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
}