429 lines
18 KiB
Kotlin
429 lines
18 KiB
Kotlin
package cy.agorise.bitsybitshareswallet.fragments
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import android.Manifest
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import android.content.Intent
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import android.content.pm.PackageManager
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import android.graphics.Bitmap
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import android.graphics.Color
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import android.os.Bundle
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import android.preference.PreferenceManager
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import android.util.Log
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import android.view.*
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import android.widget.AdapterView
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import androidx.appcompat.widget.Toolbar
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import androidx.collection.LongSparseArray
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import androidx.core.content.ContextCompat
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import androidx.lifecycle.Observer
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import androidx.lifecycle.ViewModelProviders
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import com.crashlytics.android.Crashlytics
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import com.google.common.primitives.UnsignedLong
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import com.google.zxing.BarcodeFormat
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import com.google.zxing.EncodeHintType
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import com.google.zxing.MultiFormatWriter
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import com.google.zxing.WriterException
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import com.google.zxing.common.BitMatrix
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import com.jakewharton.rxbinding3.widget.textChanges
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import cy.agorise.bitsybitshareswallet.R
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import cy.agorise.bitsybitshareswallet.adapters.AssetsAdapter
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import cy.agorise.bitsybitshareswallet.adapters.AutoSuggestAssetAdapter
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import cy.agorise.bitsybitshareswallet.utils.Constants
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import cy.agorise.bitsybitshareswallet.utils.Helper
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import cy.agorise.bitsybitshareswallet.utils.toast
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import cy.agorise.bitsybitshareswallet.viewmodels.AssetViewModel
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import cy.agorise.bitsybitshareswallet.viewmodels.UserAccountViewModel
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import cy.agorise.graphenej.*
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import cy.agorise.graphenej.api.ConnectionStatusUpdate
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import cy.agorise.graphenej.api.calls.ListAssets
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import cy.agorise.graphenej.models.JsonRpcResponse
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import io.reactivex.android.schedulers.AndroidSchedulers
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import kotlinx.android.synthetic.main.fragment_receive_transaction.*
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import java.lang.Exception
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import java.math.RoundingMode
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import java.text.DecimalFormat
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import java.text.DecimalFormatSymbols
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import java.util.*
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import java.util.concurrent.TimeUnit
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import kotlin.collections.ArrayList
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class ReceiveTransactionFragment : ConnectedFragment() {
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companion object {
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private const val TAG = "ReceiveTransactionFrag"
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private const val RESPONSE_LIST_ASSETS = 1
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private const val REQUEST_WRITE_EXTERNAL_STORAGE_PERMISSION = 100
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/** Number of assets to request from the NetworkService to show as suggestions in the AutoCompleteTextView */
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private const val AUTO_SUGGEST_ASSET_LIMIT = 5
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private const val OTHER_ASSET = "other_asset"
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}
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private lateinit var mUserAccountViewModel: UserAccountViewModel
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private lateinit var mAssetViewModel: AssetViewModel
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/** Current user account */
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private var mUserAccount: UserAccount? = null
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private var mAsset: Asset? = null
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private var mAssetsAdapter: AssetsAdapter? = null
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private lateinit var mAutoSuggestAssetAdapter: AutoSuggestAssetAdapter
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private var mAssets = ArrayList<cy.agorise.bitsybitshareswallet.database.entities.Asset>()
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/** Keeps track of the current selected asset symbol */
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private var selectedAssetSymbol = "BTS"
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/** Used to avoid erasing the QR code when the user selects an item from the AutoComplete suggestions */
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private var selectedInAutoCompleteTextView = false
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// Map used to keep track of request and response id pairs
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private val responseMap = LongSparseArray<Int>()
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override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
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setHasOptionsMenu(true)
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val nightMode = PreferenceManager.getDefaultSharedPreferences(context)
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.getBoolean(Constants.KEY_NIGHT_MODE_ACTIVATED, false)
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// Sets the toolbar background color to green
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val toolbar: Toolbar? = activity?.findViewById(R.id.toolbar)
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toolbar?.setBackgroundResource(if (!nightMode) R.color.colorReceive else R.color.colorToolbarDark)
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// Sets the status and navigation bars background color to a dark green or just dark
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val window = activity?.window
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context?.let { context ->
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val statusBarColor = ContextCompat.getColor(context,
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if (!nightMode) R.color.colorReceiveDark else R.color.colorStatusBarDark)
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window?.statusBarColor = statusBarColor
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window?.navigationBarColor = statusBarColor
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}
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return inflater.inflate(R.layout.fragment_receive_transaction, container, false)
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}
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override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
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super.onViewCreated(view, savedInstanceState)
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Crashlytics.setString(Constants.CRASHLYTICS_KEY_LAST_SCREEN, TAG)
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// Configure UserAccountViewModel to show the current account
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mUserAccountViewModel = ViewModelProviders.of(this).get(UserAccountViewModel::class.java)
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val userId = PreferenceManager.getDefaultSharedPreferences(context)
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.getString(Constants.KEY_CURRENT_ACCOUNT_ID, "")
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mUserAccountViewModel.getUserAccount(userId!!).observe(this,
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Observer<cy.agorise.bitsybitshareswallet.database.entities.UserAccount>{ user ->
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mUserAccount = UserAccount(user.id, user.name)
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})
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// Configure Assets spinner to show Assets already saved into the db
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mAssetViewModel = ViewModelProviders.of(this).get(AssetViewModel::class.java)
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mAssetViewModel.getAllNonZero().observe(this,
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Observer<List<cy.agorise.bitsybitshareswallet.database.entities.Asset>> { assets ->
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mAssets.clear()
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mAssets.addAll(assets)
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mAssets.sortWith(
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Comparator { a, b -> a.toString().compareTo(b.toString(), true) }
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)
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// Add an option at the end so the user can search for an asset other than the ones saved in the db
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val asset = cy.agorise.bitsybitshareswallet.database.entities.Asset(
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OTHER_ASSET, getString(R.string.text__other), 0, "", ""
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)
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mAssets.add(asset)
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mAssetsAdapter = AssetsAdapter(context!!, android.R.layout.simple_spinner_item, mAssets)
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spAsset.adapter = mAssetsAdapter
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// Try to select the selectedAssetSymbol
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for (i in 0 until mAssetsAdapter!!.count) {
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if (mAssetsAdapter!!.getItem(i)!!.symbol == selectedAssetSymbol) {
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spAsset.setSelection(i)
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break
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}
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}
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})
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spAsset.onItemSelectedListener = object : AdapterView.OnItemSelectedListener{
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override fun onNothingSelected(parent: AdapterView<*>?) { }
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override fun onItemSelected(parent: AdapterView<*>?, view: View?, position: Int, id: Long) {
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mAssetsAdapter?.getItem(position)?.let { asset ->
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if (asset.id == OTHER_ASSET) {
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tilAsset.visibility = View.VISIBLE
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mAsset = null
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} else {
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tilAsset.visibility = View.GONE
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selectedAssetSymbol = asset.symbol
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mAsset = Asset(asset.id, asset.toString(), asset.precision)
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}
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}
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updateQR()
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}
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}
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// Use RxJava Debounce to create QR code only after the user stopped typing an amount
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mDisposables.add(
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tietAmount.textChanges()
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.debounce(1000, TimeUnit.MILLISECONDS)
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.observeOn(AndroidSchedulers.mainThread())
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.subscribe( { updateQR() }, { mAsset = null} )
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)
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// Add adapter to the Assets AutoCompleteTextView
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mAutoSuggestAssetAdapter = AutoSuggestAssetAdapter(context!!, android.R.layout.simple_dropdown_item_1line)
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actvAsset.setAdapter(mAutoSuggestAssetAdapter)
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// Use RxJava Debounce to avoid making calls to the NetworkService on every text change event and also avoid
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// the first call when the View is created
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mDisposables.add(
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actvAsset.textChanges()
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.skipInitialValue()
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.debounce(500, TimeUnit.MILLISECONDS)
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.map { it.toString().trim().toUpperCase() }
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.observeOn(AndroidSchedulers.mainThread())
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.subscribe( {
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if (!selectedInAutoCompleteTextView) {
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mAsset = null
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updateQR()
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}
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selectedInAutoCompleteTextView = false
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// Get a list of assets that match the already typed string by the user
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if (it.length > 1 && mNetworkService != null) {
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val id = mNetworkService?.sendMessage(ListAssets(it, AUTO_SUGGEST_ASSET_LIMIT),
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ListAssets.REQUIRED_API)
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if (id != null) responseMap.append(id, RESPONSE_LIST_ASSETS)
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}
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}, { mAsset = null } )
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)
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actvAsset.setOnItemClickListener { parent, _, position, _ ->
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val asset = parent.adapter.getItem(position) as cy.agorise.bitsybitshareswallet.database.entities.Asset
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mAsset = Asset(asset.id, asset.toString(), asset.precision)
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selectedInAutoCompleteTextView = true
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updateQR()
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}
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}
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override fun handleJsonRpcResponse(response: JsonRpcResponse<*>) {
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if (responseMap.containsKey(response.id)) {
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val responseType = responseMap[response.id]
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when (responseType) {
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RESPONSE_LIST_ASSETS -> handleListAssets(response.result)
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}
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responseMap.remove(response.id)
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}
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}
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override fun handleConnectionStatusUpdate(connectionStatusUpdate: ConnectionStatusUpdate) {
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if (connectionStatusUpdate.updateCode == ConnectionStatusUpdate.DISCONNECTED) {
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// If we got a disconnection notification, we should clear our response map, since
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// all its stored request ids will now be reset
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responseMap.clear()
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}
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}
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/**
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* Handles the list of assets returned from the node that correspond to what the user has typed in the Asset
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* AutoCompleteTextView and adds them to its adapter to show as suggestions.
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*/
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private fun handleListAssets(result: Any?) {
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if (result is List<*> && result.isNotEmpty() && result[0] is Asset) {
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val assetList = result as List<Asset>
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Log.d(TAG, "handleListAssets")
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val assets = ArrayList<cy.agorise.bitsybitshareswallet.database.entities.Asset>()
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for (_asset in assetList) {
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val asset = cy.agorise.bitsybitshareswallet.database.entities.Asset(
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_asset.objectId,
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_asset.symbol,
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_asset.precision,
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_asset.description ?: "",
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_asset.issuer ?: ""
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)
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assets.add(asset)
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}
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mAutoSuggestAssetAdapter.setData(assets)
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mAutoSuggestAssetAdapter.notifyDataSetChanged()
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}
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}
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private fun updateQR() {
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if (mAsset == null) {
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ivQR.setImageDrawable(null)
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// TODO clean the please pay and to text at the bottom too
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return
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}
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val asset = mAsset!!
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// Try to obtain the amount from the Amount Text Field or make it zero otherwise
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val amount: Long = try {
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val tmpAmount = tietAmount.text.toString().toDouble()
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(tmpAmount * Math.pow(10.0, asset.precision.toDouble())).toLong()
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}catch (e: Exception) {
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0
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}
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val total = AssetAmount(UnsignedLong.valueOf(amount), asset)
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val totalInDouble = Util.fromBase(total)
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val items = arrayOf(LineItem("transfer", 1, totalInDouble))
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val invoice = Invoice(mUserAccount?.name, "", "",
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asset.symbol.replaceFirst("bit", ""), items, "", "")
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Log.d(TAG, "invoice: " + invoice.toJsonString())
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try {
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val bitmap = encodeAsBitmap(Invoice.toQrCode(invoice), "#139657") // PalmPay green
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ivQR.setImageBitmap(bitmap)
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updateAmountAddressUI(amount, asset.symbol, asset.precision, mUserAccount!!.name)
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} catch (e: WriterException) {
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Log.e(TAG, "WriterException. Msg: " + e.message)
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Crashlytics.logException(e)
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} catch (e: NullPointerException) {
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Log.e(TAG, "NullPointerException. Msg: " + e.message)
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Crashlytics.logException(e)
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}
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}
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/**
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* Encodes the provided data as a QR-code. Used to provide payment requests.
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* @param data: Data containing payment request data as the recipient's address and the requested amount.
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* @param color: The color used for the QR-code
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* @return Bitmap with the QR-code encoded data
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* @throws WriterException if QR Code cannot be generated
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*/
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@Throws(WriterException::class)
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internal fun encodeAsBitmap(data: String, color: String): Bitmap? {
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val result: BitMatrix
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// Get measured width and height of the ImageView where the QR code will be placed and make sure
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// the final QR code has a squared shape
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val w = Math.min(ivQR.width, ivQR.height)
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val h = w
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try {
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val hints = HashMap<EncodeHintType, Any>()
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hints[EncodeHintType.MARGIN] = 0
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result = MultiFormatWriter().encode(
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data,
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BarcodeFormat.QR_CODE, w, h, hints
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)
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} catch (iae: IllegalArgumentException) {
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// Unsupported format
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return null
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}
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val pixels = IntArray(w * h)
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for (y in 0 until h) {
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val offset = y * w
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for (x in 0 until w) {
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pixels[offset + x] = if (result.get(x, y)) Color.parseColor(color) else Color.WHITE
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}
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}
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return try {
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val bitmap = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888)
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bitmap.setPixels(pixels, 0, w, 0, 0, w, h)
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bitmap
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} catch (e: IllegalArgumentException) {
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Crashlytics.logException(e)
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null
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}
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}
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/**
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* Updates the UI to show the amount and account to send the payment
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*/
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private fun updateAmountAddressUI(assetAmount: Long, assetSymbol: String, assetPrecision: Int, account: String) {
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val txtAmount: String = if (assetAmount == 0L) {
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getString(R.string.template__please_send, getString(R.string.text__any_amount), " ")
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} else {
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val df = DecimalFormat("####."+("#".repeat(assetPrecision)))
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df.roundingMode = RoundingMode.CEILING
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df.decimalFormatSymbols = DecimalFormatSymbols(Locale.getDefault())
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val amount = assetAmount.toDouble() / Math.pow(10.toDouble(), assetPrecision.toDouble())
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val strAmount = df.format(amount)
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getString(R.string.template__please_send, strAmount, assetSymbol)
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}
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val txtAccount = getString(R.string.template__to, account)
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tvPleasePay.text = txtAmount
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tvTo.text = txtAccount
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}
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override fun onCreateOptionsMenu(menu: Menu, inflater: MenuInflater) {
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inflater.inflate(R.menu.menu_receive_transaction, menu)
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}
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override fun onOptionsItemSelected(item: MenuItem): Boolean {
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if (item.itemId == R.id.menu_share) {
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verifyStoragePermission()
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return true
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}
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return super.onOptionsItemSelected(item)
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}
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private fun verifyStoragePermission() {
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if (ContextCompat.checkSelfPermission(activity!!, Manifest.permission.WRITE_EXTERNAL_STORAGE)
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!= PackageManager.PERMISSION_GRANTED) {
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// Permission is not already granted
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requestPermissions(arrayOf(android.Manifest.permission.WRITE_EXTERNAL_STORAGE),
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REQUEST_WRITE_EXTERNAL_STORAGE_PERMISSION)
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} else {
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// Permission is already granted
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shareQRScreenshot()
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}
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}
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override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {
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super.onRequestPermissionsResult(requestCode, permissions, grantResults)
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if (requestCode == REQUEST_WRITE_EXTERNAL_STORAGE_PERMISSION) {
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if ((grantResults.isNotEmpty() && grantResults[0] == PackageManager.PERMISSION_GRANTED)) {
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shareQRScreenshot()
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} else {
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context?.toast(getString(R.string.msg__storage_permission_necessary_share))
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}
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return
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}
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}
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/**
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* This function takes a screenshot as a bitmap, saves it into a temporal cache image and then
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* sends an intent so the user can select the desired method to share the image.
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*/
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private fun shareQRScreenshot() {
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// TODO improve, show errors where necessary so the user can fix it
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// Avoid sharing the QR code image if the fields are not filled correctly
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if (mAsset == null)
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return
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// Get Screenshot
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val screenshot = Helper.loadBitmapFromView(container)
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val imageUri = Helper.saveTemporalBitmap(context!!, screenshot)
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// Prepare information for share intent
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val subject = getString(R.string.msg__invoice_subject, mUserAccount?.name)
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val content = tvPleasePay.text.toString() + "\n" +
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tvTo.text.toString()
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// Create share intent and call it
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val shareIntent = Intent()
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shareIntent.action = Intent.ACTION_SEND
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shareIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION) // temp permission for receiving app to read this file
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shareIntent.putExtra(Intent.EXTRA_STREAM, imageUri)
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shareIntent.putExtra(Intent.EXTRA_SUBJECT, subject)
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shareIntent.putExtra(Intent.EXTRA_TEXT, content)
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shareIntent.type = "*/*"
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startActivity(Intent.createChooser(shareIntent, getString(R.string.text__share_with)))
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}
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} |