package inventory

import (
	"testing"

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

// The catalogue's one dependency relation (novox/hq ADR 0162): four kinds of edge from one call.
func TestDependenciesAreOneRelationWithTheirKinds(t *testing.T) {
	entry := func(name, repository string) Entry {
		return Entry{Manifest: catalogue.Manifest{Module: name}, Source: Source{Repository: repository}}
	}
	builder := entry("builder", "http://forge/novox/mesh-catalog.git")
	builder.Manifest.Claims = []catalogue.Claim{{Name: "mesh-build-machine", Scope: catalogue.ScopeMesh}}
	plugin := entry("shop-plugin", "http://forge/novox/mesh-catalog.git")
	plugin.Manifest.Build = &catalogue.Build{On: []catalogue.BuildsOn{{Arg: "BASE", Module: "shop"}}}
	entries := []Entry{
		entry("mesh-tools", "http://forge/novox/mesh-tools.git"),
		entry("shop", "http://forge/novox/mesh-catalog.git"),
		plugin,
		builder,
		entry("mesh-controller", "http://forge/novox/mesh-controller.git"),
		entry("route-proxy", "http://forge/novox/mesh-catalog.git"),
		{Manifest: catalogue.Manifest{Module: "hand-made"}},
	}
	against := map[string][]string{
		"shop":    {catalogue.ArtifactStoreScheme + "mesh-tools/runtime@sha256:a"},
		"builder": {catalogue.ArtifactStoreScheme + "mesh-tools/runtime@sha256:a"},
	}
	read := map[string][]ReadRepository{
		"route-proxy": {{Repository: "http://forge/novox/mesh-controller.git", Ref: "main"}},
	}
	got := dependenciesOf(entries, against, read)
	has := func(from, to, kind string) bool {
		for _, e := range got {
			if e == (Edge{From: from, To: to, Kind: kind}) {
				return true
			}
		}
		return false
	}
	for _, want := range []Edge{
		{"shop", "mesh-tools", EdgeStandsOn},
		{"builder", "mesh-tools", EdgeStandsOn},
		{"shop-plugin", "shop", EdgeDeclared},
		{"route-proxy", "mesh-controller", EdgePackages},
		{"shop", "builder", EdgeBuiltBy},
		{"mesh-controller", "builder", EdgeBuiltBy},
		{"mesh-tools", "builder", EdgeBuiltBy},
	} {
		if !has(want.From, want.To, want.Kind) {
			t.Errorf("missing %+v in %+v", want, got)
		}
	}
	if has("builder", "builder", EdgeBuiltBy) {
		t.Error("the builder is not built by itself")
	}
	for _, e := range got {
		if e.From == "hand-made" {
			t.Errorf("a module with no source depends on nothing: %+v", e)
		}
	}
}