package entities

import (
	"testing"

	"gitea.nik4nao.com/nik/home-services/alexa-bridge/internal/core/domain"
)

func TestResolverResolve(t *testing.T) {
	r := NewResolver()

	t.Run("empty resolver misses", func(t *testing.T) {
		if _, ok := r.Resolve("Living Room Lamp"); ok {
			t.Fatal("Resolve() ok = true on empty resolver, want false")
		}
	})

	r.Replace([]domain.Entity{
		{EntityID: "light.living_room", FriendlyName: "Living Room Lamp", Domain: "light"},
		{EntityID: "switch.fan", FriendlyName: "Fan", Domain: "switch"},
	})

	t.Run("exact match after normalization", func(t *testing.T) {
		e, ok := r.Resolve("  living room lamp  ")
		if !ok {
			t.Fatal("Resolve() ok = false, want true")
		}
		if e.EntityID != "light.living_room" {
			t.Fatalf("EntityID = %q, want %q", e.EntityID, "light.living_room")
		}
	})

	t.Run("case-sensitivity does not matter", func(t *testing.T) {
		if _, ok := r.Resolve("LIVING ROOM LAMP"); !ok {
			t.Fatal("Resolve() ok = false, want true")
		}
	})

	t.Run("no fuzzy match", func(t *testing.T) {
		if _, ok := r.Resolve("living room light"); ok {
			t.Fatal("Resolve() ok = true for a non-exact name, want false (exact-match only, see plan.md Decisions #5)")
		}
	})

	t.Run("unknown name misses", func(t *testing.T) {
		if _, ok := r.Resolve("kitchen"); ok {
			t.Fatal("Resolve() ok = true, want false")
		}
	})

	t.Run("Replace fully overwrites the previous snapshot", func(t *testing.T) {
		r.Replace([]domain.Entity{{EntityID: "light.bedroom", FriendlyName: "Bedroom", Domain: "light"}})
		if _, ok := r.Resolve("fan"); ok {
			t.Fatal("Resolve() found stale entry after Replace, want it gone")
		}
		if _, ok := r.Resolve("bedroom"); !ok {
			t.Fatal("Resolve() ok = false for newly replaced entry, want true")
		}
	})
}