package main

import (
	"os"
	"testing"
)

// TestMain tests the main function execution
func TestMain_Execution(t *testing.T) {
	// Save original args
	originalArgs := os.Args
	defer func() {
		os.Args = originalArgs
	}()

	// Test with help flag to avoid blocking UI
	os.Args = []string{"kafui", "--help"}

	// Capture if main() panics
	defer func() {
		if r := recover(); r != nil {
			// Expected behavior when --help is used with cobra
			// The program exits with help text, which is normal
		}
	}()

	// This will call main() which calls cmd.DoExecute()
	// With --help flag, it should display help and exit gracefully
	main()
}

// TestMain_WithMockFlag tests main with mock flag
func TestMain_WithMockFlag(t *testing.T) {
	// Save original args
	originalArgs := os.Args
	defer func() {
		os.Args = originalArgs
	}()

	// Test with mock flag and help to avoid blocking UI
	os.Args = []string{"kafui", "--mock", "--help"}

	// Capture if main() panics
	defer func() {
		if r := recover(); r != nil {
			// Expected behavior when --help is used
		}
	}()

	main()
}

// TestMain_WithConfigFlag tests main with config flag
func TestMain_WithConfigFlag(t *testing.T) {
	// Save original args
	originalArgs := os.Args
	defer func() {
		os.Args = originalArgs
	}()

	// Test with config flag and help
	os.Args = []string{"kafui", "--config", "test-config.yaml", "--help"}

	// Capture if main() panics
	defer func() {
		if r := recover(); r != nil {
			// Expected behavior when --help is used
		}
	}()

	main()
}

// TestMain_NoArgs tests main with no arguments
func TestMain_NoArgs(t *testing.T) {
	// This test verifies that main() can be called without panicking
	// We can't easily test the full execution without mocking the UI
	// but we can verify the function exists and is callable
	
	// Save original args
	originalArgs := os.Args
	defer func() {
		os.Args = originalArgs
	}()

	// Set args to just program name and help to avoid UI blocking
	os.Args = []string{"kafui", "--help"}

	// Test that main doesn't panic during setup
	defer func() {
		if r := recover(); r != nil {
			// Help flag causes expected exit, not a panic
		}
	}()

	main()
}

// TestMain_InvalidFlag tests main with invalid flag
func TestMain_InvalidFlag(t *testing.T) {
	// Save original args
	originalArgs := os.Args
	defer func() {
		os.Args = originalArgs
	}()

	// Test with invalid flag
	os.Args = []string{"kafui", "--invalid-flag"}

	// Capture if main() panics
	defer func() {
		if r := recover(); r != nil {
			// Expected behavior for invalid flags
		}
	}()

	main()
}