feat: group statistics endpoint (#123)

* group statistics endpoint

* remove item store

* return possible errors

* add statistics tests

backend/app/api/handlers/v1/v1_ctrl_group.go

@@ -24,6 +24,26 @@ type (
 	}
 )
 
+// HandleGroupGet godoc
+// @Summary  Get the current user's group
+// @Tags     Group
+// @Produce  json
+// @Success  200 {object} repo.GroupStatistics
+// @Router   /v1/groups/statistics [Get]
+// @Security Bearer
+func (ctrl *V1Controller) HandleGroupStatistics() server.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) error {
+		ctx := services.NewContext(r.Context())
+
+		stats, err := ctrl.repo.Groups.GroupStatistics(ctx, ctx.GID)
+		if err != nil {
+			return validate.NewRequestError(err, http.StatusInternalServerError)
+		}
+
+		return server.Respond(w, http.StatusOK, stats)
+	}
+}
+
 // HandleGroupGet godoc
 // @Summary  Get the current user's group
 // @Tags     Group

backend/app/api/routes.go

@@ -76,6 +76,7 @@ func (a *app) mountRoutes(repos *repo.AllRepos) {
 	a.server.Put(v1Base("/users/self/change-password"), v1Ctrl.HandleUserSelfChangePassword(), a.mwAuthToken)
 
 	a.server.Post(v1Base("/groups/invitations"), v1Ctrl.HandleGroupInvitationsCreate(), a.mwAuthToken)
+	a.server.Get(v1Base("/groups/statistics"), v1Ctrl.HandleGroupStatistics(), a.mwAuthToken)
 
 	// TODO: I don't like /groups being the URL for users
 	a.server.Get(v1Base("/groups"), v1Ctrl.HandleGroupGet(), a.mwAuthToken)

backend/app/api/static/docs/docs.go

@@ -113,6 +113,30 @@ const docTemplate = `{
                 }
             }
         },
+        "/v1/groups/statistics": {
+            "get": {
+                "security": [
+                    {
+                        "Bearer": []
+                    }
+                ],
+                "produces": [
+                    "application/json"
+                ],
+                "tags": [
+                    "Group"
+                ],
+                "summary": "Get the current user's group",
+                "responses": {
+                    "200": {
+                        "description": "OK",
+                        "schema": {
+                            "$ref": "#/definitions/repo.GroupStatistics"
+                        }
+                    }
+                }
+            }
+        },
         "/v1/items": {
             "get": {
                 "security": [
@@ -1178,6 +1202,23 @@ const docTemplate = `{
                 }
             }
         },
+        "repo.GroupStatistics": {
+            "type": "object",
+            "properties": {
+                "totalItems": {
+                    "type": "integer"
+                },
+                "totalLabels": {
+                    "type": "integer"
+                },
+                "totalLocations": {
+                    "type": "integer"
+                },
+                "totalUsers": {
+                    "type": "integer"
+                }
+            }
+        },
         "repo.GroupUpdate": {
             "type": "object",
             "properties": {

backend/app/api/static/docs/swagger.json

@@ -105,6 +105,30 @@
                 }
             }
         },
+        "/v1/groups/statistics": {
+            "get": {
+                "security": [
+                    {
+                        "Bearer": []
+                    }
+                ],
+                "produces": [
+                    "application/json"
+                ],
+                "tags": [
+                    "Group"
+                ],
+                "summary": "Get the current user's group",
+                "responses": {
+                    "200": {
+                        "description": "OK",
+                        "schema": {
+                            "$ref": "#/definitions/repo.GroupStatistics"
+                        }
+                    }
+                }
+            }
+        },
         "/v1/items": {
             "get": {
                 "security": [
@@ -1170,6 +1194,23 @@
                 }
             }
         },
+        "repo.GroupStatistics": {
+            "type": "object",
+            "properties": {
+                "totalItems": {
+                    "type": "integer"
+                },
+                "totalLabels": {
+                    "type": "integer"
+                },
+                "totalLocations": {
+                    "type": "integer"
+                },
+                "totalUsers": {
+                    "type": "integer"
+                }
+            }
+        },
         "repo.GroupUpdate": {
             "type": "object",
             "properties": {

backend/app/api/static/docs/swagger.yaml

@@ -22,6 +22,17 @@ definitions:
       updatedAt:
         type: string
     type: object
+  repo.GroupStatistics:
+    properties:
+      totalItems:
+        type: integer
+      totalLabels:
+        type: integer
+      totalLocations:
+        type: integer
+      totalUsers:
+        type: integer
+    type: object
   repo.GroupUpdate:
     properties:
       currency:
@@ -560,6 +571,20 @@ paths:
       summary: Get the current user
       tags:
       - Group
+  /v1/groups/statistics:
+    get:
+      produces:
+      - application/json
+      responses:
+        "200":
+          description: OK
+          schema:
+            $ref: '#/definitions/repo.GroupStatistics'
+      security:
+      - Bearer: []
+      summary: Get the current user's group
+      tags:
+      - Group
   /v1/items:
     get:
       parameters:

backend/go.sum

@@ -72,13 +72,11 @@ github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovk
 github.com/mattn/go-isatty v0.0.14/go.mod h1:7GGIvUiUoEMVVmxf/4nioHXj79iQHKdU27kJ6hsGG94=
 github.com/mattn/go-isatty v0.0.16 h1:bq3VjFmv/sOjHtdEhmkEV4x1AJtvUvOJ2PFAZ5+peKQ=
 github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
-github.com/mattn/go-runewidth v0.0.9 h1:Lm995f3rfxdpd6TSmuVCHVb/QhupuXlYr8sCI/QdE+0=
 github.com/mattn/go-sqlite3 v1.14.16 h1:yOQRA0RpS5PFz/oikGwBEqvAWhWg5ufRz4ETLjwpU1Y=
 github.com/mattn/go-sqlite3 v1.14.16/go.mod h1:2eHXhiwb8IkHr+BDWZGa96P6+rkvnG63S2DGjv9HUNg=
 github.com/mitchellh/go-wordwrap v1.0.1 h1:TLuKupo69TCn6TQSyGxwI1EblZZEsQ0vMlAFQflz0v0=
 github.com/mitchellh/go-wordwrap v1.0.1/go.mod h1:R62XHJLzvMFRBbcrT7m7WgmE1eOyTSsCt+hzestvNj0=
 github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
-github.com/olekukonko/tablewriter v0.0.5 h1:P2Ga83D34wi1o9J6Wh1mRuqd4mF/x/lgBS7N7AbDhec=
 github.com/pkg/diff v0.0.0-20210226163009-20ebb0f2a09e/go.mod h1:pJLUxLENpZxwdsKMEsNbx1VGcRFpLqf3715MtcvvzbA=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
@@ -90,8 +88,6 @@ github.com/rs/xid v1.4.0/go.mod h1:trrq9SKmegXys3aeAKXMUTdJsYXVwGY3RLcfgqegfbg=
 github.com/rs/zerolog v1.28.0 h1:MirSo27VyNi7RJYP3078AA1+Cyzd2GB66qy3aUHvsWY=
 github.com/rs/zerolog v1.28.0/go.mod h1:NILgTygv/Uej1ra5XxGf82ZFSLk58MFGAUS2o6usyD0=
 github.com/sergi/go-diff v1.0.0 h1:Kpca3qRNrduNnOQeazBd0ysaKrUJiIuISHxogkT9RPQ=
-github.com/spf13/cobra v1.5.0 h1:X+jTBEBqF0bHN+9cSMgmfuvv2VHJ9ezmFNf9Y/XstYU=
-github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
 github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=

backend/internal/data/repo/repo_group.go

@@ -41,6 +41,12 @@ type (
 		Uses      int       `json:"uses"`
 		Group     Group     `json:"group"`
 	}
+	GroupStatistics struct {
+		TotalUsers     int `json:"totalUsers"`
+		TotalItems     int `json:"totalItems"`
+		TotalLocations int `json:"totalLocations"`
+		TotalLabels    int `json:"totalLabels"`
+	}
 )
 
 var (
@@ -70,6 +76,25 @@ func mapToGroupInvitation(g *ent.GroupInvitationToken) GroupInvitation {
 	}
 }
 
+func (r *GroupRepository) GroupStatistics(ctx context.Context, GID uuid.UUID) (GroupStatistics, error) {
+	q := `
+		SELECT
+			(SELECT COUNT(*) FROM users WHERE group_users = ?) AS total_users,
+			(SELECT COUNT(*) FROM items WHERE group_items = ? AND items.archived = false) AS total_items,
+			(SELECT COUNT(*) FROM locations WHERE group_locations = ?) AS total_locations,
+			(SELECT COUNT(*) FROM labels WHERE group_labels = ?) AS total_labels
+`
+	var stats GroupStatistics
+	row := r.db.Sql().QueryRowContext(ctx, q, GID, GID, GID, GID)
+
+	err := row.Scan(&stats.TotalUsers, &stats.TotalItems, &stats.TotalLocations, &stats.TotalLabels)
+	if err != nil {
+		return GroupStatistics{}, err
+	}
+
+	return stats, nil
+}
+
 func (r *GroupRepository) GroupCreate(ctx context.Context, name string) (Group, error) {
 	return mapToGroupErr(r.db.Group.Create().
 		SetName(name).

backend/internal/data/repo/repo_group_test.go

@@ -31,3 +31,16 @@ func Test_Group_Update(t *testing.T) {
 	assert.Equal(t, "test2", g.Name)
 	assert.Equal(t, "EUR", g.Currency)
 }
+
+func Test_Group_GroupStatistics(t *testing.T) {
+	useItems(t, 20)
+	useLabels(t, 20)
+
+	stats, err := tRepos.Groups.GroupStatistics(context.Background(), tGroup.ID)
+
+	assert.NoError(t, err)
+	assert.Equal(t, 20, stats.TotalItems)
+	assert.Equal(t, 20, stats.TotalLabels)
+	assert.Equal(t, 1, stats.TotalUsers)
+	assert.Equal(t, 1, stats.TotalLocations)
+}

frontend/layouts/default.vue

@@ -9,7 +9,6 @@
 </template>
 
 <script lang="ts" setup>
-  import { useItemStore } from "~~/stores/items";
   import { useLabelStore } from "~~/stores/labels";
   import { useLocationStore } from "~~/stores/locations";
 
@@ -39,23 +38,11 @@
     },
   });
 
-  const itemStore = useItemStore();
-  const reItem = /\/api\/v1\/items\/.*/gm;
-  const rmItemStoreObserver = defineObserver("itemStore", {
-    handler: r => {
-      if (r.status === 201 || r.url.match(reItem)) {
-        itemStore.refresh();
-      }
-      console.debug("itemStore handler called by observer");
-    },
-  });
-
   const eventBus = useEventBus();
   eventBus.on(
     EventTypes.ClearStores,
     () => {
       labelStore.refresh();
-      itemStore.refresh();
       locationStore.refresh();
     },
     "stores"
@@ -64,7 +51,6 @@
   onUnmounted(() => {
     rmLabelStoreObserver();
     rmLocationStoreObserver();
-    rmItemStoreObserver();
     eventBus.off(EventTypes.ClearStores, "stores");
   });
 </script>

frontend/lib/api/classes/group.ts

@@ -1,5 +1,5 @@
 import { BaseAPI, route } from "../base";
-import { Group, GroupInvitation, GroupInvitationCreate, GroupUpdate } from "../types/data-contracts";
+import { Group, GroupInvitation, GroupInvitationCreate, GroupStatistics, GroupUpdate } from "../types/data-contracts";
 
 export class GroupApi extends BaseAPI {
   createInvitation(data: GroupInvitationCreate) {
@@ -21,4 +21,10 @@ export class GroupApi extends BaseAPI {
       url: route("/groups"),
     });
   }
+
+  statistics() {
+    return this.http.get<GroupStatistics>({
+      url: route("/groups/statistics"),
+    });
+  }
 }

frontend/lib/api/types/data-contracts.ts

@@ -24,6 +24,13 @@ export interface Group {
   updatedAt: Date;
 }
 
+export interface GroupStatistics {
+  totalItems: number;
+  totalLabels: number;
+  totalLocations: number;
+  totalUsers: number;
+}
+
 export interface GroupUpdate {
   currency: string;
   name: string;

frontend/pages/home.vue

@@ -1,6 +1,5 @@
 <script setup lang="ts">
   import { useAuthStore } from "~~/stores/auth";
-  import { useItemStore } from "~~/stores/items";
   import { useLabelStore } from "~~/stores/labels";
   import { useLocationStore } from "~~/stores/locations";
 
@@ -16,33 +15,33 @@
 
   const auth = useAuthStore();
 
-  const itemsStore = useItemStore();
-  const items = computed(() => itemsStore.items);
-
   const locationStore = useLocationStore();
   const locations = computed(() => locationStore.locations);
 
   const labelsStore = useLabelStore();
   const labels = computed(() => labelsStore.labels);
 
-  const totalItems = computed(() => items.value?.length || 0);
+  const { data: statistics } = useAsyncData(async () => {
-  const totalLocations = computed(() => locations.value?.length || 0);
+    const { data } = await api.group.statistics();
-  const totalLabels = computed(() => labels.value?.length || 0);
+    return data;
+  });
 
-  const stats = [
+  const stats = computed(() => {
-    {
+    return [
-      label: "Locations",
+      {
-      value: totalLocations,
+        label: "Locations",
-    },
+        value: statistics.value?.totalLocations || 0,
-    {
+      },
-      label: "Items",
+      {
-      value: totalItems,
+        label: "Items",
-    },
+        value: statistics.value?.totalItems || 0,
-    {
+      },
-      label: "Labels",
+      {
-      value: totalLabels,
+        label: "Labels",
-    },
+        value: statistics.value?.totalLabels || 0,
-  ];
+      },
+    ];
+  });
 
   const importDialog = ref(false);
   const importCsv = ref(null);
@@ -141,7 +140,7 @@
             class="grid grid-cols-1 divide-y divide-base-300 border-t border-base-300 sm:grid-cols-3 sm:divide-y-0 sm:divide-x"
           >
             <div v-for="stat in stats" :key="stat.label" class="px-6 py-5 text-center text-sm font-medium">
-              <span class="text-base-900 font-bold">{{ stat.value.value }}</span>
+              <span class="text-base-900 font-bold">{{ stat.value }}</span>
               {{ " " }}
               <span class="text-base-600">{{ stat.label }}</span>
             </div>

frontend/stores/items.ts

@@ -1,33 +0,0 @@
-import { defineStore } from "pinia";
-import { ItemOut } from "~~/lib/api/types/data-contracts";
-
-export const useItemStore = defineStore("items", {
-  state: () => ({
-    allItems: null as ItemOut[] | null,
-    client: useUserApi(),
-  }),
-  getters: {
-    /**
-     * items represents the items that are currently in the store. The store is
-     * synched with the server by intercepting the API calls and updating on the
-     * response.
-     */
-    items(state): ItemOut[] {
-      if (state.allItems === null) {
-        Promise.resolve(this.refresh());
-      }
-      return state.allItems;
-    },
-  },
-  actions: {
-    async refresh(): Promise<ItemOut[]> {
-      const result = await this.client.items.getAll();
-      if (result.error) {
-        return result;
-      }
-
-      this.allItems = result.data.items;
-      return result;
-    },
-  },
-});