1 files changed, 83 insertions, 0 deletions
diff --git a/app/assets/javascripts/clusters_list/components/available_agents_dropdown.vue b/app/assets/javascripts/clusters_list/components/available_agents_dropdown.vue
new file mode 100644
index 00000000000..9fb020d2f4f
--- /dev/null
+++ b/app/assets/javascripts/clusters_list/components/available_agents_dropdown.vue
@@ -0,0 +1,83 @@
+<script>
+import { GlDropdown, GlDropdownItem } from '@gitlab/ui';
+import { I18N_AVAILABLE_AGENTS_DROPDOWN } from '../constants';
+import agentConfigurations from '../graphql/queries/agent_configurations.query.graphql';
+
+export default {
+  name: 'AvailableAgentsDropdown',
+  i18n: I18N_AVAILABLE_AGENTS_DROPDOWN,
+  components: {
+    GlDropdown,
+    GlDropdownItem,
+  },
+  inject: ['projectPath'],
+  props: {
+    isRegistering: {
+      required: true,
+      type: Boolean,
+    },
+  },
+  apollo: {
+    agents: {
+      query: agentConfigurations,
+      variables() {
+        return {
+          projectPath: this.projectPath,
+        };
+      },
+      update(data) {
+        this.populateAvailableAgents(data);
+      },
+    },
+  },
+  data() {
+    return {
+      availableAgents: [],
+      selectedAgent: null,
+    };
+  },
+  computed: {
+    isLoading() {
+      return this.$apollo.queries.agents.loading;
+    },
+    dropdownText() {
+      if (this.isRegistering) {
+        return this.$options.i18n.registeringAgent;
+      } else if (this.selectedAgent === null) {
+        return this.$options.i18n.selectAgent;
+      }
+
+      return this.selectedAgent;
+    },
+  },
+  methods: {
+    selectAgent(agent) {
+      this.$emit('agentSelected', agent);
+      this.selectedAgent = agent;
+    },
+    isSelected(agent) {
+      return this.selectedAgent === agent;
+    },
+    populateAvailableAgents(data) {
+      const installedAgents = data?.project?.clusterAgents?.nodes.map((agent) => agent.name) ?? [];
+      const configuredAgents =
+        data?.project?.agentConfigurations?.nodes.map((config) => config.agentName) ?? [];
+
+      this.availableAgents = configuredAgents.filter((agent) => !installedAgents.includes(agent));
+    },
+  },
+};
+</script>
+<template>
+  <gl-dropdown :text="dropdownText" :loading="isLoading || isRegistering">
+    <gl-dropdown-item
+      v-for="agent in availableAgents"
+      :key="agent"
+      :is-checked="isSelected(agent)"
+      is-check-item
+      @click="selectAgent(agent)"
+    >
+      {{ agent }}
+    </gl-dropdown-item>
+  </gl-dropdown>
+</template>