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using Obfuz.Utils;
using System;
using System.Collections.Generic;
using System.Linq;
using UnityEngine;

namespace Obfuz.Settings
{
    public class ParamPadSettingsFacade
    {
        public int randomSeed;
        public int minCount;
        public int maxCount;
        public List<string> ruleFiles;
        public List<Type> customRenamePolicyTypes;
    }

    [Serializable]
    public class ParamPadSettings
    {
        [Tooltip("random seed for the junk parameters. 0 draws a fresh seed on every build, so every build has a different signature table")]
        public int randomSeed = 0;

        [Tooltip("minimum number of junk parameters added to an eligible method")]
        [Range(1, 20)]
        public int minCount = 5;

        [Tooltip("maximum number of junk parameters added to an eligible method. Every call to a padded method writes this many extra argument slots, so lower it if a build shows a measurable cost")]
        [Range(1, 20)]
        public int maxCount = 10;

        [Tooltip("a method is only padded if it is also safe to rename, so these are the symbol obfuscation rule files")]
        public string[] ruleFiles;

        [Tooltip("custom rename policy types, same contract as SymbolObfuscationSettings.customRenamePolicyTypes")]
        public string[] customRenamePolicyTypes;

        public ParamPadSettingsFacade ToFacade()
        {
            return new ParamPadSettingsFacade
            {
                randomSeed = randomSeed,
                // an asset serialized before this section existed deserializes as zeros, which
                // the transform rejects; clamp rather than fail the build
                minCount = Math.Max(1, minCount),
                maxCount = Math.Max(Math.Max(1, minCount), maxCount),
                ruleFiles = ruleFiles?.ToList() ?? new List<string>(),
                customRenamePolicyTypes = customRenamePolicyTypes?.Select(typeName => ReflectionUtil.FindUniqueTypeInCurrentAppDomain(typeName)).ToList() ?? new List<Type>(),
            };
        }
    }
}