refactor(dashboard,history): replace ViewModels with Pinia stores and improve backend

app/Repositories/ZonneplanPriceRepository.php

@@ -13,39 +13,74 @@ use Override;
 
 class ZonneplanPriceRepository implements ContractsPriceRepository
 {
+    private int $cacheTtl;
+    private string $cachePrefix;
+
     public function __construct(
         public PriceClient $client
-    ) {}
+    ) {
+        $this->cacheTtl = config('cache_prices.ttl', 3600);
+        $this->cachePrefix = config('cache_prices.prefix', 'zonneplan:');
+    }
 
     #[Override]
     public function retrieveElectricity(): Collection
     {
-        $data = Cache::remember('electricity:upcomming', 3600, fn () => $this->client->getElectricityPrices()->toArray());
+        $raw = $this->remember(
+            'electricity:upcoming',
+            fn () => $this->client->getElectricityPrices()->toArray()
+        );
 
-        return ElectricityData::collect($data, Collection::class);
+        return ElectricityData::collect($raw, Collection::class);
     }
 
     #[Override]
     public function retrieveGas(): Collection
     {
-        $data = Cache::remember('gas:upcomming', 3600, fn () => $this->client->getGasPrices()->toArray());
+        $raw = $this->remember(
+            'gas:upcoming',
+            fn () => $this->client->getGasPrices()->toArray()
+        );
 
-        return GasData::collect($data, Collection::class);
+        return GasData::collect($raw, Collection::class);
     }
 
     #[Override]
     public function retrieveElectricityForDate(Carbon $date): Collection
     {
-        $data = Cache::remember('electricity:'.$date->format('Y-m-d'), 3600, fn () => $this->client->getElectricityPricesForDate($date)->toArray());
+        $raw = $this->remember(
+            'electricity:' . $date->format('Y-m-d'),
+            fn () => $this->client->getElectricityPricesForDate($date)->toArray()
+        );
 
-        return GasData::collect($data, Collection::class);
+        return ElectricityData::collect($raw, Collection::class);
     }
 
     #[Override]
     public function retrieveGasForDate(Carbon $date): Collection
     {
-        $data = Cache::remember('gas:'.$date->format('Y-m-d'), 3600, fn () => $this->client->getGasPricesForDate($date)->toArray());
+        $raw = $this->remember(
+            'gas:' . $date->format('Y-m-d'),
+            fn () => $this->client->getGasPricesForDate($date)->toArray()
+        );
 
-        return GasData::collect($data, Collection::class);
+        return GasData::collect($raw, Collection::class);
+    }
+
+    /**
+     * Cache via JSON encoding to ensure clean array structure on retrieval.
+     *
+     * @param  callable(): array  $callback
+     * @return array
+     */
+    private function remember(string $key, callable $callback): array
+    {
+        $cached = Cache::remember(
+            $this->cachePrefix . $key,
+            $this->cacheTtl,
+            fn () => json_encode($callback())
+        );
+
+        return json_decode($cached, true);
     }
 }