"use strict";

const test = require("node:test");
const assert = require("node:assert/strict");

const { trySafely } = require("../lib/trySafely");

test("成功時はokがtrueで結果を返し、onErrorは呼ばれない", async () => {
    let onErrorCalls = 0;
    const result = await trySafely(
        async () => "done",
        () => {
            onErrorCalls += 1;
        }
    );

    assert.equal(result.ok, true);
    assert.equal(result.value, "done");
    assert.equal(onErrorCalls, 0);
});

test("失敗時はokがfalseでonErrorが呼ばれ、例外は外に漏れない", async () => {
    const capturedErrors = [];
    const result = await trySafely(
        async () => {
            throw new Error("boom");
        },
        (err) => {
            capturedErrors.push(err);
        }
    );

    assert.equal(result.ok, false);
    assert.equal(result.error.message, "boom");
    assert.equal(capturedErrors.length, 1);
    assert.equal(capturedErrors[0].message, "boom");
});

test("1つ目が失敗しても2つ目は独立して必ず実行される", async () => {
    const calls = [];

    const r1 = await trySafely(
        async () => {
            calls.push("a-start");
            throw new Error("fail-a");
        },
        () => calls.push("a-error")
    );
    const r2 = await trySafely(
        async () => {
            calls.push("b-start");
            return "b-done";
        },
        () => calls.push("b-error")
    );

    assert.deepEqual(calls, ["a-start", "a-error", "b-start"]);
    assert.equal(r1.ok, false);
    assert.equal(r2.ok, true);
    assert.equal(r2.value, "b-done");
});