package buildrun

import (
	"reflect"
	"testing"

	"git.novox.be/novox/mesh-delivery/sdk/buildstep"
)

func tc(language, version, digest string) buildstep.Toolchain {
	return buildstep.Toolchain{Language: language, Version: version, Recipe: "1", Digest: digest}
}

func TestToolchainSetKeepsEachNodesEntryByLanguageAndSaysWhenOneChanged(t *testing.T) { // 1607/AC6, design 47 G §604
	var s ToolchainSet
	if !s.Set("novox", tc("go", "go1.27.1", "sha256:a")) {
		t.Error("a first entry did not count as a change")
	}
	if s.Set("novox", tc("go", "go1.27.1", "sha256:a")) {
		t.Error("the same entry again counted as a change")
	}
	if !s.Set("novox", tc("go", "go1.27.1", "sha256:b")) {
		t.Error("a new digest at one version did not count as a change")
	}
	s.Set("ace", tc("go", "go1.27.1", "sha256:b"))
	s.Set("ace", tc("typescript", "tsc5", ""))
	if got := s.Entries("go"); len(got) != 2 {
		t.Errorf("go entries = %+v, want two", got)
	}
	if got := s.Entries("typescript"); len(got) != 1 || got[0].Node != "ace" || got[0].Version != "tsc5" {
		t.Errorf("typescript entries = %+v", got)
	}
	if !s.Delete("ace", "go") || len(s.Entries("go")) != 1 || s.Delete("ace", "go") {
		t.Error("a delete did not remove the node's entry once")
	}
}

// Design 47 G §472, §574: the digests are those the nodes reporting the agreed version report, sorted, with their nodes.
func TestDigestsOfTheAgreedVersion(t *testing.T) {
	entries := []buildstep.NodeToolchain{
		{Node: "novox", Toolchain: tc("go", "1.26.0", "sha256:b")}, {Node: "ace", Toolchain: tc("go", "1.26.0", "sha256:a")},
		{Node: "g14", Toolchain: tc("go", "1.26.0", "sha256:a")}, {Node: "shanks", Toolchain: tc("go", "1.25.0", "sha256:c")},
		{Node: "old", Toolchain: tc("go", "1.26.0", "")}}
	got := Digests(entries, tc("go", "1.26.0", ""))
	want := []AgreedDigest{{Digest: "sha256:a", Nodes: []string{"ace", "g14"}}, {Digest: "sha256:b", Nodes: []string{"novox"}}}
	if !reflect.DeepEqual(got, want) {
		t.Errorf("digests = %+v, want %+v", got, want)
	}
}