From 5ba337ab11b9da118de257867e39f2cdf667d3d4 Mon Sep 17 00:00:00 2001
From: hay-kot <hay-kot@pm.me>
Date: Fri, 27 Aug 2021 20:05:02 -0800
Subject: [PATCH] feat(frontend): :sparkles: Fractional Scaling

---
 frontend/api/class-interfaces/recipe-units.ts |   1 +
 frontend/api/class-interfaces/recipes.ts      |   3 +-
 .../Domain/Recipe/RecipeIngredientEditor.vue  |  28 +++-
 .../Recipe/RecipeIngredientFoodDialog.vue     |  38 +++++
 .../Recipe/RecipeIngredientUnitDialog.vue     |  40 ++++++
 .../Domain/Recipe/RecipeIngredients.vue       | 133 ++++++------------
 frontend/composables/use-fraction.ts          |  76 ++++++++++
 frontend/composables/use-recipe-foods.ts      |  27 ++--
 frontend/composables/use-recipe-units.ts      |  29 ++--
 frontend/composables/use-recipes.ts           |   3 +-
 frontend/pages/recipe/_slug.vue               |  54 ++++++-
 11 files changed, 306 insertions(+), 126 deletions(-)
 create mode 100644 frontend/components/Domain/Recipe/RecipeIngredientFoodDialog.vue
 create mode 100644 frontend/components/Domain/Recipe/RecipeIngredientUnitDialog.vue
 create mode 100644 frontend/composables/use-fraction.ts

diff --git a/frontend/api/class-interfaces/recipe-units.ts b/frontend/api/class-interfaces/recipe-units.ts
index 16627fa1f6c8..e583c24a8c92 100644
--- a/frontend/api/class-interfaces/recipe-units.ts
+++ b/frontend/api/class-interfaces/recipe-units.ts
@@ -5,6 +5,7 @@ const prefix = "/api";
 export interface CreateUnit {
   name: string;
   abbreviation: string;
+  fraction: boolean;
   description: string;
 }
 
diff --git a/frontend/api/class-interfaces/recipes.ts b/frontend/api/class-interfaces/recipes.ts
index 15f28cffb405..83549e5a242e 100644
--- a/frontend/api/class-interfaces/recipes.ts
+++ b/frontend/api/class-interfaces/recipes.ts
@@ -1,6 +1,5 @@
 import { BaseCRUDAPI } from "./_base";
-import { Recipe , CreateRecipe } from "~/types/api-types/recipe";
-
+import { Recipe, CreateRecipe } from "~/types/api-types/recipe";
 
 const prefix = "/api";
 
diff --git a/frontend/components/Domain/Recipe/RecipeIngredientEditor.vue b/frontend/components/Domain/Recipe/RecipeIngredientEditor.vue
index f6f85a609ef1..4992b738e38b 100644
--- a/frontend/components/Domain/Recipe/RecipeIngredientEditor.vue
+++ b/frontend/components/Domain/Recipe/RecipeIngredientEditor.vue
@@ -27,7 +27,7 @@
         </v-text-field>
       </v-col>
       <v-col v-if="!disableAmount && units" sm="12" md="3" cols="12">
-        <v-select
+        <v-autocomplete
           v-model="value.unit"
           hide-details
           dense
@@ -38,10 +38,13 @@
           class="mx-1"
           placeholder="Choose Unit"
         >
-        </v-select>
+          <template #no-data>
+            <RecipeIngredientUnitDialog class="mx-2" block small />
+          </template>
+        </v-autocomplete>
       </v-col>
       <v-col v-if="!disableAmount && foods" m="12" md="3" cols="12" class="">
-        <v-select
+        <v-autocomplete
           v-model="value.food"
           hide-details
           dense
@@ -52,7 +55,10 @@
           class="mx-1 py-0"
           placeholder="Choose Food"
         >
-        </v-select>
+          <template #no-data>
+            <RecipeIngredientFoodDialog class="mx-2" block small />
+          </template>
+        </v-autocomplete>
       </v-col>
       <v-col sm="12" md="" cols="12">
         <v-text-field v-model="value.note" hide-details dense solo class="mx-1" placeholder="Notes">
@@ -81,10 +87,14 @@
 
 <script lang="ts">
 import { defineComponent, reactive, toRefs } from "@nuxtjs/composition-api";
+import RecipeIngredientUnitDialog from "./RecipeIngredientUnitDialog.vue";
+import RecipeIngredientFoodDialog from "./RecipeIngredientFoodDialog.vue";
 import { useFoods } from "~/composables/use-recipe-foods";
 import { useUnits } from "~/composables/use-recipe-units";
+import { validators } from "~/composables/use-validators";
 
 export default defineComponent({
+  components: { RecipeIngredientUnitDialog, RecipeIngredientFoodDialog },
   props: {
     value: {
       type: Object,
@@ -99,7 +109,7 @@ export default defineComponent({
     const { value } = props;
 
     const { foods } = useFoods();
-    const { units } = useUnits();
+    const { units, workingUnitData, actions: unitActions } = useUnits();
 
     const state = reactive({
       showTitle: false,
@@ -115,8 +125,14 @@ export default defineComponent({
       }
     }
 
-    return { foods, units, ...toRefs(state), toggleTitle };
+    return { workingUnitData, unitActions, validators, foods, units, ...toRefs(state), toggleTitle };
   },
 });
 </script>
 
+<style >
+.v-input__append-outer {
+  margin: 0 !important;
+  padding: 0 !important;
+}
+</style>
\ No newline at end of file
diff --git a/frontend/components/Domain/Recipe/RecipeIngredientFoodDialog.vue b/frontend/components/Domain/Recipe/RecipeIngredientFoodDialog.vue
new file mode 100644
index 000000000000..b14c0cb672d1
--- /dev/null
+++ b/frontend/components/Domain/Recipe/RecipeIngredientFoodDialog.vue
@@ -0,0 +1,38 @@
+<template>
+  <BaseDialog
+    title="Create Food"
+    :icon="$globals.icons.foods"
+    :keep-open="!validForm"
+    @submit="actions.createOne(domCreateFoodForm)"
+  >
+    <v-card-text>
+      <v-form ref="domCreateFoodForm">
+        <v-text-field v-model="workingFoodData.name" label="Name" :rules="[validators.required]"></v-text-field>
+        <v-text-field v-model="workingFoodData.description" label="Description"></v-text-field>
+      </v-form>
+    </v-card-text>
+    <template #activator="{ open }">
+      <BaseButton
+        v-bind="$attrs"
+        @click="
+          actions.resetWorking();
+          open();
+        "
+      ></BaseButton>
+    </template>
+  </BaseDialog>
+</template>
+
+<script lang="ts">
+import { defineComponent, ref } from "@nuxtjs/composition-api";
+import { useFoods } from "~/composables/use-recipe-foods";
+import { validators } from "~/composables/use-validators";
+export default defineComponent({
+  setup() {
+    const domCreateFoodForm = ref(null);
+    const { workingFoodData, actions, validForm } = useFoods();
+    return { validators, workingFoodData, actions, domCreateFoodForm, validForm };
+  },
+});
+</script>
+
diff --git a/frontend/components/Domain/Recipe/RecipeIngredientUnitDialog.vue b/frontend/components/Domain/Recipe/RecipeIngredientUnitDialog.vue
new file mode 100644
index 000000000000..474714519f02
--- /dev/null
+++ b/frontend/components/Domain/Recipe/RecipeIngredientUnitDialog.vue
@@ -0,0 +1,40 @@
+<template>
+  <BaseDialog
+    title="Create Unit"
+    :icon="$globals.icons.units"
+    :keep-open="!validForm"
+    @submit="actions.createOne(domCreateUnitForm)"
+  >
+    <v-card-text>
+      <v-form ref="domCreateUnitForm">
+        <v-text-field v-model="workingUnitData.name" label="Name" :rules="[validators.required]"></v-text-field>
+        <v-text-field v-model="workingUnitData.abbreviation" label="Abbreviation"></v-text-field>
+        <v-text-field v-model="workingUnitData.description" label="Description"></v-text-field>
+        <v-switch v-model="workingUnitData.fraction" label="Display as Fraction"></v-switch>
+      </v-form>
+    </v-card-text>
+    <template #activator="{ open }">
+      <BaseButton
+        v-bind="$attrs"
+        @click="
+          actions.resetWorking();
+          open();
+        "
+      ></BaseButton>
+    </template>
+  </BaseDialog>
+</template>
+
+<script lang="ts">
+import { defineComponent, ref } from "@nuxtjs/composition-api";
+import { useUnits } from "~/composables/use-recipe-units";
+import { validators } from "~/composables/use-validators";
+export default defineComponent({
+  setup() {
+    const domCreateUnitForm = ref(null);
+    const { workingUnitData, actions, validForm } = useUnits();
+    return { validators, workingUnitData, actions, validForm, domCreateUnitForm };
+  },
+});
+</script>
+
diff --git a/frontend/components/Domain/Recipe/RecipeIngredients.vue b/frontend/components/Domain/Recipe/RecipeIngredients.vue
index 6e2a4da79651..afeeb34de013 100644
--- a/frontend/components/Domain/Recipe/RecipeIngredients.vue
+++ b/frontend/components/Domain/Recipe/RecipeIngredients.vue
@@ -1,68 +1,15 @@
 <template>
-  <div v-if="edit || (value && value.length > 0)">
+  <div v-if="value && value.length > 0">
     <h2 class="mb-4">{{ $t("recipe.ingredients") }}</h2>
-    <div v-if="edit">
-      <draggable :value="value" handle=".handle" @input="updateIndex" @start="drag = true" @end="drag = false">
-        <transition-group type="transition" :name="!drag ? 'flip-list' : null">
-          <div v-for="(ingredient, index) in value" :key="generateKey('ingredient', index)">
-            <v-row align="center">
-              <v-text-field
-                v-if="edit && showTitleEditor[index]"
-                v-model="value[index].title"
-                class="mx-3 mt-3"
-                dense
-                :label="$t('recipe.section-title')"
-              >
-              </v-text-field>
-
-              <v-textarea
-                v-model="value[index].note"
-                class="mr-2"
-                :label="$t('recipe.ingredient')"
-                auto-grow
-                solo
-                dense
-                rows="1"
-              >
-                <template slot="append">
-                  <v-tooltip right nudge-right="10">
-                    <template #activator="{ on, attrs }">
-                      <v-btn icon small class="mt-n1" v-bind="attrs" v-on="on" @click="toggleShowTitle(index)">
-                        <v-icon>{{ showTitleEditor[index] ? $globals.icons.minus : $globals.icons.createAlt }}</v-icon>
-                      </v-btn>
-                    </template>
-                    <span>{{
-                      showTitleEditor[index] ? $t("recipe.remove-section") : $t("recipe.insert-section")
-                    }}</span>
-                  </v-tooltip>
-                </template>
-                <template slot="append-outer">
-                  <v-icon class="handle">{{ $globals.icons.arrowUpDown }}</v-icon>
-                </template>
-                <v-icon slot="prepend" class="mr-n1" color="error" @click="removeByIndex(value, index)">
-                  {{ $globals.icons.delete }}
-                </v-icon>
-              </v-textarea>
-            </v-row>
-          </div>
-        </transition-group>
-      </draggable>
-
-      <div class="d-flex row justify-end">
-        <RecipeDialogBulkAdd class="mr-2" @bulk-data="addIngredient" />
-        <v-btn color="secondary" dark class="mr-4" @click="addIngredient">
-          <v-icon>{{ $globals.icons.create }}</v-icon>
-        </v-btn>
-      </div>
-    </div>
-    <div v-else>
+    <div>
       <div v-for="(ingredient, index) in value" :key="generateKey('ingredient', index)">
         <h3 v-if="showTitleEditor[index]" class="mt-2">{{ ingredient.title }}</h3>
         <v-divider v-if="showTitleEditor[index]"></v-divider>
         <v-list-item dense @click="toggleChecked(index)">
           <v-checkbox hide-details :value="checked[index]" class="pt-0 my-auto py-auto" color="secondary"> </v-checkbox>
           <v-list-item-content>
-            <VueMarkdown class="ma-0 pa-0 text-subtitle-1 dense-markdown" :source="ingredient.note"> </VueMarkdown>
+            <VueMarkdown class="ma-0 pa-0 text-subtitle-1 dense-markdown" :source="parseIngredientText(ingredient)">
+            </VueMarkdown>
           </v-list-item-content>
         </v-list-item>
       </div>
@@ -72,13 +19,10 @@
 
 <script>
 import VueMarkdown from "@adapttive/vue-markdown";
-import draggable from "vuedraggable";
+import { useFraction } from "@/composables/use-fraction";
 import { utils } from "@/utils";
-import RecipeDialogBulkAdd from "./RecipeDialogBulkAdd";
 export default {
   components: {
-    RecipeDialogBulkAdd,
-    draggable,
     VueMarkdown,
   },
   props: {
@@ -86,11 +30,42 @@ export default {
       type: Array,
       default: () => [],
     },
-
-    edit: {
+    disableAmount: {
       type: Boolean,
       default: false,
     },
+    scale: {
+      type: Number,
+      default: 1,
+    },
+  },
+  setup(props) {
+    const { frac } = useFraction();
+
+    function parseIngredientText(ingredient) {
+      if (props.disableAmount) {
+        return ingredient.note;
+      }
+      const { quantity, food, unit, note } = ingredient;
+
+      let return_qty = "";
+      if (unit?.fraction) {
+        const fraction = frac(quantity * props.scale, 10, true);
+        if (fraction[0] !== undefined && fraction[0] > 0) {
+          return_qty += fraction[0];
+        }
+
+        if (fraction[1] > 0) {
+          return_qty += ` <sup>${fraction[1]}</sup>&frasl;<sub>${fraction[2]}</sub>`;
+        }
+      } else {
+        return_qty = quantity;
+      }
+
+      return `${return_qty} ${unit?.name || " "}  ${food?.name || " "} ${note}`;
+    }
+
+    return { parseIngredientText };
   },
   data() {
     return {
@@ -111,42 +86,14 @@ export default {
     this.showTitleEditor = this.value.map((x) => this.validateTitle(x.title));
   },
   methods: {
-    addIngredient(ingredients = null) {
-      if (ingredients.length) {
-        const newIngredients = ingredients.map((x) => {
-          return {
-            title: null,
-            note: x,
-            unit: null,
-            food: null,
-            disableAmount: true,
-            quantity: 1,
-          };
-        });
-        this.value.push(...newIngredients);
-      } else {
-        this.value.push({
-          title: null,
-          note: "",
-          unit: null,
-          food: null,
-          disableAmount: true,
-          quantity: 1,
-        });
-      }
-    },
     generateKey(item, index) {
       return utils.generateUniqueKey(item, index);
     },
-    updateIndex(data) {
-      this.$emit("input", data);
-    },
+
     toggleChecked(index) {
       this.$set(this.checked, index, !this.checked[index]);
     },
-    removeByIndex(list, index) {
-      list.splice(index, 1);
-    },
+
     validateTitle(title) {
       return !(title === null || title === "");
     },
diff --git a/frontend/composables/use-fraction.ts b/frontend/composables/use-fraction.ts
new file mode 100644
index 000000000000..5d1427f8c615
--- /dev/null
+++ b/frontend/composables/use-fraction.ts
@@ -0,0 +1,76 @@
+/* frac.js (C) 2012-present SheetJS -- http://sheetjs.com */
+/* https://developer.aliyun.com/mirror/npm/package/frac/v/0.3.0 Apache license */
+
+function frac(x: number, D: number, mixed: Boolean) {
+  let n1 = Math.floor(x);
+  let d1 = 1;
+  let n2 = n1 + 1;
+  let d2 = 1;
+  if (x !== n1)
+    while (d1 <= D && d2 <= D) {
+      const m = (n1 + n2) / (d1 + d2);
+      if (x === m) {
+        if (d1 + d2 <= D) {
+          d1 += d2;
+          n1 += n2;
+          d2 = D + 1;
+        } else if (d1 > d2) d2 = D + 1;
+        else d1 = D + 1;
+        break;
+      } else if (x < m) {
+        n2 = n1 + n2;
+        d2 = d1 + d2;
+      } else {
+        n1 = n1 + n2;
+        d1 = d1 + d2;
+      }
+    }
+  if (d1 > D) {
+    d1 = d2;
+    n1 = n2;
+  }
+  if (!mixed) return [0, n1, d1];
+  const q = Math.floor(n1 / d1);
+  return [q, n1 - q * d1, d1];
+}
+function cont(x: number, D: number, mixed: Boolean) {
+  const sgn = x < 0 ? -1 : 1;
+  let B = x * sgn;
+  let P_2 = 0;
+  let P_1 = 1;
+  let P = 0;
+  let Q_2 = 1;
+  let Q_1 = 0;
+  let Q = 0;
+  let A = Math.floor(B);
+  while (Q_1 < D) {
+    A = Math.floor(B);
+    P = A * P_1 + P_2;
+    Q = A * Q_1 + Q_2;
+    if (B - A < 0.00000005) break;
+    B = 1 / (B - A);
+    P_2 = P_1;
+    P_1 = P;
+    Q_2 = Q_1;
+    Q_1 = Q;
+  }
+  if (Q > D) {
+    if (Q_1 > D) {
+      Q = Q_2;
+      P = P_2;
+    } else {
+      Q = Q_1;
+      P = P_1;
+    }
+  }
+  if (!mixed) return [0, sgn * P, Q];
+  const q = Math.floor((sgn * P) / Q);
+  return [q, sgn * P - q * Q, Q];
+}
+
+export const useFraction = function () {
+  return {
+    frac,
+    cont,
+  };
+};
diff --git a/frontend/composables/use-recipe-foods.ts b/frontend/composables/use-recipe-foods.ts
index 884f5016d0bc..dde81c11d3db 100644
--- a/frontend/composables/use-recipe-foods.ts
+++ b/frontend/composables/use-recipe-foods.ts
@@ -1,8 +1,10 @@
-import { useAsync, ref, reactive } from "@nuxtjs/composition-api";
+import { useAsync, ref, reactive, Ref } from "@nuxtjs/composition-api";
 import { useAsyncKey } from "./use-utils";
 import { useApiSingleton } from "~/composables/use-api";
 import { Food } from "~/api/class-interfaces/recipe-foods";
 
+let foodStore: Ref<Food[] | null> | null = null;
+
 export const useFoods = function () {
   const api = useApiSingleton();
   const loading = ref(false);
@@ -23,15 +25,15 @@ export const useFoods = function () {
         return data;
       }, useAsyncKey());
 
-      loading.value = false
+      loading.value = false;
       return units;
     },
     async refreshAll() {
       loading.value = true;
       const { data } = await api.foods.getAll();
 
-      if (data) {
-        foods.value = data;
+      if (data && foodStore) {
+        foodStore.value = data;
       }
 
       loading.value = false;
@@ -44,8 +46,8 @@ export const useFoods = function () {
 
       loading.value = true;
       const { data } = await api.foods.createOne(workingFoodData);
-      if (data && foods.value) {
-        foods.value.push(data);
+      if (data && foodStore?.value) {
+        foodStore.value.push(data);
       } else {
         this.refreshAll();
       }
@@ -61,7 +63,7 @@ export const useFoods = function () {
 
       loading.value = true;
       const { data } = await api.foods.updateOne(workingFoodData.id, workingFoodData);
-      if (data && foods.value) {
+      if (data && foodStore?.value) {
         this.refreshAll();
       }
       loading.value = false;
@@ -69,7 +71,7 @@ export const useFoods = function () {
     async deleteOne(id: string | number) {
       loading.value = true;
       const { data } = await api.foods.deleteOne(id);
-      if (data && foods.value) {
+      if (data && foodStore?.value) {
         this.refreshAll();
       }
     },
@@ -83,9 +85,14 @@ export const useFoods = function () {
       workingFoodData.name = item.name;
       workingFoodData.description = item.description;
     },
+    flushStore() {
+      foodStore = null;
+    },
   };
 
-  const foods = actions.getAll();
+  if (!foodStore) {
+    foodStore = actions.getAll();
+  }
 
-  return { foods, workingFoodData, deleteTargetId, actions, validForm };
+  return { foods: foodStore, workingFoodData, deleteTargetId, actions, validForm };
 };
diff --git a/frontend/composables/use-recipe-units.ts b/frontend/composables/use-recipe-units.ts
index f33dd35bb605..982adb0af58f 100644
--- a/frontend/composables/use-recipe-units.ts
+++ b/frontend/composables/use-recipe-units.ts
@@ -1,8 +1,10 @@
-import { useAsync, ref, reactive } from "@nuxtjs/composition-api";
+import { useAsync, ref, reactive, Ref } from "@nuxtjs/composition-api";
 import { useAsyncKey } from "./use-utils";
 import { useApiSingleton } from "~/composables/use-api";
 import { Unit } from "~/api/class-interfaces/recipe-units";
 
+let unitStore: Ref<Unit[] | null> | null = null;
+
 export const useUnits = function () {
   const api = useApiSingleton();
   const loading = ref(false);
@@ -12,6 +14,7 @@ export const useUnits = function () {
   const workingUnitData = reactive({
     id: 0,
     name: "",
+    fraction: true,
     abbreviation: "",
     description: "",
   });
@@ -24,15 +27,15 @@ export const useUnits = function () {
         return data;
       }, useAsyncKey());
 
-      loading.value = false
+      loading.value = false;
       return units;
     },
     async refreshAll() {
       loading.value = true;
       const { data } = await api.units.getAll();
 
-      if (data) {
-        units.value = data;
+      if (data && unitStore) {
+        unitStore.value = data;
       }
 
       loading.value = false;
@@ -45,8 +48,8 @@ export const useUnits = function () {
 
       loading.value = true;
       const { data } = await api.units.createOne(workingUnitData);
-      if (data && units.value) {
-        units.value.push(data);
+      if (data && unitStore?.value) {
+        unitStore.value.push(data);
       } else {
         this.refreshAll();
       }
@@ -62,7 +65,7 @@ export const useUnits = function () {
 
       loading.value = true;
       const { data } = await api.units.updateOne(workingUnitData.id, workingUnitData);
-      if (data && units.value) {
+      if (data && unitStore?.value) {
         this.refreshAll();
       }
       loading.value = false;
@@ -70,7 +73,7 @@ export const useUnits = function () {
     async deleteOne(id: string | number) {
       loading.value = true;
       const { data } = await api.units.deleteOne(id);
-      if (data && units.value) {
+      if (data && unitStore?.value) {
         this.refreshAll();
       }
     },
@@ -83,12 +86,18 @@ export const useUnits = function () {
     setWorking(item: Unit) {
       workingUnitData.id = item.id;
       workingUnitData.name = item.name;
+      workingUnitData.fraction = item.fraction;
       workingUnitData.abbreviation = item.abbreviation;
       workingUnitData.description = item.description;
     },
+    flushStore() {
+      unitStore = null;
+    },
   };
 
-  const units = actions.getAll();
+  if (!unitStore) {
+    unitStore = actions.getAll();
+  }
 
-  return { units, workingUnitData, deleteTargetId, actions, validForm };
+  return { units: unitStore, workingUnitData, deleteTargetId, actions, validForm };
 };
diff --git a/frontend/composables/use-recipes.ts b/frontend/composables/use-recipes.ts
index 578b9ae8da6d..8229e2f19102 100644
--- a/frontend/composables/use-recipes.ts
+++ b/frontend/composables/use-recipes.ts
@@ -1,5 +1,5 @@
 import { useAsync, ref } from "@nuxtjs/composition-api";
-import {set } from "@vueuse/core"
+import { set } from "@vueuse/core";
 import { useAsyncKey } from "./use-utils";
 import { useApiSingleton } from "~/composables/use-api";
 import { Recipe } from "~/types/api-types/recipe";
@@ -31,7 +31,6 @@ export const useRecipes = (all = false, fetchRecipes = true) => {
     const { data } = await api.recipes.getAll(start, end);
     if (data) {
       set(recipes, data);
-      
     }
   }
 
diff --git a/frontend/pages/recipe/_slug.vue b/frontend/pages/recipe/_slug.vue
index 741bceb96d52..dd6f4ba711ce 100644
--- a/frontend/pages/recipe/_slug.vue
+++ b/frontend/pages/recipe/_slug.vue
@@ -127,8 +127,22 @@
               color="secondary darken-1"
               class="rounded-sm static"
             >
-              {{ recipe.recipeYield }}
+              {{ scaledYield }}
             </v-btn>
+            <template v-if="!recipe.settings.disableAmount">
+              <v-btn color="secondary darken-1" class="mx-1" small @click="scale > 1 ? scale-- : null">
+                <v-icon>
+                  {{ $globals.icons.minus }}
+                </v-icon>
+              </v-btn>
+              <v-btn color="secondary darken-1" small @click="scale++">
+                <v-icon>
+                  {{ $globals.icons.createAlt }}
+                </v-icon>
+              </v-btn>
+            </template>
+            <v-spacer></v-spacer>
+
             <RecipeRating
               v-if="recipe.settings.landscapeView"
               :key="recipe.slug"
@@ -137,9 +151,15 @@
               :slug="recipe.slug"
             />
           </div>
+
           <v-row>
             <v-col cols="12" sm="12" md="4" lg="4">
-              <RecipeIngredients v-if="!form" :value="recipe.recipeIngredient" />
+              <RecipeIngredients
+                v-if="!form"
+                :value="recipe.recipeIngredient"
+                :scale="scale"
+                :disable-amount="recipe.settings.disableAmount"
+              />
 
               <!-- Recipe Categories -->
               <div v-if="$vuetify.breakpoint.mdAndUp" class="mt-5">
@@ -202,7 +222,16 @@
 </template>
 
 <script lang="ts">
-import { defineComponent, ref, useMeta, useRoute, useRouter } from "@nuxtjs/composition-api";
+import {
+  computed,
+  defineComponent,
+  reactive,
+  ref,
+  toRefs,
+  useMeta,
+  useRoute,
+  useRouter,
+} from "@nuxtjs/composition-api";
 // @ts-ignore
 import VueMarkdown from "@adapttive/vue-markdown";
 import draggable from "vuedraggable";
@@ -277,6 +306,19 @@ export default defineComponent({
       }
     }
 
+    const scaledYield = computed(() => {
+      const regMatchNum = /\d+/;
+      const yieldString = recipe.value?.recipeYield;
+      const num = yieldString?.match(regMatchNum);
+
+      if (num && num?.length > 0) {
+        const yieldAsInt = parseInt(num[0]);
+        return yieldString?.replace(num[0], String(yieldAsInt * state.scale));
+      }
+
+      return recipe.value?.recipeYield;
+    });
+
     async function uploadImage(fileObject: File) {
       if (!recipe.value) {
         return;
@@ -320,7 +362,13 @@ export default defineComponent({
       }
     }
 
+    const state = reactive({
+      scale: 1,
+    });
+
     return {
+      scaledYield,
+      ...toRefs(state),
       imageKey,
       recipe,
       api,