package platform

import (
	"encoding/json"
	"math"
	"testing"
)

func TestMemberDropPositions(t *testing.T) {
	raw := memberFixture(t)
	source := "11111111-1111-4111-8111-111111111111"
	target := "22222222-2222-4222-8222-222222222222"
	original := string(raw[source])
	positions := map[string]memberDropPosition{"a": {X: 40, Y: 50}}
	positioned, err := positionMemberDrop(raw[source], positions)
	if err != nil {
		t.Fatal(err)
	}
	raw[source] = positioned
	moved, err := moveMembersDocuments("parent", source, target, []string{"a"}, raw)
	if err != nil {
		t.Fatal(err)
	}
	pos := canvasNodesByID(moved[target])["a"]["position"].(map[string]any)
	if pos["x"] != float64(140) || pos["y"] != float64(250) {
		t.Fatalf("final drop position %v", pos)
	}
	if original == string(positioned) {
		t.Fatal("position not applied")
	}
	if _, err := positionMemberDrop(positioned, map[string]memberDropPosition{"missing": {}}); err == nil {
		t.Fatal("missing member accepted")
	}
	if !validMemberDropPositions([]string{"a"}, nil) || !validMemberDropPositions([]string{"a"}, positions) {
		t.Fatal("valid positions rejected")
	}
	for _, bad := range []map[string]memberDropPosition{{}, {"other": {}}, {"a": {X: 1e6 + 1}}, {"a": {Y: math.NaN()}}, {"a": {X: math.Inf(1)}}} {
		if validMemberDropPositions([]string{"a"}, bad) {
			t.Fatalf("bad positions accepted %v", bad)
		}
	}
	for _, bad := range []string{`{"x":1}`, `{"x":null,"y":1}`, `{"x":1,"y":2,"z":3}`} {
		var p memberDropPosition
		if json.Unmarshal([]byte(bad), &p) == nil {
			t.Fatal("malformed position accepted")
		}
	}
}