package engine

import (
	"strings"
	"testing"

	"github.com/loyaly/behavision-agent/pkg/paths"
)

// The engine must be told where THIS process keeps state, or a pip-installed
// engine decides on site-packages and the two halves never find each other.
func TestTheEngineIsToldWhereStateLives(t *testing.T) {
	t.Setenv("BEHAVISION_DATA_DIR", t.TempDir())

	env := ChildEnv("http://127.0.0.1:5555/events")

	want := "BEHAVISION_DATA_DIR=" + paths.StateRoot()
	if !contains(env, want) {
		t.Fatalf("engine env lacks %q - a source-installed engine would put its "+
			"database and credential somewhere this process never looks", want)
	}
	if !contains(env, "BEHAVISION_WEBHOOK_URL=http://127.0.0.1:5555/events") {
		t.Fatal("webhook url not passed to the engine")
	}
}

// Before the bridge has a port there is no webhook. An empty variable would be
// read by the engine as a webhook at "", which is not the same as none.
func TestNoWebhookMeansNoVariable(t *testing.T) {
	for _, v := range ChildEnv("") {
		if strings.HasPrefix(v, "BEHAVISION_WEBHOOK_URL=") {
			t.Fatalf("empty hook still exported: %q", v)
		}
	}
}

func contains(env []string, want string) bool {
	for _, v := range env {
		if v == want {
			return true
		}
	}
	return false
}