src/mlpccg/draft/cube.ts

@@ -40,7 +40,9 @@ export class Cube {
   }
 
   static async fromURL(url: string) {
-    const res = await axios(url);
+    const res = await axios(url, {
+      responseType: "text"
+    });
     return await this.fromList(res.data);
   }
 }

src/mlpccg/draft/i8pcube.ts

@@ -0,0 +1,81 @@
+import { Card, cardFromIDs } from "@/mlpccg";
+import {
+  PackSchema,
+  I8PCubeSchema,
+  I8PPackSchema,
+  I8PFileSchema,
+  DraftSchema
+} from "./types";
+import axios from "axios";
+import { PackBuilder } from "./booster";
+
+export class I8PCube {
+  private pools: Record<string, Card[]>;
+  private packschema: I8PPackSchema[];
+  private problemCount: number;
+
+  constructor(cubefile: I8PCubeSchema) {
+    this.pools = cubefile.Cards;
+    this.packschema = cubefile.Schema;
+    this.problemCount = cubefile.ProblemPackSize;
+  }
+
+  schema(): DraftSchema {
+    return {
+      boosters: {
+        main: 4,
+        problem: 1
+      },
+      factories: {
+        main: new PackBuilder({
+          slots: this.packschema.map(s => ({
+            amount: s.Amount,
+            provider: this.provider(s.Type),
+            alternate: []
+          }))
+        }),
+        problem: new PackBuilder({
+          slots: [
+            {
+              amount: this.problemCount,
+              provider: this.provider("problem"),
+              alternate: []
+            }
+          ]
+        })
+      }
+    };
+  }
+
+  *provider(name: string | "all") {
+    let poolname = name;
+    while (true) {
+      if (name == "all") {
+        const pools = Object.keys(this.pools);
+        const idx = Math.floor(Math.random() * pools.length);
+        poolname = pools[idx];
+      }
+      const pool = this.pools[poolname];
+      if (pool.length <= 0) {
+        return;
+      }
+      const idx = Math.floor(Math.random() * pool.length);
+      const card = pool.splice(idx, 1);
+      yield card[0];
+    }
+  }
+
+  static async fromURL(url: string) {
+    const res = await axios(url);
+    const cubefile = res.data as I8PFileSchema;
+    let cards: Record<string, Card[]> = {};
+    for (const pool in cubefile.Cards) {
+      cards[pool] = await cardFromIDs(cubefile.Cards[pool]);
+    }
+    return new this({
+      Cards: cards,
+      ProblemPackSize: cubefile.ProblemPackSize,
+      Schema: cubefile.Schema
+    });
+  }
+}

src/mlpccg/draft/session.ts

@@ -4,6 +4,7 @@ import { Card } from "@/mlpccg";
 import { Pack, Direction } from "./types";
 import { DraftProvider } from "./provider";
 import { DraftBot } from "./bot";
+import { I8PCube } from "./i8pcube";
 
 export class Session extends EventEmitter {
   private options: DraftOptions;
@@ -179,7 +180,9 @@ export class Session extends EventEmitter {
         return new Session(options, provider);
       }
       case "i8pcube":
-        throw new Error("not implemented");
+        const cube = await I8PCube.fromURL(options.url);
+        const provider = new DraftProvider(cube.schema());
+        return new Session(options, provider);
       default:
         throw new Error("Unknown draft source");
     }

src/mlpccg/draft/types.ts

@@ -71,3 +71,20 @@ export interface DraftSchema {
 }
 
 export type Direction = "cw" | "ccw";
+
+export interface I8PCubeSchema {
+  Schema: I8PPackSchema[];
+  ProblemPackSize: number;
+  Cards: Record<string, Card[]>;
+}
+
+export interface I8PFileSchema {
+  Schema: I8PPackSchema[];
+  ProblemPackSize: number;
+  Cards: Record<string, string[]>;
+}
+
+export interface I8PPackSchema {
+  Amount: number;
+  Type: string;
+}

src/tests/unit/draft.spec.ts

@@ -1,5 +1,5 @@
 import { setupIDBShim, EventHook } from "@/testing";
-import { initDB, loadSets, Database } from "@/mlpccg";
+import { initDB, loadSets, Database, Card } from "@/mlpccg";
 import {
   PackBuilder,
   spanByRarity,
@@ -94,4 +94,38 @@ describe("mlpccg/draft", () => {
     }
     await hook.expect("session-done");
   });
+
+  test("Sessions can load and draft I8PCube files", async () => {
+    expect(Database).toBeTruthy();
+    const session = await Session.create({
+      type: "booster-draft",
+      source: "i8pcube",
+      url: "https://mcg.zyg.ovh/cubes/hamchacube.json",
+      packs: 4,
+      players: 4,
+      spacing: "evenly"
+    });
+    const hook = new EventHook();
+    hook.hookEmitter(session, "start", "session-start");
+    session.assign(["test1"], (_, player) => {
+      hook.hookEmitter(player, "available-picks", "got-cards");
+    });
+    session.start();
+    await hook.expect("session-start");
+    await hook.expect("got-cards", 1000, (cards: Card[]) => {
+      expect(cards).toHaveLength(12);
+      // Check for 2 or more multicolor cards
+      const multicolor = cards.filter(
+        c =>
+          c.Element.length > 1 ||
+          (c.Requirement && Object.keys(c.Requirement).length > 1)
+      );
+      expect(multicolor.length).toBeGreaterThanOrEqual(2);
+      // Check for 2 or more entry cards
+      const entry = cards.filter(
+        c => !c.Requirement || c.Requirement.length < 1
+      );
+      expect(entry.length).toBeGreaterThanOrEqual(2);
+    });
+  });
 });