import { describe, expect, it } from "vitest";

import { lookupTable } from "@/rules/tables";

import {
  findCreatureByName,
  findItemById,
  findRoomTemplateForLookup,
  findTableByCode,
} from "./contentHelpers";
import { sampleContentPack } from "./sampleContentPack";

function createSequenceRoller(values: number[]) {
  let index = 0;

  return () => {
    const next = values[index];
    index += 1;
    return next;
  };
}

describe("level 1 content helpers", () => {
  it("finds encoded level 1 encounter tables by code", () => {
    const table = findTableByCode(sampleContentPack, "L1A");

    expect(table.name).toBe("Level 1 Animals");
    expect(table.entries).toHaveLength(6);
  });

  it("resolves a small room template from a table lookup", () => {
    const lookup = lookupTable(findTableByCode(sampleContentPack, "L1SR"), {
      roller: createSequenceRoller([3, 4]),
    });

    const roomTemplate = findRoomTemplateForLookup(sampleContentPack, lookup);

    expect(lookup.roll.total).toBe(7);
    expect(roomTemplate.title).toBe("Murtayne Effigy");
    expect(roomTemplate.roomClass).toBe("small");
  });

  it("resolves a large room template from a table lookup", () => {
    const lookup = lookupTable(findTableByCode(sampleContentPack, "L1LR"), {
      roller: createSequenceRoller([5, 5]),
    });

    const roomTemplate = findRoomTemplateForLookup(sampleContentPack, lookup);

    expect(lookup.roll.total).toBe(10);
    expect(roomTemplate.title).toBe("Slate Shrine");
    expect(roomTemplate.roomClass).toBe("large");
  });

  it("finds a creature definition by display name", () => {
    const creature = findCreatureByName(sampleContentPack, "Guard");

    expect(creature.id).toBe("creature.level1.guard");
    expect(creature.hp).toBeGreaterThan(0);
  });

  it("finds a loot item definition by id", () => {
    const item = findItemById(sampleContentPack, "item.silver-clasp");

    expect(item.name).toBe("Silver Clasp");
    expect(item.itemType).toBe("treasure");
  });
});