package main_test

import (
	"fmt"
	"io/ioutil"
	"os"
	"path/filepath"
	"reflect"
	"runtime"
	"strings"
	"testing"

	"github.com/boltdb/bolt"
	. "github.com/boltdb/bolt/cmd/bolt"
)

// open creates and opens a Bolt database in the temp directory.
func open(fn func(*bolt.DB, string)) {
	path := tempfile()
	defer os.RemoveAll(path)

	db, err := bolt.Open(path, 0600, nil)
	if err != nil {
		panic("db open error: " + err.Error())
	}
	fn(db, path)
}

// run executes a command against the CLI and returns the output.
func run(args ...string) string {
	args = append([]string{"bolt"}, args...)
	NewApp().Run(args)
	return strings.TrimSpace(LogBuffer())
}

// tempfile returns a temporary file path.
func tempfile() string {
	f, _ := ioutil.TempFile("", "bolt-")
	f.Close()
	os.Remove(f.Name())
	return f.Name()
}

// assert fails the test if the condition is false.
func assert(tb testing.TB, condition bool, msg string, v ...interface{}) {
	if !condition {
		_, file, line, _ := runtime.Caller(1)
		fmt.Printf("\033[31m%s:%d: "+msg+"\033[39m\n\n", append([]interface{}{filepath.Base(file), line}, v...)...)
		tb.FailNow()
	}
}

// ok fails the test if an err is not nil.
func ok(tb testing.TB, err error) {
	if err != nil {
		_, file, line, _ := runtime.Caller(1)
		fmt.Printf("\033[31m%s:%d: unexpected error: %s\033[39m\n\n", filepath.Base(file), line, err.Error())
		tb.FailNow()
	}
}

// equals fails the test if exp is not equal to act.
func equals(tb testing.TB, exp, act interface{}) {
	if !reflect.DeepEqual(exp, act) {
		_, file, line, _ := runtime.Caller(1)
		fmt.Printf("\033[31m%s:%d:\n\n\texp: %#v\n\n\tgot: %#v\033[39m\n\n", filepath.Base(file), line, exp, act)
		tb.FailNow()
	}
}