package admin

import (
	"net/http"
	"net/http/httptest"
	"net/url"
	"strings"
	"testing"
)

func formRequest(values url.Values) *http.Request {
	req := httptest.NewRequest("POST", "/admin/events", strings.NewReader(values.Encode()))
	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
	return req
}

func baseEventForm() url.Values {
	v := url.Values{}
	v.Set("name", "CascadiaJS")
	v.Set("start_time", "2026-05-31T09:00")
	v.Set("end_time", "2026-05-31T17:00")
	return v
}

func TestParseEventForm_ParsesLinks(t *testing.T) {
	v := baseEventForm()
	v.Set("link_label_0", "Schedule")
	v.Set("link_url_0", "https://example.com/s")
	v.Set("link_label_1", "") // empty label, has URL -> kept (host fallback at render)
	v.Set("link_url_1", "https://example.com/map")
	v.Set("link_label_2", "Ghost") // label only, no URL -> dropped
	v.Set("link_url_2", "")

	in, _, errMsg := parseEventForm(formRequest(v))
	if errMsg != "" {
		t.Fatalf("unexpected error: %s", errMsg)
	}
	if len(in.Links) != 2 {
		t.Fatalf("got %d links, want 2: %+v", len(in.Links), in.Links)
	}
	if in.Links[0].Label != "Schedule" || in.Links[0].URL != "https://example.com/s" {
		t.Errorf("link[0] = %+v", in.Links[0])
	}
	if in.Links[1].URL != "https://example.com/map" {
		t.Errorf("link[1] = %+v", in.Links[1])
	}
}

func TestParseEventForm_RejectsNonHTTPLink(t *testing.T) {
	v := baseEventForm()
	v.Set("link_url_0", "javascript:alert(1)")
	_, _, errMsg := parseEventForm(formRequest(v))
	if errMsg == "" {
		t.Fatal("expected error for non-http link, got none")
	}
}

func TestParseEventForm_NoLinks(t *testing.T) {
	in, _, errMsg := parseEventForm(formRequest(baseEventForm()))
	if errMsg != "" {
		t.Fatalf("unexpected error: %s", errMsg)
	}
	if len(in.Links) != 0 {
		t.Errorf("expected no links, got %+v", in.Links)
	}
}