Merge pull request #269 from the-hideout/archived-prices-groundwork

lay groundwork for archived prices

datasources/archived-prices.js

@@ -0,0 +1,23 @@
+const WorkerKVSplit = require('../utils/worker-kv-split');
+
+class ArchivedPricesAPI extends WorkerKVSplit {
+    constructor(dataSource) {
+        super('archived_price_data', dataSource);
+    }
+
+    async getByItemId(context, itemId) {
+        await this.init(context, itemId);
+        const data = await this.getKVData(context, itemId);
+        if (!data) {
+            return Promise.reject(new Error('Archived prices data is empty'));
+        }
+
+        let prices = data.ArchivedPrices[itemId];
+        if (!prices) {
+            return [];
+        }
+        return prices;
+    }
+}
+
+module.exports = ArchivedPricesAPI;

datasources/index.js

@@ -2,6 +2,7 @@ const BartersAPI = require('./barters');
 const CraftsAPI = require('./crafts');
 const HideoutAPI = require('./hideout');
 const HistoricalPricesAPI = require('./historical-prices');
+const ArchivedPricesAPI = require('./archived-prices');
 const ItemsAPI = require('./items');
 const MapAPI = require('./maps');
 const SchemaAPI = require('./schema');
@@ -16,6 +17,7 @@ class DataSource {
         this.craft = new CraftsAPI(this);
         this.hideout = new HideoutAPI(this);
         this.historicalPrice = new HistoricalPricesAPI(this);
+        this.archivedPrice = new ArchivedPricesAPI(this);
         this.item = new ItemsAPI(this);
         this.map = new MapAPI(this);
         this.schema = new SchemaAPI(this);
@@ -34,6 +36,7 @@ class DataSource {
             craft: this.craft,
             hideout: this.hideout,
             historicalPrice: this.historicalPrice,
+            archivedPrice: this.archivedPrice,
             item: this.item,
             map: this.map,
             schema: this.schema,

resolvers/itemResolver.js

@@ -78,6 +78,9 @@ module.exports = {
         historicalItemPrices(obj, args, context, info) {
             return context.util.paginate(context.data.historicalPrice.getByItemId(context, args.id, args.days), args);
         },
+        /*archivedItemPrices(obj, args, context, info) {
+            return context.util.paginate(context.data.archivedPrice.getByItemId(context, args.id), args);
+        },*/
         armorMaterials(obj, args, context) {
             return context.data.item.getArmorMaterials(context);
         },

schema.js

@@ -1306,7 +1306,8 @@ interface Vendor {
 #union Vendor = TraderOffer | FleaMarket
 
 type Query {
-  ammo(lang: LanguageCode, limit: Int, offset: Int): [Ammo]  
+  ammo(lang: LanguageCode, limit: Int, offset: Int): [Ammo]
+  #archivedItemPrices(id: ID!, limit: Int, offset: Int): [historicalPricePoint]!
   barters(lang: LanguageCode, limit: Int, offset: Int): [Barter]
   bosses(lang: LanguageCode, name: [String!], limit: Int, offset: Int): [MobInfo]
   crafts(lang: LanguageCode, limit: Int, offset: Int): [Craft]

utils/worker-kv-split.js

@@ -0,0 +1,39 @@
+const WorkerKV = require('./worker-kv');
+
+class WorkerKVSplit {
+    constructor(kvName, dataSource, idLength = 1) {
+        this.dataExpires = false;
+        this.kvs = {};
+        this.idLength = idLength;
+        const hexKeys = [];
+        const maxDecimalValue = parseInt('f'.padEnd(idLength, 'f'), 16);
+        for (let i = 0; i <= maxDecimalValue; i++) {
+            const hexValue = i.toString(16).padStart(idLength, '0');
+            hexKeys.push(hexValue);
+        }
+        for (const hexKey of hexKeys) {
+            this.kvs[hexKey] = new WorkerKV(`${kvName}_${hexKey}`, dataSource);
+        }
+    }
+
+    getIdSuffix(id) {
+        return id.substring(id.length-this.idLength, id.length);
+    }
+
+    async init(context, id) {
+        const kvId = this.getIdSuffix(id);
+        return this.kvs[kvId].init(context).then(() => {
+            if (this.kvs[kvId].cache?.expiration) {
+                this.dataExpiress = new Date(this.kvs[kvId].cache.expiration).valueOf();
+            }
+        });
+    }
+
+    async getKVData(context, id) {
+        await this.init(context, id);
+        const kvId = this.getIdSuffix(id);
+        return this.kvs[kvId].cache;
+    }
+}
+
+module.exports = WorkerKVSplit;