namespace Zinnia.Data.Type
{
    using UnityEditor;
    using UnityEngine;
    using Zinnia.Utility;

    /// <summary>
    /// Displays a custom inspector for a range between two floats.
    /// </summary>
    [CustomPropertyDrawer(typeof(FloatRange))]
    public class Limits2DDrawer : PropertyDrawer
    {
        /// <inheritdoc/>
        public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
        {
            label.tooltip = EditorHelper.GetTooltipAttribute(fieldInfo)?.tooltip ?? string.Empty;
            SerializedProperty minimum = property.FindPropertyRelative("minimum");
            SerializedProperty maximum = property.FindPropertyRelative("maximum");

            position = EditorGUI.PrefixLabel(position, GUIUtility.GetControlID(FocusType.Passive), label);
            int indent = EditorGUI.indentLevel;
            EditorGUI.indentLevel = 0;
            float updatePositionX = position.x;
            const float labelWidth = 30f;
            float fieldWidth = (position.width / 3f) - labelWidth;

            using (new EditorGUI.PropertyScope(position, GUIContent.none, minimum))
            {
                EditorGUI.LabelField(new Rect(updatePositionX, position.y, labelWidth, position.height), "Min");
                updatePositionX += labelWidth;
                minimum.floatValue = EditorGUI.FloatField(
                    new Rect(updatePositionX, position.y, fieldWidth, position.height),
                    minimum.floatValue);
                updatePositionX += fieldWidth;
            }

            using (new EditorGUI.PropertyScope(position, GUIContent.none, maximum))
            {
                EditorGUI.LabelField(new Rect(updatePositionX, position.y, labelWidth, position.height), "Max");
                updatePositionX += labelWidth;
                maximum.floatValue = EditorGUI.FloatField(
                    new Rect(updatePositionX, position.y, fieldWidth, position.height),
                    maximum.floatValue);
                updatePositionX += fieldWidth;
            }

            EditorGUI.indentLevel = indent;
        }
    }
}