package main

import (
	"testing"
)

func TestParseAllowedUsers(t *testing.T) {
	tests := []struct {
		input string
		want  map[int64]bool
	}{
		{"", map[int64]bool{}},
		{"12345", map[int64]bool{12345: true}},
		{"12345,67890", map[int64]bool{12345: true, 67890: true}},
		{" 12345 , 67890 ", map[int64]bool{12345: true, 67890: true}},
		{"12345,", map[int64]bool{12345: true}},
		{",12345", map[int64]bool{12345: true}},
		{"invalid", map[int64]bool{}},
	}
	for _, tt := range tests {
		got := parseAllowedUsers(tt.input)
		if len(got) != len(tt.want) {
			t.Errorf("parseAllowedUsers(%q) = %v, want %v", tt.input, got, tt.want)
			continue
		}
		for k, v := range tt.want {
			if got[k] != v {
				t.Errorf("parseAllowedUsers(%q)[%d] = %v, want %v", tt.input, k, got[k], v)
			}
		}
	}
}

func TestGetEnvDefault(t *testing.T) {
	t.Setenv("TEST_EXISTS", "hello")
	if got := getEnvDefault("TEST_EXISTS", "fallback"); got != "hello" {
		t.Errorf("getEnvDefault() = %q, want %q", got, "hello")
	}
	if got := getEnvDefault("TEST_MISSING", "fallback"); got != "fallback" {
		t.Errorf("getEnvDefault() = %q, want %q", got, "fallback")
	}
}

func TestGetEnvIntDefault(t *testing.T) {
	t.Setenv("TEST_INT", "42")
	if got := getEnvIntDefault("TEST_INT", 0); got != 42 {
		t.Errorf("getEnvIntDefault() = %d, want %d", got, 42)
	}
	if got := getEnvIntDefault("TEST_MISSING", 99); got != 99 {
		t.Errorf("getEnvIntDefault() = %d, want %d", got, 99)
	}
	if got := getEnvIntDefault("TEST_INT", 0); got != 42 {
		t.Errorf("getEnvIntDefault() cached = %d, want %d", got, 42)
	}
}