package nginxsetup

import (
	"strings"
	"testing"
)

func TestReleaseSelectsOnlySupportedPackageCommands(t *testing.T) {
	for _, tc := range []struct{ raw, manager, install string }{
		{"NAME=Ubuntu\nID=ubuntu\nVERSION_ID=24.04\n", "apt-get", "apt-get install -y nginx certbot"},
		{"NAME=\"TencentOS Server\"\nVERSION=\"4\"\nID=tencentos\nVERSION_ID=\"4\"\n", "dnf", "dnf install -y nginx certbot"},
		{"ID=tencentos\nVERSION_ID=3\n", "", ""},
		{"ID=debian\nVERSION_ID=12\n", "", ""},
	} {
		id, version := ParseOSRelease(tc.raw)
		pm, commands := Plan(id, version)
		if pm != tc.manager {
			t.Errorf("%s: package manager %q", id, pm)
		}
		if tc.install != "" {
			got := strings.Join(commands[len(commands)-1], " ")
			if got != tc.install {
				t.Errorf("%s: install command %q", id, got)
			}
		} else if len(commands) != 0 {
			t.Errorf("%s should be unsupported", id)
		}
	}
}

func TestOnlyOneInitializationAtATime(t *testing.T) {
	if !Begin() {
		t.Fatal("first initialization rejected")
	}
	defer End()
	if Begin() {
		t.Fatal("concurrent initialization accepted")
	}
}