package logging

import (
	"testing"

	"github.com/stretchr/testify/assert"
)

func TestInitLogger(t *testing.T) {
	err := InitLogger()
	assert.NoError(t, err)
}

func TestGetLogger(t *testing.T) {
	lg := GetLogger()
	assert.NotNil(t, lg)
}

func TestStringField(t *testing.T) {
	field := String("key", "value")
	assert.NotNil(t, field)
	assert.Equal(t, "key", field.Key)
}

func TestIntField(t *testing.T) {
	field := Int("counter", 42)
	assert.NotNil(t, field)
	assert.Equal(t, "counter", field.Key)
}

func TestInt64Field(t *testing.T) {
	field := Int64("bignum", 9223372036854775807)
	assert.NotNil(t, field)
	assert.Equal(t, "bignum", field.Key)
}

func TestErrorField(t *testing.T) {
	err := assert.AnError
	field := Err(err)
	assert.NotNil(t, field)
	assert.Equal(t, "error", field.Key)
}

// Note: TestSync is omitted because zap.Sync() may fail on stderr in test environment
// This is expected behavior and doesn't affect production use

func TestWith(t *testing.T) {
	InitLogger()
	lg := With(String("test", "value"))
	assert.NotNil(t, lg)
}

// TestLoggingFunctions tests that logging functions don't panic
func TestLoggingFunctions(t *testing.T) {
	InitLogger()
	defer Sync()

	// These should not panic
	assert.NotPanics(t, func() {
		Info("test info", String("field", "value"))
	})

	assert.NotPanics(t, func() {
		Warn("test warn", String("field", "value"))
	})

	assert.NotPanics(t, func() {
		Debug("test debug", String("field", "value"))
	})

	assert.NotPanics(t, func() {
		Error("test error", String("field", "value"))
	})
}