package config

import (
	"os"
	"testing"
)

func TestReadEnv(t *testing.T) {
	_ = os.Setenv("TEST_VAR_IPTVC", "value123")
	defer os.Unsetenv("TEST_VAR_IPTVC")

	got := readEnv("TEST_VAR_IPTVC", "default")
	if got != "value123" {
		t.Errorf("readEnv = %q, want %q", got, "value123")
	}

	gotDefault := readEnv("TEST_VAR_MISSING", "default")
	if gotDefault != "default" {
		t.Errorf("readEnv default = %q, want %q", gotDefault, "default")
	}
}

func TestReadEnvBoolean(t *testing.T) {
	_ = os.Setenv("TEST_BOOL", "true")
	defer os.Unsetenv("TEST_BOOL")

	if !readEnvBoolean("TEST_BOOL", false) {
		t.Error("readEnvBoolean(true) returned false")
	}

	if readEnvBoolean("TEST_BOOL_MISSING", false) {
		t.Error("readEnvBoolean(missing, false) returned true")
	}
}

func TestReadEnvInteger(t *testing.T) {
	_ = os.Setenv("TEST_INT", "42")
	defer os.Unsetenv("TEST_INT")

	got := readEnvInteger("TEST_INT", 0)
	if got != 42 {
		t.Errorf("readEnvInteger = %d, want 42", got)
	}

	gotDefault := readEnvInteger("TEST_INT_MISSING", 10)
	if gotDefault != 10 {
		t.Errorf("readEnvInteger default = %d, want 10", gotDefault)
	}
}