import "jest";
import { buildNode, DovetailNodeFactory } from "../../__specs__/buildEditorState";
import "../../__specs__/expect.toMatchFragment";
import "../../__specs__/expect.toMatchSlice";
import { Bias } from "../../types";
import { WedgeSelection } from "../WedgeSelection";

describe("#findFrom", () => {
  function test(nodeFactory: DovetailNodeFactory, bias: Bias, fromRef = "x", toRef = "y") {
    const { node: doc, refMap } = buildNode(nodeFactory);
    const sel = WedgeSelection.findFrom(doc.resolve(refMap.get(fromRef)!), bias == Bias.FORWARD ? 1 : -1);
    expect(sel).not.toBe(null);
    expect(sel!.$anchor.pos).toBe(refMap.get(toRef)!);
  }

  it("finds position backwards between table and start of doc", () =>
    test(({ doc, table, tr, td, p }) => doc("{y}", table(tr(td(p("{x}"))))), Bias.BACKWARD));

  it("finds position forwards between table and end of doc", () =>
    test(({ doc, table, tr, td, p }) => doc(table(tr(td(p("{x}")))), "{y}"), Bias.FORWARD));

  it("finds position forwards between attachment and end of cell", () =>
    test(({ doc, table, tr, td, at }) => doc(table(tr(td(at({ id: "000" }), "{x}{y}")))), Bias.FORWARD));

  it("finds position forwards between attachment and end of cell (with p trailing table)", () =>
    test(({ doc, table, tr, td, p, at }) => doc(table(tr(td(at({ id: "000" }), "{x}{y}"))), p()), Bias.FORWARD));

  it("finds position backwards between two tables", () =>
    test(({ doc, table, tr, td, p }) => doc(table(tr(td(p()))), "{y}", table(tr(td(p("{x}"))))), Bias.BACKWARD));

  it("finds position forwards between two tables", () =>
    test(({ doc, table, tr, td, p }) => doc(table(tr(td(p("{x}")))), "{y}", table(tr(td(p())))), Bias.FORWARD));
});

describe("#valid", () => {
  function test(nodeFactory: DovetailNodeFactory, expected = true, ref = "x") {
    const { node: doc, refMap } = buildNode(nodeFactory);
    expect(WedgeSelection.valid(doc.resolve(refMap.get(ref)!))).toBe(expected);
  }

  it("between attachment and end of cell", () =>
    test(({ doc, table, tr, td, at }) => doc(table(tr(td(at({ id: "000" }), "{x}"))))));

  it("between attachment and end of cell (with p trailing table)", () =>
    test(({ doc, table, tr, td, p, at }) => doc(table(tr(td(at({ id: "000" }), "{x}"))), p())));
});