package config

import "testing"

func TestDistributorListParsing(t *testing.T) {
	c := &Config{Distributors: "srs-hls,cf,cdn"}
	got := c.DistributorList()
	if len(got) != 3 || got[0] != "srs-hls" {
		t.Fatalf("unexpected distributors %v", got)
	}
	if got[1] != "cf" || got[2] != "cdn" {
		t.Fatalf("unexpected order %v", got)
	}
	if c.CDNEnabled() {
		t.Fatalf("should not be enabled without CDN_RTMP_URL")
	}
	// alias normalization
	c2 := &Config{Distributors: "srs,cloudflare,cdn"}
	got2 := c2.DistributorList()
	if got2[0] != "srs-hls" || got2[1] != "cf" {
		t.Fatalf("alias normalize failed %v", got2)
	}
}

func TestDistributorListDedup(t *testing.T) {
	c := &Config{Distributors: "srs-hls,srs-hls,cf"}
	got := c.DistributorList()
	if len(got) != 2 {
		t.Fatalf("want dedup 2, got %v", got)
	}
}

func TestValidateCDNRequiresURLWhenEnabled(t *testing.T) {
	c := &Config{Distributors: "cdn", CDNRTMPURL: ""}
	if err := c.ValidateDistributors(); err == nil {
		t.Fatal("expected error when cdn enabled without URL")
	}
	c2 := &Config{Distributors: "cdn", CDNRTMPURL: "rtmp://cdn.example.com/live"}
	if err := c2.ValidateDistributors(); err != nil {
		t.Fatalf("unexpected error %v", err)
	}
	c3 := &Config{Distributors: "srs-hls,cf", CDNRTMPURL: ""}
	if err := c3.ValidateDistributors(); err != nil {
		t.Fatalf("should not require CDN URL when cdn not in list, got %v", err)
	}
}

func TestCDNEnabled(t *testing.T) {
	c := &Config{CDNRTMPURL: ""}
	if c.CDNEnabled() {
		t.Fatal("empty should be disabled")
	}
	c2 := &Config{CDNRTMPURL: "rtmp://a/b"}
	if !c2.CDNEnabled() {
		t.Fatal("non-empty should be enabled")
	}
}