import os

const js_global_export_test_vexe = @VEXE
const js_global_export_test_vroot = @VMODROOT
const js_global_export_test_dir = os.join_path(os.vtmp_dir(), '_js_global_export_test')
const js_global_export_test_source = [
    '@[has_globals]',
    'module main',
    '',
    "@[export: 'TIC']",
    '__global tic = fn (a int) int {',
    '\treturn a + 1',
    '}',
    '',
    'fn main() {',
    '\tassert tic(2) == 3',
    '}',
].join_lines()

fn testsuite_end() {
    os.rmdir_all(js_global_export_test_dir) or {}
}

fn test_js_backend_supports_exported_global_aliases() {
    os.chdir(js_global_export_test_vroot) or { panic(err) }
    os.mkdir_all(js_global_export_test_dir) or { panic(err) }
    source_path := os.join_path(js_global_export_test_dir, 'global_export.v')
    js_path := os.join_path(js_global_export_test_dir, 'global_export.js')
    os.write_file(source_path, js_global_export_test_source) or { panic(err) }
    compile_res :=
        os.execute('${os.quoted_path(js_global_export_test_vexe)} -b js -w -o ${os.quoted_path(js_path)} ${os.quoted_path(source_path)}')
    if compile_res.exit_code != 0 {
        panic(compile_res.output)
    }
    generated := os.read_file(js_path) or { panic(err) }
    assert generated.contains(r'Object.defineProperty($global,"tic", {')
    assert generated.contains('Object.defineProperty(globalThis,"TIC", {')
    assert generated.contains(r'return $global["tic"];')
    assert generated.contains(r'$global["tic"] = value;')
    node_res := os.execute('node --version')
    if node_res.exit_code == 0 {
        run_res := os.execute('node ${os.quoted_path(js_path)}')
        if run_res.exit_code != 0 {
            panic(run_res.output)
        }
    }
}