package e2e

import (
	"context"
	"path/filepath"
	"testing"
)

// Curve presets live in the user profile: they survive a round trip through
// the metadata layer and are never visible to another user.
func TestCurvePresetsPersistAndArePrivate(t *testing.T) {
	ctx := context.Background()
	st, closeDB := openStack(t, filepath.Join(t.TempDir(), "galo.db"), t.TempDir())
	defer closeDB()

	owner, _, err := st.auth.Register(ctx, "presets@test.local", "", "password123", "Owner")
	if err != nil {
		t.Fatalf("register owner: %v", err)
	}
	other, _, err := st.auth.Register(ctx, "otherpresets@test.local", "", "password123", "Other")
	if err != nil {
		t.Fatalf("register other: %v", err)
	}

	raw := []byte(`{"curve_presets":[{"name":"Мой контраст","channels":{"rgb":[{"x":0,"y":0},{"x":1,"y":0.9}],"red":[{"x":0,"y":0},{"x":1,"y":1}],"green":[{"x":0,"y":0},{"x":1,"y":1}],"blue":[{"x":0,"y":0},{"x":1,"y":1}]}}]}`)
	if err := st.repos.Auth.UpdatePreferences(ctx, owner.ID, raw); err != nil {
		t.Fatalf("update preferences: %v", err)
	}

	got, err := st.repos.Auth.GetUserByID(ctx, owner.ID)
	if err != nil {
		t.Fatalf("get owner: %v", err)
	}
	presets, ok := got.Preferences["curve_presets"].([]any)
	if !ok || len(presets) != 1 {
		t.Fatalf("presets not stored: %+v", got.Preferences)
	}
	preset, _ := presets[0].(map[string]any)
	if preset["name"] != "Мой контраст" {
		t.Fatalf("preset = %+v", preset)
	}
	channels, _ := preset["channels"].(map[string]any)
	for _, channel := range []string{"rgb", "red", "green", "blue"} {
		if points, ok := channels[channel].([]any); !ok || len(points) != 2 {
			t.Fatalf("channel %s = %#v", channel, channels[channel])
		}
	}

	otherUser, err := st.repos.Auth.GetUserByID(ctx, other.ID)
	if err != nil {
		t.Fatalf("get other: %v", err)
	}
	if _, ok := otherUser.Preferences["curve_presets"]; ok {
		t.Fatalf("other user sees presets: %+v", otherUser.Preferences)
	}
}