package backup

import (
	"errors"
	"fmt"
	"net/http"
	"testing"
)

func TestCommonRootIsTheFolderHoldingEveryLibraryRoot(t *testing.T) {
	for _, c := range []struct {
		roots []string
		want  string
	}{
		{nil, ""},
		{[]string{"/music"}, "/music"},
		{[]string{"/music/"}, "/music"},
		{[]string{"/data/music/a", "/data/music/b"}, "/data/music"},
		{[]string{"/data/music", "/data/musicals"}, "/data"},
		{[]string{"/music", "/audiobooks"}, "/"},
	} {
		if got := commonRoot(c.roots); got != c.want {
			t.Errorf("commonRoot(%q) = %q, want %q", c.roots, got, c.want)
		}
	}
}

func TestMusicPathIsTheFileUnderTheCommonRoot(t *testing.T) {
	for _, c := range []struct{ root, file, want string }{
		{"/data/music", "/data/music/a/Artist/01 Song.flac", "music/a/Artist/01 Song.flac"},
		{"/", "/music/x.mp3", "music/music/x.mp3"},
		{"/data/music", "/elsewhere/x.mp3", "music/elsewhere/x.mp3"},
		{"", "/music/x.mp3", "music/music/x.mp3"},
	} {
		if got := musicPath(c.root, c.file); got != c.want {
			t.Errorf("musicPath(%q, %q) = %q, want %q", c.root, c.file, got, c.want)
		}
	}
}

func TestObjectRefusedIsOneObjectNotTheWholeBucket(t *testing.T) {
	for _, c := range []struct {
		err  error
		want bool
	}{
		{&Refusal{Status: http.StatusForbidden, Code: "AccessDenied"}, true},
		{&Refusal{Status: http.StatusConflict, Code: "ObjectLocked"}, true},
		{fmt.Errorf("put: %w", &Refusal{Status: http.StatusBadRequest, Code: "InvalidObjectName"}), true},
		{&Refusal{Status: http.StatusForbidden, Code: "SignatureDoesNotMatch"}, false},
		{&Refusal{Status: http.StatusNotFound, Code: "NoSuchBucket"}, false},
		{&Refusal{Status: http.StatusTooManyRequests}, false},
		{&Refusal{Status: http.StatusServiceUnavailable, Code: "SlowDown"}, false},
		{&Refusal{Status: http.StatusInternalServerError}, false},
		{errors.New("connection refused"), false},
	} {
		if got := ObjectRefused(c.err); got != c.want {
			t.Errorf("ObjectRefused(%v %+v) = %v, want %v", c.err, c.err, got, c.want)
		}
	}
}