import { beforeEach, describe, expect, it, vi } from "vitest";
import becca_mocking from "../../spec/support/becca_mocking.js";
import becca from "../becca/becca.js";
import BBranch from "../becca/entities/bbranch.js";
import BNote from "../becca/entities/bnote.js";
import tree from "./tree.js";
import cls from "./cls.js";

describe("Tree", () => {
    let rootNote!: any;

    beforeEach(() => {
        becca.reset();

        rootNote = new becca_mocking.NoteBuilder(new BNote({
            noteId: "root",
            title: "root",
            type: "text"
        }))
        new BBranch({
            branchId: "none_root",
            noteId: "root",
            parentNoteId: "none",
            notePosition: 10
        });

        vi.mock("./sql.js", () => {
            return {
                default: {
                    transactional: (cb) => {
                        cb();
                    },
                    execute: (...args) => { },
                    replace: (...args) => { },
                    getMap: (...args) => { }
                }
            }
        });

        vi.mock("./sql_init.js", () => {
            return {
                dbReady: () => { console.log("Hello world") }
            }
        });
    });

    it("custom sort order is idempotent", () => {
        rootNote.label("sorted", "order");

        // Add values which have a defined order.
        for (let i=0; i<=5; i++) {
            rootNote.child(becca_mocking.note(String(i)).label("order", String(i)));
        }

        // Add a few values which have no defined order.
        for (let i=6; i<10; i++) {
            rootNote.child(becca_mocking.note(String(i)));
        }

        const expectedOrder = [ '0', '1', '2', '3', '4', '5', '6', '7', '8', '9' ];

        // Sort a few times to ensure that the resulting order is the same.
        for (let i=0; i<5; i++) {
            cls.init(() => {
                tree.sortNotesIfNeeded(rootNote.note.noteId);
            });

            const order = rootNote.note.children.map((child) => child.title);
            expect(order).toStrictEqual(expectedOrder);
        }
    });
});