{{--
    Marketing pixels. Each one loads only when its ID is set in
    Admin → Settings → Analytics, so nothing is requested on a fresh install.

    Fire a conversion from any page with:
        @push('analytics') <script>lfTrack('purchase', {value: 49, currency: 'USD'});</script> @endpush
--}}
@php
    $ga4 = trim((string) setting('ga4_measurement_id', ''));
    $meta = trim((string) setting('meta_pixel_id', ''));
    $tiktok = trim((string) setting('tiktok_pixel_id', ''));
@endphp

@if($ga4)
    <script async src="https://www.googletagmanager.com/gtag/js?id={{ $ga4 }}"></script>
    <script>
        window.dataLayer = window.dataLayer || [];
        function gtag(){dataLayer.push(arguments);}
        gtag('js', new Date());
        gtag('config', '{{ $ga4 }}');
    </script>
@endif

@if($meta)
    <script>
        !function(f,b,e,v,n,t,s){if(f.fbq)return;n=f.fbq=function(){n.callMethod?
        n.callMethod.apply(n,arguments):n.queue.push(arguments)};if(!f._fbq)f._fbq=n;
        n.push=n;n.loaded=!0;n.version='2.0';n.queue=[];t=b.createElement(e);t.async=!0;
        t.src=v;s=b.getElementsByTagName(e)[0];s.parentNode.insertBefore(t,s)}(window,
        document,'script','https://connect.facebook.net/en_US/fbevents.js');
        fbq('init', '{{ $meta }}'); fbq('track', 'PageView');
    </script>
    <noscript><img height="1" width="1" style="display:none" src="https://www.facebook.com/tr?id={{ $meta }}&ev=PageView&noscript=1" alt=""></noscript>
@endif

@if($tiktok)
    <script>
        !function(w,d,t){w.TiktokAnalyticsObject=t;var ttq=w[t]=w[t]||[];
        ttq.methods=['page','track','identify','instances','debug','on','off','once','ready','alias','group','enableCookie','disableCookie'];
        ttq.setAndDefer=function(e,n){e[n]=function(){e.push([n].concat(Array.prototype.slice.call(arguments,0)))}};
        for(var i=0;i<ttq.methods.length;i++)ttq.setAndDefer(ttq,ttq.methods[i]);
        ttq.instance=function(e){for(var n=ttq._i[e]||[],i=0;i<ttq.methods.length;i++)ttq.setAndDefer(n,ttq.methods[i]);return n};
        ttq.load=function(e,n){var i='https://analytics.tiktok.com/i18n/pixel/events.js';
        ttq._i=ttq._i||{};ttq._i[e]=[];ttq._i[e]._u=i;ttq._t=ttq._t||{};ttq._t[e]=+new Date;
        ttq._o=ttq._o||{};ttq._o[e]=n||{};var o=d.createElement('script');o.type='text/javascript';
        o.async=!0;o.src=i+'?sdkid='+e+'&lib='+t;var a=d.getElementsByTagName('script')[0];
        a.parentNode.insertBefore(o,a)};
        ttq.load('{{ $tiktok }}'); ttq.page();
        }(window, document, 'ttq');
    </script>
@endif

@if($ga4 || $meta || $tiktok)
    <script>
        /**
         * One call, every pixel. Event names are the GA4 ones; the Meta and
         * TikTok equivalents are mapped here so pages do not have to care.
         */
        window.lfTrack = function (event, params) {
            params = params || {};
            var meta = { view_item: 'ViewContent', add_to_cart: 'AddToCart', begin_checkout: 'InitiateCheckout', purchase: 'Purchase', sign_up: 'CompleteRegistration' },
                tiktok = { view_item: 'ViewContent', add_to_cart: 'AddToCart', begin_checkout: 'InitiateCheckout', purchase: 'CompletePayment', sign_up: 'CompleteRegistration' };
            try { if (window.gtag) gtag('event', event, params); } catch (e) {}
            try { if (window.fbq && meta[event]) { var opts = params.transaction_id && event === 'purchase' ? { eventID: String(params.transaction_id) } : undefined; opts ? fbq('track', meta[event], params, opts) : fbq('track', meta[event], params); } } catch (e) {}
            try { if (window.ttq && tiktok[event]) ttq.track(tiktok[event], params); } catch (e) {}
        };
    </script>
@endif

@if(session('lf_purchase'))
    {{-- Fired once, on the page the buyer lands on after a successful payment. --}}
    @php($lfPurchase = session('lf_purchase'))
    <script>
        if (window.lfTrack) lfTrack('purchase', {
            transaction_id: @json($lfPurchase['order_no'] ?? ''),
            value: {{ (float) ($lfPurchase['value'] ?? 0) }},
            currency: @json($lfPurchase['currency'] ?? setting('currency', 'USD'))
        });
    </script>
@endif

@if(session('lf_signup'))
    {{-- Fired once, on the first page a newly registered user lands on. --}}
    <script>
        if (window.lfTrack) lfTrack('sign_up', { method: @json(session('lf_signup')['method'] ?? 'email') });
    </script>
@endif

@stack('analytics')