package main

import (
	"testing"

	"github.com/novox/mesh-controller/internal/catalogue"
	"github.com/novox/mesh-controller/internal/inventory"
	"github.com/novox/mesh-controller/internal/link"
)

func entry(module string, on ...string) inventory.Entry {
	b := &catalogue.Build{}
	for _, o := range on {
		b.On = append(b.On, catalogue.BuildsOn{Arg: "X", Module: o, Artifact: "runtime"})
	}
	return inventory.Entry{Manifest: catalogue.Manifest{Module: module, Build: b}}
}

// A module built before the module it stands on is built against the old one and reports success
// (novox/hq 04-ISSUES/131). So bases come first, however the set arrived.
func TestBasesAreBuiltBeforeWhatStandsOnThem(t *testing.T) {
	in := []inventory.Entry{entry("app", "runtime"), entry("runtime", "base"), entry("other"), entry("base")}
	got := orderByBases(in)
	pos := map[string]int{}
	for i, e := range got {
		pos[e.Manifest.Module] = i
	}
	if !(pos["base"] < pos["runtime"] && pos["runtime"] < pos["app"]) {
		t.Fatalf("bases not first: %v", pos)
	}
	if len(got) != 4 {
		t.Fatalf("an entry was lost or doubled: %d", len(got))
	}
	// A base outside the set is not waited for: it is not being rebuilt.
	got = orderByBases([]inventory.Entry{entry("app", "elsewhere")})
	if len(got) != 1 {
		t.Fatalf("a dependency outside the set changed the set: %v", got)
	}
}

// A merge names a repository the way the forge does; a source is recorded the way a build was
// asked for. The two meet on owner/repo and branch, whichever form the record took.
func TestAMergeMatchesTheSourcesBuiltFromIt(t *testing.T) {
	m := link.SourceMoved{Owner: "novox", Repo: "mesh-controller", Base: "main",
		CloneURL: "http://forge.internal:20000/novox/mesh-controller.git"}
	for _, s := range []inventory.Source{
		{Repository: "http://forge.internal:20000/novox/mesh-controller.git", Ref: "main"},
		{Repository: "novox/mesh-controller", Seat: "git", Ref: ""},
		{Repository: "https://elsewhere.example/novox/mesh-controller", Ref: "main"},
	} {
		if !sourceIs(s, m) {
			t.Errorf("%+v was not matched by the merge", s)
		}
	}
	for _, s := range []inventory.Source{
		{Repository: "novox/mesh-host", Seat: "git"},
		{Repository: "http://forge.internal:20000/novox/mesh-controller.git", Ref: "release"},
	} {
		if sourceIs(s, m) {
			t.Errorf("%+v was matched by a merge that is not its", s)
		}
	}
}