From e238485b21220e43d02d2e654a1587d44ef7ac6c Mon Sep 17 00:00:00 2001
From: Hamcha <hamcha@crunchy.rocks>
Date: Wed, 11 Sep 2019 17:55:58 +0200
Subject: [PATCH] Add cube

---
 src/mlpccg/database.ts   |  9 ++++++++
 src/mlpccg/draft/cube.ts | 47 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 56 insertions(+)
 create mode 100644 src/mlpccg/draft/cube.ts

diff --git a/src/mlpccg/database.ts b/src/mlpccg/database.ts
index 0fdb78b..088f5ab 100644
--- a/src/mlpccg/database.ts
+++ b/src/mlpccg/database.ts
@@ -151,3 +151,12 @@ export async function getCards(filter: CardFilter) {
   });
   return await results.toArray();
 }
+
+export async function cardFromIDs(cardIDs: string[]): Promise<Card[]> {
+  let table = Database.cards;
+  //TODO Replace with .bulkGet when upgrading to Dexie 3.x
+  return await table
+    .where("ID")
+    .anyOf(cardIDs)
+    .toArray();
+}
diff --git a/src/mlpccg/draft/cube.ts b/src/mlpccg/draft/cube.ts
new file mode 100644
index 0000000..b92338e
--- /dev/null
+++ b/src/mlpccg/draft/cube.ts
@@ -0,0 +1,47 @@
+import { Card } from "../types";
+import { getCards, cardFromIDs } from "../database";
+import axios from "axios";
+import { PackSchema } from "./types";
+
+export class Cube {
+  private pool: Card[];
+
+  constructor(pool: Card[]) {
+    this.pool = pool;
+  }
+
+  schema(): PackSchema {
+    return {
+      slots: [
+        {
+          amount: 15,
+          provider: this.provider(),
+          alternate: []
+        }
+      ]
+    };
+  }
+
+  *provider() {
+    while (this.pool.length > 0) {
+      const idx = Math.floor(Math.random() * this.pool.length);
+      const card = this.pool.splice(idx, 1);
+      yield card[0];
+    }
+  }
+
+  static async fromCardIDs(cardIDs: string[]): Promise<Cube> {
+    const cards = await cardFromIDs(cardIDs);
+    return new this(cards);
+  }
+
+  static async fromList(list: string): Promise<Cube> {
+    const ids = list.split("\n").map(x => x.trim());
+    return await this.fromCardIDs(ids);
+  }
+
+  static async fromURL(url: string) {
+    const res = await axios(url);
+    return await this.fromList(res.data);
+  }
+}