Moved file

src/application/assetStorage.ts

@@ -0,0 +1,81 @@
+import config from '@/application/config'
+import Dexie from 'dexie'
+import type { AssetDataT } from '@/application/types'
+
+export class AssetStorage {
+  private db: Dexie
+
+  constructor() {
+    this.db = new Dexie('assets')
+    this.db.version(1).stores({
+      assets: 'key, group'
+    })
+  }
+
+  async download(asset: AssetDataT) {
+    try {
+      // Check if the asset already exists, then check if updatedAt is newer
+      const _asset = await this.db.table('assets').get(asset.key)
+      if (_asset && _asset.updatedAt > asset.updatedAt) {
+        return
+      }
+
+      // Download the asset
+      const response = await fetch(config.server_endpoint + asset.data)
+      const blob = await response.blob()
+
+      // Store the asset in the database
+      await this.db.table('assets').put({
+        key: asset.key,
+        data: blob,
+        group: asset.group,
+        updatedAt: asset.updatedAt,
+        originX: asset.originX,
+        originY: asset.originY,
+        isAnimated: asset.isAnimated,
+        frameRate: asset.frameRate,
+        frameWidth: asset.frameWidth,
+        frameHeight: asset.frameHeight,
+        frameCount: asset.frameCount
+      })
+    } catch (error) {
+      console.error(`Failed to add asset ${asset.key}:`, error)
+    }
+  }
+
+  async get(key: string) {
+    try {
+      const asset = await this.db.table('assets').get(key)
+      if (asset) {
+        return {
+          ...asset,
+          data: URL.createObjectURL(asset.data) // Convert blob to data URL
+        }
+      }
+    } catch (error) {
+      console.error(`Failed to retrieve asset ${key}:`, error)
+    }
+    return null
+  }
+
+  async getByGroup(group: string) {
+    try {
+      const assets = await this.db.table('assets').where('group').equals(group).toArray()
+      return assets.map((asset) => ({
+        ...asset,
+        data: URL.createObjectURL(asset.data) // Convert blob to data URL
+      }))
+    } catch (error) {
+      console.error(`Failed to retrieve assets for group ${group}:`, error)
+      return []
+    }
+  }
+
+  async delete(key: string) {
+    try {
+      await this.db.table('assets').delete(key)
+    } catch (error) {
+      console.error(`Failed to delete asset ${key}:`, error)
+    }
+  }
+}