package com.sw.dualscreen.utils

import android.content.Context
import android.graphics.Bitmap
import android.graphics.BitmapFactory
import java.io.BufferedReader
import java.io.IOException
import java.io.InputStreamReader


object AssetsTool {

//    fun readJson(context: Context, fileName: String): List<String> {
//        val json = readAssetsFile(context, fileName)
//        val json2 = json.replace("[[", "[").replaceAfterLast("]]", "]")
//        val list = json2.split("],")
//        val resultList = mutableListOf<String>()
//        var count = 0
//        val tempList = mutableListOf<String>()
//        list.forEachIndexed { index, text ->
//            if (count >= 500) {
//                val tempJson = "[${tempList.joinToString (",")}]"
//                resultList.add(tempJson)
//                tempList.clear()
//                count = 0
//            }
//            val newText = if (index == list.size - 1) text else "${text}]"
//            tempList.add(newText)
//            count++
//        }
//        if (count < 500) {
//            val tempJson = "[${tempList.joinToString(",")}]"
//            resultList.add(tempJson)
//        }
//        return resultList
//    }

    fun readAssetsFile(context: Context, fileName: String): String {
        val stringBuilder = StringBuilder()
        try {
            val bf = BufferedReader(InputStreamReader(context.assets.open(fileName)))
            bf.useLines { lines -> lines.forEach { stringBuilder.append(it) } }
        } catch (e: IOException) {
            e.printStackTrace()
        }
        return stringBuilder.toString()
    }

    fun loadImagesFromAssets(context: Context, subPath: String): MutableList<Bitmap> {
        val bitmaps: MutableList<Bitmap> = mutableListOf()
        val assetManager = context.assets

        try {
            val files = assetManager.list(subPath)
            files?.forEach { file ->
                assetManager.open("$subPath/$file").use { `is` ->
                    val bitmap = BitmapFactory.decodeStream(`is`)
                    if (bitmap != null) {
                        bitmaps.add(bitmap)
                    }
                }
            }
        } catch (e: IOException) {
            e.printStackTrace()
        }
        return bitmaps
    }

    fun loadImageBitmapFromAssets(context: Context, imagePath:String, action:(bmp: Bitmap)-> Unit) {
        context.assets.open(imagePath).use { `is` ->
            val bitmap = BitmapFactory.decodeStream(`is`)
            action(bitmap)
        }
    }

}