package discover

import (
	"strings"
	"testing"
)

func TestCandidatesAreExactLabelsOnly(t *testing.T) {
	got := candidates("assets.example.com")
	if len(got) != 2 || got[0] != "assets" || got[1] != "example" {
		t.Fatalf("candidates = %v, want [assets example] (no fabricated names)", got)
	}
	for _, c := range got {
		if !validBucketName(c) {
			t.Fatalf("invalid candidate %q", c)
		}
	}
}

func TestValidAzureAccount(t *testing.T) {
	for _, ok := range []string{"myaccount", "abc123", "a1b2c3d4e5f6g7h8i9j0k1l2"} {
		if !validAzureAccount(ok) {
			t.Fatalf("%q should be a valid Azure account name", ok)
		}
	}
	for _, bad := range []string{"ab", "has-hyphen", "UPPER", "with.dot", "a1b2c3d4e5f6g7h8i9j0k1l2m3"} {
		if validAzureAccount(bad) {
			t.Fatalf("%q should be rejected as an Azure account name", bad)
		}
	}
}

func TestBaseLabelsSkipsNoise(t *testing.T) {
	got := baseLabels("www.example.com")
	if len(got) != 1 || got[0] != "example" {
		t.Fatalf("baseLabels = %v, want [example]", got)
	}
	if baseLabels("example") != nil {
		t.Fatal("single label must yield no base")
	}
}

func TestTargets(t *testing.T) {
	d := New(Config{})
	ts := d.targets("example")
	if len(ts) != 2 {
		t.Fatalf("got %d targets, want 2", len(ts))
	}
	var s3, gcs bool
	for _, tg := range ts {
		switch {
		case strings.Contains(tg.URL, "example.s3.amazonaws.com/?list-type=2"):
			s3 = true
		case strings.Contains(tg.URL, "storage.googleapis.com/example"):
			gcs = true
		}
	}
	if !s3 || !gcs {
		t.Fatalf("missing targets: s3=%v gcs=%v (%v)", s3, gcs, ts)
	}
}