import os
import time
import rand
import v.vmod
import test_utils { cmd_ok }

const v = os.quoted_path(@VEXE)
const test_path = os.join_path(os.vtmp_dir(), 'vpm_dependency_test_${rand.ulid()}')

fn testsuite_begin() {
    $if !network ? {
        eprintln('> skipping ${@FILE}, when `-d network` is missing')
        exit(0)
    }
    dump(test_path)
    test_utils.set_test_env(test_path)
    os.mkdir_all(test_path) or {}
    os.chdir(test_path)!
}

fn testsuite_end() {
    dump(os.system('find ${test_path}'))
    os.rmdir_all(test_path) or {}
}

fn get_mod_name(path string) string {
    mod := vmod.from_file(path) or {
        eprintln(err)
        return ''
    }
    return mod.name
}

// Case: running `v install` without specifying modules in a V project directory.
fn test_install_dependencies_in_module_dir() {
    mod := 'my_module'
    mod_path := os.join_path(test_path, mod)
    os.mkdir(mod_path)!
    os.chdir(mod_path)!
    // Create a v.mod file that lists dependencies.
    vmod_path := os.join_path(mod_path, 'v.mod')
    vmod_contents := "Module {
    name: '${mod}'
    description: ''
    version: '0.0.0'
    license: 'MIT'
    dependencies: ['markdown', 'pcre', 'https://github.com/spytheman/vtray']
}"
    os.write_file(vmod_path, vmod_contents)!
    v_mod := vmod.from_file(vmod_path) or {
        assert false, err.msg()
        return
    }
    assert v_mod.dependencies == ['markdown', 'pcre', 'https://github.com/spytheman/vtray']
    // Run `v install`
    mut res := cmd_ok(@LOCATION, '${v} install --once')
    assert res.output.contains('Detected v.mod file inside the project directory. Using it...'), res.output
    expect_installing(@LOCATION, res.output, 'markdown')
    expect_installing(@LOCATION, res.output, 'pcre')
    expect_installing(@LOCATION, res.output, 'vtray')

    assert get_mod_name(os.join_path(test_path, 'markdown', 'v.mod')) == 'markdown'
    assert get_mod_name(os.join_path(test_path, 'pcre', 'v.mod')) == 'pcre'
    assert get_mod_name(os.join_path(test_path, 'vtray', 'v.mod')) == 'vtray'
    res = cmd_ok(@LOCATION, '${v} install --once')
    assert res.output.contains('All modules are already installed.'), res.output
}

fn test_resolve_external_dependencies_during_module_install() {
    res := cmd_ok(@LOCATION, '${v} install -v https://github.com/ttytm/emoji-mart-desktop')
    assert res.output.contains('Found 2 dependencies'), res.output
    expect_installing(@LOCATION, res.output, 'webview')
    expect_installing(@LOCATION, res.output, 'miniaudio')
    // The external dependencies should have been installed to `<vmodules_dir>/<dependency_name>`
    assert get_mod_name(os.join_path(test_path, 'webview', 'v.mod')) == 'webview'
    assert get_mod_name(os.join_path(test_path, 'miniaudio', 'v.mod')) == 'miniaudio'
}

fn test_install_with_recursive_dependencies() {
    spawn fn () {
        time.sleep(2 * time.minute)
        eprintln('Timeout while testing installation with recursive dependencies.')
        exit(1)
    }()
    cmd_ok(@LOCATION, '${v} install https://gitlab.com/tobealive/a')

    // Test the installation of a module when passing its URL with the `.git` extension.
    // One of the modules dependencies `https://gitlab.com/tobealive/c` has the
    // `https://gitlab.com/tobealive/a` dependency without `.git`.
    cmd_ok(@LOCATION, '${v} remove a b c')
    cmd_ok(@LOCATION, '${v} install https://gitlab.com/tobealive/a.git')
}

fn expect_installing(location string, output string, what string) {
    eprintln('>>> location: ${location}')
    assert output.contains('Installing `${what}`') || output.contains('Scanning `${what}`'), output
}