package com.fox2code.mmm

import android.annotation.SuppressLint
import android.content.Intent
import android.os.Build
import android.os.Bundle
import android.view.View
import androidx.core.content.FileProvider
import com.fox2code.foxcompat.app.FoxActivity
import com.fox2code.mmm.androidacy.AndroidacyRepoData
import com.fox2code.mmm.utils.io.net.Http
import com.google.android.material.bottomnavigation.BottomNavigationItemView
import com.google.android.material.bottomnavigation.BottomNavigationView
import com.google.android.material.progressindicator.LinearProgressIndicator
import com.google.android.material.textview.MaterialTextView
import io.noties.markwon.Markwon
import org.json.JSONException
import org.json.JSONObject
import org.matomo.sdk.extra.TrackHelper
import timber.log.Timber
import java.io.File
import java.io.FileOutputStream
import java.io.IOException
import java.util.Objects

class UpdateActivity : FoxActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        if (MainApplication.isMatomoAllowed()) {
            TrackHelper.track().screen(this).with(MainApplication.INSTANCE!!.tracker)
        }
        setContentView(R.layout.activity_update)
        // Get the progress bar and make it indeterminate for now
        val progressIndicator = findViewById<LinearProgressIndicator>(R.id.update_progress)
        progressIndicator.isIndeterminate = true
        // get update_cancel item on bottom navigation
        val bottomNavigationView = findViewById<BottomNavigationView>(R.id.bottom_navigation)
        val updateCancel =
            bottomNavigationView.findViewById<BottomNavigationItemView>(R.id.update_cancel_button)
        // get status text view
        val statusTextView = findViewById<MaterialTextView>(R.id.update_progress_text)
        // set status text to please wait
        statusTextView.setText(R.string.please_wait)
        val updateThread: Thread = object : Thread() {
            override fun run() {
                // Now, parse the intent
                val extras = intent.action
                // if extras is null, then we are in a bad state or user launched the activity manually
                if (extras == null) {
                    runOnUiThread {

                        // set status text to error
                        statusTextView.setText(R.string.error_no_extras)
                        // set progress bar to error
                        progressIndicator.isIndeterminate = false
                        progressIndicator.setProgressCompat(0, false)
                    }
                    return
                }

                // get action
                val action = ACTIONS.valueOf(extras)
                // if action is null, then we are in a bad state or user launched the activity manually
                if (Objects.isNull(action)) {
                    runOnUiThread {

                        // set status text to error
                        statusTextView.setText(R.string.error_no_action)
                        // set progress bar to error
                        progressIndicator.isIndeterminate = false
                        progressIndicator.setProgressCompat(0, false)
                    }
                    // return
                    return
                }

                // For check action, we need to check if there is an update using the AppUpdateManager.peekShouldUpdate()
                when (action) {
                    ACTIONS.CHECK -> {
                        checkForUpdate()
                    }
                    ACTIONS.DOWNLOAD -> {
                        try {
                            downloadUpdate()
                        } catch (e: JSONException) {
                            runOnUiThread {

                                // set status text to error
                                statusTextView.setText(R.string.error_download_update)
                                // set progress bar to error
                                progressIndicator.isIndeterminate = false
                                progressIndicator.setProgressCompat(100, false)
                            }
                        }
                    }
                    ACTIONS.INSTALL -> {
                        // ensure path was passed and points to a file within our cache directory. replace .. and url encoded characters
                        val path =
                            intent.getStringExtra("path")?.trim { it <= ' ' }
                                ?.replace("\\.\\.".toRegex(), "")?.replace("%2e%2e".toRegex(), "")
                        if (path!!.isEmpty()) {
                            runOnUiThread {
                                // set status text to error
                                statusTextView.setText(R.string.no_file_found)
                                // set progress bar to error
                                progressIndicator.isIndeterminate = false
                                progressIndicator.setProgressCompat(0, false)
                            }
                            return
                        }
                        // check and sanitize file path
                        // path must be in our cache directory
                        if (!path.startsWith(cacheDir.absolutePath)) {
                            throw SecurityException("Path is not in cache directory: $path")
                        }
                        val file = File(path)
                        val parentFile = file.parentFile
                        try {
                            if (parentFile == null || !parentFile.canonicalPath.startsWith(cacheDir.canonicalPath)) {
                                throw SecurityException("Path is not in cache directory: $path")
                            }
                        } catch (e: IOException) {
                            throw SecurityException("Path is not in cache directory: $path")
                        }
                        if (!file.exists()) {
                            runOnUiThread {

                                // set status text to error
                                statusTextView.setText(R.string.no_file_found)
                                // set progress bar to error
                                progressIndicator.isIndeterminate = false
                                progressIndicator.setProgressCompat(0, false)
                            }
                            // return
                            return
                        }
                        if (file.parentFile != cacheDir) {
                            // set status text to error
                            runOnUiThread {
                                statusTextView.setText(R.string.no_file_found)
                                // set progress bar to error
                                progressIndicator.isIndeterminate = false
                                progressIndicator.setProgressCompat(0, false)
                            }
                            // return
                            return
                        }
                        // set status text to installing
                        statusTextView.setText(R.string.installing_update)
                        // set progress bar to indeterminate
                        progressIndicator.isIndeterminate = true
                        // install update
                        installUpdate(file)
                    }
                }
            }
        }
        // on click, finish the activity and anything running in it
        updateCancel.setOnClickListener { _: View? ->
            // end any download
            updateThread.interrupt()
            forceBackPressed()
            finish()
        }
        updateThread.start()
    }

    @SuppressLint("RestrictedApi")
    fun checkForUpdate() {
        // get status text view
        val statusTextView = findViewById<MaterialTextView>(R.id.update_progress_text)
        val progressIndicator = findViewById<LinearProgressIndicator>(R.id.update_progress)
        runOnUiThread {
            progressIndicator.isIndeterminate = true
            // set status text to checking for update
            statusTextView.setText(R.string.checking_for_update)
            // set progress bar to indeterminate
            progressIndicator.isIndeterminate = true
        }
        // check for update
        val shouldUpdate = AppUpdateManager.appUpdateManager.checkUpdate(true)
        // if shouldUpdate is true, then we have an update
        if (shouldUpdate) {
            runOnUiThread {
                // set status text to update available
                statusTextView.setText(R.string.update_available)
                // set button text to download
                val button = findViewById<BottomNavigationItemView>(R.id.action_update)
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
                    button.tooltipText = getString(R.string.download_update)
                }
                button.isEnabled = true
                // set changelog text. changelog could be markdown, so we need to convert it
                val changelogTextView = findViewById<MaterialTextView>(R.id.update_changelog)
                val markwon = Markwon.create(this@UpdateActivity)
                markwon.setMarkdown(changelogTextView,
                    AppUpdateManager.appUpdateManager.changes.toString()
                )
            }
            // return
        } else {
            runOnUiThread {
                // set status text to no update available
                statusTextView.setText(R.string.no_update_available)
                // set changelog text. changelog could be markdown, so we need to convert it
                val changelogTextView = findViewById<MaterialTextView>(R.id.update_changelog)
                val markwon = Markwon.create(this@UpdateActivity)
                markwon.setMarkdown(changelogTextView,
                    AppUpdateManager.appUpdateManager.changes.toString()
                )
            }
        }
        runOnUiThread {
            progressIndicator.isIndeterminate = false
            progressIndicator.setProgressCompat(100, false)
        }
        return
    }

    @Throws(JSONException::class)
    fun downloadUpdate() {
        val progressIndicator = findViewById<LinearProgressIndicator>(R.id.update_progress)
        runOnUiThread { progressIndicator.isIndeterminate = true }
        // get status text view
        val statusTextView = findViewById<MaterialTextView>(R.id.update_progress_text)
        val lastestJSON: ByteArray?
        // get changelog from
        // make a request to https://production-api.androidacy.com/ammm/updates/check with appVersionCode and token/device_id/client_id
        // and the changelog is the json string in changelog
        var token = AndroidacyRepoData.token
        if (!AndroidacyRepoData.getInstance().isValidToken(token)) {
            Timber.w("Invalid token, not checking for updates")
            token = AndroidacyRepoData.getInstance().requestNewToken()
        }
        val deviceId = AndroidacyRepoData.generateDeviceId()
        val clientId = BuildConfig.ANDROIDACY_CLIENT_ID
        val url = "https://production-api.androidacy.com/ammm/updates/check?appVersionCode=${BuildConfig.VERSION_CODE}&token=$token&device_id=$deviceId&client_id=$clientId"
        try {
            lastestJSON = Http.doHttpGet(url, false)
        } catch (e: Exception) {
            // when logging, REMOVE the json from the log
            Timber.e(e, "Error downloading update info")
            runOnUiThread {
                progressIndicator.isIndeterminate = false
                progressIndicator.setProgressCompat(100, false)
                statusTextView.setText(R.string.error_download_update)
            }
            return
        }
        // convert to JSON
        val latestJSON = JSONObject(String(lastestJSON))
        val changelog = latestJSON.getString("changelog")
        runOnUiThread {
            // set changelog text. changelog could be markdown, so we need to convert it
            val changelogTextView = findViewById<MaterialTextView>(R.id.update_changelog)
            val markwon = Markwon.create(this@UpdateActivity)
            markwon.setMarkdown(changelogTextView, changelog)
        }
        // get the download url
        var downloadUrl = url.replace("check", "download")
        // append arch to download url. coerce anything like arm64-* or aarch64-* to arm64 and anything like arm-* or armeabi-* to arm
        downloadUrl += if (Build.SUPPORTED_ABIS[0].contains("arm64") || Build.SUPPORTED_ABIS[0].contains("aarch64")) {
            "&arch=arm64"
        } else if (Build.SUPPORTED_ABIS[0].contains("arm") || Build.SUPPORTED_ABIS[0].contains("armeabi")) {
            "&arch=arm"
        } else if (Build.SUPPORTED_ABIS[0].contains("x86_64")) {
            "&arch=x86_64"
        } else if (Build.SUPPORTED_ABIS[0].contains("x86")) {
            "&arch=x86"
        } else {
            // assume universal and hope for the best, because we don't know what to do
            Timber.w("Unknown arch ${Build.SUPPORTED_ABIS[0]} when downloading update, assuming universal")
            "&arch=universal"
        }
        runOnUiThread {
            // set status text to downloading update
            statusTextView.text = getString(R.string.downloading_update, 0)
            // set progress bar to 0
            progressIndicator.isIndeterminate = false
            progressIndicator.setProgressCompat(0, false)
        }
        // download the update
        var update = ByteArray(0)
        try {
            update = Http.doHttpGet(downloadUrl) { downloaded: Int, total: Int, _: Boolean ->
                runOnUiThread {
                    // update progress bar
                    progressIndicator.setProgressCompat(
                        (downloaded.toFloat() / total.toFloat() * 100).toInt(),
                        true
                    )
                    // update status text
                    statusTextView.text = getString(
                        R.string.downloading_update,
                        (downloaded.toFloat() / total.toFloat() * 100).toInt()
                    )
                }
            }
        } catch (e: Exception) {
            runOnUiThread {
                progressIndicator.isIndeterminate = false
                progressIndicator.setProgressCompat(100, false)
                statusTextView.setText(R.string.error_download_update)
            }
        }
        // if update is null, then we are in a bad state
        if (Objects.isNull(update)) {
            runOnUiThread {

                // set status text to error
                statusTextView.setText(R.string.error_download_update)
                // set progress bar to error
                progressIndicator.isIndeterminate = false
                progressIndicator.setProgressCompat(100, false)
            }
            // return
            return
        }
        // set status text to installing update
        runOnUiThread {
            statusTextView.setText(R.string.installing_update)
            // set progress bar to 100
            progressIndicator.isIndeterminate = true
            progressIndicator.setProgressCompat(100, false)
        }
        // save the update to the cache
        var updateFile: File? = null
        var fileOutputStream: FileOutputStream? = null
        try {
            updateFile = File(cacheDir, "update.apk")
            fileOutputStream = FileOutputStream(updateFile)
            fileOutputStream.write(update)
        } catch (e: IOException) {
            runOnUiThread {
                progressIndicator.isIndeterminate = false
                progressIndicator.setProgressCompat(100, false)
                statusTextView.setText(R.string.error_download_update)
            }
        } finally {
            if (Objects.nonNull(updateFile)) {
                updateFile?.deleteOnExit()
            }
            try {
                fileOutputStream?.close()
            } catch (ignored: IOException) {
            }
        }
        // install the update
        installUpdate(updateFile)
        // return
        return
    }

    @SuppressLint("RestrictedApi")
    private fun installUpdate(updateFile: File?) {
        // get status text view
        runOnUiThread {
            val statusTextView = findViewById<MaterialTextView>(R.id.update_progress_text)
            // set status text to installing update
            statusTextView.setText(R.string.installing_update)
            // set progress bar to 100
            val progressIndicator = findViewById<LinearProgressIndicator>(R.id.update_progress)
            progressIndicator.isIndeterminate = true
            progressIndicator.setProgressCompat(100, false)
        }
        // request install permissions
        val intent = Intent(Intent.ACTION_VIEW)
        val context = applicationContext
        val uri = FileProvider.getUriForFile(
            context,
            "${context.packageName}.file-provider",
            updateFile!!
        )
        intent.setDataAndTypeAndNormalize(uri, "application/vnd.android.package-archive")
        intent.flags = Intent.FLAG_GRANT_READ_URI_PERMISSION
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
        startActivity(intent)
        // return
        return
    }

    enum class ACTIONS {
        // action can be CHECK, DOWNLOAD, INSTALL
        CHECK, DOWNLOAD, INSTALL
    }
}