package xtfs

import (
	"embed"
	"io"
	"os"
	"strings"
	"testing"
)

var (
	//go:embed _test/embed
	embedded embed.FS
	xtfs     *XTFS
)

func TestMain(m *testing.M) {
	var err error
	xtfs, err = New("_test/disk", embedded, WithSub("_test/embed"), WithCaching(false))
	if err != nil {
		panic(err)
	}
	os.Exit(m.Run())
}

func TestEmbed(t *testing.T) {
	fi, err := xtfs.Open("test1.txt")
	if err != nil {
		t.Log(err)
		t.FailNow()
	}
	defer fi.Close()

	test1, err := io.ReadAll(fi)
	if err != nil {
		t.Log(err)
		t.FailNow()
	}

	if !strings.EqualFold(string(test1), "test1") {
		t.Log("embed did not match")
		t.FailNow()
	}
}

func TestDisk(t *testing.T) {
	fi, err := xtfs.Open("test2.txt")
	if err != nil {
		t.Log(err)
		t.FailNow()
	}
	defer fi.Close()

	test2, err := io.ReadAll(fi)
	if err != nil {
		t.Log(err)
		t.FailNow()
	}

	if !strings.EqualFold(string(test2), "test3") {
		t.Log("embed did not match")
		t.FailNow()
	}
}

func BenchmarkCache(b *testing.B) {
	x, err := New("_test/disk", embedded)
	if err != nil {
		b.Log(err)
		b.FailNow()
	}

	for idx := 0; idx < b.N; idx++ {
		x.exists("test2.txt")
	}
}

func BenchmarkNoCache(b *testing.B) {
	x, err := New("_test/disk", embedded, WithCaching(false))
	if err != nil {
		b.Log(err)
		b.FailNow()
	}

	for idx := 0; idx < b.N; idx++ {
		x.exists("test2.txt")
	}
}