package manifests

import (
	"os"
	"path/filepath"
	"strings"
	"testing"
)

// Every manifest of the catalogue is one the nodes can use, and the catalogue holds together as one shelf. A row is a
// manifest written into a catalogue of its own: power's bar item as mesh-catalog ca8d6f33 gave it (issue 774) is
// refused naming the attribute, and the same item without it passes.
func TestEveryManifestIsOneTheNodesCanUse(t *testing.T) {
	for _, row := range []struct {
		name, attributes, refused string
	}{
		{name: "the bar places by bar and place", attributes: `"bar":"bottom","place":"status","order":"45"`},
		{name: "an attribute the bar places by none of (ca8d6f33)",
			attributes: `"bar":"bottom","place":"status","order":"45","shows":"state","state":"power.draw"`,
			refused:    `"shows" is none of them`},
	} {
		root := t.TempDir()
		dir := filepath.Join(root, "modules", "bar-user")
		if err := os.MkdirAll(filepath.Join(dir, "files"), 0o755); err != nil {
			t.Fatal(err)
		}
		manifest := `{"module":"bar-user","version":"1","moved":true,` +
			`"build":{"artifacts":[{"name":"files","kind":"archive","from":"files"}]},` +
			`"items":[{"collection":"contribution:node-bar:block","attributes":{` + row.attributes + `},"template":"files/bar"}]}`
		for path, body := range map[string]string{"module.json": manifest, "files/bar": "{\"shows\":\"command\"}\n"} {
			if err := os.WriteFile(filepath.Join(dir, path), []byte(body), 0o644); err != nil {
				t.Fatal(err)
			}
		}
		got, err := Problems(root)
		if err != nil {
			t.Fatal(err)
		}
		joined := strings.Join(got, "\n")
		if (row.refused == "") != (len(got) == 0) || !strings.Contains(joined, row.refused) {
			t.Errorf("%s: refused %q, want %q", row.name, joined, row.refused)
		}
	}
	real, err := Problems(filepath.Join("..", ".."))
	if err != nil {
		t.Fatal(err)
	}
	if len(real) != 0 {
		t.Fatalf("the catalogue holds manifests the nodes cannot use:\n%s", strings.Join(real, "\n"))
	}
}