From bd5b42f4d2c1bca0ab181478a2960fb69c7e3f04 Mon Sep 17 00:00:00 2001
From: Jan Klattenhoff <jan@kjan.de>
Date: Tue, 24 Sep 2024 08:34:01 +0200
Subject: [PATCH] feat(star-rating): implement dynamic star rating display

---
 .../star-rating/star-rating.component.html    | 110 +-----------------
 src/app/star-rating/star-rating.component.ts  |  22 +++-
 2 files changed, 19 insertions(+), 113 deletions(-)

diff --git a/src/app/star-rating/star-rating.component.html b/src/app/star-rating/star-rating.component.html
index b1737ca..694d218 100644
--- a/src/app/star-rating/star-rating.component.html
+++ b/src/app/star-rating/star-rating.component.html
@@ -1,7 +1,7 @@
 <div class="flex items-center">
-  <div class="flex flex-inline">
+  <div *ngFor="let star of getRatingArray()" class="flex flex-inline">
     <svg
-      [ngClass]="{ 'hidden': !(rating > 0 && rating < 1) }"
+      [ngClass]="{ hidden: !(star == 0.5) }"
       class="w-4 h-4 text-yellow-300 me-1"
       aria-hidden="true"
       xmlns="http://www.w3.org/2000/svg"
@@ -13,111 +13,7 @@
       />
     </svg>
     <svg
-      [ngClass]="{ 'hidden': !(rating >= 1) }"
-      class="w-4 h-4 text-yellow-300 me-1"
-      aria-hidden="true"
-      xmlns="http://www.w3.org/2000/svg"
-      fill="currentColor"
-      viewBox="0 0 22 20"
-    >
-      <path
-        d="M20.924 7.625a1.523 1.523 0 0 0-1.238-1.044l-5.051-.734-2.259-4.577a1.534 1.534 0 0 0-2.752 0L7.365 5.847l-5.051.734A1.535 1.535 0 0 0 1.463 9.2l3.656 3.563-.863 5.031a1.532 1.532 0 0 0 2.226 1.616L11 17.033l4.518 2.375a1.534 1.534 0 0 0 2.226-1.617l-.863-5.03L20.537 9.2a1.523 1.523 0 0 0 .387-1.575Z"
-      />
-    </svg>
-  </div>
-  <div class="flex flex-inline">
-    <svg
-      [ngClass]="{ 'hidden': !(rating > 1 && rating < 2) }"
-      class="w-4 h-4 text-yellow-300 me-1"
-      aria-hidden="true"
-      xmlns="http://www.w3.org/2000/svg"
-      fill="currentColor"
-      viewBox="0 0 22 20"
-    >
-      <path
-        d="M13 4.024v-.005c0-.053.002-.353-.217-.632a1.01 1.01 0 0 0-1.176-.315c-.192.076-.315.193-.35.225c-.052.05-.094.1-.122.134a4 4 0 0 0-.31.457c-.207.343-.484.84-.773 1.375a169 169 0 0 0-1.606 3.074h-.002l-4.599.367c-1.775.14-2.495 2.339-1.143 3.488L6.17 15.14l-1.06 4.406c-.412 1.72 1.472 3.078 2.992 2.157l3.94-2.388c.592-.359.958-.996.958-1.692v-13.6Zm-2.002 0v.025z"
-      />
-    </svg>
-    <svg
-      [ngClass]="{ 'hidden': !(rating >= 2) }"
-      class="w-4 h-4 text-yellow-300 me-1"
-      aria-hidden="true"
-      xmlns="http://www.w3.org/2000/svg"
-      fill="currentColor"
-      viewBox="0 0 22 20"
-    >
-      <path
-        d="M20.924 7.625a1.523 1.523 0 0 0-1.238-1.044l-5.051-.734-2.259-4.577a1.534 1.534 0 0 0-2.752 0L7.365 5.847l-5.051.734A1.535 1.535 0 0 0 1.463 9.2l3.656 3.563-.863 5.031a1.532 1.532 0 0 0 2.226 1.616L11 17.033l4.518 2.375a1.534 1.534 0 0 0 2.226-1.617l-.863-5.03L20.537 9.2a1.523 1.523 0 0 0 .387-1.575Z"
-      />
-    </svg>
-  </div>
-  <div class="flex flex-inline">
-    <svg
-      [ngClass]="{ 'hidden': !(rating > 2 && rating < 3) }"
-      class="w-4 h-4 text-yellow-300 me-1"
-      aria-hidden="true"
-      xmlns="http://www.w3.org/2000/svg"
-      fill="currentColor"
-      viewBox="0 0 22 20"
-    >
-      <path
-        d="M13 4.024v-.005c0-.053.002-.353-.217-.632a1.01 1.01 0 0 0-1.176-.315c-.192.076-.315.193-.35.225c-.052.05-.094.1-.122.134a4 4 0 0 0-.31.457c-.207.343-.484.84-.773 1.375a169 169 0 0 0-1.606 3.074h-.002l-4.599.367c-1.775.14-2.495 2.339-1.143 3.488L6.17 15.14l-1.06 4.406c-.412 1.72 1.472 3.078 2.992 2.157l3.94-2.388c.592-.359.958-.996.958-1.692v-13.6Zm-2.002 0v.025z"
-      />
-    </svg>
-    <svg
-      [ngClass]="{ 'hidden': !(rating >= 3) }"
-      class="w-4 h-4 text-yellow-300 me-1"
-      aria-hidden="true"
-      xmlns="http://www.w3.org/2000/svg"
-      fill="currentColor"
-      viewBox="0 0 22 20"
-    >
-      <path
-        d="M20.924 7.625a1.523 1.523 0 0 0-1.238-1.044l-5.051-.734-2.259-4.577a1.534 1.534 0 0 0-2.752 0L7.365 5.847l-5.051.734A1.535 1.535 0 0 0 1.463 9.2l3.656 3.563-.863 5.031a1.532 1.532 0 0 0 2.226 1.616L11 17.033l4.518 2.375a1.534 1.534 0 0 0 2.226-1.617l-.863-5.03L20.537 9.2a1.523 1.523 0 0 0 .387-1.575Z"
-      />
-    </svg>
-  </div>
-  <div class="flex flex-inline">
-    <svg
-      [ngClass]="{ 'hidden': !(rating > 3 && rating < 4) }"
-      class="w-4 h-4 text-yellow-300 me-1"
-      aria-hidden="true"
-      xmlns="http://www.w3.org/2000/svg"
-      fill="currentColor"
-      viewBox="0 0 22 20"
-    >
-      <path
-        d="M13 4.024v-.005c0-.053.002-.353-.217-.632a1.01 1.01 0 0 0-1.176-.315c-.192.076-.315.193-.35.225c-.052.05-.094.1-.122.134a4 4 0 0 0-.31.457c-.207.343-.484.84-.773 1.375a169 169 0 0 0-1.606 3.074h-.002l-4.599.367c-1.775.14-2.495 2.339-1.143 3.488L6.17 15.14l-1.06 4.406c-.412 1.72 1.472 3.078 2.992 2.157l3.94-2.388c.592-.359.958-.996.958-1.692v-13.6Zm-2.002 0v.025z"
-      />
-    </svg>
-    <svg
-      [ngClass]="{ 'hidden': !(rating >= 4) }"
-      class="w-4 h-4 text-yellow-300 me-1"
-      aria-hidden="true"
-      xmlns="http://www.w3.org/2000/svg"
-      fill="currentColor"
-      viewBox="0 0 22 20"
-    >
-      <path
-        d="M20.924 7.625a1.523 1.523 0 0 0-1.238-1.044l-5.051-.734-2.259-4.577a1.534 1.534 0 0 0-2.752 0L7.365 5.847l-5.051.734A1.535 1.535 0 0 0 1.463 9.2l3.656 3.563-.863 5.031a1.532 1.532 0 0 0 2.226 1.616L11 17.033l4.518 2.375a1.534 1.534 0 0 0 2.226-1.617l-.863-5.03L20.537 9.2a1.523 1.523 0 0 0 .387-1.575Z"
-      />
-    </svg>
-  </div>
-  <div class="flex flex-inline">
-    <svg
-      [ngClass]="{ 'hidden': !(rating > 4 && rating < 5) }"
-      class="w-4 h-4 text-yellow-300 me-1"
-      aria-hidden="true"
-      xmlns="http://www.w3.org/2000/svg"
-      fill="currentColor"
-      viewBox="0 0 22 20"
-    >
-      <path
-        d="M13 4.024v-.005c0-.053.002-.353-.217-.632a1.01 1.01 0 0 0-1.176-.315c-.192.076-.315.193-.35.225c-.052.05-.094.1-.122.134a4 4 0 0 0-.31.457c-.207.343-.484.84-.773 1.375a169 169 0 0 0-1.606 3.074h-.002l-4.599.367c-1.775.14-2.495 2.339-1.143 3.488L6.17 15.14l-1.06 4.406c-.412 1.72 1.472 3.078 2.992 2.157l3.94-2.388c.592-.359.958-.996.958-1.692v-13.6Zm-2.002 0v.025z"
-      />
-    </svg>
-    <svg
-      [ngClass]="{ 'hidden': !(rating >= 5) }"
+      [ngClass]="{ hidden: !(star == 1) }"
       class="w-4 h-4 text-yellow-300 me-1"
       aria-hidden="true"
       xmlns="http://www.w3.org/2000/svg"
diff --git a/src/app/star-rating/star-rating.component.ts b/src/app/star-rating/star-rating.component.ts
index 30d6475..2a0fdf3 100644
--- a/src/app/star-rating/star-rating.component.ts
+++ b/src/app/star-rating/star-rating.component.ts
@@ -1,19 +1,29 @@
-import { NgClass } from '@angular/common';
+import { NgClass, NgFor } from '@angular/common';
 import { Component, Input } from '@angular/core';
 
 @Component({
   selector: 'app-star-rating',
   standalone: true,
-  imports: [NgClass],
+  imports: [NgClass, NgFor],
   templateUrl: './star-rating.component.html',
   styleUrl: './star-rating.component.css'
 })
 export class StarRatingComponent {
   @Input() public rating: number = 0;
-  public stars: number[] = [];
 
-  public setRating(rating: number) {
-    this.rating = rating;
-    this.stars = Array(rating).fill(0);
+  public getRatingArray(): number[] {
+    let stars = [];
+    for (let i = 0; i < 5; i++) {
+      if (i < this.rating) {
+        if (i + 0.5 == this.rating) {
+          stars.push(0.5);
+        } else {
+          stars.push(1);
+        }
+      } else {
+        stars.push(0);
+      }
+    }
+    return stars;
   }
 }