%3D1709537217296&dr=https%3A%2F%2Ftagassistant.google.com%2F&dt=Server%20Side%20Tracking%20Prototype%20(codename%3A%20sniffer)&en=refund&_c=1&pr1=idSKU_12345~nmStan%20and%20Friends%20Tee~afGoogle%20Store~cpSUMMER_FUN~ds2.22~lp5~brGoogle~caApparel~c2Adult~c3Shirts~c4Crew~c5Short%20sleeve~lirelated_products~lnRelated%20products~vagreen~loChIJIQBpAG2ahYAR_6128GcTUEo~pr10.01~qt3&epn.value=30.03&ep.transaction_id=T_12345&ep.coupon=SUMMER_FUN&epn.shipping=3.33&epn.tax=1.11&tfd=184622&richsstsse
*/
type Refund struct {
	Currency      string
	Value         float64
	TransactionID string
	Coupon        string
	Shipping      float64
	Tax           float64
	Items         []*Item
}

func (e *Refund) MPv2() *mpv2.Event {
	items := make([]*mpv2.Item, len(e.Items))
	for i, item := range e.Items {
		items[i] = item.MPv2()
	}
	return &mpv2.Event{
		Currency: mp.SetString(e.Currency),
		EventParameter: map[string]string{
			mpv2.EventParameterTransactionID.String(): *mp.SetFloat64(e.Value),
			mpv2.EventParameterCoupon.String():        *mp.SetFloat64(e.Value),
		},
		EventParameterNumber: map[string]string{
			mpv2.EventParameterNumberValue.String():    *mp.SetFloat64(e.Value),
			mpv2.EventParameterNumberShipping.String(): *mp.SetFloat64(e.Value),
			mpv2.EventParameterNumberTax.String():      *mp.SetFloat64(e.Value),
		},
		Items: items,
	}
}