package main

import "testing"

func TestIsEncrypted_EncFile_True(t *testing.T) {
	if !isEncrypted("photo.jpg.enc") {
		t.Error("expected true for .enc file")
	}
}

func TestIsEncrypted_PdfFile_False(t *testing.T) {
	if isEncrypted("doc.pdf") {
		t.Error("expected false for .pdf file")
	}
}

func TestIsEncrypted_DotEncOnly_True(t *testing.T) {
	if !isEncrypted(".enc") {
		t.Error("expected true for '.enc'")
	}
}

func TestEncryptedPath_AppendsDotEnc(t *testing.T) {
	got := encryptedPath("uploads/photo.jpg")
	want := "uploads/photo.jpg.enc"
	if got != want {
		t.Errorf("got %q, want %q", got, want)
	}
}

func TestShouldProcessFile_RegularFile_True(t *testing.T) {
	if !shouldProcessFile(false, "photo.jpg") {
		t.Error("expected true for regular file")
	}
}

func TestShouldProcessFile_Directory_False(t *testing.T) {
	if shouldProcessFile(true, "uploads") {
		t.Error("expected false for directory")
	}
}

func TestShouldProcessFile_AlreadyEncrypted_False(t *testing.T) {
	if shouldProcessFile(false, "photo.jpg.enc") {
		t.Error("expected false for already encrypted file")
	}
}

// --- ClassifyFile ---

func TestClassifyFile_Directory_SkipDir(t *testing.T) {
	if got := ClassifyFile(true, "uploads", false); got != ActionSkipDir {
		t.Errorf("got %d, want ActionSkipDir", got)
	}
}

func TestClassifyFile_EncryptedFile_SkipEncrypted(t *testing.T) {
	if got := ClassifyFile(false, "photo.jpg.enc", false); got != ActionSkipEncrypted {
		t.Errorf("got %d, want ActionSkipEncrypted", got)
	}
}

func TestClassifyFile_DryRun_DryRun(t *testing.T) {
	if got := ClassifyFile(false, "photo.jpg", true); got != ActionDryRun {
		t.Errorf("got %d, want ActionDryRun", got)
	}
}

func TestClassifyFile_Normal_Encrypt(t *testing.T) {
	if got := ClassifyFile(false, "photo.jpg", false); got != ActionEncrypt {
		t.Errorf("got %d, want ActionEncrypt", got)
	}
}

// --- ComputeRelPath ---

func TestComputeRelPath_Valid(t *testing.T) {
	got, err := ComputeRelPath("/uploads", "/uploads/photo.jpg")
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if got != "photo.jpg" {
		t.Errorf("got %q, want %q", got, "photo.jpg")
	}
}

func TestComputeRelPath_NestedPath(t *testing.T) {
	got, err := ComputeRelPath("/uploads", "/uploads/2024/01/photo.jpg")
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	want := "2024/01/photo.jpg"
	if got != want {
		t.Errorf("got %q, want %q", got, want)
	}
}