using System;
using System.Collections;
using System.Collections.Generic;
using System.Reflection;
using System.Runtime.Serialization;
using System.Text;

namespace TinyJson
{
    // Really simple JSON parser in ~300 lines
    // - Attempts to parse JSON files with minimal GC allocation
    // - Nice and simple "[1,2,3]".FromJson() API
    // - Classes and structs can be parsed too!
    //      class Foo { public int Value; }
    //      "{\"Value\":10}".FromJson()
    // - Can parse JSON without type information into Dictionary and List e.g.
    //      "[1,2,3]".FromJson().GetType() == typeof(List)
    //      "{\"Value\":10}".FromJson().GetType() == typeof(Dictionary)
    // - No JIT Emit support to support AOT compilation on iOS
    // - Attempts are made to NOT throw an exception if the JSON is corrupted or invalid: returns null instead.
    // - Only public fields and property setters on classes/structs will be written to
    //
    // Limitations:
    // - No JIT Emit support to parse structures quickly
    // - Limited to parsing  0 ? splitArrayPool.Pop() : new List();
            splitArray.Clear();
            if (json.Length == 2)
                return splitArray;
            int parseDepth = 0;
            stringBuilder.Length = 0;
            for (int i = 1; i < json.Length - 1; i++)
            {
                switch (json[i])
                {
                    case '[':
                    case '{':
                        parseDepth++;
                        break;
                    case ']':
                    case '}':
                        parseDepth--;
                        break;
                    case '"':
                        i = AppendUntilStringEnd(true, i, json);
                        continue;
                    case ',':
                    case ':':
                        if (parseDepth == 0)
                        {
                            splitArray.Add(stringBuilder.ToString());
                            stringBuilder.Length = 0;
                            continue;
                        }
                        break;
                }

                stringBuilder.Append(json[i]);
            }

            splitArray.Add(stringBuilder.ToString());

            return splitArray;
        }

        internal static object ParseValue(Type type, string json)
        {
            if (type == typeof(string))
            {
                if (json.Length