init commit

about.json

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+{
+  "about_url": null,
+  "license_url": null,
+  "assets": {
+  },
+  "name": "discourse-gated-category",
+  "component": true
+}

common/common.scss

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+.custom-need-access-prompt {
+  background: red;
+  display: block;
+}

javascripts/discourse/components/need-access-prompt.js

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+import Component from "@ember/component";
+import I18n from "I18n";
+import discourseComputed from "discourse-common/utils/decorators";
+import { default as getURL } from "discourse-common/lib/get-url";
+// import cookie from "discourse/lib/cookie";
+
+export default Component.extend({
+  tagName: "",
+  hidden: true,
+
+  didInsertElement() {
+    this._super(...arguments);
+    this.appEvents.on("cta:shown", this, this._triggerPrompt);
+  },
+
+  willDestroyElement() {
+    this.appEvents.off("cta:shown", this, this._triggerPrompt);
+  },
+
+  _triggerPrompt() {
+    this.set("hidden", false)
+  },
+
+  @discourseComputed("hidden")
+  shouldShow(hidden) {
+    return !hidden;
+  },
+
+  // @action
+  // dismissBanner() {
+  //   this.keyValueStore.setItem("anon-cta-never", "t");
+  //   this.session.set("showSignupCta", false);
+  //   this.set("hidden", true);
+  // },
+
+  // @action
+  // showBannerLater() {
+  //   this.keyValueStore.setItem("anon-cta-hidden", Date.now());
+  //   this.set("hidden", true)
+  // },
+});

javascripts/discourse/connectors/topic-above-post-stream/need-access-prompt.hbs

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+{{need-access-prompt}}

javascripts/discourse/initializers/discourse-gated-category.js

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+import { withPluginApi } from "discourse/lib/plugin-api";
+import discourseComputed from "discourse-common/utils/decorators";
+import { inject as service } from "@ember/service";
+
+const enabledCategories = settings.enabled_categories
+  .split("|")
+  .map((id) => parseInt(id, 10))
+  .filter((id) => id);
+
+const PLUGIN_ID = "discourse-gated-category";
+
+export default {
+  name: "require-signup-on-select-category",
+  initialize() {
+    withPluginApi("0.8.14", (api) => this.initWithApi(api));
+  },
+
+  initWithApi(api) {
+    const site = api.container.lookup("site:main");
+
+    api.modifyClass("component:topic-list-item", {
+      pluginID: PLUGIN_ID,
+      excerptsRouter: service("router"),
+
+      @discourseComputed(
+        "excerptsRouter.currentRouteName",
+        "excerptsRouter.currentRoute.attributes.category.id"
+      )
+      requireSignUpCategoryId(currentRouteName, categoryId) {
+        if (!currentRouteName.match(/^discovery\./)) return;
+        return categoryId;
+      },
+
+      @discourseComputed("requireSignUpCategoryId")
+      expandPinned(viewingCategory) {
+        const overrideEverywhere =
+          enabledCategories.length === 0;
+
+        const overrideInCategory = enabledCategories.includes(viewingCategory);
+
+        return overrideEverywhere || overrideInCategory
+          ? true
+          : this._super();
+      },
+    });
+  },
+};
+  

javascripts/discourse/templates/components/need-access-prompt.hbs

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+{{!-- {{#if shouldShow}} --}}
+  <div class="custom-need-access-prompt">
+    <h1>{{theme-setting "prompt_heading"}}</h1>  
+    {{d-button action=(route-action "showCreateAccount") class="btn-primary sign-up-button" translatedLabel=(theme-setting "prompt_cta_label")}}
+  </div>
+{{!-- {{/if}} --}}

locales/en.yml

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+en:
+  theme_metadata:
+    description: "Categories with logged-in access only"

package.json

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+{
+  "author": "ella",
+  "license": "MIT",
+  "devDependencies": {
+    "eslint-config-discourse": "latest"
+  }
+}

settings.yml

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+enabled_categories:
+  type: list
+  list_type: category
+  default: ""
+  description: "Choose which categories that users need to sign up"
+prompt_heading:
+  type: string
+  default: "Sign up to read the rest of the post"
+  description: ""
+prompt_cta_label:
+  type: string
+  default: "Sign Up"
+  description: ""