From 62bc848f9179515942218843631906c26941b2df Mon Sep 17 00:00:00 2001
From: varodv <72568818+alvarodE@users.noreply.github.com>
Date: Mon, 6 May 2024 13:32:35 +0200
Subject: [PATCH] feat: Create useFacets composable and use it on ClearFilters
 component

---
 .../facets/components/clear-filters.vue       | 83 +++++++++++--------
 .../src/x-modules/facets/composables/index.ts |  1 +
 .../composables/use-facets.composable.ts      | 76 +++++++++++++++++
 .../src/x-modules/facets/index.ts             |  1 +
 4 files changed, 125 insertions(+), 36 deletions(-)
 create mode 100644 packages/x-components/src/x-modules/facets/composables/index.ts
 create mode 100644 packages/x-components/src/x-modules/facets/composables/use-facets.composable.ts

diff --git a/packages/x-components/src/x-modules/facets/components/clear-filters.vue b/packages/x-components/src/x-modules/facets/components/clear-filters.vue
index 7ce233b55d..b70b6939fa 100644
--- a/packages/x-components/src/x-modules/facets/components/clear-filters.vue
+++ b/packages/x-components/src/x-modules/facets/components/clear-filters.vue
@@ -12,55 +12,66 @@
 </template>
 
 <script lang="ts">
-  import Component from 'vue-class-component';
-  import { xComponentMixin } from '../../../components';
+  import { Facet } from '@empathyco/x-types';
+  import { computed, defineComponent, PropType } from 'vue';
   import BaseEventButton from '../../../components/base-event-button.vue';
-  import { VueCSSClasses } from '../../../utils';
-  import { XEventsTypes } from '../../../wiring';
+  import { VueCSSClasses } from '../../../utils/types';
+  import { XEventsTypes } from '../../../wiring/events.types';
+  import { useFacets } from '../composables/use-facets.composable';
   import { facetsXModule } from '../x-module';
-  import FacetsMixin from './facets.mixin';
 
   /**
    * Renders a simple button, emitting the needed events when clicked.
    *
-   * @remarks It extends {@link FacetsMixin}.
-   *
    * @public
    */
-  @Component({
+  export default defineComponent({
+    name: 'ClearFilters',
+    xModule: facetsXModule.name,
     components: { BaseEventButton },
-    mixins: [xComponentMixin(facetsXModule)]
-  })
-  export default class ClearFilters extends FacetsMixin {
-    /**
-     * The events that will be emitted when the button clear filters is clicked.
-     *
-     * @returns The events to be emitted when the button clear filters is clicked.
-     * @internal
-     */
-    protected get events(): Partial<XEventsTypes> {
-      return this.facetsIds
-        ? {
-            UserClickedClearAllFilters: this.facetsIds
-          }
-        : {
-            UserClickedClearAllFilters: undefined
-          };
-    }
+    props: {
+      /** Array of facets ids used to get the selected filters for those facets. */
+      facetsIds: Array as PropType<Array<Facet['id']>>,
+      /** Flag to render the component even if there are no filters selected. */
+      alwaysVisible: Boolean
+    },
+    setup: function (props) {
+      const { selectedFilters, hasSelectedFilters, isVisible } = useFacets(props);
+
+      /**
+       * The events that will be emitted when the button clear filters is clicked.
+       *
+       * @returns The events to be emitted when the button clear filters is clicked.
+       */
+      const events = computed<Partial<XEventsTypes>>(() =>
+        props.facetsIds
+          ? {
+              UserClickedClearAllFilters: props.facetsIds
+            }
+          : {
+              UserClickedClearAllFilters: undefined
+            }
+      );
+
+      /**
+       * Dynamic CSS classes to apply to the component.
+       *
+       * @returns The dynamic CSS classes to apply to the component.
+       */
+      const cssClasses = computed<VueCSSClasses>(() => ({
+        'x-clear-filters--has-not-selected-filters': !hasSelectedFilters.value,
+        'x-clear-filters--has-selected-filters': hasSelectedFilters.value
+      }));
 
-    /**
-     * Dynamic CSS classes to apply to the component.
-     *
-     * @returns The dynamic CSS classes to apply to the component.
-     * @internal
-     */
-    protected get cssClasses(): VueCSSClasses {
       return {
-        'x-clear-filters--has-not-selected-filters': !this.hasSelectedFilters,
-        'x-clear-filters--has-selected-filters': this.hasSelectedFilters
+        selectedFilters,
+        hasSelectedFilters,
+        isVisible,
+        events,
+        cssClasses
       };
     }
-  }
+  });
 </script>
 
 <docs lang="mdx">
diff --git a/packages/x-components/src/x-modules/facets/composables/index.ts b/packages/x-components/src/x-modules/facets/composables/index.ts
new file mode 100644
index 0000000000..6e791ec401
--- /dev/null
+++ b/packages/x-components/src/x-modules/facets/composables/index.ts
@@ -0,0 +1 @@
+export * from './use-facets.composable';
diff --git a/packages/x-components/src/x-modules/facets/composables/use-facets.composable.ts b/packages/x-components/src/x-modules/facets/composables/use-facets.composable.ts
new file mode 100644
index 0000000000..9d5b14c51b
--- /dev/null
+++ b/packages/x-components/src/x-modules/facets/composables/use-facets.composable.ts
@@ -0,0 +1,76 @@
+import { Facet, Filter } from '@empathyco/x-types';
+import { computed, ComputedRef } from 'vue';
+import { useGetter } from '../../../composables/use-getter';
+import { isArrayEmpty } from '../../../utils/array';
+import { FiltersByFacet } from '../store/types';
+
+/**
+ * Composable to share Facets logic.
+ *
+ * @param params - Composable params.
+ * @returns Composable.
+ *
+ * @public
+ */
+export function useFacets({
+  facetsIds,
+  alwaysVisible = false
+}: {
+  /** Array of facets ids used to get the selected filters for those facets. */
+  facetsIds?: Array<Facet['id']>;
+  /** Flag to render the component even if there are no filters selected. */
+  alwaysVisible?: boolean;
+}) {
+  const { selectedFiltersByFacet, selectedFilters: selectedFiltersGetter } = useGetter('facets', [
+    'selectedFiltersByFacet',
+    'selectedFilters'
+  ]) as {
+    /** Dictionary of filters {@link FiltersByFacet} filtered by facet id. */
+    selectedFiltersByFacet: ComputedRef<FiltersByFacet>;
+    /** Get the selected filters from store. */
+    selectedFilters: ComputedRef<Filter[]>;
+  };
+
+  /**
+   * Get selected filters.
+   * If there are facets ids, get selected filters whose facet id match with some of facets ids.
+   * If there aren't facets ids, get selected filters.
+   *
+   * @returns Array of selected filters depends on there are facets ids or not.
+   */
+  const selectedFilters = computed<Filter[]>(() => {
+    if (facetsIds) {
+      return (facetsIds as string[]).reduce(
+        (selectedFilters, facetId) => [
+          ...selectedFilters,
+          ...selectedFiltersByFacet.value[facetId]
+        ],
+        [] as Filter[]
+      );
+    }
+
+    return selectedFiltersGetter.value;
+  });
+
+  /**
+   * Check if there are selected filters.
+   *
+   * @returns True or false depends on if there are selected filters.
+   */
+  const hasSelectedFilters = computed<boolean>(() => !isArrayEmpty(selectedFilters.value));
+
+  /**
+   * Flag representing if the component should be visible/rendered or not.
+   *
+   * @returns True whenever alwaysVisible is true or has selected filters. False
+   * otherwise.
+   */
+  const isVisible = computed<boolean>(() => alwaysVisible || hasSelectedFilters.value);
+
+  return {
+    selectedFiltersByFacet,
+    selectedFilters,
+    hasSelectedFilters,
+    isVisible
+  };
+}
diff --git a/packages/x-components/src/x-modules/facets/index.ts b/packages/x-components/src/x-modules/facets/index.ts
index 4c2cb38079..6a60ad506d 100644
--- a/packages/x-components/src/x-modules/facets/index.ts
+++ b/packages/x-components/src/x-modules/facets/index.ts
@@ -4,6 +4,7 @@ export * from './wiring';
 export * from './service';
 export * from './entities';
 export * from './components';
+export * from './composables';
 export * from './events.types';
 export * from './utils';
 export { default as FacetsMixin } from './components/facets.mixin';