From 25ce0fe1ec14c7a56bd8c01ceff2fe6836d05538 Mon Sep 17 00:00:00 2001
From: DebaucheryLibrarian <DebaucheryLibrarian@unknown.name>
Date: Thu, 13 Jun 2024 03:10:11 +0200
Subject: [PATCH] Randomizing campaigns by entity to ensure equal exposure.

---
 components/scenes/scenes.vue |  1 +
 src/campaigns.js             | 24 ++++++++++++++++++++----
 static                       |  2 +-
 3 files changed, 22 insertions(+), 5 deletions(-)

diff --git a/components/scenes/scenes.vue b/components/scenes/scenes.vue
index c16f159..1b78212 100644
--- a/components/scenes/scenes.vue
+++ b/components/scenes/scenes.vue
@@ -340,6 +340,7 @@ function updateFilter(prop, value, reload = true) {
 	display: flex;
 	justify-content: space-between;
 	align-items: center;
+	flex-shrink: 0;
 	margin-bottom: .5rem;
 }
 
diff --git a/src/campaigns.js b/src/campaigns.js
index 7cbd061..0352456 100644
--- a/src/campaigns.js
+++ b/src/campaigns.js
@@ -57,12 +57,28 @@ export async function getRandomCampaign(options = {}, context = {}) {
 		return true;
 	});
 
-	const primaryCampaigns = validCampaigns.filter((campaign) => campaign.entity.id === options.entityIds?.[0]);
+	const campaignsByEntityId = validCampaigns.reduce((acc, campaign) => {
+		const entityId = campaign.entity.parent?.id || campaign.entity.id;
+
+		if (!acc[entityId]) {
+			acc[entityId] = [];
+		}
+
+		acc[entityId].push(campaign);
+
+		return acc;
+	}, {});
+
+	// randomize entities first to ensure fair exposure for entities with fewer banners
+	const entityIds = Object.keys(campaignsByEntityId);
+	const randomEntityCampaigns = campaignsByEntityId[entityIds[crypto.randomInt(entityIds.length)]];
+
+	const primaryCampaigns = randomEntityCampaigns.filter((campaign) => campaign.entity.id === options.entityIds?.[0]);
 
 	if (validCampaigns.length > 0) {
-		const randomCampaign = primaryCampaigns.length > 0
-			? primaryCampaigns[crypto.randomInt(primaryCampaigns.length)]
-			: validCampaigns[crypto.randomInt(validCampaigns.length)];
+		const randomCampaign = (primaryCampaigns.length > 0 ? primaryCampaigns[crypto.randomInt(primaryCampaigns.length)] : null)
+			|| (randomEntityCampaigns.length > 0 ? randomEntityCampaigns[crypto.randomInt(randomEntityCampaigns.length)] : null)
+			|| validCampaigns[crypto.randomInt(validCampaigns.length)];
 
 		return randomCampaign;
 	}
diff --git a/static b/static
index 6289c5f..76242fe 160000
--- a/static
+++ b/static
@@ -1 +1 @@
-Subproject commit 6289c5ff5707aac96d306f29805c322393164d3a
+Subproject commit 76242feb7b3e75bcc581d9b19ee509c6e01a87aa