"use strict";

const fs = require("node:fs");
const os = require("node:os");
const path = require("node:path");
const test = require("node:test");
const assert = require("node:assert/strict");
const { loadDotEnv } = require("../src/envLoader");

test("loadDotEnv parses quoted values and keeps existing env", () => {
  const suffix = `${Date.now()}_${Math.random().toString(16).slice(2)}`;
  const plainKey = `AIRPLANE_TEST_PLAIN_${suffix}`;
  const quotedKey = `AIRPLANE_TEST_QUOTED_${suffix}`;
  const singleQuotedKey = `AIRPLANE_TEST_SINGLE_${suffix}`;
  const existingKey = `AIRPLANE_TEST_EXISTING_${suffix}`;
  const invalidKey = "INVALID-NAME";

  const envPath = path.join(os.tmpdir(), `airplane_${suffix}.env`);
  const envContent = [
    `# comment`,
    `${plainKey}=hello`,
    `${quotedKey}=\"line1\\nline2\"`,
    `${singleQuotedKey}='with space'`,
    `${existingKey}=from_file`,
    `${invalidKey}=ignored`,
    ``,
  ].join("\n");

  process.env[existingKey] = "from_process";
  fs.writeFileSync(envPath, envContent, "utf8");

  try {
    loadDotEnv(envPath);

    assert.equal(process.env[plainKey], "hello");
    assert.equal(process.env[quotedKey], "line1\nline2");
    assert.equal(process.env[singleQuotedKey], "with space");
    assert.equal(process.env[existingKey], "from_process");
  } finally {
    delete process.env[plainKey];
    delete process.env[quotedKey];
    delete process.env[singleQuotedKey];
    delete process.env[existingKey];
    if (fs.existsSync(envPath)) {
      fs.unlinkSync(envPath);
    }
  }
});