package link

import (
	"encoding/json"
	"reflect"
	"strings"
	"testing"
	"time"
)

// The start of a try names no repository and no commit (novox/hq issue 686): the forge's holder writes
// mesh/merge-gate pending on the open pull request whose head a start names, and nothing on the forge moves
// for a try. A pull request's check still names both.
func TestATrysStartNamesNoCommitTheForgeCouldMatch(t *testing.T) {
	sha := strings.Repeat("c0ffee", 7)[:40]
	at := time.Date(2026, 10, 14, 0, 0, 0, 0, time.UTC)
	try := BuildRequest{ID: "build-1", Repository: "https://forge/novox/a.git", Ref: sha,
		Check: &CheckRequest{Owner: "novox", Repo: "a", Try: true}}
	body, _ := json.Marshal(startOf(try, "ace", 1, at))
	if strings.Contains(string(body), sha) || strings.Contains(string(body), "novox/a") {
		t.Fatalf("a try's start names what the forge matches a pull request by: %s", body)
	}
	if s := startOf(try, "ace", 2, at); s.ID != "build-1" || s.On != "ace" || !s.Try || s.Delivery != 2 || s.At == "" {
		t.Fatalf("a try's start lost what the queue reads: %+v", s)
	}
	pull := try
	pull.Check = &CheckRequest{Owner: "novox", Repo: "a", Number: 7}
	if s := startOf(pull, "ace", 1, at); s.Ref != sha || s.Repository == "" || s.Try {
		t.Fatalf("a pull request's check's start: %+v", s)
	}
}

// A try stays behind every delivery and every pull request's check, however long it has waited: the ten
// minutes that put a check ahead of later deliveries never promote a try (novox/hq issue 686).
func TestATryIsNeverHandedOutBeforeADeliveryOrAPullRequestsCheck(t *testing.T) {
	now := time.Date(2026, 10, 12, 12, 0, 0, 0, time.UTC)
	try := func(seq uint64, id string, asked time.Time) QueuedAsk {
		a := anAsk(seq, id, asked, true)
		a.Request.Check.Try = true
		return a
	}
	waiting := []QueuedAsk{
		try(1, "try-old", now.Add(-40*time.Minute)),
		try(2, "try-young", now.Add(-time.Minute)),
		anAsk(3, "check-young", now.Add(-2*time.Minute), true),
		anAsk(4, "delivery", now.Add(-time.Minute), false),
	}
	want := []string{"delivery", "check-young", "try-old", "try-young"}
	if got := idsOf(QueueOrder(waiting, now)); !reflect.DeepEqual(got, want) {
		t.Fatalf("handed out as %v, want %v", got, want)
	}
	if !SafeBuildID("build-20261014T000000-1a2b") || SafeBuildID("x.>") || SafeBuildID("*") || SafeBuildID("") {
		t.Fatal("an id that is a pattern passes for a build's id")
	}
}