package declaration

import (
	"strings"
	"testing"
)

// Defends novox/hq ADR 0102: a file written into carries only a JSON object of its keys, in a
// format the host speaks, and a service may name what it is reloaded on.

func TestAFileWrittenIntoIsRefusedUnlessItIsAnObjectOfKeys(t *testing.T) {
	for name, c := range map[string]struct{ resource, refusal string }{
		"another format":   {`{"id":"f","type":"file","path":"/etc/x","into":"toml","content":"a = 1"}`, `into "toml"`},
		"not an object":    {`{"id":"f","type":"file","path":"/etc/x","into":"json","content":"[1,2]"}`, "JSON object"},
		"with create-once": {`{"id":"f","type":"file","path":"/etc/x","into":"json","content":"{}","create-once":true}`, "create-once"},
	} {
		_, err := Parse([]byte(`{"declaration":1,"resources":[` + c.resource + `]}`))
		if err == nil || !strings.Contains(err.Error(), c.refusal) {
			t.Errorf("%s: want a refusal naming %q, got %v", name, c.refusal, err)
		}
	}
	d, err := Parse([]byte(`{"declaration":1,"resources":[
	  {"id":"f","type":"file","path":"/etc/x","into":"json","content":"{\"k\":1}"},
	  {"id":"s","type":"service","unit":"docker.service","state":"running","reload-on":["f"]}
	]}`))
	if err != nil {
		t.Fatal(err)
	}
	if f := d.Resources[0].(*File); f.Into != IntoJSON {
		t.Errorf("into was read as %q", f.Into)
	}
	if s := d.Resources[1].(*Service); len(s.ReloadOn) != 1 || s.ReloadOn[0] != "f" {
		t.Errorf("reload-on was read as %v", s.ReloadOn)
	}
}