// Copyright 2019-2020 The Hush developers
package org.myhush.silentdragon

import android.annotation.SuppressLint
import android.app.Activity
import android.os.Bundle
import androidx.appcompat.app.AppCompatActivity
import com.beust.klaxon.Klaxon
import kotlinx.android.synthetic.main.activity_tx_details.*
import kotlinx.android.synthetic.main.content_tx_details.*
import java.io.StringReader
import java.text.DateFormat
import java.text.DecimalFormat
import java.util.*
import android.content.Intent
import android.net.Uri
import androidx.constraintlayout.widget.ConstraintLayout
import android.view.Menu
import android.view.MenuItem
import android.view.View

class TxDetailsActivity : AppCompatActivity() {

    private var tx : DataModel.TransactionItem? = null

    @SuppressLint("SetTextI18n")
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_tx_details)
        setSupportActionBar(toolbar)

        supportActionBar?.setDisplayHomeAsUpEnabled(true)

        title = resources.getString(R.string.transaction_details)

        tx = Klaxon().parse(StringReader(intent.getStringExtra("EXTRA_TXDETAILS")))

        if (tx?.type == "send")
            imgTypeColor.setImageResource(R.color.colorAccent)

        if (tx?.type == "confirm") {

            txtType.text = getString(R.string.confirm_transaction)
            txtDateTime.text = ""
            btnExternal.text = getString(R.string.confirm_and_send)
        } else {
            //txtType.text = tx?.type?.capitalize() + if (tx?.confirmations == 0L) getString(R.string.unconfirmed_tx) else ""
            txtType.text = if (tx?.type == "send") getString(R.string.sent) else getString(R.string.received) + if (tx?.confirmations == 0L) getString(R.string.unconfirmed_tx) else ""
            txtDateTime.text = DateFormat.getDateTimeInstance(DateFormat.MEDIUM, DateFormat.MEDIUM)
                .format(Date((tx?.datetime ?: 0) * 1000))

            // Check if there is a reply-to address
            if (getReplyToAddress(tx?.memo) != null) {
                btnExternal.text = getString(R.string.reply)
            } else {
                btnExternal.visibility = View.GONE
            }
        }

        txtAddress.text = if (tx?.addr.isNullOrBlank()) getString(R.string.shielded_address) else tx?.addr

        val amt = kotlin.math.abs(tx?.amount?.toDoubleOrNull() ?: 0.0)
        val amtStr = DecimalFormat("#0.0000####").format(amt)
        val cur = DataModel.selectedCurrency
        val symbol = DataModel.currencySymbols[cur]

        txtAmtHush.text = " $amtStr  ${DataModel.mainResponseData?.tokenName}"
        txtAmtUSD.text =  "$symbol " + DecimalFormat("#,##0.00").format(
            (amt) * (DataModel.currencyValues[cur] ?: 0.0))

        if (tx?.memo.isNullOrBlank()) {
            layoutMemo.visibility = ConstraintLayout.GONE
        } else {
            txtMemo.text = tx?.memo
        }

        btnExternal.setOnClickListener { v ->
            if (tx?.type == "confirm") {
                val data = Intent()
                data.data = Uri.parse(Klaxon().toJsonString(tx))
                setResult(Activity.RESULT_OK, data)

                finish()
            } else {
                val intent = Intent(this, SendActivity::class.java)
                intent.putExtra("address", getReplyToAddress(tx?.memo))
                intent.putExtra("amount", 0.01)
                intent.putExtra("includeReplyTo", true)
                startActivity(intent)
            }
        }
    }

    private fun getReplyToAddress(memo: String?): String? {
        if (memo == null)
            return null

        val lastPost = memo.trim().lastIndexOfAny("\r\n".toCharArray())
        val lastWord = memo.substring(lastPost + 1)
        return if (DataModel.isValidAddress(lastWord) && DataModel.isSaplingAddress(
                lastWord
            )
        )
            lastWord
        else
            null
    }

    private fun viewOnExplorer(txid: String?) {
        val uri = if (DataModel.isTestnet()) {
            "https://explorer.myhush.org/tx/"
        } else {
            "https://explorer.myhush.org/tx/"
        } + txid
        val browserIntent = Intent(
            Intent.ACTION_VIEW,
            Uri.parse(uri)
        )
        startActivity(browserIntent)
    }

    override fun onCreateOptionsMenu(menu: Menu?): Boolean {
        menuInflater.inflate(R.menu.menu_txdetails, menu)

        tx = Klaxon().parse(StringReader(intent.getStringExtra("EXTRA_TXDETAILS")))
        if (tx?.type == "confirm") {
            menu!!.removeItem(R.id.action_view)
        }
        return true
    }

    override fun onOptionsItemSelected(item: MenuItem?): Boolean {
        return when (item?.itemId) {
            R.id.action_view -> {
                viewOnExplorer(tx?.txid)

                return true
            }
            else -> super.onOptionsItemSelected(item as MenuItem)
        }
    }

    override fun getSupportParentActivityIntent(): Intent? {
        return getParentActivityIntentImpl()
    }

    override fun getParentActivityIntent(): Intent? {
        return getParentActivityIntentImpl()
    }

    private fun getParentActivityIntentImpl(): Intent {
        var i: Intent? = null

        // Here you need to do some logic to determine from which Activity you came.
        // example: you could pass a variable through your Intent extras and check that.
        if (tx?.type == "confirm") {
            i = Intent(this, SendActivity::class.java)
            // set any flags or extras that you need.
            // If you are reusing the previous Activity (i.e. bringing it to the top
            // without re-creating a new instance) set these flags:
            i.flags = Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_ACTIVITY_SINGLE_TOP
        } else {
            i = Intent(this, MainActivity::class.java)
            i.flags = Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_ACTIVITY_SINGLE_TOP
        }

        return i
    }
}