/*
<MODULE_CONTRACT>
<purpose>
Unit tests for initiative covering buildInitiativeNodes; buildInitiativesListNode. It also guards the documented public contract and regression-sensitive edge cases.
</purpose>
<non-goals>
  <item>Not a contract source of truth — the module under test owns the authoritative behavior; fixtures are minimal scaffolding only.</item>
</non-goals>
</MODULE_CONTRACT>
<CHANGE_SUMMARY>
  <item>RFC-1311: Compass header sweep — declares the initiative suite's contract for test-file scaffold coverage.</item>
</CHANGE_SUMMARY>
*/

import { describe, expect, it } from "vitest";
import { buildInitiativeNodes, buildInitiativesListNode } from "../initiative.ts";
import { createJsonLdContext } from "../context.ts";
import { makePage } from "../../tests/helpers.ts";

describe("buildInitiativeNodes", () => {
  it("returns empty array when no initiatives", () => {
    const page = makePage();
    const ctx = createJsonLdContext(page);
    expect(buildInitiativeNodes(ctx)).toEqual([]);
  });

  it("builds Thing/Project nodes for each initiative", () => {
    const page = makePage({
      initiatives: [
        { id: "i1", name: "Project Alpha", summary: "First project" },
        { id: "i2", name: "Project Beta", summary: "Second project" },
      ],
    });
    const ctx = createJsonLdContext(page);
    const nodes = buildInitiativeNodes(ctx);
    expect(nodes).toHaveLength(2);
    expect(nodes[0]["@type"]).toEqual(["Thing", "Project"]);
    expect(nodes[0].name).toBe("Project Alpha");
    expect(nodes[0].description).toBe("First project");
    expect(nodes[1].name).toBe("Project Beta");
  });
});

describe("buildInitiativesListNode", () => {
  it("returns null when no initiatives", () => {
    const page = makePage();
    const ctx = createJsonLdContext(page);
    expect(buildInitiativesListNode(ctx)).toBeNull();
  });

  it("builds ItemList with positioned initiatives", () => {
    const page = makePage({
      initiatives: [
        { id: "i1", name: "Project Alpha", summary: "First" },
        { id: "i2", name: "Project Beta", summary: "Second" },
      ],
    });
    const ctx = createJsonLdContext(page);
    const node = buildInitiativesListNode(ctx);
    expect(node).not.toBeNull();
    expect(node!["@type"]).toBe("ItemList");
    expect(node!.itemListElement).toHaveLength(2);
    expect(node as Record<string, unknown>).toMatchObject({
      itemListElement: [
        { position: 1, name: "Project Alpha" },
        { position: 2, name: "Project Beta" },
      ],
    });
  });
});